MAY 2013 VOLUME 55 NUMBER 5 STORM DATA

AND UNUSUAL WEATHER PHENOMENA WITH LATE REPORTS AND CORRECTIONS

NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION noaa NATIONAL ENVIRONMENTAL SATELLITE, DATA AND INFORMATION SERVICE NATIONAL CLIMATIC DATA CENTER, ASHEVILLE, NC Cover: This cover represents a few weather conditions such as snow, hurricanes, tornadoes, heavy rain and flooding that may occur in any given location any month of the year. (Photos courtesy of NCDC)

TABLE OF CONTENTS Page Storm Data and Unusual Weather Phenomena...... …….…....…………...…...... …...... 3 Reference Notes...... ……...... ………...... …..….…...... 675

STORM DATA (ISSN 0039-1972) National Climatic Data Center Editor: Rhonda Herndon

STORM DATA is prepared, and distributed by the National Climatic Data Center (NCDC), National Environmental Satellite, Data and Information Service (NESDIS), National Oceanic and Atmospheric Administration (NOAA).

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2 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ALABAMA, Central Perry County Marion 17 1855CST 0 0 0.00K 0.00K Hail (1.00)

Shelby County 2 ENE Dargin 17 1950CST 0 0 0.00K 0.00K Hail (0.88)

Dallas County 2 NE Selma Skyharbor Arpt 17 2007CST 2020CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell near Morgan Academy for nearly 15 minutes, covering the ground.

Cleburne County 1 NNW Beasons Mill 18 0130CST 0215CST 0 0 0.00K 0.00K Heavy Rain

Approximately two to four inches of rainfall across the area resulted in travel problems in and around Mt. Cheaha State Park, including County Road 13, as portions of the road became impassable.

Cleburne County 2 NE Heflin 18 0130CST 0215CST 0 0 0.00K 0.00K Heavy Rain

Approximately two inches of rainfall across the area led to water covering portions of U.S. Highway 78 northeast of Heflin.

Randolph County 2 S Pine Tuckey 18 0230CST 3 NNW Newell 0800CST 0 0 100.00K 0.00K Flash Flood

Over four inches of rainfall led to road closures and damage in northern Randolph county. Portions of old U. S. Highway 431 near Pineywood Creek and County Road 92 were impassable. A portion of County Road 9 near Lofty was washed away with repairs estimated at $100,000.

Talladega County 2 NNW Mc Elderry 18 0230CST 1 ESE Talladega Muni Arpt 0800CST 0 0 0.00K 0.00K Flash Flood

Three to four inches of heavy rainfall across the area resulted in several roads quickly becoming impassable in northern Talladega county, including Campbell Rd, Highway 21, and Granttown Rd in the city of Munford. Heavy rainfall continued, eventually totaling over five inches, further contributing to flooding problems.

Clay County 7 WNW Dampsey 18 0245CST 6 NNE Watts Mill 0845CST 0 0 0.00K 0.00K Flash Flood

Heavy rainfall trained over northern Clay county, dropping over three inches of rainfall over a couple hours. Stream flow into Lake Chinabee rose quickly, flooding the nearby campground and stranding campers as roads into the area were also flooded. Twenty campers and one animal had to be rescued by law enforcement in boats. Water rescues began around 300AM CST per personal accounts of the campers. No injuries were reported. The Lake Chinabee Recreation Area was closed by the U.S. Forest Service in order to repair damage to the campground, roadways, and hiking trails. It is expected to reopen in September 2013.

Calhoun County 1 NW Eastaboga 18 0300CST 0800CST 0 0 0.00K 0.00K Flash Flood

Four to six inches of rainfall resulted in several roads becoming impassable, including portions of U.S. Highway 78 between Oxford and Eastaboga, and portions of Alabama Highway 21 between Oxford and Munford. All lanes of U.S. Highway 21 south of Oxford were impassable and a stranded motorist was rescued from the high waters. Additionally, during the early afternoon hours on May 18th, a 15 year old male was swept into the swift moving, elevated waters in a culvert and rescued several hundred feet downstream, suffering indirect minor injuries.

3 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ALABAMA, Central St. Clair County Seddon 18 0300CST 2 NE Wattsville 0530CST 0 0 0.00K 0.00K Flash Flood

Three to four inches of rainfall resulted in numerous roads in and around Pell City and Wattsville becoming impassable, including portions of Dr. John Haynes Dr., Florida Rd., Mt. Moriah Rd., and 19th St.

Clay County 1 SSE Dampsey 18 0505CST 2 NNE Pyriton 0930CST 0 0 0.00K 0.00K Flash Flood

As heavy rainfall continued over portions of Clay County overnight, dropping an additional three to four inches of rain to total over 10 inches near Lake Chinabee, flooding worsened and numerous roads in the area became impassable or were washed out, including Abel Rd., Nubbin Creek Rd., Ketchemedoggie Rd., and Good Hope Delta Rd.

Talladega County 1 NNW Curry 18 0540CST 1 ESE Walco 0800CST 0 0 0.00K 0.00K Flash Flood

Four to five inches of rainfall across portions of central Talladega County led to numerous roads becoming impassable due to high water, including Coosa St., Ward St., Battle St., Court St., and East St., all in the city of Talladega. In addition, Kelly Springs Rd at Eastaboga Rd was impassable, and U.S. Highway 77 between Talladega and Waldo was impassable.

Calhoun County 2 S Mahlep 18 0844CST 1200CST 0 0 0.00K 0.00K Flood

After heavy rainfall overnight, six to ten inches of standing water surrounded Leatherwood Baptist Church in Saks.

Randolph County 2 WNW Rice Mill 18 1000CST 1100CST 0 0 0.00K 0.00K Flash Flood

As a result of three to four inches of rainfall, a culvert along County Road 270 north of Wedowee washed out.

On Friday, May 17th, a slow-moving upper level low was rotating across the mid Mississippi River Valley with an associated surface low over Arkansas and surface trough extending southeastward into Alabama. Warm, moist airflow resulted in widespread showers and thunderstorms across northwest Central Alabama during the day, while stronger thunderstorms developed south of the rain area in a more unstable airmass. Some of these storms produced large hail. As this area of rain shifted east through the evening hours on Friday, May 17th, additional thunderstorms developed upstream and tracked across east Central Alabama. A mid level short wave rotating around the upper level low interacted with a low level convergent zone and continued moisture transport into the area to focus developing thunderstorms, which then tracked over the same areas for many hours, resulting in flash flooding during the early morning hours on Saturday, May 18th. Precipitable water values were around 1.70 inches, the 99th percentile for normal precipitable water values for that day. Rainfall estimates of three to five inches with localized amounts over eight inches occurred.

ALABAMA, North Marshall County 2 SW Rocky Ridge 06 0550CST 3 NW Grant 0800CST 0 0 0.00K 0.00K Flood

Heavy rainfall produced flooding from the Paint Rock River along Butler Mill Road, about three miles northwest of Grant, Alabama. Marshall County 2 SW Albertville Muni Arp 06 0550CST 0800CST 0 0 0.00K 0.00K Flood

Heavy rainfall produced flooding just southwest of Albertville, Alabama along Whiteoak Road and Needmore Road. The bridge between Douglas and Albertville, Alabama, was underwater and closed due to the flooding.

4 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ALABAMA, North Morgan County 25 ESE Hulaco 06 0550CST 0800CST 0 0 0.00K 0.00K Flood

Heavy rainfall produced flooding near Boaz, Alabama, as the streets were closed due to high water at the intersection of Mount Vernon and Willow Streets. Marshall County 1 W Saratoga 06 0551CST 0700CST 0 0 0.00K 0.00K Flood

Heavy rainfall resulted in flooding about one mile south of Albertville at South Broad Street from Bobo Street to College Street. Under one foot of water was over the roads. Morgan County 2 NE Winton 07 1404CST 1900CST 0 0 0.00K 0.00K Flood

Heavy rainfall produced flooding with three to four feet of water covering the road in the 900 block of Lower Dry Creek Road, just west-northwest of Lacey's Spring, Alabama. Morgan County 2 NW Huntsville Laceys Sp 07 1404CST 1900CST 0 0 0.00K 0.00K Flood

Heavy rainfall produced flooding just south of Triana, Alabama, with three to four feet of water covering the road on Shop Ford Road near Ballingere Private Drive. A slow moving upper level low pressure system resulted in several prolonged periods of heavy rainfall across the Tennessee Valley. There were a few reports of flooding in Marshall and Morgan counties in North Alabama due to the heavy rainfall.

Limestone County 2 N Tanner 17 1300CST 2 SE Athens 1307CST 2.04 50 0 0 50.00K 0.00K Tornado (EF0)

A short-lived tornado initially touched down along Roy Long Road just west of Highway 31. Several trees were snapped and uprooted around a residential property. The residence itself sustained minor damage as narrow wooden front porch pillars were broken and shifted by the wind. Based upon this damage, the maximum winds were determined to be around 75 mph, which is a mid range EF-0 tornado. The tornado skipped northeast with additional damage along Highway 72, just west of Highway 31. Multiple signs atop a large metal pole were blown out and a portion of the metal siding was ripped off. The tornado weakened after this point, and lifted just northeast of the damaged location.

Limestone County 2 SE Holland Gin 17 1345CST 1346CST 0.15 50 0 0 100.00K 0.00K Tornado (EF0)

This very short-lived tornado was part of the same storm that produced the tornado across the southern portion of Athens, Alabama, earlier. Damage was in less than a quarter of a mile swath between residences along either side of Hardiman Lane. Several residences sustained minor roof damage with shingles blown off. One residence sustained structural damage, as a portion of the bricks were cracked and beginning to pull away from the foundation. Several larger trees around the residences were snapped or uprooted. Maximum winds were estimated to be at 70 mph at this location. Just north of Hardiman lane, a barn sustained roof damage as a significant portion of the metal roof had been pulled off. The tornado rapidly lifted just northeast of this damage location.

A broad upper level low pressure system moving through the Tennessee valley region produced an area of low topped showers and thunderstorms. One of these showers became a miniature supercell and produced two weak, short-lived tornadoes in Limestone County -- one which tracked into the Athens area. This cell produced little or no lightning during its lifetime.

Jackson County Higdon 19 1425CST 1426CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail occurred in Higdon, Alabama in southeast Jackson County, Alabama.

5 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ALABAMA, North

A weak upper level storm system produced scattered thunderstorms in northeast Alabama that produced isolated large hail.

Dekalb County 1 NNE Chavies 22 1512CST 1513CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds downed three trees at a residence. An isolated severe thunderstorm developed along an outflow boundary that moved west through north Alabama out of northwest Georgia. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

ALABAMA, Southwest Baldwin County Daphne 01 1253CST 1255CST 0 0 0.00K 0.00K Hail (1.00)

Mobile County 2 NW Chunchula 01 1930CST 6 N Moffet 2130CST 0 0 0.00K 0.00K Flash Flood

Stationary thunderstorms produced 5 to 15 inches of rain which caused widespread flooded across western Mobile County caused water to flow over Grand Bay-Wilmer Road...about 1/2 mile north of the intersection with Fort Lake Road. Water was also flowing also Newman Road. Roads and parking lots were flooded in Grand Bay.

Mobile County Theodore 02 0300CST 0301CST 0 0 15.00K 0.00K Lightning

A house was hit by lightning causing a fire and block structure damage.

Thunderstorms developed across the area and produced large hail and very heavy rain which caused flooding.

ALASKA, Northern

AKZ226 Northeast Slopes of the Eastern AK Range 03 0300AKS 05 1200AKS 0 0 0.00K 0.00K Heavy Snow

A weakening but moist low pressure center moved northeast across the eastern Alaska Range on the 4th and 5th producing heavy snow over the area. The Mentasta Lake/Bartell Creek Cooperative observer measured 29 inches of new snow from the evening of the 2nd through the 4th. A similar amount was estimated to have fallen at Nabesna by a citizen, and also at Mentasta Pass by the State of Alaska DOT.

AKZ205-206 North Brooks Range Colville River West - North Brooks Range east of Colville River

12 0316AKS 14 2200AKS 0 0 0.00K 0.00K Heavy Snow

AKZ203 Central Beaufort Sea Coast 13 1953AKS 14 0453AKS 0 0 0.00K 0.00K Winter Storm

A cold front moved east across the North Slope on the 12th and 13th..producing heavy snow in the Brooks Range and central Beaufort Sea Coast, along with a period of blizzard conditions near Prudhoe Bay. Zone 203: The Co-operative Observer at Colville River reported 8 inches of snow as of noon on the 13th. Blizzard conditions occurred at Nuiqsut and Deadhorse on the evening of the 13th through the early morning of the 14th.

Zone 205: The Umiat SNOTEL gauge reported a net increase of over 5 inches in snow depth through the morning of the 13th...and it is expected that at least 6 inches fell elsewhere in the zone. Zone 206: The Atigun SNOTEL gauge noted a net increase of 6 inches in snow depth from the morning of the 12th through the early afternoon of the 13th.

6 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ALASKA, Northern Upr Tanana Vly Fortymile 1 E Eagle 17 0200AKS 1200AKS 0 0 500.00K 0.00K Flood

An ice jam formed downstream of Eagle on the 17th causing water levels to rise rapidly. Flooding was the second worst on record...not approaching the levels of 2009. Several structures along Front Street sustained major damage, as well as some homes several miles upstream of Eagle. The road to Eagle Village was covered with large ice pans and ice chunks for a considerable distance. The old Eagle Village site was covered with both ice and water, though residents had moved away from that site following the 2009 flood. Damage amounts estimated major damage to homes as well as Emergency Response costs and road repair work. Yukon Flats Nearby Uplands Circle 19 0930AKS 1900AKS 0 0 1.50M 0.00K Flood

An ice jam released upstream of Circle City and sent a surge of water and ice through the city during the 19th, causing major flooding by inundating the city with 5 to 8 feet of water. Most structures were flooded except for the school which was slightly more elevated. All residents were evacuated to higher ground. The area upstream from the boat launch on the slough was most affected as the water levels brought a considerable amount of ice right into the homes in that area. Elsewhere, the main effects were water damage. One vehicle carrying village elders tried to drive through the flooded street to safety and went off of the road into the ditch. They were rescued in the bucket of a front loader and taken to safety. Water levels according to a long-time resident were the 2nd highest in over 50 years, with only the floods in 1989 more severe. Water levels began falling in the late afternoon and receded below flood level by mid-evening on the 19th. Damage amounts are estimated, and include repairs to 8 homes with major damage and 7 homes with minor damage, along with nearly 1 million dollars expended in emergency response and road repair.

Aerial Photo of Circle City during the flooding. Yukon Flats Nearby Uplands 4 SSW Ft Yukon 20 1300AKS 23 0900AKS 0 0 300.00K 0.00K Flood

On the 20th a surge of water and ice from the upstream river ice breakup moved to near Fort Yukon causing flooding of low- lying areas. A large sheet of ice became stuck 12 miles upstream of Fort Yukon causing widespread flooding of low-lying areas to persist. This affected the ball field, the old tank farm, the area surrounding the tribal hall, several homes, and one of several access roads to the airport. Around midnight on the 21st, the ice jam partially released though river levels did not rise significantly in town as a result. Later on the 22nd river levels began to slowly fall and by the morning of the 23rd levels were below flood stage. Damage amounts are estimated, and include repairs to 4 homes with major damage and 1 home with minor damage, along with affected roads, buildings and emergency response needs.

Upr Tanana Vly Fortymile 127 WNW Chicken 25 0100AKS 1200AKS 0 0 0.00K 0.00K Flood

7 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ALASKA, Northern Middle Tanana Valley 33 E Eielson Afb 25 1200AKS 32 ESE Two Rivers 1600AKS 0 0 0.00K 0.00K Flood

Deltana And Tanana Salcha 25 1600AKS 9 NE Harding Lake 26 1000AKS 0 0 0.00K 0.00K Flood

Rapid snowmelt at higher elevations of the Salcha River basin caused levels to rise rapidly producing minor flooding along the river. The event likely began on the upper stretch of the river during the morning of the 25th, and concluded at tle lower end of the river entering the Tanana River around noon on the 26th. No structures were reported as impacted.

Upper Koyukuk Valley Hughes 27 0200AKS 29 0900AKS 0 0 250.00K 0.00K Flood

An ice jam formed on the Koyukuk River at Hughes during the early morning of the 27th and then broke apart on the morning of the 29th. River water rose significantly on the 27th, flooding the old/lower town site and cutting it off from the upper town site. Water also surrounded the airport by early on the 28th though the airport was still usable. Damage amounts are estimated and includes 2 homes with major damage and 7 homes with minor damage, along with $115,000 to repair public infrastructure.

Nrn & Intr. Seward Peninsula 1 E Buckland 27 0600AKS 29 0800AKS 0 0 2.00K 0.00K Flood

An ice jam formed 1/2 mile downstream from Buckland on the Buckland River during the afternoon of the 26th causing flooding in the village of Buckland beginning the morning of the 27th. Water levels dropped on the morning of the 29th below flood levels. During the event the lower part of the village was flooded and several homes were surrounded by water. Damage amounts are estimated. Lower Koyukuk Middle Ykn Vlys 3 NE Galena 27 0800AKS 0 0 15.00M 0.00K Flood 31 An ice jam formed at Bishop Rock on the Yukon River, downstream of Galena on the 26th and caused water to back up. flooding began during mid-morning of the 27th and flood waters did not recede until the 31st. All structures were impacted by the high water except those significantly elevated or protected by the dike which surrounds the airport. Almost all roads were washed out...with boats being used for emergency transportation. Power was out to most of the city. Many residents were evacuated to nearby villages or to Fairbanks. Ice chunks knocked some houses off their foundation. Other buildings had up to 8 feet of water. At 1830AKST on the 29th water started slowly falling as the ice jam eased a bit. It was not until the morning of the 31st when water levels fell below flood stage. Damage amounts are estimated and include 14 homes destroyed, 90 homes with major damage, and 55 homes with minor damage, and nearly 6 million dollars for emergency response and public infrastructure. Upper Kobuk And Noatak Vlys 1 SSE Kobuk 28 0900AKS 31 0530AKS 0 0 20.00K 0.00K Flood

An ice jam formed on the Kobuk River near the village of Kobuk on the 29th and produced flooding on the 30th through the early morning of the 31st. A number of structures in the village were flooded. Damage amounts are estimated.

ALASKA, Southeast

AKZ020 Glacier Bay 20 0500AKS 0502AKS 0 0 0.00K 0.00K Frost/Freeze

For two cold, calm, and clear nights in a row, temperatures dropped below freezing to threaten Spring growth of sensitive plants.

8 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ALASKA, Southern AKZ101 Anchorage Muni to Bird Creek 17 1350AKS 18 0955AKS 0 0 0.00K 0.00K Heavy Snow

A cold front brought in unseasonable cold air to south central Alaska on May 17 and 18th. In addition there was a weak low in the Gulf of Alaska that moved northward into Prince William Sound as the cold front approached. The result was the front becoming stationary over the Anchorage area with over running moisture from the low that began as rain on Friday May 17th, but turned to snow through the course of the afternoon and persisted into Saturday morning. This was an unusual event in the lateness of the storm in the season as it was the second latest date for accumulating snowfall in Anchorage on record. This storm also made the 2012-2013 snow season the longest duration one on record as there were 232 days (inclusive) between the first and last snowfalls of the season. Although the official measurement of the Anchorage WFO was only .4 inches for the event, it was the anomaly. Snow reports around the rest of the Anchorage bowl ranged from 1.9 to 5.0 inches at lower elevations with numerous reports of 6 inches or more at elevations over 1000 ft.

Copper River Basin 16 NNW Gakona 24 1532AKS 31 2359AKS 0 0 5000.00K 0.00K Flood

The GRSA2 river Gauge reported flood conditions beginning the afternoon of May 24 and persisting to the end of the month. Flood stage is 12 ft and the crest was on May 30th at 14.64 ft. This level ties for the second highest crest on record for this gauge. The BLM campground at Sourdough Creek received some damage from both water and large chunks of ice. Pictures show some damage but BLM was unable to give a damage estimate when asked. Made gross estimate based on damage from pictures.

Copper River Basin Gulkana 25 0927AKS 31 2359AKS 0 0 5000.00K 0.00K Flood

The Gulkana River at the Richardson Highway pushed up past flood levels the morning of May 25th and reached a crest on May 30th around midnight of 12.13 ft. Moderate flood level for this gauge is 10.5 ft. The river observer at Gulkana reported on May 25th: Ice run last night flooded parking area/boat launch area at bridge. Stranded some ice over bank. The river remained above flood stage into June. Ice jams combined with warm temperatures accelerated snow melt in the Copper River basin in late May. This caused the Gulkana river to reach moderate flood stage at a number of locations along the river.

ARIZONA, South

AZZ507>509-511> Chiricahua Mountains - Dragoon/mule/huachuca And Santa Rita Mountains - Eastern Cochise County 513 Below 5000 Feet - Galiuro And Pinaleno Mountains - Upper Gila River And Aravaipa Valleys - Upper San Pedro River Valley 01 0000MST 31 2359MST 0 0 0.00K 0.00K Drought

Little if any rainfall occurred during May. Thus, extreme drought conditions continued across far southeastern Arizona.

21 1136MST 26 1200MST 0 0 2.0K 0.00K Wildfire

Extreme drought conditions and moderate winds resulted in this human-caused fire spreading among dry fuels in the San Pedro River Valley. Pima County 4 S Sabino 27 1430MST 0 0 0.50K 0.00K Dust Devil A nearly translucent, but powerful dust devil damaged the roof to one home on Tucson's east side.

Hot temperatures and light surface winds were conducive to dust devil development.

Pima County 5 SW Continental 31 1305MST 1315MST 0 0 2.00K 0.00K Dust Devil

A powerful dust devil removed several dozen roof tiles from two homes in Green Valley. Wind speeds were estimated at 65 mph. A stove vent was also blown off one roof.

9 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARIZONA, South

Hot temperatures and light surface winds were conducive to dust devil development.

ARKANSAS, Central and North Central Woodruff County 1 N Augusta 01 0000CST 23 0830CST 0 0 10.00K 0.00K Flood

Heavy springtime rainfall kept the White River at Augusta above flood stage from April into much of May before finally dropping below flood stage during the morning of the 23rd. Woodruff County Patterson 01 0000CST Cavell 31 2359CST 0 0 10.00K 0.00K Flood

Heavy springtime rainfall kept the Cache River at Patterson above flood stage from April through all of May, continuing into the month of June. Flooding on rivers within the White River basin continued into May as a result of heavy springtime rainfall.

ARZ003-012-023- Boone - Logan - Montgomery - Newton - Polk - Van Buren 030-040-041 03 0400CST 0700CST 0 0 0.00K 0.00K Winter Weather

ARZ005-013-031 Baxter - Conway - Searcy - Stone 04 0200CST 0 0 0.00K 0.00K Winter Weather Garland County Hot Spgs 04 1353CST 1355CST 0 0 0.00K 0.00K Funnel Cloud

A cold air funnel was photographed near Hot Springs.

ARZ012 Newton 04 2100CST 05 0200CST 0 0 0.00K 0.00K Winter Weather

A very slow-moving upper level low pressure system made its way across Arkansas early in May, bringing an historic weather event to the state. Snow fell in parts of northwest Arkansas, making it the first time snow had ever fallen in the state in the month of May. The previous record for the latest in the spring that measurable snow had ever fallen was 0.2 inch at Corning (Clay Co.) on April 24, 1910. The previous record for the latest in the spring that any snow had ever fallen was a trace at Harrison (Boone Co.), Fayetteville (Washington Co.), and Gravette (Benton Co.) on April 30, 1903. Also, record-breaking cold occurred at dozens of reporting stations. On the 3rd, 4th, 5th, and 6th, numerous stations broke records for the lowest temperatures ever recorded on the dates and others broke records for the coolest high temperatures ever recorded on the dates. In addition, many stations broke or tied the record for the coldest low temperatures they had ever seen in the month of May. These included Leola (Grant Co.), Sparkman (Dallas Co.), Greers Ferry Dam (Cleburne Co.), Murfreesboro 1W (Pike Co.), Arkadelphia 2N (Clark Co.), Searcy (White Co.), Sheridan (Grant Co.), Alum Fork (Saline Co.), Cabot 4SW (Lonoke Co.), Clarksville 6NE (Johnson Co.), Fordyce (Dallas Co.), Pine Bluff (Jefferson Co.), Hot Springs Airport (Garland Co.), Jacksonville (Pulaski Co.), Des Arc (Prairie Co.), Star City (Lincoln Co.), Keo (Lonoke Co.), Little Rock (Pulaski Co.), Saint Charles (Arkansas Co.), North Little Rock (Pulaski Co.), and Rohwer 2NNE (Desha Co.). All of the aforementioned stations had lows in the 30s; Leola and Sparkman reached 32 degrees. Finally, numerous stations broke or tied the record for the coldest high temperatures they had ever seen in the month of May. These included Lead Hill (Boone Co.), Harrison (Boone Co.), Mountain Home 1NNW (Baxter Co.), Flippin (Marion Co.), Calico Rock 2WSW (Izard Co.), Devils Knob (Johnson Co.), Evening Shade 1NNE (Sharp Co.), Hardy (Sharp Co.), Mammoth Spring (Fulton Co.), Mountain View (Stone Co.), Batesville Lock & Dam (Independence Co.), Gilbert (Searcy Co.), Newport (Jackson Co.), Batesville Airport (Independence Co.), Booneville (Logan Co.), Alum Fork (Saline Co.), Batesville Livestock Experiment Station (Independence Co.), Clarksville 6 NE (Johnson Co.), Clarksville Water Plant (Johnson Co.), Des Arc (Prairie Co.), Saint Charles (Arkansas Co.), Conway (Faulkner Co.), Jacksonville (Pulaski Co.), North Little Rock (Pulaski Co.), Cabot 4SW (Lonoke Co.), Keo (Lonoke Co.), Morrilton (Conway Co.), Beedeville 4NE (Jackson Co.), Brinkley (Monroe Co.), Rohwer 2NNE (Desha Co.), Star City (Lincoln Co.), Little Rock (Pulaski Co.), Pine Bluff (Jefferson Co.), Russellville (Pope Co.), and Stuttgart Airport (Prairie Co.).

10 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central Calhoun County Harrell 09 1929CST 0 0 0.00K Hail (1.00)

Bradley County 5 S Warren 09 1938CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)

Trees were blown down on U.S. 63. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Bradley County 4 NNW Cloquet 09 2000CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)

Trees were blown down on Arkansas 8. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cleveland County 3 ESE Orlando 09 2000CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)

Trees were blown down on Arkansas 189. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Prairie County Hazen 10 1100CST 0 0 0.00K 0.00K Funnel Cloud

A funnel cloud was photographed near Hazen. Low pressure aloft moved over Arkansas on the 9th and 10th, creating unstable conditions, especially during the afternoon and evening. A few severe storms resulted.

Calhoun County 5 ESE Delhi 16 2000CST 2 SSW Woodberry 2230CST 0 0 50.00K 0.00K Flash Flood

Heavy rain caused flash flooding in Hampton. Water entered some apartments and a number of streets were flooded. CoCoRaHs observers reported 4.72 inches of rain 3.7 miles south of Hampton and 4.57 inches 6.8 miles southeast of Hampton.

Jefferson County 8 WSW Faith 17 0300CST 4 SSW Bruce 0600CST 0 0 50.00K 0.00K Flash Flood

Very heavy rain fell in the southern part of Jefferson County during the early morning hours of the 17th. Radar showed the swath of heaviest rain from Sulphur Springs to Pinebergen. The 911 center received public reports of rainfall amounts exceeding 5 inches. A CoCoRaHS observer measured 6.62 inches of rain 5.1 miles south-southwest of Pine Bluff and there was a public report of 5.5 inches of rain 4 miles west-southwest of Sulphur Springs. Water entered two homes and a number of roads were flooded, including Old Warren Rd. and Hazel. Ryburn Rd. had to be closed.

Lincoln County 5 N Griffith Spgs 17 0330CST 1 W Grady 0700CST 0 0 20.00K 0.00K Flash Flood

Numerous roads were flooded. Thunderstorms developed across southern Arkansas on the evening of the 16th and the morning of the 17th as an upper level low pressure system moved across the area. Strong thunderstorms resulted and dropped heavy rain.

Logan County 2 NW Booneville 20 2030CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Trees were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Johnson County Coal Hill 20 2100CST 0 0 0.00K Hail (1.00)

11 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central Johnson County Harmony 20 2110CST 0 0 0.00K Hail (1.00)

Pope County 1 WNW Mill Creek 20 2117CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Trees were blown down in the Mill Creek area. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Montgomery County 1 SW Sims 20 2140CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Trees were blown down on Arkansas 88. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Montgomery County 2 S Norman 20 2140CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

Large limbs were blown down. A storm spotter estimated winds at 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cleburne County 2 SW Heber Spgs 20 2248CST 2250CST 0 0 75.00K 0.00K Thunderstorm Wind (65EG)

Part of the roof was blown off a propane company, sheds were destroyed, and trees were snapped off or blown down. One tree landed on a house and another fell on a mobile home. Power poles were snapped off, with power, phone, and cable lines blown down. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Cleburne County 1 SE Shell 20 2253CST 0 0 10.00K 0.00K Thunderstorm Wind (56EG)

A number of large trees were blown down. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. White County 2 ESE Joy 20 2253CST 0 0 60.00K 0.00K Thunderstorm Wind (61EG)

Trees were blown down, and falling trees damaged three mobile homes. A shed was destroyed.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Cleburne County 2 E Shell 20 2255CST 0 0 15.00K 0.00K Thunderstorm Wind (56EG)

A number of large trees were blown down. One tree damaged a residence.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Faulkner County Vilonia 20 2255CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Some trees were blown over. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. White County 1 N Fourmile Hill 20 2300CST 0 0 50.00K 0.00K Thunderstorm Wind (61EG)

Numerous large trees were blown down. A few of the trees landed on houses or mobile homes. A couple of houses had wind damage to their roofs. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

12 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central White County Morning Star 20 2305CST 0 0 20.00K 0.00K Thunderstorm Wind (56EG)

A number of large trees were blown down. One of the trees fell on the end of a mobile home. A small recreational vehicle was blown off its blocks. Two cars were damaged. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Pulaski County 1 S (LIT)Little Rock Ada 20 2310CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Some trees were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. White County 1 NNW Kings Ranch 20 2310CST 0 0 50.00K 0.00K Thunderstorm Wind (65EG)

A small recreational vehicle being used as a residence was blown over. There were no injuries. A large hay barn was blown down, and another barn was damaged. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. White County 1 WNW Velvet Ridge 20 2323CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

A number of large trees were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. White County 1 NE Bradford 20 2327CST 0 0 15.00K 0.00K Thunderstorm Wind (56EG)

The roof was blown off a tractor shed, part of the roof was taken off a shop building, and the roof of a house was damaged. A number of large trees and power lines were blown down.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. White County 2 ENE Velvet Ridge 20 2327CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

A number of large trees were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Independence County Oil Trough 20 2335CST 0 0 5.00K 0.00K Thunderstorm Wind (56MG)

Power lines were blown down. Note: The measured wind gust of 56 knots is equivalent to 64 mph. Jackson County 1 NNE Newport Muni Arpt 20 2348CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Jackson County Tuckerman 20 2351CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Trees and power lines were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jackson County Grubbs 20 2351CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Trees and power lines were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Conway County Morrilton 21 0127CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Trees and power lines were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

13 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central Perry County 3 E Casa 21 0137CST 0 0 20.00K 0.00K Thunderstorm Wind (52EG)

Trees and power lines were blown down in northern and northwestern parts of Perry County.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Johnson County Lamar 21 0312CST 0 0 0.00K Hail (0.88)

Johnson County Lamar 21 0312CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

Large limbs were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Searcy County 1 SSW Booster 21 0400CST 0 0 0.00K Hail (0.75)

Hail up to penny size fell. Searcy County 1 SSW Booster 21 0400CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

Large limbs were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Van Buren County 3 W Choctaw 21 0420CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

A tree was blown down south of Clinton. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Searcy County 2 NE Canaan 21 1200CST 2 NNE Cove 1400CST 0 0 2.00K 0.00K Flash Flood

Several roads were under water south of Marshall. Bradley County 1 NW Cloquet 21 1820CST 0 0 Hail (2.00)

Large hail, up to 2 inches in diameter, fell in the Warren area. A number of pictures were provided in social media.

The approach of an upper level low pressure system and associated cold front triggered thunderstorms in Arkansas, beginning on the evening of the 20th and continuing for much of the day on the 21st. A few of the storms became severe, while others produced heavy rain. Ouachita County East Camden 26 1445CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

The roof was blown off a mobile home. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Woodruff County 1 NE Augusta 29 1810CST 0 0 75.00K 0.00K Thunderstorm Wind (48EG)

A metal building at a truck supply store was destroyed, part of the canopy at a gas station was damaged, and a number of trees were blown down. A couple of the trees landed on structures, including a house and garage.

Daytime heat and humidity led to the development of isolated storms on the afternoon and evening on the 26th and 29th. Note: The estimated wind gust of 48 knots is equivalent to 55 mph. Polk County 2 E Mountain Fork 30 1308CST 1309CST 0.8 200 0 0 35.00K 0.00K Tornado (EF1)

An EF1 tornado blew the roof off a metal barn, destroyed a shed, damaged the roof of a house, and blew down many large trees.

14 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central Baxter County Mountain Home 30 1400CST 0 0 30.00K 0.00K Thunderstorm Wind (52EG)

Numerous trees were blown down in and near Mountain Home. One tree fell onto the roof of a house.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Montgomery County 2 N Huddleston 30 1400CST 1 NW Oden 1407CST 3.37 400 0 2 250.00K 0.00K Tornado (EF2)

An EF2 tornado blew the roof off one house and damaged another. A number of outbuildings were damaged or destroyed. Numerous trees were uprooted or snapped off. Two people were injured.

An EF2 tornado took the roof off of a house at Oden in Montgomery County, Arkansas, on the afternoon of May 30, 2013. Photo by John Robinson, WCM, WFO Little Rock. Baxter County 3 NNE Mountain Home 30 1402CST 1404CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG) Note: The measured wind gust of 51 knots is equivalent to 59 mph.

Pike County 4 SE Kirby 30 1403CST 3 SSW Caney Valley 1407CST 1.48 300 0 0 10.00K 0.00K Tornado (EF1)

An EF1 tornado blew down timber and deer stands. Pike County 1 ENE Rosboro 30 1416CST 1417CST 0.79 200 0 0 5.00K 0.00K Tornado (EF1)

Some trees were blown down. The tornado exited Pike County 1.5 miles northeast of Rosboro and entered Clark County 2.3 miles northwest of Amity. This is the first segment of a four-segment tornado.

Clark County 2 NW Amity 30 1417CST 3 WNW Elm 1427CST 4.08 300 0 5 125.00K 0.00K Tornado (EF2)

This tornado exited Pike County 1.5 miles northeast of Rosboro and entered Clark County 2.3 miles northwest of Amity. In Clark County, the tornado destroyed a mobile home, injuring five people. Four houses had minor damage. A large metal building was badly damaged. Many trees were uprooted or snapped off; one of the trees fell on a house. The tornado exited Clark County 3.2 miles west-northwest of Elm and entered Montgomery County 2.1 miles east-southeast of Welsh. This is the second segment of a four-segment tornado.

15 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central

An EF2 tornado destroyed a mobile home 3.6 miles north of Amity in Clark County, Arkansas, on the afternoon of May 30, 2013. Five people were injured. Photo by John Robinson, WCM, WFO Little Rock. Montgomery County 2 ESE Welsh 30 1427CST 1434CST 3.26 300 0 0 10.00K 0.00K Tornado (EF1)

This tornado exited Clark County 3.2 miles west-northwest of Elm and entered Montgomery County 2.1 miles east-southeast of Welsh. In Montgomery County, trees were snapped off or uprooted. The tornado exited Montgomery County 4.2 miles east- northeast of Welsh and entered Hot Spring County 1.6 miles west of Bonnerdale. This is the third segment of a four-segment tornado.

Hot Spring County 2 W Bonnerdale 30 1434CST 1435CST 0.87 100 0 0 5.00K 0.00K Tornado (EF1)

This tornado exited Montgomery County 4.2 miles east-northeast of Welsh and entered Hot Spring County 1.6 miles west of Bonnerdale. In Hot Spring County, trees were uprooted. This is the fourth segment of a four-segment tornado.

Garland County 1 SSW Lake Ouachita East 30 1435CST 3 W Hamilton 1451CST 8.7 300 0 0 100.00K 0.00K Tornado (EF1)

A waterspout developed in Lake Ouachita, north of the Brady Mountain area. Its starting point was determined based on videos and interviews with witnesses. The waterspout moved onshore, becoming a tornado, about 1.5 miles east of Lena Landing. Huge trees were blown down or snapped off on Air National Guard Cove. The falling trees damaged a house and a number of cabins, with some of the cabins having holes poked in their roofs. Farther away from the lake, a lessening number of trees were blown down.

16 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central

An EF1 tornado damaged a house and cabins, and snapped off or uprooted hundreds of trees about 1.5 miles east of Lena Landing on Lake Ouachita in Garland County, Arkansas, on the afternoon of May 30, 2013. Photo by John Robinson, WCM, WFO Little Rock. Polk County 3 SW Cove 30 1444CST 1455CST 5.2 800 0 5 285.00K 0.00K Tornado (EF2)

This tornado exited McCurtain County, Oklahoma, 1.4 miles southeast of Plunkettville and entered Polk County, Arkansas, 3 miles southwest of Cove. In Arkansas, several mobile homes were damaged, including one that was crushed by a large tree and another that rolled over onto two vehicles. Trees were blown down onto a house, and a barn was destroyed. Several houses suffered roof damage. Numerous large trees, power lines, and power poles were blown down. Two cars were crushed by falling trees. Five people were injured.

An EF2 tornado destroyed a mobile home, rolling it over onto two vehicles, 2.2 miles southwest of Cove in Polk County, Arkansas, on the afternoon of May 30, 2013. Photo by John Robinson, WCM, WFO Little Rock. Garland County 1 SW Maddox 30 1449CST 2 N Royal 1508CST 7.16 300 0 0 500.00K 0.00K Tornado (EF1)

17 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central

An EF1 tornado damaged several houses, mostly on their roofs, but one house lost a room that had been added on. A mobile home and two travel trailers were destroyed, and another mobile home had one end torn off. A few barns and outbuildings were destroyed. A falling tree crushed a van and another went through the roof of a mobile home. Numerous large trees were snapped off or blown down.

An EF1 tornado took part of the roof and a room addition off a house 5.4 miles southwest of Royal in Garland County, Arkansas, on the afternoon of May 30, 2013. Photo by John Robinson, WCM, WFO Little Rock. Polk County Hatfield 30 1459CST 0 0 0.00K 0.00K Funnel Cloud

Polk County 4 ESE Hatfield 30 1502CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Trees were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Polk County 2 SE Wickes 30 1532CST 1536CST 2.43 200 0 0 75.00K 0.00K Tornado (EF1)

An EF1 tornado caused a mobile home and a horse trailer to be crushed by falling trees. Shingles were blown off a house. The metal roof was blown off a shed. Numerous trees were uprooted or snapped off.

Polk County 2 E Hartley 30 1550CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Trees were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Polk County 3 E Cherry Hill 30 1617CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Trees were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Drew County Collins 30 1710CST 0 0 0.00K Hail (1.75)

Montgomery County 2 E Cox Spgs 30 1710CST 3 WSW Mimosa 1716CST 3.22 200 0 0 15.00K 0.00K Tornado (EF1)

An EF1 tornado uprooted trees and blew down part of a hay barn.

18 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central Polk County 6 WNW Rich Mtn 30 1715CST 7 NNW Cherry Hill 31 0430CST 0 0 1.75M 0.00K Flash Flood

Widespread flash flooding occurred in Polk County. U.S. 71 was closed from Mena to the Scott County line. Arkansas 8 and Arkansas 370 were flooded in the eastern part of the county. A landslide closed Arkansas 88 a few miles west of Mena. A number of county roads were impassable; 30 bridges were damaged and 3 were washed out. For the 24-hour period ending at 7 AM on the 31st, Big Fork measured 7.55 inches of rain and Mena collected 7.07 inches. At the Mena airport, rainfall on the 30th measured 4.07 inches, followed by another 1.69 inches on the 31st. A fiber optic cable was knocked out of service. As a result, there was no landline phone service, cell phone service, or Internet service to most of the county for about 24 hours from the 30th into the 31st.

Montgomery County 8 NW Pencil Bluff 30 1800CST 6 ENE Story 31 0430CST 0 3 500.00K 0.00K Flash Flood

Brushy Creek washed a house off its foundation about 3.8 miles west-northwest of Pencil Bluff. The house finally stopped moving when it ran up against a tree line. The occupants of the house survived. U.S. 270 flooded near Pencil Bluff and Arkansas 8 flooded near Norman. Numerous county roads were flooded. For the 24-hour period ending at 7 AM on the 31st, Oden measured 6.13 inches of rain and Pine Ridge collected 5.98 inches. At the Mount Ida airport, rainfall on the 30th measured 3.42 inches, followed by another 1.43 inches on the 31st. Also at the Mount Ida airport on the 30th, 0.66 inch of rain fell in the 5-minute period ending at 6:53 PM CDT, 0.97 inch fell in the 10-minute period ending at 6:54 PM CDT, and 1.20 inches fell in the 15-minute period ending at 6:56 PM CDT.

A flash flood on Brushy Creek washed a house off its foundation 3.8 miles west-northwest of Pencil Bluff in Montgomery County, Arkansas, early on the morning of May 31, 2013. The house finally stopped moving when it ran into a tree line. The remains of the house can be seen in the background of the picture. The occupants of the house survived. Photo by John Robinson, WCM, WFO Little Rock.

Montgomery County Caddo Gap 30 1835CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Numerous trees were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Saline County 1 ENE Reform 30 1846CST 2 ENE Alum Fork 1850CST 1.72 250 0 0 25.00K 0.00K Tornado (EF1)

An EF1 tornado took part of the roof off a church and damaged the roofs of several nearby houses. The front of an old motor home was badly damaged by pieces of the church roof flying off. Several outbuildings were damaged or destroyed, and trees were blown down.

19 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central

An EF1 tornado removed much of the roof of a church 3.2 miles northwest of Paron in Saline County, Arkansas, on the evening of May 30, 2013. Photo by John Robinson, WCM, WFO Little Rock. Pike County 1 E Glenwood 30 1847CST 0 0 0.00K Hail (1.00)

Montgomery County 3 E Welsh 30 1850CST 0 0 0.00K Hail (1.25)

Garland County 10 NNW Avant 30 1900CST 5 NE Jessieville 31 0430CST 0 0 275.00K 0.00K Flash Flood

Arkansas 7 flooded near Hot Springs Village and 6 to 8 inches of water covered Central Ave. at the U.S. 70/270 Bypass. Water eventually rose to a depth of 2 feet on some roads in Hot Springs Village. For the 24-hour period ending at 7 AM on the 31st, Jessieville measured 3.80 inches of rain.

Perry County 2 SSW Wye 30 1915CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Trees were blown down on Arkansas 113 near Wye. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Perry County 1 NW Antioch 30 1915CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Trees were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Saline County 11 NW Electric 30 1930CST 8 NE Paron 31 0230CST 0 0 0.00K 0.00K Flash Flood

A number of roads were flooded, especially in the northern and eastern parts of the county. The Alum Fork of the Saline River flooded Arkansas 9. For the 24-hour period ending at 7 AM on the 31st, Alum Fork measured 4.17 inches of rain.

Garland County Hot Spgs 30 1952CST 1957CST 0 0 0.00K Hail (1.50)

20 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central Faulkner County Martinville 30 2000CST 5 ENE Enders 31 0230CST 0 0 0.00K 0.00K Flash Flood

A number of roads were flooded. For the 24-hour period ending at 7 AM on the 31st, Conway measured 3.77 inches of rain.

Pulaski County Maumelle 30 2006CST 0 0 50.00K 0.00K Thunderstorm Wind (52EG)

Trees were blown down, with some falling on houses. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Pulaski County 1 NNE Maumelle 30 2013CST 1 WNW Morgan 2014CST 0.16 150 0 0 150.00K 0.00K Tornado (EF1)

A brief EF1 tornado blew in the north doors of a metal building and pushed out the south wall. A mobile home was moved off its foundation. Numerous trees were snapped off or uprooted.

An EF1 tornado badly damaged a metal building 1.7 miles north-northeast of Maumelle in Pulaski County, Arkansas, on the evening of May 30, 2013. Photo by John Lewis, Senior Forecaster, WFO Little Rock. Pulaski County Wye 30 2015CST Morgan 31 0230CST 1 0 0.00K 0.00K Flash Flood

Numerous streets and roads were flooded. The Little Rock Fire Department responded to several calls of cars stalled in high water. At one time, water was as much as 3 feet deep on some roads in the Ferndale area. The body of an 18 year-old male was found in Coleman Creek on the campus of the University of Arkansas at Little Rock. The state medical examiner ruled drowning as the cause of death, but it was not known how he ended up in the water. He was not a student at the university. At the Little Rock airport on the 30th, 2.06 inches of rain fell in the 30-minute period ending at 9:57 PM CDT, 2.73 inches fell in the 45-minute period ending at 10:13 PM CDT, and 3.09 inches fell in the one-hour period ending at 10:17 PM CDT. The 3.09 inches of rain in one hour broke the previous all-time record for the greatest amount of rain in one hour in Little Rock. The previous record was 3.00 inches on May 26, 1955. M18IW

Pulaski County Marche 30 2030CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Trees were snapped off or uprooted. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

21 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central Pulaski County 1 E Marche 30 2030CST 0 0 50.00K 0.00K Thunderstorm Wind (52EG)

Numerous trees were blown down, with some of the trees landing on houses.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Pulaski County Macon 30 2031CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A trained spotter estimated winds at 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Grant County 1 SW Tull 30 2036CST 2037CST 0.36 200 1 0 25.00K 0.00K Tornado (EF1)

A brief EF1 tornado caused damage, mainly to trees. However, one of these trees killed a 33 year-old man when it fell on his car. He was driving on Main St./Arkansas 291 in Tull on his way to work. This was the first tornado fatality in Grant County in more than 60 years. A few houses had minor roof damage. M33VE

Lonoke County 2 NNE Jacksons Store 30 2055CST 0 0 50.00K 0.00K Thunderstorm Wind (61EG)

Two homes lost their roofs, a home was knocked off its foundation, and trees were blown down.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Scott County Coaldale 30 2230CST Hon 31 0430CST 5 1 9.20M 0.00K Flash Flood

Severe flash flooding occurred across a large part of Scott County. Soon after Midnight CDT on the 31st, two women called 911 after flooding from Mill Creek trapped them in their house at Y City. The Scott County sheriff and a wildlife officer from the Arkansas Game and Fish Commission responded to the call. Soon after the rescuers reached the residence by boat, the house collapsed, causing all four people to drown. (The sheriff was a 41 year-old male, the wildlife officer was a 32 year-old male, and the women in the house were females 60 and 65 years old.) It took until June 2nd to recover the bodies of all the victims. Recovery operations were greatly hampered by another round of heavy rain and flooding on the morning of June 1st. Altogether, about 20 people had to be rescued from the flood waters. U.S. 71, the main north-south route through western Arkansas, flooded at Y City. The flooding caused a car to be washed off the highway and a 42 year-old woman in the car drowned. Her husband survived, but had to cling to the bank of a stream for 6 hours before being rescued. Several other cars were washed off roads, as well, but the motorists survived. Arkansas 28 was washed out at Little Cedar Creek (10 miles east of Y City), Big Cedar Creek (12 miles east of Y City), and the Fourche LaFave River (16.5 miles east of Y City). Numerous county roads and bridges were washed out. For the 24-hour period ending at 7 AM on the 31st, Parks measured 7.78 inches of rain and Waldron picked up 5.26 inches. Houses were flooded at a number of places, including Y City, Boles, and Parks. The American Red Cross indicated 7 houses and 15 mobile homes were destroyed, 9 houses and 4 mobile home had major damage, 13 houses and 3 mobile homes had minor damage, and 14 houses and 8 mobile homes were affected. A fiber optic cable was knocked out of service. As a result, there was no landline phone service, cell phone service, or internet service to most of the county for about 24 hours from the 30th into the 31st. M41PH, M32PH, F60PH, F65PH, F42VE

Lonoke County 5 NW Austin 30 2300CST 5 N Butlerville 31 0500CST 0 0 35.00K 0.00K Flash Flood

Widespread flooding occurred in Lonoke County. Lonoke County Jacksons Store 30 2315CST 0 0 30.00K 0.00K Thunderstorm Wind (61EG)

A barn was blown into the road, and trees and power lines were blown down.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

22 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central Monroe County 2 NNE Allendale 30 2325CST 2 WNW Bayless 2326CST 0.36 100 0 0 25.00K 0.00K Tornado (EF1)

A brief EF1 tornado uprooted or snapped numerous trees in a cemetery, and an adjacent building suffered roof damage.

Monroe County Brinkley Meml Arpt 30 2350CST 2355CST 2.29 200 0 1 150.00K 0.00K Tornado (EF1)

An EF1 tornado began around Greenlee Park on the east side of Brinkley and moved mostly to the north. It took the roof off a house, slightly injuring a person inside. A few other buildings had minor roof damage. Trees were uprooted or snapped off. When the tornado reached Interstate 40, two tractor-trailers were blown over.

An EF1 tornado damaged a house just northeast of Brinkley in Monroe County, Arkansas, soon after Midnight on May 31, 2013. Photo by John Lewis, Senior Forecaster, WFO Little Rock. Garland County 3 W Mt Tabor 31 0000CST 2 NE Avant 2359CST 0 0 0.00K 0.00K Flood

Large amounts of rain over the Ouachita River and its tributaries on May 30th and 31st contributed to a significant rise on Lake Ouachita. The river rose several feet in one day, with further rises into early June.

Montgomery County 3 WNW Washita 31 0000CST 2 E Liberty 2359CST 0 0 0.00K 0.00K Flood

Large amounts of rain over the Ouachita River and its tributaries on May 30th and 31st contributed to a significant rise on Lake Ouachita. The river rose several feet in one day, with further rises into early June.

Jackson County 3 NE Ingleside 31 0230CST 2 NNW Blackville 0700CST 0 0 0.00K 0.00K Flash Flood

Water was flowing across Arkansas 17 at Weldon. Hot Spring County Jones Mill 31 0230CST 0630CST 0 0 0.00K 0.00K Flood

Very heavy rainfall on the evening of the 30th into the morning hours on the 31st, along with Remmel Dam releases, caused the Ouachita River at Jones Mill to rise above flood stage during the early morning hours on the 31st. This river fell rapidly back below flood stage only about 4 hours later.

23 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central Cleburne County 8 W Prim 31 0300CST Almond 0900CST 0 0 250.00K 0.00K Flash Flood

Heavy rain caused considerable damage to county roads and bridges.

Searcy County 1 S Pindall 31 0300CST 5 E Cozahome 0900CST 0 0 250.00K 0.00K Flash Flood

Heavy rain caused considerable damage to county roads and bridges.

Stone County 12 W Fifty Six 31 0300CST 15 NNW Allison 0900CST 0 0 600.00K 0.00K Flash Flood

Heavy rain caused considerable damage to county roads and bridges.

Van Buren County 8 NW Rupert 31 0300CST Dennard 0900CST 0 0 175.00K 0.00K Flash Flood

Heavy rain caused considerable damage to county roads and bridges.

Woodruff County 5 N Fitzhugh 31 0300CST 0900CST 0 0 325.00K 0.00K Flash Flood

Heavy rain caused considerable damage to county roads and bridges.

Independence County Cushman 31 0400CST Dowdy 0900CST 0 0 275.00K 0.00K Flash Flood

There was considerable damage to county roads and bridges. For the 24-hour period ending at 7 AM on the 31st, Batesville Lock and Dam measured 4.26 inches of rain. At the Batesville airport, rainfall on the 31st measured 6.25 inches.

Perry County 5 W Fourche Jct 31 0600CST 2359CST 0 0 0.00K 0.00K Flood

Nimrod Lake began a rapid rise, due to heavy rain over the Fourche LaFave River and its tributaries.

Yell County 4 SW Birta 31 0600CST 2359CST 0 0 0.00K 0.00K Flood

Nimrod Lake began a rapid rise, due to heavy rain over the Fourche LaFave River and its tributaries.

Yell County 2 E Gravelly 31 0745CST 2359CST 0 0 75.00K 0.00K Flood

Very heavy rainfall on the evening of the 30th into the morning hours of the 31st caused the Fourche LaFave River near Gravelly to rise rapidly above flood stage during the morning hours on the 31st, reaching a record level of 32.6 feet about midday. This river remained above flood stage into the early morning hours on June 1st.

24 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central Woodruff County 2 N Augusta 31 2130CST 2359CST 0 0 1.00K 0.00K Flood

Heavy rainfall in late May caused the White River at Augusta to rise back above flood stage during the evening hours on the 31st. This river remained above flood stage into June. The approach of low pressure aloft triggered numerous thunderstorms from the 30th into the early morning hours of the 31st. Tornadoes, severe thunderstorms, and flash flooding occurred. The flooding killed six people, and the tornadoes killed one. The same weather system caused severe storms and flash flooding again on June 1st. For the 24-hour period ending at 7 AM on the 31st, a band of very heavy rain fell from Waldron and Mena to Conway and Little Rock and then on to Newport and Augusta. Within this band, rainfall amounts of 3 to 5 inches were common, and isolated totals exceeded 7 inches. Also on the evening of the 30th, 3.09 inches of rain fell in one hour at Little Rock, breaking the all-time record for the greatest amount of rain in one hour in the city. The previous record was 3.00 inches on May 26, 1955. President Barack Obama declared federal disasters in these counties: Cleburne, Independence, Montgomery, Polk, Scott, Searcy, Stone, Van Buren, and Woodruff.

ARKANSAS, East Craighead County (JBR)Jonesboro Muni 21 0030CST Caraway 0035CST 0 0 25.00K 0.00K Thunderstorm Wind (52MG)

Straight line winds of 60 mph moved through the region between Jonesboro and Caraway. A machine shed sustained major damage near Caraway. Numerous tree limbs were knocked down in the area as well.

Note: The measured wind gust of 52 knots is equivalent to 60 mph. Lawrence County 1 NE Sedgwick 21 0605CST 0615CST 0 0 0.00K Hail (0.88)

Craighead County Jonesboro 21 0615CST 2 WSW Phillips 0630CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Straight line winds blew down a frame-only construction project on Post Road in Jonesboro.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Craighead County 2 SW Longwill 21 1415CST 1430CST 0 0 0.00K Hail (1.00)

Quarter size hail fell about 3 miles northeast of Trumann. An upper trough and an associated cold front moved into the Lower Mississippi Valley during the evening of May 21st, 2013. Several rounds of showers and thunderstorms developed ahead of the system affecting the Mid-South. Some storms became severe producing large hail, damaging winds, and flash flooding. The first round of storms moved through during the morning hours while a second round affected the region during the afternoon into the evening.

Lawrence County Ravenden 30 1645CST 1650CST 0 1 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked down several trees and a few power poles in Ravenden. One person was injured by a falling tree.

An upper level disturbance moving through the Mid-South interacted with a moist and unstable airmass to produce scattered thunderstorms during the afternoon and evening hours of May 30, 2013 . A few of the storms became severe with large hail and damaging winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. St. Francis County 3 WSW Wheatley 30 2355CST 2357CST 1.02 100 0 0 50.00K 0.00K Tornado (EF1)

A weak tornado crossed from Monroe County into St. Francis County. A few trees and power lines were knocked down. Two tractor trailers were blown off Interstate 40 before the tornado lifted.

25 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, East Poinsett County Trumann 31 0400CST Pitts 0700CST 0 0 424.00K 0.00K Flash Flood

Approximately five inches of rain fell across northern and western Poinsett County resulting in flash flooding. A few homes and several county roads were flooded. Many of the roads that were flooded were badly damaged and had to be repaired.

Cross County 1 ENE Cherry Vly 31 0400CST 1 NNW Birdeye 0410CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked down a power pole on Highway 1 in Cherry Valley and several trees along Highway 163.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cross County 1 NNW Hickory Ridge 31 0430CST 3 SW Bay Vlg 0700CST 0 0 914.00K 0.00K Flash Flood

Approximately seven inches of rain produced flash flooding across Northern Cross County. Highways 42 and 193 and multiple county roads were flooded near Hickory Ridge. One home suffered minor flood damage near Hickory Ridge. The CO-OP was completely flooded. Highways 1 and 42 were flooded near Cherry Valley. A culvert on an unnamed county road was washed out leaving four families stranded. One home had minor flood damage near Cherry Valley.

Craighead County 2 ENE Whitburg 31 0500CST 0700CST 0 0 0.00K 0.00K Flash Flood

Heavy rain produced flash flooding east of Jonesboro where the east end of County Road 912 was closed.

An mesoscale convective system developed over Southern Missouri and Northern Arkansas and pushed across Northeast Arkansas into West Tennessee during the early morning hours of May 31, 2013. A few severe storms produced damaging winds and flash flooding. A couple of weak tornadoes also occurred.

ARKANSAS, Northwest Washington County (FYV)Fayetteville Ar 09 0525CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)

The ASOS instrument at Drake Field in Fayetteville measured 59 mph thunderstorm wind gusts.

Note: The measured wind gust of 51 knots is equivalent to 59 mph. Washington County 3 NW Elkins 09 0531CST 0 0 10.00K 0.00K Thunderstorm Wind (65EG)

Strong thunderstorm wind blew down trees, damaged a roof, blew down a chimney, and damaged a barn.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Washington County Elkins 09 0550CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

A storm chaser reported several trees had been uprooted or snapped by strong thunderstorm winds.

Thunderstorms developed along an outflow boundary that was pushing into northeastern Oklahoma during the early morning hours of the 9th. The storms moved into northwestern Arkansas before sunrise, the stronger of which resulted in damaging wind gusts. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Washington County 1 ENE Johnson 10 0130CST 0330CST 0 0 0.00K 0.00K Flash Flood

Several roads across northern Washington County were reported flooded.

26 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Northwest Benton County Bentonville 10 0300CST 1130CST 0 0 20.00K 0.00K Flash Flood

Numerous roads were closed due to flooding. Flood water was reported in two homes, one of which was evacuated.

Benton County 1 NNE Cave Spgs 10 0300CST 1130CST 0 0 0.00K 0.00K Flash Flood

The intersection of Highway 112 at Wallace Lane was flooded.

Benton County 2 ESE Springtown 10 0300CST 2 WSW Highfill 1130CST 0 0 0.00K 0.00K Flash Flood

Portions of Highway 264 were reported flooded. Benton County Gentry 10 0300CST 1130CST 0 0 0.00K 0.00K Flash Flood

Main Street was reported flooded near Collins Avenue. Benton County 1 NNW Centerton 10 0300CST 1130CST 0 0 0.00K 0.00K Flash Flood

Portions of South Fish Hatchery Road were flooded. Benton County Bella Vista 10 0300CST 1130CST 0 0 0.00K 0.00K Flash Flood

Portions of McNelly Road were flooded. Persistent and occasionally heavy rainfall occurred from the evening of the 9th through the morning of the 10th across parts of northwest Arkansas. Rainfall was sufficient to produce widespread flooding over much of Benton County.

Carroll County Beaver 19 1829CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)

Large tree limbs and power lines were blown down by strong thunderstorm wind across northwestern Carroll County.

Thunderstorms moved east into northwestern Arkansas during the evening of the 19th. Widespread severe weather occurred over eastern Oklahoma as a result of these storms but they weakened by the time they reached the state line and only resulted in isolated damaging wind in northwestern Arkansas. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

Washington County 2 WNW Cincinnati 20 1745CST 1747CST 2.2 500 0 0 100.00K 0.00K Tornado (EF1)

This is the second and final segment of this tornado. In Washington County, this tornado damaged a home, damaged several barns, and snapped or uprooted numerous trees. Based on this damage, maximum estimated wind in this tornado segment was 100 to 110 mph.

Benton County 3 WNW Siloam Spgs 20 1749CST 1754CST 2.9 500 0 0 50.00K 0.00K Tornado (EF1)

This tornado developed just east of the state line, traveled east-northeast, and then turned more to the north before dissipating. It caused minor damage to a number of homes and blew down numerous large trees. Based on this damage, maximum estimated wind in the tornado was 85 to 95 mph.

27 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Northwest Carroll County 4 NNE Oak Grove 20 1755CST 0 0 10.00K 0.00K Thunderstorm Wind (56EG)

Large trees limbs and power lines were blown down by strong thunderstorm wind in and around Blue Eye. Numerous power outages resulted from the damage. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Washington County Tontitown 20 1806CST 0 0 20.00K 0.00K Thunderstorm Wind (56EG)

Strong thunderstorm wind destroyed an outbuilding. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Benton County Bentonville 20 1812CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Strong thunderstorm wind estimated to 65 mph blew down large tree limbs.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Washington County Springdale Muni Arpt 20 1813CST 1 0 2.00K 0.00K Thunderstorm Wind (56EG)

Strong thunderstorm wind damaged the sign of a business. The debris from the sign blew across Highway 412, struck a car in the driver side window, and killed the driver instantly. M19VE

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Benton County Bentonville Muni Arp 20 1815CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

The AWOS instrument at Bentonville Municipal Airport measured 61 mph thunderstorm wind gusts.

Note: The measured wind gust of 53 knots is equivalent to 61 mph. Washington County Springdale Muni Arpt 20 1815CST 0 0 0.00K 0.00K Thunderstorm Wind (60MG)

A storm spotter measured thunderstorm wind gusts of 69 mph. Note: The measured wind gust of 60 knots is equivalent to 69 mph. Benton County Lowell 20 1816CST 0 0 10.00K 0.00K Thunderstorm Wind (56EG)

Strong thunderstorm wind blew down numerous large tree limbs, power poles, and power lines across town.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Washington County Springdale 20 1817CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A storm spotter estimated thunderstorm wind gusts of 70 mph.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Benton County Pea Ridge 20 1821CST 0 0 15.00K 0.00K Thunderstorm Wind (70EG)

Strong thunderstorm wind blew down a tree onto a house. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Washington County Wedington 20 1821CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Strong thunderstorm wind gusts were estimated to 70 mph. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

28 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Northwest Benton County 2 E Larue 20 1824CST 1825CST 0.8 270 0 0 50.00K 0.00K Tornado (EF1)

This tornado damaged one home, damaged several boat docks, and blew down trees. Based on this damage, maximum estimated wind in the tornado was 90 to 100 mph. Benton County Garfield 20 1825CST 0 0 15.00K 0.00K Thunderstorm Wind (70EG)

Strong thunderstorm wind blew down a tree onto a house. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Washington County 5 NNE Mayfield 20 1829CST 0 0 15.00K 0.00K Thunderstorm Wind (75EG)

Several large trees were blown down by strong thunderstorm wind, one of which fell onto a house.

Note: The estimated wind gust of 75 knots is equivalent to 86 mph. Carroll County 1 NW Eureka Spgs 20 1837CST 0 0 5.00K 0.00K Thunderstorm Wind (70EG)

Several large trees and a few power poles were blown down by strong thunderstorm wind.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Carroll County Eureka Spgs 20 1840CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

A storm spotter estimated thunderstorm wind gusts to 80 mph.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Carroll County 1 S Beaver 20 1840CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

A storm spotter reported several large trees uprooted or snapped by strong thunderstorm wind.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Crawford County Natural Dam 20 1900CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

Strong thunderstorm wind blew down a tree. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Madison County 1 NNW Huntsville 20 1937CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

Strong thunderstorm wind blew down a large tree. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Sebastian County Ft Smith 20 2010CST 0 0 5.00K 0.00K Thunderstorm Wind (65EG)

Strong thunderstorm wind blew down several trees and power lines.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Crawford County Van Buren 20 2015CST 0 0 2.00K 0.00K Thunderstorm Wind (70EG)

Strong thunderstorm wind blew out the windows of a building on Washington Street. Multiple large trees were also blown down across the county. Note: The estimated wind gust of 70 knots is equivalent to 81 mph.

29 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Northwest Crawford County Van Buren 20 2017CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

Strong thunderstorm wind blew down a large tree. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Franklin County 4 ESE Peter Pender 20 2035CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Small trees and branches were blown down by strong thunderstorm wind onto Highway 23.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Franklin County 2 ESE Poping 20 2044CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

Oak Bend Road at Highway 96 was blocked by large trees that had blown down by strong thunderstorm wind.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Franklin County 1 NE Poping 20 2048CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

A few trees were blown down by strong thunderstorm winds. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Franklin County 1 ESE Altus 20 2049CST 0 0 5.00K 0.00K Thunderstorm Wind (65EG)

A few trees and power lines were blown down by strong thunderstorm winds.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Franklin County 2 S Webb City 20 2049CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Strong thunderstorm wind snapped large limbs, which fell onto the road blocking the intersection of Highways 23 and 96.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Franklin County 6 N Ozark 20 2056CST 0 0 0.00K 0.00K Hail (1.00)

Severe thunderstorms developed along a nearly stationary frontal boundary over central Oklahoma during the early afternoon hours of the 20th. Very unstable air combined with strong low-level and deep-layer shear resulted in long-lived supercells forming over central Oklahoma and moving eastward into eastern Oklahoma. The storms organized into bow echos and line segments over eastern Oklahoma, from which several other tornadoes developed during the early evening hours. One such tornado moved into northwestern Arkansas dissipating north of Cincinnati in Washington County. Two other tornadoes developed in Benton County. Damaging wind and large hail was also widespread across the region from these storms.

Benton County Rogers 30 1353CST 0 2 0.00K 0.00K Lightning

Two people were struck and injured by lightning while outside in a parking lot. Both victims were transported to the hospital.

Benton County Siloam Spgs 30 2050CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

A tree and several large limbs were blown down by strong thunderstorm winds.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Washington County Tontitown 30 2126CST 0 0 0.00K 0.00K Hail (1.00)

30 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Northwest Washington County Springdale 30 2130CST 0 0 0.00K 0.00K Hail (1.00)

Washington County 2 S Savoy 30 2200CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

Several large trees were blown down by strong thunderstorm winds.

Severe thunderstorms developed across central and eastern Oklahoma during the afternoon hours of the 30th, ahead of a dry line over central Oklahoma and along an outflow boundary across northeastern Oklahoma. The storms moved into northwestern Arkansas during the evening, producing some large hail and damaging wind. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. ARKANSAS, Southeast Ashley County 1 E Hamburg 21 1957CST 0 0 4.00K 0.00K Thunderstorm Wind (50EG)

Four trees were blown down in and around Hamburg. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Chicot County 1 S Lake Vlg 21 2010CST 0 0 60.00K 0.00K Thunderstorm Wind (60EG)

Numerous reports of power lines and trees were blown down across the county. Twenty to thirty power lines were blown down on Lake Hall Road. Several power lines and trees were blown down on Highway 159. A tree fell on a camper in Pecan Grove RV Park trapping the resident. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Chicot County 1 NW Grand Lake 21 2048CST 0 0 30.00K 0.00K Thunderstorm Wind (60EG)

A tractor trailor was rolled over on Highway 65 southeast of Eudora. A few trees and power lines were blown down in the area as well. A line of severe storms associated with an advancing cold front moved across the region. A few storms caused wind damage in the form of blown down trees and power lines. Some of these trees fell on structures. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. ARKANSAS, Southwest Union County 2 NNE El Dorado 16 1815CST 0 0 50.00K 0.00K Thunderstorm Wind (55EG)

Numerous trees were downed along with power poles. Some structural damage was also reported.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Union County 1 E Junction City 16 1845CST 0 0 0.00K 0.00K Hail (0.75)

Union County 2 NNE El Dorado 17 1515CST 0 0 0.00K 0.00K Hail (0.75)

Penny sized hail was reported in El Dorado, Arkansas. An upper level low pressure system was moving slowly through Eastern Oklahoma into Western Arkansas during the afternoon hours of May 16th. A lone supercell thunderstorm across North Central Texas developed during the late morning hours of May 16th. This storm developed in a strongly sheared environment which allowed the storm to sustain itself. The storm moved south and east towards a strong instability axis which was oriented across Northeast Texas into Northwest Louisiana. With strong heating, strong instability developed and the supercell thunderstorm intensified as it moved south and east. The storm produced several tornado tracks, some of which occurred in Harrison County Texas and other into Southwest Caddo Parish and Northern Desoto Parish. The storm was a prolific hail and wind producer as well with wind gusts near 100 mph south of Shreveport, Louisiana with large fields of hail which turned numerous acres of land completely white.

31 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Southwest Union County El Dorado 17 1515CST 0 0 0.00K 0.00K Hail (0.75)

A very unstable air mass resulted in extreme instability across southern Arkansas. Some isolated strong to severe thunderstorms formed across Union County, Arkansas along a weak outflow boundary from earlier convection.

Sevier County 1 NW De Queen 21 1530CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Numerous trees were reported down across the entire county. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Sevier County 1 NE Falls Chapel 21 1620CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees were downed on Hwy. 71 near Falls Chapel. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Lafayette County 1 N Lewisville 21 1715CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees were downed in Lewisville, Arkansas. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Union County 2 NNE El Dorado 21 1855CST 0 0 35.00K 0.00K Thunderstorm Wind (54EG)

A large tree fell onto a home causing severe structural damage. No injuries were reported.

Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Union County 1 E Junction City 21 1900CST 0 0 0.00K 0.00K Hail (0.75)

Hail covered the ground in Junction City, Arkansas. A strong upper level trough across the southern Great Basin ejected out into the Southern Plains during the day on May 21st. Strong convection developed during peak heating across the region and this convection was aided by moderate to strong instability, excessive deep layer shear and mid level lapse rates. Add a frontal boundary to the mix and severe thunderstorms became widespread, some of which produced large hail and damaging thunderstorm wind gusts.

CALIFORNIA, North Central Plumas County 1 ESE Bucks Lake 05 1420PST 1500PST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm developed over the Sierra mountains near Downieville around 1:30 pm PDT and was reported to produce hail for over 30 minutes near Bucks Lake in Plumas County (between 3:20 pm PDT and 4:00 pm PDT). It became severe around 3:30 pm PDT with measured hail of 1 inch. The thunderstorm weakened after 4:00 pm PDT.

Sacramento County Arcade 06 1830PST 1 NNE Rosemont 2030PST 0 0 0.00K 0.00K Flood

Redevelopment of thunderstorms that were producing torrential rainfall over the urban areas of Sacramento caused several instances of roadway flooding across the area. Law enforcement reported roadway flooding at Exposition Blvd and Heritage Lane with a vehicle stuck in the roadway, two vehicles stuck in water near Arden and Hwy 160, roadway flooding near Watt Ave and Marconi Ave, as well as roadway flooding at H Street and 37th Street.

A low pressure system from the Great Basin retrograded over California, bringing in unstable conditions with cooler temperatures and an increase in moisture. This caused thunderstorms to develop over the mountains on Sunday, May 5th. Thunderstorms developed in the mountains and the valley on Monday, May 6th.

32 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

CALIFORNIA, Northeast Lassen County 11 ENE Hayden Hill 06 1520PST 0 0 0.00K 0.00K Thunderstorm Wind (56MG)

Wind gust measured at the Ash Valley RAWS. Low pressure off the California coast brought thunderstorms to portions of northeast California on the 6th. Note: The measured wind gust of 56 knots is equivalent to 64 mph. CALIFORNIA, South Central

CAZ091 Southwest San Joaquin Valley 04 1600PST 05 0100PST 0 0 5.0K 0.00K Strong Wind

May began warm and dry. Humidities were in the teens across the mountains of Kern and Tulare Counties on May 1st through the 3rd, and as highs in the southern San Joaquin Valley climbed into the mid 90s on the 2nd, relative humidities in the south end of the Valley fell to 10 percent or lower for several hours. An upper-level low approached central California on May 4th. The southerly flow ahead of the low funneled through the passes and canyons of the Temblors, Diablo Range and the Tehachapi Mountains. This created gusty winds along the west side of the San Joaquin Valley that persisted from the afternoon of the 4th through the evening of 5th. Winds gusted to 51 mph at Sunflower Valley, and to 50 mph at Panoche Road. A gust to 59 mph was measured at the California Highway Patrol Weigh Station at the base of the Grapevine during the late afternoon of May 5th. Winds also gusted to 45 mph at Meadows Field, Bakersfield during this time. The gust at Meadows Field tied the highest gust on record at Bakersfield for May, last occurring on May 23rd, 1990. The upper-level low moved to off Monterey Bay on the evening of May 5th. In addition to the gusty winds generated by the cyclonic circulation, the low also spun subtropical moisture into central California, and as a series of upper-level disturbances rotated around the low, they triggered showers and thunderstorms across the region on the 6th. One of the thunderstorms spawned a tornado that touched down at 7:10 PM on May 6th in the dry riverbed of the Kern River near the intersection of Old River Road and Stockdale Highway, not far from the California State University, Bakersfield, campus in west Bakersfield. The low moved into San Luis Obispo County during the night of May 6th-7th, and tracked across Kern County during the morning of the 7th. Moderate showers continued across parts of the central California interior through the morning hours, and continued over the Southern Sierra Nevada into the afternoon. A few of the stronger showers caused some road flooding, including northeast of Chowchilla and northwest of Bakersfield.

CALIFORNIA, Southeast Inyo County 4 SW Bishop 14 1600PST 3 WNW Laws 1610PST 0 0 10.00K 0.00K Thunderstorm Wind (48EG)

Thunderstorm winds blew down trees and limbs in Bishop. Note: The estimated wind gust of 48 knots is equivalent to 55 mph. Inyo County 3 SE Independence 14 1700PST 1720PST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

Two mesonet sensors measured gusts to 58 mph. A weak low pressure system moving onshore helped produce a few thunderstorms and a brief period of high winds in the Owens Valley. Note: The measured wind gust of 50 knots is equivalent to 58 mph.

CALIFORNIA, Southwest

CAZ048 San Bernardino County Valley/The Inland Empire 01 1138PST 04 1700PST 0 0 400.0K 0.00K Wildfire

The Summit fire started near N. San Gorgonio Avenue and Summit Drive in Banning (Riverside County) around 1138 PST on the 1st. The brush fire burned rapidly toward the northwest, driven by Santa Ana winds of 30-40 mph, destroying one residence and one out building. The fire threatened 450 homes in and around Cherry Valley, CA. Mandatory evacuations were in place for approximately 750 people there. Two firefighters received unknown injuries. The fire burned a total of 3166 acres before being fully contained around 1700 PST on the 4th.

33 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

CALIFORNIA, Southwest

The Summit Fire approaches a neighborhood near Banning. Approximately 450 residences were evacuated, though only one residence was destroyed. Photo courtesy of KABC tv. 02 0500PST 1000PST 0 0 0.00K 0.00K High Wind

CAZ057 Santa Ana Mountains and Foothills 02 0500PST 1100PST 0 0 0.00K 0.00K High Wind

Surface high pressure built into the Great Basin, bringing strong and gusty northeast winds through and below passes and canyons during the morning of the 2nd. Winds temporarily decreased that night, before increasing again, somewhat, the morning of the 3rd.

CAZ048 San Bernardino County Valley/The Inland Empire 02 0724PST 1430PST 0 0 550.0K 0.00K Wildfire

The Van Buren wildfire started around 0724 PST on the 2nd in the median of Van Buren Boulevard at Jurupa Road in Jurupa Valley (Riverside County). Jurupa Rd was closed from Van Buren to Rutile and Van Buren closed from Jurupa to Rutile. Evacuations were ordered for a few hours. The fire burned 12 acres, but destroyed two homes, an RV and 5 out buildings, with damage to two additional residences. No injuries were reported. The fire was fully contained around 1330 PST on the 2nd. The cause of the fire is likely a discarded cigarette.

34 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

CALIFORNIA, Southwest

A 12 acre fire destroyed two residences, an RV and damaged 5 other outbuildings. Firefighters work to mop up the rest of the flames. Photo courtesy of David Bauman, staff photographer for the Press Enterprise newspaper.

CALIFORNIA, Upper

CAZ081 Central Siskiyou County 01 0200PST 0600PST 0 0 0.00K 0.00K Frost/Freeze

A cool and very dry air mass allowed cold temperatures to develop overnight.

22 0100PST 0800PST 0 0 0.00K 0.00K Frost/Freeze

CAZ084 Northeast Siskiyou and Northwest Modoc Counties 22 0100PST 0800PST 0 0 0.00K 0.00K Frost/Freeze

An unseasonably cold air mass combined with clearing skies to allow near record low temperatures to develop this morning.

23 0100PST 0800PST 0 0 0.00K 0.00K Frost/Freeze

An unseasonably cold air mass combined with clearing skies to allow near record low temperatures to develop this morning.

30 0100PST 0700PST 0 0 0.00K 0.00K Frost/Freeze

Clear skies and a cool and dry air mass allowed temperatures to drop below freezing in the east side valleys on this date.

31 0100PST 0800PST 0 0 0.00K 0.00K Frost/Freeze

Clear skies and a cool and dry air mass allowed temperatures to drop below freezing in the east side valleys on this date.

35 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

CALIFORNIA, West South Central CAZ053-054 Los Angeles County Mountains Excluding the Santa Monica Range - Ventura County Mountains

02 0153PST 0955PST 0 0 0.00K 0.00K High Wind

CAZ040-045 Ventura County Coast - Ventura County Coastal Valleys 02 0601PST 11 0548PST 0 0 0.00K 0.00K Wildfire

CAZ046-088 Santa Clarita Valley - Santa Monica Mountains Recreation Area

02 0857PST 1129PST 0 0 0.00K 0.00K High Wind

Strong northeast Santa Ana winds developed across the mountains and inland valleys of Ventura and Los Angeles counties. Wind gusts as high as 74 MPH were reported. In Ventura county, the Santa Ana winds combined with hot and very dry conditions to help spread the Springs Fire which scorched over 24,000 acres.

CAZ053 Ventura County Mountains 15 1250PST 21 2045PST 0 0 0.00K 0.00K Wildfire

The Grand Fire burned 4,346 acres in mid-may with a good chunk of the burned acreage in northern Ventura County, just west- southwest of Gorman. Persistent and gusty northwesterly winds helped to spread the fire.

28 0121PST 2155PST 0 0 0.00K 0.00K High Wind

CAZ054-059 Antelope Valley - Los Angeles County Mountains Excluding the Santa Monica Range

28 0121PST 2129PST 0 0 0.00K 0.00K High Wind

Strong and gusty west to northwest winds developed across the Antelope Valley as well as the mountains of Los Angeles and Ventura counties. Sustained winds between 40 and 50 MPH were reported as well as gusts between 60 and 77 MPH.

30 1530PST 31 2359PST 0 0 0.00K 0.00K Wildfire

CAZ059 Antelope Valley 30 1530PST 31 2359PST 0 0 0.00K 0.00K Wildfire

The Powerhouse Fire burned 30,274 acres in the Antelope Valley as well as the Los Angeles county mountains. The fire started in late May and continued into early June.

CALIFORNIA, Western

CAZ507 North Bay Mountains 01 0005PST 0 0 50.0K 0.00K Strong Wind 01 0100PST 1800PST 0 0 500.0K 0.00K Wildfire

01 0120PST 0 0 25.0K 0.00K Strong Wind

CAZ511 East Bay Hills and the Diablo Range 01 0200PST 0 0 0.00K 0.00K High Wind

36 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

CALIFORNIA, Western CAZ507 North Bay Mountains 01 0356PST 0 0 5.0K 0.00K Strong Wind

CAZ511 East Bay Hills and the Diablo Range 01 0717PST 0 0 0.00K 0.00K High Wind Late on April 30 and into May 1, hot weather, followed by increasingly strong northeast winds which gusted up to 60 MPH in the North Bay Hills, lead to critical fire weather conditions. Powerlines were felled by the strong winds and this helped contribute to several fires in Napa County.

CAZ517 Santa Lucia Mountains and Los Padres National Forest 13 1200PST 0 0 0.00K 0.00K Wildfire 14 Ongoing critical fire weather conditions across the area continued in May, with a large fire burning on Ft. Hunter Liggett.

COLORADO, Central and Northeast Weld County 2 WNW Greeley 11 1435MST 0 0 Hail (1.00)

Weld County 5 SSE Bruce 11 1440MST 0 0 Hail (1.25)

A severe thunderstorm produced large hail, from quarter to walnut size.

Sedgwick County 8 SE Julesburg 16 1110MST 0 0 Hail (1.00)

A severe thunderstorm produced large hail, up to quarter size, in Sedgwick County.

Logan County 10 W Peetz 18 1451MST 0 0 0.00K 0.00K Hail (0.88)

Logan County 10 W Peetz 18 1451MST 0 0 0.00K 0.00K Hail (0.88)

Washington County 5 SW Platner 18 1520MST 0 0 Hail (0.88)

Washington County 10 S Otis 18 1538MST 0 0 Hail (0.88)

Washington County 1 W Otis 18 1541MST 0 0 Hail (1.00)

Logan County 2 NW Sterling 18 1543MST 0 0 Hail (1.00)

Washington County 11 NE Akron Gebauer Arpt 18 1545MST 0 0 0.00K 0.00K Hail (0.88)

Severe thunderstorms produced large hail, up to quarter size, in Logan and Washington Counties.

Phillips County Holyoke 24 1606MST 0 0 Hail (1.00)

Phillips County 3 ESE Amherst 24 1640MST 0 0 Hail (2.75)

A severe thunderstorm produced very large hail, from quarter to baseball size, over eastern Phillips County.

37 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

COLORADO, Central and Northeast Logan County 1 WSW Peetz 27 1445MST 0 0 Hail (1.00)

Logan County 10 W Peetz 27 1452MST 0 0 Hail (1.00)

Logan County 1 WSW Peetz 27 1520MST 0 0 Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Logan County 1 NNW Sterling 27 1627MST 0 0 Hail (1.25)

Logan County 1 NNW Sterling 27 1633MST 0 0 Hail (1.50)

Logan County 9 SE Ford 27 1658MST 0 0 Hail (1.00)

A severe thunderstorm produced large hail, from quarter to walnut size, and wind gusts to 60 mph.

Logan County 10 W Peetz 28 1631MST 0 0 Hail (1.00)

Logan County 1 WSW Peetz 28 1640MST 0 0 Hail (1.00)

Arapahoe County 3 E Deer Trail 28 1832MST 0 0 Hail (1.00)

Sedgwick County 2 S Julesburg Muni Arpt 28 1833MST 0 0 Hail (1.50)

Sedgwick County 1 NW Ovid 28 1840MST 0 0 Hail (2.00)

Logan County 4 NE Buchanan 28 1905MST 0 0 Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Logan County 1 WSW Peetz 28 1920MST 0 0 Hail (1.00)

Logan County 1 W Fleming 28 2054MST 0 0 Hail (1.50)

Logan County 6 S Fleming 28 2120MST 0 0 Hail (1.00)

Logan County 3 SSW Fleming 28 2120MST 0 0 Hail (1.50)

Severe thunderstorms produced large hail, from one to two inches in diameter, and wind gusts to 60 mph.

38 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

COLORADO, East Central COZ090>092 Cheyenne County - Kit Carson County - Yuma County 01 0000MST 31 2359MST 0 0 0.00K 0.00K Drought

Drought conditions across the area continued from April with little change. Yuma and Kit Carson counties were rated as being in Severe Drought, while Cheyenne County was listed as being in Extreme to Exceptional Drought. May precipitation at cooperative observer sites ranged from 45 to 125 percent of normal.

Yuma County 1 NNW Eckley 16 1124MST 0 0 0.00K 0.00K Hail (1.75)

Yuma County 4 NW Wray 16 1148MST 0 0 0.00K 0.00K Hail (1.00)

Yuma County 4 NNE Wray 16 1154MST 0 0 0.00K 0.00K Hail (1.00)

The observer reported hail size ranging from .75 to one inch diameter hail.

Yuma County Wray 16 1227MST 0 0 0.00K 0.00K Hail (1.00)

The hail sizes ranged from nickel to quarter size in town. A thunderstorm developed over northern Yuma county during the late morning. Large hail was reported near Eckley and Wray as the storm moved through the county. The largest hail reported was golf ball size near Eckley.

Yuma County Yuma 18 2145MST 0 0 0.00K 0.00K Hail (1.00)

A large weather system moved out into the High Plains from the Rockies during the day. Strong atmospheric instability and wind shear resulted in several clusters of strong to severe storms during the afternoon and evening. Marginally severe hail was reported in Yuma late in the evening.

Cheyenne County 1 E Arapahoe 24 1541MST 0 0 0.00K 0.00K Hail (1.50)

Description here. Kit Carson County 7 S Stratton 27 1256MST 0 0 0.00K 0.00K Hail (1.25)

Estimated time of report from radar. Kit Carson County 12 SW Burlington 27 1345MST 0 0 0.00K 0.00K Hail (1.00)

One inch diameter hail found on the ground at CR 43 and CR G. Time estimated based on radar imagery.

Cheyenne County 7 N Arapahoe 27 1438MST 1443MST 0.25 50 0 0 0.00K 0.00K Tornado (EF0)

The landspout lasted about 5 minutes before dissipating, remaining fairly stationary.

Cheyenne County 7 N Arapahoe 27 1449MST 1457MST 0.25 50 0 0 0.00K 0.00K Tornado (EF0)

Landspout remained fairly stationary before dissipating.

39 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

COLORADO, East Central Cheyenne County 11 N Cheyenne Wells 27 1506MST 0 0 0.00K 0.00K Hail (1.00)

Estimated time of report based on radar. Cheyenne County 7 N Cheyenne Wells 27 1537MST 1543MST 0.25 50 0 0 0.00K 0.00K Tornado (EF0)

The landspout was observed on streaming video from a storm chaser.

Thunderstorms developed over East Central Colorado during the afternoon. A few of these storms produced large hail, the largest being 1.25 in diameter in Kit Carson County. In addition, three landspouts were reported in eastern Cheyenne county lasting for 5 to 8 minutes. Kit Carson County 3 S Burlington 29 1345MST 0 0 0.00K 0.00K Hail (1.50)

Cheyenne County 8 N Wild Horse 29 1345MST 1346MST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Estimated the wind gusts to be 60-70 MPH. The wind was accompanied by dime size hail and sheets of rainfall. Estimated time of report from radar. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Kit Carson County Seibert 29 1346MST 0 0 0.00K 0.00K Hail (1.25)

Spotter found hail slightly larger than quarters on his deck when he came home. Estimated time of report from radar.

Cheyenne County 9 N Wild Horse 29 1350MST 1407MST 0 0 0.00K 0.00K Hail (1.50)

Hail lasted 15-20 minutes. Estimated time of report from radar.

Cheyenne County 11 NNE Wild Horse 29 1350MST 1407MST 0 0 0.00K 0.00K Hail (0.88)

Kit Carson County Seibert 29 1350MST 0 0 0.00K 0.00K Hail (0.88)

Drifts of hail reported in town. Cheyenne County 9 N Wild Horse 29 1350MST 1407MST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

Estimated the wind gusts to be 75-80 MPH and were accompanied by Ping-Pong ball size hail. Also saw gustnado along the leading of the severe wind gusts. Estimated time of report from radar.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Cheyenne County 18 N Kit Carson 29 1405MST 0 0 0.50K 0.00K Hail (1.00)

Cheyenne County 16 NNW Firstview 29 1415MST 0 0 0.00K 0.00K Hail (1.75)

Hail was reported at CR FF and CR 28.

40 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

COLORADO, East Central Kit Carson County 10 NNE Stratton 29 1430MST 0 0 0.40K 0.00K Hail (1.00)

Hail was reported to have broken a window. Cheyenne County Cheyenne Wells 29 1430MST 1432MST 0 0 30.00K 0.00K Thunderstorm Wind (61EG)

Severe wind gusts from a thunderstorm caused an estimated 20 trees to be blown down in Cheyenne Wells.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Kit Carson County 4 S Burlington 29 1453MST 1457MST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)

Severe thunderstorms developed over Eastern Colorado during the afternoon, generally moving to the northeast. Large hail up to 1.75 inches and severe wind gusts up to 75 MPH were estimated by spotters in Cheyenne county. By the late afternoon the severe thunderstorms had moved east into Kansas. Note: The measured wind gust of 52 knots is equivalent to 60 mph.

COLORADO, South Central and Southeast

COZ082 Pikes Peak above 11000 Ft 08 0400MST 09 1600MST 0 0 0.00K 0.00K Winter Storm

A low pressure system provided abundant moisture to the Pikes Peak Region, and it was cold enough to snow across the higher elevations. Parts of Teller County received over 8 inches of snow, and an estimated 30 inches of snow accumulated at the summit of Pikes Peak. Kiowa County Eads 08 1159MST 1204MST 0 0 0.00K 0.00K Hail (1.00)

Prowers County 7 WSW Bristol 08 1254MST 1259MST 0.1 75 0 0 0.00K 0.00K Tornado (EF0)

Landspout occurred over open country and caused no damage. Kiowa County 3 SE Chivington 08 1306MST 1311MST 0 0 0.00K 0.00K Hail (1.00)

Prowers County 23 S Lamar Arpt 08 1321MST 1322MST 0 0 0.00K 0.00K Thunderstorm Wind (66MG)

Severe storms produced hail up to one inch in diameter, a brief tornado, and severe wind gusts in Prowers County. Note: The measured wind gust of 66 knots is equivalent to 76 mph.

COZ081 Teller County/Rampart Range above 7500 Ft/Pikes Peak between 7500 & 11000 Ft

09 0100MST 0600MST 0 0 0.00K 0.00K Winter Storm

A low pressure system provided abundant moisture to the Pikes Peak Region, and it was cold enough to snow across the higher elevations. Parts of Teller County received over 8 inches of snow, and an estimated 30 inches of snow accumulated at the summit of Pikes Peak. Alamosa County 7 WNW Mosca 20 1553MST 1558MST 0.1 75 0 0 0.00K 0.00K Tornado (EF0)

A landspout occurred over a field.

41 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

COLORADO, South Central and Southeast

A brief landspout caused no known damage in northwestern Alamosa County.

Pueblo County 26 ESE Cedarwood 24 1612MST 1614MST 0 0 0.00K 0.00K Hail (0.75)

Baca County 1 W Campo 24 1948MST 1954MST 0 0 0.00K 0.00K Funnel Cloud

Strong thunderstorms produce small hail from Pueblo County to Baca County. A funnel cloud was seen near Campo in Baca County. Prowers County 11 NE Hartman 25 1600MST 1605MST 0 0 0.00K 0.00K Hail (1.00)

A severe thunderstorm produced hail the size of quarters in northeastern Prowers County.

COLORADO, West

COZ001>014-017> Animas River Basin - Central Colorado River Basin - Central Gunnison and Uncompahgre River Basin - 023 Central Yampa River Basin - Debeque to Silt Corridor - Elkhead and Park Mountains - Flattop Mountains - Four Corners/Upper Dolores River Basin - Gore and Elk Mountains/Central Mountain Valleys - Grand Valley - Grand and Battlement Mesas - Lower Yampa River Basin - Northwestern San Juan Mountains - Paradox Valley/Lower Dolores River Basin - Roan and Tavaputs Plateaus - San Juan River Basin - Southwestern San Juan Mountains - Uncompahgre Plateau and Dallas Divide - Upper Gunnison River Valley - Upper Yampa River Basin - West Elk and Sawatch Mountains 01 0000MST 31 2359MST 0 0 0.00K 0.00K Drought

Minimal changes to drought conditions were experienced across western Colorado in May as a regular series of passing storms kept some precipitation falling across the region. By the end of the month climate reporting stations showed rainfall totals close to a half of an inch above normal in the higher elevations. Across the lower elevations precipitation ranged closer to normal to nearly a half of an inch below normal along portions of the Colorado River basin.

CONNECTICUT, Northeast Windham County Woodstock 21 1516EST 0 0 0.00K 0.00K Hail (0.75)

Windham County Pomfret 21 1546EST 0 0 0.00K 0.00K Hail (0.75)

Hartford County South Windsor 21 1655EST 0 0 0.00K 0.00K Hail (0.75)

Hartford County Manchester 21 1708EST 1719EST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail was reported near Buckland Mall and lasted for just over 10 minutes.

A backdoor cold front pushing south through New England produced isolated severe thunderstorms in north central Connecticut during the afternoon and evening. Hartford County Suffield 29 2020EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Trees were downed in Suffield on Hill Street and a few other locations.

Thunderstorms developed during the evening in warm and humid air behind a warm front over central New England. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

42 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

CONNECTICUT, Northwest Litchfield County Salisbury 21 1650EST 0 0 Thunderstorm Wind (50EG)

Amateur radio reported multiple trees down and on power lines due to thunderstorm winds in Salisbury.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Litchfield County 1 SW Lakeville 21 1650EST 0 0 Thunderstorm Wind (50EG)

Trees and wires were reported down due to thunderstorm winds in Lakeville.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Litchfield County 1 E Falls Vlg 21 1703EST 0 0 Thunderstorm Wind (50EG)

Amateur radio reported trees and wires were downed and on vehicles due to thunderstorm winds in Falls Village.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Litchfield County 1 NW Cornwall Hollow 21 1715EST 0 0 Hail (1.00)

A trained spotter reported quarter size hail from a thunderstorm at the corner of Yelping Hill Road and Town Street near Cornwall Hollow. Litchfield County 1 SSW Lakeville 21 1757EST 1800EST 0 0 Hail (1.75)

The public reported golf ball size hail from a thunderstorm in Lakeville.

Litchfield County 2 NW Litchfield 21 1805EST 1818EST 0 0 Hail (1.00)

A member of the public reported via Facebook that nickel to quarter size hail occurred along Route 63 near Litchfield.

Litchfield County 1 WSW Litchfield 21 1840EST 1842EST 0 0 Hail (0.88)

A member of the public reported nickel size hail from a thunderstorm in Litchfield.

A very warm and humid air mass was in place across northwestern Connecticut on Tuesday, May 21st. A slow moving frontal boundary was situated just north of the area across the Saint Lawrence River Valley along the United States-Canadian border. During the day, a wave of low pressure moved along this boundary, allowing the boundary to slowly push southward towards the area. With strong wind shear aloft and plenty of low level moisture in place, thunderstorms developed during the afternoon hours across eastern New York and moved towards western Connecticut by the early evening hours . Thunderstorms initially formed as single cells and supercells, but eventually organized into several broken lines, which moved from west to east across the area. Many of these storms produced wind damage to trees and power lines. In addition, some thunderstorms produced hail, with hailstones as large as golf ball size. As the surface wave of low pressure moved away and with the loss of daytime heating, thunderstorms eventually ended during the late evening hours.

Litchfield County Canaan 29 1949EST 0 0 Thunderstorm Wind (50EG)

Multiple trees, limbs and power lines were reported down in North Canaan as a result of thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

43 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

CONNECTICUT, Northwest Litchfield County 1 SE Colebrook 29 2005EST 0 0 Thunderstorm Wind (50EG)

Trees were reported down and blocking Bricklemaier Road in Colebrook as a result of thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Litchfield County Salisbury 29 2115EST 0 0 Thunderstorm Wind (50EG)

Multiple trees and wires were reported down as a result of thunderstorm winds in Salisbury.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Litchfield County 1 S Norfolk 29 2123EST 0 0 Thunderstorm Wind (50EG)

Multiple trees and wires were reported down as a result of thunderstorm winds in Norfolk.

During the day on May 29th, a warm front lifted northward across northwestern Connecticut. Although the day began cloudy, some breaks of sun started to occur by early afternoon. At the same time, a potent upper level disturbance over Ontario started to approach the region and a strong jet streak was located just to the north. With a moist southerly flow moving into the region at the surface, it became rather humid as well. With all these ingredients coming together, thunderstorms developed across upstate New York by mid afternoon and they began to spread eastward. The thunderstorms eventually organized into a few distinct squall lines. The lines of storms reached northwestern Connecticut by the evening hours and moved northwest to southeast across Litchfield County. Many of these storms produced wind damage, mainly to trees and power lines. In addition, these thunderstorms produced a significant amount of lightning, which in combination with the wind damage, led to some power outages across the area. One of the lightning strikes also caused a brief fire to a barn in Torringford. Thunderstorms pushed east of the area by around midnight, ending the threat of severe weather. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

CONNECTICUT, Southern Fairfield County 2 SSE West Redding 23 1310EST 0 0 0.50K Thunderstorm Wind (52EG)

A large tree limb was reported down next to a house on Diamond Hill Road.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. New Haven County 1 SE Waterbury 23 1500EST 0 0 5.00K Thunderstorm Wind (52EG)

Several trees were reported down on wires along Hamilton Avenue.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Fairfield County 1 NW Bethel 23 1525EST 1 WSW Germantown 1600EST 0 0 0.00K 0.00K Flash Flood

In Danbury, Main St. was closed near Wooster St. due to flooding. Rogers Park Rd. was also closed due to flooding.

An approaching pre-frontal trough, ahead of a cold front, triggered isolated severe thunderstorms over Fairfield and New Haven Counties during the afternoon. These storms also produced heavy rain, which resulted in isolated flash flooding in Fairfield County.

44 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

DELAWARE

DEZ001 New Castle 25 0500EST 2000EST 0 0 0.00K 0.00K Astronomical Low Tide

The combination of a strong northwest flow around an anomalously strong (for late May) low pressure system slowly moving through the New England coastal waters and larger tidal spreads associated with the full moon caused pockets of blowout tides to occur during both low tide cycles on the 25th along tidal sections of the Delaware River and its tributaries. The lowest tide at Reedy Island reached 1.69 feet below mean lower low water. The lowest tide at Delaware City reached 1.70 feet below mean lower low water. Blowout tides start at 1.80 feet below mean lower low water.

25 0900EST 1700EST 0 0 1.25K 0.00K Strong Wind

DEZ002>004 Delaware Beaches - Inland Sussex - Kent 25 0900EST 1700EST 0 0 3.75K 0.00K Strong Wind

Strong northwest winds circulating around a slow moving low pressure system traveling through the New England coastal waters affected Delaware during the daytime on the 25th. Peak wind gusts averaged around 45 mph and damaged some weak tree limbs and wires. Peak wind gusts included 47 mph in Newark (New Castle County) and Lewes (Sussex County) and 44 mph in Saint Georges (New Castle County).

DISTRICT OF COLUMBIA District of Columbia 1 SE Bolling Afb 28 1830EST 2030EST 0 0 0.00K 0.00K Flash Flood

There was water covering on south bound Capitol Street SE and Malcolm X Ave SE at the Overpass which was closed.

A shortwave trough moved north of the region. Organized convection developed near the I-95 corridor where instability was the greatest. Scattered showers and thunderstorms produced large hail, heavy rainfall and damaging winds.

FLORIDA, East Central Martin County 2 ENE Waveland 02 0848EST 0 0 0.00K 0.00K Funnel Cloud

A weather spotter observed three funnel clouds over Hutchinson Island, moving offshore.

Three funnel clouds were observed over Hutchinson Island.

FLZ041 Inland Volusia 03 1610EST 0 0 4.0K 0.00K Strong Wind A deepening low pressure system moved from the northern Brevard coastal waters northward and produced gale conditions along the Volusia County coastline. Wind gusts of 45 to 54 mph were common for several hours. While there was scattered convection in the area, the strongest wind gusts were from gradient, non-convective winds.

Brevard County 2 SSW Rockledge 11 1545EST 0 0 0.00K 0.00K Hail (0.88)

Nickel sized hail was reported in Rockledge. Brevard County 1 S Merritt Is 11 1550EST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)

USAF wind tower 9404 in Rockledge recorded a peak wind gust of 62 mph as a severe thunderstorm moved across the region.

Note: The measured wind gust of 54 knots is equivalent to 62 mph.

45 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

FLORIDA, East Central Brevard County 1 SE Indianola 11 1552EST 0 0 0.00K 0.00K Hail (1.00)

A twitter report indicated quarter-sized hail in Merritt Island.

Brevard County 1 WSW Rockledge 11 1552EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Brevard Emergency Management reported minor wind damage to two mobile homes in Rockledge. Carports, awnings and a porch were damaged by the thunderstorm winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Martin County 1 NW Lighthouse Pt 11 1755EST 1758EST 0 0 0.00K 0.00K Hail (1.00)

A weather spotter in Stuart observed hail falling for several minutes, increasing from nickel to quarter size.

Martin County 1 SE Stuart 11 1800EST 0 0 0.00K 0.00K Hail (0.88)

A spotter observed nickel sized hail in Stuart. Martin County 1 WSW Rio 11 1815EST 0 0 0.00K 0.00K Hail (0.88)

A weather spotter observed nickel sized hail at the Treasure Coast Mall on US Highway 1 in Jensen Beach.

Several strong to severe thunderstorms developed as they interacted with the sea breeze near the east coast, from Brevard County to Martin County. Wind gusts up to 62 mph and hail to quarter size were observed. Some minor wind damage occurred in Rockledge.

FLZ041 Inland Volusia 14 1310EST 1 0 0.00K 0.00K Rip Current A inexperienced swimmer at an unguarded beach was caught in a rip current and drowned. M22IW

Lake County 2 SSW South Clermont 19 1634EST 0 0 0.00K 0.00K Hail (0.88)

A weather spotter observed nickel sized hail falling near Lake Louisa.

A strong thunderstorm associated with diurnal convection produced nickel sized hail in southern Lake County.

Orange County 1 ESE Christmas 23 1745EST 0 0 0.00K 0.00K Hail (1.00)

A report courtesy of the NSSL SHAVE Project indicated quarter size hail in the town of Christmas within rural eastern Orange County. Orange County 4 SSE Christmas 23 1750EST 0 0 0.00K 0.00K Hail (1.50)

A report courtesy of the NSSL SHAVE Project confirmed ping-pong ball sized hail fell in rural eastern Orange County.

Scattered strong diurnal convection become locally severe as a storm produced large hail between Highway 520 and Highway 528 in rural eastern Orange County.

FLZ054 Indian River 31 1700EST 1 0 0.00K 0.00K Rip Current The Indian River County Beach Patrol confirmed media reports of a drowning. The main died after being caught in a strong rip current at a beach park in Vero Beach. M22IW

46 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

FLORIDA, Extreme Southern Monroe County 2 WSW Stock Is 02 1015EST 1430EST 0 0 5.00K 0.00K Flood

Flooding was reported in the Old Town Historic District of Key West, including up to two feet of flood depth at the corner of Front and Simonton Streets, at Duval and Greene Streets, and up to three feet in depth at Duval and Front Streets. Up to 7 inches of rain was measured at the Key West Wastewater Treatment Plant on the south end of Fleming Key. Several businesses had water inundation to around 6 inches in depth.

Monroe County 1 WSW Stock Is 02 1106EST 1400EST 0 0 0.00K 0.00K Flood

Flooding up to two feet in depth was observed at the corner of White and Eaton Streets in Key West.

Monroe County 1 SW Stock Is 02 1213EST 2100EST 0 0 0.00K 0.00K Flood

Widespread street flooding occurred in a section of Mid Town Key West, including inundation of two and a half feet along Thompson and George Streets, and up to one foot in depth at the corner of Jose Marti Drive and North Roosevelt Boulevard. A retention and floodwater staging pond overflowed due to blocked drainage culverts leading to the Gulf of Mexico under North Roosevelt Boulevard.

Monroe County 1 ESE Stock Is 02 1213EST 1400EST 0 0 0.00K 0.00K Flood

Significant flooding was observed on Patterson Street in Mid-Town Key West, causing a commercial-sized dumpster to float down the street. Monroe County 2 NE (EYW)Key West Inl Ar 02 1415EST 1600EST 0 0 0.00K 0.00K Flood

Street flooding up to two feet in depth was observed along South Roosevelt Boulevard between Flagler Avenue and the Overseas Highway. Thunderstorms developed in cyclic fashion over Key West and adjacent nearshore waters over a duration of three hours, producing widespread street flooding and flooding to businesses along the lower elevations of Key West.

Monroe County 2 WSW Stock Is 29 1230EST 1500EST 0 0 0.00K 0.00K Flood

Key West Police Department officers reported the 100 to 300 blocks of Duval Street were barricaded due to street flooding. Public reports were received of flooding within one block of Front and Duval Streets.

Monroe County 1 E Stock Is 29 1250EST 1500EST 0 0 0.00K 0.00K Flood

Key West Police Department officers reported the left lane of North Roosevelt Boulevard was closed within a few blocks of 17th Street due to flooding. Thunderstorm with heavy rainfall produced significant street flooding in the Old Town Historical District of Key West, as well as along the north side of the New Town section.

47 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

FLORIDA, Northeastern St. Johns County 1 NE St Augustine 01 0600EST 0 0 Heavy Rain 03 An observer measured 9.66 inches from May 1 through the 3rd.

Duval County 2 SSW Greenland 02 0600EST 2020EST 0 0 Heavy Rain

A trained spotter in Bartram Park and Mandarin measured a rainfall total of 4 inches since 7 am that morning.

Flagler County 1 S Flagler Beach 02 0600EST 03 1030EST 0 0 Heavy Rain

Storm total rainfall total over the past 24 hours was 7.19 inches. Four inches were measured since midnight on the 3rd. Additional rainfall amounts from May 2 through 9:30 am on May 3: 7.75 inches in Bulow, 7 inches in Central Palm Coast; 5.75 inches in south central Palm Coast. Widespread power outages and sporadic trees down occurred across the county over the 2 day period due to saturated grounds and gusty onshore flow with non-convective wind gusts up to 40 to 50 mph on May 3rd. On May 3rd, the county Park Department closed Princess Place Preserve as a precaution due to coastal flooding and the chance of trees falling due to saturated grounds.

Duval County 1 W Cedar Hills 02 1700EST 0 0 1.00K 0.00K Flood A branch of the Cedar River was escaping its banks and causing areal flooding. The cost of damage was unknown, and only estimated so the event could be included in Storm Data. St. Johns County 1 NE St Augustine 03 0430EST 0445EST 0 0 5.00K 0.00K Flash Flood

Flash flooding occurred in downtown St. Augustine near King and Cordova Streets, and the surrounding areas. Vehicles were trying to escape the area due to rising high water. The cost of damage in the area was estimated for the event to be included in Storm Data. Note that the true cost of damage was unknown.

Clay County 1 E Penney Farms 03 0845EST 1 W Mill Creek 1035EST 0 0 20.00K 0.00K Flood

There were several roads in Penny Farms closed due to standing flood waters due to heavy rainfall. Water was up to the bottom of the bridge on Everett Avenue at Dillaberry Branch which runs into Black Creek. Also. the water was spilling over North Dolphin Avenue. Creeks were coming out of their banks and additional flooding occurred in the Foxmeadow subdivision. A spotter measured a 24 hr rainfall total in Foxmeadow of 4.26 inches. The cost of damage from flooding was estimated only so the event could be included in Storm Data. The value is likely a gross underestimate.

Bradford County 1 W Starke 03 0915EST 1145EST 0 0 20.00K 0.00K Flood

All four lanes of Highway 301 in Starke were closed to flooding between Market Road and State Road 16. Water and Laura Streets also had major flooding. Many other roads were closed in sections of the city due to flooding. The cost of damage was estimated and is likely grossly underestimated.

Bradford County 1 SW Starke 03 1145EST 1245EST 0 0 50.00K 0.00K Flood

Minor flooding of businesses and residences was reported along Highway 310 from Starke to Lawtey. Several roads were closed due to flood waters. The cost of damage was estimated for event inclusion in Storm Data.

FLZ025-033 Duval - St. Johns 03 1200EST 0 0 High Surf

48 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

FLORIDA, Northeastern Clay County 2 E Doctors Inlet 03 1400EST 0 0 Heavy Rain

A measured 4.64 inches was recorded on the west side of Fleming Island since the morning of Thursday, May 2nd.

FLZ038 Flagler 03 1535EST 0 0 High Surf Deep layer cyclonic flow and very high moisture content produced several days of soaking rainfall during a develop local Nor'Easter event. After locally heavy rainfall on May 2 and 3, strong onshore flow and gusty winds of 40 to 50 mph started to caused trees to come down over inland northeast Florida from Bradford county to Flagler county.

Duval County 1 W Goodbys 04 1100EST 0 0 1.00K 0.00K Flood Minor flooding was reported at Happy Bluff and Forest Circle. Water was backing up through storm drains due to elevated water levels in the St. Johns River. The cost of flooding damage was estimated.

FLZ025 Duval 04 1540EST 1548EST 0 0 Coastal Flood

Duval County 3 SSE Jacksonville 04 1855EST 0 0 3.00K 0.00K Flood Flooding occurred in San Marco between San Marco Blvd and LaSalle Street. The cost of damage was estimated.

Duval County Wesconnett 04 1900EST 1947EST 0 0 50.00K 0.00K Flash Flood

Multiple reports of water occurred over the roads 2-3 feet deep in some areas with some structural flooding. A lot of flooding occurred between Bambi Lane and 105th Street and Interstate 295 and Blanding Blvd. The public also reported vehicles were stranded between Overland Park Blvd and Bear Creek Road. Clay County Emergency Management reported significant street flooding with impassable roads and stranded vehicles between Kingsley Avenue and Wells Road and Blanding Blvd and US- 17. The Sheriff's Office reported that the Julington Creek Bridge was closed due to high water on both ends of the bridge. The bridge was later opened. The cost of damage was estimated and is likely grossly underestimated. A storm spotter measured 4.32 inches of rainfall between 6 pm and 8 pm in the Jacksonville westside. Street flooding was reported at Harlow Blvd and Cinderella Road, Harlow Blvd between Boy Blue Road and Bambi Lane, and Boy Blue Road was completely under water from Harlow Blvd to Anvers Blvd.

St. Johns County 3 SE Elwood 04 1925EST 0 0 Thunderstorm Wind (50EG)

Trees and power lines were blown down at State Road 16 and State Road 16A. The time of damage was based on radar imagery. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. St. Johns County 4 N Bakersville 04 1939EST 0 0 Hail (0.75)

Hail was reported at State Road 16 and International Golf Parkway.

St. Johns County 2 W Glimpse Of Glory 04 1950EST 0 0 Thunderstorm Wind (50EG)

Trees and power lines were blown down along State Road 16. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. St. Johns County 1 N Elkton 04 2014EST 2016EST 0.91 200 0 0 500.00K 0.00K Tornado (EF0)

49 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

FLORIDA, Northeastern

A barn was severely damaged at Jen-Sar Farms and Produce store. A large barn was destroyed with noticeable debris lofted into nearby structures. A large tree was snapped at its base and fell on a mobile home causing significant damage by splitting the unit in two. Multiple trees were uprooted and fell on a boat near Elkton. The cost of damage was estimated, and is likely underestimated.

St. Johns County 1 N Palm Vly 04 2015EST 2 SE Orangedale 2215EST 0 0 0.00M 38.25M Flood

Street flooding occurred along State Road 16 and State Road 13. Widespread water over the roadways was reported. The public reported flooding at Lake Julia in the vicinity of Sawgrass County Club in Pone Vedra. Heavy rainfall combined with drifts of hail caused major crop damage near Hastings and Elkton. Potato plants were severely damaged, and about 60% of the St. Johns County potato crop was likely lost. The cost of potato crop damage to about 8,500 acres of plants was estimated to be around $38,250,000, based on a yield of $4.5K/acre of potatoes. Melons and field corn crops were also damaged. The County Commission voted to pursue federal disaster relief funding. The crops were maintained through late season freezes in February and March, so many farmers were trying to rebound from these expensive events. The damage from the heavy rainfall and hail was very devastating to farmers and suppliers.

St. Johns County Elkton 04 2020EST 0 0 Thunderstorm Wind (50EG)

Trees and power lines were blown down along State Route 207. The time is estimated from radar imagery.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. St. Johns County 4 SE Elkton 04 2040EST 0 0 Thunderstorm Wind (50EG)

Over 60 reports of power lines damaged from fallen trees and strong winds were reported over the southwest portion of St. Johns county. The time of damage was based on radar. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. St. Johns County 4 WSW Marineland 04 2050EST 0 0 Hail (0.75)

Hail was observed at U.S. Highway 1 at the Flagler/St. Johns county line.

A series of weak surface low pressure systems draped across the the deep south including the central Florida peninsula combined with an approaching cold front over a very saturated airmass triggered a cluster of storms over Nassau county that produced a strong outflow that tracked SE over western Duval county. When this outflowed encountered ESE flow and feeder bands moving inland from the Atlantic, the cell became nearly stationary over southern Duval and NE Clay counties where it produced flash flooding during the evening. The cell pulsed up and became severe over northern St. Johns county where low level helicity was greatly increased from the strong 20 kt surface winds from the ESE on the north side of a meso low that lifted northward over Alachua and Putnam counties. The cell began to strong very strong and deep layer rotation over northern St. Johns county, and a tornado warning was issued. The cell then collapsed within the next few radar scans, but weak rotation was still present. When a very strong downburst raced southward over St. Johns county, the downburst produced widespread damage to farmland near Elkton and a weak EF1 tornado touched down, on the bookend of the downburst. Flooding rainfall and deep hail drifts of penny size hail caused extensive damage to cropland near Elkton, with severe financial impact to farmers in the area.

St. Johns County 1 SE South Ponte Vedra Bc 11 1535EST 0 0 Thunderstorm Wind (50EG)

Trees and limbs were blown down in Guana River State Park. The time of damage was based on radar imagery.

A weak passing upper level short wave trough combined with the sea breeze fronts and high moisture fueled scattered storms over the area. One severe storm developed and produced wind damage in St. Johns County. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. FLZ025 Duval 15 1230EST 0 0 0.00K 0.00K Rip Current Onshore flow increased the rip current risk...as well as the falling tide.

50 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

FLORIDA, Northeastern Bradford County 1 S Graham 15 1950EST 0 0 Hail (1.00)

Nassau County 1 SW Callahan 18 1658EST 0 0 Hail (0.88)

Penny to nickel size hail was reported. Bradford County 2 SSE Graham 18 1950EST 0 0 Hail (1.25)

Quarter to half-dollar size hail was reported. Bradford County 1 N Brooker 18 1950EST 0 0 Thunderstorm Wind (55EG)

Several trees were blown down in Brooker. Trees fell on two mobile homes, which tore the roof off of one of the homes. The cost of damage was unknown. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Bradford County 1 W Sampson City 18 1950EST 0 0 Thunderstorm Wind (50EG)

A large tree was blown down which knocked down power lines. The combination of an approaching but weakening short wave trough over SW Georgia, convective outflow boundaries and the sea breezes over a moist and unstable airmass triggered scattered strong to severe storms over NE Florida during the late afternoon and evening hours. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Clay County 5 W West Tocoi 19 1550EST 0 0 Thunderstorm Wind (50EG)

A tree was blown down at the intersection of Sungarden Road and Old Bostwick Road.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Clay County 7 ESE Belmore 19 1600EST 0 0 Thunderstorm Wind (50EG)

Clay electric reported multiple sites with power lines downed by trees and large limbs across Clay and northern Putnam county.

Scattered severe storms developed over NE Florida during the late afternoon over an unstable and moist airmass where the sea breezes and outflows converged. During the evening, and upper level disturbance over SE Georgia fueled severe storms where outflows converged. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Marion County 1 S Ft Mc Coy 20 1430EST 0 0 Hail (0.75)

Pea to penny size hail was reported in Fort Mccoy. Marion County 1 S Ocala West 20 1500EST 0 0 Thunderstorm Wind (50EG)

Numerous trees were blown down in Ocala. The time of the event was based on radar.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Marion County 1 S Ocala West 20 1505EST 1 0 Thunderstorm Wind (50EG)

A tree was blown down onto two cars. One man was killed. M?VE

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Marion County 1 SE Citra 20 1550EST 0 0 Thunderstorm Wind (50EG)

Numerous trees and power lines were blown down due to thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

51 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

FLORIDA, Northeastern Alachua County 1 W Wacahoota 20 1600EST 0 0 Hail (0.75)

Half inch to penny size hail was reported on Wacahoota. Marion County 1 WSW Silver Spgs Airpark 20 1600EST 0 0 Heavy Rain

The Ocala Water Treatment plant reported 2.9 inches within 24 hours.

Alachua County 2 SW Wacahoota 20 1630EST 0 0 Thunderstorm Wind (50EG)

Large trees were blown down at SW 137th Avenue and SW Williston Road.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Bradford County 1 NE Theressa 20 1755EST 0 0 Thunderstorm Wind (50EG)

Trees and power lines were blown down and blocking State Route 100 at the SE 81st Street in Theressa. The time of the event was based on radar. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. St. Johns County 1 SE Casa Cola 20 1900EST 0 0 0.50K 0.00K Lightning

Lightning struck the St. Augustine Regional Airport runway which caused damage to a 5 foot by 6 foot area of the runway. That section of the runway was closed due to needed repairs. The cost of damage was estimated.

A short wave mid level trough was lingering over the southeast region. A piece of energy traveled over the area during peak heating and this instability and forcing combined with adequate mean layer moisture and forcing from the sea breezes spawned scattered afternoon and evening severe storms.

FLORIDA, Northwest

FLZ011 Jackson 05 1700EST 0 0 0.5K 0.00K Strong Wind Gusty winds behind a cold front resulted in a couple of trees being blown down in northeastern Jackson county near Hornsville. A peak gust of 37 mph occurred at the Marianna airport around the time of the report.

FLZ112 Coastal Bay 30 1300EST 1 0 0.00K 0.00K Rip Current A 25 year old male was transported to the hospital and later died after being pulled from the water during the afternoon hours behind the Legacy by the Sea Resort, located near the 15000 block of Front Beach Road. Strong rip currents were in the area with single red flags flying. M25IW

FLORIDA, Southern Palm Beach County 5 WSW Delray Beach 02 1200EST 1600EST 0 0 0.00K 0.00K Flash Flood

Extensive street flooding was reported in Delray Beach since early afternoon with the area affected bounded by I-95 and Jog Road to the east and west, and roughly from Linton Boulevard and Atlantic Avenue to the north and south. Kings Point neighborhood was told to remain inside until the following morning. Delray Beach Medical Center reported minor flooding on the first floor with measured rainfall of 8.47 inches.

Palm Beach County 2 N Boca Raton 02 1225EST 1227EST 0.4 50 0 0 0.00K Tornado (EF0)

An EF0 tornado touched down near North Dixie Highway and NE 28th St. in northeastern sections of Boca Raton and traveled to near Federal Highway and NE 32nd St. Maximum winds were estimated at 70 mph with damage consisting primarily of downed trees, fences and power lines, with a piece of metal-covered foam roof blown through a house window and a damaged store sign.

52 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

FLORIDA, Southern Broward County (FLL)Ft Laudrdl Intl 02 1300EST 1541EST 0 0 0.00K 0.00K Heavy Rain

Very heavy rain at the Fort Lauderdale International Airport resulted in the northbound entrance from U.S. 1 to be flooded and closed. The ASOS at the airport recorded 3.23 inches of rain which began after 2 PM EDT.

Broward County 1 S Lauderdale By The Se 02 1430EST 1630EST 0 0 0.00K 0.00K Heavy Rain

About 2 feet of water was covering NE 33rd Ave. near NE 26th St. in Fort Lauderdale. The road was blocked with cars turning around. Radar estimated around 4 inches of rain, most of it falling in only a couple of hours.

An upper level low pressure area over the northeast Gulf of Mexico and a surface trough across central Florida combined to produce numerous strong to severe thunderstorms over portions of southeast Florida.

Broward County 1 NW Hollywood N Perry Ar 09 1648EST 0 0 0.00K 0.00K Hail (0.75)

A trained spotter reported penny-sized hail at North Perry Airport.

Miami-Dade County 2 NNE Medley 09 1720EST 0 0 0.00K 0.00K Hail (1.00)

A member of the public reported quarter-sized hail 2 miles north-northeast of Medley.

Miami-Dade County 1 ENE Hialeah Gardens 09 1753EST 0 0 0.00K 0.00K Hail (0.75)

An off duty NWS employee reported penny-sized hail near the intersection of Palmetto Expressway and Okeechobee Road.

Palm Beach County 5 W Tequesta 09 1810EST 0 0 0.00K 0.00K Hail (0.75)

A report of penny-sized hail was received from WPBF in Palm Beach County 1 mile SSE of Jupiter Farms.

A weak upper level trough of low pressure moved across South Florida producing scattered strong to severe thunderstorms.

Palm Beach County 5 SSW Florida Gardens 20 1000EST 1500EST 0 0 0.00K 0.00K Flash Flood

Heavy rains and flooding affected portions of western Boynton Beach and Aberdeen. Rainfall totals were estimated in the 4 to 9 inch range, with measured amounts nearby of up to 8 inches in less than 12 hours. Impacts were primarily to closed streets, fields and parking lots. Park Vista High School was in lock-down mode during the midday hour due to the extent and magnitude of the flooding surrounding the school.

Palm Beach County 1 WNW Mangonia Park 20 1115EST 1 S Riviera Beach 1500EST 0 0 0.00K 0.00K Flash Flood

Palm Beach County Sheriff's Office reported severe road flooding in the Riviera Beach area.

Miami-Dade County 2 W Golden Beach 20 2100EST 0 2 0.00K 0.00K Lightning

Two persons, a 40-year-old man and a 32-year-old woman, were struck by lightning at Aventura Mall close to 10 PM EDT. Both were hospitalized and were released the following day. A mid to upper level low pressure area over Florida combined with a moist east flow to produce periods of torrential downpours and thunderstorms over the course of the day across southeast Florida. Over 2,000 customers were without power in the three-county region of southeast Florida.

53 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

FLORIDA, Southern Miami-Dade County Princeton 22 0900EST 0 0 0.00K 0.00K Funnel Cloud

Pictures were relayed by WSVN-TV of funnel clouds in the Princeton area of southern Miami-Dade County.

Broward County 5 SW Coral Spgs 22 1400EST 0 0 0.50K 0.00K Lightning

Lightning struck the roof of a home in Coral Springs. Tiles were removed from the roof, with no other damage or injuries. Time estimated based on lightning archive data. High moisture and instability led to thunderstorms developing over parts of southeast Florida.

Glades County 18 NE Lakeport 23 2055EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Local law enforcement reported four of five downed trees in the vicinity of Buckhead Ridge.

A surface trough of low pressure was located near Lake Okeechobee resulting in an isolated severe thunderstorm in Glades County. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Broward County 7 W Lauderdale Lakes 24 1634EST 0 0 0.00K 0.00K Hail (0.88)

A meteorologist with WSVN witnessed nickel-sized hail at the Sawgrass Mills Mall.

Broward County 7 WNW Lauderdale Lakes 24 1637EST 0 0 0.00K 0.00K Hail (0.75)

A report was received of penny-sized hail 2 miles north-northeast of the Sawgrass Mills Mall. The report was relayed by Channel 7 news. Collier County 6 SSW Immokalee 24 1745EST 1750EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Twitter report received of strong winds causing tree damage in Ave Maria. A 20-foot tree was split in half and a few smaller trees were uprooted. A surface trough of low pressure located across South Florida resulted in scattered late afternoon thunderstorms. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

FLZ168 Palm Beach 26 1500EST 0 3 0.00K 0.00K Rip Current A strong ridge of high pressure over the southeastern states resulted in breezy onshore winds along the southeast coast of the Florida peninsula with strong rip currents. At least three-dozen swimmers were rescued from rip currents.

FLZ168-172 Coastal Broward - Palm Beach 27 1115EST 1515EST 1 1 0.00K 0.00K Rip Current

A strong ridge of high pressure over the southeastern states resulted in breezy onshore winds along the southeast coast of the Florida peninsula with strong rip currents. M15IW

Palm Beach County 10 N Wellington 29 0600EST 1 WSW Ocean Ridge 1000EST 0 0 0.00K 0.00K Flash Flood

A cluster of very heavy showers moved into northeast Palm Beach County during the early morning producing rainfall estimates of 4 to 7 inches in the areas from The Acreage to Boynton Beach. Flood waters was reported to be entering garages in The Acreage and Park Vista High School in Boynton Beach was reported closed due to flooded parking lots.

Deep tropical moisture persisted across South Florida along with onshore flow along the southeast coast as high pressure persisted over the southeast states. This resulted in a cluster of heavy showers that moved from the Atlantic into northeast Palm Beach County.

54 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

FLORIDA, Southern FLZ168 Palm Beach 31 1350EST 1 0 0.00K 0.00K Rip Current A strong ridge of high pressure persisted over the southeast states resulting in an onshore wind along the southeast Florida coast and strong rip currents. M17IW

FLORIDA, West Central Hillsborough County 1 SSW Saffold 01 1530EST 1535EST 0 0 0.00K 0.00K Hail (1.00)

The social media page of a broadcast media station received several pictures of nickel to quarter sized hail near Sitka Street and Rome Avenue. Time was estimated from radar. Deep moisture and southeast winds allowed scattered sea breeze thunderstorms that moved west across much of west central and southwest Florida. Lee County 2 WNW Fort Myers Shores 19 1700EST 0 0 1.00K 0.00K Thunderstorm Wind (40EG)

General public reported one large tree was uprooted by thunderstorm wind gusts. Dime sized hail was also reported with the storm. An upper level disturbance crossing over Florida enhanced sea breeze storms across the area. One of these storms produced small hail and thunderstorm wind gusts that knocked over one tree. Note: The estimated wind gust of 40 knots is equivalent to 46 mph. Pasco County 2 N Wesley Chapel 20 1433EST 0 0 0.00K 0.00K Hail (0.88)

A trained spotter reported nickel sized hail north of Wesley Chapel.

Pasco County Wesley Chapel 20 1455EST 0 0 0.00K 0.00K Hail (1.00)

Broadcast media Twitter page had a report of quarter sized hail in Wesley Chapel.

Hillsborough County 1 SSE Seffner 20 1500EST 0 0 5.00K 0.00K Thunderstorm Wind (45EG)

The fire department reported a large tree was knocked down onto a house near Tighe Avenue and Lennar Avenue in Seffner. The damage was widely reported by the media. Note: The estimated wind gust of 45 knots is equivalent to 52 mph. Pasco County 4 WNW Crystal Spgs 20 1500EST 0 0 0.00K Thunderstorm Wind (50EG)

A trained spotter reported a large tree fell on a house near Zephyrhills. Time was estimated by radar.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Sarasota County North Port 20 1525EST 0 0 0.00K 0.00K Hail (1.75)

There were numerous reports on social media of quarter sized hail and one picture of golf ball sized hail in North Port.

Polk County 2 SSW Fort Meade 20 1651EST 0 0 0.00K Thunderstorm Wind (50EG)

County emergency management reported multiple power lines and power poles down near Fort Meade.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. De Soto County Arcadia 20 1740EST 0 0 0.00K Thunderstorm Wind (55EG)

55 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

FLORIDA, West Central

The 911 Call Center reported three trees and a large flagpole down in Arcadia. One tree was at SE Pointer Avenue south of Arcadia Municipal Airport, another tree was on SW Baldwin Street, and the third tree was on Parkview Road. The flagpole was knocked down on the corner of Polk Avenue and Magnolia Street.

An upper level trough crossing Florida interacted with an already moist atmosphere to enhance sea breeze thunderstorms throughout the afternoon. Some of these storms produced hail up to golf ball sized, and damaging wind gusts. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Pinellas County 1 NE Belleair Shores 28 1745EST 1 0 0.00K 0.00K Lightning

Pinellas County emergency management and print and broadcast media reported a 51 year old woman was struck and killed while walking on Belleair Beach. Print media reported she was walking on the beach with a friend. When storms started to roll in, the two friends got separated. After the storms cleared, the friend found the woman's body on the beach. The death was called into the Sheriff's Department at 6:47 PM EDT, so an estimated time of 6:45 PM EDT was used. F51OU

Deep moisture and southeast winds fueled scattered afternoon thunderstorms over central and southwest Florida that moved northwest towards the coast. Lightning from one of the storms struck and killed a woman walking on Belleair Beach. F51OU

GEORGIA, East Central Mcduffie County Thomson 21 1720EST 1724EST 0 0 0.00K 0.00K Hail (1.00)

Sheriff reported nickel to quarter size hail in the Thomson area.

A couple of isolated severe thunderstorms produced some large hail.

GEORGIA, Lower Camden County 2 SSE St Marys 02 1630EST 0 0 Heavy Rain

A spotter measured 5 inches of rainfall since midnight. Camden County 1 W Kingsland 03 0517EST 0 0 Heavy Rain

The emergency manager reported 4.25 inches of rainfall occurred near Kingsland.

Strong onshore flow and high low level moisture created bands of heavy rainfall that impacted Camden County.

Brantley County 1 E Hortense 19 1800EST 1830EST 0 0 15.00K Thunderstorm Wind (50EG)

Buildings were damaged by thunderstorm winds. One mobile home was damaged due to the roof being blown off at 1394 Hortense Road. Two barns were destroyed by thunderstorm winds. One barn was located at 235 Horsestomp Road. The other barn was located at 2078 Old Highway 32. At 11766 Raybon Road West a tree was blown over and landed on a carport with the car still underneath. At 1597 Highway 32 West, trees uprooted and caused damage to pool concrete. A wooden fence, wire fence, and gate were also damaged. The time of wind damage was estimated and based on radar imagery. The cost of damage was estimated...and is likely an underestimate. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Brantley County 2 W Raybon 19 1816EST 0 0 Thunderstorm Wind (50EG)

A large tree was blown down onto a home and car. A tree was also blown down over the road near Raybon Road and West and Oak Grove. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

56 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GEORGIA, Lower Charlton County 7 WNW Stokesville 19 2045EST 0 0 Thunderstorm Wind (50EG)

Trees were blown down on the road near the intersection of County Roads 125 and 127. The time of the damage was based on radar. Scattered severe storms developed over NE Florida during the late afternoon over an unstable and moist airmass where the sea breezes and outflows converged. During the evening, and upper level disturbance over SE Georgia fueled severe storms where outflows converged. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Camden County 2 ENE Kingsland 20 1516EST 0 0 Hail (0.75)

Pea to penny size hail was reported. A short wave mid level trough was lingering over the southeast region. A piece of energy traveled over the area during peak heating and this instability and forcing combined with adequate mean layer moisture and forcing from the sea breezes spawned scattered afternoon and evening severe storms.

Coffee County 1 N Douglas 21 1815EST 0 0 Thunderstorm Wind (50EG)

Trees and power lines were blown down in Douglas. The time of damage was based on radar.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Atkinson County 1 N Willacoochee 21 1845EST 0 0 Thunderstorm Wind (50EG)

Trees were blown down in Willacoochee. The time of damage was based on radar.

A upper level cold pool aloft enhanced diurnal instability over a moist airmass. These ingredient fueled a couple of severe storms that initiated along the sea breezes and outflows during the afternoon and evening. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. GEORGIA, North and Central

GAZ001 Dade 04 1000EST 0 0 2.5K 0.00K Strong Wind

GAZ074 Washington 05 0812EST 0 0 2.5K 0.00K Strong Wind A large cut-off low was located over southwest Missouri and northwest Arkansas, with an associated surface front approaching the Southeast during the afternoon hours of the 4th. Ahead of the front, easterly winds increased with most gusts to between 25 -30 MPH, with some isolated stronger gusts. Though overall the winds remained below wind advisory criteria, with the saturated soils in place these strong winds were able to bring down a few trees.

Gwinnett County 1 ESE Buford 19 0340EST 0 0 3.50K 0.00K Thunderstorm Wind (50EG)

The Gwinnett Times reported that a large tree was blown down, which broke five to six power poles.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Dawson County 4 NNE Lumpkin 19 0400EST 0745EST 0 0 50.00K 0.00K Flash Flood

The USGS stream gage on the Etowah River reached flood stage of 13 feet. The river crest at 15.9 feet. Moderate flooding occurred with several road closures. Etowah River Road was completely washed out where the dirt portion of it parallels the river. The road is expected to be closed for the next 2 weeks for repairs. A landslide occurred on a portion of Georgia Highway 53 near War Hill Park Road. Two feet of mud covered one lane with only one lane passable.

Gwinnett County 1 WSW Hog Mtn 19 0400EST 0405EST 0 0 0.00K 0.00K Hail (0.88)

An amateur radio operator reported that nickel sized hail fell near Hog Mountain.

57 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GEORGIA, North and Central Gwinnett County 1 WSW Hog Mtn 19 0400EST 0 0 10.00K 0.00K Thunderstorm Wind (40EG)

An amateur radio operator reported that a tree fell on a house near Hog Mountain, causing damage to the back of the house.

Note: The estimated wind gust of 40 knots is equivalent to 46 mph. Gwinnett County 4 WNW Hog Mtn 19 0405EST 0 0 0.25K 0.00K Thunderstorm Wind (50EG)

The Gwinnett Times reported that a tree was down on Interstate 85 near Buford Drive.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Gwinnett County 1 NW Lawrenceville 19 0445EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

Local newspaper reported that several trees and power lines were blown down in the Lawrenceville area.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Forsyth County 2 ENE Big Creek 19 0450EST 4 ENE Cumming Mathis Arpt 0945EST 0 0 5.00K 0.00K Flash Flood

The USGS stream gage on Dick Creek at Old Atlanta Road near Johns Creek and Suwanee reached flood stage of 10 feet. The creek crest at 12.8 feet. Minor flooding occurred with a few road closures nearby.

Forsyth County 2 SSW Drew 19 0459EST 1 NW Mars Hill Crossroads 0945EST 0 0 5.00K 0.00K Flash Flood

The USGS stream gage on the Big Creek at Atlanta Highway near Cumming reached flood stage of 6 feet. The creek crest at 8.2 feet. Minor flooding occurred along the Big Creek Greenway.

Gwinnett County 4 NW Sugar Hill 19 0501EST 2 NNW Buford 0945EST 0 0 10.00K 0.00K Flash Flood

The USGS stream gage on Level Creek at Suwanee Dam Road near Sugar Hill and Suwanee reached flood stage of 9 feet. The creek crest at 13 feet. Moderate flooding occurred with the water level hitting the bridge and reaching the bottom of the USGS gage house. Also the USGS stream gage on Richland Creek at Suwanee Dam Road near Sugar Hill and Buford reached flood stage of 10 feet. The creek crest at 10.5 feet. Minor flooding occurred in the woodlands and residential yards along the creeks.

Walton County 1 N Loganville 19 0515EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

Local newspaper reported that several trees and power lines were reported down in the Loganville area.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Hall County 5 WSW Flowery Branch 19 0600EST 2 NW Oakwood 0900EST 0 0 1000.00K 0.00K Flash Flood

Trudy Drive was completely washed out by a drainage branch flowing into Lake Lanier. There was a 50 to 75 foot large gap in the road with at least a 10 foot drop off. Several other roads were closed and damaged by flood waters as drainage branches become rapidly flowing creeks and overwhelmed culverts. These roads included portions of Atlanta Highway, McEver Road, Stephens Road, Flowery Way, Spring Street and Cove Creek Road in the Flowery Branch area.

58 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GEORGIA, North and Central Gwinnett County 1 NW Carolina 19 0713EST 2 E Lawrenceville Arpt 1145EST 0 0 15.00K 0.00K Flash Flood

The USGS stream gage on Pew Creek at Patterson Road near Lawrenceville reached flood stage of 11 feet. The creek crest at 14.3 feet. Moderate flooding occurred and the water level hit the bridge for around one hour. The USGS stream gage on Suwanee Creek at Buford Highway near Suwanee reached flood stage of 8 feet. The creek crest at 11.8 feet. Moderate flooding occurred with several road closures nearby. The USGS stream gage on Sweetwater Creek at Club Drive near Liburn reached flood stage of 11 feet. The creek crest at 13.1 feet. Minor flooding occurred. Long lake overflowed and flooded parts of the Riverbrooke neighborhood near Duluth. Backyards were flooded and the water came close to the houses.

Fulton County 2 S Roswell 19 0800EST 2 N Newtown 1145EST 0 0 10.00K 0.00K Flash Flood

The USGS stream gage on the Big Creek at Kimball Bridge Road near Alpharetta reached flood stage of 7 feet. The creek crest at 10.3 feet. Minor flooding occurred. The USGS stream gage on the Chattahoochee River near Berkeley Lake and Norcross reached flood stage of 12 feet. The river crest at 12.4 feet. Minor flooding occurred. The Chattahoochee River rose out of its banks and flooded the paddocks and access road to the stables at the Huntcliff River Club near Sandy Springs. Emergency officials evacuated 20 horses from the stables.

Polk County 1 W Red Ore 19 1024EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

The Polk County 911 Center reported that several trees were down on power lines in the Rockmart and Aragon areas.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Polk County 1 ENE Rockmart 19 1030EST 1 WNW Posco 1430EST 0 0 2.00K 0.00K Flash Flood

The public reported several drainage branches and small creeks from Rockmart to near Taylorsville overflowed their banks. This affected low lying portions of a few roads which caused temporary road closures.

Paulding County Hiram 19 1030EST 0 0 4.00K 0.00K Thunderstorm Wind (65EG)

The public reported that at least 15 large trees were uprooted or snapped along Quail Ridge Road.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Chattooga County 1 W Duck Creek 19 1034EST 1 ENE Beatum 1330EST 0 0 150.00K 0.00K Flash Flood

Significant flooding occurred northwest through northeast of Trion on Chattooga Creek, Cane Creek, Chappel Creek and Spring Branch which caused minor flooding downstream on the Chattooga River in Summerville. The emergency manager reported up to 20 roads were closed in this area due to overflowing creeks. Six mobile homes were flooded and abandoned. First responders had difficulty in reaching 15 people in the mobile homes for evacuation near U.S. Highway 27 at the intersection of West and East Halls Valley Roads. Some major erosion occurred on portions of the roads.

Carroll County 3 ENE Temple 19 1040EST 0 0 0.50K 0.00K Thunderstorm Wind (40EG)

The Carroll County Emergency Manager reported a couple of trees down. Pea sized hail was also reported.

Note: The estimated wind gust of 40 knots is equivalent to 46 mph. Cobb County 2 WNW Powder Spgs 19 1040EST 0 0 0.50K 0.00K Thunderstorm Wind (40EG)

A trained spotter reported that a power line was blown down on MacLand Road near Hiram.

Note: The estimated wind gust of 40 knots is equivalent to 46 mph.

59 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GEORGIA, North and Central Walker County 1 SSW High Pt 19 1100EST 1 SSW Chickamauga 1415EST 0 0 10.00K 0.00K Flash Flood

The public reported several small creeks came out of their banks and briefly flooded portions of nearby roads in the Cooper Heights area. Douglas County 1 N Douglasville 19 1100EST 2 NNE Chapel Hill 1105EST 0 0 100.00K 0.00K Thunderstorm Wind (60EG)

The Douglas County Emergency Manager and 911 Center reported numerous trees down across the county. Several fell on power lines and homes, including on Pilgrims Drive, Windmark Place, David Drive, Greenbrook Drive, McKown Road, Hidden Branch Road, Bomar Road, and South Burnt Hickory Road. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Coweta County 1 WSW Madras 19 1105EST 1110EST 0 0 0.00K 0.00K Hail (1.00)

The Coweta County 911 Center relayed a report of quarter size hail along North Highway 29 near Greentop Road.

Carroll County 1 NE Whitesburg 19 1105EST 0 0 0.50K 0.00K Thunderstorm Wind (40EG)

The Carroll County Emergency Manager reported that a couple of trees were blown down in Whitesburg.

Note: The estimated wind gust of 40 knots is equivalent to 46 mph. Pickens County 2 E Nelson 19 1107EST 0 0 60.00K 0.00K Lightning

The Pickens County Emergency Manager reported that a house was partially burned down due to lightning.

Floyd County 1 ENE Garden Lakes 19 1125EST 2 ENE Forrestville 1545EST 0 0 15.00K 0.00K Flash Flood

The emergency manager reported numerous drainage branches and small creeks in the Rome area overflowed their banks. This affected low lying portions of 15 roads which caused temporary road closures.

Coweta County Senoia 19 1130EST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)

The Coweta County 911 Center reported that several trees and power lines were blown down in the Senoia area.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Fulton County Fairburn 19 1130EST 3 ESE Union City 1135EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)

Local newspaper reported that several trees were blown down between Highways 138 and 92 east of Fairburn toward Jonesboro Road. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Bartow County 2 WNW Adairsville 19 1140EST 3 W Folsom 1430EST 0 0 6.00K 0.00K Flash Flood

The public reported several roads in the Adairsville area with high water overflowing them from nearby drainage branches. This included Clear Deck Road, Mathews Road and East Pleasant Valley Road around 5 to 6 miles east to southeast of Adairsville.

60 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GEORGIA, North and Central Fayette County 1 W Peachtree City 19 1145EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

The Fayette County Emergency Manager reported several trees down, some on power lines, lying across the road at Ellison and Tyrone. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Meriwether County 1 N Gay 19 1155EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)

The Meriwether County 911 Center reported that several trees were blown down in eastern Meriwether County, specifically along Gay Road near Murray Road and along Highway 100 near mile marker 10.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Douglas County 3 WNW Lithia Spgs 19 1215EST 1645EST 0 0 15.00K 0.00K Flash Flood

The emergency manager reported a small creek overflowed a portion of McKown Road around 4 miles east to northeast of Douglasville. The culvert pipe was washed out with significant erosion damage to the road.

Meriwether County 1 E Greenville 19 1226EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)

The Meriwether County 911 Center reported that several trees were blown down in the Greenville area.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Upson County Silvertown 19 1244EST 0 0 10.00K 0.00K Lightning

The Upson County 911 Center reported that lightning struck a house on the north side of Thomaston. The house caught fire but the fire was quickly extinguished. Upson County Silvertown 19 1244EST 1 SE Blacksboro 1250EST 0 0 4.00K 0.00K Thunderstorm Wind (55EG)

The Upson County 911 Center reported several trees and power lines down across roads on the north side of Thomaston. A few other trees were reported down in the eastern part of the county.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Whitfield County 2 E Rocky Face 19 1259EST 2 SSW Gordon Spgs 1700EST 0 0 2.00K 0.00K Flash Flood

The emergency manager reported Mill Creek had overflowed low lying portions of Willowdale Road near Chattanooga Road. The road was temporarily closed. Upson County 1 SW Yatesville 19 1306EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)

The Upson County 911 Center reported that several trees were blown down in the Yatesville area of eastern Upson County.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Taylor County 1 SE Butler Muni Arpt 19 1320EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)

Broadcast media reported that several trees were blown down in Butler.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

61 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GEORGIA, North and Central Macon County Montezuma 19 1422EST 0 0 1.50K 0.00K Thunderstorm Wind (40EG)

Amateur radio operators reported that a few trees were blown down in Montezuma. One fell on power lines along north Dooly Street, another was on Old Perry Road, and another on Highway 127 on Marvis Chapman Road.

Note: The estimated wind gust of 40 knots is equivalent to 46 mph. Bartow County 2 WNW Adairsville 19 1458EST 3 W Folsom 1730EST 0 0 6.00K 0.00K Flash Flood

The public reported several roads in the Adairsville area with high water overflowing them from nearby drainage branches. This included Clear Deck Road, Mathews Road and East Pleasant Valley Road around 5 to 6 miles east to southeast of Adairsville.

Crisp County 1 SSE Listonia Station 19 1500EST 3 ENE Bedgood 1505EST 0 0 2.50K 0.00K Thunderstorm Wind (55EG)

The Crisp County Emergency Manager reported around 10 trees down across the east and southeast portions of the county, mainly east of Interstate 75. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Dade County 2 NNW Cole City 19 1524EST 1 ENE Wildwood 2015EST 0 0 10.00K 0.00K Flash Flood

The emergency manager reported several drainage branches and small creeks overflowed their banks and flooded low lying portions of several roads from Cole City to Wildwood and Morganville. A family was stranded in their home near Cole City by surrounding flood waters. First responders had a difficult time reaching them to evacuate to higher ground.

Dade County 1 N Wildwood 19 1635EST 2015EST 0 0 10.00K 0.00K Flash Flood

The USGS stream gage on Lookout Creek at Creek Road near New England and Trenton reached flood stage of 12 feet. The creek crest at 16.7 feet. Significant flooding occurred near the moderate flood stage of 17 feet with several road closures.

An upper low was located over southern Kentucky on the morning of the 19th, with a shortwave trough extending into northern Georgia. Tropical moisture prevailed over Georgia as well. Widespread showers with embedded thunderstorms developed across a portion of north Georgia early in the morning and moved slowly south. Rainfall amounts of 3 to 7 inches occurred in less than 6 hours prior to 700 AM EST in an area from Dawsonville to Gainesville to Lawrenceville to Roswell. Significant flash flooding occurred with major damage to roads and bridges near Flowery Branch. Another 3 to 7 inches of rain occurred in 6 hours after 700 AM EST in a portion of northwest Georgia from Trenton to LaFayette to Calhoun and Cartersville to Rome and Summerville. Both heavy rain events caused widespread flash flooding and minor river flooding. As the instability increased during the day, the thunderstorms became more intense. Many of the thunderstorms were able to reach severe levels during the afternoon hours, causing primarily wind damage, with only isolated reports of large hail.

Jefferson County 1 NW Wrens 21 1650EST 1655EST 0 0 0.00K 0.00K Hail (0.88)

The public reported nickel sized hail in Wrens. Washington County 1 W Sandersville 21 1707EST 1712EST 0 0 0.00K 0.00K Hail (0.75)

The public reported penny sized hail in Sandersville. Butts County 1 S Jackson 21 2030EST 2035EST 0 0 0.00K 0.00K Hail (1.00)

The public reported quarter sized hail in Jackson.

62 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GEORGIA, North and Central

An upper ridge was in place over the Southeast on the 21s, with an upper low over southeast Georgia and northeast Florida. A very unstable airmass remained in place, and afternoon showers and thunderstorms developed across the state. A couple were strong, and one was able to reach severe levels with large hail.

Greene County 2 S Grantville 22 1855EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported several trees down on Highway 278 east of Greensboro.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Bibb County 1 E Bloomfield 22 2110EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)

The Bibb County 911 Center reported trees down along High Street.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Pulaski County Hawkinsville 22 2300EST 0 0 0.25K 0.00K Thunderstorm Wind (40EG)

Broadcast media relayed a report of a downed tree on Mock Springs Road.

An upper trough moved through the Mississippi Valley during the day and into the evening on the 22nd. A shortwave moved across the Southeast, helping to focus shower and thunderstorm development. Scattered to numerous thunderstorms developed, and a couple of these were able to reach severe levels, bringing down trees. Note: The estimated wind gust of 40 knots is equivalent to 46 mph. GAZ006 Fannin 27 2100EST 2330EST 0 0 0.25K 0.00K Wildfire

An upper high was in place over the Lower Mississippi Valley on the 27th, with embedded shortwaves riding down the northwest flow aloft. Temperatures increased during the day into the upper 80s...with isolated to scattered thunderstorms developing across north Georgia. Relative humidity values were well above critical levels.

GEORGIA, Northeast Rabun County Clayton 20 1603EST 0 0 Hail (0.88)

Nickel size hail was reported in Clayton. Rabun County 2 W Clayton 20 1609EST 0 0 Hail (1.00)

Quarter size hail was reported on Camp Dixie Lane. A few thunderstorms developed over the northeast Georgia mountains during the afternoon hours. One of the storms produced large hail. Franklin County 2 SSW Lavonia Muni Arpt 22 1645EST 0 0 Thunderstorm Wind (50EG)

Multiple large tree limbs were blown down. Thunderstorms caused a little wind damage over northeast Georgia. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Rabun County 1 SW Clayton 22 1920EST 0 0 Thunderstorm Wind (50EG)

A tree was blown down on Marsengill St a little south of Clayton and large tree limbs were blown down in the Tiger area.

Isolated thunderstorms developed over the mountains of northeast Georgia during the late afternoon hours. One of the storms caused a little wind damage. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

63 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GEORGIA, Northeast Franklin County 5 WNW Red Hill 22 2004EST 0 0 Thunderstorm Wind (50EG)

Multiple trees were blown down off highway 320 near the Stephens County line.

Thunderstorms caused a little wind damage over northeast Georgia. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. GEORGIA, Southeast

GAZ119 Coastal Chatham 03 0900EST 0901EST 0 0 2.5K 0.00K Strong Wind

With strong high pressure positioned to the northeast, a wedge of high pressure was in place east of the Appalachians. A tight northeast pressure gradient was present along the Georgia coast which produced gusty winds, knocking down a few trees.

Screven County 1 W Sylvania 18 1352EST 1353EST 0 0 2.50K 0.00K Lightning

The Screven County communications center reported that lightning struck a tree which then fell on a car in downtown Sylvania. Effingham County 1 NW Guyton 18 1550EST 1551EST 0 0 0.00K 0.00K Hail (0.88)

A trained spotter reported ten minutes of dime to nickel size hail in Guyton.

Scattered thunderstorms developed across portions of southeast Georgia under the influence of weak high pressure and significant surface heating. Long County 4 NE Donald 19 1505EST 1506EST 0 0 0.00K 0.00K Hail (1.00)

A trained spotter reports hail up to the size of quarters on Flowers Road near highway 196.

Long County 2 NNW Bayview 19 1558EST 1559EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)

Long County Emergency Management reported a tree down near Highway 84 and Hendrix Street.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Long County 1 WNW Bayview 19 1601EST 1602EST 0 0 0.00K 0.00K Hail (0.88)

Ludowici Police Department reported nickel size hail in downtown Ludowici.

Bryan County 27 WSW Daniel 19 1601EST 1602EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)

Long County Emergency Management reported a tree down along Long Street.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

64 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GEORGIA, Southeast Long County 1 WNW Bayview 19 1601EST 1602EST 0 0 7.50K 0.00K Thunderstorm Wind (50EG)

The Ludowici Police Department reported numerous trees and powerlines down in downtown Ludowici.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Long County 1 WNW Bayview 19 1603EST 1604EST 0 0 0.00K 0.00K Hail (0.88)

A trained spotter reports nickel size hail on Robertson Road.

Long County 1 WNW Bayview 19 1603EST 1604EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported several two inch diamter tree limbs snapped off by thunderstorm winds on Robertson Street.

Scattered diurnal thunderstorms developed in the afternoon hours under the influence of weak high pressure across the region. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Screven County 1 N Hunter 20 1830EST 1831EST 0 0 0.80K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported numberous tree limbs down, up to three inches in diameter.

Scattered diurnal showers and thunderstorms developed in the afternoon hours under the influence of weak high pressure. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

GEORGIA, Southwest Ben Hill County Fitzgerald 19 1550EST 0 0 0.50K 0.00K Thunderstorm Wind (45EG)

The 911 Call Center reported a small tree or two was blown down but that winds did not appear to be severe.

Note: The estimated wind gust of 45 knots is equivalent to 52 mph. Berrien County 4 S Alapaha 21 1906EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

At least three trees were blown down south of Alapaha. Some isolated thunderstorms resulted in a few trees being blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. HAWAII

HIZ013-018>019- Big Island Interior - Kohala - Kona - Lanai Makai - Leeward Haleakala - Maui Central Valley - Maui 021-023-026>027 Leeward West - Molokai Leeward 01 0000HST 31 2359HST 0 0 0.00K 0.00K Drought

Rainfall in May helped the overall drought situation in the Aloha State. However, a few areas remain in the D2 category of severe drought, or worse. Officials lessened water restrictions in some areas as conditions improved, but kept them in place in others. Hawaii County 1 N Hawi 03 2216HST 3 WSW Waikoloa Village 04 0403HST 0 0 0.00K 0.00K Heavy Rain

65 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

HAWAII Hawaii County 1 ENE Mahukona 04 2026HST 3 WNW Saddle Road Junction 05 0201HST 0 0 0.00K 0.00K Heavy Rain

Heavy rain produced small stream and drainage ditch flooding, and ponding on roadways near Hawi, Waikoloa Village, Mahukona, and Kawaihae on the Big Island of Hawaii. There were no reports of serious property damage or injuries.

Maui County 1 ESE Kaumalapau Harbor 05 1442HST 1 ESE Shipwreck Beach 2040HST 0 0 0.00K 0.00K Heavy Rain

Maui County 2 SSE Maunaloa 05 1447HST 3 WSW Halawa Valley 1649HST 0 0 0.00K 0.00K Heavy Rain

Wind convergence ahead of a weak cold front generated heavy rain over parts of Lanai and Molokai. No significant injuries or property damage were reported. Maui County 2 SE Honokohau 11 0644HST 2 NW Puuiki 1226HST 0 0 0.00K 0.00K Heavy Rain

Maui County 2 SE Honokohau 11 1740HST 2 NW Puuiki 2025HST 0 0 0.00K 0.00K Heavy Rain

Honolulu County 2 ESE Waikane 12 1425HST 1528HST 0 0 0.00K 0.00K Flash Flood

Waikane Stream overflowed its banks and inundated nearby Kamehameha Highway.

Honolulu County 1 NW Kahuku 13 0256HST 2 ESE Waikane 0550HST 0 0 0.00K 0.00K Heavy Rain

Remnant moisture from a dissipated front fueled heavy showers over parts of Maui and Oahu. Some of the showers were intense enough to produce flash flooding in a windward section of Oahu near Waikane. There were no serious injuries or property damage.

HIZ001>003-005> Big Island North and East - Kahoolawe - Kauai Leeward - Kauai Windward - Kona - Lanai Makai - 006-012>014-016- Leeward Haleakala - Maui Central Valley - Maui Leeward West - Molokai Leeward - Molokai Windward 018>019-021-023> - Niihau - Oahu South Shore - South Big Island - Waianae Coast 025 16 1600HST 22 1400HST 0 0 0.00K 0.00K High Surf

A series of swells from the southern hemisphere generated surf of 6 to 10 feet along the south shores of all islands. Lifeguards were busy throughout the high surf episode. They provided many rescues, and warnings to inexperienced swimmers and surfers. On Maui, with the high surf, three sailing vessels broke free from their moorings and washed aground near Mala Wharf in Lahaina. The cost of damages was not available. There were no reports of serious injuries.

Hawaii County 2 NNE Pahala 17 1500HST 3 SW Naalehu 1758HST 0 0 0.00K 0.00K Heavy Rain

Hawaii County 1 WNW Hawi 18 0111HST 3 E Puako 0343HST 0 0 0.00K 0.00K Heavy Rain

66 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

HAWAII Honolulu County 1 ENE Moilili 18 1349HST Makaha Valley 1538HST 0 0 0.00K 0.00K Heavy Rain

Hawaii County 1 NNW Hawi 18 1501HST 3 E Holualoa 2347HST 0 0 0.00K 0.00K Heavy Rain

Honolulu County 2 SSE Kahuku 19 1657HST Waimanalo Beach 1930HST 0 0 0.00K 0.00K Heavy Rain

Hawaii County 2 WSW Hawi 20 0523HST 3 ENE Puako 0659HST 0 0 0.00K 0.00K Heavy Rain

Upper troughing ahead of a cold front led to heavy rain over parts of the Big Island of Hawaii and Oahu. The precipitation caused small stream and drainage ditch flooding, and ponding on roadways. No serious injuries or property damage were reported.

HIZ028 Big Island Summit 21 1539HST 2339HST 0 0 0.00K 0.00K High Wind

West wind gusts exceeded 70 mph over the Big Island summits. No serious injuries or property damage were reported.

Maui County 1 ESE Keokea 22 2026HST 3 S Makena 2234HST 0 0 0.00K 0.00K Heavy Rain

Heavy rain, from lingering convective cloudiness after daytime heating, fell over southwest parts of East Maui. The rain produced ponding on roadways, and small stream and drainage ditch flooding. No significant property damage or injuries were reported.

HIZ028 Big Island Summit 23 0449HST 0609HST 0 0 0.00K 0.00K High Wind

West wind gusts exceeded 70 mph over the Big Island summits. No serious injuries or property damage were reported.

Hawaii County 1 N Hawi 23 2342HST 2 WNW Waikoloa Village 24 0117HST 0 0 0.00K 0.00K Heavy Rain

Heavy rain fell over northwest parts of the Big Island of Hawaii. The showers caused small stream and drainage ditch flooding, and ponding on roadways. There were no reports of serious injuries or property damage.

Honolulu County 4 SW Kahuku 28 0425HST 2 NNE Waialae Iki 29 0455HST 0 0 0.00K 0.00K Heavy Rain

Maui County 1 SSW Wailua 28 0508HST 1 NNE Kipahulu 1049HST 0 0 0.00K 0.00K Heavy Rain

Hawaii County 3 NNW Kamuela 28 1316HST 3 E Waikii 1611HST 0 0 0.00K 0.00K Heavy Rain

67 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

HAWAII Maui County 3 NW Pukalani 28 1358HST 1 NNW Koali 1655HST 0 0 0.00K 0.00K Heavy Rain

Kauai County 5 E Na Pali Coast Sp 28 1531HST 1 SE Waimea Kauai 1822HST 0 0 0.00K 0.00K Heavy Rain

Hawaii County 3 SW Pepeekeo 28 1642HST 5 WSW Naalehu 29 0034HST 0 0 0.00K 0.00K Heavy Rain

Honolulu County 3 SW Mokuleia 29 1208HST Maunalani Heights 1943HST 0 0 0.00K 0.00K Heavy Rain

A surface trough and upper low combined to bring heavy rain to the islands at the end of May. The showers primarily caused ponding on roadways, and small stream and drainage ditch flooding. On the 28th on Oahu, however, the rainfall was intense enough to overflow the banks of the Kalihi Stream on private property due to clogged culverts. This overflow did not affect public areas, though. Also, four teenagers were caught in the swollen stream for a time before they were able to make their way out of danger. By the end of the episode, fortunately, no serious injuries or property damage were reported.

HIZ013-018>019- Big Island Interior - Kohala - Kona - Lanai Makai - Leeward Haleakala - Maui Central Valley - Maui 021-023-026>027 Leeward West - Molokai Leeward 01 0000HST 31 2359HST 0 0 0.00K 0.00K Drought

Rainfall in May helped the overall drought situation in the Aloha State. However, a few areas remain in the D2 category of severe drought, or worse. Officials lessened water restrictions in some areas as conditions improved, but kept them in place in others. Hawaii County 1 N Hawi 03 2216HST 3 WSW Waikoloa Village 04 0403HST 0 0 0.00K 0.00K Heavy Rain

Hawaii County 1 ENE Mahukona 04 2026HST 3 WNW Saddle Road Junction 05 0201HST 0 0 0.00K 0.00K Heavy Rain

Heavy rain produced small stream and drainage ditch flooding, and ponding on roadways near Hawi, Waikoloa Village, Mahukona, and Kawaihae on the Big Island of Hawaii. There were no reports of serious property damage or injuries.

Maui County 1 ESE Kaumalapau Harbor 05 1442HST 1 ESE Shipwreck Beach 2040HST 0 0 0.00K 0.00K Heavy Rain

Maui County 2 SSE Maunaloa 05 1447HST 3 WSW Halawa Valley 1649HST 0 0 0.00K 0.00K Heavy Rain

Wind convergence ahead of a weak cold front generated heavy rain over parts of Lanai and Molokai. No significant injuries or property damage were reported. Maui County 2 SE Honokohau 11 0644HST 2 NW Puuiki 1226HST 0 0 0.00K 0.00K Heavy Rain

68 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

HAWAII Maui County 2 SE Honokohau 11 1740HST 2 NW Puuiki 2025HST 0 0 0.00K 0.00K Heavy Rain

Honolulu County 2 ESE Waikane 12 1425HST 1528HST 0 0 0.00K 0.00K Flash Flood

Waikane Stream overflowed its banks and inundated nearby Kamehameha Highway.

Honolulu County 1 NW Kahuku 13 0256HST 2 ESE Waikane 0550HST 0 0 0.00K 0.00K Heavy Rain

Remnant moisture from a dissipated front fueled heavy showers over parts of Maui and Oahu. Some of the showers were intense enough to produce flash flooding in a windward section of Oahu near Waikane. There were no serious injuries or property damage.

HIZ001>003-005> Big Island North and East - Kahoolawe - Kauai Leeward - Kauai Windward - Kona - Lanai Makai - 006-012>014-016- Leeward Haleakala - Maui Central Valley - Maui Leeward West - Molokai Leeward - Molokai Windward 018>019-021-023> - Niihau - Oahu South Shore - South Big Island - Waianae Coast 025 16 1600HST 22 1400HST 0 0 0.00K 0.00K High Surf

A series of swells from the southern hemisphere generated surf of 6 to 10 feet along the south shores of all islands. Lifeguards were busy throughout the high surf episode. They provided many rescues, and warnings to inexperienced swimmers and surfers. On Maui, with the high surf, three sailing vessels broke free from their moorings and washed aground near Mala Wharf in Lahaina. The cost of damages was not available. There were no reports of serious injuries.

Hawaii County 2 NNE Pahala 17 1500HST 3 SW Naalehu 1758HST 0 0 0.00K 0.00K Heavy Rain

Hawaii County 1 WNW Hawi 18 0111HST 3 E Puako 0343HST 0 0 0.00K 0.00K Heavy Rain

Honolulu County 1 ENE Moilili 18 1349HST Makaha Valley 1538HST 0 0 0.00K 0.00K Heavy Rain

Hawaii County 1 NNW Hawi 18 1501HST 3 E Holualoa 2347HST 0 0 0.00K 0.00K Heavy Rain

Honolulu County 2 SSE Kahuku 19 1657HST Waimanalo Beach 1930HST 0 0 0.00K 0.00K Heavy Rain

Hawaii County 2 WSW Hawi 20 0523HST 3 ENE Puako 0659HST 0 0 0.00K 0.00K Heavy Rain

Upper troughing ahead of a cold front led to heavy rain over parts of the Big Island of Hawaii and Oahu. The precipitation caused small stream and drainage ditch flooding, and ponding on roadways. No serious injuries or property damage were reported.

HIZ028 Big Island Summit 21 1539HST 2339HST 0 0 0.00K 0.00K High Wind

69 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

HAWAII

West wind gusts exceeded 70 mph over the Big Island summits. No serious injuries or property damage were reported.

Maui County 1 ESE Keokea 22 2026HST 3 S Makena 2234HST 0 0 0.00K 0.00K Heavy Rain

Heavy rain, from lingering convective cloudiness after daytime heating, fell over southwest parts of East Maui. The rain produced ponding on roadways, and small stream and drainage ditch flooding. No significant property damage or injuries were reported.

HIZ028 Big Island Summit 23 0449HST 0609HST 0 0 0.00K 0.00K High Wind

West wind gusts exceeded 70 mph over the Big Island summits. No serious injuries or property damage were reported.

Hawaii County 1 N Hawi 23 2342HST 2 WNW Waikoloa Village 24 0117HST 0 0 0.00K 0.00K Heavy Rain

Heavy rain fell over northwest parts of the Big Island of Hawaii. The showers caused small stream and drainage ditch flooding, and ponding on roadways. There were no reports of serious injuries or property damage.

Honolulu County 4 SW Kahuku 28 0425HST 2 NNE Waialae Iki 29 0455HST 0 0 0.00K 0.00K Heavy Rain

Maui County 1 SSW Wailua 28 0508HST 1 NNE Kipahulu 1049HST 0 0 0.00K 0.00K Heavy Rain

Hawaii County 3 NNW Kamuela 28 1316HST 3 E Waikii 1611HST 0 0 0.00K 0.00K Heavy Rain

Maui County 3 NW Pukalani 28 1358HST 1 NNW Koali 1655HST 0 0 0.00K 0.00K Heavy Rain

Kauai County 5 E Na Pali Coast Sp 28 1531HST 1 SE Waimea Kauai 1822HST 0 0 0.00K 0.00K Heavy Rain

Hawaii County 3 SW Pepeekeo 28 1642HST 5 WSW Naalehu 29 0034HST 0 0 0.00K 0.00K Heavy Rain

Honolulu County 3 SW Mokuleia 29 1208HST Maunalani Heights 1943HST 0 0 0.00K 0.00K Heavy Rain

A surface trough and upper low combined to bring heavy rain to the islands at the end of May. The showers primarily caused ponding on roadways, and small stream and drainage ditch flooding. On the 28th on Oahu, however, the rainfall was intense enough to overflow the banks of the Kalihi Stream on private property due to clogged culverts. This overflow did not affect public areas, though. Also, four teenagers were caught in the swollen stream for a time before they were able to make their way out of danger. By the end of the episode, fortunately, no serious injuries or property damage were reported.

70 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IDAHO, Southeast Jefferson County 3 SE Monteview 07 1510MST 1520MST 1.17 5 0 0 0.00K 0.00K Tornado (EF0)

A weak tornado was confirmed with photographs and radar signatures just southeast of Monteview between 4:10 pm MDT to 4:20 MDT. The tornado was in open fields and no damage occurred.

A weak tornado was confirmed with photographs and radar signatures just southeast of Monteview between 4:10 pm MDT to 4:20 MDT. Fremont County 1 E Newdale 08 1215MST 1220MST 0 0 0.00K 0.00K Dust Devil

The Fremont County emergency manager took several well defined photographs of a dust devil east of Newdale at around 1:15 pm MDT. The Fremont County emergency manager took several well defined photographs of a dust devil east of Newdale at around 1:15 pm MDT.

IDAHO, Southwest Jerome County 8 NE Jerome 08 1620MST 1625MST 1 20 0 0 0.00K 0.00K Tornado (EF0)

A Jerome County deputy reported a brief tornado touchdown. No damage was reported.

A large area of low pressure situated over the Great Basin created favorable conditions for isolated severe convection across the region, including parts of southern Idaho.

IDZ011-013-033 Boise Mountains - Upper Weiser Valley - West Central Mountains

21 1355MST 1425MST 0 0 25.0K 0.00K Strong Wind

A strong cold front moving in from the northwest late in the afternoon on the 21st caused wind damage to parts of Southwest Idaho. Elmore County 10 WNW Mountain Home 26 1310MST 1315MST 3.92 50 0 0 0.00K 0.00K Tornado (EF0)

Two photographs submitted by the public on Facebook show an EF-0 tornado about 10 miles northwest of Mountain Home. No damage was reported. An upper low moving through the Intermountain West kicked off showers and isolated severe thunderstorms across parts of Southwest Idaho.

ILLINOIS, Central Cass County 8 NNE Beardstown 01 0000CST 22 1915CST 0 0 0.00K 0.00K Flood

High impact flooding on the Illinois River continued from April. Several structures southwest of Beardstown in rural parts of Cass County were damaged by record levels of flooding on the Illinois River. The flood wall in Beardstown, however, spared the city for significant damage. Agricultural land and several roads adjacent to the river were also damaged. High impact flooding subsided when the river level at Beardstown fell below a stage of 18 feet on May 22nd. Damage estimates for the buildings, agricultural land and roads were not available for this event.

Fulton County 1 E Banner 01 0000CST 19 1630CST 0 0 0.00K 0.00K Flood

High impact flooding on the Illinois River continued from April.

71 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Central

No homes were damaged by record levels of flooding on the Illinois River. However, thousands of acres of agricultural land and nature reserves were inundated by the flood waters. Several roads along the river were also damaged. High impact flooding subsided when the river level at Havana fell below a stage of 17 feet on May 19th.

Damage estimates for the roads and agricultural land were not available for this event.

Marshall County 2 NNE Henry 01 0000CST 09 0900CST 0 0 0.00K 0.00K Flood

Record flooding on the Illinois River continued from April into May. More than 30 homes and businesses along the Illinois River in Marshall County suffered flood damage due to record river levels. The high impact flooding dissipated on May 9th when the river level at Henry dropped below a stage of 24 feet. Damage information was reported in the April Storm Data for this episode.

Mason County Havana 01 0000CST Patterson Bay 19 1630CST 0 0 0.00K 0.00K Flood

High impact flooding on the Illinois River continued from April. Hundreds of cabins and sheds in wildlife areas along the Illinois River were severely damaged by the floodwaters. In addition, 25 homes and several other structures were damaged near Bath, Snicarte, Havana and Goofy Ridge. Nearly 15 miles of roads were destroyed due to the flooding. High impact flooding subsided when the river level at Havana fell below a stage of 17 feet on May 19th. Damage estimates were reported in the April Storm Data for this event.

Morgan County 3 NNW Meredosia 01 0000CST 14 1700CST 0 0 0.00K 0.00K Flood

High impact flooding on the Illinois River continued from April. A few structures in rural parts of extreme northwest Morgan County were damaged by near record levels of flooding on the Illinois River. The flood wall in Meredosia, however, spared the city from significant damage. Agricultural land and several roads adjacent to the river were also damaged. High impact flooding subsided when the river level at Meredosia fell below a stage of 22 feet on May 14th. Damage estimates for the buildings, agricultural land and roads were not available for this event.

Peoria County 4 NE North Chillicothe 01 0000CST 1 SSW Ranchville 08 0200CST 1 0 28.00M 0.00K Flood

High impact flooding on the Illinois River continued from April. Numerous homes along the Illinois River in Chillicothe, Rome, Mossville and Mapleton suffered flood damage due to record river levels. Several businesses were damaged, and numerous streets were flooded, along the Illinois River in downtown Peoria. A total of 505 homes and businesses were damaged by the flooding in Peoria County. Early in the morning on May 4th a man drowned when he drove his vehicle into the floodwaters northeast of downtown Peoria. High impact flooding subsided when the river level at Peoria fell below a stage of 22 feet on May 8th. M33VE

Schuyler County 1 NE Bluff City 01 0000CST 1 SE Browning 22 1915CST 0 0 0.00K 0.00K Flood

High impact flooding on the Illinois River continued from April. No homes were damaged by record levels of flooding on the Illinois River. However, thousands of acres of agricultural land and several roads adjacent to the river were damaged. High impact flooding subsided when the river level at Beardstown fell below a stage of 18 feet on May 22nd. Damage estimates were reported in the April Storm Data for this event.

72 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Central Scott County 3 N Naples 01 0000CST 13 1500CST 0 0 0.00K 0.00K Flood

High impact flooding on the Illinois River continued from April. A few structures in rural parts of western Scott County were damaged by near record levels of flooding on the Illinois River. Agricultural land and several roads adjacent to the river were also damaged. High impact flooding subsided when the river level at Valley City fell below a stage of 21 feet on May 13th. Damage estimates for the buildings, agricultural land and roads were not available for this event.

Tazewell County 1 NW East Peoria 01 0000CST Crescent 08 0200CST 0 0 21.70M 0.00K Flood

High impact flooding on the Illinois River continued from April. Several homes, businesses and roads along the Illinois River in Tazewell County suffered flood damage due to record river levels. A total of 374 structures were damaged by the flooding in Tazewell County. High impact flooding subsided when the river level at Peoria fell below a stage of 22 feet on May 8th.

Woodford County 7 NNE Spring Bay 01 0000CST 08 0200CST 0 0 0.00K 0.00K Flood

High impact flooding on the Illinois River continued from April. Around 276 homes, two businesses, a fire station and numerous roads along the Illinois River in Spring Bay and Bay View Gardens were inundated, and suffered flood damage dur to record river levels. High impact flooding subsided when the river level at Peoria fell below a stage of 22 feet on May 8th. Damage information was reported in the April Storm Data for this episode.

High impact flooding on the Illinois River continued from April into much of May. Excessive rainfall during the middle of April led to widespread flooding across a large part of northern and central Illinois and resulted in record flooding along the Illinois River in central Illinois. Another heavy rain event from May 2-4, 2013 prolonged the flooding into the middle of May for most of the Illinois River basin. The record flooding did significant damage to locations along and near the river banks. Every county along the Illinois River was declared a state and federal disaster area.

Moultrie County 1 SSE Fairbanks 02 1205CST 1210CST 0 0 24.00K 0.00K Thunderstorm Wind (52EG)

Four power poles were blown down along Illinois Route 133 about 3 miles west of Arthur. People were trapped in cars by the downed lines: however, no injuries were reported. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Coles County 4 WSW Fairgrange 02 1500CST 1830CST 0 0 0.00K 0.00K Flash Flood

A slow moving thunderstorm produced more than 2.00 inches of rain in one hour in a small part of central Coles County, between Mattoon and Charleston. The flash flooding was relatively short lived, but numerous rural roads were inundated and impassable.

Cumberland County 2 SW Johnstown 02 1645CST 3 SE Janesville 2100CST 0 0 0.00K 0.00K Flash Flood

A slow moving thunderstorm produced more than 3.00 inches of rain in 90 minutes in a small part of central Cumberland County, between Mattoon and Charleston. The flash flooding was relatively short lived, but numerous streets in Toledo, as well as rural roads, were inundated and impassable.

73 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Central

A cold front stretching from the Great Lakes to the Southern Plains served as the focusing mechanism for scattered showers and thunderstorms across central Illinois during the afternoon of May 2nd. One cell became severe across Moultrie County, producing wind damage west of Arthur, and two other slow moving thunderstorms resulted in flash flooding in Coles County and Cumberland County. Coles County 4 WSW Oakland 09 1325CST 1330CST 0 0 60.00K 0.00K Thunderstorm Wind (70EG)

A pole barn was damaged and shingles were torn off homes nearby.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Clay County 2 W Ingraham 09 1630CST 1631CST 0 0 100.00K 0.00K Lightning

Ten oil tank batteries were ignited by a lightning strike west of Ingraham.

Christian County 3 N Owaneco 09 1641CST 1642CST 0.55 20 0 0 0.00K 0.00K Tornado (EF0)

A tornado touched down in a field 2.4 miles north of Owaneco at 4:41 PM CST. The tornado traveled northward, then lifted 2.9 miles north of Owaneco at East 1200 North Road at 4:42 PM CST. No damage was reported.

Low pressure tracking out of the Plains was responsible for scattered thunderstorms across central Illinois during the afternoon and evening of May 9th. One storm produced wind damage to a few structures in rural Coles County, while another caused a lightning strike and ensuing fire in Clay County. Yet another cell produced a brief tornado in an open field in Christian County. Tazewell County Creve Coeur 20 1839CST 1844CST 0 0 4.00K 0.00K Thunderstorm Wind (52EG)

A tree was blown onto a fence. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Woodford County Roanoke 20 1845CST 1850CST 0 0 12.00K 0.00K Thunderstorm Wind (52EG)

A few small trees were blown down in Roanoke. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Peoria County 1 ESE Sherwood Forest 20 1850CST 1855CST 0 0 9.00K 0.00K Thunderstorm Wind (52EG)

An 18-inch diameter tree was blown down onto a house. In addition, several 8-inch diameter tree branches were broken off and landed on a roof. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cass County Arenzville 20 1935CST 1940CST 0 0 14.00K 0.00K Thunderstorm Wind (52EG)

Power lines were blown down in Arenzville. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Stark County Toulon 20 1935CST 1940CST 0 0 25.00K 0.00K Thunderstorm Wind (61EG)

Several trees and power lines were blown down in Toulon. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

74 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Central Cass County 3 E Bluff Spgs 20 1938CST 1943CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several tree branches were blown down 5 miles northwest of Virginia.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cass County Beardstown 20 1938CST 1943CST 0 0 6.00K 0.00K Thunderstorm Wind (52EG)

A power pole was blown down in Beardstown. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cass County Virginia 20 1940CST 1945CST 0 0 6.00K 0.00K Thunderstorm Wind (52EG)

A power pole was blown down in Virginia. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Stark County 2 WNW Wyoming 20 1945CST 1946CST 0 0 0.00K 0.00K Hail (0.75)

Stark County Wyoming 20 1945CST Bradford 1955CST 0 0 75.00K 0.00K Thunderstorm Wind (61EG)

Widespread wind damage occurred from the north side of Wyoming northeastward to Bradford. Numerous trees, tree branches, and power lines were blown down along this path. In addition, minor damage to a few sheds and outbuildings was reported. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Fulton County Canton 20 2005CST 2010CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A 12-inch diameter tree was blown down in Canton. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Fulton County Farmington 20 2010CST 2015CST 0 0 25.00K 0.00K Thunderstorm Wind (61EG)

Several large trees were uprooted and a few power lines were knocked down.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Stark County Toulon 20 2015CST 2020CST 0 0 15.00K 0.00K Thunderstorm Wind (61EG)

A grain bin was blown down in Toulon. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Peoria County 3 N Elmwood 20 2020CST 2025CST 0 0 12.00K 0.00K Thunderstorm Wind (52EG)

Several large tree limbs were blown onto power lines at Illinois Route 78 and Schissler Road.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

75 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Central Peoria County 1 E Laura 20 2022CST 2027CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)

Two large trees were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Peoria County 4 NNW Brimfield 20 2025CST 2030CST 0 0 4.00K 0.00K Thunderstorm Wind (52EG)

A large tree limb was blown down onto power lines northwest of Brimfield. Strong winds also damaged a garage door.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Peoria County 1 N Brimfield 20 2025CST 2030CST 0 0 6.00K 0.00K Thunderstorm Wind (52EG)

The top half of a large tree was blown down onto power lines.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Peoria County 1 ESE Oak Hill 20 2025CST 2030CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A large tree was blown down across Route 8 at Texas Road. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Peoria County 3 E Elmore 20 2025CST 2030CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)

Two large trees were blown down across Illinois Route 78 north of Laura.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Stark County Bradford 20 2035CST 2040CST 0 0 12.00K 0.00K Thunderstorm Wind (52EG)

A shed was blown over in Bradford. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Stark County 1 E Bradford 20 2040CST 2045CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A grain bin was blown down. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Moultrie County 3 SE Sullivan 20 2222CST 2227CST 0 0 45.00K 0.00K Thunderstorm Wind (70EG)

A roof was torn off a house and siding and shingle damage occurred to another house.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Moultrie County Sullivan 20 2225CST 2230CST 0 0 40.00K 0.00K Thunderstorm Wind (61EG)

Farm equipment and a truck were blown over in Sullivan. Several trees and power lines were knocked down as well.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

76 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Central Shelby County 2 ENE Windsor 20 2225CST 2230CST 0 0 50.00K 0.00K Thunderstorm Wind (61EG)

Four power poles and a 14-inch diameter tree were snapped off. In addition, grain bins were destroyed and a machine shed had its roof torn off. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Coles County Mattoon 20 2240CST 2245CST 0 0 125.00K 0.00K Thunderstorm Wind (61EG)

Numerous trees, tree branches, and power poles were blown down throughout Mattoon.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Cumberland County 3 S Greenup 20 2301CST 2306CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A large walnut tree was blown down. A vigorous upper-level disturbance interacting with a cold front triggered strong to severe thunderstorms west of the Mississippi River during the afternoon of May 20th. These storms tracked eastward into central Illinois during the evening, producing wind damage and locally heavy rainfall in excess of 2 inches. The most concentrated area of wind damage occurred across parts of Stark County, where numerous trees and power lines were blown down from the north side of Wyoming to Bradford. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Shelby County 1 SE Shelbyville 26 1450CST 1451CST 1 0 0.00K 0.00K Lightning

A 29 year-old fisherman was struck by lightning on the Kaskaskia River near the Lake Shelbyville Dam at around 3:50 PM CDT on Sunday, May 26th. The man later died at Shelby Memorial Hospital in Shelbyville. M29OU

Scattered thunderstorms developed across central Illinois during the afternoon of May 26th. Lightning from one of the storms struck a fisherman on the Kaskaskia River near the Lake Shelbyville Dam. The man was later pronounced dead at the Shelby Memorial Hospital in Shelbyville. M29OU

Knox County 4 WNW Altona 26 1930CST 6 NNE Centerville 27 0325CST 0 0 0.00K 0.00K Flash Flood

Several rounds of thunderstorms with torrential rainfall produced 4.00 to 6.00 inches of rain in northeast Knox County late in the evening of May 26th. This resulted in numerous reports of flooded rural roads in and near Altona and Victoria.

Stark County 2 NNW La Fayette 26 2000CST 3 SW Elmira 27 0400CST 0 0 0.00K 0.00K Flash Flood

Several rounds of thunderstorms with torrential rainfall produced 3.00 to 6.00 inches of rain in much of Stark County late in the evening of May 26th. This resulted in widespread flash flooding across nearly all of the county. Most roads were impassable and closed through the night.

Marshall County Broadmoor 26 2100CST 27 0400CST 0 0 0.00K 0.00K Flash Flood

Several rounds of thunderstorms with torrential rainfall produced 2.50 to 4.00 inches of rain in western and southern Marshall County late in the evening of May 26th. This resulted in flash flooding which impacted streets in Camp Grove, Sparland and Lacon, as well as numerous rural roads. Most roads were impassable and closed through the night.

Peoria County 2 N Elmore 26 2130CST 4 NE North Chillicothe 27 0400CST 0 0 0.00K 0.00K Flash Flood

77 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Central

Several rounds of thunderstorms with torrential rainfall produced 2.50 to 4.00 inches of rain in extreme northern Peoria County, mainly north of State Highway 90, late in the evening of May 26th. This resulted in flash flooding which impacted mainly rural roads. Most roads were impassable and closed through the night.

Woodford County 1 ENE Washburn 26 2230CST 4 NNE Spires 27 0630CST 0 0 0.00K 0.00K Flash Flood

Several rounds of thunderstorms with torrential rainfall produced 2.50 to 4.00 inches of rain in extreme northern and northeast Woodford County late in the evening of May 26th. This resulted in flash flooding which impacted streets in Minonk, parts of Interstate 39, and numerous rural roads. Most roads were impassable and closed through the night.

Fulton County 3 N Avon 27 0130CST 3 SSE Banner 0800CST 0 0 0.00K 0.00K Flash Flood

Thunderstorms with torrential rainfall produced 3.00 to 5.00 inches of rain in a large part of Fulton County during the early morning hours of May 27th. Several roads were closed and many rural roads were reported as having several inches of water flowing over them.

Cass County 4 W Chandlerville 27 0230CST 6 NNE Newmansville 0815CST 0 0 0.00K 0.00K Flash Flood

Several rounds of thunderstorms with torrential rainfall produced 3.00 to 5.00 inches of rain in central and northern Cass County during the early morning hours of May 27th. Streets in Chandlerville were flooded and several roads were closed, including the main county road between Chandlerville and Beardstown.

Knox County 4 WNW Altona 27 0325CST 6 NNE Centerville 0915CST 0 0 0.00K 0.00K Flood

Several rounds of thunderstorms with torrential rainfall produced 4.00 to 6.00 inches of rain in northeast Knox County late in the evening of May 26th. This resulted in numerous reports of flooded rural roads in and near Altona and Victoria. Additional rainfall overnight kept roads closed into the early morning. Flood waters subsided by late in the morning on the 27th.

Marshall County Broadmoor 27 0400CST 1000CST 0 0 0.00K 0.00K Flood

Several rounds of thunderstorms with torrential rainfall produced 2.50 to 4.00 inches of rain in western and southern Marshall County late in the evening of May 26th. This resulted in flash flooding which impacted streets in Camp Grove, Sparland and Lacon, as well as numerous rural roads. Most roads were impassable and closed through the night. Additional rainfall overnight kept many roads closed into the early morning. The flooding subsided by late morning on the 27th.

Peoria County 2 N Elmore 27 0400CST 4 NE North Chillicothe 1230CST 0 0 0.00K 0.00K Flood

Several rounds of thunderstorms with torrential rainfall produced 2.50 to 4.00 inches of rain in extreme northern Peoria County, mainly north of State Highway 90, late in the evening of May 26th. This resulted in flash flooding which impacted mainly rural roads. Most roads were impassable and closed through the night. Additional rainfall overnight kept many roads closed through the night. Most of the flooding subsided by early afternoon.

Stark County 2 NNW La Fayette 27 0400CST 3 SW Elmira 1500CST 0 0 0.00K 0.00K Flood

Several rounds of thunderstorms with torrential rainfall produced 3.00 to 6.00 inches of rain in much of Stark County late in the evening of May 26th. This resulted in widespread flash flooding across nearly all of the county. Most roads were impassable and closed through the night. Additional rainfall overnight kept roads closed through the early morning. Flood waters finally subsided by mid-afternoon on the 27th.

78 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Central Woodford County 1 ENE Washburn 27 0630CST 4 NNE Spires 1230CST 0 0 0.00K 0.00K Flood

Several rounds of thunderstorms with torrential rainfall produced 2.50 to 4.00 inches of rain in extreme northern and northeast Woodford County late in the evening of May 26th. This resulted in flash flooding which impacted streets in Minonk, parts of Interstate 39, and numerous rural roads. Most roads were impassable and closed through the night. Additional rainfall overnight kept many of the roads closed through the morning. The flooding subsided by early afternoon.

A slow-moving warm front brought several rounds of showers and thunderstorms to central Illinois from May 25th through May 27th. The heaviest rainfall of between 2 and 6 inches occurred along and west of the Illinois River Valley. As showers and thunderstorms re-developed across the area during the evening of May 26th, high rainfall rates on top of already saturated soil led to flash flooding of many locations across west-central Illinois.

Sangamon County Auburn 27 1337CST 1342CST 0 0 2.00K 0.00K Thunderstorm Wind (61EG)

A three-foot diameter tree was blown down at Route 4 and Curran Road.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Sangamon County Chatham 27 1343CST 1348CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A large tree branch was snapped off. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Sangamon County 2 E Chatham 27 1345CST 1350CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Several large tree branches were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Sangamon County 1 S Iles 27 1347CST 1352CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A tree was blown down on Krell Drive on the southwest side of Springfield.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Sangamon County 1 E Mildred 27 1348CST 1353CST 0 0 3.00K 0.00K Thunderstorm Wind (61EG)

A small shed was destroyed near the intersection of Ash and MacArthur.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Sangamon County Grandview 27 1352CST 1357CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several large tree branches were blown down on Reservoir Street in Grandview.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Sangamon County 1 ESE Springfield 27 1353CST 1358CST 0 0 250.00K 0.00K Thunderstorm Wind (61EG)

Shingles were damaged on several homes. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

79 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Central Sangamon County Clear Lake 27 1354CST 1359CST 0 0 8.00K 0.00K Thunderstorm Wind (61EG)

A power pole was snapped and several tree branches were blown down in Clear Lake.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Sangamon County Southlawn 27 1355CST 1400CST 0 0 50.00K 0.00K Thunderstorm Wind (61EG)

Numerous large trees were blown down along West Lake Drive near the Henson Robinson Zoo.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Sangamon County 3 SSE Springfield 27 1355CST 1400CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A tree was blown down near Brenden Gardens Retirement Home. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Sangamon County 1 NE Toronto 27 1355CST 1400CST 0 0 35.00K 0.00K Thunderstorm Wind (61EG)

Numerous tree branches were blown down on the University of Illinois at Springfield campus off Toronto Road. A greenhouse on campus was damaged by falling limbs. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Christian County Edinburg 27 1400CST 1405CST 0 0 6.00K 0.00K Thunderstorm Wind (61EG)

Three large trees were blown down in Edinburg. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Sangamon County 1 SSW Riverton 27 1400CST 1405CST 0 0 415.00K 0.00K Thunderstorm Wind (70EG)

Forty eight mobile homes were damaged at the Lincoln Place Mobile Home Park about a mile south of Riverton. Several large trees were uprooted just west of the park and numerous large tree branches were broken off and blown onto homes within the park. No injuries were reported. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Macon County Blue Mound 27 1415CST 1420CST 0 0 2.00K 0.00K Thunderstorm Wind (61EG)

A large tree was snapped at the base. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Sangamon County Illiopolis 27 1416CST 1421CST 0 0 22.00K 0.00K Thunderstorm Wind (61EG)

A large tree was blown onto a truck. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Macon County Niantic 27 1420CST 1425CST 0 0 90.00K 0.00K Thunderstorm Wind (61EG)

Numerous power poles and power lines were blown down. The roof of a machine shed was torn off.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

80 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Central Macon County Forsyth 27 1433CST 1438CST 0 0 35.00K 0.00K Thunderstorm Wind (61EG)

Windows were blown out at the Best Buy store in Forsyth. A piece of roof was torn off Lowes.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Macon County Warrensburg 27 1434CST 1439CST 0 0 2.00K 0.00K Thunderstorm Wind (61EG)

A large tree was snapped off at the base in Warrensburg. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Macon County 1 E Decatur 27 1435CST 1440CST 0 0 30.00K 0.00K Thunderstorm Wind (52EG)

Multiple tree limbs were blown down on Regal Avenue in Decatur.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Macon County Argenta 27 1452CST 1457CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A large tree branch was snapped off in Argenta. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Piatt County Monticello 27 1500CST 1505CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A large tree was blown down in Monticello. A cluster of thunderstorms developed across Iowa, then tracked southeastward along a warm front into central Illinois during the afternoon of May 27th. Some of the storms became severe, producing damaging winds in excess of 70 mph across portions of northern Sangamon into western Macon counties. The most widespread wind damage occurred near the town of Riverton, where numerous mobile homes suffered damage from falling trees. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Knox County 3 NW Rio 28 1730CST 6 NNE Centerville 2330CST 0 0 1.00M 0.00K Flash Flood

Thunderstorms with torrential rainfall produced nearly 3.00 inches of rain in just one hour. Due to the already saturated ground, much of this additional rainfall rapidly caused flash flooding in the northern half of Knox County. The city of Galesburg was impacted the greatest. Rapidly rising water on many city streets led to at least 30 stranded motorists and one water rescue. Water flooded parts of Carl Sandburg College as well, causing nearly $300,000 in damage to flooring, furniture, and equipment. Numerous homes and businesses also sustained considerable flood damage. Nearly all rural roads in the northern half of Knox County were closed due to the flooding.

After several days of repeated rainfall, strong thunderstorms produced significant flash flooding across portions of Knox County during the evening of May 28th. The hardest hit location was the city of Galesburg, where many city streets flooded, leading to several stranded motorists. Numerous homes and businesses, including Carl Sandburg College sustained considerable flood damage. Schuyler County 1 N Littleton 28 2148CST 2153CST 0 0 70.00K 0.00K Thunderstorm Wind (61EG)

Several power poles were blown down along Highway 67 near Littleton.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

81 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Central Mclean County 5 SE Danvers 28 2315CST 2318CST 0 0 18.00K 0.00K Thunderstorm Wind (61EG)

A tree was blown down onto a house southeast of Danvers. The roof of an old barn was blown off and numerous tree branches were knocked down as well. A nearly stationary frontal boundary extending from the Plains into the southern Great Lakes provided the focus for several periods of showers and thunderstorms across north-central Illinois on May 28th. A few of the storms became severe during the late evening of the 28th into the early morning hours of the 29th, producing isolated wind damage in Schuyler, McLean, and Woodford counties. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Knox County 3 NW Rio 28 2330CST 6 NNE Centerville 30 1000CST 0 0 0.00K 0.00K Flood

Thunderstorms with torrential rainfall produced nearly 3.00 inches of rain in just one hour. Due to the already saturated ground, much of this additional rainfall rapidly caused flash flooding in the northern half of Knox County. The city of Galesburg was impacted the greatest. Rapidly rising water on many city streets led to at least 30 stranded motorists and one water rescue. Water flooded parts of Carl Sandburg College as well, causing nearly $300,000 in damage to flooring, furniture, and equipment. Numerous homes and businesses also sustained considerable flood damage. Nearly all rural roads in the northern half of Knox County were closed due to the flooding. Additional periods of rainfall during much of the day on May 29th kept most of the roads flooded for nearly 36 hours. The flooding finally subsided during the late morning hours of May 30th.

After several days of repeated rainfall, strong thunderstorms produced significant flash flooding across portions of Knox County during the evening of May 28th. The hardest hit location was the city of Galesburg, where many city streets flooded, leading to several stranded motorists. Numerous homes and businesses, including Carl Sandburg College sustained considerable flood damage. Woodford County 1 WSW El Paso 29 0150CST 0155CST 0 0 14.00K 0.00K Thunderstorm Wind (61EG)

Five trees were blown down and a power pole was damaged. A nearly stationary frontal boundary extending from the Plains into the southern Great Lakes provided the focus for several periods of showers and thunderstorms across north-central Illinois on May 28th. A few of the storms became severe during the late evening of the 28th into the early morning hours of the 29th, producing isolated wind damage in Schuyler, McLean, and Woodford counties. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Woodford County 1 NE El Paso 30 1420CST 1425CST 0 0 65.00K 0.00K Thunderstorm Wind (52EG)

Numerous trees and power lines were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Woodford County 2 E Minonk Jct 30 1432CST 1437CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A large tree was blown down onto Illinois Route 116 at 3000E and 1900N.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Woodford County 3 W Panola 30 1443CST 1448CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A tree was blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Schuyler County 3 N Huntsville 30 1545CST 1550CST 0 0 20.00K 0.00K Thunderstorm Wind (52EG)

Several small trees were blown down at the Weinberg King State Fish and Wildlife Area. A few larger trees were knocked down along Highway 101 east of Augusta near the Schuyler/Hancock County line.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

82 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Central Schuyler County 2 NNE Rushville 30 1830CST 2 SSW Ray 31 0030CST 0 0 0.00K 0.00K Flash Flood

A band of thunderstorms with heavy rain produced more than 2.00 inches of rain in 90 minutes during the evening of May 30th. The greatest impact was on roads near the La Moine River, which became inundated and were closed from late evening into the night. Several rural roads between Rushville and the La Moine River were also flooded and impassable in spots.

Sangamon County Lowder 30 1848CST 1853CST 0 0 60.00K 0.00K Thunderstorm Wind (52EG)

Empty train cars were blown over near Lowder. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Sangamon County 1 WSW Compro 30 1852CST 1857CST 0 0 60.00K 0.00K Thunderstorm Wind (61EG)

Two grain bins and two grain dryers were destroyed on a farm.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Sangamon County 2 NW Compro 30 1852CST 1857CST 0 0 35.00K 0.00K Thunderstorm Wind (61EG)

Six power poles were snapped close to a sub-station located near Auburn Road and Lead Line Road.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Sangamon County Loami 30 1858CST 1903CST 0 0 40.00K 0.00K Thunderstorm Wind (61EG)

Several power poles were snapped near Loami. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. De Witt County Kenney 30 1930CST 1935CST 0 0 15.00K 0.00K Thunderstorm Wind (52EG)

Several power lines were blown down around town. A tree fell on a house.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. De Witt County 2 ESE Clinton 30 1945CST 1950CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)

A large tree was blown down, blocking both lanes of Highway 10 just east of Clinton.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. De Witt County Wapella 30 1945CST 1950CST 0 0 25.00K 0.00K Thunderstorm Wind (52EG)

Power lines were blown down in Wapella. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Menard County 1 W Lincns New Salem St 30 1950CST 1955CST 0 0 12.00K 0.00K Thunderstorm Wind (52EG)

A few trees were blown down at New Salem State Park along State Highway 97.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

83 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Central Logan County 2 N Emden 30 2000CST 4 NW Mt Joy 31 0130CST 0 0 0.00K 0.00K Flash Flood

Already saturated ground and an additional 2.00 to 3.00 of rain during the late evening of May 30th resulted in flooding of many rural roads in northern Logan County. The greatest impact was from Emden to Hartsburg where the water was 18 to 24 inches deep in spots. The flash flooding subsided during the early morning hours of May 31st.

Tazewell County 3 WSW Boynton 30 2000CST 2 NE Allentown 31 0130CST 0 0 0.00K 0.00K Flash Flood

Already saturated ground and an additional 2.00 to 3.00 of rain during the late evening of May 30th resulted in flooding of many rural roads in eastern Tazewell County. The greatest impact was from Hopedale to the village of Minier. The flash flooding subsided during the early morning hours of May 31st.

Champaign County 1 NW Urbana 30 2025CST 2030CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A flag pole was snapped. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Champaign County Champaign 30 2030CST 2035CST 0 0 30.00K 0.00K Thunderstorm Wind (52EG)

Several tree branches were blown down around Champaign. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Effingham County 1 SW Dieterich 30 2105CST 2110CST 0 0 12.00K 0.00K Thunderstorm Wind (52EG)

A semi truck was blown over on Route 33 near Dieterich. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jasper County Island Grove 30 2107CST 2112CST 0 0 55.00K 0.00K Thunderstorm Wind (52EG)

Several trees and power poles were blown down near Island Grove.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cumberland County Neoga 30 2131CST 2136CST 0 0 16.00K 0.00K Thunderstorm Wind (52EG)

Several large tree branches were blown down and a flag pole was bent.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Clark County Clarksville 30 2200CST 2205CST 0 0 12.00K 0.00K Thunderstorm Wind (52EG)

A few trees were blown down in Clarksville. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Schuyler County 2 NNE Rushville 31 0030CST 2 SSW Ray 1300CST 0 0 0.00K 0.00K Flood

84 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Central

A band of thunderstorms with heavy rain produced more than 2.00 inches of rain in 90 minutes during the evening of May 30th. The greatest impact was on roads near the La Moine River, which became inundated and were closed from late evening into the night. Several rural roads between Rushville and the La Moine River were also flooded and impassable in spots. Additional rainfall during the very early morning hours of May 31st kept many roads closed in southern Schuyler County. The flooding subsided by early afternoon on May 31st. A slow-moving storm system brought showers and thunderstorms to central Illinois during the afternoon and evening of May 30th. Some of the storms became severe, producing damaging wind gusts in excess of 60 mph and locally heavy rainfall. Isolated flash flooding occurred in areas where persistent rains fell on very saturated ground.

Tazewell County 1 SSW Morton 31 1500CST 1505CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Several tree branches were blown down at Queenwood and Main Street in Morton.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Tazewell County 2 ESE Parkland 31 1540CST 1 S Deer Creek 2130CST 0 0 0.00K 0.00K Flash Flood

Slow moving thunderstorms created rainfall rates of 1.00 to 2.00 inches per hour over already saturated ground due to flash flooding the previous night in southern and eastern Tazewell County. Numerous roads were flooded and one vehicle rescue was made. Rainfall totals from May 30th through the 31st ranged from 4.00 to 7.00 inches.

Woodford County 1 S Deer Creek 31 1600CST 2130CST 0 0 0.00K 0.00K Flash Flood

Slow moving thunderstorms produced 3.00 to 4.00 inches on already saturated ground, producing widespread flash flooding in southern Woodford County. Numerous rural roads were inundated and impassable as a result of the flash flooding.

Mclean County 3 NW Stanford 31 1610CST 5 NNW Woodruff 2130CST 0 0 0.00K 0.00K Flash Flood

Slow moving thunderstorms produced 3.00 to 4.00 inches of rain on already saturated ground, producing widespread flash flooding in northwest and northern Mc Lean County. Numerous rural roads were flooded, with the greatest impact from Carlock to Chenoa were many roads were impassable.

Christian County 1 E Morrisonville 31 2000CST 2005CST 0 0 12.00K 0.00K Thunderstorm Wind (52EG)

A large tree limb was blown onto a vehicle. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Christian County 1 ESE Kincaid 31 2007CST 2012CST 0 0 10.00K 0.00K Thunderstorm Wind (61EG)

A tree was blown onto a house in Jeiseyville just southeast of Kincaid.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Christian County Edinburg 31 2007CST 2012CST 0 0 8.00K 0.00K Thunderstorm Wind (61EG)

A large tree was blown onto a trailer. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

85 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Central Christian County Taylorville 31 2015CST 2020CST 0 0 25.00K 0.00K Thunderstorm Wind (61EG)

A small machine shed was destroyed near Taylorville. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Menard County Lincns New Salem St 31 2015CST 2020CST 0 0 12.00K 0.00K Thunderstorm Wind (52EG)

Several trees were blown down near New Salem Park and Highway 97.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. De Witt County Wapella 31 2030CST 2035CST 0 0 8.00K 0.00K Thunderstorm Wind (52EG)

Several tree limbs were blown down in Wapella. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Sangamon County 3 WSW New Berlin 31 2045CST Sherman 2359CST 0 0 0.00K 0.00K Flash Flood

Slow moving thunderstorms produced 1.50 to 3.00 inches of rain on already saturated ground in a two hour period during the late evening across much of Sangamon County. This rapidly produced flash flooding which made many roads impassable. Numerous vehicles became trapped in the rapidly rising water in the city of Springfield, where several water rescues were made. Many rural roads were closed, especially to the south and east of the Springfield metro area. The flash flooding continued through the night, and into June 1st.

Piatt County Cisco 31 2050CST 2055CST 0 0 12.00K 0.00K Thunderstorm Wind (52EG)

Trees were blown down on Route 32 near Cisco. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Shelby County 2 ENE Lakewood 31 2055CST 2100CST 0 0 1.50K 0.00K Thunderstorm Wind (52EG)

A window was blown out of a house. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Macon County 1 E Decatur 31 2100CST 2105CST 0 0 20.00K 0.00K Thunderstorm Wind (61EG)

Numerous large tree branches were blown down. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Piatt County Monticello 31 2100CST 2105CST 0 0 1.50K 0.00K Thunderstorm Wind (52EG)

A cable line was blown down in Monticello. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Piatt County Milmine 31 2100CST 2105CST 0 0 15.00K 0.00K Thunderstorm Wind (52EG)

Power lines were blown down in Milmine. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

86 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Central Macon County 2 WNW Decatur 31 2103CST 2107CST 1.99 100 0 0 500.00K 0.00K Tornado (EF1)

A tornado touched down at 10:03 PM CDT on the northwest side of Decatur near the intersection of Division Street and Summit Avenue. The tornado tracked northeastward through Graceland Cemetery, across Oakland Avenue, and just south of the Decatur Memorial Hospital before dissipating near East Maywood Court at 10:07 PM CDT. Numerous trees and tree branches were blown down along the path of the tornado, with the most significant tree damage occurring in Graceland Cemetery. The Plaza TV shop on Oakland Avenue lost its roof and suffered broken windows and siding damage. Other minor roofing damage occurred along the path of the tornado, with numerous trees and tree branches knocked down for several blocks south of the tornado as well. No injuries were reported.

Macon County Argenta 31 2110CST 2115CST 0 0 30.00K 0.00K Thunderstorm Wind (61EG)

Two power poles and several power lines were blown down. Minor damage occurred to three houses.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Macon County 2 S Argenta 31 2110CST 2115CST 0 0 60.00K 0.00K Thunderstorm Wind (61EG)

Outbuildings and grain bins were damaged 2 miles south of Argenta.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Macon County Argenta 31 2110CST 2115CST 0 0 213.00K 0.00K Thunderstorm Wind (70EG)

The roof of a house was severely damaged in Argenta. A large tree fell on a house and several other trees were damaged as well. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Piatt County Bement 31 2115CST 2120CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A tree was blown down across a road in Bement. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Logan County 1 SSW Cornland 31 2120CST 2 NNW Narita 2359CST 0 0 0.00K 0.00K Flash Flood

Slow moving thunderstorms produced 1.50 to 2.00 inches of rain on already saturated ground in a two hour period during the late evening across southeast Logan County. This rapidly produced flash flooding which made many rural roads impassable. State Route 121 near Latham was closed much of the night due to the flooding. The flash flooding continued through the night, and into June 1st.

Macon County 3 SSE Niantic 31 2130CST 2359CST 0 0 0.00K 0.00K Flash Flood

Slow moving thunderstorms produced 1.50 to 2.50 inches of rain on already saturated ground in a two hour period during the late evening across northwest and northern Macon County. This rapidly produced flash flooding which made many rural roads impassable. State Route 121 from Warrensburg to the Logan County line was closed much of the night due to the flooding. The flash flooding continued through the night, and into June 1st.

Effingham County Dieterich 31 2130CST 2135CST 0 0 45.00K 0.00K Thunderstorm Wind (61EG)

A grain bin was toppled over onto another grain bin. A storage building lost its roof and numerous trees were blown down.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

87 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Central Champaign County Champaign 31 2135CST 2140CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A large tree branch was blown down onto Springfield Avenue in Champaign.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Vermilion County Rankin 31 2200CST 2201CST 0 0 0.00K 0.00K Hail (1.00)

Clark County Martinsville 31 2215CST 2220CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A tree was blown down across a road in Martinsville. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Vermilion County Hoopeston 31 2220CST 2225CST 0 0 25.00K 0.00K Thunderstorm Wind (61EG)

Numerous trees were blown down in Hoopeston. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Vermilion County Danville 31 2220CST 2225CST 0 0 40.00K 0.00K Thunderstorm Wind (61EG)

Numerous power lines were blown down around Danville. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Vermilion County 2 NNW Meeks 31 2224CST 2225CST 0.49 70 0 0 50.00K 0.00K Tornado (EF1)

A tornado touched down in an open field 2.6 miles southeast of Westville at 11:24 PM CDT. The tornado tracked to the northeast, crossing North 1850 East Road, then severely damaged an attached garage and part of a house. The garage was pulled from its foundation and pushed about 10 feet on top of the car inside. A large barn was damaged and several trees were splintered as well. The tornado dissipated about one tenth of a mile northeast of the property at 11:25 PM CDT. No injuries were reported.

Clark County Marshall 31 2240CST 2245CST 0 0 6.00K 0.00K Thunderstorm Wind (52EG)

A tree was blown down onto a house in Marshall. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Christian County 4 SSW Sicily 31 2245CST 2359CST 0 0 0.00K 0.00K Flash Flood

Slow moving thunderstorms produced 1.50 to 2.00 inches of rain on already saturated ground in a two hour period during the late evening across western Christian County. This rapidly produced flash flooding which made many rural roads impassable. The flash flooding continued through the night, and into June 1st.

Clark County Marshall 31 2255CST 2300CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A traffic light was blown down in Marshall. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

88 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Central Clay County 3 NNE Mc Cabe 31 2315CST 2320CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A small shed was blown across the road at Rt. 45 and Hickory Hill Lane about 3 miles northwest of Flora.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Effingham County 3 W Altamont 31 2330CST 2 N Teutopolis 2359CST 0 0 0.00K 0.00K Flash Flood

Slow moving thunderstorms produced 3.00 to 4.00 inches of rain on already saturated ground from late evening through the night across much of Effingham County. This rapidly produced flash flooding which made many rural roads impassable, and flooded numerous streets in the city of Effingham. The flash flooding continued through the night, and into June 1st.

Jasper County 5 NNW Island Grove 31 2345CST 4 ENE Advance 2359CST 0 0 0.00K 0.00K Flash Flood

Slow moving thunderstorms produced 3.00 to 4.00 inches of rain on already saturated ground from late evening through the night across all of Jasper County. This rapidly produced flash flooding which made many rural roads impassable, and flooded numerous streets in the city of Newton. The flash flooding continued through the night, and into June 1st.

Clay County 7 N Cruse 31 2350CST 5 ENE Bible Grove 2359CST 0 0 0.00K 0.00K Flash Flood

Slow moving thunderstorms produced 3.00 to 4.00 inches of rain on already saturated ground from late evening through the night across all of Clay County. This rapidly produced flash flooding which made many rural roads impassable, and flooded numerous streets in the city of Flora. The flash flooding continued through the night, and into June 1st.

Richland County 3 S Claremont 31 2350CST 2355CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A tree was blown down 3 miles south of Claremont. An approaching cold front brought showers and thunderstorms to central Illinois during the evening of May 31st. Many of the storms became severe, producing widespread wind damage across the area. Two tornadoes briefly touched down as well. The first tornado occurred in Decatur in Macon County, while the second one touched down just southeast of Westville in Vermilion County. In addition, excessive rainfall rates of 2 to 3 inches per hour associated with some of the storms produced localized flash flooding that lingered into the morning hours of June 1st. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. ILLINOIS, Northeast Will County Mokena 03 1758CST 1759CST 0 0 0.00K 0.00K Hail (0.75)

Strong storms produced hail across parts of northeast Illinois during the evening of May 3rd.

Lee County Franklin Grove 19 1920CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts were estimated to 60 mph in Franklin Grove. A severe dust storm with near zero visibility was reported with these strong winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Winnebago County 1 W Wempleton 19 1947CST 1949CST 0 0 0.00K 0.00K Hail (1.75)

Golf ball size hail was reported near Trask Bridge Road and Eddie Road.

89 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northeast Winnebago County 1 S Samuelson Corners 19 1958CST 1959CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported near Guilford and Alpine Roads.

Winnebago County 1 ESE Rockton 19 1958CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Power lines were blown down and utility poles were leaning over. Shredded tree branches were reported near Hononegah Road. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Winnebago County 1 SSW Rckfrd Cottonwood Ar 19 1959CST 2000CST 0 0 0.00K 0.00K Hail (1.25)

Quarter to half dollar size hail was reported two miles west of downtown Rockford.

Winnebago County 1 ESE Harrison 19 2013CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG) Eight inch diameter tree limbs were blown down on Route 75, one mile east of Meridian Road. An estimated 25 to 30 inch diameter tree was blown down on Route 75, 1.5 miles east of Meridian Road.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Winnebago County Loves Park 19 2017CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)

Trees were blown down. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Boone County 1 ENE Belvidere 19 2019CST 2020CST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail was reported along Julien Street. Boone County Belvidere Arpt 19 2025CST 2026CST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail was reported at the Popular Grove Airport. A line of strong to severe thunderstorms moved northeast across parts of northwest Illinois producing large hail and damaging winds. La Salle County 1 WNW (MMO)Marseilles 20 2011CST 2012CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was report near Interstate 80, north of Marseilles.

Grundy County Coal City 20 2132CST 0 0 2.00K 0.00K Thunderstorm Wind (60EG)

Several trees and power lines were blown down, including some fairly large trees.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Kankakee County Manteno 20 2210CST 2211CST 0 0 0.00K 0.00K Hail (1.00)

90 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northeast Will County Peotone 20 2230CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

A large tree was blown down. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Cook County 1 S Cicero 20 2259CST Corwith 21 0100CST 0 0 0.00K 0.00K Flood

High standing water was reported on southbound Interstate 55 at Pulaski Road.

Strong to severe thunderstorms moved across parts of northeast Illinois during the late evening of May 20th.

Livingston County 1 SSE Reading 26 2209CST 3 W Campus 27 0300CST 0 0 0.00K 0.00K Flash Flood

Several roads were closed due to high water and flooding. Storm total rainfall reports included 3.50 inches one mile southeast of Pontiac; 2.50 inches in Chatsworth; 2.40 inches in Fairbury and 1.55 inches in Dwight.

Heavy rain developed across parts of central Illinois which caused flash flooding in some areas.

La Salle County Marseilles 28 1855CST 0 0 5.00K 0.00K Thunderstorm Wind (65EG)

A roof was blown off a machine building and large tree limbs were blown down. Debris was wrapped around trees.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Du Page County Naperville 28 1909CST 1910CST 0 0 0.00K 0.00K Hail (0.75)

Grundy County Mazon 28 1915CST 0 0 50.00K 0.00K Lightning

A substation was severely damaged by a lightning strike. Grundy County 2 WSW Gorman 28 1918CST 1920CST 1.85 20 0 0 5.00K 0.00K Tornado (EF0)

An EF0 tornado touched down northeast of Mazon near Reed Road, west of Higgins Road where a power pole was blown down. The tornado moved northeast and blew down part of a tree on Higgins Road just south of Spring Road. Three more power poles were blown down on Campbell Road. Doors were blown off an outbuilding nearby before the tornado dissipated west of Coal City.

Grundy County 3 W Coal City 28 1920CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)

Large trees were uprooted south of the Route 113 and Gorman Road intersection.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Cook County 1 S Sag Bridge 28 1925CST 0 0 0.50K 0.00K Thunderstorm Wind (55EG)

A tree fell onto power lines on Bell Road, which was closed between McCarthy Road and 131st Avenue.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph.

91 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northeast Cook County Hometown 28 1927CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

A tree was blown down blocking a road. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Cook County 1 ESE Hometown 28 1942CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

A tree was blown down blocking Pulaski Road at 92nd Street. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Kankakee County Manteno 28 1945CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG) Note: The measured wind gust of 51 knots is equivalent to 59 mph.

Will County 2 ENE Barbers Corners 28 1955CST 2300CST 0 0 0.00K 0.00K Flood

High standing water was reported on Interstate 355 at Boughton Road.

Cook County 2 NNW Hillside 28 2030CST 2 NE Deering 29 0100CST 0 0 0.00K 0.00K Flash Flood

Numerous viaducts were flooded across central and southern sections of Chicago with some impassable. Vehicles were stalled in flood waters. The Cicero Avenue entrance to Interstate 55 was flooded and closed. The intersection of Ogden Avenue and LaGrange Road was flooded and closed. Midway Airport measured 1.96 inches of rain in 1 hour and 17 minutes, from 641 pm CST to 758 pm CST.

Cook County 1 W Hastings 28 2050CST 29 0100CST 0 0 0.00K 0.00K Flash Flood

Six to eight inches of water was reported at Main Street and 4th Avenue, which was closed.

Ford County Piper City 29 0026CST 0 0 5.00K 0.00K Thunderstorm Wind (60EG)

Eight to ten power poles were blown down. A few sheds were blown down. A big evergreen tree was blown down along with numerous large tree limbs. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Will County 2 N Romeoville 29 0505CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Several tree limbs, a few approximately 5 inches in diameter, were blown down. Several parts of fences were also blown down, near the intersection of Naperville Drive and Honeytree Drive.

Severe thunderstorms moved across parts of northern Illinois during the evening of May 28th producing strong winds, heavy rain and flash flooding. Additional thunderstorms moved across parts of northern Illinois during the early morning hours of May 29th. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cook County Lynwood 30 1350CST 1352CST 0 0 0.00K 0.00K Hail (1.25)

Livingston County Pontiac 30 1352CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

Trees were reported snapped. Note: The measured wind gust of 53 knots is equivalent to 61 mph.

92 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northeast Grundy County Mazon 30 1427CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Sustained winds were estimated to 40 mph with gusts estimated between 50 and 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Livingston County Pontiac 30 1445CST 0 0 1.00K 0.00K Thunderstorm Wind (55EG)

Several large trees and power lines were blown down. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Kankakee County Kankakee 30 1515CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Numerous 3 to 6 inch diameter tree limbs were blown down in downtown Kankakee.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cook County East Chicago Hgts 30 1538CST 1539CST 0 0 0.00K 0.00K Hail (0.75)

Cook County 5 E Chicago Hgts 30 1540CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Six to eight inch diameter tree limbs were blown down. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Du Page County 2 SE The Meadows 30 1620CST 1 0 0.00K 0.00K Lightning

A 17 year old girl was struck by lightning in O'Brien Park. Police found her unconscious and not breathing, she was pronounced dead at the scene a short time later. F17OU Cook County 1 S Lynwood 30 1623CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)

Wind gusts were measured to 62 mph near the intersection of 394 and Lincoln Highway.

Note: The measured wind gust of 54 knots is equivalent to 62 mph. Ogle County Polo 30 1720CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Trees and wires were blown down. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Ogle County 2 S Oregon 30 1735CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

A shed was blown down. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Ogle County 1 NNE Oregon 30 1740CST Stillman Vly 1745CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Wind damage was reported from Loudon State Park to Stillman Valley.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Ogle County 1 WNW Stillman Vly 30 1745CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Trees and wires were blown down near Holcomb and Stillman Roads.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph.

93 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northeast Ogle County Lindenwood 30 1800CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Trees and wires were blown down. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Winnebago County 2 S Rckfrd Cottonwood Ar 30 1800CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Trees 12 to 18 inches in diameter were uprooted near Ogilby and Montague Roads.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Iroquois County 3 SSW Buckley 30 2055CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG) Note: The measured wind gust of 51 knots is equivalent to 59 mph.

Iroquois County 2 SW Danforth 30 2110CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

A semi was overturned on Interstate 57, about two miles north of Gilman.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Iroquois County Watseka 30 2125CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Trees and power lines were blown down. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Kankakee County Momence 30 2140CST 0 0 5.00K 0.00K Thunderstorm Wind (65EG)

Trees were blown down. Part of the roof of a storage unit and a train depot were blown off.

Strong to severe thunderstorms moved across parts of northern Illinois during the afternoon and evening hours of May 30th. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Livingston County Chatsworth 31 1629CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)

Numerous trees were blown down. A semi was flipped over. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Ford County Piper City 31 1632CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Pine trees were uprooted and power lines were blown down. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Iroquois County Crescent City 31 2208CST 0 0 0.00K 0.00K Thunderstorm Wind (73MG)

Wind gusts to 84 mph were measured with a hand held anemometer.

Note: The measured wind gust of 73 knots is equivalent to 84 mph. Ford County 1 SW Paxton Arpt 31 2228CST 2359CST 0 0 0.00K 0.00K Flash Flood

County Roads 200N and 1700E were barricaded due do flooding. See StormData for June, 2013 for continuation of this flash flood event. Strong to severe thunderstorms moved across parts of central Illinois during the afternoon of May 31st.

94 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northwest Hancock County 3 S Burnside 05 1130CST 12 E Fountain Green 2030CST 0 0 0.00K 0.00K Flood

Heavy rains during the first week of May resulted in the La Moine River at Colmar going above the major flood stage level of 24 feet on May 5th around 1 pm CDT. It crested around 24.1 feet around 7 pm CDT. It fell back below the major flood stage level around 9 pm CDT.

Mcdonough County 13 NW Colmar 05 1130CST 2 ENE Argyle Lake Sp 2030CST 0 0 0.00K 0.00K Flood

Heavy rains during the first week of May resulted in the La Moine River at Colmar going above the major flood stage level of 24 feet on May 5th around 1 pm CDT. It crested around 24.1 feet around 7 pm CDT. It fell back below the major flood stage level around 9 pm CDT. Heavy rains of 2 to 3 inches that fell from May 2 to May 4 resulted in major river flooding on the La Moines River near Colmar, IL during the afternoon and evening of May 5th.

Jo Daviess County 1 N Hanover 19 1245CST 0 0 0.00K 0.00K Hail (0.75)

Jo Daviess County 3 SE Apple Canyon Lake 19 1259CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter measured 2 inch diameter tree limbs down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Jo Daviess County 3 NNE Stockton 19 1307CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A COOP observer measured a 4 inch diameter tree limb down at the residence.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Jo Daviess County 3 NNE Stockton 19 1307CST 0 0 0.00K 0.00K Thunderstorm Wind (56MG)

A COOP observer measured 65 mph winds. Note: The measured wind gust of 56 knots is equivalent to 64 mph. Henderson County Lomax 19 1603CST 0 0 0.00K 0.00K Hail (1.00)

Hancock County 1 NW Warsaw 19 1617CST 0 0 0.00K 0.00K Hail (1.25)

The time of this report was estimated based off of radar data.

Hancock County 1 NW Warsaw 19 1621CST 0 0 0.00K 0.00K Hail (1.00)

Hancock County 1 SW Hamilton 19 1638CST 0 0 0.00K 0.00K Hail (1.00)

Mercer County New Windsor 19 1745CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Law enforcement reported trees down near U.S. Highway 67 south of 50th Street.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

95 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northwest Rock Island County 1 E Moline 19 1746CST 0 0 0.00K 0.00K Hail (1.00)

Henry County 1 S Alpha 19 1750CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Law enforcement reported trees down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Warren County 1 S Smithshire 19 1801CST 0 0 0.00K 0.00K Hail (1.75)

Henry County Cambridge 19 1803CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A trained spotter measured 62 mph winds ahead of the storms and there was a lot of blowing dust.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Henry County 1 E Cambridge 19 1809CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Law enforcement reported trees down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Whiteside County 1 N Albany 19 1838CST 0 0 0.00K 0.00K Hail (0.75)

Henry County 1 E Galva 19 1842CST 0 0 0.00K 0.00K Hail (0.75)

Whiteside County 2 W Ustick 19 1849CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A trained spotter estimated 50 to 60 mph winds and pea size hail.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Whiteside County 1 E Sterling 19 1855CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

A trained spotter measured 60 mph winds. Note: The measured wind gust of 50 knots is equivalent to 58 mph. Carroll County 1 NNW Ideal 19 1902CST 0.1 50 0 0 0.00K 0.00K Tornado (EF0)

Confirmed tornado heading towards Chadwick. Carroll County 3 S Mt Carroll 19 1910CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter several locations along Highway 78 south of Mount Carroll with trees and power lines down.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Whiteside County 1 S Unionville 19 1930CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported several 5 inch limbs down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

96 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northwest Stephenson County 1 NW Freeport 19 1945CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported several tree branches down in town.

A very unstable airmass on May 19, 2013 led to the development of severe thunderstorms that produced large hail and damaging winds. Temperatures were in the 80s with dewpoints around 70 with a mid level speed maximum rotating around the base of a developing upper low in the Plains states. This increased the deep layer shear during the afternoon and evening hours. Some of the storms produced golf to baseball size hail and 70 to 80 mph winds. A trained spotter reported baseball size hail knocked out sky lights at the Walmart store in northeast Keokuk. Golfball to baseball size hail was reported on the north end of the city, with nickel to quarter size hail on the south end of the city. A downburst produced wind damage in Benton county from the county line 3.5 miles southeast of Blairstown to 2.8 miles southeast of Shellsburg. There was a mile wide swath of near continuous damage to farm outbuildings, tree branches and some power poles. The greatest damage was from 3 miles south of Newhall, where a machine shed and garage were completely destroyed, to about 3 miles northwest of Atkins, where significant damage occurred to outbuildings. The emergency manager in Buchanan county reported a downburst with winds more than 70 mph struck Independence, Iowa. The northwest side of town sustained the most damage with trees down, power poles snapped and signs blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

Bureau County 2 WSW Milo 20 1957CST 2010CST 0 0 0.00K 0.00K Thunderstorm Wind (78EG)

Emergency manager reported a bowing storm produced extensive wind damage through Stark County, hitting the town of Bradford particularly hard. The storm continued into southern Bureau County, striking at least 3 farms northeast of Bradford in the vicinity of 300 North Avenue. Three pole barns and a grain bin were destroyed. A house and vehicle were damaged, and numerous trees were snapped. Note: The estimated wind gust of 78 knots is equivalent to 90 mph. Bureau County 1 N Princeton 20 2055CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)

Law enforcement reported trees blown down and blocking roadways in Princeton.

An occluding low pressure system was located across the eastern Dakotas on May 20, 2013. A cold front was approaching the area from the west during the evening hours, along with the nose of a mid level speed maximum arriving from northeast Kansas. A couple of storms produced ping pong size hail and winds over 80 mph. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Rock Island County 2 N Moline 26 1612CST 0 0 0.00K 0.00K Flash Flood A trained spotter reported water over 38th Street from 19th Avenue to the Avenue of the Cities in Moline.

Rock Island County 2 ESE Moline 26 1700CST 0 0 0.00K 0.00K Flash Flood Broadcast media reported water rapidly flowing over a road with a stalled vehicle at Morgan Park in Moline.

Rock Island County 2 ESE Moline 26 1713CST 0 0 0.00K 0.00K Flash Flood Broadcast media reported 7th Street and 19th Avenue in Moline was flooded with water flowing over the sidewalks.

Henry County 1 SSE Atkinson 26 1845CST 0 0 0.00K 0.00K Flash Flood Law enforcement closed Interstate 80 in both directions near Atkinson for several hours due to water flowing over the roadway.

Henry County 1 SSE Atkinson 26 1920CST 0 0 0.00K 0.00K Flash Flood Law enforcement reported that Interstate 80 remained closed at mile marker 26 in both directions due to runoff from fields and ditches flowing over the roadway near Atkinson. Mercer County 1 S Preemption 26 2015CST 0 0 0.00K 0.00K Flash Flood Law enforcement reported water over Highway 67 in several locations just south of Preemption.

97 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northwest

Low pressure was located in western South Dakota with a stationary front extending into eastern Missouri on May 26-27, 2013. North of the front temperatures were only in the 50s in eastern Iowa but to the south readings were in the 80s with dewpoints in the 60s. A strengthening low level jet impinging on the frontal boundary helped to trigger numerous training thunderstorms across the area. This led to flash flooding in many areas with roads closed. In Louisa county a trained spotter reported Highway 92 between Cotter and Columbus Junction had water flowing across it in many locations. One section had large debris washed onto the highway that included railroad ties and logs.

Warren County 2 WSW Monmouth 28 1640CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported several trees down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Warren County 2 WSW Monmouth 28 1640CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A trained spotter measured winds of 62 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mcdonough County 2 SSW Industry 28 2145CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Law enforcement reported power poles and lines down along a 2 to 3 mile stretch of Highway 67.

A nearly stalled frontal boundary across the area interacted with a rather strong upper air disturbance on May 28, 2013, which triggered severe thunderstorms in the moderate to high instability. Sufficient deep layer shear was in place along with a moist airmass. This led to reports of damaging wind, large hail and flash flooding. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Henderson County 3 NNW Big River St Forest 29 1300CST 3 N Bald Bluff 31 2359CST 0 0 0.00K 0.00K Flood

Heavy rains during the last week of May resulted in the Mississippi River at Gladstone and Burlington going above their respective major flood stage levels. Gladstone rose above its 14 foot major flood stage level during the early morning of May 31st. It remained above 14 feet through the end of the month. Burlington rose above its 18 foot major flood stage level during the afternoon of May 29th. It remained above 18 feet through the end of the month.

Hancock County 6 N Nauvoo 29 2000CST 3 NNW Durham 31 2359CST 0 0 0.00K 0.00K Flood

Heavy rains during the last week of May resulted in the Mississippi River at Keokuk, IA going above the major flood stage level of 19 feet during the evening of May 29th. It briefly fell about 1/4 of an inch below the major flood stage level during the early evening hours of May 30. It then rose above 19 feet and remained above it through the end of the month.

Heavy rains during the last week of May resulted in parts of the Mississippi River to reach and exceed their respective major flood stage level between May 29th and May 31st.

Rock Island County 2 ENE Taylor Ridge 30 1415CST 0 0 0.00K 0.00K Hail (1.00)

Henderson County 1 N Oquawka 30 1520CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)

The emergency manage reported trees and power lines down around Henderson county. The city of Oquawka particularly sustained significant damage. Note: The estimated wind gust of 60 knots is equivalent to 69 mph.

98 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northwest Hancock County 1 N Augusta 30 1534CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)

A trained spotter reported a roof blown off of a metal building in town and poles down in Augusta.

Note: The estimated wind gust of 53 knots is equivalent to 61 mph. Mercer County 2 NW Sunbeam 30 1545CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A trained spotter reported large trees down with winds estimated at 70 mph.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Rock Island County 1 N Andalusia 30 1545CST 1547CST 1.6 150 0 0 100.00K 0.00K Tornado (EF0)

An EF1 tornado touched down in Andalusia, IL around 445 pm CDT and traveled due north. This weak tornado crossed the Mississippi River and moved through eastern sections of Buffalo, IA. Wind speeds were estimated to be 95 mph. Some large trees were snapped and uprooted along the path. Some of the fallen trees fell onto houses.

Rock Island County 1 W Carbon Cliff 30 1555CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

A trained spotter measured 62 mph winds. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Whiteside County 1 S Portland Corners 30 1635CST 1636CST 0.57 25 0 0 0.00K 0.00K Tornado (EF0)

An EF0 tornado briefly touched down about 2 miles southwest of Prophetstown, IL around 535 pm CDT. Wind speeds were estimated to be about 70 mph. No damage was reported. Whiteside County 1 S Unionville 30 1640CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter measured a large 8 inch tree limb down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Whiteside County 1 NW Deer Grove 30 1650CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A trained spotter reported a large tree blown partially over.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jo Daviess County 1 W Galena 30 1655CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

A large 22 inch diameter tree was snapped a foot off the ground.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Whiteside County 1 E Sterling 30 1714CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

A large tree was down on power lines near town. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Stephenson County 1 NW Freeport 30 1717CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

The emergency manager reported some 6 to 8 inch tree limbs down in town.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

99 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northwest Stephenson County 1 NW Freeport 30 1717CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)

The emergency manager reported sustained winds of 50 to 60 mph for 10 minutes.

Note: The measured wind gust of 51 knots is equivalent to 59 mph. Whiteside County 1 E Sterling 30 1725CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported trees and power lines blown down.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Stephenson County 2 W Winneshiek 30 1730CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

The emergency manager reported a 1 foot diameter limb of a maple tree down near town. An adjacent field had a section of oats flattened. A cold front pushing into a very moist and unstable airmass triggered numerous severe thunderstorms on May 30, 2013. Deep layer shear was moderate to strong and freezing levels were in the 11-12k foot level, which was ideal for large hail. The storms produced damaging winds, large hail and several weak tornadoes. An EF1 tornado touched down in Andalusia, IL around 445 pm CDT and traveled due north. This weak tornado crossed the Mississippi River and moved through eastern sections of Buffalo, IA. Wind speeds were estimated to be 95 mph. Some large trees were snapped and uprooted along the path. Some of the fallen trees fell onto houses. In extreme northeast Missouri, wind gusts estimated to be 70 mph produced heavy tree damage throughout Scotland County. Several outbuildings were damaged and about 30 power poles were snapped. The tree damage was mainly located between Bible Grove and Memphis. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

ILLINOIS, South Alexander County 3 ESE Cairo 01 0000CST 21 0400CST 0 0 20.00K 0.00K Flood

Continuing from April into May, moderate flooding of the Ohio River occurred. At the Cairo river gage, the river crested at 49.96 feet on the evening of the 10th. This is about 10 feet over the flood stage of 40 feet. There was considerable flooding of low-lying fields and woodlands near the river. A state park and some river access roads were under water.

Alexander County Thebes 01 0000CST 1 W Thebes Jct 19 2030CST 0 0 10.00K 0.00K Flood

Continuing from April into May, moderate flooding occurred on the Mississippi River. At the Thebes river gage, the river crested at 39.6 feet early on the morning of the 6th. This was almost 7 feet above flood stage. There was considerable flooding of low-lying fields and woodlands near the river, including riverside parks and access roads.

Massac County Brookport 01 0000CST 2 ESE Metropolis 18 0900CST 0 0 2.00K 0.00K Flood

Continuing from April into May, minor flooding occurred on the Ohio River. There was minor flooding of low-lying fields and woodlands near the river, including parts of Fort Massac State Park in Metropolis. River access roads and boat ramps were flooded.

Pulaski County Olmsted 01 0000CST 19 1900CST 0 0 20.00K 0.00K Flood

Continuing from April into May, moderate flooding occurred on the Ohio River. At the Grand Chain river gage, the river crested at 49.8 feet on the morning of the 9th. This was about 8 feet over the flood stage of 42 feet. There was considerable flooding of low-lying fields and woodlands near the river. Park land and some river access roads were under water.

The Mississippi and Ohio Rivers remained above flood stage from April well into May. Heavy rainfall in the Missouri and upper Mississippi Valleys sent the Mississippi River well above flood stage. The Ohio River remained above flood stage due to frequent moderate rainfall events.

100 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, South Jackson County 2 WSW Murphysboro 01 0000CST 2 WNW Mt Carbon 13 2200CST 0 0 0.00K 0.00K Flood

Minor flooding continued on the Big Muddy River from April. Low-lying fields and woodlands were under water, including some riverside park land and river access roads. Wabash County 1 E Mt Carmel 01 0000CST 11 0900CST 0 0 0.00K 0.00K Flood

The flooded Wabash River continued to recede after cresting in late April. Moderate flooding occurred along the Wabash River around Mt. Carmel. The crest of 30.24 feet on April 28 was the 13th highest crest in records dating back to the late 1800's.

White County 1 SSE Carmi Muni Arpt 01 0000CST 2 SE Carmi 11 1700CST 0 0 0.00K 0.00K Flood

Minor flooding continued from April into May on the Little Wabash River. Low-lying fields and woodlands were under water, along with some parks and river access roads. White County Maunie 01 0000CST 13 1000CST 0 0 0.00K 0.00K Flood

The flooded Wabash River continued to recede after cresting in late April. Some low-lying fields and woodlands remained under water. Flooding of the Wabash, Little Wabash, and Big Muddy Rivers continued from April well into May. The flooding on the Big Muddy River was due to a combination of heavy rain and backwater from the Mississippi River. Heavy rainfall during the first week of May caused the Little Wabash to remain above flood stage. The Wabash River remained above flood stage due to a continuation of the very wet and cool spring pattern.

Jefferson County Mt Vernon 20 2325CST 0 0 0.00K 0.00K Hail (1.00)

Alexander County Cairo 21 0150CST 0 0 30.00K 0.00K Thunderstorm Wind (61EG)

Half of the roof of the Alexander County courthouse was blown off. There was no other damage nearby.

A squall line with embedded small bow echoes moved eastward from southeast Missouri across southern Illinois. A damaging wind event and a large hail event occurred in association with the bow echoes. The storms occurred in a region of strong southerly low-level wind flow ahead of a cold front crossing Missouri. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Perry County 3 SW Du Quoin 30 1338CST 0 0 0.00K 0.00K Funnel Cloud

Perry County 5 E Sunfield 30 1411CST 0 0 0.00K 0.00K Funnel Cloud

A rotating funnel cloud was seen by a trained spotter extending at least halfway to the ground.

Jefferson County 4 SW Scheller 30 1426CST 0 0 0.00K 0.00K Funnel Cloud

Massac County Metropolis 30 1850CST 2100CST 0 0 0.00K 0.00K Heavy Rain

Street flooding was reported.

101 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, South Massac County Metropolis 30 1858CST 1 NE Metropolis Muni Arpt 1901CST 0 0 50.00K 0.00K Thunderstorm Wind (52EG)

A severe storm crossed the Ohio River from Paducah, Kentucky. Numerous large tree limbs were blown down in Metropolis, from near Fort Massac State Park to a few miles north of Metropolis. The top of a pine tree fell onto a car. A few trees were uprooted. The damage path appeared to be several miles wide. One residence had shingles blown off the house.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Perry County Du Quoin 30 2000CST 2030CST 0 0 0.00K 0.00K Heavy Rain

Flooding of streets and roads was reported in the city. Clusters of thunderstorms moved north across southern Illinois. The storms occurred in a southwesterly flow of moist and moderately unstable air. The storms were enhanced by a 500 mb shortwave extending from the Ozarks to the Lower Mississippi Valley. A few of the storms produced strong winds and funnel clouds.

ILLINOIS, Southwest Brown County 4 N La Grange 01 0000CST 3 ESE Versailles 31 2359CST 0 0 2.00K 10.00K Flood

The Illinois River at LaGrange remained in flood at major flood levels in early May, dropping below flood stage on the 22nd at 0600 CST. The river then rose again into flood on the on the 28th and continued in flood into June.

Calhoun County 6 N Kampsville 01 0000CST 1 SSW Brussels 31 2359CST 0 0 2.00K 10.00K Flood

The Illinois River along the border of Calhoun County remained at major flood levels in early May, dropped below major levels for a while, then rose to major levels again at the end of May. Damage was limited to some closed roads and flooded farmland.

Greene County 7 NNW Hillview 01 0000CST 5 WNW Haypress 31 2359CST 0 0 2.00K 10.00K Flood

The Illinois River along the border of Greene County remained at major flood levels in early May, dropped below major levels for a while, then rose to major levels again at the end of May. Damage was limited to some closed roads and flooded farmland.

Jersey County 6 NNW Nutwood 01 0000CST 2 WNW Monument 31 2359CST 0 0 2.00K 10.00K Flood

The Illinois River along the border of Jersey County remained at major flood levels in early May, dropped below major levels for a while, then rose to major levels again at the end of May. Damage was limited to some closed roads and flooded farmland.

Pike County 5 ENE Chambersburg 01 0000CST 3 SSW Valley City 31 2359CST 0 0 2.00K 10.00K Flood

The Illinois River along the border of Pike County remained at major flood levels in early May, dropping below flood stage on the 23rd, then rose to major levels again at the end of the month. The river remained in flood into June.

The Illinois River remained at major flood levels in early May at LaGrange, Meredosia, Valley City, and Hardin. The river fell below flood stage on May 22 - 23, but then rose again on from May 27-28, and reached major levels by the end of May at Meredosia, Valley City and Hardin. The river remained in flood into June.

102 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Southwest Pike County 1 ESE East Hannibal 01 0000CST 4 SW Pleasant Hill 31 2359CST 0 0 2.00K 10.00K Flood

The Mississippi River was at major flood levels in early May, dropped a bit for the middle of the month, then rose to major flood levels again at the end of the month. Damage was limited to some flooded roads and flooded farmland.

The Mississippi River was at major flood levels in early May, dropped a bit for the middle of the month, then rose to major flood levels again at the end of the month. Damage was limited to some flooded roads and flooded farmland.

Brown County 5 S Mt Sterling 19 1040CST 0 0 0.00K 0.00K Hail (1.00)

A warm front lifted northward through the region during the day on May 19th. Storms developed along boundary as it lifted north. Then later a MCS developed over western Missouri and moved east across the state. There were several reports of damaging winds with this complex of storms through the early morning hours of May 20th.

Pike County 1 SSW East Hannibal 20 1830CST 1832CST 0 0 0.00K Thunderstorm Wind (65EG)

A line of severe thunderstorms moved through northern portions of Pike County. Considerable wind damage was noted along the I-72 corridor from the Mississippi River to the I-72/I-172 interchange. There was a great deal of tree damage on both sides of the road where it extended from the eastern bank of the river to the levee. Varying sizes of limbs and branches were broken, twisted and dangling. The damage extended well beyond the levee. Three residences on the north side of the interstate near the first Illinois exit had minor roof damage. Further east, the winds destroyed a large machine shed at a farmstead. The next farm along the north side of the road suffered the worst damage. This property consisted of 7 small grain bins and 4 large ones. The smaller bins are set to the west of the larger ones. All 11 grain bins were dented on the southwest side to some degree. By far the worst was the southwestern most large grain bin. It was completely crushed to the point where it is a total loss. The interstate bends to the northeast just past the farm with the grain bins. There was some tree damage to the next two residences on the south side of the interstate prior to the interchange with I-172.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Adams County Fall Creek 20 1832CST Payson 1835CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Thunderstorm winds caused minor damage to a garage in Payson. Also, several power poles were snapped and a couple of trees uprooted in Payson. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Pike County 1 SSW Hull 20 1835CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Adams County 1 NW Liberty 20 1845CST 0 0 0.00K 0.00K Hail (1.00)

Macoupin County 1 SW Plainview 20 2032CST 5 S Shipman 2035CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

Thunderstorm winds blew down several large tree limbs in Plainview.

Note: The measured wind gust of 50 knots is equivalent to 58 mph. Macoupin County 1 N Bunker Hill 20 2108CST 0 0 0.00K 0.00K Hail (1.00)

103 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Southwest Macoupin County 1 SW Staunton 20 2110CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG) Thunderstorm winds blew off the decorative steel portion of a grocery store roof in Staunton. The main roof remained intact with just minor leaks into the store below. Also, several trees and power lines were blown down around town.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Macoupin County 1 NW Dorchester 20 2110CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Thunderstorm winds snapped off a two foot diameter tree at its base.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Macoupin County 1 WNW Mt Olive 20 2112CST 2113CST 0 0 0.00K 0.00K Thunderstorm Wind (91EG)

Thunderstorm winds caused minor damage to the fire station roof. A small shed behind the fire station was destroyed. Also, several large trees were uprooted and a couple others were snapped off. A small ham radio tower behind a house was bent.

Note: The estimated wind gust of 91 knots is equivalent to 105 mph. Macoupin County Mt Olive 20 2114CST 2115CST 0.2 75 0 3 0.00K 0.00K Tornado (EF2)

A tornado touched down in the downtown portion of Mt. Olive and traveled to the east. The damage path was 4 blocks long and ranged from 50 to 75 yards wide. The second story of a brick building was blown off. Large sections of several roofs were blown 2 blocks to the north. A historic 2 story home had the roof blown off and windows were blown out of several homes and businesses. Three people sustained minor injuries.

Madison County Edwardsville 20 2120CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Macoupin County 1 NNE Atwater 20 2125CST 3 NE Hornsby 21 0300CST 0 0 0.00K 0.00K Flash Flood

Up to 4 inches of rain fell in a short amount of time causing flash flooding. Several roads were flooded, especially in Carlinville and Girard. Madison County Maryville 20 2135CST 0 0 0.00K 0.00K Hail (0.75)

Randolph County Chester 20 2306CST 2308CST 0 0 0.00K 0.00K Hail (1.00)

A line of severe storms moved through the region. There were numerous reports of large hail and damaging winds, as well as a couple of tornadoes and flash flooding.

Adams County 4 N Meyer 27 2145CST 1 ENE Quincy 31 2359CST 0 0 2.00K 10.00K Flood

The Mississippi River along the border of Adams County continued at major flood levels into early May. The river gradually fell and dropped below flood stage on the 23rd, only to rise over flood stage on the 27th and hit major flood levels again at the end of May. Major flooding continued into early June.

The Mississippi River along the border of Adams County continued at major flood levels in early May. The river gradually dropped to below flood stage on the 23rd, but rose above flood stage on the 27th and hit major flood levels again at the end of the month. Damage was limited to some flooded roads and flooded farmland.

104 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Southwest Calhoun County Hamburg 30 1610CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down a large tree on the south side of Hamburg.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Monroe County 3 W Hecker 30 1715CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds snapped a large tree off at the ground. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Randolph County Menard 30 1715CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down several large tree limbs on the north side of Chester.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. St. Clair County 1 WSW Freeburg 30 1725CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down a 12 inch diameter tree limb which fell on top of a building at a car dealership.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. St. Clair County 1 SSE Willard 30 1728CST (BLV)Scott Afb Belle 1729CST 0 0 0.00K 0.00K Thunderstorm Wind (58MG)

Thunderstorm winds blew over a large tree in O'Fallon. Also, the ASOS unit at Scott Air Force Base recorded at 67 MPH wind gust with the storms. Note: The measured wind gust of 58 knots is equivalent to 67 mph. St. Clair County Old Marissa 30 1733CST 1735CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down several medium to large trees as well as several power lines around town. A few shingles were blown off of a couple of homes. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Washington County 3 N Biddleborn 30 1740CST 1 ESE Venedy 1745CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds damaged several sheds in an area from just east of St. Libory to near Venedy.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Washington County Okawville 30 1755CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down a couple of trees as well as numerous tree limbs around town. Also, several homes sustained minor shingle damage. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Clinton County Trenton 30 1803CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down several large trees in town. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Bond County Greenville 30 1820CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down numerous large tree limbs around town.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

105 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Southwest Montgomery County 3 NNW Donnellson 30 1830CST 1 NW Hillsboro 1832CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down a large walnut tree about 6 miles south of Taylor Springs. Also, several large trees were blown down around Hillsboro. One tree fell on top of an unoccupied vehicle, causing major damage.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Montgomery County 2 N Honey Bend 30 1839CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down several large tree limbs. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Macoupin County 3 NNW Nilwood 30 1845CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG) Girard Thunderstorm winds blew down several large trees along Emmerson Airline Road.

A strong storm system was approaching the region. Several rounds of thunderstorms moved through from the afternoon hours of May 30th through late morning on May 31st. There were numerous reports of damaging winds, large hail and flash flooding with these storms. A more significant round of storms moved through the region during the evening hours of May 31st. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Madison County 1 NW Oldenburg 31 1929CST 2 NNW Edwardsville 1937CST 8.63 150 0 0 0.00K 0.00K Tornado (EF3)

The tornado crossed the Mississippi River from St. Louis County Missouri into Madison County Illinois, about 1.1 miles northwest of the intersection of Illinois Routes 3 and 203. It blew down several trees once it made landfall. As it traveled to the east northeast, it took about a quarter of the roof off of a business on the northwest corner of the intersection of Illinois Route 3 and Piasa Lane. On the east side of Illinois Route 3, a gas station sustained minor damage. Damage in this area was rated EF1. Further northeast, several power poles were snapped along S. Delmar Avenue. Just south of the intersection of Robbins Road and Illinois Route 111, 5 large wooden power poles were snapped and there was a convergent pattern in the tree damage to the north. As it crossed the far southern portions of South Roxana, there was minor damage to several homes, then the tornado crossed Highway 255. It buckled in a wall on a large steel framework building and twisted the roof steel girders just south of Old Alton Edwardsville Road, about a quarter of a mile east of the intersection of Old Alton Edwardsville Road and Section Line Road. On the same property, another very large and well-built wood framed metal sided storage building was completely destroyed by the tornado. Damage was rated EF3 in this location. The tornado continued to the northeast crossing Illinois Route 143 just north of the intersection with N. University Dr. Before lifting and dissipating, the tornado crossed Illinois Route 159, just south of Fox Creek Golf Club and snapped off several large fir trees as well as a wooden power pole. The tornado path length in Madison County was 8.6 miles with a max path width of 150 yards. The damage in this segment was rated EF3 with max wind speeds of 160 MPH. Overall, the entire tornado path length was 10.6 miles with a max path width of 150 yards. The tornado was rated EF3 with max wind speeds of 160 MPH.

Madison County 1 SSW Mitchell 31 1930CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Thunderstorm winds blew down a large tree blocking the door to a house, trapping the occupant briefly. There was only minor structural damage to the house. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Madison County 2 E Oldenburg 31 1931CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

Thunderstorm winds caused minor roof damage to a home at the intersection of New Poag Road and Illinois Route 111.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Madison County 1 SE Bluff Jct 31 1936CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG) Thunderstorm winds blew down several very large trees around the 1000 block of both Grand Avenue and Randle Street near North Elm Street. One of the trees went through the roof of a house on Grand Avenue causing major damage. Another large tree on Randle Street pulled down several power lines. Note: The estimated wind gust of 65 knots is equivalent to 75 mph.

106 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Southwest Madison County (ALN)Stl Rgnl Arpt A 31 1938CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Macoupin County Gillespie 31 1949CST 1 N East Gillespie 1952CST 1.47 150 0 0 0.00K Tornado (EF2)

The tornado began on the west side of Gillespie, causing minor damage to an apartment complex on the southwest side of the intersection of Broadway Street and LJ Avenue. It blew out several windows on one of the apartment buildings. It then caused major damage to the north end of a brick gymnasium at Gillespie High School. The damage to the gymnasium was rated EF2. Then it proceeded to travel northeast, blowing the roof off of a house just northeast of the high school. Also, a large pine tree was snapped off at the base next to the house. The tornado continued to the northeast. There was extensive damage to trees and roofs along a west southwest to east northeast path through the town. The tornado destroyed a garage at the corner of Henry Street and Fulton Street. The tornado lifted and dissipated just north of the intersection of Harding Avenue and Illinois Route 16. The tornado path length was 1.5 miles with max path width of 150 yards. The damage was rated EF2 with max wind speeds of 115 MPH.

Madison County 1 ENE Barnett Siding 31 1950CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG) 2 NE Hamel Thunderstorm winds blew over several tractor trailers along Interstate 55 between mile markers 31 and 28 on the southbound side of the highway. No injuries were reported. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Macoupin County 2 W Virden 31 1958CST 2004CST 0 0 0.00K 0.00K Thunderstorm Wind (78EG)

A wide swath of wind damage occurred over northern Macoupin County. Numerous trees and tree limbs were blown down. Also, an outbuilding on the west side of Virden had part of its roof blown off.

Note: The estimated wind gust of 78 knots is equivalent to 90 mph. Madison County 1 NNW Alhambra 31 2000CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Thunderstorm winds blew down several trees around town as well as several fences.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Montgomery County 4 SSW Waggoner 31 2002CST 2006CST 4.26 50 0 0 0.00K Tornado (EF1)

A tornado touched down half a mile north of the intersection of County Road 100E and 2200N or 3.5 miles south-southwest of Waggoner, Illinois. Several large tree limbs 6 to 10 inches in diameter were blown down by the tornado. The tornado path at this location was 30 yards wide. The tornado traveled northeast and damaged one barn and a few outbuildings on Goby Avenue, about 1.5 miles west of I-55. The roof of two outbuildings were uplifted and tossed 100 to 150 yards to the northeast. Another outbuilding was severely damaged on Coalfield Avenue, half a quarter of a mile west of I-55. Damage intensity was rated EF1. Debris from this machine shed was tossed across a corn field and across I-55. The tornado then crossed I-55, blowing over three tractor trailers. No injuries were reported. The tornado then damaged a third farmstead on County Road 2500N approximately a quarter of a mile east of I-55. Windows were blown inward on a two story farm home and two machine sheds were severely damaged. The damage intensity was rated EF1 and damage was 40 yards wide. The tornado continued to move northeast and downed large tree branches 6 to 10 inches in diameter on East Waggoner Road, about 2 miles east southeast of Waggoner, Illinois. The tornado then lifted and dissipated. The tornado path length was 4.3 miles with a max path width of 50 yards. The damage was rated EF1 with max wind speeds estimated between 90 and 100 MPH.

Montgomery County 5 NNW Farmersville 31 2004CST 2005CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

107 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Southwest

A wide swath of wind damage occurred over far northern Montgomery County. Several outbuilding sustained minor to moderate damage. Five grain bins were blown off their foundations into a field on Thomasville Trail, about half a mile west of I-55. Also, several large trees and numerous tree limbs were blown down.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Bond County Sorento 31 2005CST 2 W Durley 2011CST 0 0 0.00K 0.00K Thunderstorm Wind (78EG)

Thunderstorm winds snapped several power poles in Sorento. Just north of Greenville, several large trees were snapped and numerous tree limbs were blown down. Note: The estimated wind gust of 78 knots is equivalent to 90 mph. St. Clair County 1 SSW O Fallon 31 2015CST 0 0 0.00K 0.00K Hail (1.00)

Fayette County 1 N Vandalia 31 2040CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds blew down a large tree limb onto U.S. Highway 51 about a mile north of Vandalia.

Storms developed along an outflow boundary that was laid out along the I-70 corridor. The storms produced wind damage, large hail as well as 9 tornadoes. Two of the tornadoes were rated EF3 as they moved through the St. Louis metro area. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

INDIANA, Central Vigo County 1 NNE Allendale 09 1910EST 0 0 3.00K Thunderstorm Wind (56EG)

Trees were reported down near the intersection of US Highway 41 and Carlisle Street due to damaging thunderstorm wind gusts. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Vigo County 1 WSW Allendale 09 1914EST 1915EST 0.14 20 0 0 2.00K Tornado (EF0)

The tornado touchdown occurred along East Curry Road near Hultz Road, about five miles south of Terre Haute. The tornado was observed by a storm spotter and caused damage to several trees. It was rated an EF-0 with associated winds around 80 mph.

A dead, downed tree after the area was impacted by an EF-0 tornado. Photographer unknown.

108 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

INDIANA, Central Vigo County 1 NW Riley 09 1924EST 1925EST 0.15 20 0 0 1.50K Tornado (EF0)

The Riley Fire Department reported a tornado traveling northwest through a field, west of the town of Riley. This tornado leveled a storage shed and downed several tree limbs at a residence off of East Gross Road, near State Road 159. This tornado was rated an EF-0 with associated winds around 80 mph.

An EF-0 tornado touched down in a field, west of the town of Riley. Bartholomew County 1 WNW East Columbus 09 2225EST 0 0 2.00K Thunderstorm Wind (52EG)

A tree was reported down on Smith Street in Columbus due to damaging thunderstorm wind gusts. Tree limbs were elsewhere in the county. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Decatur County 2 SSE New Pt 09 2307EST 2309EST 0 0 0.00K Hail (0.88)

A thunderstorm squall line produced two small, brief tornadoes Wednesday evening near Terre Haute. The first touchdown occurred near 815 PM EDT along East Curry Road near Hultz Road about 5 miles south of Terre Haute. The tornado was observed by a storm spotter and caused damage to several trees. The tornado was rated an EF0 with winds around 80 mph. A second tornado from the same storm occurred near 825 PM EDT in Riley, about 5 miles southeast of Terre Haute. This tornado was observed by Riley volunteer fireman in a field just west of their fire station. The second tornado destroyed a small shed and downed several tree limbs. This tornado was rated an EF0 with associated winds also around 80 mph. A cluster of showers and thunderstorms also produced a singular wind damage and hail report from central Indiana.

Daviess County 1 SSW Black Oak 16 1027EST 1430EST 0 0 1.00K 1.00K Flash Flood

Water was reported over US Highway 50, east of Washington, and also over State Road 57, south of Washington, due to thunderstorm heavy rainfall. A cluster of thunderstorms trained over southwest portions of central Indiana on the 16th of May. As the storms pushed northward, stratiform rain of moderate intensity took its place. At times, additional thundershowers were embedded within the stratiform area during the flash flood warning. Reports of over two inches of rain fell in some areas within a short amount of time. One observation of flash flooding was reported from Daviess County.

109 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

INDIANA, Central Fountain County 1 W Range Rd 21 0110EST 0 0 15.00K Thunderstorm Wind (56EG)

A barn was destroyed and trees were downed in this location due to damaging thunderstorm wind gusts.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Clay County 1 S Brazil 21 0119EST 0 0 4.00K Thunderstorm Wind (56EG)

Multiple trees were reported down in the area due to damaging thunderstorm wind gusts.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Montgomery County 1 S New Richmond 21 0125EST 0 0 4.00K Thunderstorm Wind (56EG)

Trees were reported down in this location due to damaging thunderstorm wind gusts.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Putnam County 1 W Barnard 21 0129EST 0131EST 1.05 100 0 0 45.00K Tornado (EF0)

Surveying in the Roachdale area, north of Greencastle, yielded evidence of an EF-0 tornado. It occurred around 2:30 A.M. EDT just south of Roachdale where barn, shed, and tree damage were observed, suggesting rotating winds of up to 85 mph. An irrigation system was also flipped. This tornado was on the ground for approximately one mile in length and 1 to 2 minutes in time.

A barn incurred this damage as an EF-0 tornado impacted the area. Photographer unknown. Hendricks County 1 WNW North Salem 21 0134EST 0135EST 0.13 30 0 0 10.00K Tornado (EF0)

One weak tornado occurred west of Brownsburg near North Salem. Toppled trees, snapped limbs, light damage to a barn, and minor roof damage revealed evidence of rotation in the winds and damage consistent with an EF0 tornado with winds up to 85 mph.

110 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

INDIANA, Central

Some minor barn damage occurred as an EF-0 tornado impacted the area near North Salem. Photographer unknown. Daviess County 1 S Washington 21 0145EST 0 0 20.00K Thunderstorm Wind (52EG)

Roof damage was reported in downtown Washington due to damaging thunderstorm wind gusts. One of the roofs was only 2 years old and debris from it flew three blocks. Some damage to old trees and structurally unsound out-buildings and canopys were also noted. Thunderstorm wind damage was observed from Southwest 5th Street to Northeast 21st Street.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Owen County 1 NE Freedom 21 0147EST 0 0 15.00K Thunderstorm Wind (56EG)

Trees were reported down, along with some structural roof damage, due to damaging thunderstorm wind gusts. Power outages were also noted, along with dime sized hail. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Daviess County 2 ESE Washington 21 0150EST 0 0 3.00K Thunderstorm Wind (52EG)

Tree damage was reported in this location due to damaging thunderstorm wind gusts.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Daviess County 1 NW Odon 21 0151EST 0 0 3.00K Thunderstorm Wind (52EG)

Tree damage was reported in this location due to damaging thunderstorm wind gusts.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Greene County 3 E Bloomfield 21 0155EST 0 0 10.00K Thunderstorm Wind (52EG)

Some minor tree damage was noted across portions of Greene County due to damaging thunderstorm wind gusts.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Carroll County 1 N Bringhurst 21 0200EST 0 0 7.00K Thunderstorm Wind (56EG)

Trees and power lines were reported down due to damaging thunderstorm wind gusts.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

111 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

INDIANA, Central Hendricks County Hazelwood 21 0200EST 0 0 5.00K Thunderstorm Wind (56EG)

Trees were reported down in Hazelwood due to damaging thunderstorm wind gusts.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Hendricks County 1 E Cartersburg 21 0200EST 0 0 5.00K Thunderstorm Wind (56EG)

Trees were reported down near Cartersburg due to damaging thunderstorm wind gusts.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Morgan County 1 NW Gasburg 21 0201EST 0 0 1.00K Thunderstorm Wind (52EG)

Power lines were reported down near Echo Lake due to damaging thunderstorm wind gusts.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Monroe County 1 SW Harrodsburg 21 0202EST 0 0 10.00K Thunderstorm Wind (56EG)

Tree and power line damage was reported mainly from the southern part of Monroe County due to damaging thunderstorm wind gusts. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Boone County 1 ESE Whitestown 21 0205EST 0 0 5.00K Thunderstorm Wind (56EG)

Trees were reported down in this location due to damaging thunderstorm wind gusts.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Hendricks County 1 SE Brownsburg 21 0205EST 0 0 6.00K 0.00K Thunderstorm Wind (56EG)

Trees and limbs were reported down in Brownsburg due to damaging thunderstorm wind gusts.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Morgan County 1 SE Paragon 21 0205EST 0 0 1.00K Thunderstorm Wind (56EG)

A large tree was reported down in this location due to damaging thunderstorm wind gusts.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Carroll County 1 E Burlington 21 0207EST 0 0 3.00K Thunderstorm Wind (56EG)

Two chicken houses were destroyed in this location due to damaging thunderstorm wind gusts.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Hamilton County Sheridan 21 0214EST 0 0 10.00K 0.00K Thunderstorm Wind (56EG)

Multiple trees and power lines were reported down in this location due to damaging thunderstorm wind gusts.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Hamilton County 1 NW Noblesville 21 0220EST 0 0 7.00K 0.00K Thunderstorm Wind (56EG)

Trees were reported down due to damaging thunderstorm wind gusts. There was also wind damage done to a CVS store and a Speedway gas station. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

112 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

INDIANA, Central Hamilton County 1 W Cicero 21 0220EST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)

Trees and limbs were reported down in this location due to damaging thunderstorm wind gusts.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Marion County 3 WSW Acton 21 0220EST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)

Trees and limbs were downed near the intersection of Franklin and Shelbyville Roads due to damaging thunderstorm wind gusts. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Hamilton County 1 S Fishers 21 0230EST 0 0 0.00K Thunderstorm Wind (54MG)

A measured thunderstorm wind gust of 62 mph was observed in this location.

Note: The measured wind gust of 54 knots is equivalent to 62 mph. Hamilton County 1 NW Home Place 21 0230EST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

A three inch diameter tree was snapped at 116th Street and Springmill Road due to damaging thunderstorm wind gusts. This report was received via twitter. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Tipton County 3 NNW Hobbs 21 0230EST 0 0 1.00K Thunderstorm Wind (56EG)

A tree was reported down at the intersection of County Roads 100 North and 200 East due to damaging thunderstorm wind gusts. Winds were estimated at 65 mph. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Madison County Edgewood 21 0245EST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

A tree was reported down on State Road 32, near Windsor Way, due to damaging thunderstorm wind gusts.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Shelby County 1 N Geneva 21 0252EST 0 0 8.00K Thunderstorm Wind (52EG)

A two foot diameter tree was blown onto a vehicle due to damaging thunderstorm wind gusts.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Delaware County 2 S Daleville 21 0257EST 0 0 3.00K Thunderstorm Wind (56EG)

Tree damage was reported from the intersection of County Roads 950 West and 700 South due to damaging thunderstorm wind gusts. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Decatur County 3 W Westport 21 0302EST 0 0 2.00K Thunderstorm Wind (52EG)

A couple trees were downed in southwest Decatur County due to damaging thunderstorm wind gusts.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Rush County 1 S Rushville 21 0302EST 0 0 15.00K 0.00K Thunderstorm Wind (56EG)

Trees were reported down, with at least one down on a vehicle, due to damaging thunderstorm wind gusts.

113 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

INDIANA, Central

A large line of storms swept across central Indiana overnight causing sporadic damage in many areas. One weak tornado occurred west of Brownsburg near North Salem. Toppled trees, snapped limbs, and damage to a barn and house revealed evidence of rotation in the winds and damage consistent with an EF0 tornado. Surveying in the Roachdale area north of Greencastle also yielded evidence of an EF0 tornado, where structural and tree damage was observed. Additional damage survey work in southern Hendricks County southwest of Plainfield revealed two separate paths of straight-line wind damage paralleling both sides of US 40 east of Stilesville. Damage in Hazelwood, the southern-most of the two tracks, also offered evidence of a microburst, intense damage over a short and narrow path. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Madison County 2 SW Dundee 27 1645EST 0 0 18.00K Thunderstorm Wind (56EG)

Three power poles were broken and several others were leaning near the intersection of County Roads 500 West and 1000 North due to damaging thunderstorm wind gusts. One or more of the poles were described as being major poles.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Tipton County 2 SSW Tipton 27 1928EST 2130EST 0 0 1.00K 0.50K Flood

Road flooding was reported from the southern part of the county due to thunderstorm heavy rainfall. Some roads were impassable. Isolated thunderstorms on the afternoon of the 27th developed in the vicinity of a warm front over northern portions of central Indiana. Gusty winds associated with one of the storms as it moved across Madison County took down trees, power poles and power lines. The town of Elwood was impacted.

Knox County Vincennes 30 1637EST 0 0 6.00K 0.00K Thunderstorm Wind (61EG)

A solid, mature maple tree was uprooted at Hart and 5th Streets due to damaging thunderstorm wind gusts. Several other trees were down in the same area. Scattered thunderstorms developed across western portions of Indiana and eastern portions of Illinois during the late afternoon of May the 30th. One singular wind damage report was received from Knox County as a strong storm moved north over Vincennes. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

INDIANA, Northeast La Porte County 2 WSW Michigan City 28 2027CST 2028CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

A trained spotter reported a few large tree branches were blown down by thunderstorm winds.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. La Porte County 1 NNE La Crosse 28 2053CST 2054CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Law enforcement officials reported widespread tree damage across much of La Porte county. In addition, power poles were blown down along US-421, north of Lacrosse. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. St. Joseph County 2 E (SBN)Michiana Arpt S 28 2210EST 2211EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A 60 mph wind gust was estimated a broadcast meteorologist. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. St. Joseph County Sbn Michiana Arpt 28 2211EST 2212EST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)

The Automated Surface Observation System at the South Bend Regional Airport recorded a 60 mph wind gust.

Note: The measured wind gust of 52 knots is equivalent to 60 mph.

114 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

INDIANA, Northeast St. Joseph County 2 ENE (SBN)Michiana Arpt S 28 2212EST 2213EST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)

The public estimated a 62 mph wind gust. Note: The measured wind gust of 54 knots is equivalent to 62 mph. St. Joseph County 1 N South Bend 28 2215EST 2216EST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

A trained spotter reported multiple power poles were snapped in the middle. In addition, several trees were uprooted.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. St. Joseph County 4 NE Woodland 28 2226EST 2227EST 0 0 0.00K 0.00K Thunderstorm Wind (56MG)

A trained spotter recorded a 64 mph wind gust. Note: The measured wind gust of 56 knots is equivalent to 64 mph. St. Joseph County 1 SE Mishawaka 28 2230EST 2231EST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

A trained spotter reported a portion of a large tree was snapped near the base of the tree along North Main Street.

A cluster of thunderstorms developed southwest of Chicago during the mid evening hours and moved rapidly east, taking on a bowing structure as it entered northwestern Indiana. Wind damage was reported across La Porte and St. Joseph counties before the line rapidly began weakening as it encountered a more stable air mass. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. St. Joseph County 1 E Granger 31 0137EST 0138EST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Local media outlets reported several trees and tree branches snapped along a three block wide swath in Granger.

A line of strong to severe thunderstorms developed in central and northern Illinois during the evening hours of May 30th. This line moved east into northwestern Indiana, but was weakening as it arrived. One thunderstorm produced local damage in the Granger area. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Kosciusko County 1 E Pierceton 31 2030EST 2031EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported a six to eight inch diameter, 20 foot long tree branch down across County Road 350 South, near State Route 13. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cass County 3 S Leases Corner 31 2140EST 4 SSW Royal Center 2359EST 0 0 0.00K 0.00K Flood

Emergency management officials reported three to 6 inches of water on many roads between State Routes 16 and 17, north of County Road 400 North in the Royal Center area. Local rain gauges indicates upwards of 3 inches of rain fell during the evening hours. Heavy rain persisted into June 1st. A convective complex developed across central Illinois late in the afternoon of May 31st, and grew slightly upscale into northwest Indiana late in the evening, producing isolated severe weather and some flooding issues. The initial complex weakened and produced an outflow boundary across southern third of the area from the late evening hours of the 21st into the morning hours of June 1st. Convection continued to regenerate north of this outflow boundary in west to east fashion beginning to set the stage for flash flooding concerns in portions of northern Indiana. Events and further details will also be listed in the June 2013 Storm Data.

115 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

INDIANA, Northwest Jasper County 4 WNW Pleasant Ridge 03 1618CST 1619CST 0 0 0.00K 0.00K Hail (0.75)

Newton County Lake Vlg 03 1653CST 1654CST 0 0 0.00K 0.00K Hail (0.88)

Strong storms produced hail across parts of northwest Indiana during the afternoon and evening of May 3rd.

Lake County Whiting 20 2241CST 2242CST 0 0 0.00K 0.00K Hail (0.88)

Porter County Portage 20 2300CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

A tree was blown down. Strong to severe thunderstorms moved across parts of northwest Indiana during the late evening of May 20th. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Lake County 2 NNW Griffith 30 1405CST 1406CST 0 0 0.00K 0.00K Hail (1.00)

Lake County Highland 30 1406CST 1407CST 0 0 0.00K 0.00K Hail (0.88)

Penny to nickel size hail was reported near Ridge Road and Indianapolis Boulevard.

Lake County 2 NE Highland 30 1412CST 1413CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported near Interstate 80/94 and Cline Avenue.

Strong to severe thunderstorms moved across parts of northwest Indiana during the afternoon and evening hours of May 30th.

Newton County Mt Ayr 31 1730CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Numerous tree limbs were blown down. Power poles were leaning over.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Newton County 2 WNW Mt Ayr 31 1915CST 2359CST 0 0 0.00K 0.00K Flash Flood

Around two feet of flowing water was reported in Mount Ayr. See StormData for June, 2013 for continuation of this flash flood event. Benton County 1 NNW Templeton 31 1930EST 1932EST 0.5 20 0 0 0.00K 0.00K Tornado (EF0)

A tornado touched down in an open field near County Roads 500S and 600E. The tornado was on the ground for about a half mile and was captured on video. There was no reported damage.

116 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

INDIANA, Northwest Newton County Kentland 31 2235CST 0 0 2.00K 0.00K Thunderstorm Wind (60EG)

Several trees and power lines were blown down. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Newton County Brook 31 2243CST 0 0 2.00K 0.00K Thunderstorm Wind (60EG)

Trees and power lines were blown down. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Jasper County 1 N Rensselaer 31 2255CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)

A semi was blown over on the north side of Rensselaer. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Jasper County Rensselaer 31 2255CST 0 0 5.00K 0.00K Thunderstorm Wind (60EG)

Widespread trees and power lines were blown down. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Jasper County Rensselaer Jasper Ar 31 2255CST 0 0 0.00K 0.00K Thunderstorm Wind (55MG) Note: The measured wind gust of 55 knots is equivalent to 63 mph.

Benton County 1 W Earl Park 31 2330EST 0 0 0.00K 0.00K Thunderstorm Wind (62MG)

Trees were blown down. Note: The measured wind gust of 62 knots is equivalent to 71 mph. Benton County 1 W Boswell 31 2330EST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)

Trees were blown down and a shed was damaged. Strong to severe thunderstorms moved across parts of northwest Indiana during the afternoon and evening hours of May 31st. Note: The estimated wind gust of 60 knots is equivalent to 69 mph.

INDIANA, Southeast Union County 3 E Kitchell 16 1640EST 1740EST 0 0 0.00K 0.00K Heavy Rain

Minor flooding from a drainage ditch was affecting State Line Road near State Route 227.

Showers and thunderstorms developed near a stationary front early in the day. Multiple storms moved over the same locations during the afternoon. This caused heavy rainfall to occur.

INDIANA, Southwest Gibson County 1 WSW Giro 01 0000CST 04 1000CST 0 0 0.00K 0.00K Flood

The flooded White River continued to recede after moderate flooding occurred in late April. See the April report for details of that flooding. Gibson County East Mt Carmel 01 0000CST 2 ENE Skelton 11 0800CST 0 0 0.00K 0.00K Flood

The flooded Wabash River continued to recede after moderate flooding occurred in late April. The crest of 30.24 feet on April 28 was the 13th highest crest in records dating back to the late 1800's. Extensive flooding took place in East Mt. Carmel, Indiana and western Gibson County. See the April report for details of that flooding.

117 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

INDIANA, Southwest Pike County Petersburg 01 0000EST 1 NNE Bowman 03 0200EST 0 0 0.00K 0.00K Flood

The flooded White River continued to recede after moderate flooding occurred in late April. See the April report for details of that flooding. Posey County New Harmony 01 0000CST 13 1000CST 0 0 0.00K 0.00K Flood

The flooded Wabash River continued to recede after cresting in late April. Moderate flooding occurred along the Wabash River. Low-lying fields and woodlands were underwater. Parts of northern New Harmony began to flood, and sandbagging became necessary in town. Harmonie State Park was closed. The White and Wabash Rivers fell below flood stage early in May as the wet spring pattern abated somewhat.

IOWA, Central

IAZ004>006-015- Calhoun - Emmet - Humboldt - Kossuth - Palo Alto - Pocahontas - Webster - Winnebago 023>024-034>035 01 1100CST 02 0900CST 0 0 850.0K 0.00K Heavy Snow

IAZ007-016-025> Appanoose - Butler - Cerro Gordo - Clarke - Decatur - Franklin - Hancock - Jasper - Lucas - Marion - 027-048>049-060> Marshall - Monroe - Polk - Story - Warren - Wayne - Worth - Wright 061-073>074-083> 02 0100CST 085-094>096 0900CST 0 0 1.975M 0.00K Heavy Snow

A strong cold front passed through the state and had become stationary over southeast Iowa during the day on the first. A band of precipitation developed behind the front and set up over northwest Iowa. During the morning, an area of thunderstorms developed over Nebraska and lifted northeast along the line. As the colder air moved in and the thunderstorms approached, a mixture of rain and snow changed to snow with quick accumulation of 5 to 7 inches over the far northwest part of the CWA. Ringsted in Emmet County reported 6.5 inches before 1700 CST. Much of the snow accumulated on grassy areas, though an accumulation of 2 to 3 inches of slush was reported. Another round of thunderstorms developed during the evening and continued through much of the night. A band of snow fall across southwest into north central Iowa. North central Iowa was hit the hardest with 6 to 11 inches of snow. The snow caused numerous power outages as the heavy wet snow stuck to trees and power lines. Mason City was hardest hit with several thousand outages. Sporadic outages were reported over the northwest half of the state due to the combination of wet snow and north winds of 20 to 35 MPH. There were also numerous traffic accidents reported as roads became slick with slushy snow and ice pellet accumulations. There were several school delays and some cancellations, however not as numerous as would have been the case during mid winter. The main problem with roads was the slush. Though much of the snow melted, what was left was of a wet cement consistency. The combination of the dense snow and some road coverage lead to the high number of accidents. A state record for heavy snowfall so late in the season was set as both Britt and the the Northwood area received 11 inches of snow. Algona was was close behind with 10.5 inches of snow. The previous record May snowfall in Iowa was 10 inches at LeMars on 28 May 1947. Some of the other higher totals included 9.7 inches at Northwood in Worth County, 7.3 inches in Palo Alto County north of Whittenmore, 7 inches in Butler County at Dumont, Calhoun County at Rockwell City, Worth County at Manly, and Ringsted in Emmet County. Mason City in Cerro Gordo County received 6.5 inches, with a little over 6 inches reported in Webster County northwest of Badger.

Crawford County 1 S Schleswig 09 1358CST 0 0 0.00K 0.00K Funnel Cloud

Dallas County 2 NNW Kennedy 09 1535CST 0 0 0.00K 0.00K Funnel Cloud

Polk County 1 ESE Ft Des Moines 09 1837CST 0 0 0.00K 0.00K Funnel Cloud

Reported by the Des Moines Police. An upper level cold core low pressure system passed over the state on the 9th. There was limited instability with around 125 J/kg of 0 to 3 km CAPE available. Showers and isolated thunderstorms developed during the afternoon. Funnel clouds were observed in Crawford County in the Schleswig area by mid afternoon. Scattered reports came in through the early evening hours. A funnel cloud was observed west of the Des Moines metro area in Dallas County. Two funnel clouds were observed on the south side of Des Moines in the early evening.

118 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Humboldt County 4 S Dakota City 14 1543CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)

A trained spotter reported wind gusts estimated at 60 to 75 MPH along with a large dust cloud near a thunderstorm.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Cerro Gordo County 1 W Swaledale 14 1546CST 0 0 15.00K 0.00K Thunderstorm Wind (70EG)

The Cerro Gordo County dispatch relayed a public report of strong winds blowing shingles off of a roof between Interstate 35 and Swaledale. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Wright County Clarion 14 1550CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)

Reported at the Clarion AWOS site. Note: The measured wind gust of 51 knots is equivalent to 59 mph. Carroll County 1 E Carroll 14 1600CST 0 0 0.00K 0.00K Thunderstorm Wind (56MG)

A very hot airmass was in place across Iowa ahead of a weak cold front. Warm air from the Rockies pushed the 850 mb air to between 24 and 26 C. Surface temperatures soared into the 95 to 105 F range with dewpoints in the mid 40s across northwest Iowa, rising to around 60 over the southeast. The freezing level was quite high at 14,000 feet. CAPE was limited with the scant moisture present and a strong enhanced mixed layer was over the state. By the late afternoon downdraft CAPE rose to 1500 to 1700 J/kg and the inversion that was present had eroded away. Weak shear was present in the atmosphere with less than 25 kts of effective shear available. The cold front dropped southeast into the state during the afternoon and a scattered line of thunderstorms developed along the front from north central into west central Iowa. A few of the storms produced high winds of 65 MPH or more causing considerable blowing dust and some roof and shingle damage. Note: The measured wind gust of 56 knots is equivalent to 64 mph. Union County 1 NW Afton 16 0730CST 0930CST 0 0 0.00K 0.00K Heavy Rain

The public reported 4.5 inches of rain in the past two hours.

Union County Afton 16 0735CST 0 0 0.00K 0.00K Hail (0.88)

Union County 2 W Afton 16 0915CST 1115CST 0 0 10.00K 0.00K Flash Flood

The Union County Sherriff's office reported 3 feet of water mixed with hail and cornstalks running over 205th St. at Lark St. west of Afton. Street flooding was reported in Afton.

A nearly stationary front extended east to west across southern Iowa. Moisture pooling took place with the precipitable water value rising to around 1.25 inches by the morning of the 16th. CAPE was around 1500 J/kg. The flow was relatively weak with a band of thunderstorms developing along the front overnight in southeast Iowa. The thunderstorms then propagated slowly west through the morning. Flash flooding occurred in the Afton Area of Union County, where 4.5 inches of rain fell northwest of Afton within a couple hours. This resulted in three feet of running water, hail, and corn stalks flowing over the roads west of Afton. The thunderstorms also produced nickel size hail.

Crawford County 1 E Charter Oak 16 1728CST 0 0 0.00K 0.00K Heavy Rain

Over 4 inches of rain fell in Charter Oak with water over Highway 141.

Crawford County 5 SW Dow City 16 1732CST 0 0 0.00K 0.00K Heavy Rain

Rainfall total was unknown, but street flooding was reported around Dunlap. Pea size hail was also reported.

119 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Crawford County Denison 16 1757CST Kenwood 2020CST 0 0 300.00K 0.00K Flash Flood

Crawford County law enforcement reported water running four feet deep over Highway 30 in Denison with cars stalled and debris being swept into the river. Highway 30 also was partly under water near Dow City and there was a possible mudslide on Kenwood Road south of Charter Oak.

Crawford County Denison 16 1800CST 1905CST 0 0 0.00K 0.00K Heavy Rain

Coop observer reported 2.25 inches of rain in about an hour.

A stationary front remained in place across southern Iowa. During the late afternoon and evening hours an upper level shortwave moved east across the area. The atmosphere had become more unstable during the day with highs in the low to mid 80s and dewpoint temperatures in the low to mid 60s. Thunderstorms developed in western Iowa and moved very slowly east during the early evening. Around 1000 J/kg of CAPE was available. The atmosphere was very weakly sheared. Some hail occurred, but extremely heavy rainfall was the significant mode of the event. Precipitable water values increased to over 1.3 inches by late in the day. Heavy rainfall of 4 to 5 inches in under 2 hours was reported. U.S. Highway 30 west of Denison was reported under 4 feet of flowing water with cars and construction equipment under water. A mudslide was reported on Kenwood Road south of Charter Oak. There were several reports of culverts being washed out and structural damage to at least 2 bridges. Winnebago County 2 SE Neils 17 0430CST 3 WSW Leland 0830CST 0 0 10.00K 0.00K Flash Flood

A gravel road was washed out at the intersection of 150th and 380th.

Hancock County 6 N Hayfield 17 1058CST 0 0 0.00K 0.00K Heavy Rain

Rainfall of 4.75 inches recorded. Kossuth County 1 E Lakota 17 1058CST 0 0 0.00K 0.00K Heavy Rain

Rainfall of 6.00 inches recorded. Winnebago County 1 SE Forest City 17 1058CST 0 0 0.00K 0.00K Heavy Rain

Rainfall of 2.20 inches recorded. Worth County 1 SW Joice 17 1058CST 0 0 0.00K 0.00K Heavy Rain

Rainfall of 3.50 inches recorded. Worth County 1 E Kensett 17 1110CST 0 0 0.00K 0.00K Heavy Rain

Rainfall of 3.50 inches recorded. A stationary front that had been over southern Iowa began to lift north as a warm front on the morning of the 17th. The atmosphere had become more unstable during the morning with CAPE increasing to 1000 to 2000 J/kg. Precipitable water values increased to about 1.4 inches by late morning. The atmosphere exhibited very little shear. Thunderstorms developed during the morning and tracked slowly north. The storms produced very heavy rainfall of 2 to 6 inches in a short period of time, under 3 hours. Flash flooding occurred in Winnebago County north of the Forest City area where a gravel road was washed out. Palo Alto County 1 S Emmetsburg 17 1627CST 0 0 3.00K 0.00K Hail (1.00)

Public reported heavy rainfall along with nickel to quarter size hailstones.

120 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Palo Alto County 1 SE Emmetsburg 17 1640CST 0 0 0.00K 0.00K Hail (0.88)

Palo Alto County 1 SE Emmetsburg 17 1648CST 1900CST 0 0 10.00K 0.00K Flash Flood

Several inches of water flowing over the road in Emmetsburg at Lawler and Main.

Palo Alto County 1 SE Emmetsburg 17 1700CST 0 0 0.00K 0.00K Hail (0.88)

Palo Alto County 2 E Emmetsburg 17 1715CST 0 0 1.00K 0.00K Hail (1.00)

Palo Alto County 1 SE Emmetsburg 17 1715CST 0 0 0.00K 0.00K Heavy Rain

Rainfall in the past hour of 1.25 inches. Palo Alto County 2 NE Emmetsburg 17 1724CST 0 0 0.00K 0.00K Heavy Rain

Rainfall in the past hour of 5.00 inches. Relayed by KICD radio.

Palo Alto County 2 WSW Curlew 17 1745CST 0 0 5.00K 0.00K Hail (1.75)

Palo Alto County 3 WSW Curlew 17 1755CST 0 0 0.00K 0.00K Hail (0.88)

Palo Alto County 2 WSW Curlew 17 1800CST 0 0 0.00K 0.00K Hail (0.88)

An unstable airmass was in place over northern Iowa with an outflow boundary draped across the north central counties into southwest Minnesota. This boundary served as a focusing mechanism for thunderstorm development. The freezing level was relatively low at around 11,500 feet. CAPE available in the -10 to -30 layer of the atmosphere was between 200 and 400 J/kg. The atmosphere became unstable with afternoon highs in the upper 70s to low 80s and dewpoint temperatures in the mid 60s. CAPE was around 2000 J/kg with a lifted index of -4 C. The shear was quite weak with only 25 kts of shear available. Precipitable water increased to 1.4 inches. The LCL had lowered to 1000 meters by later afternoon. Isolated thunderstorms formed along the old outflow boundary. They moved very slowly and dumped copious amounts of rain. A report of 5 inches in one hour was received from north of Emmetsburg in Palo Alto County resulting in flash flooding in the city. There were numerous reports of half inch to three quarter inch diameter hail and 1 inch diameter hail falling west of Emmetsburg. As the thunderstorm continued to the southwest, hail of 1 to 1.75 inch diameter fell with the largest being golf ball size hail that fell west-southwest of Curlew.

Calhoun County 3 ESE Rinard 19 0204CST 0 5 3.00K 0.00K Thunderstorm Wind (55MG) Note: The measured wind gust of 55 knots is equivalent to 63 mph.

Marion County 1 E Otley 19 0209CST 0 0 3.00K 0.00K Hail (1.00)

Quarter size hail caused damage to a car. Kossuth County Algona 19 0245CST 0 0 3.00K 0.00K Thunderstorm Wind (53MG)

Iowa Department of Transportation Road Weather Information Site.

Note: The measured wind gust of 53 knots is equivalent to 61 mph.

121 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Worth County 2 E Hanlontown 19 0345CST 0 0 0.00K 0.00K Hail (0.88)

An unstable atmosphere was in place with strong theta-e advection taking place overnight. There was around 2000 J/kg of elevated CAPE available with a steep lapse rate, around 9 C, present in the 700 to 500 mb layer of the atmosphere. Downdraft CAPE was around 500 J/kg. A strong line of thunderstorms developed well to the west of Iowa during the previous evening. The line moved toward Iowa and weakened. During the early hours of the 19th, a shortwave lifting northeast into the central U.S. reinvigorated the line. A line of strong thunderstorms formed from northwest into central Iowa. A few of the storms became severe and produced winds of 60 to 65 MPH and some sub-severe hail over northern Iowa, with quarter size hail in central Iowa near Monroe in Marion County. The highest wind was a 64 MPH wind gust in Calhoun County.

Hancock County 3 S Hayfield 19 1310CST 0 0 75.00K 0.00K Thunderstorm Wind (61EG)

Damage just north of Highway 18 along Nash Ave and 260th Street. Lots of 6 inches or larger branches down and a few power poles leaning. Damage to a couple of grain bins and a few metal shed roofs peeled.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Crawford County 1 NNE Kenwood 19 1520CST 0 0 1.00K 0.00K Hail (1.00)

Crawford County 1 NNE Kenwood 19 1524CST 1624CST 0 0 0.00K 0.00K Heavy Rain

Estimate of 2 inches of rain in the past hour. On Highway 141 east of Charter Oak, a spotter saw water pouring out of the fields into ditches, but no flood impacts at that time. Adams County 3 WSW Carbon 19 1613CST 0 0 50.00K 5.00K Hail (2.50)

Hail completely covered the ground. Adams County 1 N Carbon 19 1615CST 0 0 50.00K 5.00K Hail (3.00)

Two to three inch hail received via social media. Sac County 2 W Ulmer 19 1624CST 0 0 0.00K 0.00K Funnel Cloud

The Sac County Deputy reported a funnel cloud near the town of Ulmer, or 4 miles east and 3 miles south of Lake View.

Adair County 1 E Bridgewater 19 1650CST 0 0 15.00K 0.00K Hail (1.50)

Hail dented aluminum siding of a house near Bridgewater. Adair County 1 E Bridgewater 19 1650CST 0 0 25.00K 0.00K Thunderstorm Wind (55EG)

Numerous 6 inch tree limbs down with hail damage to a house. Siding and roof damage. Hail size unknown but dents in aluminum were quarter to half dollar size. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Crawford County 2 NE Kenwood 19 1715CST 1730CST 0 0 5.00K 0.00K Flash Flood

The Crawford County dispatch reported water briefly over Highway 141 and some gravel roads in the area due to over 2 inches of rainfall. Conditions improved quickly after the rain ended.

122 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Webster County 5 N (FOD)Ft Dodge Muni A 19 1720CST 0 0 1.00K 0.00K Hail (1.00)

Humboldt County 5 WSW Thor 19 1724CST 0 0 5.00K 0.00K Thunderstorm Wind (55EG)

Large tree limbs broken and blown 100 yards. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Adams County 5 E Prescott 19 1726CST 0 0 0.00K 0.00K Hail (0.88)

Madison County 1 SE Earlham 19 1730CST 0 0 100.00K 0.00K Thunderstorm Wind (61EG)

A trailer park west to southwest of Earlham with 6 to 8 units was damaged. One unit had a missing roof. Multiple trees were down throughout town. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Madison County 1 SE Earlham 19 1730CST 0 0 5.00K 0.00K Thunderstorm Wind (55EG)

Power lines were down with large tree limbs broken. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Madison County 1 SE Earlham 19 1730CST 0 0 70.00K 0.00K Thunderstorm Wind (70EG)

Roof blown off of a house. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Madison County 1 SW Earlham 19 1730CST 0 0 30.00K 0.00K Thunderstorm Wind (61EG)

Trees and power lines were down west of Earham. Two to three poles were snapped. A shed was blown over with about 30 small pieces of wood spread across the field. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Dallas County 1 N Redfield 19 1732CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Several 6 to 8 inch diameter tree limbs were down near the high school.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Dallas County 3 SW Adel 19 1732CST 1735CST 2.08 100 0 0 4.00K 0.00K Tornado (EF0)

Weak tornado with a very broad circulation. Track was intermittent.

Madison County 1 SW Earlham 19 1733CST 0 0 15.00K 0.00K Thunderstorm Wind (52EG)

Semi blown over by high winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Dallas County 1 SW Adel 19 1738CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

Pea to marble size hail as well. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

123 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Dallas County 1 SSW Ortonville 19 1740CST 0 0 5.00K 0.00K Hail (1.00)

Quarter size hail with zero visibility. Strong winds taking down numerous tree limbs.

Dallas County 1 SW Adel 19 1743CST 0 0 5.00K 0.00K Hail (1.25)

Dallas County 3 NW Shuler Mine 19 1743CST 0 0 75.00K 0.00K Thunderstorm Wind (70EG)

A roof was damaged with structural damage to a building was reported.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Dallas County 2 NNW Shuler Mine 19 1743CST 0 0 75.00K 0.00K Thunderstorm Wind (70EG)

A house lost about three-quarters of its roof on County Highway R22 south of Highway 44.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Dallas County 3 NNW Shuler Mine 19 1745CST 1748CST 1.43 100 0 0 50.00K 0.00K Tornado (EF1)

Circulation was embedded within the straight line winds. There was significant tree and some structural wind damage to one residence along 250th street. Track was intermittent. Warren County New Virginia 19 1748CST 0 0 25.00K 5.00K Hail (1.75)

Dallas County 2 ENE Dallas Center 19 1748CST 0 0 5.00K 0.00K Thunderstorm Wind (55EG)

Eighteen inch diameter tree limbs were blown down in Highway 44 and S Avenue east of Dallas Center.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Dallas County 5 N Shuler Mine 19 1748CST 0 0 50.00K 0.00K Thunderstorm Wind (70EG)

A new machine shed had over half of the roof blown off. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Warren County 1 W New Virginia 19 1751CST 0 0 0.00K 0.00K Hail (0.75)

Dallas County 5 N Hadden Hill 19 1752CST 0 0 3.00K 0.00K Thunderstorm Wind (55EG)

Twelve inch diameter tree limbs blown down. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Dallas County 4 NNE Shuler Mine 19 1755CST 0 0 15.00K 5.00K Hail (1.75)

Polk County 1 SW Rider 19 1756CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)

From a Schoolnet site. Note: The measured wind gust of 54 knots is equivalent to 62 mph.

124 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Dallas County 1 SE Granger 19 1757CST 0 0 5.00K 0.00K Thunderstorm Wind (55EG)

Power lines and 18 inch trees down. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Polk County Polk City 19 1800CST 0 0 1.00K 0.00K Thunderstorm Wind (52MG)

From a Schoolnet site. Note: The measured wind gust of 52 knots is equivalent to 60 mph. Polk County 1 SW Rider 19 1800CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Large trees were down or snapped off around town. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Polk County 2 NE Herrold 19 1800CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)

A tree was blown down onto a power line. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Polk County Polk City 19 1804CST 0 1 0.00K 0.00K Thunderstorm Wind (52EG)

Ten inch diameter tree branches blown down in Polk City. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Polk County 1 SE Ankeny 19 1806CST 0 0 2.00K 0.00K Thunderstorm Wind (54MG)

From a Schoolnet site. Note: The measured wind gust of 54 knots is equivalent to 62 mph. Polk County 3 NNE Ankeny 19 1806CST 0 0 10.00K 0.00K Thunderstorm Wind (61EG)

Shingles and siding torn from some homes by the high wind. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Polk County 1 SE Ankeny 19 1807CST 0 0 10.00K 0.00K Thunderstorm Wind (65MG) Note: The measured wind gust of 65 knots is equivalent to 75 mph.

Polk County 3 NW Alleman 19 1807CST 1811CST 4.25 150 0 0 75.00K 0.00K Tornado (EF1)

Tornado exhibited an intermittent track as it moved across northern Polk County into Story County. Peak damage included garage and a living room roof removed from a manufactured home. Tornado continued into Story County.

Polk County 2 NNE Ankeny 19 1808CST 0 0 25.00K 0.00K Thunderstorm Wind (55EG)

A gas station canopy was torn off near 36th and Ankeny Blvd.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Polk County Ankeny 19 1810CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Six inch diameter trees blown down by high winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

125 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Story County 1 S Kelley 19 1810CST 0 0 30.00K 0.00K Thunderstorm Wind (55EG)

Top of grain bin crushed. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Story County 3 SSE Huxley 19 1811CST 1812CST 0.46 100 0 0 15.00K 0.00K Tornado (EF0)

Tornado exhibited an intermittent track as it moved across northern Polk County into Story County. Peak damage included garage and a living room roof removed from a manufactured home. Tornado moved in from Polk County.

Polk County 1 SE Ankeny 19 1816CST 0 0 1.00K 0.00K Hail (1.00)

Polk County 2 S Ivy 19 1820CST 0 0 1.00K 0.00K Hail (1.00)

Polk County 2 E Alleman 19 1827CST 0 0 5.00K 0.00K Thunderstorm Wind (55EG)

Power line were blown down along Highway 69 east of Alleman.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Story County 1 SSW Iowa Center 19 1827CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)

A few large 8 inch diameter and 20 feet long tree limbs down.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Marshall County 2 SSW Clemons 19 1848CST 0 0 0.00K 0.00K Funnel Cloud

Jasper County 2 SW Clyde 19 1848CST 0 0 1.00K 0.00K Hail (1.00)

Marshall County 1 S Marshalltown Arpt 19 1912CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Grundy County 3 S Grundy Center 19 1917CST 0 0 0.00K 0.00K Funnel Cloud

Marshall County 1 S State Center 19 1918CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)

Four to six inch tree branches down with power outages. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Grundy County 1 S Dike 19 1930CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Trees were blown down in town. Relayed by the Waterloo Courier.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jasper County 7 WNW Newburg 19 1933CST 0 0 1.00K 0.00K Hail (1.00)

126 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Marshall County 1 NW Dillon 19 1936CST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)

Wind gust estimated by the Emergency Manager. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Butler County 1 S Shell Rock 19 1944CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Trees were snapped off by high winds. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Bremer County 1 SW Plainfield 19 1952CST 0 0 1.00K 0.00K Hail (1.00)

Bremer County Plainfield 19 1952CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Public estimate of 60 MPH winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Bremer County 1 SE Waverly 19 1954CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Eight inch diameter tree branches were snapped at Bremer Ave and 8th St.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Appanoose County Centerville 19 2005CST 0 0 1.00K 0.00K Thunderstorm Wind (55MG) Note: The measured wind gust of 55 knots is equivalent to 63 mph.

Appanoose County Cincinnati 19 2005CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind damage with a tree blocking the road. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Monroe County 1 E Albia 19 2025CST 0 0 10.00K 0.00K Thunderstorm Wind (55EG)

Numerous tree limbs down, some 3 inches or more with winds estimated at 65 MPH.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Davis County Pulaski 19 2038CST 0 0 10.00K 0.00K Thunderstorm Wind (55EG)

Strong winds with tree damage. Tin was blown off of a house. Heavy rain as well.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Wapello County 4 W Eldon 19 2044CST 0 0 40.00K 0.00K Thunderstorm Wind (55EG)

A pole barn was blown onto the road. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Davis County 5 SE Floris 19 2045CST 0 0 75.00K 0.00K Thunderstorm Wind (61EG)

Tin blown off barns and sheds blown down. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

127 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Wapello County 2 WSW Ottumwa 19 2045CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A light pole was blown down on Ferry Street. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Wapello County 3 WNW Eldon 19 2045CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

A power pole and tree was blown down along County Road 918. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Wapello County 5 WNW Eldon 19 2049CST 0 0 5.00K 0.00K Thunderstorm Wind (55EG)

Trees were blocking the road on Ashland Road. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Mahaska County 1 E Oskaloosa Muni Arpt 19 2053CST 0 0 1.00K 0.00K Thunderstorm Wind (52MG)

The seasons first major severe weather event took place as a strong upper level low pressure lifted north into the central U.S. This was ahead of a strong upper level low pressure system over the southwest U.S. A warm front lifted north across the Des Moines CWA with moist and unstable air pushing into the state. There were several rounds of convection. The first developed over northern Iowa during the mid afternoon hours and moved north into Minnesota. A break in the thunderstorm activity took place before the next round moved into southwest Iowa and spread north and east during the evening. The atmosphere became unstable with highs in the 80s and dewpoints in the low to mid 60s by afternoon. CAPE, though not excessive, was sufficient with 1000 to 3000 J/kg available. CAPE in the -10 to -30 C layer of the atmosphere was between 300 and 600 J/kg. In the late afternoon hours around 500 J/kg of downdraft CAPE was present, and it increased to around 900 to 1100 J/kg during the evening hours. The shear increased as well with 25 to 40 kts available at the beginning of the event, and 50 to 60 kts by the end. Precipitable water values increased to 1.2 to 1.5 inches. The LCL was relatively low, around 1000 meters. The freezing level was relatively low, around 11,900 feet. The storms produced heavy rain and large hail initially. Flash flooding occurred first in Crawford County in western Iowa with over two inches of rainfall in about an hour, causing water to flow over Highway 141. The event became a wind and hail event for the most part with winds gusting to 60 to 80 MPH across a large part of the CWA and hail up to 3 inches in diameter in Adams County. The largest hail was northwest of Carbon in Adams County, where 2 to 3 inch diameter hail fell. Reports indicated enough hail fell to completely cover the ground. Numerous reports of 1.5 inch hail were received. Three tornadoes touched down in central Iowa. Numerous reports of winds of 60 to 80 MPH were received all along the line of thunderstorms. High winds blew a semi truck off the highway and blew it over west of Earlham in Madison County. There was considerable tree damage reported with some damage to outbuilding, barns, and a few houses. Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Dallas County 1 E Van Meter 20 1722CST 0 0 0.00K 0.00K Hail (0.88)

Union County 4 ENE Creston 20 1735CST 1747CST 0 0 25.00K 0.00K Hail (1.75)

Golf ball size hail covering the ground. Lasted 12 minutes.

Union County 1 E Creston 20 1740CST 0 0 25.00K 0.00K Hail (1.75)

Golf ball size hail was reported on the northeast side of Creston.

Union County 4 E Creston 20 1745CST 0 0 15.00K 0.00K Hail (1.75)

Polk County 1 NE Dodge Fld Arpt 20 1750CST 0 0 0.00K 0.00K Funnel Cloud

Two funnel clouds were observed.

128 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Polk County 2 NE Herrold 20 1800CST 0 0 0.00K 0.00K Hail (0.75)

At the NWS office in Johnston. Polk County 1 SE Ankeny 20 1801CST 1811CST 0 0 0.00K 0.00K Funnel Cloud

Three HAM operators reported a rotating funnel cloud which lasted 10 minutes.

Polk County 2 N Ankeny 20 1814CST 0 0 0.00K 0.00K Hail (0.88)

Polk County 1 NNE Ankeny 20 1816CST 0 0 3.00K 0.00K Hail (1.00)

Polk County 1 N Oralabor 20 1817CST 0 0 25.00K 0.00K Hail (1.75)

Story County 1 NW Nevada 20 1824CST 0 0 3.00K 0.00K Hail (1.00)

Mainly pea size hail with some stones up to quarter size. Story County Nevada 20 1825CST 0 0 0.00K 0.00K Hail (0.75)

Polk County 6 NE Farrar 20 1833CST 0 0 3.00K 0.00K Hail (1.00)

Nickel to quarter size hail at the intersection of 620th Ave and 340th St.

Story County 1 N Maxwell 20 1838CST 1840CST 0 0 25.00K 0.00K Hail (1.75)

Hail reached quarter size by 1838 CST. Story County 1 SW Collins 20 1848CST 0 0 0.00K 0.00K Funnel Cloud

Rotating funnel cloud observed to the north near Collins. Dust stirred up at the ground below the funnel, but rotation was not observed. Lasted about 20 seconds. Hardin County 1 SSE Union 20 1910CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Pea to dime size hail also. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Marshall County 1 SW Bangor 20 1911CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)

Tree fell and took out a power line near Bangor. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Marshall County 3 N State Center 20 1915CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Pea to dime size hail with the wind. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

129 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Grundy County 3 WNW Ivester 20 1922CST 0 0 5.00K 0.00K Thunderstorm Wind (61EG)

Utility lines bent to the east. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Warren County 1 SE Martensdale 20 1933CST 0 0 10.00K 0.00K Hail (1.00)

Winds of 50 to 60 MPH also occurred. Franklin County 2 NNE Popejoy 20 1945CST 0 0 0.00K 0.00K Hail (0.88)

Polk County 4 E Santiago 20 1950CST 0 0 15.00K 0.00K Thunderstorm Wind (55EG)

Mitchellville Fire Department reeported several trees down in town. Also 8 to 10 inch diameter branches snapped.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Marshall County 2 NE Luray 20 2023CST 0 0 2.00K 0.00K Thunderstorm Wind (61MG)

A broad cyclonic circulation was in place over Iowa with the surface low over northeast South Dakota. A trough of low pressure extended south into eastern Nebraska. A cyclonic jet in the mid latitudes was nosing into Iowa. The atmosphere became unstable with most unstable CAPE between 1000 and 2000 J/kg. Downdraft CAPE was 800 to 1000 J/kg with CAPE available in the -10 to -30 C layer of the atmosphere between 400 and 500 J/kg. The freezing level was quite low, between 9,500 and 11,000 feet. There was a decent amount of shear available with 40 to 50 kts at the beginning of storm development and the LCL was around 1250 meters. Precipitable water values were around 1.1 inches. Thunderstorms fired rapidly in central Iowa along an old boundary. The storms fired rapidly all the way from southwest into central and parts of northeast Iowa. With the low freezing level, the primary severe threat was hail. Many of the thunderstorms produced penny to quarter size hail. Golf ball hail occurred in Union, Polk, and Story County. Elsewhere the hail was an inch or less. There were numerous reports of funnel clouds, but with the LCL above 1000 meters, none of them touched down. During the later part of the event, thunderstorms began to produce high winds with winds of 60 to 70 MPH reported in Hardin, Marshall, and Grundy Counties. Note: The measured wind gust of 61 knots is equivalent to 70 mph. Black Hawk County 2 E Benson 21 0845CST 1 N Farmer 26 0115CST 0 0 250.00K 0.00K Flood

Bremer County 2 E Babcock 21 2230CST 23 0100CST 0 0 250.00K 0.00K Flood

Black Hawk County 2 E Benson 22 1415CST 1 SW La Porte City 24 0830CST 0 0 500.00K 0.00K Flood

130 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central

May 2013 was a wet month across the state. The heavy rainfall brought relief across the state from the drought of the preceding year. The month began with a May record snow event. Snow began in northwest Iowa early on the morning of the 1st with six inches reported at Sibley. Heavy snow shifted to north central Iowa on the night of the 1st into the morning of the 2nd with Forest City and Britt setting state records for one day May snowfall of 11.0 inches (old record 10.0 inches at Le Mars on May 28, 1947). The heavier snow began to shift southward on the night of the 2nd into the morning of the 3rd but not before Osage set a state record for May total snowfall of 13.0 inches. Southern Iowa snow totals included 7.5 inches at Indianola by the morning of the 3rd and 8.0 inches near Promise City in Wayne County. The winter storm system slowly moved back to the west with a few snow flurries persisting into the afternoon of the 4th. The snowfall contained a large amount of water. As it melted, soils were replenished with the stage set for run-off and flooding later in the month. Rain occurred somewhere in the state every day from the 19th through the end of the month. Widespread rain fell on the 19th-20th with heavy rain in Mitchell County where Saint Ansgar reported 5.34 inches. However, the wettest weather in most areas came over the Memorial Day weekend. Heaviest rains were centered over northwest Iowa on the 25th-26th with 8.10 inches at Sioux Center, 8.83 inches near Cleghorn and 8.25 inches at Cherokee. Another area of torrential rain occurred over central Iowa with 8.17 inches at Zearing, 7.44 inches at Marshalltown and 8.04 inches at Grinnell. Flooding was widespread over the state and numerous records for rainfall were set. Rain totals for the month ranged from 3.34 inches at Clinton (0.59 inches below normal) to 16.63 inches at Zearing. Two locations set records for wettest calendar month: Grinnell 16.16 inches this May (old record 14.17 inches in June 1924 among 130 years of record) and Toledo with 14.89 inches (old record 14.73 inches in August 1977 among 119 years of record). The heavy rainfall caused flooding in several areas of central into southeast Iowa. Flooding took place along the Des Moines and Raccoon River basins. Though fairly widespread, the flooding was not major. Several locations remained above flood stage into June.

Jasper County Newton 25 0627CST 0727CST 0 0 0.00K 0.00K Heavy Rain

Street flooding was reported in Newton with about 2 inches of rain falling in about an hour.

Story County 1 E Colo 25 0845CST 1110CST 0 0 10.00K 0.00K Flash Flood

Water about 18 inches deep over the intersection of Highway 65 and Lincoln Way or 230th St.

Marshall County 3 N Rhodes 25 0901CST 1110CST 0 0 5.00K 0.00K Flash Flood

Water was reported over Durham Ave about three miles south of State Center.

Boone County 4 ESE Mackey 25 1003CST 0 0 0.00K 0.00K Heavy Rain

Rainfall total was 3.00 inches. Marshall County State Center 25 1107CST 0 0 0.00K 0.00K Heavy Rain

Rainfall total was 3.94 inches. Marshall County 1 SW State Center 25 1146CST 0 0 0.00K 0.00K Heavy Rain

Rainfall total was 4.94 inches. Jasper County 4 SSW Kellogg 25 1317CST 0 0 0.00K 0.00K Heavy Rain

Rainfall total was 5.10 inches. Jasper County 1 W Newton Muni Arpt 25 1539CST 0 0 0.00K 0.00K Heavy Rain

Rainfall total was 3.80 inches.

131 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central

A strong push of moisture moved into the central U.S. during the morning of the 25th. A MCC formed over Nebraska and advanced east-northeast into Iowa. Precipitable water increased to around 1.7 inches by sunrise, which was about 2 sigma above climatology. A 40 kt low level jet fed the system, maintaining it into the morning hours. Thunderstorms were relatively slow moving and continued to develop and train into the same area. One line of storms moved through central Iowa and became nearly stationary across parts of Story, Marshall, and Jasper Counties. Very heavy rainfall occurred with a rate of nearly 2 inches per hour. This caused flash flooding in Marshall County south of State Center and also near Colo. Two inches of rain in an hour was reported in Jasper County in Newton, causing street flooding. The heaviest rainfall was near Newton in Jasper Country with 5.1 inches, and State Center in Marshall County was close behind with nearly 5 inches.

Audubon County Audubon 25 2203CST 0 0 1.00K 0.00K Hail (1.00)

Audubon County 1 N Fiscus 25 2223CST 0 0 0.00K 0.00K Hail (0.88)

Pea to nickel size hail occurring. Jasper County 1 N Turner 26 0303CST 0700CST 0 0 100.00K 0.00K Flash Flood

Highway 6 was under water and closed. Numerous cars were stalled.

Jasper County 1 SSW Kellogg 26 0303CST 0700CST 0 0 200.00K 0.00K Flash Flood

Water covered the road at Illinois Ave and Highway 6. Parts of Northfield Drive were reported under water with one house surrounded by water. Jasper County 3 NNW Turner 26 0400CST 0 0 0.00K 0.00K Heavy Rain

Measured 4.4 inches of rain overnight. Jasper County 1 E Kellogg 26 0430CST 0 0 250.00K 0.00K Flash Flood Spotter reports sandbagging of the Kellogg water treatment plant and fire department.

Poweshiek County 1 NE Grinnell 26 0520CST 0700CST 0 0 100.00K 0.00K Flash Flood

Roads in the city covered with water and impassible. Butler County 3 N Eleanor 26 0600CST 0 0 0.00K 0.00K Heavy Rain

Twenty four hour rainfall total of 1.92 inches. Davis County 1 W Bloomfield 26 0600CST 0 0 0.00K 0.00K Heavy Rain

Rainfall of 2.04 inches in past two days, 1.90 in the past 24 hours.

Grundy County 1 S Grundy Center 26 0600CST 0 0 0.00K 0.00K Heavy Rain

Twenty four hour rainfall total of 1.44 inches.

132 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Hancock County 1 E Britt 26 0600CST 0 0 0.00K 0.00K Heavy Rain

Rainfall of 1.36 Inches over the past two days. Hardin County Iowa Falls 26 0600CST 0 0 0.00K 0.00K Heavy Rain

Twenty four hour rainfall total of 1.72 inches. Jasper County Newton 26 0600CST 0 0 0.00K 0.00K Heavy Rain

Rainfall of 4.18 inches over the past two days. Marshall County 1 SE Marshalltown 26 0600CST 0 0 0.00K 0.00K Heavy Rain

Twenty four hour rainfall total of 3.31 inches. Poweshiek County 3 SSW Grinnell 26 0600CST 0 0 0.00K 0.00K Heavy Rain

Twenty four hour rainfall total of 6.74 inches. Poweshiek County 1 W Montezuma 26 0600CST 0 0 0.00K 0.00K Heavy Rain

Twenty four hour rainfall total of 3.96 inches. Tama County 1 S Toledo 26 0600CST 0 0 0.00K 0.00K Heavy Rain

Twenty four hour rainfall total of 1.47 inches. Jasper County 1 SE Clyde 26 0623CST 0 0 0.00K 0.00K Heavy Rain

Trained spotter reported 4 inches of rain in the past 24 hours.

Poweshiek County 3 S Malcolm 26 0700CST 0 0 150.00K 0.00K Flash Flood Bridge washed out on Highway 63 north of Montezuma. Poweshiek County 3 ENE Grinnell Arpt 26 0700CST 0 0 150.00K 0.00K Flash Flood Bridge washed out along 390th Ave near 70th St block just west of Malcom.

Franklin County 1 S Hampton 26 0700CST 0 0 0.00K 0.00K Heavy Rain

Twenty four hour rainfall total of 1.86 inches, two day total of 2.09 inches.

Hancock County 1 W Kanawha 26 0700CST 0 0 0.00K 0.00K Heavy Rain

Twenty four hour rainfall total of 1.96 inches, total of 2.44 over the past two days.

Story County 1 S Zearing 26 0700CST 0 0 0.00K 0.00K Heavy Rain

Twenty four hour rainfall total of 1.33 inches, total 3.17 over two days.

133 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Franklin County 4 ENE Popejoy 26 0811CST 0 0 5.00K 0.00K Flash Flood 4 N Burdette Six inches of water over 70th Ave near the Heather Ave intersection.

Franklin County 1 E Bradford 26 0828CST 1230CST 0 0 5.00K 0.00K Flash Flood

Water over Nettle Ave between 3rd and 5th St in Bradford. Franklin County 2 ENE Latimer 26 0909CST 1230CST 0 0 25.00K 0.00K Flash Flood

Water over Jonquil Ave about 1.5 miles north of Highway 3 due to flooding of Spring Creek.

Franklin County 4 SSE Coulter 26 0910CST 1230CST 0 0 20.00K 0.00K Flash Flood

Bridge closed on Indigo Ave just south of 110th St due to creek out of its banks.

Poweshiek County 1 E Grinnell 26 0915CST 0 0 0.00K 0.00K Heavy Rain

Trained spotter reported 4.5 inches of rain since 1700 CST Saturday.

Franklin County 3 SW Bradford 26 0916CST 1230CST 0 0 100.00K 0.00K Flash Flood

Highway 65 at 50th street washed out west of Mallard Ave. Butler County Parkersburg 26 0930CST 0 0 0.00K 0.00K Heavy Rain

Twenty four hour rainfall total of 2.78 inches. Grundy County 2 SE Ivester 26 1000CST 4 NNW Conrad 1400CST 0 0 50.00K 0.00K Flash Flood

Highway 14 closed due to water over the road about 3 miles south of Highway 175. Officials had to rescue one person stranded in a vehicle. Grundy County 1 NNW Wellsburg 26 1000CST 1400CST 0 0 25.00K 0.00K Flash Flood

Exit ramps closed at the 187 mile marker on Highway 20 due to water over the road at County Road T19.

Marshall County 2 SSE Marshalltown Arpt 26 1000CST 2 N Marshalltown 1100CST 0 0 20.00K 0.00K Flash Flood

Water over Weise Garden Road just north of Marshalltown due to Burnett Creek.

Hardin County 2 WNW Eagle City 26 1015CST 1400CST 0 0 50.00K 0.00K Flash Flood

P Ave washed out near 155th street.

134 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Hardin County 1 E Abbott Crossing 26 1015CST 1400CST 0 0 25.00K 0.00K Flash Flood

Water over County Highway S56 near the 140th St intersection.

Marshall County 3 NNE St Anthony 26 1025CST 3 N Clemons 1100CST 0 0 25.00K 0.00K Flash Flood

Water over Marble Road/County Highway E18 between Canfield Ave and Durham Ave due to the Minerva Creek.

IAZ025-036>037 Franklin - Hamilton - Hardin - Wright 26 1030CST 1130CST 0 0 10.0K 0.00K High Wind

Franklin County 3 SSE Hampton Muni Arpt 26 1036CST 3 WNW Geneva 1130CST 0 0 50.00K 0.00K Flash Flood

Highway 65 near County HIghway C47 about 4 miles south of Hampton closed due to Maynes Creek.

A strong warm front was in place across central Nebraska through northern Missouri. The front aloft bisected Iowa from northwest to southeast. A 35 kt low level jet was in place with strong moisture transport into the state. Precipitable water values were in the 1.2 to 1.4 inch range. The atmosphere was fairly strongly sheared with 35 to 50 kts of available shear. Elevated CAPE was in the 500 to 1000 J/kg range. Downdraft CAPE was relatively low, less than 500 J/kg. The freezing level was around 13,500 feet with CAPE in the -10 to -30 C layer of the atmosphere around 200 J/kg. Thunderstorms fired along the 850 mb warm front from northwest, through central, into southeast Iowa. Many of the storms produced small hail with a few becoming severe. Nickel to quarter size hail fell in the Audubon area. The predominant threat was the heavy rainfall. Intense storms dropped 4 to 8 inches of rain over parts of Jasper and Poweshiek Counties. The highest measured observation was 6.74 inches in Brooklyn in Poweshiek County. U.S. Highway 6 was closed in the Kellogg and Oakland Acres areas. Cars were trapped by the high water in the Oakland Acres area as well. Several bridges were washed out in the area. As the water rose, the water treatment plant was flooded in the town of Kellogg. Thunderstorms continued to expand over north central Iowa. Flash flooding and flooded streets were reported in Hardin, Franklin, Marshall, and Grundy Counties. As the thunderstorm complex weakened, a wake low formed on the west side of the complex. Gusty easterly winds developed with high winds in a small area of north central Iowa. Winds were sustained around 40 MPH over a four county area with a peak gust of 65 MPH at Steamboat Rock in Hardin County.

Jasper County 2 ESE Metz 26 1101CST 27 0730CST 0 0 50.00K 0.00K Flood

North Skunk River was out of its banks along I-80. Marshall County 1 NNW Clemons 26 1435CST 1 N Bromley 2030CST 0 0 25.00K 0.00K Flash Flood

Minerva Creek out of its banks and flooding 50 acres near 148th and S52. Water approaching the bridge. Gravel road 155th was under water. Story County 2 ENE Zearing 26 1455CST 1 NNE Mc Callsburg 1845CST 0 0 100.00K 0.00K Flash Flood

NWS CO-OP observer and Emergency Manager report flash flooding in and near Zearing. Highway 65 is under water in two places, including south 140th St. County pavement E18 is closed in several places east and west of Zearing.

135 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central

The continued series of thunderstorms moved across Iowa during the afternoon of the 26th and through the overnight hours of the 26th into the 27th. A stationary front remained in place from central Nebraska into northern Missouri. The front aloft remained over Iowa, setting the stage for repeated thunderstorm development. The parameters changed little from the previous event. A weakly sheared atmosphere was in place with 25 to 30 kts of shear available. CAPE values were slightly higher, in the 1000 to 2000 J/kg range. Downdraft CAPE ranged from under 400 J/kg over the east part of the CWA to 800 J/kg over the west. A substantial inversion was in place over most of the Des Moines CWA. CAPE in the -10 to -30 C layer of the atmosphere was relatively low, only 200 to 400 J/kg. Precipitable water values were in the 1.3 to 1.6 inch range, or over 2 standard deviations above normal. Thunderstorms from the previous night weakened, only to be replaced by a new round of thunderstorms that developed over northwest Iowa by mid day on the 26th. These storms moved southeast across the state, producing heavy rain across many of the areas that received heavy rainfall the night before. Highway closings were too numerous to mention with many small creeks overflowing their banks and causing flash flooding. There were several reports of road washouts and bridges being washed out. A man driving a SUV was swept away by swift flood waters Monday morning on Westbrook Street in Butler County west of Parkersburg. Severe weather was limited. The storms produced half dollar size hail in Taylor County. Hail also fell in Humboldt and Polk Counties. A funnel cloud was reported in Taylor County as well. One brief tornado touchdown was reported southwest Diagonal in Ringgold County. On the morning of the 27th, as the second MCS decayed, high winds occurred over a small part of north central into central Iowa as a wake low formed. Winds gusted to 58 MPH in Polk County at Ankeny. An RWIS site in Marshall County at Marshalltown recorded a 60 MPH wind gust. Wind damage occurred in Boone County and Hardin Counties. Sustained winds of 40 to 45 MPH were reported in Jasper and Story Counties. Scattered reports of outbuilding and tree damage were received.

Marshall County 2 ESE Minerva 26 1500CST 2 W Marshalltown 31 2359CST 0 0 250.00K 0.00K Flood

May 2013 was a wet month across the state. The heavy rainfall brought relief across the state from the drought of the preceding year. The month began with a May record snow event. Snow began in northwest Iowa early on the morning of the 1st with six inches reported at Sibley. Heavy snow shifted to north central Iowa on the night of the 1st into the morning of the 2nd with Forest City and Britt setting state records for one day May snowfall of 11.0 inches (old record 10.0 inches at Le Mars on May 28, 1947). The heavier snow began to shift southward on the night of the 2nd into the morning of the 3rd but not before Osage set a state record for May total snowfall of 13.0 inches. Southern Iowa snow totals included 7.5 inches at Indianola by the morning of the 3rd and 8.0 inches near Promise City in Wayne County. The winter storm system slowly moved back to the west with a few snow flurries persisting into the afternoon of the 4th. The snowfall contained a large amount of water. As it melted, soils were replenished with the stage set for run-off and flooding later in the month. Rain occurred somewhere in the state every day from the 19th through the end of the month. Widespread rain fell on the 19th-20th with heavy rain in Mitchell County where Saint Ansgar reported 5.34 inches. However, the wettest weather in most areas came over the Memorial Day weekend. Heaviest rains were centered over northwest Iowa on the 25th-26th with 8.10 inches at Sioux Center, 8.83 inches near Cleghorn and 8.25 inches at Cherokee. Another area of torrential rain occurred over central Iowa with 8.17 inches at Zearing, 7.44 inches at Marshalltown and 8.04 inches at Grinnell. Flooding was widespread over the state and numerous records for rainfall were set. Rain totals for the month ranged from 3.34 inches at Clinton (0.59 inches below normal) to 16.63 inches at Zearing. Two locations set records for wettest calendar month: Grinnell 16.16 inches this May (old record 14.17 inches in June 1924 among 130 years of record) and Toledo with 14.89 inches (old record 14.73 inches in August 1977 among 119 years of record). The heavy rainfall caused flooding in several areas of central into southeast Iowa. Flooding took place along the Des Moines and Raccoon River basins. Though fairly widespread, the flooding was not major. Several locations remained above flood stage into June.

Marshall County 3 NE Luray 26 1530CST 1 E Marietta 2030CST 0 0 250.00K 0.00K Flash Flood

Marshall County dispatch reports flooded roads in Marshalltown and the northern part of the county. Major Highways 14 and 146 are under water and closed with numerous stranded vehicles in Marshalltown.

Crawford County 5 E Boyer 26 1533CST 0 0 0.00K 0.00K Hail (0.75)

Tama County 2 N Toledo 26 1612CST 0 0 0.00K 0.00K Heavy Rain

Rainfall since midnight was 3.92 inches. Marshall County 2 W Haverhill 26 1710CST 1 S Albion 2030CST 0 0 100.00K 0.00K Flash Flood

Marshall County Sheriff reports that Highway 14 remained closed due to flooding north of Marshalltown. Highway 330 south of Albion is also closed.

136 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Poweshiek County 5 ESE Sheridan 26 1730CST 2045CST 0 0 25.00K 0.00K Flash Flood

Newburg road near intersection of Highway F17 and Highway 63 is closed for a distance of about 100 yards.

Polk County (DSM)Des Moines Intl 26 1745CST 1750CST 0 0 0.00K 0.00K Hail (0.75)

Special observation from the airport observer. Ringgold County 2 WSW Diagonal 26 1823CST 1824CST 0.12 30 0 0 0.00K 0.00K Tornado (EF0)

A brief tornado touchdown occurred. Taylor County 2 SE Merle Jct 26 1900CST 0 0 3.00K 0.00K Hail (1.00)

Taylor County 3 NW Blockton 26 1907CST 0 0 0.00K 0.00K Funnel Cloud

Poweshiek County 4 NNW Malcolm 26 1915CST 5 SE Sheridan 2045CST 0 0 25.00K 0.00K Flash Flood

Flash flooding reported on 90th St. between 360th and 370th Ave.

Poweshiek County 2 N Forest Home 26 1915CST 4 SW Searsboro 27 0930CST 0 0 250.00K 0.00K Flood

Numerous road closings due to flooding throughout Poweshiek County including 400th Ave west of Grinnell and several roads in the Searsboro and Montezuma area. Taylor County 5 SW Gravity 26 1921CST 0 0 5.00K 0.00K Hail (1.25)

Taylor County Bedford 26 1937CST 0 0 0.00K 0.00K Hail (0.88)

Rainfall of three quarters of an inch as well. Jasper County 2 SE Kellogg 26 1940CST 27 0330CST 0 0 250.00K 0.00K Flood

Twenty sections of county roads were closed due to flooding, many along the North Skunk River.

Mahaska County 3 N New Sharon 26 2045CST 27 0730CST 0 0 150.00K 0.00K Flood

Highway 146 is closed from Highway 63 at New Sharon north to the Poweshiek County line due to flooding on the North Skunk River. Butler County 1 W Parkersburg 26 2150CST 1 SSW Aplington 27 1230CST 1 0 500.00K 0.00K Flood

Beaver Creek out of its banks and flooding about a mile long section of Iowa Highway 57 west of Parkersburg. Iowa DOT has already closed that section of the highway with water reaching several houses. M71VE

137 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Humboldt County Bradgate 26 2155CST 0 0 3.00K 0.00K Hail (1.00)

Mahaska County 1 E New Sharon 26 2345CST 27 1230CST 0 0 100.00K 0.00K Flood

Highway 63 east of town and highway 146 north of town flooded by the North Skunk River.

Guthrie County 1 E Bayard 27 0315CST 0800CST 0 0 10.00K 0.00K Flash Flood

Highway 25 railroad underpass flooded. Highway has been closed.

Guthrie County 1 NNW Fanslers 27 0322CST 0800CST 0 0 100.00K 0.00K Flash Flood

Water over the spillway and road in Springbrook State Park. DNR is evacuating the park.

Guthrie County 2 S Bagley 27 0330CST 0800CST 0 0 10.00K 0.00K Flash Flood

Water flowing over Quail Road. The continued series of thunderstorms moved across Iowa during the afternoon of the 26th and through the overnight hours of the 26th into the 27th. A stationary front remained in place from central Nebraska into northern Missouri. The front aloft remained over Iowa, setting the stage for repeated thunderstorm development. The parameters changed little from the previous event. A weakly sheared atmosphere was in place with 25 to 30 kts of shear available. CAPE values were slightly higher, in the 1000 to 2000 J/kg range. Downdraft CAPE ranged from under 400 J/kg over the east part of the CWA to 800 J/kg over the west. A substantial inversion was in place over most of the Des Moines CWA. CAPE in the -10 to -30 C layer of the atmosphere was relatively low, only 200 to 400 J/kg. Precipitable water values were in the 1.3 to 1.6 inch range, or over 2 standard deviations above normal. Thunderstorms from the previous night weakened, only to be replaced by a new round of thunderstorms that developed over northwest Iowa by mid day on the 26th. These storms moved southeast across the state, producing heavy rain across many of the areas that received heavy rainfall the night before. Highway closings were too numerous to mention with many small creeks overflowing their banks and causing flash flooding. There were several reports of road washouts and bridges being washed out. A man driving a SUV was swept away by swift flood waters Monday morning on Westbrook Street in Butler County west of Parkersburg. Severe weather was limited. The storms produced half dollar size hail in Taylor County. Hail also fell in Humboldt and Polk Counties. A funnel cloud was reported in Taylor County as well. One brief tornado touchdown was reported southwest Diagonal in Ringgold County. On the morning of the 27th, as the second MCS decayed, high winds occurred over a small part of north central into central Iowa as a wake low formed. Winds gusted to 58 MPH in Polk County at Ankeny. An RWIS site in Marshall County at Marshalltown recorded a 60 MPH wind gust. Wind damage occurred in Boone County and Hardin Counties. Sustained winds of 40 to 45 MPH were reported in Jasper and Story Counties. Scattered reports of outbuilding and tree damage were received.

Wright County 2 WSW Belmond 27 0515CST 1 ENE Cornelia 28 1145CST 0 0 50.00K 0.00K Flood

Butler County 3 ESE New Hartford 27 0615CST 28 0715CST 0 0 250.00K 0.00K Flood

138 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central

May 2013 was a wet month across the state. The heavy rainfall brought relief across the state from the drought of the preceding year. The month began with a May record snow event. Snow began in northwest Iowa early on the morning of the 1st with six inches reported at Sibley. Heavy snow shifted to north central Iowa on the night of the 1st into the morning of the 2nd with Forest City and Britt setting state records for one day May snowfall of 11.0 inches (old record 10.0 inches at Le Mars on May 28, 1947). The heavier snow began to shift southward on the night of the 2nd into the morning of the 3rd but not before Osage set a state record for May total snowfall of 13.0 inches. Southern Iowa snow totals included 7.5 inches at Indianola by the morning of the 3rd and 8.0 inches near Promise City in Wayne County. The winter storm system slowly moved back to the west with a few snow flurries persisting into the afternoon of the 4th. The snowfall contained a large amount of water. As it melted, soils were replenished with the stage set for run-off and flooding later in the month. Rain occurred somewhere in the state every day from the 19th through the end of the month. Widespread rain fell on the 19th-20th with heavy rain in Mitchell County where Saint Ansgar reported 5.34 inches. However, the wettest weather in most areas came over the Memorial Day weekend. Heaviest rains were centered over northwest Iowa on the 25th-26th with 8.10 inches at Sioux Center, 8.83 inches near Cleghorn and 8.25 inches at Cherokee. Another area of torrential rain occurred over central Iowa with 8.17 inches at Zearing, 7.44 inches at Marshalltown and 8.04 inches at Grinnell. Flooding was widespread over the state and numerous records for rainfall were set. Rain totals for the month ranged from 3.34 inches at Clinton (0.59 inches below normal) to 16.63 inches at Zearing. Two locations set records for wettest calendar month: Grinnell 16.16 inches this May (old record 14.17 inches in June 1924 among 130 years of record) and Toledo with 14.89 inches (old record 14.73 inches in August 1977 among 119 years of record). The heavy rainfall caused flooding in several areas of central into southeast Iowa. Flooding took place along the Des Moines and Raccoon River basins. Though fairly widespread, the flooding was not major. Several locations remained above flood stage into June.

IAZ037-047>049- Boone - Hardin - Marshall - Polk - Story 060 27 0630CST 0830CST 0 0 65.0K 0.00K High Wind

The continued series of thunderstorms moved across Iowa during the afternoon of the 26th and through the overnight hours of the 26th into the 27th. A stationary front remained in place from central Nebraska into northern Missouri. The front aloft remained over Iowa, setting the stage for repeated thunderstorm development. The parameters changed little from the previous event. A weakly sheared atmosphere was in place with 25 to 30 kts of shear available. CAPE values were slightly higher, in the 1000 to 2000 J/kg range. Downdraft CAPE ranged from under 400 J/kg over the east part of the CWA to 800 J/kg over the west. A substantial inversion was in place over most of the Des Moines CWA. CAPE in the -10 to -30 C layer of the atmosphere was relatively low, only 200 to 400 J/kg. Precipitable water values were in the 1.3 to 1.6 inch range, or over 2 standard deviations above normal. Thunderstorms from the previous night weakened, only to be replaced by a new round of thunderstorms that developed over northwest Iowa by mid day on the 26th. These storms moved southeast across the state, producing heavy rain across many of the areas that received heavy rainfall the night before. Highway closings were too numerous to mention with many small creeks overflowing their banks and causing flash flooding. There were several reports of road washouts and bridges being washed out. A man driving a SUV was swept away by swift flood waters Monday morning on Westbrook Street in Butler County west of Parkersburg. Severe weather was limited. The storms produced half dollar size hail in Taylor County. Hail also fell in Humboldt and Polk Counties. A funnel cloud was reported in Taylor County as well. One brief tornado touchdown was reported southwest Diagonal in Ringgold County. On the morning of the 27th, as the second MCS decayed, high winds occurred over a small part of north central into central Iowa as a wake low formed. Winds gusted to 58 MPH in Polk County at Ankeny. An RWIS site in Marshall County at Marshalltown recorded a 60 MPH wind gust. Wind damage occurred in Boone County and Hardin Counties. Sustained winds of 40 to 45 MPH were reported in Jasper and Story Counties. Scattered reports of outbuilding and tree damage were received.

Dallas County 2 WSW Dawson 27 0815CST 31 2359CST 0 0 200.00K 0.00K Flood

139 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central

May 2013 was a wet month across the state. The heavy rainfall brought relief across the state from the drought of the preceding year. The month began with a May record snow event. Snow began in northwest Iowa early on the morning of the 1st with six inches reported at Sibley. Heavy snow shifted to north central Iowa on the night of the 1st into the morning of the 2nd with Forest City and Britt setting state records for one day May snowfall of 11.0 inches (old record 10.0 inches at Le Mars on May 28, 1947). The heavier snow began to shift southward on the night of the 2nd into the morning of the 3rd but not before Osage set a state record for May total snowfall of 13.0 inches. Southern Iowa snow totals included 7.5 inches at Indianola by the morning of the 3rd and 8.0 inches near Promise City in Wayne County. The winter storm system slowly moved back to the west with a few snow flurries persisting into the afternoon of the 4th. The snowfall contained a large amount of water. As it melted, soils were replenished with the stage set for run-off and flooding later in the month. Rain occurred somewhere in the state every day from the 19th through the end of the month. Widespread rain fell on the 19th-20th with heavy rain in Mitchell County where Saint Ansgar reported 5.34 inches. However, the wettest weather in most areas came over the Memorial Day weekend. Heaviest rains were centered over northwest Iowa on the 25th-26th with 8.10 inches at Sioux Center, 8.83 inches near Cleghorn and 8.25 inches at Cherokee. Another area of torrential rain occurred over central Iowa with 8.17 inches at Zearing, 7.44 inches at Marshalltown and 8.04 inches at Grinnell. Flooding was widespread over the state and numerous records for rainfall were set. Rain totals for the month ranged from 3.34 inches at Clinton (0.59 inches below normal) to 16.63 inches at Zearing. Two locations set records for wettest calendar month: Grinnell 16.16 inches this May (old record 14.17 inches in June 1924 among 130 years of record) and Toledo with 14.89 inches (old record 14.73 inches in August 1977 among 119 years of record). The heavy rainfall caused flooding in several areas of central into southeast Iowa. Flooding took place along the Des Moines and Raccoon River basins. Though fairly widespread, the flooding was not major. Several locations remained above flood stage into June.

Guthrie County Bagley 27 0823CST 1245CST 0 0 25.00K 0.00K Flood

Flood waters moving over highway 141 from water flowing out of fields.

Butler County New Hartford 27 0837CST 1245CST 0 0 250.00K 0.00K Flash Flood

Terrace Ave, a gravel road levee, is failing and water is flowing into New Hartford.

The continued series of thunderstorms moved across Iowa during the afternoon of the 26th and through the overnight hours of the 26th into the 27th. A stationary front remained in place from central Nebraska into northern Missouri. The front aloft remained over Iowa, setting the stage for repeated thunderstorm development. The parameters changed little from the previous event. A weakly sheared atmosphere was in place with 25 to 30 kts of shear available. CAPE values were slightly higher, in the 1000 to 2000 J/kg range. Downdraft CAPE ranged from under 400 J/kg over the east part of the CWA to 800 J/kg over the west. A substantial inversion was in place over most of the Des Moines CWA. CAPE in the -10 to -30 C layer of the atmosphere was relatively low, only 200 to 400 J/kg. Precipitable water values were in the 1.3 to 1.6 inch range, or over 2 standard deviations above normal. Thunderstorms from the previous night weakened, only to be replaced by a new round of thunderstorms that developed over northwest Iowa by mid day on the 26th. These storms moved southeast across the state, producing heavy rain across many of the areas that received heavy rainfall the night before. Highway closings were too numerous to mention with many small creeks overflowing their banks and causing flash flooding. There were several reports of road washouts and bridges being washed out. A man driving a SUV was swept away by swift flood waters Monday morning on Westbrook Street in Butler County west of Parkersburg. Severe weather was limited. The storms produced half dollar size hail in Taylor County. Hail also fell in Humboldt and Polk Counties. A funnel cloud was reported in Taylor County as well. One brief tornado touchdown was reported southwest Diagonal in Ringgold County. On the morning of the 27th, as the second MCS decayed, high winds occurred over a small part of north central into central Iowa as a wake low formed. Winds gusted to 58 MPH in Polk County at Ankeny. An RWIS site in Marshall County at Marshalltown recorded a 60 MPH wind gust. Wind damage occurred in Boone County and Hardin Counties. Sustained winds of 40 to 45 MPH were reported in Jasper and Story Counties. Scattered reports of outbuilding and tree damage were received.

Black Hawk County 2 E Benson 27 0845CST 1 N Farmer 31 2359CST 0 0 250.00K 0.00K Flood

140 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central

May 2013 was a wet month across the state. The heavy rainfall brought relief across the state from the drought of the preceding year. The month began with a May record snow event. Snow began in northwest Iowa early on the morning of the 1st with six inches reported at Sibley. Heavy snow shifted to north central Iowa on the night of the 1st into the morning of the 2nd with Forest City and Britt setting state records for one day May snowfall of 11.0 inches (old record 10.0 inches at Le Mars on May 28, 1947). The heavier snow began to shift southward on the night of the 2nd into the morning of the 3rd but not before Osage set a state record for May total snowfall of 13.0 inches. Southern Iowa snow totals included 7.5 inches at Indianola by the morning of the 3rd and 8.0 inches near Promise City in Wayne County. The winter storm system slowly moved back to the west with a few snow flurries persisting into the afternoon of the 4th. The snowfall contained a large amount of water. As it melted, soils were replenished with the stage set for run-off and flooding later in the month. Rain occurred somewhere in the state every day from the 19th through the end of the month. Widespread rain fell on the 19th-20th with heavy rain in Mitchell County where Saint Ansgar reported 5.34 inches. However, the wettest weather in most areas came over the Memorial Day weekend. Heaviest rains were centered over northwest Iowa on the 25th-26th with 8.10 inches at Sioux Center, 8.83 inches near Cleghorn and 8.25 inches at Cherokee. Another area of torrential rain occurred over central Iowa with 8.17 inches at Zearing, 7.44 inches at Marshalltown and 8.04 inches at Grinnell. Flooding was widespread over the state and numerous records for rainfall were set. Rain totals for the month ranged from 3.34 inches at Clinton (0.59 inches below normal) to 16.63 inches at Zearing. Two locations set records for wettest calendar month: Grinnell 16.16 inches this May (old record 14.17 inches in June 1924 among 130 years of record) and Toledo with 14.89 inches (old record 14.73 inches in August 1977 among 119 years of record). The heavy rainfall caused flooding in several areas of central into southeast Iowa. Flooding took place along the Des Moines and Raccoon River basins. Though fairly widespread, the flooding was not major. Several locations remained above flood stage into June.

IAZ061 Jasper 27 0900CST 1000CST 0 0 5.0K 0.00K High Wind

The continued series of thunderstorms moved across Iowa during the afternoon of the 26th and through the overnight hours of the 26th into the 27th. A stationary front remained in place from central Nebraska into northern Missouri. The front aloft remained over Iowa, setting the stage for repeated thunderstorm development. The parameters changed little from the previous event. A weakly sheared atmosphere was in place with 25 to 30 kts of shear available. CAPE values were slightly higher, in the 1000 to 2000 J/kg range. Downdraft CAPE ranged from under 400 J/kg over the east part of the CWA to 800 J/kg over the west. A substantial inversion was in place over most of the Des Moines CWA. CAPE in the -10 to -30 C layer of the atmosphere was relatively low, only 200 to 400 J/kg. Precipitable water values were in the 1.3 to 1.6 inch range, or over 2 standard deviations above normal. Thunderstorms from the previous night weakened, only to be replaced by a new round of thunderstorms that developed over northwest Iowa by mid day on the 26th. These storms moved southeast across the state, producing heavy rain across many of the areas that received heavy rainfall the night before. Highway closings were too numerous to mention with many small creeks overflowing their banks and causing flash flooding. There were several reports of road washouts and bridges being washed out. A man driving a SUV was swept away by swift flood waters Monday morning on Westbrook Street in Butler County west of Parkersburg. Severe weather was limited. The storms produced half dollar size hail in Taylor County. Hail also fell in Humboldt and Polk Counties. A funnel cloud was reported in Taylor County as well. One brief tornado touchdown was reported southwest Diagonal in Ringgold County. On the morning of the 27th, as the second MCS decayed, high winds occurred over a small part of north central into central Iowa as a wake low formed. Winds gusted to 58 MPH in Polk County at Ankeny. An RWIS site in Marshall County at Marshalltown recorded a 60 MPH wind gust. Wind damage occurred in Boone County and Hardin Counties. Sustained winds of 40 to 45 MPH were reported in Jasper and Story Counties. Scattered reports of outbuilding and tree damage were received.

Webster County 3 NW Ft Dodge 27 1000CST 31 2359CST 0 0 100.00K 0.00K Flood

Story County 2 ENE Ames Arpt 27 1315CST 28 1645CST 0 0 100.00K 0.00K Flood

Story County 3 N Ames 27 1630CST 28 0345CST 0 0 50.00K 0.00K Flood

Black Hawk County 2 E Benson 28 0700CST 1 SW La Porte City 31 2359CST 0 0 500.00K 0.00K Flood

141 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Polk County 2 ESE Des Moines 28 1000CST 31 2359CST 0 0 150.00K 0.00K Flood

May 2013 was a wet month across the state. The heavy rainfall brought relief across the state from the drought of the preceding year. The month began with a May record snow event. Snow began in northwest Iowa early on the morning of the 1st with six inches reported at Sibley. Heavy snow shifted to north central Iowa on the night of the 1st into the morning of the 2nd with Forest City and Britt setting state records for one day May snowfall of 11.0 inches (old record 10.0 inches at Le Mars on May 28, 1947). The heavier snow began to shift southward on the night of the 2nd into the morning of the 3rd but not before Osage set a state record for May total snowfall of 13.0 inches. Southern Iowa snow totals included 7.5 inches at Indianola by the morning of the 3rd and 8.0 inches near Promise City in Wayne County. The winter storm system slowly moved back to the west with a few snow flurries persisting into the afternoon of the 4th. The snowfall contained a large amount of water. As it melted, soils were replenished with the stage set for run-off and flooding later in the month. Rain occurred somewhere in the state every day from the 19th through the end of the month. Widespread rain fell on the 19th-20th with heavy rain in Mitchell County where Saint Ansgar reported 5.34 inches. However, the wettest weather in most areas came over the Memorial Day weekend. Heaviest rains were centered over northwest Iowa on the 25th-26th with 8.10 inches at Sioux Center, 8.83 inches near Cleghorn and 8.25 inches at Cherokee. Another area of torrential rain occurred over central Iowa with 8.17 inches at Zearing, 7.44 inches at Marshalltown and 8.04 inches at Grinnell. Flooding was widespread over the state and numerous records for rainfall were set. Rain totals for the month ranged from 3.34 inches at Clinton (0.59 inches below normal) to 16.63 inches at Zearing. Two locations set records for wettest calendar month: Grinnell 16.16 inches this May (old record 14.17 inches in June 1924 among 130 years of record) and Toledo with 14.89 inches (old record 14.73 inches in August 1977 among 119 years of record). The heavy rainfall caused flooding in several areas of central into southeast Iowa. Flooding took place along the Des Moines and Raccoon River basins. Though fairly widespread, the flooding was not major. Several locations remained above flood stage into June.

Monroe County 1 ENE Lovilia 28 1343CST 1443CST 0 0 0.00K 0.00K Heavy Rain

Trained spotter in Lovilia reported 2.5 inches of rain in the past hour.

Dallas County 1 NNW Adel 28 1401CST 2000CST 0 0 200.00K 0.00K Flood

Highway 169 will be closing due to flooding north of Adel. Lucas County 1 W Chariton Muni Arpt 28 1500CST 0 0 0.00K 5.00K Hail (0.75)

Lucas County 1 E Lucas 28 1500CST 0 0 0.00K 5.00K Hail (0.88)

Monroe County 5 ENE Avery 28 1542CST 1552CST 0 0 0.00K 10.00K Hail (1.00)

A few stones slightly larger. Hail piled up in drifts. Some wind with half inch diameter hail with tree limbs down. Hail lasted 10 minutes. Wapello County 3 S Eddyville 28 1555CST 1605CST 0 0 5.00K 5.00K Hail (1.50)

Ringgold County Clearfield 28 1611CST 1621CST 0 0 3.00K 0.00K Hail (1.00)

Monroe County 3 ENE Weller 28 1615CST 2000CST 0 0 100.00K 0.00K Flash Flood

Water over the road from a creek out of its banks on 120th St west of Lovilia. Water was 3 feet deep and moving swiftly across the road.

142 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Ringgold County 3 WSW Ellston 28 1630CST 0 0 0.00K 0.00K Funnel Cloud

Monroe County 2 ENE Lovilia 28 1638CST 2000CST 0 0 150.00K 0.00K Flash Flood

Gravel beginning to wash away a portion of east 19th/115th Trail and a significant amount of standing water west of 14th and south of Lovilia. Decatur County 2 NNE Van Wert 28 1655CST 1705CST 0 0 1.00K 5.00K Hail (1.00)

Union County 1 SE Creston 28 1705CST 0 0 2.00K 5.00K Hail (1.00)

Union County 1 W Creston 28 1707CST 0 0 2.00K 5.00K Hail (1.00)

Union County 1 SE Creston 28 1708CST 0 0 5.00K 5.00K Hail (1.50)

Wayne County 1 WSW Humeston 28 1725CST 0 0 5.00K 5.00K Hail (1.25)

Social Media report of quarter to half dollar size hail in Humeston.

Madison County 1 N Winterset 28 1754CST 1755CST 0 0 1.00K 0.00K Hail (1.00)

Monroe County 6 NE Avery 28 1810CST 2000CST 0 0 200.00K 0.00K Flash Flood

Public reported about 10 inches of rain along highway 137 with flash flooding a few miles southwest of Eddyville.

Lucas County 5 E Russell 28 1811CST 2000CST 0 0 50.00K 0.00K Flash Flood

Several spots have fast flowing water 3 to 4 inches deep across 500th Ave or County line between Lucas and Monroe County.

Wapello County 2 WNW Ottumwa 28 1820CST 2330CST 0 0 200.00K 0.00K Flash Flood

Spotter reports that flash flooding with water 2 to 5 feet deep swept down the street carrying logs and debris with it. At the bottom of the street there was a car in the water with a depth of 5 feet.

Monroe County 2 ENE Melrose 28 1835CST 29 0330CST 0 0 250.00K 0.00K Flood

Trained spotter reports that all streets in Melrose are now under water. Some spots are standing and some flowing. Water depth 6 to 8 inches.

143 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Wapello County 3 S (OTM)Ottumwa Indstrl 28 1845CST 2330CST 0 0 200.00K 0.00K Flash Flood

Large propane tank washed away along Keb Lane just north of Ottumwa.

Wapello County 2 NNE Rutledge 28 1845CST 2330CST 0 0 50.00K 0.00K Flash Flood

Water flowing over 74th St near Albia Road. Wapello County 2 ESE Bidwell 28 1900CST 2 NNE Rutledge 2330CST 0 0 100.00K 0.00K Flash Flood

Flood damage to the railroad tracks near 87th St and Highway 34.

Monroe County 1 WNW Melrose 28 1913CST 2000CST 0 0 500.00K 0.00K Flash Flood

Monroe County law enforcement reports that downtown Melrose and most of the streets in town were under water with water flowing into some buildings, including the community center with water surrounding several trailer homes. Most streets were impassible.

Monroe County 1 ENE Lovilia 28 1913CST 2000CST 0 0 150.00K 0.00K Flash Flood

Monroe County law enforcement reports that several streets in and around Lovilia remain closed due to water over roads. The intersections of 110th, 115th and 130th are closed due to water over the road.

A very unstable airmass was in place over Iowa. The stationary front that had been south of the state over the past several days began to lift north and extended from southwest into east central Iowa on the afternoon of the 28th. Temperatures warmed into the low to mid 80s, with dewpoints in the upper 60s to low 70s. CAPE increased to between 3000 and 4000 J/kg by mid afternoon. Downdraft CAPE rose to 800 to 1000 J/kg, while CAPE in the -10 to -30 C layer of the atmosphere was in the 600 to 800 J/kg range. The freezing level was still a relatively low 12,700 feet. A 35 kt low level jet was in place with considerable moisture transport. Precipitable water values increased to 1.4 to 1.7 inches, or about two standard deviations above normal. The atmosphere was fairly strongly sheared with 45 to 50 kts of available shear. Thunderstorms developed around the warm front and became severe quite quickly. A funnel cloud was observed in Ringgold County. The primary mode of severe weather during the late afternoon was hail with numerous reports of three quarter to one and one half inch diameter hail. Two and one half inch diameter hail fell in Monroe County north of Lovilia. Flash flooding occurred in Monroe County, where 3 inches of rain fell in a short period of time. An unofficial report of 10 inches of rain was received from southwest of Eddyville in Monroe County. Major flooding occurred in the area. Numerous roads and highways were flooded across southern Iowa, some with water of 3 to 5 feet in depth. Road washouts were reported as well as culvert washouts.

Wapello County 3 S Eddyville 28 1920CST 29 1330CST 0 0 150.00K 0.00K Flood

144 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central

May 2013 was a wet month across the state. The heavy rainfall brought relief across the state from the drought of the preceding year. The month began with a May record snow event. Snow began in northwest Iowa early on the morning of the 1st with six inches reported at Sibley. Heavy snow shifted to north central Iowa on the night of the 1st into the morning of the 2nd with Forest City and Britt setting state records for one day May snowfall of 11.0 inches (old record 10.0 inches at Le Mars on May 28, 1947). The heavier snow began to shift southward on the night of the 2nd into the morning of the 3rd but not before Osage set a state record for May total snowfall of 13.0 inches. Southern Iowa snow totals included 7.5 inches at Indianola by the morning of the 3rd and 8.0 inches near Promise City in Wayne County. The winter storm system slowly moved back to the west with a few snow flurries persisting into the afternoon of the 4th. The snowfall contained a large amount of water. As it melted, soils were replenished with the stage set for run-off and flooding later in the month. Rain occurred somewhere in the state every day from the 19th through the end of the month. Widespread rain fell on the 19th-20th with heavy rain in Mitchell County where Saint Ansgar reported 5.34 inches. However, the wettest weather in most areas came over the Memorial Day weekend. Heaviest rains were centered over northwest Iowa on the 25th-26th with 8.10 inches at Sioux Center, 8.83 inches near Cleghorn and 8.25 inches at Cherokee. Another area of torrential rain occurred over central Iowa with 8.17 inches at Zearing, 7.44 inches at Marshalltown and 8.04 inches at Grinnell. Flooding was widespread over the state and numerous records for rainfall were set. Rain totals for the month ranged from 3.34 inches at Clinton (0.59 inches below normal) to 16.63 inches at Zearing. Two locations set records for wettest calendar month: Grinnell 16.16 inches this May (old record 14.17 inches in June 1924 among 130 years of record) and Toledo with 14.89 inches (old record 14.73 inches in August 1977 among 119 years of record). The heavy rainfall caused flooding in several areas of central into southeast Iowa. Flooding took place along the Des Moines and Raccoon River basins. Though fairly widespread, the flooding was not major. Several locations remained above flood stage into June.

Wapello County 1 NW Chillicothe 28 1930CST 2330CST 0 0 150.00K 0.00K Flash Flood

Flood damage to the railroad tracks near the 12000 block on Rock Bluff Road due to the South Avery Creek.

Appanoose County Centerville Arpt 28 1935CST 0 0 10.00K 0.00K Thunderstorm Wind (56MG) Note: The measured wind gust of 56 knots is equivalent to 64 mph.

Appanoose County 1 W Exline 28 1938CST 0 0 0.00K 5.00K Hail (0.75)

Also included a 40 to 50 MPH wind. Wapello County 1 NW Ottumwa 28 1945CST 2330CST 0 0 250.00K 0.00K Flash Flood

Trained spotter reported flash flooding along 140th Ave on the north side of Ottumwa. Water moving down the road 1 to 2 feet deep. Appanoose County Cincinnati 28 1947CST 0 0 0.00K 5.00K Hail (0.88)

Wayne County 1 SE Millerton 28 1955CST 29 0030CST 0 0 50.00K 0.00K Flash Flood

Water over County Road J22 just east of Millerton. Wayne County 1 N Seymour 28 2005CST 2130CST 0 0 50.00K 0.00K Flash Flood

Water across County Road S60 just north of Seymour. Wapello County 3 WNW Ottumwa 28 2015CST 2330CST 0 0 50.00K 0.00K Flash Flood

Culvert washed out on Rock Bluff Road near 155th Ave.

145 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Appanoose County 5 SW Jerome 28 2029CST 29 0030CST 0 0 25.00K 0.00K Flash Flood

Water over County Highway J46 between 105th Ave and 110th Ave.

Lucas County 6 SW Russell 28 2100CST 2330CST 0 0 50.00K 0.00K Flash Flood

Water over 242nd Ave due to Wolf Creek flooding. Lucas County 4 SSE Chariton 28 2100CST 29 0330CST 0 0 200.00K 0.00K Flood

Water over 450th St due to the Chariton River. Lucas County 2 SW Williamson 28 2125CST 2330CST 0 0 50.00K 0.00K Flash Flood

Water over 510th St just north of Chariton from the Little White Breast Creek.

A very unstable airmass was in place over Iowa. The stationary front that had been south of the state over the past several days began to lift north and extended from southwest into east central Iowa on the afternoon of the 28th. Temperatures warmed into the low to mid 80s, with dewpoints in the upper 60s to low 70s. CAPE increased to between 3000 and 4000 J/kg by mid afternoon. Downdraft CAPE rose to 800 to 1000 J/kg, while CAPE in the -10 to -30 C layer of the atmosphere was in the 600 to 800 J/kg range. The freezing level was still a relatively low 12,700 feet. A 35 kt low level jet was in place with considerable moisture transport. Precipitable water values increased to 1.4 to 1.7 inches, or about two standard deviations above normal. The atmosphere was fairly strongly sheared with 45 to 50 kts of available shear. Thunderstorms developed around the warm front and became severe quite quickly. A funnel cloud was observed in Ringgold County. The primary mode of severe weather during the late afternoon was hail with numerous reports of three quarter to one and one half inch diameter hail. Two and one half inch diameter hail fell in Monroe County north of Lovilia. Flash flooding occurred in Monroe County, where 3 inches of rain fell in a short period of time. An unofficial report of 10 inches of rain was received from southwest of Eddyville in Monroe County. Major flooding occurred in the area. Numerous roads and highways were flooded across southern Iowa, some with water of 3 to 5 feet in depth. Road washouts were reported as well as culvert washouts.

Lucas County 3 WSW Russell 29 0630CST 1330CST 0 0 50.00K 0.00K Flood

Polk County 7 ENE Bondurant 29 0630CST 5 NE Santiago 31 2359CST 0 0 100.00K 0.00K Flood

May 2013 was a wet month across the state. The heavy rainfall brought relief across the state from the drought of the preceding year. The month began with a May record snow event. Snow began in northwest Iowa early on the morning of the 1st with six inches reported at Sibley. Heavy snow shifted to north central Iowa on the night of the 1st into the morning of the 2nd with Forest City and Britt setting state records for one day May snowfall of 11.0 inches (old record 10.0 inches at Le Mars on May 28, 1947). The heavier snow began to shift southward on the night of the 2nd into the morning of the 3rd but not before Osage set a state record for May total snowfall of 13.0 inches. Southern Iowa snow totals included 7.5 inches at Indianola by the morning of the 3rd and 8.0 inches near Promise City in Wayne County. The winter storm system slowly moved back to the west with a few snow flurries persisting into the afternoon of the 4th. The snowfall contained a large amount of water. As it melted, soils were replenished with the stage set for run-off and flooding later in the month. Rain occurred somewhere in the state every day from the 19th through the end of the month. Widespread rain fell on the 19th-20th with heavy rain in Mitchell County where Saint Ansgar reported 5.34 inches. However, the wettest weather in most areas came over the Memorial Day weekend. Heaviest rains were centered over northwest Iowa on the 25th-26th with 8.10 inches at Sioux Center, 8.83 inches near Cleghorn and 8.25 inches at Cherokee. Another area of torrential rain occurred over central Iowa with 8.17 inches at Zearing, 7.44 inches at Marshalltown and 8.04 inches at Grinnell. Flooding was widespread over the state and numerous records for rainfall were set. Rain totals for the month ranged from 3.34 inches at Clinton (0.59 inches below normal) to 16.63 inches at Zearing. Two locations set records for wettest calendar month: Grinnell 16.16 inches this May (old record 14.17 inches in June 1924 among 130 years of record) and Toledo with 14.89 inches (old record 14.73 inches in August 1977 among 119 years of record). The heavy rainfall caused flooding in several areas of central into southeast Iowa. Flooding took place along the Des Moines and Raccoon River basins. Though fairly widespread, the flooding was not major. Several locations remained above flood stage into June.

146 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Guthrie County Guthrie Center 29 1000CST 0 0 0.00K 0.00K Hail (0.88)

Greene County Rippey 29 1024CST 1029CST 0 0 3.00K 0.00K Hail (1.00)

Nickel to quarter size hail was reported for several minutes.

Greene County Rippey 29 1029CST 1032CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail and smaller lasted 3 minutes. Boone County 5 WSW Luther 29 1039CST 1040CST 0 0 1.00K 5.00K Hail (1.00)

Boone County 2 S Ogden 29 1041CST 0 0 5.00K 25.00K Hail (1.50)

Hail covered the ground. Boone County 2 ENE Ogden 29 1059CST 0 0 0.00K 5.00K Hail (0.88)

Boone County 1 N Ogden 29 1116CST 0 0 0.00K 0.00K Hail (0.88)

Story County 1 WSW Roland 29 1157CST 0 0 0.00K 5.00K Hail (1.00)

Story County 2 SE Roland 29 1200CST 1205CST 0 0 0.00K 5.00K Hail (1.00)

Hardin County Steamboat Rock 29 1225CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Butler County 6 E Aredale 29 1255CST 0 0 150.00K 0.00K Thunderstorm Wind (61EG)

Significant roof damage to a containment building. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Butler County Greene 29 1301CST 0 0 600.00K 0.00K Thunderstorm Wind (70EG)

Large steel outbuilding was destroyed. Eighteen houses sustained structural damage.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Butler County 2 NNE Wilmar 29 1301CST 0 0 150.00K 0.00K Thunderstorm Wind (61EG)

Small car and tractor blown off highway. Many large trees down on houses. Numerous trees up to 4 feet in diameter and power lines down in the city of Greene with the entire city without power.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

147 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Madison County 3 WSW Earlham 29 1329CST 0 0 0.00K 5.00K Hail (1.00)

Polk County 1 NW Urbandale 29 1336CST 1341CST 0 0 25.00K 0.00K Thunderstorm Wind (55MG)

Measured wind for 5 minutes. Note: The measured wind gust of 55 knots is equivalent to 63 mph. Polk County 1 SW Rider 29 1345CST 0 0 15.00K 0.00K Thunderstorm Wind (55MG) Note: The measured wind gust of 55 knots is equivalent to 63 mph.

Polk County 1 SE Ankeny 29 1357CST 0 0 0.00K 0.00K Hail (0.75)

Polk County 1 WSW Polk City 29 1400CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Franklin County 4 ESE Hansell 29 1406CST 0 0 25.00K 0.00K Thunderstorm Wind (52EG)

Winds from a decaying thunderstorms blew a tree onto a house. A porch was also damaged by the high winds.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Polk County 1 SE Bondurant 29 1412CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Public estimated winds of 60 MPH. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Story County 1 SSW Iowa Center 29 1417CST 0 0 0.00K 5.00K Hail (0.88)

Jasper County 1 E Valeria 29 1438CST 0 0 5.00K 25.00K Hail (1.50)

Dallas County 1 NE Shuler Mine 29 1445CST 2000CST 0 0 10.00K 0.00K Flash Flood

A section of a gravel road was under water. Jasper County 2 NW Mingo 29 1445CST 0 0 0.00K 10.00K Thunderstorm Wind (52EG)

Estimated winds of 60 MPH along with pea size hail. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Marshall County 1 SSW Marshalltown 29 1453CST 0 0 5.00K 0.00K Thunderstorm Wind (59MG) Note: The measured wind gust of 59 knots is equivalent to 68 mph.

Marshall County 1 WSW Gilman Arpt 29 1500CST 0 0 0.00K 5.00K Hail (1.00)

148 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Marshall County 1 E Gilman 29 1503CST 0 0 5.00K 25.00K Hail (1.25)

Marshall County 1 E Gilman 29 1503CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A trained spotter estimated 60 MPH winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Polk County 1 SSE Rider 29 1510CST 1900CST 0 0 25.00K 0.00K Flash Flood

Flooding occurring at Cutty's Campground. People were unable to enter or exit the campground.

Marshall County 3 ENE Luray 29 1522CST 3 NNW Dillon 2030CST 0 0 200.00K 0.00K Flash Flood

Lots of street flooding in town. Many roads in Marshall County under water.

Story County 1 S Zearing 29 1524CST 2030CST 0 0 250.00K 0.00K Flash Flood

Many roads in the east part of the county experiencing flooding. Water over parts of Highway 65 in Zearing.

Hardin County 1 S Eldora 29 1526CST 2 NE Eldora Muni Arpt 2030CST 0 0 200.00K 0.00K Flash Flood

Water over many county roads in the east part of the county.

Grundy County Holland 29 1529CST 1930CST 0 0 450.00K 0.00K Flash Flood

Many county roads closed due to flooding. Story County 4 SW Colo 29 1530CST 2030CST 0 0 50.00K 0.00K Flash Flood

Water over the road near Hickory Grove Park on 670th Ave and 650th near 260th St.

Black Hawk County 1 SSW Waterloo 29 1530CST 0 0 1.00K 5.00K Hail (1.00)

Marshall County 1 S Dunbar 29 1530CST 0 0 0.00K 5.00K Hail (1.00)

Story County 1 SSW Iowa Center 29 1530CST 1700CST 0 0 0.00K 0.00K Heavy Rain

Trained spotter reports 3.1 inches of rain fell in an hour and a half ending at 1700 CST. Several reports of roads washed out in the area.

149 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Black Hawk County Cedar Falls 29 1534CST 0 0 0.00K 0.00K Hail (0.88)

Black Hawk County Cedar Falls 29 1534CST 0 0 100.00K 0.00K Thunderstorm Wind (56EG)

Many trees were down in the residential areas of the Cedar Falls and Waterloo areas. Dime to nickel size hail was also reported. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Black Hawk County Cedar Falls 29 1538CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Power lines were reported down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Black Hawk County 1 S Waterloo 29 1538CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Trees were reported down from high wind. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Black Hawk County 1 SSE Waterloo 29 1539CST 0 0 0.00K 0.00K Hail (0.75)

Black Hawk County 1 SSW Castle Hill 29 1549CST 2130CST 0 0 200.00K 0.00K Flash Flood

University Ave near Town House Tenderloins flooded. At least one care was submerged.

Marshall County Gilman 29 1550CST 0 0 0.00K 5.00K Hail (1.00)

Black Hawk County 3 E Dunkerton Davis Arpt 29 1555CST 0 0 5.00K 0.00K Thunderstorm Wind (50MG)

Measured by roof top anemometer at the intersection of Highway 281 and Gresham Rd.

Note: The measured wind gust of 50 knots is equivalent to 58 mph. Bremer County 1 E Waverly 29 1600CST 3 ENE Babcock 2130CST 0 0 300.00K 0.00K Flash Flood

Several roads across the county have water over them from small creeks and streams. Flooding reported in the cities.

Black Hawk County 1 SE Waterloo 29 1604CST 2130CST 0 0 75.00K 0.00K Flash Flood

A car stalled in flash flood waters near the Grout Museum. Black Hawk County 2 WSW Evansdale 29 1611CST 2130CST 0 0 250.00K 0.00K Flash Flood

Flash flooding at Black Hawk and Ansborough Ave. Southbound U.S. 218 at Washington and Mullan Ave flooded.

Greene County 6 SW Jefferson 29 1631CST 1900CST 0 0 20.00K 0.00K Flash Flood

Water over the road at K Ave and 250th caused by flash flooding.

150 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Story County 1 SSW Iowa Center 29 1700CST 2030CST 0 0 250.00K 0.00K Flash Flood

Several roads were washed out by flash flooding. Story County Nevada 29 1704CST 2030CST 0 0 25.00K 0.00K Flash Flood

Indian Creek is reportedly out of its banks in Nevada. Tama County 4 SSE Traer Muni Arpt 29 1716CST 4 SE Montour 2130CST 0 0 450.00K 0.00K Flash Flood

Several roads were covered with water across the county. Polk County 2 N Ankeny 29 1750CST 1900CST 0 0 10.00K 0.00K Flash Flood

Water from the field was flowing across NW 30th St west of State Street in Ankeny.

Story County 1 SSW Zearing 29 1824CST 2030CST 0 0 100.00K 0.00K Flash Flood

Minerva Creek in Zearing out of its banks and flooding parts of town.

Grundy County 3 S Morrison 29 2051CST 3 ESE Stout 30 0145CST 0 0 250.00K 0.00K Flood

Still reporting major flooding throughout the county with many county roads and some city streets closed due to flooding. Highway 14 south of Grundy Center is closed as is the Highway 20 exit at Wellsburg.

Black Hawk County Hudson 30 0737CST 1745CST 0 0 200.00K 0.00K Flood

Flooding of areas streams and creeks resulted in flooding in Hudson and Dunkerton with volunteer evacuations underway. Some roads remain flooded. A warm front moved slowly north into Iowa during the overnight hours of the 28th into the 29th. The airmass became unstable as surface temperatures warmed into the low 80s, with dewpoints around 70 along and south of the front. CAPE rose to around 3000 J/kg with a downdraft CAPE of 900 J/kg, and CAPE in the -10 to -30 C layer of the atmosphere of 600 to 800 J/kg. The lifted index fell to -9 C. Considerable moisture was available with the precipitable water values around 1.7 inches. The atmosphere was moderately sheared with 35 to 40 kts of shear available. Thunderstorms developed rapidly around mid day and produced very heavy rainfall, as well as high winds and hail. Most of the hail was somewhat limited in spite of the relatively low freezing level of 12,600 feet. The LC was relatively low at 1000 meters, however there were no reports of tornadoes. Wind and heavy rainfall was the dominant weather type. Hail was limited to penny size up to 1.5 inches in diameter. Several of the storms produced 60 to 70 MPH winds, downing numerous trees and power lines. The most extensive damage was in Butler County. Winds estimated around 80 MPH caused considerable damage to a containment build and significant structural damage to 18 houses in the town of Greene. Damage in town was around $500,000. A band of 2 to 4 inches of rainfall was observed from southwest through central into northeast Iowa. This caused flash flooding as the rain fell on already saturated soil. There were numerous roads under water from the flood waters. In the Waterloo area, the water was deep enough to submerge cars and cause many motorists to stall out and become stranded buy the flood waters. In the Hudson areas of Black Hawk County, flooding in town occurred as the levy partially failed on the river. Officials in Tama County reported that a bridge was washed out, at a cost of $75,000, and at least $150,000 in damage to secondary roads. In Grundy County, initial estimates of damage to county secondary roads was at least $170,000. As of the 29th of May, Governor Terry Branstad declared 15 Iowa counties disaster areas due to the storms and flooding. They included Buena Vista, Cherokee, Butler, Floyd, Grundy, Johnson, Iowa, Jasper, Marshall, Mitchell, Plymouth, Poweshiek, Sioux, Tama, Wapello, and Wright.

151 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Dallas County 2 NNE Van Meter 30 1345CST 2300CST 0 0 25.00K 0.00K Flood

May 2013 was a wet month across the state. The heavy rainfall brought relief across the state from the drought of the preceding year. The month began with a May record snow event. Snow began in northwest Iowa early on the morning of the 1st with six inches reported at Sibley. Heavy snow shifted to north central Iowa on the night of the 1st into the morning of the 2nd with Forest City and Britt setting state records for one day May snowfall of 11.0 inches (old record 10.0 inches at Le Mars on May 28, 1947). The heavier snow began to shift southward on the night of the 2nd into the morning of the 3rd but not before Osage set a state record for May total snowfall of 13.0 inches. Southern Iowa snow totals included 7.5 inches at Indianola by the morning of the 3rd and 8.0 inches near Promise City in Wayne County. The winter storm system slowly moved back to the west with a few snow flurries persisting into the afternoon of the 4th. The snowfall contained a large amount of water. As it melted, soils were replenished with the stage set for run-off and flooding later in the month. Rain occurred somewhere in the state every day from the 19th through the end of the month. Widespread rain fell on the 19th-20th with heavy rain in Mitchell County where Saint Ansgar reported 5.34 inches. However, the wettest weather in most areas came over the Memorial Day weekend. Heaviest rains were centered over northwest Iowa on the 25th-26th with 8.10 inches at Sioux Center, 8.83 inches near Cleghorn and 8.25 inches at Cherokee. Another area of torrential rain occurred over central Iowa with 8.17 inches at Zearing, 7.44 inches at Marshalltown and 8.04 inches at Grinnell. Flooding was widespread over the state and numerous records for rainfall were set. Rain totals for the month ranged from 3.34 inches at Clinton (0.59 inches below normal) to 16.63 inches at Zearing. Two locations set records for wettest calendar month: Grinnell 16.16 inches this May (old record 14.17 inches in June 1924 among 130 years of record) and Toledo with 14.89 inches (old record 14.73 inches in August 1977 among 119 years of record). The heavy rainfall caused flooding in several areas of central into southeast Iowa. Flooding took place along the Des Moines and Raccoon River basins. Though fairly widespread, the flooding was not major. Several locations remained above flood stage into June.

Davis County Pulaski 30 1355CST 0 0 100.00K 0.00K Thunderstorm Wind (61EG)

Numerous large trees and power lines down in town. Many roofs damaged by falling trees.

A strong shortwave moved through the base of the parent upper level trough kicking off a line of showers and thunderstorms stretching from south central Iowa into central and western Missouri by early afternoon. A dry line was located further west across eastern Nebraska into NE Kansas. The airmass became weakly unstable as surface temperatures warmed into the mid 70s with dewpoints in the mid 60s. CAPE values were between 500 and 1000 J/kg with a downdraft CAPE of 600 J/kg, and 100 J/kg of CAPE in the -10 to -30 C layer of the atmosphere. The lifted index was around -3 C and available moisture had decreased some from previous days with precipitable water values around 1.5 inches. The atmosphere was moderately sheared with 40 kts of deep layer shear available. The line of storms intensified toward mid to late afternoon as the atmosphere destabilized. The northern end of the line moved through Davis County with damaging winds occurring in the Pulaski area. There were numerous large trees and power lines down in town with many roofs damaged by the falling trees. A line of storms had developed earlier in the day along the dry line in Nebraska and Kansas. The line of storms pushed into southwestern Iowa by late evening. One storm intensified briefly on the leading edge and produced wind damage in the town of Atlantic and pea size hail. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Polk County 2 N (DSM)Des Moines Intl 30 2245CST 2 E West Des Moines 31 2359CST 0 0 150.00K 0.00K Flood

Polk County Windsor Hgts 31 0600CST 2359CST 0 0 25.00K 0.00K Flood

152 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central

May 2013 was a wet month across the state. The heavy rainfall brought relief across the state from the drought of the preceding year. The month began with a May record snow event. Snow began in northwest Iowa early on the morning of the 1st with six inches reported at Sibley. Heavy snow shifted to north central Iowa on the night of the 1st into the morning of the 2nd with Forest City and Britt setting state records for one day May snowfall of 11.0 inches (old record 10.0 inches at Le Mars on May 28, 1947). The heavier snow began to shift southward on the night of the 2nd into the morning of the 3rd but not before Osage set a state record for May total snowfall of 13.0 inches. Southern Iowa snow totals included 7.5 inches at Indianola by the morning of the 3rd and 8.0 inches near Promise City in Wayne County. The winter storm system slowly moved back to the west with a few snow flurries persisting into the afternoon of the 4th. The snowfall contained a large amount of water. As it melted, soils were replenished with the stage set for run-off and flooding later in the month. Rain occurred somewhere in the state every day from the 19th through the end of the month. Widespread rain fell on the 19th-20th with heavy rain in Mitchell County where Saint Ansgar reported 5.34 inches. However, the wettest weather in most areas came over the Memorial Day weekend. Heaviest rains were centered over northwest Iowa on the 25th-26th with 8.10 inches at Sioux Center, 8.83 inches near Cleghorn and 8.25 inches at Cherokee. Another area of torrential rain occurred over central Iowa with 8.17 inches at Zearing, 7.44 inches at Marshalltown and 8.04 inches at Grinnell. Flooding was widespread over the state and numerous records for rainfall were set. Rain totals for the month ranged from 3.34 inches at Clinton (0.59 inches below normal) to 16.63 inches at Zearing. Two locations set records for wettest calendar month: Grinnell 16.16 inches this May (old record 14.17 inches in June 1924 among 130 years of record) and Toledo with 14.89 inches (old record 14.73 inches in August 1977 among 119 years of record). The heavy rainfall caused flooding in several areas of central into southeast Iowa. Flooding took place along the Des Moines and Raccoon River basins. Though fairly widespread, the flooding was not major. Several locations remained above flood stage into June.

Worth County 3 WNW Grafton 31 2010CST 0 0 1.00K 5.00K Hail (1.00)

Worth County 1 SE Kensett 31 2014CST 0 0 1.00K 5.00K Hail (1.00)

Report was relayed by KAAL TV. A possible funnel cloud was observed as well.

Worth County 1 N Manly 31 2025CST 0 0 10.00K 15.00K Hail (1.75)

A cold front dropped slowly southeast into Iowa. The severe parameters were not strong, however a narrow line of thunderstorms developed over north central Iowa into western Wisconsin. The storms trained along a slow moving line. Shear was strong with 65 kts of available shear. CAPE was a little over 1500 J/kg, with around 400 J/kg of CAPE available in the -10 to -30 C layer of the atmosphere. The storms produced hail up to golf ball size over north central Iowa. They also produced heavy rainfall of 2 to 3 inches in a short period of time in parts of Worth County. Antecedent soil conditions were nearly saturated. The heavy rains caused road closings as the water flooded over county roads.

Cass County Atlantic 31 2030CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Pea size hail with 5 inch diameter tree branches down in town.

A strong shortwave moved through the base of the parent upper level trough kicking off a line of showers and thunderstorms stretching from south central Iowa into central and western Missouri by early afternoon. A dry line was located further west across eastern Nebraska into NE Kansas. The airmass became weakly unstable as surface temperatures warmed into the mid 70s with dewpoints in the mid 60s. CAPE values were between 500 and 1000 J/kg with a downdraft CAPE of 600 J/kg, and 100 J/kg of CAPE in the -10 to -30 C layer of the atmosphere. The lifted index was around -3 C and available moisture had decreased some from previous days with precipitable water values around 1.5 inches. The atmosphere was moderately sheared with 40 kts of deep layer shear available. The line of storms intensified toward mid to late afternoon as the atmosphere destabilized. The northern end of the line moved through Davis County with damaging winds occurring in the Pulaski area. There were numerous large trees and power lines down in town with many roofs damaged by the falling trees. A line of storms had developed earlier in the day along the dry line in Nebraska and Kansas. The line of storms pushed into southwestern Iowa by late evening. One storm intensified briefly on the leading edge and produced wind damage in the town of Atlantic and pea size hail. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Worth County 1 SSW Bolan 31 2042CST 0 0 1.00K 5.00K Hail (1.25)

Worth County 3 ESE Bolan 31 2049CST 0 0 0.00K 5.00K Hail (1.00)

A spotter reported penny to nickel size hail with a few quarters mixed in.

153 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Worth County Grafton 31 2116CST 0 0 2.00K 0.00K Hail (1.00)

Cerro Gordo County 1 N Mason City 31 2150CST 0 0 0.00K 5.00K Hail (1.00)

Nickel to quarter size hail falling along with torrential rain.

Worth County Grafton 31 2150CST 0 0 2.00K 0.00K Hail (1.00)

This was the third wave of nickel to quarter size hail that moved through the area.

Franklin County 1 W Popejoy 31 2219CST 0 0 0.00K 5.00K Hail (1.00)

A trained spotter reported dime to quarter size hail. A cold front dropped slowly southeast into Iowa. The severe parameters were not strong, however a narrow line of thunderstorms developed over north central Iowa into western Wisconsin. The storms trained along a slow moving line. Shear was strong with 65 kts of available shear. CAPE was a little over 1500 J/kg, with around 400 J/kg of CAPE available in the -10 to -30 C layer of the atmosphere. The storms produced hail up to golf ball size over north central Iowa. They also produced heavy rainfall of 2 to 3 inches in a short period of time in parts of Worth County. Antecedent soil conditions were nearly saturated. The heavy rains caused road closings as the water flooded over county roads.

IOWA, East Central and Southeast Muscatine County Muscatine Muni Arpt 19 1110CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

Peak wind gust measured by the Muscatine ASOS. Note: The measured wind gust of 53 knots is equivalent to 61 mph. Clinton County 4 SSW Goose Lake 19 1230CST 0 0 0.00K 0.00K Hail (0.75)

Pea to dime size hail. Des Moines County 1 SSE Lenox Park 19 1605CST 0 0 0.00K 0.00K Hail (1.75)

Spotter forwarded pictures of golfball size hail from a friend in Burlington.

Des Moines County 1 E Burlington Arpt 19 1606CST 0 0 0.00K 0.00K Hail (1.00)

Des Moines County 1 SSE Lenox Park 19 1607CST 0 0 0.00K 0.00K Hail (1.75)

East of the Burlington Airport. Des Moines County 1 NE Burlington Arpt 19 1608CST 0 0 0.00K 0.00K Hail (1.50)

Des Moines County 1 ENE Burlington Arpt 19 1609CST 0 0 0.00K 0.00K Hail (1.00)

Des Moines County 2 WSW Burlington 19 1609CST 0 0 0.00K 0.00K Hail (0.75)

Dime size hail.

154 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast Lee County 1 W Keokuk 19 1625CST 0 0 0.00K 0.00K Hail (1.75)

Lee County 2 WNW Keokuk 19 1628CST 0 0 0.00K 0.00K Hail (1.75)

Lee County 2 SSE Mooar 19 1634CST 0 0 0.00K 0.00K Hail (0.88)

Spotter reported nickel size hail. Des Moines County 1 SSE Lenox Park 19 1645CST 0 0 10.00K 0.00K Lightning

A garage was struck by lightning at 2640 South Main Street in Burlington resulting in a structure fire.

Lee County 1 W Keokuk 19 1700CST 0 0 0.00K 0.00K Hail (2.75)

Spotter reported baseball size hail knocked out sky lights at the Walmart store in northeast Keokuk. Golfball to baseball size hail was reported on the north end of the city, with nickel to quarter size hail on the south end of the city.

Scott County 1 N Walcott 19 1704CST 0 0 0.00K 0.00K Hail (1.00)

Relayed by Scott County Sheriff's office. Scott County 1 N Walcott 19 1704CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Report relayed by the Scott county sheriff's office. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Scott County 2 NNW Davenport 19 1728CST 0 0 0.00K 0.00K Hail (1.50)

Hail reported at 112th Avenue and U.S. 61 in Davenport via Facebook.

Scott County 1 W West Lake Park 19 1728CST 0 0 0.00K 0.00K Hail (1.75)

Golfball size hail reported by a NWS employee about 0.5 mile west of West Lake Park.

Scott County 1 W Davenport 19 1729CST 0 0 0.00K 0.00K Hail (1.00)

Pea to quarter size hail reported along with wind gusts over 45 mph.

Scott County 3 WNW Davenport 19 1730CST 0 0 0.00K 0.00K Hail (1.00)

Scott County 3 NNW West Lake Park 19 1732CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Spotter reported 56 mph wind gusts along with nickel size hail.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

155 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast Scott County 3 NW Davenport 19 1734CST 0 0 0.00K 0.00K Hail (1.00)

Pea to quarter size hail west side of Davenport near Kimberly Road and Fairmont Avenue.

Scott County Davenport Arpt 19 1741CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)

A peak wind gust of 56 mph was measured by the Davenport Airport ASOS.

Note: The measured wind gust of 52 knots is equivalent to 60 mph. Scott County 1 E Bettendorf 19 1742CST 0 0 0.00K 0.00K Hail (0.75)

Scott County 4 SW Davenport Arpt 19 1742CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Trees were reported down along Division Street to Central Park Avenue to 35th street in Davenport. The street was blocked by the fallen trees at some locations. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Scott County 2 NNE Bettendorf 19 1748CST 0 0 0.00K 0.00K Hail (0.88)

Scott County 1 WNW Panorama Park 19 1750CST 0 0 0.00K 0.00K Hail (0.88)

Jackson County 2 SE Maquoketa 19 1800CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Multiple 1 foot diameter trees were snapped. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Jefferson County 1 ESE Lockridge 19 1920CST 0 0 0.00K 0.00K Hail (1.75)

Report relayed by the sheriff's office. Jefferson County 3 NE Four Corners 19 1930CST 0 0 0.00K 0.00K Hail (1.00)

Spotter reported pea to quarter size hail. Washington County 5 SSE West Chester 19 1954CST 0 0 0.00K 0.00K Hail (1.75)

A trained spotter reported golf ball size hail near Ainsworth.

Washington County 1 E Washington 19 2010CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A COOP observer reported 3 inch diameter tree limbs down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Buchanan County 2 SW Independence 19 2020CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)

A spotter measured 60 mph winds near the Highway 20 exit on the west side of Independence.

Note: The measured wind gust of 52 knots is equivalent to 60 mph.

156 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast Buchanan County 1 W Independence 19 2026CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Trained spotter reported wind gust of 66 mph. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Buchanan County 1 E Independence Arpt 19 2035CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

AWOS measured 58 mph winds at Independence. Note: The measured wind gust of 50 knots is equivalent to 58 mph. Buchanan County 1 W Independence 19 2035CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

The emergency manager reported a downburst with winds more than 70 mph struck Independence. The northwest side of town sustained the most damage with trees down, power poles snapped and signs blown down.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Keokuk County 1 W Sigourney 19 2100CST 2120CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

The emergency manager reported widepread wind damage across Keokuk county which occurred between 10 pm and 1020 pm. Transmission lines were snapped near and east of Sigourney along with some buildings damaged.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Iowa County North English 19 2120CST 2135CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

The emergency manager reported widespread wind damage at North English, Millersburg, Parnell and Williamsburg. The damage occurred between 1020 pm and 1035 pm. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Johnson County 1 SE Iowa City 19 2130CST 2200CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)

The emergency manager reported widespread wind damage across much of Johnson county which occurred between 1030 and 1100 pm. A tree was blown over onto Interstate 80 near mile marker 231. Winds were estimated at 65 to 70 mph.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Iowa County 1 SW Williamsburg 19 2131CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A trained spotter reported 60 mph winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Washington County 1 ENE Kalona 19 2131CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A trained spotter estimated winds of 65 to 70 mph. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Linn County 2 SSW Cedar Rapids 19 2140CST 2215CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

The emergency manager reported widespread wind damage across Linn county which occurred between 1040 pm and 1115 pm. There was tree damage in Cedar Rapids and three large road signs were blown down on Interstate 380 near Wright Brothers exit. Note: The estimated wind gust of 65 knots is equivalent to 75 mph.

157 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast Des Moines County 1 E Middletown 19 2147CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)

A trained spotter measured 65 mph with half of the town without power.

Note: The measured wind gust of 52 knots is equivalent to 60 mph. Benton County 3 NW Atkins 19 2150CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported numerous trees down along with metal in fields from warehouse structures.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Benton County 3 NW Atkins 19 2150CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A trained spotter measured 65 mph winds with numerous trees down and metal in fields from warehouse structures.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Benton County 3 S Shellsburg 19 2150CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A spotter reported trees snapped off damaging a few mobile homes in a trailer park.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Linn County 3 S Cedar Rapids 19 2151CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

A trained spotter estimated winds between 70 to 80 mph. Power out for 6.5 hours. Several large trees were uprooted, 6 inch branches broken and multiple garbage carts weighting 150 lbs blown over.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Linn County 3 S Cedar Rapids 19 2152CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported several large trees uprooted. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Linn County (CID)Cedar Rapids Ar 19 2152CST 0 0 0.00K 0.00K Thunderstorm Wind (62MG)

The ASOS near Cedar Rapids measured 70 mph winds. Note: The measured wind gust of 62 knots is equivalent to 71 mph. Linn County 3 SE Covington 19 2154CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported a large tree down in a yard on Carter street near Plainview and Cedar.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Benton County 3 NW Atkins 19 2155CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported tin everywhere, a grain bin in a field, power lines down and several trees 1 foot or greater in diameter uprooted. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Benton County 2 W Watkins 19 2155CST 2215CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

158 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast

A downburst produced wind damage from the county line 3.5 miles southeast of Blairstown to 2.8 miles southeast of Shellsburg. There was a mile wide swath of near continuous damage to farm outbuildings, tree branches and some power poles. The greatest damage was from 3 miles south of Newhall, where a machine shed and garage were completely destroyed, to about 3 miles northwest of Atkins, where significant damage occurred to outbuildings.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Linn County 2 WNW Marion 19 2158CST 0 0 0.00K 0.00K Thunderstorm Wind (58MG)

A trained spotter measured 65 mph winds. Note: The measured wind gust of 58 knots is equivalent to 67 mph. Henry County 1 NW New London 19 2200CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported a 10 inch partially rotted tree branch blown down at Chestnut and McKinley. A 4 inch health branch was blown down on the road near 300 East Cleveland in New London.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Benton County 1 NNE Atkins 19 2204CST 2215CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Wind damage to farm outbuildings in a southwest to northeast path in the Atkins and Shellsburg area. Reported by a Cedar Rapids media employee residing in the area. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Des Moines County 1 SSE Lenox Park 19 2207CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

The emergency manager reported live power lines down on a vehicle at 114 South Marshall Street in Burlington.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Linn County 3 NNW Paris 19 2212CST 0 0 0.00K 0.00K Thunderstorm Wind (66MG)

A trained spotter measured 76 mph winds from an anemometer before the equipment broke. Large trees were blown down.

Note: The measured wind gust of 66 knots is equivalent to 76 mph. Delaware County 2 NE Robinson 19 2215CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

The Sheriff's Department reported a camper blown over on top of a truck on 300th Street.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Jones County 1 NE Monticello 19 2215CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Emergency manager reported two trees down in Monticello. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Delaware County 1 NW Delhi 19 2220CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

The emergency manager reported power lines down between Delaware and Delhi and a tree was down across the highway just west of Manchester. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Delaware County 2 SW Baileys Ford Park 19 2225CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

The sheriff's department reported a 40 by 50 foot shed had been lifted and dropped onto 180th Avenue.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

159 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast Delaware County 1 SW Baileys Ford Park 19 2228CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

The sheriff's department reported a roof blown off a pole barn.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Scott County 1 NE Davenport Arpt 19 2240CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A large tree limb was blown down over power lines near the Davenport Airport.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Dubuque County 2 NE Dubuque 19 2242CST 0 0 0.00K 0.00K Hail (0.88)

Pea to nickel size reported by a spotter. Dubuque County 3 W Asbury 19 2250CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A trained spotter measured 60 to 70 mph winds. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Lee County 1 WNW Keokuk 20 1810CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

The emergency manager reported tree limbs down eastern Lee county.

A very unstable airmass on May 19, 2013 led to the development of severe thunderstorms that produced large hail and damaging winds. Temperatures were in the 80s with dewpoints around 70 with a mid level speed maximum rotating around the base of a developing upper low in the Plains states. This increased the deep layer shear during the afternoon and evening hours. Some of the storms produced golf to baseball size hail and 70 to 80 mph winds. A trained spotter reported baseball size hail knocked out sky lights at the Walmart store in northeast Keokuk. Golfball to baseball size hail was reported on the north end of the city, with nickel to quarter size hail on the south end of the city. A downburst produced wind damage in Benton county from the county line 3.5 miles southeast of Blairstown to 2.8 miles southeast of Shellsburg. There was a mile wide swath of near continuous damage to farm outbuildings, tree branches and some power poles. The greatest damage was from 3 miles south of Newhall, where a machine shed and garage were completely destroyed, to about 3 miles northwest of Atkins, where significant damage occurred to outbuildings. The emergency manager in Buchanan county reported a downburst with winds more than 70 mph struck Independence, Iowa. The northwest side of town sustained the most damage with trees down, power poles snapped and signs blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

Keokuk County 4 SW Keswick 26 0530CST 0 0 0.00K 0.00K Flash Flood Trained spotter reported very heavy rains with creeks out of their banks and flash flooding occurring.

Iowa County 1 N Koszta 26 1618CST 0 0 0.00K 0.00K Flash Flood A trained spotter reported water over the roadway on Highway 212 in northwest Iowa county.

Scott County 1 NW Panorama Park 26 1715CST 0 0 0.00K 0.00K Flash Flood Broadcast media reported detours from River Drive to Grant Street is flooded in Davenport with vehicles getting stuck in the water. Iowa County 2 N Marengo 26 1717CST 0 0 0.00K 0.00K Flash Flood Flooding was reported over Highway 6 through Marengo and just to the east.

Louisa County 1 E Wapello 26 1930CST 0 0 0.00K 0.00K Flash Flood Law enforcement reported several roads closed due to flash flooding over the southern portions of Louisa county.

160 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast Iowa County 1 W Williamsburg 26 2000CST 0 0 0.00K 0.00K Flash Flood Law enforcement reported numerous county roads impacted by water.

Scott County 2 NNW Davenport 26 2048CST 0 0 0.00K 0.00K Flash Flood Broadcast media reported Duck Creek out of it's banks and flowing across Eastern Avenue in Davenport.

Louisa County 2 WNW Columbus City 26 2217CST 0 0 0.00K 0.00K Flash Flood A trained spotter reported Highway 92 between Cotter and Columbus Junction had water flowing across it in many locations. One section had large debris washed onto the highway that included railroad ties and logs.

Low pressure was located in western South Dakota with a stationary front extending into eastern Missouri on May 26-27, 2013. North of the front temperatures were only in the 50s in eastern Iowa but to the south readings were in the 80s with dewpoints in the 60s. A strengthening low level jet impinging on the frontal boundary helped to trigger numerous training thunderstorms across the area. This led to flash flooding in many areas with roads closed. In Louisa county a trained spotter reported Highway 92 between Cotter and Columbus Junction had water flowing across it in many locations. One section had large debris washed onto the highway that included railroad ties and logs.

Iowa County 2 NW Marengo 27 1300CST 31 2359CST 0 0 0.00K 0.00K Flood

Heavy rains across the region during the last week of May led to a rapid rise on the Iowa River near Marengo. The river rose to and above major flood stage of 18.5 feet during midday on the 27th and then fell below major flood stage to 18.23 feet in the early morning hours on the 28th. Later that evening the river rose back above major flood stage and stayed that way through the end of the month.

Washington County Kalona Arpt 27 2200CST 29 1500CST 0 0 0.00K 0.00K Flood

Heavy rains the last week of May led to rapid rises on the English River near Kalona. The river rose above the major flood stage of 18.0 feet in the mid evening of the 27th and and fell below major flood stage on the evening of the 29th.

Keokuk County 1 S Hayesville 28 0200CST 3 N Martinsburg 31 1000CST 0 0 0.00K 0.00K Flood

Heavy rain during the last week of May caused a rapid rise on the Skunk River to the south of Sigourney. The river rose above the major flood stage of 21 feet early in the morning of the 28th and fell below major flood stage on the mid morning of the 31st.

Clinton County 4 SW Dewitt 28 0653CST 29 0244CST 0 0 0.00K 0.00K Flood

Heavy rains the last week in May caused a rapid rise on the Wapsipinicon River 4 miles south of DeWitt. The river rose above the major flood stage of 12.5 feet in the morning hours of May 28th and fell below in the early morning hours of May 29th.

Scott County 4 WNW Gambrill 28 0653CST 29 0244CST 0 0 0.00K 0.00K Flood

Heavy rains the last week in May caused a rapid rise on the Wapsipinicon River 4 miles south of DeWitt. The river rose above the major flood stage of 12.5 feet in the morning hours of May 28th and fell below in the early morning hours of May 29th.

Heavy rains during the last week of May resulted in several tributary rivers as well as parts of the Mississippi River to reach and exceed their respective major flood stage level between May 27th and May 31st.

161 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast Des Moines County 1 SSE Lenox Park 28 1546CST 0 0 0.00K 0.00K Hail (0.75)

Jefferson County 3 E Germanville 28 1650CST 0 0 0.00K 0.00K Hail (1.00)

Des Moines County 2 NE Huron 28 1731CST 1732CST 0 0 0.00K 0.00K Hail (1.00)

Hail lasted for about a minute. Jefferson County Packwood 28 1830CST 0 0 0.00K 0.00K Hail (0.75)

A torrential downpour of rain with near-zero visibility was also observed.

Jefferson County 1 NE Fairfield 28 1832CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)

Trees and branches were reported down all across the city of Fairfield.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Jefferson County 1 E Pleasant Plain 28 1840CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

A trained spotter reported siding blown off of a house, along with a 4 inch diameter limb blown down. Several other smaller branches blown down, and a barn damaged by a fallen limb.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Jefferson County 1 NE Fairfield 28 1842CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A trained spotter esimated wind speeds of 60 to 70 mph. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Keokuk County 1 W Sigourney 28 1956CST 0 0 0.00K 0.00K Flash Flood Law enforcement reported 20 roads closed across Keokuk county due to flash flooding.

A nearly stalled frontal boundary across the area interacted with a rather strong upper air disturbance on May 28, 2013, which triggered severe thunderstorms in the moderate to high instability. Sufficient deep layer shear was in place along with a moist airmass. This led to reports of damaging wind, large hail and flash flooding.

Washington County 3 N Brighton 29 0600CST 31 0800CST 0 0 0.00K 0.00K Flood

Heavy rain during the last week of May caused a rapid rise on the Skunk River to the north of Brighton. The river rose above the major flood stage of 18 feet early in the morning of the 29th and remained above major flood stage through the 30th before falling below flood stage on the morning of the 31st.

Heavy rains during the last week of May resulted in several tributary rivers as well as parts of the Mississippi River to reach and exceed their respective major flood stage level between May 27th and May 31st.

Buchanan County 1 NNE Hazleton 29 1600CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A COOP observer reported 60 mph winds near Hazelton. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

162 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast Buchanan County 1 SE Stanley 29 1600CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

A trained spotter reported a 30 foot tall cedar tree about 3-4 feet in diameter snapped off 5 feet above the ground. The tree was blocking county road W33. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Buchanan County 1 NNE Hazleton 29 1600CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter measured 2 six inch diameter limbs down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Benton County 1 W Norway 29 1607CST 0 0 0.00K 0.00K Hail (0.75)

Iowa County 1 NNE West Amana 29 1610CST 0 0 0.00K 0.00K Hail (1.00)

Buchanan County 2 NE Hazleton 29 1612CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported a metal barn door severely damaged and torn off 2 miles northeast of Hazelton.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Buchanan County Aurora 29 1612CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported a machine shed roof and door damaged near Aurora.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Benton County 1 N Shellsburg 29 1634CST 0 0 0.00K 0.00K Hail (0.88)

Benton County 2 NW Shellsburg 29 1636CST 0 0 0.00K 0.00K Hail (0.88)

Delaware County 1 S Edgewood 29 1640CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

The emergency manager reported 10 inch tree limbs down in Edgewood along with power out in town.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Delaware County 1 S Colesburg 29 1656CST 0 0 0.00K 0.00K Hail (0.75)

Delaware County 1 N Colesburg 29 1657CST 0 0 0.00K 0.00K Hail (1.00)

Benton County 1 S Vinton 29 1709CST 0 0 0.00K 0.00K Flash Flood The emergency manager reported street flooding in low lying locations in town. Creeks were filling up and going out of their banks. Benton County 5 SW Urbana 29 1815CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

The emergency manager reported 2 trees down in Benton City Park in Urbana.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

163 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast Delaware County 3 N Coffins Grove Park 29 1824CST 0 0 0.00K 0.00K Flash Flood The emergency manager reported several roads closed with running water between Edgewood and Greeley to Manchester. Also street flooding and water in low lying areas was reported. Buchanan County 2 E Winthrop 29 1849CST 0 0 0.00K 0.00K Flash Flood A trained spotter reported streets flooded and water onto lawns, along with creeks out of their banks. There was also considerable flooding of fields. Buchanan County 6 NE Monti 29 1905CST 0 0 0.00K 0.00K Flash Flood The emergency manager reported water was over the 4 lane U.S. Highway 20 at the Delaware/Buchanan county line. The highway was closed due to the high water. Delaware County 1 N Colesburg 29 1929CST 0 0 0.00K 0.00K Hail (0.88)

Linn County 3 ENE Walker 29 2000CST 0 0 0.00K 0.00K Flash Flood The emergency manager reported the town of Walker sustained major damage from severe flash flooding, mostly due to Blue Creek in town. Between 50 and 100 homes were damaged, a couple of businesses were destroyed and bridges were under water. About 5 inches of rain fell in about 2 hours.

Delaware County 3 S Edgewood 29 2006CST 0 0 0.00K 0.00K Flash Flood A trained spotter reported widespread moderate to severe flooding with many roads closed.

Buchanan County 2 W Quasqueton 29 2035CST 0 0 0.00K 0.00K Flash Flood Water was reported over River Drive in town, along with fields and ditches flooded between Independence and Quasqueton.

Buchanan County 2 W Independence 29 2124CST 0 0 0.00K 0.00K Flash Flood A trained spotter reported several streets in downtown Independence flooded and closed.

A warm front extended from a surface low pressure in northwest Kansas to just north of Omaha and then into central Illinois on May 29, 2013. Plentiful moisture was noted south of this front with dewpoints in the 60s. A strengthening low level jet to 50 knots impinging on the front developed numerous thunderstorms across the area. These storms produced damaging wind, large hail and flash flooding. The emergency manager in Linn county reported the town of Walker sustained major damage from severe flash flooding, mostly due to Blue Creek in town. Between 50 and 100 homes were damaged, a couple of businesses were destroyed and bridges were under water. About 5 inches of rain fell in about 2 hours.

Des Moines County 3 NNW Augusta 30 0200CST 31 2359CST 0 0 0.00K 0.00K Flood

Heavy rains during the last week of May led to rapid rises on the Skunk River at Augusta, Ia. The river rose above major flood stage of 20 feet in the early morning hours of the 30th and and very gradually rose through the end of the month.

Lee County 3 NW South Augusta 30 0200CST 2 NNE Denmark 31 2359CST 0 0 0.00K 0.00K Flood

Heavy rains during the last week of May led to rapid rises on the Skunk River at Augusta, Ia. The river rose above major flood stage of 20 feet in the early morning hours of the 30th and and very gradually rose through the end of the month.

Linn County 1 W Hiawatha 30 1200CST 1 W Covington 31 2359CST 0 0 0.00K 0.00K Flood

Heavy rains the last week in May caused a rapid rise on the Cedar River in Cedar Rapids. The river rose above the major flood stage of 16 feet at midday and remained above the major flood stage through the end of the month.

164 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast

Heavy rains during the last week of May resulted in several tributary rivers as well as parts of the Mississippi River to reach and exceed their respective major flood stage level between May 27th and May 31st.

Van Buren County 1 SSE Bonaparte Arpt 30 1419CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported 4 inch diameter trees down in Farmington.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Van Buren County 1 W Keosauqua 30 1419CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)

A trained spotter reported several trees down in town with a uprooted 36 inch diameter tree blocking a road. Numerous power lines were also down. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Jefferson County 1 W Fairfield Muni Arpt 30 1435CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG) Note: The measured wind gust of 53 knots is equivalent to 61 mph.

Lee County 1 WSW Donnellson 30 1438CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)

A 2 foot diameter tree was down in town with several small tree limbs blown down as well.

Note: The estimated wind gust of 53 knots is equivalent to 61 mph. Scott County 1 NW Panorama Park 30 1439CST 0 0 0.00K 0.00K Hail (0.75)

Henry County 1 S Mt Pleasant 30 1440CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A large tree limb about 10 inches in diameter along with several tree limbs down was reported by a spotter.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Jefferson County 1 E Pleasant Plain 30 1445CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported a carport lifted and tree branches blown down.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lee County 1 W Ft Madison 30 1445CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported power lines down in Fort Madison, along with some power poles on fire.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Henry County 1 NW New London 30 1452CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

A barn was severely damaged. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Lee County Ft Madison Muni Arpt 30 1455CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

165 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast Des Moines County 1 SSE Lenox Park 30 1500CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

The emergency manager reported extreme straight-line winds downed numerous trees and bent over street signs. Also, a steel frame building near Spirit Hollow blown down. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Des Moines County (BRL)Burlington Muni 30 1500CST 0 0 0.00K 0.00K Thunderstorm Wind (70MG) Note: The measured wind gust of 70 knots is equivalent to 81 mph.

Muscatine County 1 SSW Conesville 30 1510CST 1512CST 2.43 100 0 0 25.00K 0.00K Tornado (EF1)

Large trees were snapped and uprooted along the path. The roof of a mobile home was partially blown off. The wind speed with this tornado were estimated to be around 95 mph. Louisa County 1 E Grandview 30 1515CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

A trained spotter reported numerous branches down in Grandview.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Johnson County 1 S Iowa City Muni Arpt 30 1520CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A trained spotter reported damage at Lake Ridge Mobile Home Park with shingles blown off roofs. Winds were estimated at 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Muscatine County 4 NNW Muscatine 30 1535CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

A trained spotter estimated winds of 65 to 75 mph. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Muscatine County 1 E Sweetland Center 30 1536CST 0 0 0.00K 0.00K Hail (1.00)

Scott County 1 SSE Buffalo 30 1545CST 1547CST 1.57 150 0 0 100.00K 0.00K Tornado (EF1)

An EF1 tornado touched down in Andalusia, IL around 445 pm CDT and traveled due north. This weak tornado crossed the Mississippi River and moved through eastern sections of Buffalo, IA. Wind speeds were estimated to be 95 mph. Some large trees were snapped and uprooted along the path. Some of the fallen trees fell onto houses.

Scott County 1 W Davenport 30 1552CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A trained spotter at Rockingham Road and Pine Street in Davenport as a shelf cloud passed over the area.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Scott County 1 W Davenport 30 1555CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A trained spotter reported a 6 inch diameter tree limb was ripped from a healthy tree near the intersection of Warren Street and 8th Street in Davenport. Wind gusts were estimated to be at least 65 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

166 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast Scott County 1 NW Panorama Park 30 1558CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A NWS employee reported a 6 inch diameter tree limb down near Middle Road and the Chateau Knoll Apartments in Bettendorf. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Scott County 2 NE Davenport Arpt 30 1558CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)

A large 8 inch diameter tree was uprooted. Note: The estimated wind gust of 53 knots is equivalent to 61 mph. Scott County 1 NNE Davenport Arpt 30 1600CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A 12 inch diameter tree was down with several 4 inch branches down in Davenport. Wind was estimated at 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Scott County 2 NNW Davenport 30 1600CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Numerous trees were down in Vander Veer Park in Davenport. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Clinton County 1 W Charlotte 30 1615CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A trained spotter reported no power. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Jones County 1 NE Monticello 30 1615CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Clinton County 1 SE Charlotte 30 1616CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

A trained spotter measured 65 mph winds. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Clinton County 2 SW Clinton Muni Arpt 30 1620CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported several tree limbs down along with a 6 inch diameter tree blocking a road.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Jackson County Springbrook 30 1630CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)

A trained spotter reported several trees down and siding blown off a house. Winds were estimated at 70 mph.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Clinton County 4 ENE Elvira 30 1632CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Law enforcement reported a 10x15 foot building blown into the roadway in the northwest part of Clinton.

A cold front pushing into a very moist and unstable airmass triggered numerous severe thunderstorms on May 30, 2013. Deep layer shear was moderate to strong and freezing levels were in the 11-12k foot level, which was ideal for large hail. The storms produced damaging winds, large hail and several weak tornadoes. An EF1 tornado touched down in Andalusia, IL around 445 pm CDT and traveled due north. This weak tornado crossed the Mississippi River and moved through eastern sections of Buffalo, IA. Wind speeds were estimated to be 95 mph. Some large trees were snapped and uprooted along the path. Some of the fallen trees fell onto houses. In extreme northeast Missouri, wind gusts estimated to be 70 mph produced heavy tree damage throughout Scotland County. Several outbuildings were damaged and about 30 power poles were snapped. The tree damage was mainly located between Bible Grove and Memphis. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

167 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast Lee County 2 NNW Keokuk Arpt 30 2000CST 2 WSW Keokuk 31 2359CST 0 0 0.00K 0.00K Flood

Heavy rains during the last week of May resulted in the Mississippi River at Keokuk, IA going above the major flood stage level of 19 feet during the evening of May 29th. It briefly fell about 1/4 of an inch below the major flood stage level during the early evening hours of May 30. It then rose above 19 feet and remained above it through the end of the month.

Des Moines County 1 N Huron 31 0130CST 1 SSW Spring Grove 2359CST 0 0 0.00K 0.00K Flood

Heavy rains during the last week of May resulted in the Mississippi River at Gladstone and Burlington going above their respective major flood stage levels. Gladstone rose above its 14 foot major flood stage level during the early morning of May 31st. It remained above 14 feet through the end of the month. Burlington rose above its 18 foot major flood stage level during the afternoon of May 29th. It remained above 18 feet through the end of the month.

Jones County 1 WSW Wapsipinicon Sp 31 0215CST 2359CST 0 0 0.00K 0.00K Flood

Heavy rains during the last week of May resulted in a rapid rise in the Wapsipinicon River at Shaw Road southeast of Anamosa. The river rose above its 19 foot major flood stage level during the early morning hours of of May 31st. The river crested at 21.60 feet in the early evening hours of the 31st and began a slow fall through the end of the month.

Heavy rains during the last week of May resulted in several tributary rivers as well as parts of the Mississippi River to reach and exceed their respective major flood stage level between May 27th and May 31st.

IOWA, Northeast

IAZ008-018 Floyd - Mitchell 02 0000CST 1500CST 0 0 0.00K 0.00K Heavy Snow

A narrow but intense band of snow set up across portions of northeast Iowa during the evening hours of May 1st and continued into the 2nd. While most of northeast Iowa ended up receiving some snow from this system, a band of 10 inches or more occurred across portions of Floyd and Mitchell Counties. New Iowa state snowfall records for the month of May were established with a two day total of 13.0 inches on May 2nd and 3rd in Osage (Mitchell County). This also established a new record for the amount of snow to fall during the entire month of May. Other notable snowfall totals were 10 inches in Charles City (Floyd County). The heavy wet snow caused power outages with 5000 customers across northern Iowa losing power.

Clayton County 1 NNE Mc Gregor 09 1345CST 13 0800CST 0 0 0.00K 0.00K Flood

Runoff from snow melt and heavy rain that moved down the Mississippi River, pushed the river out of it banks at McGregor. The river crested less than a half foot above the flood stage at 16.29 feet.

Fayette County 1 S Waucoma 09 1400CST 1600CST 0 0 10.00K 0.00K Flood

The driver of a vehicle was able to escape before it sank after attempting to drive through flood waters from a local creek in Waucoma. Flood waters from a creek in Waucoma (Fayette County) covered the intersection of County Road V68 and Scenic Road. When a driver attempted to drive through the waters, the current in the flow swept the vehicle off the road. The driver was able to escape without injury before the vehicle sank.

168 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Northeast Floyd County 1 WNW Charles City Arpt 14 1545CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

The automated weather observing equipment at the Charles City airport measured a wind gust of 58 mph.

Isolated thunderstorms developed along a cold front during the afternoon of May 14th. One of these storms become strong enough to produce high winds with the automated weather observing equipment at the Charles City Airport (Floyd County) measuring a wind gust of 58 mph. Note: The measured wind gust of 50 knots is equivalent to 58 mph. Floyd County 2 N Nora Spgs 19 1358CST 0 0 60.00K 0.00K Thunderstorm Wind (60EG)

A barn was blown down along with numerous large trees north of Nora Springs. One of the trees fell on a house.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Mitchell County 1 E St Ansgar 19 1400CST 1955CST 0 0 0.00K 0.00K Heavy Rain

In St. Ansgar, 4.43 inches of rain was reported. Mitchell County 3 NNW Meroa 19 1407CST 0 0 20.00K 0.00K Thunderstorm Wind (55EG)

A metal building was blown over and trees uprooted on a farm southwest of Mitchell.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Mitchell County 3 SW Mitchell 19 1409CST 0 0 20.00K 0.00K Thunderstorm Wind (60EG)

Three sheds were destroyed with some of the debris wrapped around power lines and a 2x6 was driven into another building on farms southwest of Mitchell. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Floyd County 1 E Charles City 19 1414CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail was reported in Charles City. Mitchell County 2 S Mitchell 19 1419CST 0 0 40.00K 0.00K Thunderstorm Wind (55EG)

A grain bin was blown over on a farm south of Mitchell. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Mitchell County 1 E Osage 19 1420CST 2100CST 0 0 0.00K 0.00K Heavy Rain

The automated mesonet observing equipment in Osage measured 3.84 inches of rain.

Mitchell County 3 W Osage 19 1420CST 0 0 50.00K 0.00K Thunderstorm Wind (55EG)

A barn was blown over west of Osage killing 5 head of cattle that were inside the barn at the time.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Mitchell County 1 WNW Osage 19 1426CST 0 0 0.00K 0.00K Hail (1.00)

Lots of quarter sized hail fell and covered the ground along State Highway 9 just west of Osage.

169 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Northeast Floyd County 1 W Nora Spgs 19 1653CST 20 0300CST 0 0 0.00K 0.00K Flash Flood

Numerous roads in Nora Springs were under water. Dancer and Echo Avenues in the northwest corner of the county were closed as flood waters from Flood Creek covered the roads. Mitchell County 3 NNW Otranto 19 1708CST 3 ENE Bailey 20 0600CST 0 0 4.50M 20.00M Flash Flood

Heavy rain produced wide spread flash flooding across much of Mitchell County. Numerous roads around Stacyville were under water by early evening and sand bagging occurred along the Little Cedar River. U.S. Highway 218 was closed by flooding between Osage and St. Ansgar and State Highway 9 was closed east and west of Osage. West of Osage, two culverts were washed away, causing a section of Highway 9 to collapse. A total of 22 roads were closed, 6 to 8 bridges washed out and approximately 90 percent of the gravel roads across the entire county were covered with water. Damage to the roads was estimated to be around $4.5 million. In addition to all the road damage, a railroad bridge north of St. Ansgar was also washed out. The Stacyville fire department reported between 6 and 7 inches of rain had fallen during the mid and late afternoon hours. The heavy rains also took out about 15 percent of the county's corn crop.

Chickasaw County Fredricksburg 19 2006CST 0 0 50.00K 0.00K Thunderstorm Wind (65EG)

A grain elevator was damaged in Fredericksburg. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Chickasaw County 1 SE New Hampton 19 2006CST 0 0 65.00K 0.00K Thunderstorm Wind (70EG)

Numerous garages and buildings were damaged across New Hampton. Power lines and approximately 100 trees were also blown down. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Winneshiek County 1 E Calmar 19 2030CST 0 0 15.00K 0.00K Thunderstorm Wind (70EG)

Some houses in Calmar had siding and shingles ripped off and numerous trees were snapped off.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Allamakee County 1 E Postville 19 2055CST 0 0 2.00K 0.00K Thunderstorm Wind (65EG)

Trees were blown down in Postville. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Allamakee County Waukon 19 2104CST 0 0 2.00K 0.00K Thunderstorm Wind (70EG)

Trees were blown down in Waukon. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Allamakee County 3 W Elon 19 2109CST 0 0 1.00K 0.00K Thunderstorm Wind (70EG)

Trees were blown down east of Waukon. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Floyd County 1 E Charles City 20 0400CST 2 SSW Waller 22 0730CST 0 0 0.00K 0.00K Flood

Runoff from heavy rain pushed the Cedar River out of its banks in Charles City. The river crested over seven and a half feet above the flood stage at 19.52 feet.

170 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Northeast

Several rounds of thunderstorms rolled across northeast Iowa during the afternoon and evening of May 19th. These storms produced very heavy rains across Floyd and Mitchell Counties where numerous roads were washed out or covered with flood waters. Damage to roads in Mitchell County was estimated to be around $4.5 million where 22 roads were closed with 6 to 8 bridges washed out. The heavy rain also damaged the corn crop in Mitchell County where it is estimated up to 15 percent of the crop will not grow back. The storms also produced damaging winds that destroyed buildings and blew down trees and power lines. Barns were blown down in Floyd and Mitchell Counties while a grain elevator was damaged near Fredericksburg (Chickasaw County). Flood waters on the Little Cedar River east of Charles City (Floyd County) damaged a railroad bridge causing an 80 car train to derail into the river. The two employees on the train were rescued without sustaining any injuries. The Iowa Governor requested a Presidential Disaster Declaration be made for Mitchell, Floyd, Chickasaw, Fayette and Clayton Counties. Winneshiek County 3 SSE Nordness 20 1930CST 0 0 0.00K 0.00K Hail (1.00)

One inch was reported north of Ossian. Thunderstorms developed across northeast Iowa during the evening of May 20th ahead of a cold front that was approaching from the west. An isolated severe thunderstorm produced large hail near Ossian (Winneshiek County).

Floyd County 2 ENE Charles City Arpt 20 2200CST 21 0100CST 0 0 100.00K 0.00K Flood

Heavy rains caused the Little Cedar River to go out of its banks east of Charles City. The flood waters damaged a railroad bridge causing an 80 car train to derail into the river. The two employees on the train were rescued without sustaining any injuries. A small amount of diesel fuel from one of the locomotives and ethanol from a tank car leaked into the river.

Allamakee County 3 S Chester 21 2050CST 22 0730CST 0 0 0.00K 0.00K Flood

Runoff from heavy rain pushed the Upper Iowa River out of its banks near Dorchester. The river crested almost four feet above the flood stage at 15.86 feet. Several rounds of thunderstorms rolled across northeast Iowa during the afternoon and evening of May 19th. These storms produced very heavy rains across Floyd and Mitchell Counties where numerous roads were washed out or covered with flood waters. Damage to roads in Mitchell County was estimated to be around $4.5 million where 22 roads were closed with 6 to 8 bridges washed out. The heavy rain also damaged the corn crop in Mitchell County where it is estimated up to 15 percent of the crop will not grow back. The storms also produced damaging winds that destroyed buildings and blew down trees and power lines. Barns were blown down in Floyd and Mitchell Counties while a grain elevator was damaged near Fredericksburg (Chickasaw County). Flood waters on the Little Cedar River east of Charles City (Floyd County) damaged a railroad bridge causing an 80 car train to derail into the river. The two employees on the train were rescued without sustaining any injuries. The Iowa Governor requested a Presidential Disaster Declaration be made for Mitchell, Floyd, Chickasaw, Fayette and Clayton Counties. Winneshiek County 1 E Calmar 22 1408CST 0 0 0.00K 0.00K Funnel Cloud

Funnel clouds were sighted in Calmar. Winneshiek County 1 NE Decorah 22 1448CST 1500CST 0 0 0.00K 0.00K Funnel Cloud

Funnel clouds were visible in Decorah. Numerous funnel clouds were sighted across northeast Iowa during the afternoon of May 22nd. None of these funnels touched down and occurred with showers and thunderstorms that developed along a slow moving trough of low pressure.

Chickasaw County 1 W Nashua 29 1312CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A 60 mph wind gust was reported in Nashua. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

171 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Northeast Chickasaw County 3 NNE Ionia 29 1327CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)

The automated mesonet observing equipment near Ionia measured a wind gust of 62 mph.

Note: The measured wind gust of 54 knots is equivalent to 62 mph. Chickasaw County 1 SE New Hampton 29 1340CST 0 0 0.00K 0.00K Thunderstorm Wind (55MG)

A wind gust of 63 mph occurred in New Hampton. Note: The measured wind gust of 55 knots is equivalent to 63 mph. Chickasaw County 5 E Saude 29 1525CST 7 ESE Fredricksburg 30 0000CST 0 0 20.00K 0.00K Flash Flood

Heavy rain produced street flooding and caused water to go into several basements in Lawler. Widespread flooding also occurred over the eastern sections of the county and numerous streets were flooded in New Hampton.

Fayette County 1 N Fairbank 29 1540CST 2023CST 0 0 0.00K 0.00K Heavy Rain

In Fairbank, 3.2 inches of rain fell. Howard County 1 E Protivin 29 1549CST 2200CST 0 0 0.00K 0.00K Flash Flood

Sandbagging occurred in Protivin after heavy rain pushed Bohemian Creek out of its banks.

Fayette County 2 E Oelwein 29 1605CST 0 0 25.00K 0.00K Thunderstorm Wind (60EG)

A farm shed was blown down, a grain bin was twisted and torn, windows were broken and machines were damaged on a farm east of Oelwein. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Clayton County 2 SE Edgewood 29 1615CST 2041CST 0 0 0.00K 0.00K Heavy Rain

In Edgewood, 4.5 inches of rain fell. Winneshiek County 2 SSW Ft Atkinson 29 1625CST 1 NE Decorah Tatro Arpt 2330CST 0 0 20.00K 0.00K Flash Flood

Heavy rain caused Goddard Creek to go out of its banks with water covering part of State Highway 24 just outside of Fort Atkinson. In and around Calmar, water was over several county roads and State Highway 24. Street flooding in Calmar also occurred along with water getting into the basements of some houses. Widespread street flooding from heavy rain occurred in Decorah. In about an hour and 45 minutes, 3.5 inches of rain fell in Fort Atkinson, the COOP observer in Calmar received 3.43 inches and the public reported 3.5 inches of rain in Decorah.

Clayton County 1 ESE Garnavillo 29 1646CST 1 ENE Clayton 1651CST 4.82 10 0 0 20.00K 0.00K Tornado (EF0)

A pole barn was damaged and numerous trees were knocked down from east of Garnavillo to the Wisconsin state line in the Mississippi River east of Clayton.

172 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Northeast Clayton County 2 ESE Edgewood 29 1650CST 0 0 0.00K 0.00K Hail (0.88)

Clayton County 4 WSW Strawberry Pt 29 1746CST 1 S Highland 30 0115CST 0 0 0.00K 0.00K Flash Flood

Heavy rain overwhelmed small streams east of Edgewood causing water to go over State Highway 3. Numerous other streams over the southern half of the county also went out of their banks causing water to flow over roads. The COOP observer in Edgewood reported 4.1 inches of rain.

Fayette County 3 SSE Arlington 29 1815CST 2200CST 0 0 75.00K 0.00K Flash Flood

Heavy rains caused several small streams that feed the Maquoketa River to go out of their banks south of Arlington. At least three roads were closed due to washouts or water over the road.

Fayette County 2 SW Maynard 29 1953CST 3 ESE Westgate 30 0000CST 0 0 0.00K 0.00K Flood

Numerous fields were underwater north of Oelwein from heavy rain.

Clayton County 1 N Garber 29 2030CST 31 2315CST 0 0 0.00K 0.00K Flood

Runoff from heavy rain pushed the Turkey River out of its banks in Garber. The river crested almost five and a half feet above the flood stage at 22.47 feet. Floyd County 1 N Charles City 29 2326CST Waller 30 0400CST 0 0 0.00K 0.00K Flash Flood

Numerous streets were under water in Charles City from excessive rain. The storm sewers were not able to keep up with the rain as it fell. Allamakee County 3 S Chester 30 0200CST 1140CST 0 0 0.00K 0.00K Flood

Runoff from heavy rain pushed the Upper Iowa River out of its banks near Dorchester. The river crested almost a foot above the flood stage at 14.99 feet. Clayton County Elkader 30 0230CST 31 1915CST 0 0 0.00K 0.00K Flood

Runoff from heavy rain pushed the Turkery River out of its banks in Elkader. The river crested almost four feet above the flood stage at 15.86 feet. A small tornado developed east of Garnavillo (Clayton County) and traveled east/northeast to the Mississippi River before crossing over into Wisconsin. This tornado was part of a larger severe weather outbreak that occurred across much of northeast Iowa during the afternoon of May 29th. These storms developed in a warm and moist airmass behind a warm front that was moving north across the Upper Midwest. In addition to the tornado, a farm east of Oelwein (Fayette County) was hit hard by straight line winds and flash flooding occurred in Protivin (Howard County).

Clayton County 3 N Osterdock 30 1641CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

An estimated wind gust of 60 mph occurred southeast of Garnavillo.

For the second straight day, thunderstorms developed during the afternoon across northeast Iowa. Some of these storms produced severe wind gusts with a 60 mph gust occurring southeast of Garnavillo (Clayton County). Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

173 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Northeast Floyd County 2 WSW Floyd Hanry Arpt 31 1709CST 1710CST 0.18 10 0 0 0.00K 0.00K Tornado (EF0)

A small tornado briefly touched down north of Floyd. Howard County 5 WNW Elma 31 1732CST 0 0 0.00K 0.00K Funnel Cloud

Funnel clouds were sighted along the Mitchell County line between Riceville and Elma.

Mitchell County 1 WNW Carpenter 31 2211CST 2359CST 0 0 0.00K 0.00K Flash Flood

Heavy rains pushed Deer Creek out of its banks causing water to go over roads in the vicinity of Carpenter.

Mitchell County 1 E St Ansgar 31 2211CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell in St. Ansgar. Multiple round of thunderstorms moved across northeast Iowa during the afternoon and evening of May 31st. These storms developed in a complex surface pattern across the Upper Midwest as a pre-frontal surface trough, dry line and cold front all passed through the area. A small tornado touched down north of Floyd (Floyd County) and quarter sized hail fell in St. Ansgar (Mitchell County), otherwise, the storms passed through without producing much severe weather.

IOWA, Northwest

IAZ001>003-012- Buena Vista - Clay - Dickinson - Lyon - Osceola - Sioux 014-022 01 0100CST 02 0300CST 0 0 0.00K 0.00K Winter Weather

Wet snow, mixed with rain at times, accumulated 3 to 6 inches in several counties in northwest Iowa on May 1st into the early morning hours of May 2nd. O'brien County 4 E Sheldon Muni Arpt 26 0335CST 5 NW Hartley 0730CST 0 0 0.00K 0.00K Flash Flood

Heavy rainfall of up to 5 inches in a short time caused significant flooding of streets, and flooding of basements or lower levels of a few homes. Sioux County 2 SSE Granville 26 0445CST 0730CST 0 0 0.00K 0.00K Flash Flood

Heavy rainfall of about 4 inches in a short time caused significant street flooding, and flooding of basements or lower levels of a few houses. Cherokee County 2 NW Aurelia 26 0530CST 0830CST 0 0 0.00K 0.00K Flash Flood

Heavy rain caused significant flooding of several roads. Thunderstorms produced heavy rain which caused flash flooding in Sioux, O'Brien, and Cherokee Counties in northwest Iowa on the morning of May 26th. Buena Vista County Linn Grove 26 0600CST 30 1800CST 0 0 0.00K 0.00K Flood

Heavy rain caused minor to moderate flooding of the Little Sioux River. Farmland and a few roads were affected. The river crested at 1.1 feet above flood stage at Linn Grove on May 30th.

174 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Northwest Cherokee County 10 ENE Larrabee 26 0600CST 1 E Quimby 30 1800CST 0 0 50.00K 0.00K Flood

Heavy rain caused major to record flooding of the Little Sioux River. Farmland, parkland, and the basements or lower levels of numerous homes and several businesses were flooded. Several main roads and numerous secondary roads were flooded by the river. Main roads flooded included United States Highway 59 and Iowa Highway 3. Much of the area affected by the river flooding had also been affected by flash flooding more directly associated with the heavy rains. The river crested at a record 10.9 feet above flood stage at Cherokee on May 27th.

Clay County Everly 26 0600CST 1 N Spencer 30 1800CST 0 0 50.00K 0.00K Flood

Heavy rain caused minor to moderate flooding of the Ocheyedan River near Spencer. Lowlands including a few roads were affected. The river crested at 2.0 feet above flood stage near Spencer on May 28th.

Clay County 10 W Fostoria 26 0600CST 30 1800CST 0 0 0.00K 0.00K Flood

Heavy rain caused minor to moderate flooding of the Little Sioux River, with the greatest flooding effect in the southern part of the county. Farmland and a few roads were affected. The river crested at 2.10 feet above flood stage at Spencer on May 28th.

Woodbury County 7 NNE Correctionville 26 0600CST 30 1800CST 0 0 50.00K 0.00K Flood

Heavy rain caused moderate to major flooding of the Little Sioux River. Farmland, parkland, and the basements or lower levels of some homes and several businesses were flooded. Numerous roads were flooded by the river, and the flooding caused an interruption of the water supply in Correctionville. The river crested at 6.3 feet above flood stage at Correctionville on May 28th. Heavy rainfall caused flooding of the Little Sioux and Ocheyedan Rivers in northwest Iowa from May 26th to May 30th. The flooding was major to record along parts of the Little Sioux River with the most significant impact in the Cherokee area.

Lyon County 3 NW Granite 26 0600CST 0 0 0.00K 0.00K Flood 29 Heavy rain caused minor flooding along the Big Sioux River, with lowlands including some farmland affected.

Plymouth County 6 N Akron 26 0600CST 30 1800CST 0 0 0.00K 0.00K Flood

Minor to briefly major flooding of the Big Sioux River affected a significant amount of farmland, with other lowlands and several roads also being flooded. The river crested at 4.47 feet above flood stage at Akron on May 28th.

Sioux County 6 NW Rock Vly 26 0600CST 29 1800CST 0 0 0.00K 0.00K Flood

Heavy rain caused minor to moderate flooding along the Big Sioux River, with farmland and other lowlands affected. The river crested at 4.40 feet above flood stage at Hawarden on May 27th.

Heavy rain caused the big Sioux River to flood along most of the Big Sioux River in northwest Iowa in late May. The flooding briefly reached major status in the Akron area.

Plymouth County 5 NE Seney 26 0600CST 29 1800CST 0 0 10.00K 0.00K Flood

175 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Northwest

Heavy rain caused major flooding on the Floyd River. Significant farmland was flooded and some crops were destroyed or deemed to need replanting. Other lowlands along the river were flooded, and several roads were flooded. The basements or lower levels of several homes and business were flooded. The river crested at 5.2 feet above flood stage near Merrill on May 28th.

Sioux County 5 N Hospers 26 0600CST 29 1800CST 0 0 50.00K 0.00K Flood

Heavy rain caused record flooding on the Floyd River. Significant farmland was flooded and crops were destroyed or deemed to need replanting. Other lowlands along the river were flooded, and several roads were flooded. The basements or lower levels of numerous homes and business were flooded, especially in Alton. The river crested at a record 7.19 feet above flood stage at Alton on May 27th. Heavy rain caused major to record flooding of the Floyd River from Alton to James in late May. Farmland, other lowlands, roads, and basements and lower levels of homes and businesses were flooded.

Buena Vista County 5 SE Newell 26 2314CST 3 S Hanover 27 0330CST 0 0 0.50M 0.00K Flash Flood

Widespread heavy rainfall of up to 8 inches caused flash flooding which was also widespread, affecting the western and southern parts of the county. There was significant flooding of numerous streets and homes, with an estimated 1,500 homes and businesses in the city of Storm Lake affected by basement or lower level flooding. The Storm Lake City Hall was included, with two feet of water in its basement. Rural areas in the western part of the county were also impacted, with numerous roads, fields, and homes flooded.

Cherokee County 5 SSE Aurelia 27 0030CST 3 WSW Fielding 0330CST 0 0 0.50M 0.00K Flash Flood

Widespread heavy rainfall of up to 9 inches caused flash flooding which was also widespread, affecting especially the eastern half of the county. There was significant flooding of numerous streets and homes, with many homes and businesses in the city of Cherokee affected by basement or lower level flooding. Some basements were nearly full of water. In rural areas, numerous roads, fields, and homes were flooded.

Sioux County 3 ESE Mc Nally 27 0030CST 2 NE Lebanon 0330CST 0 0 50.00K 0.00K Flash Flood

Heavy rainfall of several inches caused widespread flooding of streets and roads, including Iowa Highway 60 between Alton and Hospers. Basements and lower levels of some homes and businesses were flooded.

Thunderstorms produced heavy rain which caused flash flooding in several parts of northwest Iowa on the morning of May 27th, starting just before midnight on May 26th.

Woodbury County 3 N Hornick 28 0600CST 1800CST 0 0 0.00K 0.00K Flood

Heavy rain caused minor flooding of West Fork Ditch, which crested at 1.71 feet above flood stage near Hornick on May 28th. Levees prevented flooding in Hornick. Heavy rain caused minor farmland and other lowland flooding of West Fork Ditch near Hornick on May 28th, 2013.

Ida County 3 ESE Battle Creek 29 1950CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds caused tree damage. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Plymouth County 1 NE Le Mars 29 2043CST 2200CST 0 0 0.00K 0.00K Flash Flood

Heavy rain caused flash flooding of roads and low areas. A retirement center was surrounded by water.

176 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Northwest

Thunderstorms produced a damaging wind gust in Ida County, and flash flooding in Plymouth County in northwest Iowa on the evening of May 29th. Woodbury County Lawton 30 2042CST 0 0 0.00K 0.00K Hail (0.88)

Hail was accompanied by very heavy rain. Osceola County 3 N Melvin 30 2138CST 0 0 0.00K 0.00K Hail (0.88)

Thunderstorms produced nickel size hail at two locations in northwest Iowa on the evening of May 30th.

IOWA, Southwest

IAZ043-055-069 Harrison - Monona - Pottawattamie - Shelby 01 1700CST 02 0300CST 0 0 0.00K 0.00K Winter Weather

A unseasonably cold upper level system brought snow, or sleet that changed to snow to much of western Iowa on May 1st into the early morning hours of May 2nd. Snow and sleet intensities were enhanced by scattered thunderstorms that moved across the area. Snowfall totals of 1 to 3 inches fell over most of the region with a swath of 3 to 5 inches reported from Pottawattamie county north through Harlan, Little Sioux and Castana with even an isolated report of around 6 inches a little east of Missouri Valley. The snow and sleet created slushy and rutted roads and winds gusting over 20 mph combined with poor visibilities in moderate snow making for a period of difficult driving conditions which caused some vehicles to slide into ditches, especially along I29 north of Council Bluffs.

Fremont County 1 S Payne 18 2342CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

A department of roads sensor along I29 measured a thunderstorm wind gust of 61 mph.

Moderately unstable conditions developed over eastern Nebraska during the afternoon and evening of May 18th as temperatures warmed into the 80s and dew point temperatures reached the mid to upper 60s. As an upper level trough approached from the Rockies, thunderstorms developed in western Nebraska and western Kansas. These storms moved east across eastern Nebraska and western Iowa and produced isolated areas of wind damage. Note: The measured wind gust of 53 knots is equivalent to 61 mph. Mills County 3 SW Pacific City 19 1433CST 0 0 Thunderstorm Wind (52EG)

A spotter estimated thunderstorm winds reached around 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Harrison County Dunlap 19 1530CST 0 0 0.00K 0.00K Hail (1.00)

Although most of the hail was pea to nickel-size, a few stones reached quarter-size.

Montgomery County 1 E Villisca 19 1606CST 0 0 0.00K 0.00K Hail (1.00)

Page County 2 WSW Bingham 19 1620CST 0 0 Thunderstorm Wind (55EG)

Thunderstorm wind gusts estimated at over 60 mph caused extensive damage to a roof of a barn with other debris noted in the area. The wind damage was from the same storm that dropped hail at least 1 inch in diameter in the area.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph.

177 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Southwest Page County 1 ESE Shenandoah 19 1624CST 0 0 Hail (1.00)

Nickel to quarter-size hail was reported from the same super cell thunderstorm that caused wind damage in the area.

Page County 1 S Shenandoah 19 1627CST 0 0 0.00K 0.00K Hail (0.75)

From the same storm that produced hail up to quarter-size and wind damage in the area.

As low pressure aloft deepened from western Nebraska into South Dakota, thunderstorms developed across central and eastern Nebraska during the early to mid afternoon hours. Temperatures climbed into the 70s and 80s and dew point temperatures in the 60s created moderately unstable conditions across the region. Several lines of severe thunderstorms moved across the area producing some wind damage along with several reports of large hail.

Montgomery County 1 E Wallin 26 1830CST 0 0 0.00K 0.00K Hail (1.25)

This was the first event of an unsettled weather pattern that set up over the central Plains for the last several days in May. Warm moist air was returning to western Iowa as a warm front moved north into the area. Temperatures climbed into the 80s and dew points increased into the 60s by late afternoon over western Iowa. This led to increasing instability, and eventually isolated thunderstorms by late afternoon along the warm front over southwest Iowa. Only isolated severe weather, in the form of large hail, fell from these thunderstorms.

Montgomery County Red Oak 27 2339CST 28 0039CST 0 0 0.00K 0.00K Flash Flood

Heavy thunderstorm rainfall of 1 to 2 inches fell quickly across Red Oak leading to flash flooding in the city with numerous streets flooded. A thunderstorm complex moved out of eastern Nebraska and across southwest Iowa late in the evening on the 27th. The complex of storms brought heavy rainfall to southwest Iowa in areas where the ground was already nearly saturated. This led to isolated flash flooding. Monona County 79 N Tabor 28 1812CST 29 0233CST 0 0 0.00K 0.00K Flood

Heavy rainfall in late May across northwest Iowa led to significant rises on the Little Sioux River. After rising above flood stage, the river near Turin crested around 25.4 feet late in the evening of May 28th. This created only minor flooding inside the Federal Levee System with no impact to roads or structures.

Several episodes of heavy-rain producing thunderstorms caused flooding along the Missouri River in southeast Nebraska and southwest Iowa, as well as the Little Sioux River in west central Iowa.

Fremont County 1 W Farragut 29 1300CST 1315CST 0 0 0.00K 0.00K Flash Flood

Water was reported over Manti road for about 15 minutes. Montgomery County 1 SE Red Oak 29 1404CST 1504CST 0 0 0.00K 0.00K Flash Flood

Street flooding was one to two feet deep in places. Monona County 1 E Onawa 29 1910CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)

The brick front of a building facet at a car dealership was blown off and fell onto a couple of automobiles.

A cluster of thunderstorms developed over central Nebraska and spread east into an area of strong instability and weak inhibition over western Iowa. As a low level jet increased, so did the areal coverage of thunderstorms. This cluster of storms produced isolated areas of strong winds as well as heavy rain. Some flash flooding was also reported. Note: The estimated wind gust of 60 knots is equivalent to 69 mph.

178 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Southwest Fremont County 4 NW Percival 30 0745CST 3 SSW Mc Paul 31 0906CST 0 0 0.00K 0.00K Flood

Several episodes of heavy thunderstorm rainfall across eastern Nebraska and western Iowa in late May created flooding along the Missouri River across the the lowlands of western Fremont County. The river at Nebraska City crested twice, first on the morning of the 30th at 18.00 feet, with the second crest of 18.62 feet occurring on the evening of the 30th. The flooding was minor lowland flooding. Several episodes of heavy-rain producing thunderstorms caused flooding along the Missouri River in southeast Nebraska and southwest Iowa, as well as the Little Sioux River in west central Iowa.

Mills County 1 E Glenwood 30 1920CST 0 0 0.00K 0.00K Hail (1.00)

Fremont County 4 W Riverton 30 1935CST 0 0 0.00K 0.00K Hail (1.00)

This was the final severe weather event in a series of occurrences that were associated with a seasonably deep upper level low pressure over the northern Plains. Instability increased during the afternoon along and ahead of a stationary front across eastern Nebraska from low pressure over the Dakotas. Isolated to scattered thunderstorms developed in the late afternoon and tracked across eastern Nebraska and into western Iowa during the evening hours. Although isolated reports of damaging winds were reported, most of the events were large hail, some of which were significant in eastern Nebraska.

KANSAS, East Morris County 3 S Dunlap 08 1938CST 1939CST 0 0 0.00K 0.00K Hail (1.00)

Osage County 3 NNE Scranton 08 2003CST 2004CST 0 0 0.00K 0.00K Hail (0.88)

Shawnee County 1 ENE Watson 08 2020CST 2021CST 0 0 0.00K 0.00K Hail (1.00)

Shawnee County 3 SSE Watson 08 2023CST 0 0 0.00K 0.00K Hail (0.88)

Dickinson County 1 E Enterprise 08 2117CST 2118CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Pea to dime size hail that was wind driven. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Pottawatomie County 2 E Manhattan 08 2131CST 2132CST 0 0 0.00K 0.00K Hail (1.00)

Disorganized storms moved into the area during the evening hours of May 8th after initiating over western and central Kansas. Most of Kansas was within the warm sector as a mid-level trough advanced across the region. The instability was modest although the shear was relatively weak which inhibited persistent updrafts. The severe weather that was produced over the area was isolated and short lived.

Marshall County 5 E Oketo 15 1757CST 1759CST 0 0 0.00K 0.00K Hail (1.25)

179 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East Marshall County 4 E Oketo 15 1806CST 0 0 0.00K 0.00K Hail (0.88)

Marshall County 5 E Oketo 15 1810CST 1811CST 0 0 0.00K 0.00K Hail (1.25)

Marshall County 1 SSW Summerfield 15 1838CST 0 0 0.00K 0.00K Hail (0.75)

Marshall County 1 S Summerfield 15 1840CST 0 0 0.00K 0.00K Hail (0.75)

Marshall County 2 WSW Summerfield 15 1847CST 0 0 0.00K 0.00K Hail (0.88)

Marshall County 4 W Summerfield 15 1855CST 1856CST 0 0 0.00K 0.00K Hail (1.00)

A boundary stalled across portions of the area near the Kansas Nebraska border. As daytime heating weakened the cap, surface cape values approach 2500-3000 j/kg. With instability in place and the cap eroded storms were able to develop along the low- level convergence zone near the boundary. Mid-level flow was very weak as a upper level system passed to the south across Oklahoma. Therefore the updrafts did not persist and the storms were nearly stationary, quickly dissipating after sunset.

Ottawa County 3 ESE Delphos 18 2050CST 2052CST 0 0 Hail (1.75)

Ottawa County 1 SE Minneapolis 18 2050CST 2052CST 0 0 Thunderstorm Wind (70EG)

Wind gusts estimated around 80 mph. Several trees uprooted and damage to roofs. Tree branches down in the town of Minneapolis and Lidsney. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Cloud County 4 ESE Glasco 18 2102CST 2103CST 0 0 0.00K 0.00K Hail (1.00)

Cloud County 2 S Miltonvale 18 2110CST 2112CST 0 0 Thunderstorm Wind (52EG)

Roof blown off house and tree blown into house. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cloud County Miltonvale 18 2120CST 2123CST 0 0 Thunderstorm Wind (61EG)

Tree limbs down and pea size hail. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Geary County 1 E Milford 18 2130CST 2133CST 0 2 Thunderstorm Wind (78EG)

One camper flipped over with 2 minor injuries and another camper flipped. Most of the area without power.

Note: The estimated wind gust of 78 knots is equivalent to 90 mph.

180 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East Geary County Junction City 18 2135CST 2137CST 0 0 Thunderstorm Wind (52EG)

Power lines down in Junction City. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Geary County 3 W Junction City 18 2135CST 2137CST 0 0 Thunderstorm Wind (52EG)

Estimated 60 mph wind gusts. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Clay County 4 WNW Morganville 18 2135CST 2 E Clifton 2142CST 5.85 75 0 0 Tornado (EF1)

Small tornado skipped northeast and produced EF1 damage at a home along Parallel road on the Clay and Washington county border. Outbuildings were destroyed and grain bins were blown away. Ponderosa pines were sheared off near the stump in a narrow path to the northeast.

Geary County 2 WSW Brant 18 2140CST 2142CST 0 0 Thunderstorm Wind (52EG)

A trailer home slid off the foundation near Lilly and Lyons Creek rd. Time estimated from radar.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Washington County 1 W Palmer 18 2140CST 2142CST 0 0 Thunderstorm Wind (52EG)

Tree branches down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cloud County 2 WNW Clyde 18 2142CST 2143CST 0 0 0.00K 0.00K Hail (0.88)

Washington County 3 E Vining 18 2142CST 2145CST 1.14 75 0 0 Tornado (EF1)

The small tornado moved northeast of Parallel Road out of Clay County and dissipated after approximately 1 mile producing minor EF0 damage to trees. Riley County Riley 18 2143CST 2145CST 0 0 Thunderstorm Wind (52EG)

Power out in Riley. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Clay County 2 S Morganville 18 2148CST 2150CST 0 0 Thunderstorm Wind (52EG)

A machine shed destroyed. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Riley County 1 SE Leonardville 18 2150CST 2152CST 0 0 Thunderstorm Wind (52EG)

Pea size hail. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

181 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East Geary County 1 NE (FRI)Marshall Aaf Ft 18 2151CST 2153CST 0 0 Thunderstorm Wind (57MG)

Power out at Fort Riley. Large trees down in Junction City. Note: The measured wind gust of 57 knots is equivalent to 66 mph. Washington County 4 SSE Greenleaf 18 2157CST 2159CST 0 0 Thunderstorm Wind (61EG)

Penny size hail. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Riley County 2 W Manhattan 18 2159CST 2202CST 0 0 Thunderstorm Wind (52EG)

Reports of damage to building in industrial park on west side of town.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Pottawatomie County 1 E Swamp Angel 18 2200CST 2202CST 0 0 Thunderstorm Wind (52EG)

Winds estimated. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Washington County 1 SSW Washington 18 2200CST 2202CST 0.34 50 0 0 Tornado (EF0)

Very small brief tornado did minor damage to buildings in southwest portions of Washington. Tornado was only 50 yards wide and had winds of around 80 mph which would have been similar to surrounding 60 to 80 mph winds within the bow echo.

Marshall County 1 S Waterville 18 2203CST 2205CST 0 0 Thunderstorm Wind (52EG)

Three trailers flipped over and 6 inch tree limb through the side of a house.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Marshall County 3 ESE Schroyer 18 2203CST 2205CST 0 0 Thunderstorm Wind (52EG)

A large barn and numerous outbuildings destroyed. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Marshall County 1 W Bremen 18 2207CST 2209CST 0 0 Thunderstorm Wind (52EG)

Reports of power lines down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Marshall County 3 E Schroyer 18 2215CST 2217CST 0 0 Thunderstorm Wind (52EG)

Tree limbs down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

182 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East Pottawatomie County 1 NW Emmett 18 2222CST 2224CST 0 0 Thunderstorm Wind (52EG)

Trees down in the road. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Nemaha County 4 SSW Corning 18 2230CST 2232CST 0 0 Thunderstorm Wind (52EG)

Winds estimated. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Marshall County 4 NNE Vermillion 18 2231CST 2233CST 0 0 Thunderstorm Wind (52EG)

Winds estimated. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Pottawatomie County 1 NW Emmett 18 2244CST 2246CST 0 0 Thunderstorm Wind (61EG)

Winds estimated. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Jackson County 1 W Hoyt 18 2245CST 2247CST 0 0 Thunderstorm Wind (52EG)

Tree branches down in town. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Shawnee County 1 WSW Kiro 18 2245CST 2247CST 0 0 Thunderstorm Wind (52EG)

A large tree limb down at 7200 block of sw 10th st. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Shawnee County 1 S (TOP)Billard Arpt To 18 2254CST 2256CST 0 0 Thunderstorm Wind (52EG)

Power line down at 2000 block of se Iowa ave. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Shawnee County Topeka 18 2255CST 2256CST 0 0 Thunderstorm Wind (52EG)

Tree branches and power line down at 17th and Washburn. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Shawnee County 1 NNW (TOP)Billard Arpt To 18 2255CST 2256CST 0 0 Thunderstorm Wind (52EG)

Tree limbs down around 6 inch diameter. After 9pm CDT a squall line developed across north central Kansas and evolved into a bow echo. Widespread 60 to 80 mph winds with pockets of 80-100 mph winds occurred across a large part of Ottawa, Cloud, Clay, Geary, Washington and Riley counties between 10pm and 12 am Saturday night. At least 2 small tornadoes were confirmed that evening however most of the damage was due to straight line winds that in some cases were measured in excess of 100 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

183 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East Nemaha County 1 N Corning 19 1300CST 1301CST 0 0 0.00K 0.00K Hail (1.25)

Ottawa County 3 SSW Bennington 19 1357CST 1358CST 0 0 0.00K 0.00K Hail (1.00)

Marshall County 4 SSE Summit 19 1418CST 1419CST 0 0 0.00K 0.00K Hail (1.00)

Marshall County 1 E Bestwall 19 1422CST 1423CST 0 0 0.00K 0.00K Hail (0.75)

Wabaunsee County 1 N Vera 19 1505CST 1506CST 0 0 0.00K 0.00K Hail (1.00)

Shawnee County 4 W Rossville 19 1520CST 1521CST 0 0 Hail (1.50)

Riley County 6 S Bala 19 1528CST 1529CST 0 0 0.00K 0.00K Hail (1.00)

Clay County 3 ENE Wakefield 19 1534CST 1535CST 0 0 Hail (1.50)

Clay County 3 ENE Wakefield 19 1534CST 1535CST 0 0 Hail (1.50)

Geary County 4 NNW Milford 19 1547CST 1548CST 0 0 0.00K 0.00K Hail (0.88)

There were 50 mph winds also reported. Geary County 4 NNW Milford 19 1547CST 1548CST 0 0 0.00K 0.00K Hail (0.88)

There were 50 mph winds reported. Riley County 4 E Winkler 19 1550CST 1551CST 0 0 0.00K 0.00K Hail (1.00)

Ottawa County 1 E Bennington 19 1610CST 1611CST 0 0 0.00K 0.00K Hail (1.00)

Dickinson County 5 S Hope 19 1617CST 0.1 25 0 0 Tornado (EF0)

Report from Ramona volunteer FD of a brief tornado touchdown north of town in Dickinson County. No damage and circulation on ground was only visible briefly.

184 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East Wabaunsee County 1 SW Alta Vista 19 1622CST 1623CST 0 0 0.00K 0.00K Hail (1.00)

Morris County 4 NNE Council Grove 19 1625CST 1626CST 0 0 Thunderstorm Wind (52EG)

Damage to a home and an out building was destroyed on old K4.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Lyon County 2 WSW (EMP)Emporia Muni A19 1627CST 3 SSW Lang 1637CST 9 75 0 0 Tornado (EF1)

Tornado touched down near the Emporia airport and produced EF1 damage to a home and outbuilding on the property. The tornado produced a non-continuous damage path along a 9 mile track producing subsequent EF0 damage along the remainder of its track. The tornado lifted with additional straight line wind damage noted further north just west of Reading. There was some question whether this was another short lived tornado however after further investigation it appears that this was due to non-tornado winds within a bowing line segment of storms.

Riley County 1 E Randolph 19 1635CST 1636CST 0 0 0.00K 0.00K Hail (1.00)

Clay County 1 W Longford 19 1640CST 1641CST 0 0 Hail (1.00)

There were 40 to 50 mph winds reported. Clay County 3 E Longford 19 1650CST 1651CST 0 0 0.00K 0.00K Hail (1.00)

Clay County Clay Center 19 1652CST 1654CST 0 0 Thunderstorm Wind (52EG)

Large tree down in town square. Time estimated from radar. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Wabaunsee County Eskridge 19 1659CST 1700CST 0 0 Thunderstorm Wind (52EG)

Winds estimated. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Osage County 1 W Osage City 19 1703CST 1704CST 0 0 0.00K 0.00K Hail (1.00)

Osage County 1 W Osage City 19 1703CST 1704CST 0 0 Thunderstorm Wind (56EG)

Wind estimated. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

185 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East Osage County Burlingame 19 1710CST 1712CST 0 0 Thunderstorm Wind (60EG)

A 3 ft diameter tree fell on home. Mobile home blown 3 ft off its foundation. Several 1 ft diameter trees uprooted on the SE side of Burlingame. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Osage County 1 NW Melvern 19 1715CST 1716CST 0 0 Thunderstorm Wind (52EG)

A 4 ft diameter tree blown onto house. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Osage County 3 WNW Lyndon Pomona Lk A 19 1717CST 1718CST 0 0 0.00K 0.00K Hail (1.00)

Wind gusts around 40 to 50 mph. Osage County 2 WSW Overbrook 19 1725CST 1726CST 0 0 0.00K 0.00K Hail (1.00)

Shawnee County 1 N (FOE)Forbes Fld Tope 19 1726CST 1727CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

Measured. Note: The measured wind gust of 50 knots is equivalent to 58 mph. Shawnee County 2 WSW Lake Shawnee 19 1728CST 1729CST 0 0 Thunderstorm Wind (52EG)

Report of a 1 ft diameter tree limb snapped off of a healthy tree.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Shawnee County 1 N (TOP)Billard Arpt To 19 1732CST 1733CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

Measured. Note: The measured wind gust of 53 knots is equivalent to 61 mph. Douglas County Lawrence Arpt 19 1750CST 1751CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)

Measured. Note: The measured wind gust of 51 knots is equivalent to 59 mph. Jackson County 1 E Whiting 19 1755CST 1756CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Winds estimated. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jefferson County 1 W Mc Louth 19 1755CST 1756CST 0 0 Thunderstorm Wind (52EG)

Trees blown down on K16 about 1.5 miles W of Mclouth. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

186 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East Jefferson County 1 E Mc Louth 19 1755CST 1756CST 0 0 Thunderstorm Wind (52EG)

Tree came down on vacant house. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jefferson County 1 W Mc Louth 19 1755CST 1756CST 0 0 Thunderstorm Wind (52EG)

Winds estimated. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jefferson County 1 E Oskaloosa 19 1755CST 1756CST 0 0 Thunderstorm Wind (52EG)

Damage to metal roofs at a lumber yard on HWY 59. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Brown County 1 S Powhattan 19 1803CST 1804CST 0 0 Thunderstorm Wind (52EG)

A 10 inch diameter limb came down in Powhattan. Time estimated from radar.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cloud County 3 ESE Jamestown 19 1856CST 1857CST 0 0 Thunderstorm Wind (52EG)

Dime size hail. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Republic County 2 E Norway 19 1900CST 1901CST 0 0 Thunderstorm Wind (52EG)

A tree blown over the road. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Republic County 3 W Talmo 19 1908CST 1909CST 0 0 0.00K 0.00K Hail (1.00)

A supercell thunderstorm became embedded within a line of storms and produced a small EF1 tornado near the Emporia airport. This tornado produced a non-continuous damage path approximately 9 miles long with the majority of the damage rated EF0. The EF1 damage was located near the airport to a home and outbuilding that had portion of the roof removed.

Jefferson County 1 SE Perry 27 0726CST 0 0 0.00K 0.00K Hail (0.75)

Cloud County 4 NW Macyville 27 1930CST 0 0 0.00K 0.00K Hail (0.88)

Winds were gusty with no damage. Marshall County 3 SSW Herkimer 27 2040CST 1 WNW Marysville 2045CST 3.83 150 0 0 Tornado (EF0)

Survey revealed EF2 damage with winds to around 130 mph produced significant damage to a John Deere dealership and a roofing warehouse just south of highway 36 and just west of Marysville, Kansas. The tornado traveled approximately 3 to 4 miles before weakening and lifting near highway 77 north of Marysville. No injuries were reported.

187 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East

Severe thunderstorms impacted parts of northern Kansas. The most notable event occurred just west of Marysville where a strong tornado damaged approximately 30 homes and businesses. No injuries were reported.

Anderson County 1 W Harris 28 1122CST 0 0 0.00K 0.00K Hail (0.88)

Nemaha County 5 SW Centralia 28 1435CST 1436CST 0 0 Hail (1.50)

Nemaha County 1 S Centralia 28 1505CST 1507CST 0 0 Hail (2.50)

Nemaha County 4 S Centralia 28 1516CST 2 NW Corning 1534CST 4.4 900 0 0 Tornado (EF3)

NWS storm survey indicated that a tornado touched down initially approximately 4 miles west of Corning. The tornado became large and strong producing EF3 damage along its path. It moved slowly and eventually turned north northeast before ending. Maximum winds were estimated around 150 mph.

Nemaha County 1 NE Kelly 28 1520CST 1522CST 0 0 Hail (4.00)

Time estimated from radar. Nemaha County 2 W Corning 28 1520CST 0.01 50 0 0 Tornado (EF1)

The resident of the EF-1 house south of the EF-3 farm described seeing several sub-tornadoes along with the main one. It appears that a smaller satellite tornado hit this location producing EF1 damage to the south of the main strong tornado. This would have been the 3rd tornado associated with this supercell.

Nemaha County 5 SSW Oneida 28 1537CST 1538CST 0 0 0.00K 0.00K Hail (1.00)

Nemaha County 1 NE Corning 28 1545CST 0.01 50 0 0 Tornado (EF1)

Brief touchdown with house and tree damage. This was the last tornado associated with the supercell thunderstorm that produced the strong tornado to the west of Corning earlier. Ottawa County Lindsey 28 1630CST 1633CST 0 0 Hail (3.50)

Ottawa County 2 E Lindsey 28 1632CST 1633CST 0 0 Hail (1.75)

Ottawa County 4 NNE Culver 28 1633CST 0.01 25 0 0 Tornado (EF0)

Video shows a brief rope tornado touch down around 533pm CDT nearly 12 minutes prior to the main violent tornado touch down.

188 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East Ottawa County 2 E Lindsey 28 1636CST 1638CST 0 0 Hail (1.75)

Ottawa County 5 SSW Lindsey 28 1645CST 4 W Bennington 1745CST 2.33 1000 0 0 Tornado (EF3)

A large tornado developed around 545pm CDT and proceeded to move slowly east for approximately 2 miles before turning back to the west and south toward highway 18. The tornado was lost in rain and was not visible after approximately 630 pm however mobile doppler radar supplemental data indicates that this tornado likely persisted through around 645 pm CDT. This tornado was nearly 1 mile wide at times and NWS damage survey found EF3 damage indicators suggesting winds to around 150 mph. 2 mobile doppler radars were within 5-6km of this tornado and did sample winds around and above 100m well in excess of 166 mph. In fact they measured winds of 247 mph at 100m! Nothing close to EF5 damage was revealed on the survey. However, given the lack of damage indicators available within the track of the tornado we have incorporated the mobile doppler wind data into our assessment of the tornado strength and we believe that this tornado contained at least EF4 winds in excess of 166 mph. We acknowledge the current directive which states that one cannot rate tornado intensity by non- damage data sources so we will enter this in as EF3 however we are stating in the comments that this was a violent tornado with most likely EF4 intensity at some point during its life. Amazingly no serious injuries or fatalities were reported. However there were approximately 100 head of cattle that were killed by the tornado.

Ottawa County 1 ESE Minneapolis 28 1649CST 1651CST 0 0 Hail (1.25)

Ottawa County 1 ESE Minneapolis 28 1653CST 0 0 0.00K 0.00K Hail (0.88)

Marshall County 4 W Frankfort 28 1711CST 1713CST 0 0 Hail (1.50)

Cloud County 2 SE St Joseph 28 1714CST 1715CST 0 0 0.00K 0.00K Hail (1.00)

Cloud County 2 WNW Clyde 28 1722CST 1723CST 0 0 0.00K 0.00K Hail (1.00)

Nemaha County 3 ESE Kelly 28 1730CST 1830CST 0 0 0.00K 0.00K Flash Flood

Sheriff reports 96th road is flooded around Kelly, as well as north of Corning and Goff.

Washington County 3 ESE Brantford 28 1735CST 1736CST 0 0 0.00K 0.00K Hail (1.00)

Brown County 3 SSW Robinson 28 1745CST 1746CST 0 0 0.00K 0.00K Hail (1.00)

Marshall County 3 ESE Winifred 28 1745CST 1746CST 0 0 0.00K 0.00K Hail (1.00)

189 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East Ottawa County 2 ESE Lindsey 28 1745CST 1747CST 0 0 Hail (1.75)

Washington County 1 S Morrowville 28 1745CST 1746CST 0 0 0.00K 0.00K Hail (1.00)

Brown County 4 E Robinson 28 1745CST 1747CST 0 0 Thunderstorm Wind (63MG)

Measured by spotter and small tree limbs down. Note: The measured wind gust of 63 knots is equivalent to 72 mph. Brown County 3 NNE Robinson 28 1754CST 1757CST 0 0 Hail (2.00)

Ottawa County 2 ESE Lindsey 28 1758CST 1759CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Winds estimated. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Brown County 1 WNW Fairview 28 1812CST 0 0 0.00K 0.00K Hail (0.88)

Ottawa County 1 ENE Minneapolis 28 1820CST 1920CST 0 0 0.00K 0.00K Flash Flood

The basement of a home was flooded with a couple inches of water.

Ottawa County 5 NNE Culver 28 1835CST 1935CST 0 0 0.00K 0.00K Flash Flood

At intersection of K106 and Evergreen road water flowing over road several inches deep for a stretch of 300 yards.

KSZ020 Cloud 28 1838CST 1840CST 0 0 0.00K 0.00K High Wind

Ottawa County 2 SE Lindsey 28 1920CST 2020CST 0 0 0.00K 0.00K Flash Flood

Numerous roads flooded by running water. Nemaha County 4 NE Kelly 28 1930CST 0 0 0.00K 0.00K Hail (0.88)

KSZ020 Cloud 28 2129CST 2131CST 0 0 0.00K 0.00K High Wind

190 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East Jackson County 3 NNE Holton 28 2145CST 2245CST 0 0 0.00K 0.00K Flash Flood

Reports of moving water over the roadway near Q4 rd and 254th st.

Jackson County 1 E Netawaka 28 2145CST 2 NNW Whiting 2245CST 0 0 0.00K 0.00K Flash Flood

Reports of moving water over the roadway on K9 between Whiting and Netawaka.

Nemaha County Centralia 29 0105CST 0205CST 0 0 0.00K 0.00K Flash Flood

Reports of of K187 closed near Centralia due to water over the roadway.

Nemaha County 2 NE Seneca 29 0105CST 0205CST 0 0 0.00K 0.00K Flash Flood

Report of water over roadway on K63 approx 2 miles north of US36 near Seneca.

Brown County 3 WSW Mercier 29 0105CST 0205CST 0 0 0.00K 0.00K Flood

Water over the roadway on 130th between Foxtail and Dewberrey on the Kickapoo reservation.

Brown County 4 NNE Robinson 29 0105CST 0205CST 0 0 0.00K 0.00K Flood

Water over road on 250th between Sagebrush and Thrasher. Jackson County 1 NNE Holton 29 0105CST 0205CST 0 0 0.00K 0.00K Flood

Truck reported water over the roadway on US75 at mile marker 201.

Brown County 4 NNE Robinson 29 0127CST 0227CST 0 0 0.00K 0.00K Flood

Water over road on 250th between Sagebrush and Thrasher. Ottawa County 1 W Culver 29 1545CST 1547CST 0 0 Thunderstorm Wind (52EG)

Reports of several trees blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Ottawa County 3 SE Lamar 29 1600CST 1602CST 0 0 Thunderstorm Wind (52EG)

Winds estimated.

191 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East

Supercell Thunderstorms developed along a stationary boundary and produced large tornadoes during the afternoon and evening of May 28th 2013. 2 tornadoes occurred in Nemaha county Kansas and at least 1 violent long lived tornado occurred in Ottawa County Kansas. Amazingly no serious injuries and no fatalities were reported. Later that night slow moving storms dumped 5 to 10 inches of rain across parts of Brown and Nemaha counties in Kansas. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Geary County 3 NW Olson 31 0056CST 0057CST 0 0 Hail (1.25)

Wabaunsee County 3 WSW Volland 31 0125CST 0126CST 0 0 0.00K 0.00K Hail (1.00)

Delayed report. Shawnee County 2 SSW Valencia 31 0213CST 0215CST 0 0 Hail (1.75)

Mostly quarters and ping pong ball size. There were a few golf balls.

Shawnee County 5 SE Valencia 31 0214CST 0 0 Hail (1.50)

Delayed report. Shawnee County 3 SSE Valencia 31 0215CST 0216CST 0 0 Hail (1.50)

Shawnee County 2 N Pauline 31 0221CST 0223CST 0 0 Hail (1.75)

Shawnee County 3 SSW Topeka 31 0222CST 0224CST 0 0 Hail (1.75)

Shawnee County 4 WNW Pauline 31 0222CST 0224CST 0 0 Hail (2.00)

Photo via social media measured 2 inches. Morris County 1 N Helmick 31 0225CST 0 0 0.00K 0.00K Hail (0.75)

Shawnee County 3 WSW Lake Shawnee 31 0228CST 0230CST 0 0 Hail (2.25)

Shawnee County Tecumseh 31 0233CST 0234CST 0 0 0.00K 0.00K Hail (1.00)

Shawnee County Tecumseh 31 0234CST 0236CST 0 0 Hail (1.75)

Photo via social media.

192 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East Osage County 1 S Lyndon 31 0310CST 0311CST 0 0 0.00K 0.00K Hail (1.00)

Shawnee County 3 N Menoken 31 0405CST 2 NE Kiro 0505CST 0 0 0.00K 0.00K Flash Flood

There was 5 to 6 inches of running water over road at 39th and Leedy.

Douglas County 2 WSW Lawrence 31 0513CST 0613CST 0 0 0.00K 0.00K Flash Flood

Street flooding at 15th and Iowa, as well as 23rd and Ousdahl.

During the early morning hours of May 31 some rather strong thunderstorms formed ahead and along a front that was stretched across eastern Kansas. These thunderstorms were able to produce hail that ranged from one to two inches in diameter. The upper air sounding earlier in the night revealed a large amount of CAPE located in the hail growth zone. These storms reformed and trained over the same areas which caused some minor flash flooding.

KANSAS, Extreme Southeast Bourbon County 1 N Bronson 01 1902CST 0 0 0.00K 0.00K Hail (1.00)

An isolated severe thunderstorm produced a report of large hail.

Bourbon County 1 NW Ft Scott 19 2112CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Penny sized hail was also reported. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Bourbon County 1 NW Ft Scott 19 2115CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A tree was reported down across Franklin Street in Fort Scott. Nickel sized hail was also reported one mile southeast of town.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cherokee County 1 SSW Sherman 19 2219CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Winds gusts between 60 to 70 mph were estimated. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Cherokee County 2 W Columbus 19 2230CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A tree one foot in diameter was reported down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cherokee County 1 SW Stippville 19 2230CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

A barn was reported damaged. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cherokee County West Mineral 19 2232CST 0 0 0.00K 0.00K Hail (0.88)

193 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Extreme Southeast Crawford County 2 SE Kirkwood 19 2245CST 0 0 0.00K 0.00K Hail (0.88)

This report was at the intersection of 400 Highway and Highway 69.

Crawford County 1 S Pittsburg 19 2250CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Nickel sized hail was reported as well. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Crawford County 2 SW Monmouth 20 1627CST 0 0 0.00K 0.00K Hail (0.88)

Crawford County 1 S Pittsburg 20 1650CST 0 0 20.00K 0.00K Thunderstorm Wind (52EG)

Numerous trees were reported down and power lines near Pittsburg. A home sustained roof damage on the east side of Pittsburg near 16th Street and Kind Highway. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Crawford County 1 S Pittsburg 20 1653CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

Several trees were blown down. A strong negatively titled upper level trough developed over the central portions of the country. A slow moving cold front moved into through southeastern Kansas causing several rounds of severe thunderstorms producing widespread wind damage and hail. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Cherokee County 2 WSW Columbus 30 0642CST 0742CST 0 0 0.00K 0.00K Flood

Numerous low water crossings throughout the county were flooded.

Crawford County 4 S Farlington 30 0813CST 0913CST 0 0 0.00K 0.00K Flood

High water was flowing over the road on Highway 7. Crawford County 1 NE Girard 30 1146CST 0 0 0.00K 0.00K Hail (0.88)

Crawford County 1 SE Greenbush 31 1640CST 0 0 0.00K 0.00K Hail (0.75)

Crawford County 1 NE Girard 31 1657CST 0 0 0.00K 0.00K Hail (1.00)

Crawford County 1 SSE Girard 31 1710CST 0 0 100.00K 0.00K Hail (2.50)

Tennis ball size hail damaged cars and some roofs. Crawford County 1 S Franklin Arpt 31 1825CST 1925CST 0 0 0.00K 0.00K Flash Flood

Highway 69 was flooded north of Frontenac.

194 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Extreme Southeast Crawford County 1 NW Ringo 31 1825CST 1925CST 0 0 0.00K 0.00K Flash Flood

Highway 47 east of Girard was flooded. Crawford County 1 N Arma 31 1845CST 0 0 0.00K 0.00K Hail (1.25)

A picture from Facebook showed the hail. Cherokee County 5 SSW Faulkner 31 1900CST 0 0 0.00K 0.00K Hail (0.75)

Cherokee County 5 SSW Faulkner 31 1900CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Large tree limbs up to 12 inches in diameter were snapped. A slow moving trough across the central portions of the country helped develop several rounds of severe thunderstorms and flash flooding across southeast Kansas. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

KANSAS, North Central

KSZ005>007-017> Jewell - Mitchell - Osborne - Phillips - Rooks - Smith 019 01 0000CST 31 2359CST 0 0 0.00K 0.00K Drought

According to the U.S. Drought Monitor, May marked the twelfth consecutive month of moderate (or worse) drought across nearly this entire six-county portion of North Central Kansas, continuing one of the most notable droughts since the 1950s. However, areas mainly east of the Highway 281 corridor realized some limited improvement thanks to decent monthly rainfall. More specifically, eastern portions of Smith and Osborne counties improved to D2 Severe Drought over the course of the month, while southeastern Jewell County improved to D1 Moderate Drought. In Mitchell County, most of the county was in D1 Moderate Drought at month's end. However, a small sliver of eastern Mitchell County managed to shake free of official drought conditions, although was still assigned D0 Abnormally Dry. This marked the first time since June 2012 that any portion of the area featured something better than D1 drought. Farther west, conditions stayed worse, as the majority of Phillips and Rooks counties remained in D3 Extreme Drought, with the far western fringes of those counties still brushed with D4 Exceptional Drought (the worst-possible category). Based on reports from around 20 NWS cooperative observers, and also incorporating radar-derived estimation, roughly 60 percent of the six-county area observed below normal May precipitation (based on normals generally between 3.75-4.25 inches). The driest areas were largely concentrated across Phillips, northwest Smith, western Rooks, western Jewell and southeast Osborne counties. In contrast, above normal rainfall concentrated within Mitchell, eastern Jewell and western Osborne counties. However, even within the below normal areas most places still measured at least 1.50 for the month. Per NWS cooperative observers, several of the highest-known May precipitation totals included 4.52 at Jewell, 4.39 at Mankato and 4.27 four miles west-northwest of Plainville. On the drier side of things, some of the lowest monthly totals were 1.45 near Long Island, 1.51 at Logan and 1.59 at Phillipsburg. In between these wettest and driest extremes, the majority of the area reported totals between 2.00 and 3.50. Remarkably, for some areas a small fraction of May precipitation consisted of snow, as an unusually cold start to the month brought very light accumulations up to around 1 primarily on the 1st. Focusing on the longer-range picture of year-to-date precipitation amounts (January-May), most of the six-county area received between 60 and 100 percent of normal, with Phillips County the overall-driest. In parts of the area, a near normal trend certainly was not enough to end drought issues, although the severity had eased somewhat since fall 2012. According to the USDA Kansas Crop Progress and Condition Report for the week ending June 9th, topsoil moisture across the north central district had recently degraded a bit, rating 31% short to very short and 65% adequate (versus 15% and 82%, respectively, in early May). Subsoil moisture supplies in the area exhibited a very slight improvement during that same time, but were still 59% short to very short. The state-averaged wheat crop rated 47% poor to very poor and only 28% good to excellent. However, the young corn and soybean crop rated 60% and 64% good to excellent, respectively. Range and pasture conditions across Kansas rated 45% poor to very poor, a 17% improvement since early May. Hay and forage supplies had also improved slightly, with the poor to very poor ratings decreasing from 71% to 59%. This slight improvement was also noted in stock water supplies, checking in at 35% short to very short, versus 48% in early May.

Osborne County Osborne 08 1800CST 0 0 0.00K 0.00K Hail (1.00)

195 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, North Central Osborne County 5 W Osborne 08 1810CST 1818CST 0 0 150.00K 1.00M Hail (1.75)

Hail ranging in size from quarters to golf balls was reported.

Rooks County 3 S Plainville 08 1902CST 0 0 0.00K 0.00K Hail (1.00)

Smith County 4 S Gaylord 08 1920CST 0 0 0.00K 0.00K Hail (0.88)

Around 5 pm CDT on this Wednesday, a thunderstorm rapidly formed over northwestern Russell county and was quickly joined by a string of other storms. These storms formed a short line segment, the northeastern end of which extended into Osborne county. Just before 5:30 pm CDT, a new storm developed near the town of Osborne. The storm remained stationary until an apparent storm split occurred around 6 pm CDT. This newly split cell produced several reports of severe hail, roughly 5 miles west of Osborne. The hail was as large as golf balls. The southwestern terminus of the line segment of storms remained stationary over northeastern Ellis county, until around 6:20 pm CDT, when the storm split. The newly split left storm slowly drifted into southern Rooks county, briefly producing one inch hail south of Plainville just after 7 pm CDT. Thereafter, the storm rapidly weakened. The upper-level flow was very complex, but an upper-level trough was crossing the Northern Plains. The storms formed within an inverted trough, between low pressure over the Oklahoma Panhandle, and a cold front progressing through the Northern Plains. Temperatures in the mid-70s and dewpoints in the mid-50s resulted in MLCAPE between 1000 and 1500 J/kg. While mostly short-lived multicells occurred, deep layer and low-level shear was marginally strong enough for the supercells.

Rooks County Damar 18 1720CST 0 0 0.00K 0.00K Hail (0.75)

Phillips County 4 E Long Is 18 1726CST 0 0 0.00K 0.00K Hail (1.00)

Phillips County 4 E Long Is 18 1726CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts were estimated at 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Osborne County 5 W Alton 18 1734CST 0 0 0.00K 0.00K Hail (0.75)

Osborne County Natoma 18 1839CST 0 0 0.00K 0.00K Hail (0.88)

At mid-afternoon on this Saturday, discrete storms initiated over western Kansas, near a surface low and dryline and north of a developing warm front. Several of the storms organized along a common cold pool and moved northeast across north-central Kansas as an arc-shaped squall line. Several of the embedded storms produced hail just under one inch in diameter. There was a single report of one inch hail and estimated winds to 60 mph in northern Phillips county. An upper-level trough was digging through the desert southwest and lee-side cyclogenesis was underway. Temperatures in the low-mid 80s and rich dewpoints in the mid-upper 60s resulted in MLCAPE of 2500-5000 J/kg. While deep layer shear was strong enough to support supercell storm structures, the number of cells resulted merging of individual cold pools and ultimately a multicell storm mode.

Osborne County Osborne 19 1755CST 0 0 25.00K 0.00K Hail (1.75)

Osborne County Osborne 19 1755CST 0 0 5.00K 0.00K Thunderstorm Wind (62MG)

A measured wind gust of 71 mph was recorded by a home weather station.

Note: The measured wind gust of 62 knots is equivalent to 71 mph.

196 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, North Central Mitchell County Glen Elder 19 1815CST 1835CST 0 0 75.00K 2.00M Thunderstorm Wind (61EG)

Wind gusts out ahead of and with this thunderstorm produced wind gusts estimated near 70 mph. These wind gusts resulted in roof damage at a lumber yard in Glen Elder and a tree 18 inches in diameter being uprooted 4 miles south of town. Dime to nickel size hail was also reported, with some piles of hail being 6 inches deep.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Mitchell County 5 WNW Beloit 19 1820CST Beloit Arpt 1840CST 0 0 50.00K 0.00K Thunderstorm Wind (58MG)

Wind gusts out ahead of and with this thunderstorm produced wind gusts in excess of 60 mph, including a measured gusts of 63 and 67 mph by the Beloit Airport AWOS. These wind gusts resulted in damage to a garage in Beloit and knocked down a couple power poles west-northwest of town. This Sunday afternoon event was part of the same large-scale system that produced a couple severe thunderstorms the previous day. A digging upper-level trough was over the western United States, while low pressure continued to organize over South Dakota, becoming vertically-stacked by evening. The associated cold front progressed through North Central Kansas during peak heating, initiating the thunderstorms. Prior to thunderstorm development, a subtle short-wave trough moved through, introducing cooler and drier air aloft and increasing potential instability. The exit region of an 85 knot upper-level jet streak nosed into Oklahoma, coupling with the cold front to create deep, large-scale lift. Surface temperatures peaked around 80, while dewpoints were in the 60s ahead of the front. MLCAPE was not overly impressive, with 1000-1500 J/kg ahead of the front. Thunderstorms were numerous this afternoon, especially over eastern Kansas where the first batch of multicell storms developed. A second batch also affected eastern Kansas but they began modestly over North Central Kansas as a few scattered storms. The strongest of these storms developed over eastern Rooks county, just after 6 pm CDT, and intensified as it moved east across Osborne and Mitchell counties. Upon entering Mitchell county around 7:10 pm CDT, the storm bowed outward. This is when it began producing wind damage roughly along Highway 24, from Glen Elder east to Beloit. Trees and large branches were blown down, and a roof was blown off a building at a lumber yard. In Beloit, winds of 63 mph were measured at the airport. Note: The measured wind gust of 58 knots is equivalent to 67 mph.

Smith County Smith Center Arpt 26 0024CST 0 0 25.00K 0.00K Thunderstorm Wind (58MG)

A wind gust of 67 mph was recorded by the Smith Center Airport AWOS and was the result of a decaying thunderstorm in the area. Law enforcement reported tree damage in Smith Center, including one tree which was knocked down and blocking a driveway. Around 130am CDT on this early Sunday morning, a 67 MPH wind gust occurred at the Smith Center airport, resulting in at least a few instances of tree damage in town. These strong gusts, likely out of the south-southeast, occurred on the back side of a steadily-weakening line of thunderstorms and might have been associated with a wake low. Although there were no other reports of severe-criteria wind within this six-county portion of North Central Kansas during the night, it's likely that fairly widespread gusts of at least 40-50 MPH occurred both along and behind this line of convection. Breaking down event timing, a small cluster of multicell storms first rumbled into Phillips and Rooks counties from the west around 11pm CDT on the 25th...a continuation of scattered activity that had been slowly drifting east from extreme northwest Kansas since mid-afternoon. During the ensuing few hours, this strong multicell cluster evolved into a linear mode as it pushed into Smith and Osborne counties before rapidly dissipating. A small, briefly strong storm redeveloped over Rooks County between 230-330am CDT, but that was pretty much it for the night. On the large scale aloft, this event occurred under fairly modest quasi-zonal flow, as North Central Kansas remained well- removed from stronger flow associated with broad longwave troughs centered near both the northwest and northeast corners of the United States. However, the presence of subtle, low-amplitude shortwave troughs passing through the flow helped ignite strong to severe convection during the afternoon and evening hours to the west and northwest of the local area, in an environment featuring steep low to mid level lapse rates, around 2500 J/kg mixed-layer CAPE, and around 35 knots of 0-6 kilometer deep layer wind shear. The modest intensification of storms well after nightfall was likely aided by an increasing low level jet evident at 850 millibars. At the surface, south to southeast breezes prevailed across North Central Kansas through the night, as the area resided south of a quasi-stationary front stretched from north central into eastern Nebraska. Note: The measured wind gust of 58 knots is equivalent to 67 mph.

Smith County 8 N Kensington 27 1704CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated near 60 MPH. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

197 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, North Central Smith County 4 NW Smith Center 27 1732CST 1736CST 0.38 15 0 0 0.00K 0.00K Tornado (EF0)

This tornado touched down in open land northwest of Smith Center and was only on the ground for a few minutes. The maximum wind speed was estimated to be near 75 mph, but this tornado caused no damage.

Smith County 5 S Cora 27 1745CST 1746CST 0.01 10 0 0 0.00K 0.00K Tornado (EF0)

This tornado briefly touched down north of Bellaire. The maximum wind speed was estimated to be near 75 MPH, but this tornado caused no damage. Smith County 3 NE Smith Center 27 1746CST 0 0 0.00K 0.00K Hail (1.00)

Smith County 3 N Lebanon 27 1804CST 1810CST 2.18 1580 0 1 1.40M 3.00M Tornado (EF3)

This tornado affected two counties in north central Kansas, touching down north of Lebanon in Smith County and lifting north of Esbon in Jewell County. The maximum wind speed was estimated to be near 140 MPH, with a maximum path width of 1580 yards. Along its path, this tornado caused minor to major tree damage, overturned irrigation pivots, snapped power poles and damaged or destroyed grain bins and outbuildings. Four homesteads suffered damage, with the hardest hit locations approximately 3 miles northeast of Lebanon in Smith County. Two homes in this area were heavily damaged or destroyed, with one losing its entire second level. This location also completely lost grain bins, a large outbuilding and newly constructed garage. One person suffered minor injuries and was treated and released from an area hospital.

Jewell County 3 SSW Salem 27 1810CST 1 NNW Esbon 1820CST 3.56 1580 0 1 0.40M 0.50M Tornado (EF3)

This tornado affected two counties in north central Kansas, touching down north of Lebanon in Smith County and lifting north of Esbon in Jewell County. The maximum wind speed was estimated to be near 140 MPH, with a maximum path width of 1580 yards. Along its path, this tornado caused minor to major tree damage, overturned irrigation pivots, snapped power poles and damaged or destroyed grain bins and outbuildings. Four homesteads suffered damage, with the hardest hit locations approximately 3 miles northeast of Lebanon in Smith County. Two homes in this area were heavily damaged or destroyed, with one losing its entire second level. This location also completely lost grain bins, a large outbuilding and newly constructed garage. One person suffered minor injuries and was treated and released from an area hospital.

Mitchell County 4 WNW Beloit 27 1832CST 0 0 0.00K 0.00K Hail (1.00)

Jewell County 6 N Esbon 27 1848CST 0 0 0.00K 0.00K Hail (1.00)

Jewell County Burr Oak 27 1902CST 1910CST 0 0 150.00K 1.00M Hail (2.00)

Ping pong ball to hen egg size hail was reported. Jewell County Mankato 27 1910CST 1940CST 0 0 150.00K 2.00M Hail (2.50)

Hail up to the size of tennis balls was reported.

198 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, North Central Jewell County 2 NW Montrose 27 1935CST 0 0 250.00K 1.00M Hail (5.25)

Numerous tennis ball to softball size hail stones reported, with the largest measuring 5.25 inches.

This event occurred on a Monday, which was also Memorial Day. The first and most intense thunderstorm of the day developed over northern Phillips county just after 4:30 pm CDT. This was the southern storm in a line segment of supercell storms, which exhibited multicell characteristics. This line extended northeast across the border into southern Nebraska. During the following four hours, this storm tracked east across Phillips, Smith and Jewell counties. Numerous storm chasers followed this storm. The initial storm report came from the rear flank of the storm, over Phillips county. It was here that the RFD produced winds estimated around 60 mph. As the storm moved east, two weak, brief tornadoes were spotted just northwest and northeast of Smith Center. A rain-wrapped EF-3 tornado, described as a wedge, then followed, tracking just north of Lebanon and Esbon. The tornado track was roughly 6 miles long and at its widest point, was nearly one mile wide. Even though this tornado was over rural areas, it still managed to produce damage. The worst damage was to a home that lost its roof and part of its second story. On radar, the hook echo was short and stubby. Because of this, there was substantial rain within the mesocyclone, which made it difficult to see the tornado except in its immediate vicinity. The Tornado Intercept Vehicle endured a direct hit from the tornado, with video confirmation. As this storm continued into Jewell County, no more reports of wind damage or tornadoes were received. However, the hail dramatically increased with multiple reports of hail to the size of tennis balls. The largest hail was yet to occur. Near Montrose, hail a little large than grapefruit size was reported (5 and 1/4 inches). After 7:00 pm CDT, other multicell storms developed, mainly affecting Mitchell county. These storms only produced a single report of 1 inch hail northwest of Beloit. With the 8 am CDT Severe Weather Outlook, the Storm Prediction Center upgraded North Central Kansas to a moderate risk for severe thunderstorms. A weak short-wave trough was approaching the region, embedded within a broad upper-level trough, over the western United States. A quasi-stationary front, oriented in an east-west fashion, extended across Nebraska. During the early morning hours, a mesoscale convective system tracked through eastern Nebraska southeastward into Missouri. This MCS laid down an outflow boundary that extended across northern Kansas, to a lee-side low. It was to the north of this outflow boundary that storms initiated. At the time of initial thunderstorm development, temperatures were in the lower to middle 80s to near 90, with dewpoints in the middle 60s. This resulted in an extremely unstable atmosphere, with MLCAPE between 3000 and 4000 J/kg. Deep layer shear was 40 to 50 knots, which was more that strong enough for supercell storm structures.

Mitchell County 9 ENE Hunter 28 1848CST 0 0 50.00K 750.00K Hail (1.75)

Mitchell County Tipton 28 1949CST 1958CST 0 0 0.00K 0.00K Hail (1.00)

Although this portion of North Central Kansas narrowly missed a more widespread onslaught of severe weather that impacted parts of central and northeast Kansas on this Tuesday afternoon and evening, a pair of severe storms snuck into Mitchell County and dropped quarter to golf ball size hail in the Hunter and Tipton areas. These storms primarily resided within the county between 730-930 pm CDT, as both of them peaked in intensity for around one hour before quickly dissipating. The first storm, which moved into areas east of Hunter out of northern Lincoln County, was a northwest-drifting offshoot from a nearly stationary cluster of severe storms centered over Ottawa County. The second storm, which formed slightly west of the first, tracked north across far western Mitchell County including the Tipton area. One of the main reasons this area of North Central Kansas was spared a more widespread severe weather threat was its position just northwest of a fairly well-defined quasi-stationary front stretched from west central to northeast Kansas. During the afternoon and early evening hours, the vast majority of severe storms in the region formed on and remained close to this surface front, largely because southwesterly mid level winds were aligned nearly parallel to it. This southwesterly mid and upper level flow was focused on the eastern side of a large-scale trough moving into the Rockies. In addition, the local area found itself on the backside of a departing mesoscale convective vortex (MCV) during the late afternoon, also helping to concentrate the majority of severe weather just to the south and east. Severe weather parameters in the Mitchell County area during the evening hours featured strong instability with around 3000 J/kg mixed-layer CAPE, in the presence of 30-40 knots of 0-6 kilometer deep layer shear.

Phillips County 1 SSW Prairie View 29 1910CST 1912CST 0.78 40 0 0 80.00K 0.00K Tornado (EF1)

This tornado touched down approximately 1 mile south of Prairie View and was on the ground for a couple minutes before lifting just outside the southeast edge of town. This EF1 rated tornado had a maximum wind speed estimated to be 90 mph and a maximum width of 40 yards. Damage from this tornado was primarily confined to one farmstead, with 3 outbuildings being damaged or destroyed, tree damage with limbs up of 6 to 8 inches in diameter being broken and the home sustained window damage.

199 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, North Central Phillips County Logan 29 1924CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts were estimated to be near 60 MPH. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Rooks County Webster Res 29 1930CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts were estimated to be near 60 MPH. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Phillips County 3 W Long Is 29 1932CST 0 0 25.00K 0.00K Thunderstorm Wind (61EG)

Wind gusts were estimated to be between 60 and 70 MPH. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Smith County Smith Center Arpt 29 1954CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Smith County Smith Center 29 2011CST 0 0 25.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts were estimated to be near 60 MPH. Severe weather was widespread across the Central Plains on this Wednesday, and North Central Kansas was not spared. An EF- 1 tornado occurred, as well as straight-line wind damage. During the afternoon, an extensive squall line formed from north- central Nebraska to western Kansas. Around 8 pm CDT, as the squall line approached North Central Kansas, the part of the line over Norton and Graham counties surged outward, resulting in an embedded bow echo. Spotters estimated winds of 60 to 70 mph, with the main swath of damage occurring over Phillips and Smith Counties. The spotter-estimated winds were confirmed by a measurement of 58 MPH at the Smith Center municipal airport. Trees and power poles were blown down in parts of Phillips county. Some of that damage was associated with a brief, non-supercell tornado south of Prairie View. Winds were estimated as high as 90 MPH. The line weakened once it past Smith Center, but it still produced winds as high as 50 mph in some locations. These numerous thunderstorms, and the associated severe weather, were a result of lee cyclogenesis over Colorado. A negatively tilted upper-level trough extended from Colorado southeastward to Texas, with the leading edge of a 100 knot upper -level jet streak just to the west. The atmosphere was extremely unstable. Temperatures nearing 80 degrees, with dewpoints approaching 70 degrees, resulted in MLCAPE of 3000-3500 J/kg. Deep layer shear was around 40 knots. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

Osborne County 13 SSW Osborne 30 1510CST 1530CST 0 0 0.00K 0.00K Hail (0.88)

Osborne County 12 SE Osborne 30 1537CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated at 60 mph were reported. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mitchell County Hunter 30 1542CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated at 60 mph were reported. Scattered thunderstorms developed early, near midday, over northwestern Kansas on this Thursday. These storms formed a common cold pool and spread eastward, mostly along Interstate 70. However, some ancillary storms formed over North Central Kansas, between 3:30 and 4 pm CDT. Some storms merged over Osborne County, and intensified. The newly consolidated storm cluster become the strongest storm in the area, between 4 and 5 pm CDT. As the storm moved from Osborne County into Mitchell County it produced mostly sub-severe wind and hail. However, there were two reports of estimated wind gusts of 60 mph, near Tipton and Hunter. A deep 991 mb surface low pressure system was over the Dakotas. These storms formed behind a cold front that moved through earlier in the day. Temperatures were in the middle 70s, with dewpoints falling through the 50s. Instability was weak with MLCAPE between 500 and 1000 J/kg. Deep layer shear was just below 30 knots. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

200 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Northeast KSZ025-105 Atchison - Johnson 02 1500CST 03 0500CST 0 0 0.00K 0.00K Winter Weather

A strong cold front with unseasonably cold temperatures moved through the area during the day on May 2, 2013. An upper level storm system then passed across extreme eastern Kansas, during the evening and overnight hours of May 2 and 3, 2013. Rain changed to snow, with amounts ranging from a trace to three inches.

Atchison County Effingham 18 2310CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated up to 60 mph. The wind caused a 24 inch diameter tree to be blown over, and several other tree branches to be damaged. An upper level disturbance moved east-northeast into northeast Kansas and northwest Missouri. A strong cap was observed across the area, so only a couple of severe thunderstorms were able to initiate, during the late evening hours of May 18, 2013. Before dissipating, as they exited into Missouri, the thunderstorms were able to generate damaging winds in Atchison County. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Leavenworth County 1 N Easton 19 1812CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated up to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Johnson County 1 S De Soto 19 1813CST 0 0 0.00K 0.00K Hail (0.75)

Atchison County 1 SE Atchison 19 1815CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated up to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Leavenworth County Leavenworth 19 1815CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several large trees were reported down, with thunderstorm wind gusts estimated up to 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Johnson County 1 ESE Gardner 19 1818CST 0 0 0.00K 0.00K Thunderstorm Wind (63MG)

Thunderstorm wind gusts were measured up to 73 mph. Note: The measured wind gust of 63 knots is equivalent to 72 mph. Miami County 1 W Osawatomie 19 1820CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several trees were reported blown over on roads near Osawatomie. Thunderstorm wind gusts were estimated up to 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Miami County 1 N Paola 19 1820CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Numerous trees were reported down in Paola. Thunderstorm wind gusts were estimated up to 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Johnson County 1 NE Olathe 19 1825CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Thunderstorm wind gusts were estimated up to 70 mph. An upper level trough of low pressure over central Kansas, initiated a large area of strong to severe thunderstorms. This area of thunderstorms moved east across extreme eastern Kansas, during the late afternoon and early evening hours of May 19, 2013. There were several reports of damaging thunderstorm winds. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

201 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Northeast Linn County 1 W Pleasanton 20 0718CST 0 0 0.00K 0.00K Hail (0.75)

Outflow boundary, left over from the the previous evenings activity, caused penny sized hail across Linn County, during the early morning hours of May 20, 2013.

Miami County 4 ENE New Lancaster 20 1405CST 0 0 0.00K 0.00K Hail (1.00)

A large upper level trough of low pressure was observed across the Central Plains. A disturbance in the broad upper level trough, combined with an outflow boundary moving north into east central Kansas, helped produce a severe thunderstorm with one inch diameter hail, across Miami County, during the afternoon hours of May 20, 2013.

Doniphan County 2 SE Troy Jct 28 2130CST 29 0330CST 0 0 0.00K 0.00K Flash Flood

County Road 155 was reported washed out, due to heavy rains.

Doniphan County 1 NE Blair 28 2130CST 29 0330CST 0 0 0.00K 0.00K Flash Flood

Highway 36 had a report of 8 inches of standing water on it.

A stalled frontal boundary over Doniphan County, combined with a very warm and humid airmass, produced thunderstorms with very heavy rains, during the evening hours of May 28, 2013. There were two reports of flash flooding in Doniphan County. Johnson County 2 E Olathe 31 0539CST 2 W (OJC)Johnson Co Exec 1139CST 0 0 0.00K 0.00K Flash Flood

Cars were reported stranded due to high water, around 151st and Lindenwood, and at 139th and Mur-Lin.

A thunderstorm with very heavy rain, caused flash flooding in Johnson County, during the early morning hours of May 31, 2013. A strong low level jet, combined with an unstable airmass, led to the thunderstorm development.

Linn County 3 WNW Mound City 31 1611CST 0 0 0.10K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated up to 60 mph. The winds blew a roof off of a small outbuilding across a street. Small tree limbs were also broken. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Linn County 3 WNW Mound City 31 1611CST 0 0 0.10K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated up to 60 mph. The wind blew a roof off a small outbuilding and across a street. Small tree limbs were also broken. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Linn County 6 ENE Blue Mound 31 1712CST 2312CST 0 0 0.00K 0.00K Flash Flood

A half foot of water was reported over Highway 31, just west of Ingram Road.

A weak boundary, combined with a warm and humid airmass, led to a severe thunderstorm, that produced damaging winds and flash flooding, across Linn County, during the late afternoon hours of May 31, 2013.

202 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Northwest KSZ001>004-013> Cheyenne - Decatur - Gove - Graham - Greeley - Logan - Norton - Rawlins - Sheridan - Sherman - 016-027>029-041> Thomas - Wallace - Wichita 042 01 0000CST 31 2359CST 0 0 0.00K 0.00K Drought

Drought conditions across the area continued from April with little change. Far western counties along the Colorado border remained in D3 (Extreme) Drought while the remainder of the area continued in D4 (Exceptional) Drought. May precipitation at cooperative observer sites ranged from 35 to 90 percent of normal.

Norton County Lenora 07 1640CST 0 0 0.00K 0.00K Hail (1.00)

Sheridan County 1 NW Hoxie 07 1658CST 0 0 0.00K 0.00K Hail (0.88)

Penny size hail was reported from this location a couple minutes prior.

Sheridan County 8 S Tasco 07 1743CST 0 0 0.00K 0.00K Hail (0.88)

Some brief gusts were also reported with the hail. No estimate was given for the strength of the gusts.

Gove County 1 S Grainfield 07 1845CST 0 0 0.00K 0.00K Hail (0.88)

Estimated the time of the report based on radar data. Gove County Quinter 07 1915CST 0 0 0.00K 0.00K Hail (1.00)

Estimated the time of the report based on radar data. Observer mentioned the hail was soft/slushy.

Gove County 3 N Quinter 07 1920CST 0 0 0.00K 0.00K Hail (0.88)

During the late afternoon and into the evening a few severe thunderstorms developed over Northwest Kansas. The largest hail produced was soft ball size which fell near St. Peter. Heavy rainfall accompanied some of the thunderstorms, with reports ranging from an inch to an inch and a half by the time the storms had left the area. No flooding or damage was reported due to the heavy rainfall. Decatur County Oberlin 10 1615CST 1620CST 0 0 0.00K 0.00K Hail (0.75)

Widely scattered showers and a few weak thunderstorms developed during the afternoon over northwest Kansas and moved south, dissipating around sunset. One thunderstorm produced hail to the size of pennies.

Cheyenne County 10 WNW St Francis 16 1445CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

In addition to the wind, copious amounts of pea to dime size hail covered the ground.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Cheyenne County 14 NW St Francis 16 1520CST 1920CST 0 0 0.00K 0.00K Flash Flood

A trained spotter measured 3 inches of rainfall near the location of the flooding report. The spotter estimated a foot of water was covering the bridge over Hackberry Creek.

203 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Northwest Sherman County Goodland 16 1545MST 1550MST 0 0 0.00K 0.00K Hail (0.75)

A severe thunderstorm moved southeast into Cheyenne county during the early afternoon. The storm slowly moved through the county dumping three inches of rainfall and producing severe wind gusts, with estimated speeds of 70 MPH. Flash flooding was reported 13 miles NW of St. Francis where the bridge over Hackberry Creek was covered with a foot of water. As the afternoon progressed the storm continued to move southeast. As it did so, more storms developed ahead of the initial storm to the southeast through most of Northwest Kansas. Penny size hail from one of the storms, and a peak wind gust of 56 MPH were both reported at Goodland.

Thomas County 1 E Mingo 18 1517CST 0 0 0.00K 0.00K Hail (1.00)

Report of quarter size hail near mile marker 61 on Interstate 70, verified by sheriff dispatch in Thomas county.

Rawlins County 1 WSW Blakeman 18 1540CST 0 0 0.00K 0.00K Hail (1.00)

Thomas County 1 NNW Halford 18 1540CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail found in a ditch at intersection of highway 24 and highway 83.

Sheridan County 1 N Selden 18 1626CST 0 0 0.00K 0.00K Hail (1.25)

Sheridan County 1 N Selden 18 1634CST 0 0 0.00K 0.00K Hail (1.00)

Decatur County 1 W Jennings 18 1637CST 0 0 0.00K 0.00K Hail (1.75)

Decatur County 1 SW Oberlin 18 1734CST 0 0 0.00K 0.00K Hail (0.75)

Hail reported east of highway 83. Thomas County 10 N Levant 19 0446CST 0 0 0.00K 0.00K Hail (1.00)

Thomas County 10 N Levant 19 0446CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Spotter estimated peak winds gusts to 60 mph. A large weather system moved out into the High Plains from the Rockies during the day. Strong atmospheric instability and wind shear resulted in several clusters of strong to severe storms during the afternoon and evening. A second round of marginally severe storms also redeveloped during the overnight hours. Most hail was quarter size but one report near Jennings was golf ball sized. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Gove County Quinter 19 1550CST 0 0 0.00K 0.00K Hail (1.75)

Gove County Quinter 19 1554CST 0 0 0.00K 0.00K Hail (0.88)

A small cluster of thunderstorms moved northeast into Gove County during the afternoon, producing hail up to the size of golf balls near Quinter.

204 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Northwest Wallace County 18 NNW Weskan 24 1649MST 0 0 0.00K 0.00K Hail (1.25)

Sherman County 12 S Kanorado 24 1652MST 0 0 0.00K 0.00K Hail (1.00)

Sherman County Kanorado 24 1718MST 0 0 0.00K 0.00K Hail (1.00)

Sherman County 3 ENE Kanorado 24 1725MST 0 0 0.00K 0.00K Hail (1.25)

Sherman County 3 ENE Kanorado 24 1725MST 1727MST 0 0 0.00K 0.00K Hail (1.75)

Hail ranged from 1.25 to 1.75 inches. Sherman County Goodland Arpt 24 1729MST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

Visibility dropped to 3 miles due to blowing dust. Note: The measured wind gust of 50 knots is equivalent to 58 mph. Sherman County 7 NNW Caruso 24 1750MST 0 0 0.00K 0.00K Hail (1.50)

Sherman County 8 N Ruleton 24 1750MST 0 0 0.00K 0.00K Hail (1.75)

Hail ranged from 1.5 to 1.75 in diameter. Sherman County 10 NNW Goodland Arpt 24 1820MST 0 0 0.00K 0.00K Hail (1.75)

Sherman County 12 N Goodland 24 1830MST 0 0 0.00K 0.00K Hail (1.00)

Sherman County 14 N Goodland Arpt 24 1849MST 0 0 0.00K 0.00K Hail (1.75)

Cheyenne County 8 SW Bird City 24 2000CST 0 0 0.00K 0.00K Hail (1.00)

Cheyenne County 5 SW Bird City 24 2005CST 0 0 0.00K 0.00K Hail (1.50)

Cheyenne County Bird City 24 2014CST 2015CST 0 0 0.00K 0.00K Hail (1.75)

Hail ranged from 1 to 1.75 in diameter. A few isolated supercells developed during the afternoon and moved northward across Northwest Kansas. The severe thunderstorms produced large hail up to 1.75 inches in diameter in/near Bird City and in rural parts of Sherman county. In addition a wind gust of 58 MPH was measured at the Goodland airport from one of the storms.

Sherman County Goodland 25 1527MST 1535MST 0 0 Hail (1.75)

Hail ranged from 1 inch to 1.75 inches in diameter. Vinyl siding had holes punched in it and vehicles were dented. An RV park reported broken trim, lights and damage to siding to vehicles. The office building had broken window and several screens, solar lights and flower pots broken out.

205 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Northwest Sherman County 9 S Ruleton 25 1608MST 0 0 0.00K 0.00K Hail (1.00)

Estimated time of report from radar. Cheyenne County 2 NW St Francis 25 1612CST 1620CST 0 0 0.00K 0.00K Hail (1.00)

Hail covering the ground ranging from dime to quarter size. Estimated time of report from radar.

Sherman County Goodland 25 1640MST 1645MST 0 0 Hail (1.50)

Hail ranged from 1.25 to 1.50 in diameter. Hail damage to vehicles and vinyl siding on houses.

Rawlins County 10 N Beardsley 25 1710CST 0 0 0.00K 0.00K Hail (1.75)

Also measured 0.55 inches of rainfall so far. Scattered thunderstorms developed over Northwest Kansas and moved northeast during the afternoon and evening. Large hail was reported at a few locations, with hail up to 1.75 reported at Goodland and north of Beardsley.

Logan County 7 SSW Oakley 29 1430CST 0 0 0.00K 0.00K Hail (1.75)

Logan County 6 S Russell Spgs 29 1435CST 1436CST 0.1 25 0 0 0.00K 0.00K Tornado (EF0)

Short-lived landspout tornado reported by emergency management.

Thomas County 1 S Colby 29 1456CST 0 0 0.00K 0.00K Hail (1.00)

Nickel to quarter sized hail reported by spotter. Sherman County 10 S Kanorado 29 1500MST 0 0 0.00K 0.00K Hail (1.75)

Wallace County 17 N Weskan 29 1507MST 0 0 0.00K 0.00K Hail (0.88)

Sherman County 8 S Ruleton 29 1520MST 0 0 0.00K 0.00K Hail (1.50)

Nickel size hail with the largest being one and a half inches in diameter.

Sherman County 6 N Ruleton 29 1522MST 0 0 30.00K 0.00K Thunderstorm Wind (70EG)

Large grain bin blown down. Time of report and wind speed estimated from Doppler radar.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Sherman County 6 N Ruleton 29 1525MST 0 0 6.00K 0.00K Thunderstorm Wind (70EG)

Six power poles down at Rd 12/Rd 70. Time of report and wind speed estimated from Doppler radar. This is the same general location as a previous report of a grain bin blown down. The downed power lines also started a grass/stubble fire.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph.

206 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Northwest Sherman County 1 WNW Caruso 29 1529MST 1530MST 0 0 0.00K 0.00K Thunderstorm Wind (54MG) Note: The measured wind gust of 54 knots is equivalent to 62 mph.

Sherman County 3 S Goodland 29 1541MST 0 0 0.00K 0.00K Hail (0.75)

Logan County 6 SW Oakley 29 1555CST 0 0 0.00K 0.00K Hail (1.75)

Time estimated from Doppler radar. Logan County 4 W Oakley 29 1610CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Spotter estimated 60 mph winds with pea to penny size hail. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Rawlins County 7 NE Mc Donald 29 1615CST 0 0 0.00K 0.00K Hail (0.88)

Gove County 4 E Grinnell 29 1643CST 1645CST 1.3 25 0 0 0.00K 0.00K Tornado (EF0)

Small rope tornado about two miles north of Interstate 70. Sheridan County 6 S Seguin 29 1650CST 0 0 0.00K 0.00K Hail (1.25)

Wichita County 1 W Leoti Arpt 29 1704CST 0 0 0.00K 0.00K Hail (0.75)

Logan County 6 N Russell Spgs 29 1705CST 0 0 3.50K 0.00K Thunderstorm Wind (65EG)

Part of a roof ripped off of a metal outbuilding. Many tree limbs down...some up to eight inches in diameter.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Wichita County 1 NE Marienthal 29 1706CST 0 0 2.00K 0.00K Thunderstorm Wind (65EG)

Trees down, garden shed blown over and a TV tower down on the east side of Marienthal.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Rawlins County 4 N Atwood 29 1747CST 0 0 0.00K 0.00K Thunderstorm Wind (57MG) Note: The measured wind gust of 57 knots is equivalent to 66 mph.

Logan County Oakley Muni Arpt 29 1755CST 0 0 0.00K 0.00K Thunderstorm Wind (60MG) Note: The measured wind gust of 60 knots is equivalent to 69 mph.

Gove County Grinnell 29 1757CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG) Note: The measured wind gust of 53 knots is equivalent to 61 mph.

207 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Northwest Norton County 7 NNW Edmond 29 1810CST 0 0 0.00K 0.00K Hail (1.25)

Hail reported at Hwy 283 and Rd U. Sheridan County 2 SSW Lucerne 29 1833CST 0 0 0.00K 0.00K Hail (1.00)

Hail ranged from nickel to quarter size. Rainfall total of 1.10 inches. Time of hail estimated from Doppler radar.

Graham County 3 SW Penokee 29 1840CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

Spotter estimated 75 to 80 mph winds. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Graham County 9 N Penokee 29 1840CST 0 0 3.00K 0.00K Thunderstorm Wind (61EG)

Chicken houses flattened and power lines down in the northwest part of the county. Time of event estimated fro Doppler radar.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Norton County 1 E Norton Muni Arpt 29 1907CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG) Note: The measured wind gust of 54 knots is equivalent to 62 mph.

Norton County 6 S Almena 29 1910CST 0 0 5.00K 0.00K Thunderstorm Wind (74EG)

Mobile home moved four feet...ripped out tie downs. Some hay bales were rolled and calving pens flipped. Damage occurred approximately 2 miles south of Hwy 36 at Road E9. Note: The estimated wind gust of 74 knots is equivalent to 85 mph. Norton County 2 SSW Almena 29 1910CST 0 0 2.50K 0.00K Thunderstorm Wind (65EG)

Roof/joist damage to a pole (horse) barn approximately 1.5 miles north of Hwy 36 at Road E9.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Norton County 1 NW Almena 29 1915CST 0 0 2.00K 0.00K Thunderstorm Wind (61EG)

Power lines down in the Almena area, reported by sheriff dispatch. Time of event estimated from Doppler radar.

During the early afternoon severe thunderstorms developed initially along a stationary front near the Colorado/Kansas border, moving to the north. The storm activity gradually spread to the east through the afternoon and evening. Large hail up to 1.75 inches in diameter, wind gusts up to 62 MPH, a couple tornadoes were reported with these storms. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Sherman County 13 N Edson 30 1400MST 1420MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Two different wind gusts moved through; the first one lasted for about 5 minutes, then about 10 minutes later another wind gust moved through with the same strength and duration. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Norton County Norton Muni Arpt 30 1832CST 1841CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)

During the afternoon and early evening severe wind gusts were reported from a couple thunderstorms over Northwest Kansas. The strongest wind gust of 59 MPH was measured at Norton airport when a thunderstorm moved over the site. Note: The measured wind gust of 51 knots is equivalent to 59 mph.

208 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southeast KSZ032-047>053- Allen - Barton - Butler - Chase - Chautauqua - Cowley - Elk - Ellsworth - Greenwood - Harper - Harvey - 067>072-082>083- Kingman - Lincoln - Marion - McPherson - Montgomery - Reno - Rice - Russell - Saline - Sedgwick - 091>095-098>099 Sumner - Wilson - Woodson 01 0000CST 31 2359CST 0 0 Drought

A year long period of prolonged dry weather, lingered drought conditions across most of Kansas during the month of May 2013. An unusually dry period from May 2012 through March, 2013, kept an extreme drought (D3) going for portions of Central and South Central Kansas. There was some improvement in the drought conditions towards the end of April 2013, as spring showers with soaking rains occurred, which led to continued improvement of the drought during the late part of April into the early part of May. Russell County 4 SW Paradise 08 1718CST 0 0 Hail (1.00)

Russell County 8 N Gorham 08 1739CST 1742CST 0.41 50 0 0 Tornado (EF0)

A nearly stationary rope tornado was reported over open country. This tornado was a merger of two funnel clouds that moved out of Ellis county. Reno County 4 S Turon 08 1807CST 0 0 Hail (0.88)

Nickel to dime size hail was reported. Kingman County 3 ENE Cunningham 08 1830CST 0 0 Hail (0.75)

Kingman County 1 E Kingman 08 1843CST 0 0 Thunderstorm Wind (52EG)

A tree was reported down in the city limits. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Sedgwick County 4 NW (ICT)Wichita Arpt 08 1847CST 0 0 Hail (0.88)

The hail was nickel to dime size. Sedgwick County 3 NW (ICT)Wichita Arpt 08 1848CST 0 0 Hail (1.75)

The hail was ping pong ball to golfball size. Sedgwick County 3 S Maize 08 1849CST 0 0 0.00K 0.00K Hail (1.75)

Sedgwick County 3 ENE Goddard 08 1850CST 0 0 Hail (1.50)

Sedgwick County 5 SSW Maize 08 1851CST 0 0 Hail (1.75)

The hail was ping pong ball to golfball size. Kingman County 1 E Kingman 08 1855CST 0 0 Hail (1.00)

Sedgwick County 2 SSW Maize 08 1855CST 0 0 Hail (1.75)

The hail was half dollar to golfball size.

209 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southeast Kingman County 1 E Kingman 08 1858CST 0 0 Hail (0.88)

Sedgwick County 1 NE (IAB) mcconnell Arpt 08 1906CST 0 0 Hail (1.25)

Mcconnell Air Force base measured half dollar size hail. Harvey County 1 E Halstead 08 1932CST 0 0 Hail (1.00)

Harvey County 1 SE Newton 08 1942CST 0 0 Hail (0.75)

Mcpherson County 3 ESE Moundridge 08 1956CST 0 0 Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Russell County 6 S Gorham 08 2003CST 0 0 Hail (1.00)

The hail was nickel to quarter size. Ellsworth County 1 N Ellsworth 08 2131CST 0 0 Thunderstorm Wind (63MG) Note: The measured wind gust of 63 knots is equivalent to 72 mph.

Ellsworth County 1 N Ellsworth 08 2141CST 0 0 Hail (1.00)

Reported via the media Television. Saline County 1 NW Mentor 08 2210CST 0 0 Thunderstorm Wind (56MG)

Scattered showers and thunderstorms developed along or just ahead of a dry line situated across Central and South Central Kansas. Supercell thunderstorms with hail up to golf ball size developed and moved across the region. A brief tornado touched down in Russell county during the early portion of the event. Note: The measured wind gust of 56 knots is equivalent to 64 mph. Russell County 8 NNE Gorham 18 1832CST 0 0 Hail (1.00)

Kingman County 1 SE Nashville 18 1945CST 0 0 Hail (0.88)

Reno County 4 SSE Plevna 18 1950CST 0 0 Thunderstorm Wind (52EG)

An estimated wind gust was reported. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Reno County Abbyville 18 1952CST 0 0 Thunderstorm Wind (52EG)

Estimated wind gust was reported. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Reno County 1 W Nickerson 18 2005CST 0 0 Thunderstorm Wind (78MG)

The wind gust was measured. Note: The measured wind gust of 78 knots is equivalent to 90 mph.

210 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southeast Reno County 1 W Nickerson 18 2005CST 0 0 Thunderstorm Wind (56EG)

An 8 inch tree branch was blown down. A minor event occurred. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Harper County 1 NW Harper 19 1332CST 0 0 0.00K 0.00K Hail (0.75)

Kingman County 1 ENE Norwich 19 1350CST 0 0 Hail (1.00)

Kingman County 1 NE Norwich 19 1353CST 0 0 Hail (1.25)

Sumner County 4 NNW Conway Spgs 19 1410CST 1412CST 0.57 50 0 0 Tornado (EF0)

Brief tornado touchdown in an open field. Sedgwick County 4 ENE Viola 19 1419CST 4 W Clearwater 1424CST 0.8 50 0 0 Tornado (EF0)

A nearly stationary rope tornado touched down in an open field.

Sedgwick County 5 WNW Clearwater 19 1424CST 0 0 Hail (1.75)

Sedgwick County 4 N Clearwater 19 1431CST 0 0 Hail (1.75)

Sedgwick County 6 N Clearwater 19 1437CST 3 S (ICT)Wichita Arpt 1448CST 4.61 300 0 0 Tornado (EF2)

A large tornado moved across rural areas in Sedgwick county causing damage to a few farmsteads. None of the major structures took a direct hit from the tornado. Most of the damage was limited to power poles, barns, silos, and farm equipment. A horse trailer was thrown for approximately 220 yards by the tornado. The Doppler on Wheels was also in the vicinity and recorded 155 mph winds at 70 meters above ground level. This would be an EF3, however, based on damage it did not appear that wind speeds at that level reached the surface. Hence the EF2 rating.

Sedgwick County 2 SSE (ICT)Wichita Arpt 19 1440CST 0 0 Thunderstorm Wind (56EG)

Several trees were uprooted. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Sedgwick County 1 NW (ICT)Wichita Arpt 19 1446CST 0 0 Hail (1.75)

Reported at the National Weather Service office. Sedgwick County (AAO) jabara Arpt 19 1457CST 0 0 Hail (1.00)

KWCH Channel 12 reported the hail.

211 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southeast Butler County 3 N Benton 19 1501CST 0 0 Hail (1.75)

Butler County 2 SSW Andover 19 1506CST 0 0 Thunderstorm Wind (52EG)

Wind report was estimated. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Sedgwick County 1 S Bellaire 19 1508CST 0 0 Hail (1.75)

Sumner County 2 SSE Perth 19 1512CST 1513CST 0.42 50 0 0 Tornado (EF0)

Brief tornado touchdown in an open field. Sumner County 1 SE Perth 19 1517CST 0 0 Hail (1.00)

Sedgwick County 2 SE Greenwich 19 1518CST 0 0 Hail (2.75)

Butler County 1 W El Dorado 19 1521CST 0 0 Thunderstorm Wind (52EG)

Pea sized hail was also reported. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Butler County 2 ENE Potwin 19 1525CST 0 0 Hail (1.00)

Butler County 6 NNE El Dorado Res 19 1539CST 0 0 Hail (1.75)

Sumner County 3 NW Hunnewell 19 1539CST 1541CST 0.47 50 0 0 Tornado (EF0)

Brief tornado touchdown in open country. Sumner County 1 SW South Haven 19 1540CST 1541CST 0.4 50 0 0 Tornado (EF0)

A rope tornado was reported by the Oklahoma Highway Patrol. Cowley County 3 SW Udall 19 1546CST 1548CST 0.71 50 0 0 Tornado (EF0)

Tornado moved over open country. Cowley County 2 ESE Udall 19 1555CST 1559CST 1.84 60 0 0 Tornado (EF1)

A tornado moved through a farmstead and caused minor damage.

212 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southeast Cowley County 4 WNW Winfield 19 1601CST 0 0 Thunderstorm Wind (56EG)

Report was estimated. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Cowley County 4 S Rock 19 1604CST 0 0 Thunderstorm Wind (52MG)

Wind speed was measured. Note: The measured wind gust of 52 knots is equivalent to 60 mph. Cowley County 1 SW Rock 19 1605CST 0 0 Hail (1.00)

Marion County 1 SW Ramona 19 1605CST 1607CST 0.46 50 0 0 0.00K 0.00K Tornado (EF0)

A brief touchdown was reported. Butler County 3 WNW Latham 19 1622CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind speed was estimated. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cowley County 1 E Arkansas City 19 1645CST 0 0 Thunderstorm Wind (61EG)

A 20 inch tree limb as down and covering most of the roadway and side street.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Cowley County 1 S Winfield Arpt 19 1649CST 0 0 Thunderstorm Wind (52EG)

Wind speed was estimated. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cowley County 2 N Arkansas City 19 1659CST 1700CST 0.19 50 0 0 Tornado (EF0)

A rope tornado briefly touched down. Greenwood County 1 E Eureka 19 1700CST 0 0 Thunderstorm Wind (56EG)

Several windows were broken due to wind driven hail. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Cowley County 1 E Arkansas City 19 1725CST 0 0 Hail (0.75)

Reno County 4 WNW Plevna 19 1725CST 0 0 Hail (1.00)

Reno County 1 W South Hutchinson 19 1733CST 0 0 Hail (1.00)

Reno County 2 SW Hutchinson 19 1735CST 0 0 Hail (1.00)

213 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southeast Cowley County 1 S Arkansas City 19 1825CST 0 0 Hail (0.75)

Cowley County 7 E Maple City 19 1923CST 0 0 Hail (2.75)

The hail was covering the road. Cowley County 9 ESE Maple City 19 1924CST 0 0 Hail (2.50)

Cowley County 8 E Maple City 19 1927CST 0 0 Hail (3.00)

Chautauqua County 1 N Cedar Vale 19 1937CST 0 0 Hail (1.75)

Fifty five mile per hour winds were also reported. Chautauqua County 3 ENE Cedar Vale 19 1937CST 0 0 Hail (1.75)

Chautauqua County 4 S Cedar Vale 19 1938CST 0 0 Hail (1.00)

Allen County 6 W Iola 19 1940CST 0 0 Hail (1.25)

Montgomery County 1 ESE Caney 19 2121CST 0 0 Thunderstorm Wind (65EG)

Power poles were knocked down. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Montgomery County 1 ESE Caney 19 2126CST 0 0 Hail (1.00)

Montgomery County 1 N Coffeyville 19 2142CST 0 0 Hail (0.88)

Montgomery County 1 N Coffeyville 19 2145CST 0 0 Hail (1.75)

Montgomery County 1 N Coffeyville 19 2145CST 0 0 Thunderstorm Wind (61EG)

Trees were blown down and several windows were blown out due to wind driven hail.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Labette County 4 NNW Valeda 19 2154CST 0 0 Thunderstorm Wind (56EG)

Several trees were blown down. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Labette County 4 N Edna 19 2201CST 0 0 Hail (1.25)

214 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southeast Labette County 1 W Oswego 19 2215CST 0 0 Thunderstorm Wind (56EG)

Large tree limbs were blown down. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Chautauqua County Chautauqua 19 2308CST 0 0 Hail (1.75)

Chautauqua County 1 E Niotaze 19 2340CST 0 0 Thunderstorm Wind (56EG)

A tree was blown down onto a garage and several branches were also downed.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Chautauqua County 1 WNW Sedan 20 0110CST 0310CST 0 0 0.00K 0.00K Flood

Minor street flooding was reported. Chautauqua County Sedan 20 0110CST 0 0 Hail (0.88)

Woodson County 8 SSW Piqua 20 0750CST 0 0 Hail (0.88)

A significant outbreak of severe weather affected much of central and southeast Kansas. A total of 10 tornadoes touched down and strong winds along with large hail pelted the city of Wichita.

Allen County 3 SSW La Harpe 20 1402CST 0 0 Hail (1.00)

Chautauqua County 1 S Hale 20 1421CST 0 0 Hail (1.50)

Montgomery County 3 ENE Elk City 20 1444CST 0 0 Hail (0.75)

Montgomery County 2 SW Dearing 20 1512CST 1514CST 0.54 50 0 0 Tornado (EF0)

Brief touchdown in open country. Montgomery County 1 N Coffeyville 20 1547CST 0 0 0.00K 0.00K Hail (1.50)

A series of storms moved across the area producing one tornado and some hail reports. Most of which were sub-severe.

Barton County 1 E Albert 28 1737CST 2 SSW Olmitz 1744CST 4.18 50 0 0 Tornado (EF0)

A nearly stationary rope tornado was reported along the Rush/Barton county line. The tornado remained in the country and caused no damage. Lincoln County 4 NE Lincoln 28 1819CST 0 0 0.00K 0.00K Hail (1.50)

215 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southeast Lincoln County 6 W Barnard 28 1836CST 1837CST 0 0 0.00K 0.00K Hail (1.75)

A couple severe thunderstorms spawned 2 weak tornadoes and produced ping-pong ball to golfball-sized hail in Barton & Lincoln counties early in the evening. Barton County 1 S Ellinwood 29 1442CST 1443CST 0 0 0.00K 0.00K Thunderstorm Wind (59MG) Note: The measured wind gust of 59 knots is equivalent to 68 mph.

Rice County 1 SW Sterling 29 1454CST 1455CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

No damage was reported. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Ellsworth County 5 NE Lorraine 29 1511CST 1512CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

No damage was reported. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Ellsworth County 1 N Ellsworth 29 1515CST 1516CST 0 0 0.00K 0.00K Thunderstorm Wind (55MG)

No damage was reported. Note: The measured wind gust of 55 knots is equivalent to 63 mph. Lincoln County 3 WSW Lincoln 29 1528CST 1529CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

No damage was reported. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Chautauqua County Chautauqua 29 1900CST 1901CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Widespread tree damage occurred from approximately 800 to 830 PM CDT.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Chautauqua County Sedan 29 1908CST 1909CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Multiple full-sized trees were reported down in Sedan and blocking roads. Size estimates were unknown. Estimated time based on radar. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Chautauqua County Chautauqua 29 1908CST 1909CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Winds estimated at 70 mph downed trees and caused unspecified property damage in Sedan and Chautauqua with power outages reported across the county. Time of report is estimated based on radar.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

216 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southeast Chautauqua County Sedan 29 1911CST 1912CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A 3-foot diameter tree was uprooted. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Greenwood County 1 E Eureka 29 1945CST 1946CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

A few trees were blown down in Eureka. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Montgomery County 1 E Independence 29 1949CST 1950CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several limbs of unknown diameters were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Greenwood County 2 NNE Eureka Arpt 29 1950CST 1951CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Winds around 60 mph were estimated at Eureka City Lake. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Greenwood County 4 N Hamilton 29 2000CST 2001CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

No damage was reported. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Neosho County 1 NE Thayer 29 2012CST 2013CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Neosho County Emergency Management relayed a citizen's report 50 to 70 mph gusts in Thayer.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cowley County 1 E Arkansas City 29 2217CST 2218CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

Branches up to 6 inches in diameter were blown down on south side of Arkansas City.

From mid-afternoon to late in the evening of the May 29th, severe thunderstorms unleashed damaging winds from Barton and Lincoln Counties in Central Kansas to Chautauqua and Montgomery Counties in Southeast Kansas. Reaching 60 to 70 mph, the winds caused significant tree and property damage. Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Montgomery County 3 W Independence 31 1518CST 1520CST 0.42 50 0 0 Tornado (EF0)

A brief touchdown was noted over rural sections just to the west of Independence.

A widespread outbreak of severe weather occurred over southeast Kansas.

217 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southwest KSZ043-062>063- Finney - Ford - Grant - Kearny - Lane - Scott - Stanton 074>075-078 02 0000CST 0530CST 0 0 0.00K 0.00K Winter Weather

Althought not heavy, an anomolous event of snow falling during the month of May in Kansas is noteworthy. A strong cold front had moved through ushering in unseasonably cold temperatures. Upper level dynamics were sufficient to produce precipitation and with the very cold May temperatures there were several bands of snow. The heaviest amount reported was 5 inches in Scott county. Measureable snow was reported in Dodge City for only the 3rd time in May since 1874.

Lane County 5 SSE Amy 07 1622CST 0 0 Hail (1.00)

Lane County 1 W Dighton Arpt 07 1633CST 0 0 Hail (1.75)

Lane County 3 W Dighton Arpt 07 1633CST 0 0 Hail (1.00)

Lane County 3 N Dighton 07 1645CST 0 0 Hail (1.75)

Ford County 4 SSW Kingsdown 07 1712CST 0 0 Hail (0.88)

Ford County 2 SSE Kingsdown 07 1723CST 0 0 Hail (0.88)

Ford County 4 SE Kingsdown 07 1725CST 0 0 Hail (1.75)

Clark County 7 NE Clark State Lake 07 1727CST 0 0 Hail (0.75)

Gray County 3 SSE Ingalls 07 1740CST 0 0 Hail (1.50)

The hail was quarter to ping pong ball size and was soft like slush balls.

Ness County 7 S Utica 07 1740CST 0 0 Hail (0.75)

Ness County 7 S Utica 07 1745CST 0 0 Hail (1.25)

Ness County 7 SSE Utica 07 1757CST 0 0 Hail (1.25)

There was also 1.05 of rainfall. Ford County 5 SSE Bucklin 07 1800CST 0 0 Hail (0.75)

Ellis County 1 NW Ellis 07 1810CST 0 0 Hail (1.00)

218 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southwest Kiowa County 8 S Mullinville 07 1825CST 0 0 Hail (0.88)

Ford County 1 NE Dodge City 07 1830CST 0 0 Hail (1.00)

Kiowa County 8 S Joy 07 1830CST 0 0 Hail (1.00)

The hail ranged in size from pea to quarter size and it covered the ground. In addition there was 2.05 inches of rain that fell in 40 minutes. Ness County 5 NNE Ness City Arpt 07 1830CST 0 0 Hail (0.75)

Ford County 1 NE Dodge City 07 1835CST 0 0 Hail (1.00)

Ness County 1 S Ness City 07 1840CST 0 0 Hail (1.00)

The hail was soft. Ness County 2 E Ness City 07 1845CST 0 0 Hail (0.75)

Ness County 10 SSE Bazine 07 1930CST 0 0 Hail (1.00)

Trego County 2 NW Collyer 07 1945CST 0 0 Hail (0.88)

Trego County 1 N Collyer 07 1950CST 0 0 Hail (0.75)

Trego County 2 ESE Collyer 07 2000CST 0 0 Hail (0.88)

Trego County 8 S Voda 07 2005CST 0 0 Hail (0.88)

Pawnee County Rozel 07 2012CST 0 0 Hail (1.25)

Trego County 4 W Wakeeney 07 2013CST 0 0 Hail (1.00)

Trego County Wakeeney 07 2023CST 0 0 Hail (1.00)

Pawnee County 3 WNW Larned 07 2040CST 0 0 Hail (1.00)

The hail was mostly dime to nickel sized. Trego County 6 NE Cedar Bluff Res 07 2049CST 0 0 Hail (1.00)

219 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southwest Stafford County 2 SSW St John 07 2105CST 0 0 Hail (0.75)

Stafford County 1 SW Dillwyn 07 2130CST 0 0 Hail (2.00)

Stafford County 1 SE Stafford 07 2155CST 0 0 Hail (0.75)

A return of moisture combined with an approaching upper system help to produce thunderstorms late in the afternoon and evening. Hamilton County 2 ENE Coolidge 08 1440MST 0 0 Thunderstorm Wind (63EG)

Winds were estimated to be 70 MPH. Note: The estimated wind gust of 63 knots is equivalent to 72 mph. Meade County 7 SSE Fowler Arpt 08 1528CST 0 0 Hail (1.00)

Clark County 2 WNW Minneola 08 1553CST 0 0 Hail (0.75)

Clark County 2 SSW Ashland Krier Arpt 08 1612CST 0 0 Hail (1.00)

Ford County 5 NW Bloom 08 1622CST 0 0 Hail (0.88)

Clark County 1 ESE Sitka 08 1630CST 0 0 Hail (2.00)

Grant County 1 E Ulysses 08 1632CST 0 0 Thunderstorm Wind (70EG)

A semi was blown off the road on the east side of Ulysses. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Clark County 3 SE Sitka 08 1636CST 0 0 Hail (1.25)

Clark County 1 ESE Sitka 08 1638CST 0 0 Hail (1.00)

Grant County 1 S Hickok 08 1640CST 0 0 Thunderstorm Wind (70MG) Note: The measured wind gust of 70 knots is equivalent to 81 mph.

Grant County 2 SSW Ulysses 08 1640CST 0 0 Thunderstorm Wind (85EG)

A garage roof was blown off by the high winds. Note: The estimated wind gust of 85 knots is equivalent to 98 mph. Comanche County 3 WSW Protection 08 1643CST 0 0 Hail (1.00)

220 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southwest Haskell County 4 WNW Satanta Muni Arpt 08 1650CST 0 0 Thunderstorm Wind (75EG)

An unknown number of power poles were blown down by high wind.

Note: The estimated wind gust of 75 knots is equivalent to 86 mph. Clark County 1 NE Sitka 08 1700CST 0 0 Hail (1.75)

The hail ranged in size from quarters to golf balls. Ford County 8 NNE Howell 08 1705CST 0 0 Hail (1.00)

Clark County 6 E Sitka 08 1707CST 0 0 Hail (1.75)

Clark County 5 E Sitka 08 1714CST 0 0 Hail (1.50)

Comanche County 5 SW Protection 08 1720CST 0 0 Hail (2.75)

Comanche County Protection 08 1728CST 0 0 Hail (1.75)

Finney County 1 N Plymell 08 1730CST 0 0 Thunderstorm Wind (65EG)

Tree limbs 4 inches in diameter were blown down by the high wind.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Ellis County 3 NNE Catharine 08 1730CST 1732CST 0.21 50 0 0 0.00K 0.00K Tornado (EF0)

An observer reported 2 tornadoes. Ellis County 3 NNE Catharine 08 1730CST 3 W Emmeram 1735CST 0.66 100 0 0 0.00K 0.00K Tornado (EF0)

An observer reported 2 tornadoes. Comanche County 3 S Protection 08 1735CST 0 0 Hail (2.00)

Finney County 5 S Garden City 08 1735CST 0 0 Hail (1.00)

Kearny County 10 SE Lakin 08 1735CST 0 0 Hail (0.88)

The hail piled up to 2 inches in depth. Comanche County 6 NW Coldwater 08 1735CST 0 0 Thunderstorm Wind (70EG)

East winds estimated to be 70 MPH destroyed a shed. Note: The estimated wind gust of 70 knots is equivalent to 81 mph.

221 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southwest Finney County 1 NE Garden City 08 1735CST 0 0 Thunderstorm Wind (61EG)

Powerl lines were blown down at the intersection of Mary Street and Farmland Road.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Finney County 5 S Garden City 08 1735CST 0 0 Thunderstorm Wind (52EG)

Winds were estimated to be 60 MPH. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Pratt County 2 WNW Preston 08 1736CST 0 0 Hail (0.88)

Comanche County 5 ESE Protection 08 1740CST 0 0 Hail (2.00)

Finney County 5 S Garden City 08 1740CST 0 0 Thunderstorm Wind (65EG)

An irrigation was blown across the highway. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Finney County 1 NE Garden City 08 1741CST 0 0 Thunderstorm Wind (52EG)

Winds were estimated to be 60 MPH. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Finney County 1 NE Garden City 08 1745CST 0 0 Thunderstorm Wind (65EG)

Winds of 60 to 70 MPH blew down two to three inch diameter tree branches at the GCCC.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Finney County 1 NE Garden City 08 1750CST 0 0 Thunderstorm Wind (78EG)

Several mobile homes near 950 N Jenny Barker Road lost roofs and had siding blown off by high winds. Power poles were blown down for a mile stretch along Highway 156. Note: The estimated wind gust of 78 knots is equivalent to 90 mph. Comanche County 2 NE Buttermilk 08 1752CST 0 0 Hail (1.50)

Comanche County 3 N Buttermilk 08 1752CST 0 0 Hail (1.50)

Scott County 4 W Scott City 08 1753CST 0 0 Thunderstorm Wind (64MG) Note: The measured wind gust of 64 knots is equivalent to 74 mph.

Finney County 1 NE (GCK)Garden City Arpt 08 1754CST 0 0 Thunderstorm Wind (56MG) Note: The measured wind gust of 56 knots is equivalent to 64 mph.

Finney County 1 NE Garden City 08 1757CST 0 0 Thunderstorm Wind (61EG)

Winds were estimated to be 70 MPH. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

222 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southwest Comanche County 3 N Buttermilk 08 1758CST 0 0 Hail (1.75)

Clark County 9 ENE Clark State Lake 08 1800CST 0 0 Hail (0.88)

Comanche County 6 S Coldwater 08 1801CST 0 0 Hail (0.75)

Pratt County 1 E Pratt 08 1813CST 0 0 Hail (0.88)

Kiowa County 13 WSW Belvidere 08 1843CST 0 0 Hail (1.00)

Ellis County 1 N Hays 08 1845CST 0 0 Hail (1.00)

Ford County 1 N (DDC)Dodge City Arpt 08 1848CST 0 0 Thunderstorm Wind (53MG) Note: The measured wind gust of 53 knots is equivalent to 61 mph.

Ellis County 1 NE Hays 08 1850CST 0 0 Hail (0.75)

Comanche County 1 N Coldwater 08 1853CST 0 0 Hail (1.00)

Ness County 8 S Laird 08 1859CST 0 0 Thunderstorm Wind (70MG) Note: The measured wind gust of 70 knots is equivalent to 81 mph.

Ford County 6 S Dodge City 08 1900CST 0 0 Hail (0.88)

Ford County 6 S Dodge City 08 1900CST 0 0 Thunderstorm Wind (56EG)

Winds were estimated to be 65 MPH. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Comanche County 6 SSE Protection 08 1948CST 0 0 Hail (1.00)

Pawnee County 3 N Hamburg 08 1955CST 0 0 5.00K Thunderstorm Wind (75EG)

Six power poles were snapped off along L Road between 150th and 160th.

Note: The estimated wind gust of 75 knots is equivalent to 86 mph. Comanche County 1 SSW Coldwater 08 2000CST 0 0 Hail (0.75)

Comanche County 6 SE Wilmore 08 2000CST 0 0 Hail (0.75)

A second day of severe weather moved across the area. An upper level wind maximum entered the high plains as deep moisture and strong heating persisted. Thunderstorms erupted during the late afternoon.

223 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southwest Ness County 3 WNW Utica 16 2025CST 0 0 Hail (0.75)

An isolated hail report was received during the evening.

Trego County 2 SSE Voda 18 1500CST 0 0 Hail (1.75)

Ness County 4 SSW Utica 18 1513CST 0 0 Hail (1.75)

Ness County 1 S Utica 18 1525CST 0 0 Hail (1.00)

Ness County 3 WSW Utica 18 1526CST 0 0 Hail (2.00)

Ness County 1 N Ransom 18 1545CST 0 0 Hail (1.75)

Ness County 3 NW Ransom 18 1605CST 0 0 Hail (1.75)

Trego County 3 WSW Cedar Bluff Res 18 1627CST 1636CST 2.92 100 0 0 0.00K 0.00K Tornado (EF0)

This tornado moved over ground that had no trees, fences or anything to damage. It dissipated as it reached the shores of the Cedar Bluff Reservoir. Trego County 5 W Cedar Bluff Res 18 1630CST 0 0 Hail (1.00)

Ness County 1 N Ransom 18 1645CST 0 0 Hail (2.00)

The hail was measured 30 minutes after it fell so no doubt it was bigger than 2 inches in diameter.

Ness County 3 ESE Ransom 18 1650CST 0 0 Hail (2.00)

Ness County 4 E Osgood 18 1700CST 0 0 Hail (1.75)

Ness County 4 NNW Brownell 18 1703CST 1705CST 0.31 100 0 0 0.00K 0.00K Tornado (EF0)

A brief multi-vortex tornado lasted just a couple of minutes.

Ellis County 6 SSW Ellis 18 1709CST 1712CST 1.71 50 0 0 Tornado (EF1)

This small tornado damaged some power poles and trees. Trego County 6 S Ogallah 18 1710CST 0 0 Hail (1.75)

224 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southwest Hodgeman County 6 SE Hanston 18 1725CST 0 0 Hail (2.00)

Ellis County 4 NW Antonino 18 1737CST 1739CST 0.56 50 0 0 0.00K 0.00K Tornado (EF0)

This tornado was brief and did not cause any damage. Pawnee County 1 WNW Sanford 18 1745CST 0 0 Hail (1.00)

Ellis County Catharine 18 1810CST 0 0 Hail (1.00)

Ellis County Catharine 18 1812CST 0 0 Hail (1.25)

Pawnee County 4 SE Burdett Rucker Arpt 18 1818CST 2 E Burdett Rozel Arpt 1847CST 7 1100 0 0 140.00K Tornado (EF4)

This tornado was well documented by storm chasers, spotters and a research team with portable doppler radar. The tornado did turn north towards the end of it's life cycle. Low end EF4 damage was done to a home along US156. The roof and walls were blown away of this well constructed house. Several large tanks were carried a long distance. There were 2 people inside but they escaped injury by taking shelter. Video shows that sub-vortices within the tornado may have actually had a little stronger wind. The Doppler on wheels that was observing the tornado had near surface measured wind speeds of 165 to 185 MPH.

Pawnee County Rozel 18 1827CST 0 0 Hail (1.00)

Comanche County 4 SSE Wilmore 18 1834CST 0 0 Hail (1.00)

Comanche County 1 W Protection 18 1840CST 0 0 Hail (1.00)

Edwards County 3 WSW Lewis 18 1845CST 0 0 Thunderstorm Wind (65EG)

A semi was blown over by high wind. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Ellis County 1 N Hays 18 1845CST 0 0 Thunderstorm Wind (65EG)

Several power poles were blown down by high wind. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Pawnee County 3 ENE Sanford 18 1849CST 1901CST 4 100 0 0 Tornado (EF1)

This tornado developed east of the original Rozel tornado and moved north and then back west as outflow pushed the surface contact before it completely roped out. Damage was done to power poles and a few trees. A damage survey was completed.

Pawnee County 5 SSE Ash Valley 18 1910CST 1913CST 2.06 100 0 0 0.00K 0.00K Tornado (EF0)

This cone tornado was the third in a series but only lasted for a short time. No damage was observed.

225 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southwest

High instability was in place as an upper level wind maxima moved out of the base of a deep upper trough in the west.

Comanche County 5 S Coldwater Stark Arpt 19 1540CST 0 0 0.00K 0.00K Hail (1.75)

Comanche County 1 SW Coldwater 19 1542CST 0 0 Hail (1.75)

Comanche County 6 S Coldwater 19 1550CST 0 0 Hail (2.50)

Comanche County 2 ESE Wilmore 19 1605CST 0 0 Hail (1.00)

There was also 70 MPH winds at this location. Pawnee County 3 ENE Zook 19 1605CST 0 0 Hail (0.88)

Comanche County 2 ESE Wilmore 19 1605CST 0 0 Thunderstorm Wind (61EG)

There was also 1 inch diameter hail with the wind. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Pratt County 3 ESE Springvale 19 1623CST 0 0 Hail (1.00)

Trego County 4 W Wakeeney 19 1625CST 0 0 Hail (1.25)

Trego County Wakeeney 19 1633CST 0 0 Hail (1.00)

Pratt County 2 SSW Pratt Muni Arpt 19 1641CST 0 0 Hail (1.75)

Pratt County 2 SSW Pratt Muni Arpt 19 1643CST 0 0 Hail (1.25)

Several house windows were broken by the hail. Pratt County 1 SE Pratt Muni Arpt 19 1645CST 0 0 Hail (1.25)

Winds to 70 MPH were also reported at this location. Pratt County 14 NNE Byers 19 1645CST 0 0 Thunderstorm Wind (61EG)

Hail that was 1.25 in diameter was also reported with the high winds.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Pratt County 1 SSE Pratt Muni Arpt 19 1654CST 0 0 Hail (1.00)

Ellis County 13 N Ellis 19 1655CST 0 0 Hail (1.00)

226 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southwest Pratt County 4 N Iuka 19 1712CST 0 0 Hail (1.00)

Stafford County 5 SSW Leesburg 19 1715CST 0 0 Hail (0.75)

There was also 60 MPH winds. Stafford County 5 SSW Leesburg 19 1715CST 0 0 Thunderstorm Wind (52EG)

Winds were estimated to be 60 MPH. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Stafford County 2 SSE Neola 19 1725CST 0 0 Hail (0.88)

Gray County 3 N Montezuma 19 1929CST 0 0 Hail (0.88)

The hail was 1 to 2 inches deep. Ford County 9 S Howell 19 1954CST 0 0 Hail (0.75)

The hail covered the road. Thunderstorms developed in the post frontal area during the afternoon. Lapse rates supported elevated thunderstorms as a weak mid level wind maximum moved across the area.

Stanton County 5 SW Manter 20 1550CST 5 ESE Saunders 1600CST 0.37 50 0 0 Tornado (EF0)

There were two land spouts reported. This one lasted the longest but there was no damage.

Stanton County 1 S Manter 20 1605CST 1610CST 0.27 50 0 0 0.00K 0.00K Tornado (EF0)

There were two land spouts reported. High based thunderstorms developed rapidly across Stanton county and two landspouts were reported.

Pratt County 1 W Pratt 23 0630CST 0 0 Hail (0.88)

An isolated marginally severe thunderstorm occurred early in the morning.

Lane County 5 S Pendennis 27 1625CST 0 0 Hail (0.88)

Ness County 1 E Arnold 27 1656CST 0 0 Hail (0.75)

There were a couple of isolated marginally severe thunderstorms during the late afternoon.

Meade County 11 SSW Meade State Park 28 1520CST 0 0 Hail (1.75)

Clark County 1 NW Englewood 28 1530CST 0 0 Thunderstorm Wind (74EG)

There was major tree damage done across all of Englewood. Note: The estimated wind gust of 74 knots is equivalent to 85 mph.

227 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southwest Clark County 1 NW Englewood 28 1530CST 0 0 Thunderstorm Wind (74EG)

Twelve inch diameter tree limbs were broken by the high wind. In addition, a few old outbuildings were destroyed and some siding on an old church was blown off. Note: The estimated wind gust of 74 knots is equivalent to 85 mph. Clark County 2 W Englewood 28 1530CST 0 0 Thunderstorm Wind (70EG)

Several old barns were damaged and a roof was torn off a lean to shed.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Clark County 4 WNW Englewood 28 1530CST 0 0 Thunderstorm Wind (61EG)

Wind gusts to 70 MPH were reported with three inch diameter tree limbs blown down.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Meade County 6 WSW Meade State Park 28 1545CST 0 0 Hail (1.00)

The hail was mostly dime sized. Comanche County 3 WNW Buttermilk 28 1558CST 0 0 Thunderstorm Wind (61EG)

There was unspecified wind damage done by the high wind. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Comanche County 9 SSE Wilmore 28 1608CST 0 0 Hail (1.00)

Meade County 5 SSW Meade State Park 28 1630CST 0 0 Hail (1.75)

The hail was several inches deep and the largest stones were the size of golf balls.

Meade County 5 WSW Meade State Park 28 1630CST 0 0 Hail (1.00)

Meade County 3 NE Meade State Park 28 1640CST 0 0 Hail (1.00)

Comanche County 14 ESE Buttermilk 28 1700CST 0 0 Hail (1.75)

Clark County 10 SSE Sitka 28 1710CST 0 0 Hail (0.75)

Clark County 7 SSE Sitka 28 1720CST 0 0 Hail (0.75)

Comanche County 3 WNW Buttermilk 28 1733CST 0 0 Hail (1.25)

Rush County 2 S Otis 28 1740CST 1745CST 0.62 75 0 0 0.00K 0.00K Tornado (EF0)

A rope tornado did not cause any damage as it moved south.

228 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southwest Comanche County 6 SE Coldwater Stark Arpt 28 1802CST 0 0 Hail (0.88)

Meade County 16 SE Meade 28 1815CST 0 0 Hail (1.00)

Ellis County 1 SW Schoenchen 28 1855CST 0 0 Hail (1.00)

Ellis County 1 N Victoria 28 1912CST 0 0 Hail (1.50)

Pawnee County 5 ESE Ash Valley 28 2045CST 0 0 Thunderstorm Wind (70EG)

Six to eight inch diameter tree limbs were blown down by the high wind.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Pawnee County 2 ESE Frizell 28 2045CST 0 0 Thunderstorm Wind (65EG)

Power lines were blown down by the high wind. An upper level short wave through moved into the plains helping to produce the necessary lift along a retreating dry line to produce thunderstorms, some of which were severe. Note: The estimated wind gust of 65 knots is equivalent to 75 mph.

Kiowa County 2 WNW Greensburg 29 1310CST 0 0 Hail (0.75)

Comanche County 7 N Protection 29 1315CST 0 0 Thunderstorm Wind (52EG)

Winds were estimated to be 60 MPH. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Kiowa County 6 S Greensburg 29 1330CST 0 0 Hail (0.75)

Kiowa County 6 S Greensburg 29 1330CST 0 0 Thunderstorm Wind (56EG)

Winds were estimated to be 60 to 70 MPH. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Scott County 6 NE Modoc 29 1354CST 0 0 Hail (1.00)

Pratt County 3 WSW Byers 29 1400CST 0 0 150.00K Thunderstorm Wind (70EG)

Three sprinkler irrigation systems were overturned by the high wind in the vicinity.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Stafford County 1 S Macksville 29 1400CST 0 0 Thunderstorm Wind (70EG)

Winds were estimated to be 80 MPH. Note: The estimated wind gust of 70 knots is equivalent to 81 mph.

229 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southwest Stafford County 1 S Macksville 29 1400CST 0 0 Thunderstorm Wind (70EG)

Winds were estimated to be 80 MPH. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Scott County 7 WSW Shallow Water 29 1430CST 0 0 Hail (1.50)

The hail varied in size from pea to ping pong ball. Scott County 5 ENE Modoc 29 1450CST 0 0 Hail (2.00)

Scott County 6 SSW Scott State Park 29 1459CST 0 0 Hail (0.88)

Kearny County Deerfield 29 1505CST 0 0 Hail (1.50)

Kearny County 12 NW Lakin White Arpt 29 1650CST 0 0 Hail (0.75)

Kearny County 5 W Lakin 29 1705CST 0 0 Hail (1.00)

Kearny County 2 WSW Lakin White Arpt 29 1725CST 0 0 Hail (1.50)

Kearny County 1 SW Lakin 29 1726CST 0 0 Hail (1.75)

Kearny County 17 SW Lakin 29 1750CST 1753CST 0.28 75 0 0 0.00K 0.00K Tornado (EF0)

A brief spin-up was observed lifting dirt but no damage was reported.

Kearny County 17 SW Lakin 29 1800CST 0 0 Hail (1.00)

Kearny County 17 SW Lakin 29 1800CST 1812CST 0.3 100 0 0 0.00K 0.00K Tornado (EF0)

Three tornadoes were observed. from 1850 - 1923 CDT. Kearny County 18 SW Lakin 29 1805CST 0 0 Hail (1.00)

Kearny County 15 SW Lakin 29 1810CST 0 0 Hail (1.75)

Scott County 1 S Manning 29 1810CST 0 0 Hail (1.00)

Very heavy rainfall was also reported.

230 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southwest Kearny County 15 SSW Lakin 29 1820CST 1823CST 0.12 75 0 0 0.00K 0.00K Tornado (EF0)

A brief spin-up was observed lifting dirt but no damage was reported.

Finney County 11 NNW Kalvesta 29 1916CST 0 0 Hail (0.75)

A strong upper level jet moved into the Texas Panhandle area putting southwest Kansas in the favorable left exit region providing enough to lift to produce thunderstorms, many that were severe. The boundary layer was moist and unstable.

Pratt County 1 W Pratt 30 0810CST 0 0 Hail (0.75)

Ellis County 3 W Antonino 30 1330CST 0 0 Hail (1.75)

Ness County 5 SSW Ransom 30 1345CST 0 0 Hail (0.75)

Ellis County 1 W Antonino 30 1400CST 0 0 Hail (0.88)

Most of the hail was pea sized. Ellis County 2 NE Antonino 30 1412CST 0 0 Hail (0.88)

Ellis County 2 N Antonino 30 1425CST 0 0 Hail (0.88)

Rush County 4 SSW Alexander 30 1517CST 0 0 Hail (1.00)

Afternoon heating along a dry line was enough to initiate thunderstorms, some of which became severe.

KENTUCKY, Central Butler County Rochester 01 0001CST 02 0600CST 0 0 0.00K 0.00K Flood

Heavy rains on April 27 brought minor flooding to the Green River at Rochester on May 1st. Just after midnight on May 1st, the river was already in flood, having exceeded its flood stage of 17 feet during the early morning hours on April 30th. It crested at 17.8 feet around noon on May 1st, falling below flood stage by 6 am on May 2nd.

Heavy rains during the evening on April 27th brought widespread 2 to 3 inch rains. The Green River at Rochester Ferry flooded several day later. Butler County 1 ENE Woodbury 06 1100CST 08 1900CST 0 0 0.00K 0.00K Flood

Heavy rain over a two day period ending on May 5th brought minor flooding to the Green River at Woodbury. Flood state at Woodbury is 33 feet. The Green River crested at 34.8 feet shortly before noon on May 7th.

Butler County Rochester 07 2355CST 09 1300CST 0 0 0.00K 0.00K Flood

231 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Central

Heavy rains from May 4th to May 5th lead to some minor flooding on the Green River at Rochester Ferry several days later. Flood stage at Rochester is 17 feet. The river crested at 17.7 feet during the early morning hours on the 5th of May.

An unusual cut-off low developed over Arkansas on Saturday, May 4th. The very slow movement of this feature across Tennessee allowed persistent rain to fall over a two day period from May 4th to May 5th. All of central Kentucky received over 2 inches of rain over this time span, with several counties such as Taylor, LaRue, Warren, and Adair, totaling over 3 inches. Minor flooding developed on the Green River several days later.

Larue County 1 E Hodgenville 19 1540EST 0 0 0.00K Hail (1.00)

A National Weather service employee reported one inch hail in Hodgenville. A spotter also reported hail at around this same time 2 miles northwest of Hodgenville. Larue County 1 E Hodgenville 19 1545EST 0 0 0.00K Hail (1.75)

A spotter reported golf-ball sized hail in Hodgenville. Garrard County Lancaster 19 1652EST 0 0 0.00K Hail (1.00)

Local broadcast media relayed a report of one inch hail in Lancaster.

Unstable conditions combined with a weak disturbance dropping southward across the Lower Ohio Valley brought scattered thunderstorms to central and eastern Kentucky during the afternoon. Two storms in particular developed weak mid-level rotation and produced severe hail. Fayette County 2 ESE Lexington 21 1600EST 0 0 0.00K Thunderstorm Wind (50EG)

The Lexington media reported several trees down across the city.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Fayette County 1 NNW East Hickman 21 1610EST 0 0 0.00K Thunderstorm Wind (52EG)

A spotter relayed a report of several trees down along Tate's Creek Road south of Lexington. Scattered power outages developed around this neighborhood as well. A weak shortwave moved across southern Kentucky on May 21st. During the early afternoon hours, a broken line of storms developed along Interstate 65 near Bowling Green. This line expanded to the north and south as it moved across central Kentucky during the mid-afternoon. By late afternoon the northern end of this line moved through Lexington and the southern Bluegrass Region. Strong instability combined with moderate winds aloft brought isolated damaging winds to central Kentucky and the Bluegrass Region. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Barren County 1 SSW Glasgow Muni Arpt 22 1357CST 0 0 0.00K Thunderstorm Wind (52EG)

Local law enforcement reported that a few trees were downed northwest of Glasgow on New Bowling Green Road.

A pre-frontal trough moved across the Lower Ohio Valley on May 22nd. Several broken lines of convection brought gusty showers to central and eastern Kentucky during the afternoon hours. One storm became severe across Barren County. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. KENTUCKY, Eastern Leslie County Smilax 06 1536EST 1736EST 0 0 0.00K 0.00K Heavy Rain

Three inches of rain fell in Smilax over a two hour period. Small streams in the area were at bank full as a result of the rainfall.

232 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Eastern Leslie County Bobs Fork 06 1715EST 2 SSW Sizerock 1900EST 0 0 0.00K 0.00K Flash Flood

A water rescue took place for a resident living along Hwy 1482.

Leslie County 1 WNW Thousandsticks 06 1715EST 1900EST 0 0 0.00K 0.00K Flash Flood

Bull Creek Road was closed due to flash flooding. Isolated strong thunderstorms produced sub-severe hail, heavy rain and some flooding for portions of eastern Kentucky during the afternoon and evening hours of May 6, 2013.

Magoffin County Mashfork 19 1455EST 0 0 0.00K 0.00K Heavy Rain

A tree and debris were brought down onto Hwy 2020 at Mashfork due to heavy rainfall.

Johnson County 2 WNW East Pt 19 1500EST 1715EST 0 0 0.00K 0.00K Flash Flood

Kentucky Route 1750 was closed due to high water. Isolated strong thunderstorms caused isolated incidences of flooding and a landslide on May 19, 2013 in Johnson and Magoffin counties. Wayne County Monticello 21 1500EST 0 0 Thunderstorm Wind (55EG)

Trees were blown down in Monticello. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Pulaski County 1 WSW Poplarville 21 1510EST 0 0 Thunderstorm Wind (52EG)

Two trees were blown down in Poplarville on Hwy 3269. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Pulaski County Nancy 21 1530EST 0 0 Thunderstorm Wind (52EG)

A large tree was blown down and onto a mobile home. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mccreary County Pine Knot 21 1532EST 0 0 Thunderstorm Wind (52EG)

Tree limbs as big as a person's arm were blown down into a yard in Pine Knot. Power was out across the area.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mccreary County Slavans 21 1535EST 0 0 Thunderstorm Wind (52EG)

Six to eight inch diameter tree limbs were blown down north of Hwy 92, one mile east of the Wayne and McCreary county line.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mccreary County 1 SSW Stearns 21 1540EST 0 0 Thunderstorm Wind (55EG)

Small trees were blown down on Hwy 742 a mile and a half southwest of Revelo.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph.

233 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Eastern Pulaski County Shopville 21 1543EST 0 0 Thunderstorm Wind (52EG)

Large tree limbs were blown down around the school in Shopville.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mccreary County Whitley City 21 1545EST 0 0 Thunderstorm Wind (55EG)

Trees were blown down and power outages were occurring countywide.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Pulaski County Dabney 21 1545EST 0 0 Thunderstorm Wind (52EG)

A tree was blown down and onto a house. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Pulaski County Science Hill 21 1545EST 0 0 Thunderstorm Wind (60EG)

Widespread tree damage with power lines down in the northwest corner of the county, including the Mount Zion and Science Hill communities. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Pulaski County Somerset 21 1545EST 0 0 Thunderstorm Wind (60EG)

Numerous trees were blown down including trees on two homes.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Pulaski County Shopville 21 1547EST 0 0 Thunderstorm Wind (52EG)

A tree was blown down on Hwy 1003. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mccreary County Whitley City 21 1548EST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported in Whitley City. Mccreary County Whitley City 21 1548EST 0 0 Thunderstorm Wind (55EG)

Trees were blown down in downtown Whitley City. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Pulaski County 5 E Somerset 21 1552EST 0 0 1.00K Thunderstorm Wind (40EG)

Wind gusts of 45 to 50 mph were reported by a volunteer weather observer in Colo.

Note: The estimated wind gust of 40 knots is equivalent to 46 mph. Mccreary County Whitley City 21 1553EST 0 0 Thunderstorm Wind (55EG)

Trees and power lines were blown down all around the county.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph.

234 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Eastern Rockcastle County Mt Vernon 21 1600EST 0 0 Thunderstorm Wind (50EG)

Trees were blown down in Mount Vernon on Richmond Street and also at the junction of 150 and 25.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Whitley County Williamsburg 21 1600EST 0 0 Thunderstorm Wind (50EG)

A few trees were blown down in the Oak Grove area of Williamsburg.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Laurel County Keavy 21 1615EST 0 0 Thunderstorm Wind (50EG)

A large tree was blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Whitley County Woodbine 21 1615EST 0 0 Thunderstorm Wind (50EG)

Tree were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Whitley County Corbin 21 1615EST 0 0 Thunderstorm Wind (50EG)

Trees were blown down in Corbin. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Jackson County Sandgap 21 1620EST 0 0 Thunderstorm Wind (50EG)

A tree was blown down and onto a house. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Owsley County 2 SW Booneville 21 1624EST 0 0 Thunderstorm Wind (50EG)

A tree was blown down and onto Hwy 1938. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Jackson County Annville 21 1625EST 0 0 Thunderstorm Wind (50EG)

A tree was blown down and onto Hwy 3630 near Annville. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Jackson County Mc Kee 21 1625EST 0 0 Thunderstorm Wind (50EG)

Trees were blown down on Brushy Ridge Rd in McKee. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Owsley County Booneville 21 1626EST 0 0 Thunderstorm Wind (50EG)

A tree was blown down in someone's yard on old Hwy 11 near Booneville.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Bell County Fourmile 21 1630EST 0 0 Thunderstorm Wind (50EG)

Trees were blown down and onto power lines near Lone Jack School.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

235 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Eastern Clay County 5 SSE Deer Lick 21 1630EST 0 0 Thunderstorm Wind (50EG)

A power line was blown down on Hwy 80 East in Bush. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Clay County 2 SW Burning Spgs 21 1630EST 0 0 Thunderstorm Wind (55EG)

Multiple trees were blown down with evidence of hail damage also seen on Upper Rader Road. Several trees were uprooted and the top was blown out of a tree on Urban Creek Road. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Owsley County 2 SE Lerose 21 1638EST 0 0 Thunderstorm Wind (50EG)

Trees were blown down on Hwy 30 in the Split Poplar community.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Owsley County Arnett 21 1640EST 0 0 Thunderstorm Wind (50EG)

A large tree was blown down on Hwy 28. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Owsley County Travellers Rest 21 1645EST 0 0 Thunderstorm Wind (50EG)

A tree was blown down on Hwy 30. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Harlan County Harlan 21 1705EST 0 0 Thunderstorm Wind (50EG)

A tree was blown down on US Hwy 421. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Harlan County Baxter 21 1705EST 0 0 Thunderstorm Wind (55EG)

Trees were blown down and power outages were occurring on US Hwy 421.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Menifee County Frenchburg 21 1705EST 0 0 Thunderstorm Wind (60EG)

Numerous trees were blown down in Frenchburg and around the county.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Breathitt County 3 NE Jackson 21 1708EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

A tree was blown down 1 mile north of Hwy 30 on Airport Rd. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Harlan County Evarts 21 1712EST 0 0 Thunderstorm Wind (50EG)

Two trees were blown down on KY 38. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Perry County 2 NW Dice 21 1715EST 0 0 Thunderstorm Wind (55EG)

Roof damage occurred to homes near the airport. Note: The estimated wind gust of 55 knots is equivalent to 63 mph.

236 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Eastern Perry County 2 NW Hazard 21 1715EST 0 0 Thunderstorm Wind (60EG)

A three foot diameter beech tree was twisted and its top was ripped off. The top was deposited 180 yards away. This occurred near the intersection of Hwy's 15 and 80. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Perry County Ary 21 1718EST 0 0 Thunderstorm Wind (50EG)

A tree was blown down and across Hwy 476. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Perry County 3 N Cornettsville 21 1718EST 0 0 Thunderstorm Wind (50EG)

Trees were blown down, including one that fell on a house on Big Branch in the Fusonia/Kodak area.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Morgan County Adele 21 1722EST 0 0 Thunderstorm Wind (50EG)

Two trees were blown down near the intersection of Hwy's 119 and 134.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Breathitt County 1 N Camp Lewis 21 1728EST 0 0 Thunderstorm Wind (50EG)

Large tree limbs were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Harlan County Lynch 21 1730EST 0 0 Thunderstorm Wind (50EG)

Two trees were blown down on Hwy 160. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Magoffin County Foraker 21 1733EST 0 0 Thunderstorm Wind (50EG)

A tree was blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Floyd County 1 SE Brainard 21 1746EST 0 0 Thunderstorm Wind (50EG)

Two trees were blown down between mile markers 2 and 4 along KY Hwy 114.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Elliott County 1 NW Little Sandy 21 1755EST 0 0 Thunderstorm Wind (50EG)

A tree was blown down on Hwy 173. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Johnson County Hagerhill 21 1800EST 0 0 Thunderstorm Wind (55EG)

Multiple trees were blown down in the Hagerhill and Van Lear communities.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph.

237 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Eastern Pike County 1 W Meta 21 1814EST 0 0 Thunderstorm Wind (50EG)

A tree was blown down and across Runyon Rd. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Pike County 3 NW Sidney 21 1814EST 0 0 Thunderstorm Wind (50EG)

A tree was blown down on Rockhouse Fork. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Martin County Inez 21 1820EST 0 0 Thunderstorm Wind (50EG)

A tree and a power line were blown down on Turkey Creek. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Martin County Lovely 21 1826EST 0 0 Thunderstorm Wind (50EG)

Trees were blown down on Riverfront Rd. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Pike County Belfry 21 1826EST 0 0 Thunderstorm Wind (50EG)

A tree was blown down and was blocking Hwy 319. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Martin County Warfield 21 1828EST 0 0 Thunderstorm Wind (50EG)

Trees were blown down on Hwy 292. During the late afternoon and evening hours on May 21, widespread strong to severe thunderstorms erupted across eastern Kentucky. The storms formed in a warm and moist air mass ahead of an approaching cold front that was moving out of the central and southern Plains. The storms produced damaging wind gusts along outflow boundaries that moved along the surface out ahead of the storms themselves. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

KENTUCKY, Northeast Lawrence County 1 SE Patrick 21 1830EST Gallup 1840EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

A few trees fell along Routes 1690 and 2037. A long lived convective complex originated on the 20th across the southern Plains. The complex moved across Tennessee and Kentucky during the day on the 21st, reaching northeast Kentucky by early evening. Wind gusts of 30 to 50 mph were common on the leading edge of the convection. A few spots received stronger wind gusts with tree damage. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

KENTUCKY, Northern Mason County 1 ENE Washington 21 1730EST 1734EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Due to thunderstorm winds, a small out-building was blown down. Also, two trees were downed, one across Highway 8.

A line of thunderstorms developed and moved eastward across Kentucky during the afternoon and early evening. Some of these storms were capable of producing damaging winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

238 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Southwest Muhlenberg County Paradise 01 0000CST 14 2000CST 0 0 0.00K 0.00K Flood

Minor flooding continued from late April into May along the Green River at Paradise. Some low-lying fields and woodlands near the river were inundated. Mccracken County 1 NNE Cecil 03 1500CST 1 E Rowlandtown 15 1700CST 0 0 0.00K 0.00K Flood

Minor flooding occurred along the Ohio River. Low-lying fields and woodlands near the river were inundated. Portions of a riverside park in downtown Paducah were flooded. Heavy rainfall during the first week of May caused a couple of rivers to rise above flood stage.

Ballard County Lovelaceville 21 0210CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Two large trees were blown down near U.S. Highway 62. Utility companies cleared the debris, which affected power lines.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mccracken County Cammelia 21 0219CST 0 0 8.00K 0.00K Thunderstorm Wind (52EG)

Five to six trees were snapped and uprooted near the intersection of U.S. Highway 62 and Highway 724, which is a few miles south of Barkley Regional Airport. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Christian County Pembroke 21 0355CST 0 0 70.00K 0.00K Thunderstorm Wind (52EG)

A 1000-pound factory awning was blown off, carried by the wind approximately 70 yards, and landed on top of several vehicles. A few of the vehicles were destroyed. A squall line with embedded small bow echoes moved eastward from southeast Missouri across western Kentucky. A few damaging wind events occurred in association with the bow echoes. The storms occurred in a region of strong southerly low- level wind flow ahead of a cold front crossing Missouri. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

Crittenden County Marion 21 1809CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Law enforcement officials reported a tree blown down with an estimated wind gust near 60 mph.

A bowing line of thunderstorms moved rapidly east across western Kentucky, producing strong winds and isolated wind damage. The storms occurred in a moist southwest wind flow ahead of a cold front over Missouri. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Daviess County Owensboro 30 1716CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)

Large tree branches were blown down. A wind gust to 53 mph was measured at the Owensboro airport.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Daviess County 2 W Masonville 30 1725CST 0 0 0.00K 0.00K Funnel Cloud

A funnel cloud was identified and photographed by a trained spotter.

239 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Southwest

Photo of funnel cloud taken by Chris Conley in Daviess County. Mccracken County Melber 30 1835CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Tree limbs and a whole tree were blown down by winds estimated near 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mccracken County 2 W Massac 30 1840CST 1 NW Cecil 1847CST 0 0 80.00K 0.00K Thunderstorm Wind (61EG)

A microburst with winds near 70 mph began near Lone Oak and extended northward to the western edge of Paducah, ending at exit 3 on Interstate 24. The most significant tree damage occurred in the vicinity of U.S. Highway 62, where dozens of trees were uprooted or snapped. Other large trees were uprooted between U.S. 60 and U.S. 62 near the western city limits of Paducah. Near the end of the damage path, a billboard was blown down at exit 3 on Interstate 24. Also at exit 3, the canopy of a former gas station was extensively damaged. The damage path width averaged 500 yards, but was up to 1000 yards wide near U.S. 62. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Mccracken County 3 N Paducah 30 1845CST 0 0 0.00K 0.00K Hail (0.75)

Mccracken County 2 SE Maxon 30 1849CST 0 0 0.00K 0.00K Hail (1.00)

Quarter-size hail occurred on the western edge of Paducah. Fulton County Fulton 30 1915CST 0 0 20.00K 0.00K Thunderstorm Wind (52EG)

Trees and power lines were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Calloway County 2 WSW Lynn Grove 30 1930CST 1 SW Murray 1934CST 0 0 18.00K 0.00K Thunderstorm Wind (52EG)

A tree was on a power line west of U.S. Highway 641. Another tree was blown down across Kentucky 94 west of Murray, causing an accident with injuries. A few other trees were blown across roadways.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

240 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Southwest Calloway County 1 W Murray 30 1936CST Almo 1941CST 0 0 0.00K 0.00K Hail (0.88)

Nickel-size hail was reported in Almo, Dexter, and the west side of Murray.

Clusters of thunderstorms moved north across western Kentucky. The storms occurred in a southwesterly flow of moist and moderately unstable air. The storms were enhanced by a 500 mb shortwave extending from the Ozarks to the Lower Mississippi Valley. A few of the storms produced large hail and strong winds.

LOUISIANA, Northeast Morehouse Parish 1 SW Bastrop 21 2010CST 0 0 20.00K 0.00K Thunderstorm Wind (50EG)

Multiple trees and power lines blown down across the southern part of the parish.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Franklin Parish 1 S Baskin 21 2106CST 0 0 30.00K 0.00K Thunderstorm Wind (60EG)

Trees were blown down on Dobber Glass Road, Lawson Road, and Dear Creek Road. Storm spotters estimated winds up to 70 mph occurred, along with some penny size hail. Four roads near Winnsboro had trees blocking them.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. East Carroll Parish 3 NNW Transylvania Arpt 21 2110CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Four power lines were blown down near 6289 Highway 580. A tree was also blown down on Highway 134.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Madison Parish 1 S Barnes 21 2125CST 0 0 6.00K 0.00K Thunderstorm Wind (50EG)

A few trees were blown down on Highway 602 near Tallulah, as well as near Thomastown. A power line was blown down in Tallulah as well. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Catahoula Parish 5 E Maitland 21 2130CST 0 0 4.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down across a couple of roads in the area. A line of severe storms associated with an advancing cold front moved across the region. A few storms caused wind damage in the form of blown down trees and power lines. Some of these trees fell on structures. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Concordia Parish 3 ESE Monterey 23 1944CST 0 0 10.00K 0.00K Hail (1.75)

Golf ball size hail fell east of Monterey. A lingering frontal boundary and a weak disturbance triggered a lone severe storm.

LOUISIANA, Northwest Caddo Parish 1 NNE Greenwood 16 1339CST 1 ENE Metcalf 1350CST 5.23 1400 0 1 250.00K 0.00K Tornado (EF1)

241 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

LOUISIANA, Northwest

This tornado touched down just north of I-20 in Greenwood near the Old Kelly Truck Stop. It crossed I-20 near the Highway 80 intersection on the east side of Greenwood. The tornado uprooted and snapped trees as it moved southeast toward the old General Motors Plant. Several residential and mobile home communities had structural damage from fallen trees in the path. One injury occurred at the Blue Ridge Mobile Home Community near Buncome Road and Bert Kouns Industrial Loop. The tornado lifted about 0.4 miles southeast of the intersection of Bert Kouns and Buncombe Road.

Caddo Parish 1 S Jewella 16 1355CST 0 0 0.00K 0.00K Hail (1.25)

Hail covered the ground. Caddo Parish 1 S Jewella 16 1355CST 0 0 0.20K 0.00K Thunderstorm Wind (61EG)

Several trees downed with one that fell across a shed. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Caddo Parish 1 W Reisor 16 1400CST 0 0 0.00K 0.00K Hail (0.88)

Caddo Parish 1 W Reisor 16 1400CST 0 0 400.00K 0.00K Thunderstorm Wind (61EG)

Several trees downed on the southwest side of town. Some trees fell on homes in the New Castle subdivision and in the Chasewood Subdivision. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Caddo Parish 1 S Jewella 16 1402CST 0 0 0.00K 0.00K Hail (0.88)

Caddo Parish 1 W Keithville 16 1404CST 0 0 0.00K 0.00K Hail (1.25)

Caddo Parish 1 S Jewella 16 1405CST 0 0 0.00K 0.00K Hail (1.00)

Hail covered the ground. Caddo Parish 1 NE Keithville 16 1405CST 1413CST 0 0 500.00K 0.00K Thunderstorm Wind (91EG)

A supercell thunderstorm produced a downburst that caused significant straight-line wind damage in southern Caddo and northern De Soto Parishes. NWS Radar estimated that some of these winds could have reached 105 mph. The damage path started near Barron Road in southern Caddo Parish and ended near Lake Road just east of I-49 in De Soto Parish. Other sporadic wind damage was observed in south Shreveport and other parishes across northwest Louisiana. However, this area was the most significant. There were numerous trees on homes in this area however, there were no reports of any injuries. Shelters were set up near this region to house victims of the storm damage.

Note: The estimated wind gust of 91 knots is equivalent to 105 mph. Caddo Parish 1 ENE Keithville 16 1405CST 2 SE Keithville Arpt 1406CST 0.78 250 0 0 0.00K 0.00K Tornado (EF0)

The tornado first touched down in extreme southern Caddo Parish near Keithville, Kingston Road just northwest of Cypress Bayou which is the defining parish boundary between Caddo and De Soto Parishes. Several trees were snapped and uprooted while the tornado was in Caddo Parish. The tornado then crossed over the Cypress Bayou and moved into extreme northern De Soto Parish.

242 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

LOUISIANA, Northwest De Soto Parish 4 NNE Stonewall 16 1406CST 1409CST 1.7 350 0 0 0.00K 0.00K Tornado (EF0)

This tornado is a continuation of the tornado that first touched down in extreme southern Caddo Parish near Keithville Kingston Road. The tornado then moved into extreme northern De Soto Parish where it continued to snap and or down trees. The tornado lifted near Russel Road just west of Linwood Avenue. The tornado was near a broad area of straight line winds caused by a downburst in northern De Soto Parish.

Caddo Parish 1 S Jewella 16 1407CST 0 0 0.00K 0.00K Funnel Cloud

A funnel cloud was spotted at the 9000 block of Youree Drive moving southeast.

Caddo Parish 1 S Jewella 16 1408CST 0 0 0.00K 0.00K Hail (1.75)

Caddo Parish 1 S Jewella 16 1408CST 0 0 40.00K 0.00K Thunderstorm Wind (61EG)

A house had its roof peeled back and the porch was knocked off.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Caddo Parish 1 S Jewella 16 1415CST 0 0 0.00K 0.00K Hail (1.00)

Caddo Parish Shreveport 16 1415CST 0 0 0.00K 0.00K Hail (1.50)

Caddo Parish 1 S Jewella 16 1415CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Trees were downed in town. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Red River Parish 1 S East Pt 16 1454CST 0 0 0.00K 0.00K Hail (1.00)

Hail was reported at the intersection of Hwy. 71 and Hwy. 4.

Red River Parish 1 N Martin 16 1520CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Several trees downed in Martin, Louisiana. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Natchitoches Parish 1 W Black Lake 16 1545CST 0 0 0.00K 0.00K Hail (1.50)

An upper level low pressure system was moving slowly through Eastern Oklahoma into Western Arkansas during the afternoon hours of May 16th. A lone supercell thunderstorm across North Central Texas developed during the late morning hours of May 16th. This storm developed in a strongly sheared environment which allowed the storm to sustain itself. The storm moved south and east towards a strong instability axis which was oriented across Northeast Texas into Northwest Louisiana. With strong heating, strong instability developed and the supercell thunderstorm intensified as it moved south and east. The storm produced several tornado tracks, some of which occurred in Harrison County Texas and other into Southwest Caddo Parish and Northern Desoto Parish. The storm was a prolific hail and wind producer as well with wind gusts near 100 mph south of Shreveport, Louisiana with large fields of hail which turned numerous acres of land completely white.

Bossier Parish 1 S Plain Dealing 21 1748CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Several trees were downed in Plain Dealing, Louisiana. Note: The estimated wind gust of 54 knots is equivalent to 62 mph.

243 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

LOUISIANA, Northwest Caddo Parish 1 SE La Rosen 21 1815CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees were downed on Crabapple Drive in south Shreveport. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. De Soto Parish 1 E Grand Cane 21 1820CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees were downed in Grand Cane, Louisiana. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Webster Parish 1 S Cotton Vly 21 1820CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees were downed across the entire parish. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Bossier Parish 1 N Caplis 21 1825CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees were downed in Taylortown, Louisiana along Hwy. 71. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Webster Parish Minden 21 1830CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

A utility pole was snapped in half in the Beaver Creek Subdivision.

Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Caddo Parish 1 S Jewella 21 1834CST 0 0 25.00K 0.00K Thunderstorm Wind (53EG)

A tree was on a home in Green Terrace in Southwest Shreveport.

Note: The estimated wind gust of 53 knots is equivalent to 61 mph. Caddo Parish 1 S Jewella 21 1855CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Another tree was reported to be downed near Crabapple in Southern Hills portion of south Shreveport.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Sabine Parish Converse 21 1911CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)

Trees were downed in Converse, Louisiana. Note: The estimated wind gust of 53 knots is equivalent to 61 mph. Bienville Parish 1 S Gibsland 21 1915CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees were downed in Gibsland, Louisiana. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Natchitoches Parish 2 E Oshkosh 21 1915CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees were downed northeast of Campti, Louisiana. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Red River Parish 1 E Coushatta 21 1915CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Several trees were downed throughout the entire parish. Note: The estimated wind gust of 54 knots is equivalent to 62 mph.

244 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

LOUISIANA, Northwest Sabine Parish 1 WNW Belmont 21 1920CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

A utility pole was snapped northeast of Zwolle, Louisiana. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Claiborne Parish 1 W Athens 21 1930CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees were downed in Athens, Louisiana. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Lincoln Parish Simsboro 21 1930CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Trees were downed throughout the entire parish. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Winn Parish 1 E Dodson 21 1945CST 0 0 20.00K 0.00K Thunderstorm Wind (55EG)

A tree was downed on a home in Dodson, Louisiana. There were no reports of injuries.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Jackson Parish 1 SE Jonesboro 21 2000CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Numerous trees were downed throughout the entire parish. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Winn Parish 1 W Winnfield 21 2005CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Numerous trees were downed throughout the entire parish. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Ouachita Parish 1 SW Lakeshore 21 2015CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees and powerlines were downed throughout the entire parish.

Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Caldwell Parish Columbia 21 2043CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)

Trees were downed throughout the entire parish. Note: The estimated wind gust of 53 knots is equivalent to 61 mph. Grant Parish 1 E Pollock 21 2110CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

A large tree was downed in Pollock, Louisiana. A strong upper level trough across the southern Great Basin ejected out into the Southern Plains during the day on May 21st. Strong convection developed during peak heating across the region and this convection was aided by moderate to strong instability, excessive deep layer shear and mid level lapse rates. Add a frontal boundary to the mix and severe thunderstorms became widespread, some of which produced large hail and damaging thunderstorm wind gusts. Note: The estimated wind gust of 55 knots is equivalent to 63 mph.

245 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

LOUISIANA, Southeast Jefferson Parish Kenner 01 1150CST 2 N Bridgedale 1300CST 0 0 10.00K 0.00K Flash Flood

Numerous streets were reported flooded, especially around Audubon Subdivision.

Jefferson Parish 2 NNE (MSY)Moisant Fld New 01 1155CST 1300CST 0 0 10.00K 0.00K Flash Flood

The intersection of West Esplanade and East Loyola was impassible due to flash flooding. One vehicle was stalled due to water. Orleans Parish New Orleans 02 1524CST 1630CST 0 0 50.00K 0.00K Flash Flood

Local broadcast media reported several streets in New Orleans were impassable due to flash flooding. Water was up to the doors of cars in some locations. A slow moving upper low over southern Louisiana fueled the development of numerous thunderstorms across the area. Several reports of flooding were received in the New Orleans area.

West Baton Rouge Parish Addis 10 0350CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported in Addis. East Baton Rouge Parish 2 NW Westminster 10 0408CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported in the Westminster area. East Baton Rouge Parish 1 W Magnolia Woods 10 0430CST 0 0 1.30M 0.00K Lightning

The Louisiana Association of Realtors building caught fire due to a lightning strike.

Ascension Parish St Amant 10 0438CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

A large tree was snapped in the St. Amant area. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. St. John The Baptist Parish 1 W Frenier 10 0539CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A tree was was blown down, blocking Highway 51 north of Interstate 10. Event time was based on radar.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Lafourche Parish 3 WSW Kraemer 10 0555CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

A large tree was reported blown down on Choctaw Road. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Terrebonne Parish Theriot 10 0601CST 0 0 0.00K 0.00K Hail (1.00)

Terrebonne Parish 3 NW (HUM)Houma Arpt 10 0601CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

Large tree limbs were downed by strong winds, blocking the roadway in the Broadmoor subdivision.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

246 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

LOUISIANA, Southeast Orleans Parish 2 NE Greens Ditch 10 0634CST 0635CST 0 0 60.00K 0.00K Thunderstorm Wind (70EG)

A steel girder stick frame camp with vinyl siding and metal roof on a 15 foot pier was struck by thunderstorm wind gusts. Nearly the entire structure was blown to the east with roofing material and furniture blown 30 to 50 yards down wind. Two portions of siding were blown across Chef Menteur Highway about 10 yards east of the roadway. Two additional camp structures across the highway also had minor damage. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Lafourche Parish Lockport 10 1500CST 0 0 15.00K 0.00K Thunderstorm Wind (52EG)

A large tree was blown down onto a mobile home. Several waves of low pressure moved across southern Louisiana during the 10th and 11th. Reports of wind damage were received across southeast Louisiana. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. East Feliciana Parish Jackson 22 0435CST 1 SSW Jackson Arpt 0600CST 0 0 0.00K 0.00K Flash Flood

Flooding was reported on Highway 68 and Highway 19 just northeast of Jackson.

Assumption Parish 1 NW Bayou Corner 22 0715CST 0 0 50.00K 0.00K Lightning

Lightning started a fire in an empty house near Bayou Corne. The home was empty due to sink hole evacuations. Event time estimated based on radar. Assumption Parish 1 WNW Boeuf 22 1202CST 0 0 50.00K 0.00K Thunderstorm Wind (70EG)

An industrial service company just north northeast of Amelia had considerable roof damage to a couple of metal buildings. One building lost much of it's roof. Three power poles were also snapped.

An outflow boundary from overnight thunderstorms provided a focus for the development of additional thunderstorms during the morning and early afternoon hours. Note: The estimated wind gust of 70 knots is equivalent to 81 mph.

LOUISIANA, Southwest Iberia Parish New Iberia 01 2100CST 2153CST 0 0 0.00K 0.00K Heavy Rain

The New Iberia ASOS received 2.07 inches of rain in 53 minutes. Media in the area also reported street flooding around the city. Heavy rain and flooding affected the New Iberia area.

Beauregard Parish 5 SE Merryville 09 2235CST 0 0 0.00K 0.00K Hail (1.00)

Hail of one inch in diameter was reported 5 mile north of Singer.

Beauregard Parish 4 NW Singer 09 2235CST 2238CST 1.04 20 0 0 10.00K 0.00K Tornado (EF0)

An EF0 tornado touched down along Highway 110 west of Singer, blowing down numerous pine trees, some of which fell on power lines. Calcasieu Parish Vinton 09 2315CST 0 0 0.00K 0.00K Hail (0.88)

Vinton Police department reported nickel-sized hail in town.

247 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

LOUISIANA, Southwest Calcasieu Parish 2 NNW Vincent 09 2330CST 0 0 0.00K 0.00K Hail (1.00)

Calcasieu Parish 911 reported nickel to quarter sized hail in Carlyss.

Calcasieu Parish Maplewood 09 2350CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

An off duty NWS employee reported a tree down on Eveland Avenue in Sulphur.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Calcasieu Parish 1 ESE (LCH)Lk Charles Muni 10 0000CST 0005CST 0 0 100.00K 0.00K Thunderstorm Wind (65EG)

A microburst occurred just east of the Lake Charles Regional Airport. Winds were estimated between 50 and 75 mph across a four mile wide and two mile long area between Gauthier Road and Tank Farm Road. At least four mobile homes had shingles pulled off of roofs, several outbuildings were flipped, and between 50 to 100 mobile homes had skirting damaged or blown off. Numerous power lines and trees were also downed. Damage was blown northwest to southeast.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Calcasieu Parish 2 NNW (LCH)Lk Charles Muni10 0005CST 0 0 20.00K 0.00K Hail (1.25)

Numerous reports of quarter to half dollar-sized hail were received from across the south side of Lake Charles. One NWS employee had to replace his roof and also had vehicles dented.

Cameron Parish 4 SSE Grand Lake 10 0039CST 4 WNW Sweet Lake 0042CST 0 0 80.00K 0.00K Thunderstorm Wind (61EG)

Straight line wind damage occurred from just north of the intersection of Big Pasture Road and Highway 384 to Donna Road in Big Lake. One metal roof was removed and numerous tree branches were broken along the path. Power lines were downed in the area and fences were also blown over. Additional wind damage occurred at Grand Lake High School to the east where fences around the baseball field were bent. Winds were estimated at 60 to 70 mph.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

Straight line winds removed the metal roof over a mobile home near the intersection of Big Pasture Road and Highway 384. Picture taken by Andrew Tingler during the storm survey.

248 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

LOUISIANA, Southwest Cameron Parish 3 N Sweet Lake 10 0045CST 0046CST 0.89 75 0 0 25.00K 0.00K Tornado (EF0)

The tornado touched down just north of Highway 384 near Lucy Lane and snapped numerous branches and downed several small trees along the path. Minor damage occurred to the roofing of one home along Highway 384 and to a few homes along Clydes and Clyde Olivers Lanes. The tornado ended just north of T Johns Road and east of Tans Road.

Roofing material and siding was blown from an abandoned trailer home onto highway 384. The home is east of Lucy lane on the north side of HWY 384. Picture taken by Andrew Tingler during the storm survey. Cameron Parish 12 NW Grand Lake Lake 10 1000CST 1 0 0.00K 0.00K Lightning

Two men were fishing in the Lacassine Wildlife Refuge when a storm approached from the east. The two tried to out run the storm in a boat but one was struck by lightning. The struck man died a few days later. M41BO

Multiple short waves moved across the region while a north flow remained in place. This caused multiple rounds of severe weather with hail, high winds, and a tornado in Louisiana from late during the 9th into the 10th. M41BO

Vermilion Parish 2 NNW West Erath 17 1015CST 0 0 50.00K 0.00K Lightning

Lightning struck an oil storage tank on Albert Road near Erath seting the tank on fire. The fire burned through the afternoon.

Lightning struck an oil tank near Erath.

Evangeline Parish 3 WSW Grand Prarie 22 0300CST 0700CST 0 0 0.00K 0.00K Heavy Rain

Heavy rain fell during the 21st and 22nd with a 24 hour total of rainfall in the range of 5 to 8 inches from Opelousas, Eunice, and Ville Platte. The high amount of rainfall caused Highway 167 to be flooded and closed for several hours during the morning of the 22nd a few miles southeast of Ville Platte.

St. Mary Parish 1 NW Ramos 22 0940CST 0 0 50.00K 0.00K Lightning

Lightning struck the Bayou Ramos power substation near Morgan City that and combined with other issues to cut power to the city through the afternoon. The lightning caused a fault in one of the lines at the substation cutting power from the east side of town. The generators from the other side of the city kicked in, however a natural gas leak feeding the generators was discovered and had to be shut down.

249 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

LOUISIANA, Southwest Vermilion Parish 7 NNW White Lake 22 1000CST 1001CST 0 0 0.00K 0.00K Funnel Cloud

The media and public reported a funnel cloud over White Lake. Pictures were taken from near Gueydan.

St. Mary Parish 2 NNE Morgan City 22 1140CST 1145CST 0 0 250.00K 0.00K Thunderstorm Wind (89MG)

An isolated strong thunderstorm moved east across the lower sections of the Atchafalaya Swamp including Flat Lake. As the storm neared the northern sections of Morgan City and Lake End Park the storm intensified farther producing winds around 70 knots. The storm downed many trees and power lines and flipped 3 recreational vehicles at Lake End Park on their side. One business had its metal roof partially blown off and several structures had trees fall on them and awnings removed. The roof of an elementary school in the area suffered minor damage and began to leak. A wind gust of 100 knots was recorded at the heliport in Amelia. Note this anemometer was at 145 ft AGL. Another nearby anemometer on the heliport failed at 44 MPH.

Note: The measured wind gust of 89 knots is equivalent to 102 mph. St. Landry Parish 1 NW Eunice 23 0430CST 0 0 5.00K 0.00K Lightning

Lightning hit a power pole early in the morning of the 23rd near a Eunice business. The surge caused mostly cosmetic damage to the structure, however the surge burned the circuit breaker box and meter resulting in a brief electrical fire.

Rapides Parish 2 E Forest Hill 23 1655CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

A few trees were blown down in Woodworth, one of which landed on a house causing minor damage.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Rapides Parish 1 ENE Hotwells 23 1739CST 0 0 0.00K 0.00K Hail (0.88)

The coop observer at the Cotile Fire Department unit 812 reported nickel sized hail at 8020 Highway 1200.

A few isolated severe storms occurred across Louisiana as a weak disturbance traveled across the region.

MAINE, North Washington County 1 S Topsfield 16 1351EST 0 0 Hail (1.00)

Washington County Cooper 16 1457EST 0 0 Hail (1.75)

Washington County Calais 16 1457EST 0 0 Hail (1.75)

Low pressure tracking across northern Maine drew a cold front across the region during the afternoon hours of the 16th...with thunderstorms developing in advance of the front. Severe thunderstorms produced large hail across portions of Washintgton county. Aroostook County Ft Kent 31 1330EST 0 0 Thunderstorm Wind (52EG)

Several trees were toppled around Fort Kent by wind gusts estimated at 60 mph. A tree was reported down on Highland Road...with another tree down on South Perley Brook Road. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

250 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MAINE, North Aroostook County Ft Kent 31 1630EST 0 0 Thunderstorm Wind (52EG)

A second severe thunderstorm crossed Fort Kent during the late afternoon hours. Several trees were again toppled around town by wind gusts estimated at 60 mph. Scattered power outages were also reported.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Aroostook County Guerette 31 1707EST 0 0 Thunderstorm Wind (56EG)

Trees were toppled along Route 161 from just north of New Sweden to Cross Lake by wind gusts estimated at 65 mph. The fallen trees blocked portions of the road for a time. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Aroostook County Sinclair 31 1707EST 0 0 Thunderstorm Wind (56EG)

Trees were toppled along Route 162 near Sinclair by wind gusts estimated at 65 mph. The fallen trees blocked portions of Route 162...along with many dirt forest roads in the area...for a time.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Aroostook County 3 WSW State Rd 31 1730EST 0 0 Thunderstorm Wind (56EG)

Seven trees were toppled along Richardson Road near Castle Hill by wind gusts estimated at 65 mph. The trees toppled were up to 2 feet in diameter. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Aroostook County Presque Isle 31 1745EST 0 0 Thunderstorm Wind (52EG)

A tree and several power lines around Presque Isle were toppled by wind gusts estimated at 60 mph. The tree was toppled near the High School...with 3 reports of downed wires around town.

A cold front moved south across northern Maine during the afternoon hours of the 31st...with thunderstorms developing in advance of the front. Severe thunderstorms produced damaging winds across portions of northern Aroostook county. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. MAINE, South Somerset County Skowhegan 25 1631EST 28 0218EST 0 0 0.00K 0.00K Flood

Heavy rain produced flooding on the Kennebec River at Skowhegan (flood stage 35,000 cfs) which crested at 48,588 cfs.

Low pressure tracking along a slow moving cold front produced 1.5 to 3 inches of rain across northern and central Maine.

MEZ023-028 Coastal Cumberland - Coastal Waldo - Coastal York 25 2303EST 26 0053EST 0 0 18.5K 0.00K Coastal Flood

The highest astronomical tides of the month (11.8 feet in Portland Harbor) combined with a weak, but developing, area of low pressure (1000 mb) near Cape Cod to produce coastal flooding in the region during the late evening hours of May 25th. Fortunately winds were relatively light, with relatively modest seas along the coast. A storm surge of 0.87 feet in Portland Harbor brought the storm tide to 12.61 feet. This resulted in minor coastal flooding along the wharfs and adjacent side streets in Portland. Granite Point and Biddeford Pool Roads were covered in water in Biddeford, and flooding occurred in a parking lot at the City Landing in Belfast. Minor erosion and splash-over occurred along the beach roads in Kennebunk, Wells and York. Additional flooding may have occurred along the coast, however due to the late night timing of the storm tide, little was observed.

251 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MAINE, South Kennebec County 1 W Augusta 26 0300EST 27 1715EST 0 0 0.00K 0.00K Flood

Heavy rain produced flooding on the Kennebec River at Augusta (flood stage 12.0 ft) which crested at 13.33 ft.

Kennebec County North Sidney 26 1525EST 1 WSW Vassalboro 1715EST 0 0 0.00K 0.00K Flood

Heavy rain produced minor flooding on the Kennebec River at North Sidney (flood stage 17.0 ft) which crested at 17.02 ft.

Low pressure tracking along a slow moving cold front produced 1.5 to 3 inches of rain across northern and central Maine.

MARYLAND, Central Baltimore City (c) County Arbutus 08 1454EST 0 0 0.00K 0.00K Hail (1.00)

Montgomery County 2 NW Potomac 08 1545EST 0 0 0.00K 0.00K Hail (1.00)

Frederick County 1 SSW Walkersville 08 1614EST 0 0 0.00K 0.00K Hail (1.00)

Low pressure tracked northeast of the Mid Atlantic. While most of the forcing was north of the region, easterly flow transported moisture into the region and surface convergence led to storms that produced heavy rainfall, large hail and damaging winds.

MDZ004-009-010 Frederick - Howard - Montgomery 09 0055EST 0715EST 0 0 0.00K 0.00K Dense Fog

Heavy rain occurred during the day as low pressure moved north of the Mid Atlantic. Low level moisture was in place and breaks in the cloud cover led to fog development overnight.

Harford County Vale 11 1437EST 0 0 0.00K 1.00K Thunderstorm Wind (52EG)

There were trees down near intersection of Carrs Mill Road and Wildwood Drive.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Harford County 1 NNE Bel Air 11 1548EST 0 0 5.00K 1.00K Thunderstorm Wind (56EG)

There were large trees on a house including a Willow tree. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Harford County 1 SSW Glenville 11 1557EST 0 0 0.00K 3.00K Thunderstorm Wind (74EG)

There were at least ten trees down. Low pressure and an associated cold front crossed the Mid Atlantic. Ahead of this system, southerly flow transported moisture into the region. Thunderstorm wind damage was the main threat. Note: The estimated wind gust of 74 knots is equivalent to 85 mph. MDZ003>005-009> Carroll - Central and Eastern Allegany - Extreme Western Allegany - Frederick - Howard - Montgomery - 010-501>502 Washington 14 0315EST 0730EST 0 0 0.00K 0.00K Frost/Freeze

High pressure was overhead for the second consecutive day while cool dry air filtered into the region. Clear skies led to radiational cooling overnight for most of the Mid Atlantic.

252 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MARYLAND, Central Washington County 1 E Hancock 22 1638EST 0 0 0.00K 0.00K Hail (1.00)

Washington County 1 NW Moffet 22 1741EST 0 0 0.00K 0.00K Hail (1.00)

Frederick County 1 N St Anthony 22 1825EST 0 0 0.00K 1.00K Thunderstorm Wind (56EG)

There were six large trees down on Annandale Road. High pressure over the Atlantic led to southerly flow to transport warm humid conditions in the Mid Atlantic. A trough axis led to the development of thunderstorms across the west of the Blue Ridge. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Montgomery County 1 SW Purdum 23 1815EST 2015EST 0 0 0.00K 0.00K Flash Flood

Kings Valley road at Kingstead Road were flooded. Montgomery County 1 E Cedar Grove 23 1830EST 2030EST 0 0 0.00K 0.00K Flash Flood

Loghouse Road was impassable at Magruder Branch. Howard County Cooksville 23 1843EST 2043EST 0 0 0.00K 0.00K Flash Flood

MD state route 97 was flooded and closed at the intersection with MD route 144 near Cooksville.

Howard County 1 NE Hanover 23 1930EST 2130EST 0 0 0.00K 0.00K Flash Flood

There was a swift water rescue at Mcendree and Rover Mill Roads.

Montgomery County 1 W Laytonsville 23 1935EST 2135EST 0 0 0.00K 0.00K Flash Flood

Woodfield road at Churchill Downs Road was closed due to high water.

A cold front was approaching from the west. Ahead of it temperatures reached their convective temps and wind speeds increased. Thunderstorms formed along a lee trough.

Montgomery County Capitol View Park 23 2145EST 0 0 0.00K 0.25K Thunderstorm Wind (52EG)

There was a tree down in the Kensington area. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Charles County 1 ENE La Plata 23 2218EST 0 0 1.00K 0.25K Thunderstorm Wind (52EG)

A tree limb fell on power lines. A cold front was approaching from the west. Ahead of it temperatures reached their convective temps and wind speeds increased. Thunderstorms formed along a lee trough. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

MDZ501 Extreme Western Allegany 25 0400EST 0730EST 0 0 0.00K 0.00K Frost/Freeze

Canadian high pressure moved over the area. Winds diminished overnight and temperatures dropped below freezing.

253 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MARYLAND, Central Prince George's County 2 S Friendly Pg Arpk Arp 28 1838EST 0 0 0.00K 0.00K Hail (1.00)

Prince George's County 2 SSE Crestview Manor 28 1840EST 0 0 0.00K 0.50K Thunderstorm Wind (52EG)

There was a tree down near 13200 block of Brandywine Road. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Prince George's County 2 SSE Crestview Manor 28 1840EST 0 0 0.00K 0.50K Thunderstorm Wind (52EG)

There were two large trees down near 6700 Block of Floral Park Road.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Prince George's County 1 SSW Brandywine 28 1841EST 0 0 0.00K 0.25K Thunderstorm Wind (52EG)

There was a tree down on the 8500 block of Timothy Road. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Prince George's County 1 SSW Cheltenham 28 1845EST 0 0 0.00K 0.50K Thunderstorm Wind (52EG)

There were multiple tree branches about four inches in diameter broken off and on the ground.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Prince George's County 1 W North Keys 28 1850EST 0 0 0.00K 0.25K Thunderstorm Wind (52EG)

There was a tree down on Molly Berry Road near North Keys. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Prince George's County 1 NW North Keys 28 1850EST 0 0 0.00K 0.25K Thunderstorm Wind (52EG)

There was a tree down near the intersection of Cross Road trail and North Keys Road.

A shortwave trough moved north of the region. Organized convection developed near the I-95 corridor where instability was the greatest. Scattered showers and thunderstorms produced large hail, heavy rainfall and damaging winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. MASSACHUSETTS, Central and East Norfolk County 2 S Stoughton 09 1531EST 1533EST 0.38 50 0 0 20.00K 0.00K Tornado (EF0)

A tornado touched down at a car dealership on Route 138 in Stoughton where it was captured by a security camera and recorded on several employees cell phone cameras. Three RV trailers, weighing about 5000 pounds each, were pushed back about 6 feet against a chain link fence. One trailer was lifted about 15 feet into a light pole but landed on its wheels with minimal damage. An aluminum door about 20 feet high and 15 feet wide was blown out of the service garage. Eyewitnesses reported ceiling tiles being lifted inside the dealership as the tornado passed overhead. The tornado entered a wooded area just to the northeast of the dealership. Roughly one quarter of a mile away on Erica Drive and Dean Road, two large pine trees were downed before the tornado dissipated. A mid level low and cold pool aloft moved over Southern New England, steepening mid-level lapse rates and resulting in enough instability for showers and thunderstorms to develop. A weak, short-lived tornado spun up in one of these thunderstorms near the Bay State Ford dealership in Stoughton.

Bristol County Acushnet 11 1943EST 2100EST 0 0 5.00K 0.00K Flood

Belleville Avenue between Tarkiln Hill Road and Nash Road was flooded and nearly impassable. The basement of the Urban Grille on Purchase Street was flooded with 10 inches of water.

254 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MASSACHUSETTS, Central and East Plymouth County 1 NE East Wareham 11 2049EST 2200EST 0 0 0.00K 0.00K Flood

A foot of water flooded Route 28 in Wareham near the Cranberry Plaza Shopping Center.

Plymouth County Marion 11 2227EST 2330EST 0 0 0.00K 0.00K Flood

Spring Street near the Taber Library was flooded and almost impassable.

Deep layer moisture and lift associated with a low level jet resulted in widespread showers across Southern New England. High precipitable water values led to heavy rain and flooding of low lying urban and other poor drainage areas.

Bristol County 1 E Taunton 21 1526EST 0 0 5.00K 0.00K Lightning

Lightning struck a house on Jeanine Circle, causing damage to the electric service.

Hampshire County Granby 21 1600EST 0 3 0.00K 0.00K Lightning

Three students at the MacDuffie School in Granby were struck by lightning while sitting outside at a picnic table. Two students were knocked unconscious and were hospitalized. The third student was further away when the lightning struck and was not directly hit, suffering less serious effects. The students were 16, 17, and 20 years of age. All of the students reovered from their injuries.

Worcester County 1 N Southbridge 21 1640EST 0 0 0.00K 0.00K Hail (0.75)

Worcester County 1 N Southbridge 21 1647EST 0 0 0.00K 0.00K Hail (1.00)

Worcester County Dudley 21 1650EST 0 0 0.00K 0.00K Hail (0.75)

Worcester County 1 N Southbridge 21 1736EST 0 0 0.00K 0.00K Hail (0.75)

Norfolk County 1 SSW Wellesley 21 1747EST 0 0 0.00K 0.00K Hail (0.75)

Essex County 1 W Lynn 21 1824EST 0 0 0.00K 0.00K Hail (0.75)

Hampshire County West Cummington 21 2109EST 0 0 0.00K 0.00K Hail (1.00)

Hampshire County West Cummington 21 2109EST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)

A wind gust to 59 mph was reported in West Cummington. A backdoor cold front pushing south through New England produced isolated severe thunderstorms in western and central Massachusetts during the afternoon and evening. Note: The measured wind gust of 51 knots is equivalent to 59 mph.

Franklin County Ashfield 22 1615EST 0 0 0.00K 0.00K Hail (0.75)

The Cooperative Observer in Ashfield, MA reported a large amount of hail fell. Most of it was three-eighths of an inch in diameter, but a few were as large as three-quarters of an inch.

255 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MASSACHUSETTS, Central and East Franklin County Conway 22 1633EST 0 0 0.00K 0.00K Hail (1.75)

Franklin County Shelburne 22 1640EST 0 0 25.00K 0.00K Lightning

Lightning struck a tree outside a house on Colrain Shelburne Road, traveled through the ground and started a fire in the attic of the house. Franklin County New Salem 22 1650EST 0 0 0.00K 0.00K Hail (2.25)

Worcester County 1 NW Gardner 22 1737EST 0 0 0.00K 0.00K Hail (0.88)

Worcester County 1 NW Gardner 22 1740EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

A tree and wires on Minott Road in Gardner were downed by thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Worcester County 1 SW East Templeton 22 1744EST 0 0 0.00K 0.00K Hail (0.75)

A warm front moved northward over Southern New England, providing lift for showers and thunderstorms to develop across much of western Massachusetts. There was enough cold air aloft for some very large hail (for New England) to fall from these storms. The National Weather Service office in Taunton received several reports of golf ball to almost tennis ball size hail from parts of western Massachusetts.

Hampshire County Plainfield 29 1910EST Chesterfield 1915EST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds downed trees on wires in Plainfield and Cummington. In Chesterfield, a downed tree blocked Old Chesterfield Road. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Franklin County 1 E Shelburne Falls 29 1924EST 1 E Bernardston 1938EST 0 0 8.00K 0.00K Thunderstorm Wind (50EG)

Trees were downed in Shelburne Falls on Route 2 at State Road, and in Northampton on the Spring Street extension.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Franklin County Erving 29 1935EST 0 0 8.00K 0.00K Lightning

Lightning struck a tree in Erving which fell and blocked a portion of Route 2.

Franklin County New Salem 29 1955EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

A tree was downed onto wires on Crowl and Neilson Streets. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Worcester County 1 S Rutland 29 2025EST 0 0 50.00K 0.00K Lightning

A lightning strike ignited a house fire on Haven Hill Road.

256 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MASSACHUSETTS, Central and East Essex County Merrimac 29 2110EST 0 0 10.00K 0.00K Lightning

A house was struck by lightning on Church Street. A few severe thunderstorms formed in western Massachusetts during the evening and produced damaging winds. The storms developed in a warm and humid air mass south of a warm front, which remained draped over central New England.

MASSACHUSETTS, West Berkshire County 1 W Alford 21 1550EST 0 0 Thunderstorm Wind (60EG)

State Police reported that 10 to 15 trees were sheared off and wires were knocked down due to thunderstorm winds near Alford. The downed trees and wires caused Route 71 to be closed.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Berkshire County 1 ENE Mt Washington 21 1625EST 1630EST 0 0 Hail (1.00)

A trained spotter reported quarter size hail two miles north of Alander. The hail fell to a depth of five inches and destroyed several tents at a YMCA Camp Ground. Berkshire County 1 SW Windsor 21 1951EST 1953EST 0 0 Hail (1.00)

A trained spotter reported quarter size hail from a thunderstorm in Windsor.

A very warm and humid air mass was in place across western Massachusetts on Tuesday, May 21st. A slow moving frontal boundary was situated just north of the area across the Saint Lawrence River Valley along the United States-Canadian border. During the day, a wave of low pressure moved along this boundary, allowing the boundary to slowly push southward towards the area. With strong wind shear aloft and plenty of low level moisture in place, thunderstorms developed during the afternoon hours across eastern New York and some of these moved into western Massachusetts by early evening. Thunderstorms initially formed as single cells and supercells, but eventually organized into several broken lines, which moved from west to east across the area. A few of the thunderstorms that moved across western Massachusetts produced wind damage to trees and power lines, as well as quarter-size hail. As the surface wave of low pressure moved away and with the loss of daytime heating, thunderstorms eventually ended during the late evening hours.

Berkshire County Lanesborough 29 1851EST 0 0 Thunderstorm Wind (56EG)

Widespread trees were reported down in Lanesborough as a result of thunderstorm winds.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Berkshire County 3 W Williamstown 29 1930EST 3 NNW South Williamstown 2145EST 0 0 0.00K 0.00K Flash Flood

Several culverts along Treadwell Hollow Road in Williamstown were reported to be damaged due to flash flooding. Two homes were without road access as a result of the flooding. Berkshire County 2 S North Adams 29 1931EST 2145EST 0 0 0.00K 0.00K Flash Flood

Flash flooding was reported on Church Street north of Adams as a result of heavy rainfall from thunderstorms. The force of flooding removed manhole covers off the road.

257 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MASSACHUSETTS, West Berkshire County 1 WNW Williamstown 29 1935EST 2145EST 0 0 0.00K 0.00K Flash Flood

Flash flooding was reported along Northwest Hill Road near Williamstown. A garage and its concrete slab was swept away from the force of the flooding. Berkshire County 1 WSW North Adams 29 1939EST 2145EST 0 0 0.00K 0.00K Flash Flood

Flash flooding was reported in North Adams as a result of heavy rainfall from thunderstorms. State Street was impassable due to flooding and was temporarily closed. Berkshire County Greylock 29 1942EST 2145EST 0 0 0.00K 0.00K Flash Flood

Flash flooding was reported along Massachusetts Avenue in North Adams as a result of heavy rainfall from thunderstorms.

Berkshire County New Marlborough 29 1943EST 0 0 Thunderstorm Wind (50EG)

Multiple trees and wires were reported down in New Marlborough due to thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Berkshire County 1 S Williamstown 29 1945EST 2145EST 0 0 0.00K 0.00K Flash Flood

Flash flooding was reported in Williamstown as a result of heavy rainfall from thunderstorms. Route 43 was reported to be impassable due to flooding. Berkshire County 2 W West Stockbridge 29 2015EST 2145EST 0 0 0.00K 0.00K Flash Flood

Flash flooding was reported in West Stockbridge as a result of heavy rainfall from thunderstorms. Several roads in the town was reported to be impacted by the flooding. During the day on May 29th, a warm front lifted northward across western Massachusetts. Although the day began cloudy, some breaks of sun started to occur by early afternoon. At the same time, a potent upper level disturbance over Ontario started to approach the region and a strong jet streak was located just to the north. With a moist southerly flow moving into the region at the surface, it became rather humid as well. With all these ingredients coming together, thunderstorms developed across upstate New York by mid afternoon and began to spread eastward. The thunderstorms reached Berkshire County by the evening hours. Many of the thunderstorms organized into a strong squall line, producing wind damage. These thunderstorms produced a significant amount of lightning, as well, which in combination with the wind damage, led to some power outages across the area. With the region already rather saturated from repeated thunderstorms over the past week, the additional heavy rainfall that occurred caused flash flooding in some areas. This caused roads to be closed due to being impassable by flowing water. Portions of Williamstown were hit quite hard, as at least eight roads were damaged due to flooding. Two homes were without road access as a result of the flooding. Thunderstorms pushed east of the area by around midnight, ending the threat of severe weather.

258 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MICHIGAN, East Midland County 1 N Sanford 20 1556EST 0 0 2.00K 0.00K Thunderstorm Wind (54EG)

Trees and powerlines reported down. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Saginaw County 3 S Dice 20 1650EST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Power lines reported down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Bay County 2 SE Bentley 20 1652EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A barn was blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Tuscola County 2 NNW Fairgrove 20 1653EST 0 0 0.50K 0.00K Thunderstorm Wind (52EG)

A power line pole was snapped. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Saginaw County 1 NW Saginaw 20 1659EST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees reported blown down. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Huron County 1 NE Port Austin Afs 20 1703EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)

A power line was reported down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Huron County Grind Stone City 20 1707EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)

A power line was reported down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Shiawassee County 4 SW Burton 20 1712EST 0 0 4.00K 0.00K Thunderstorm Wind (54EG)

Trees and power lines reported blown down. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Livingston County 2 NE Fowlerville Arpt 20 1733EST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees reported down. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Genesee County 2 E Flint Daltons Arpt 20 1738EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Large tree limbs were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Genesee County 3 NE Flint 20 1742EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Large tree limbs were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

259 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MICHIGAN, East Livingston County 1 N Oak Grove 20 1746EST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees were reported blown down. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Genesee County 1 W Linden 20 1754EST 0 0 4.00K 0.00K Thunderstorm Wind (61EG)

Multiple trees were reported blown down. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Genesee County 3 WSW Rankin 20 1755EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Twelve inch diameter trees reported blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Genesee County 1 S Bayport Park 20 1800EST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees reported blown down at Fenton and Lakeside Landing Roads.

Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Lapeer County 5 WSW Silverwood 20 1801EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A tree was reported down across Rich and Murphy Lake Roads. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Lapeer County 1 E North Branch 20 1803EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

Power lines reported down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Sanilac County 4 WNW Deckerville 20 1812EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Power lines reported down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Genesee County 1 NW Lapeer Hgts 20 1817EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Power lines reported down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. St. Clair County 2 NNW Yale 20 1855EST 0 0 0.00K 0.00K Hail (0.75)

St. Clair County 1 SE Port Huron Arpt 20 1935EST 0 0 0.00K 0.00K Hail (1.00)

Several severe thunderstorms developed north of I-69.

Tuscola County 3 NW Fairgrove 21 1709EST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Power poles reported blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Tuscola County 1 E Cass City 21 1745EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Large tree blown down, along with 12 inch limbs. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

260 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MICHIGAN, East Tuscola County 1 NNW Cass City 21 1745EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A small shed was blown over. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Tuscola County Cass City 21 1745EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Six to eight inch tree limbs down. A severe thunderstorm impacted Tuscola County. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

Monroe County 1 NW Dundee 22 1558EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A 9 inch diameter tree limb was reported blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Washtenaw County 1 N Whittaker 22 1614EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A 14 inch diameter tree limb was reported blown down, taking the power lines down as well.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Wayne County 2 ENE Inkster 22 1640EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A 24 inch diameter tree was reported snapped in half. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Wayne County 1 S Redford Hgts 22 1649EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A 16 inch tree limb was reported blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Wayne County 1 SSE Redford 22 1649EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Power lines were reported down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oakland County 2 SW Oxbow 22 1657EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A spotter estimated a 60 mph thunderstorm wind gust. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. St. Clair County 1 W Starville 22 1730EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A 16 inch diameter tree limb was reported down. A few severe thunderstorms impacted the Detroit Metro Area with isolated wind gusts up to 60 mph. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Shiawassee County 1 WNW Shaftsburg 28 1947EST 1949EST 0.74 60 0 0 30.00K 0.00K Tornado (EF0)

The Tornado was rated EF0 with maximum winds to 75 mph. Path width was 60 yards and path length 3/4 mile. The tornado started at Lansing and Warner roads, and followed lansing road and then crossed I-69. The tornado ended at the entrance ramp of the highway rest area. Many trees were uprooted and shingles were torn off a church.

261 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MICHIGAN, East Shiawassee County 1 N Shaftsburg 28 1950EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Several large tree limbs up to 12 inch in diameter were blown down.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Shiawassee County Morrice 28 1952EST 1953EST 0.5 100 0 0 50.00K 0.00K Tornado (EF0)

The tornado was rated EF0 with maximum winds to 75 mph. Path width was 100 yards and path length 1/2 mile. The tornado started at Bethemy Cemetary and moved northeast, ending at West Britton and Hidden Ridge Roads. Trees were uprooted and many tree limbs were downed.

Genesee County 1 SW Beecher 28 2001EST 1 SW Elmcrest 2006EST 2.28 400 0 0 100.00K 0.00K Tornado (EF1)

The tornado was rated an EF1 with maximum wind speeds of 105 mph. The maximum path width was 400 yards with a total path length of 2.3 miles. The tornado started at the southern end of Hasselbring Park and continued northeast to around the intersection of Harry Street and Humprey Avenue. The greatest damage occurred along Saginaw Street in between Holtslander and Downey Avenues. There was significant tree damage as well as damage to older commercial buildings of small to medium size.

Shiawassee County 4 SSE Bancroft 28 2009EST 3 NNE Byron 2019EST 5.6 550 0 0 100.00K 0.00K Tornado (EF1)

This tornado formed 4 miles south-southeast of Bancroft and tracked east-northeastward for about 5.5 miles before exiting Shiawaseee County about 3 miles north-northeast of Byron at 2019EST. The tornado continued in Genesee County for another 4 miles, before dissipating at 2024EST. The tornado was rated EF1 with maximum winds to 100 mph. Path width was 550 yards. The tornado started just south of the intersection of Britton and Grand River Roads. The tornado moved northeast near the city of Byron, before exiting Shiawassee County. Many trees were uprooted and snapped. 50 percent of a roof and siding were torn off a home. An old barn was destroyed and another whole roof was torn off.

Genesee County 1 WSW Gaines 28 2019EST 1 NW Gaines Arpt 2024EST 4.29 200 0 0 10.00K 0.00K Tornado (EF0)

This tornado formed 4 miles south-southeast of Bancroft in Shiawassee County and entered Genesee County about 1.5 miles west-southwest of Gaines at 2019EST. The tornado then continued for another 4.3 miles before dissipating 1.3 miles northwest of the Gaines Airport at 2024EST. While in Genesee County, the tornado was rated EF0 with maximum winds to 80 mph. The path width was 200 yards. The tornado ended at the intersection of Baldwin and Seymour roads. Many trees were uprooted and snapped. One barn lost a section of roof.

Genesee County 2 W Lake Fenton 28 2030EST 2 SE Rankin 2041EST 5.1 500 0 0 225.00K 0.00K Tornado (EF2)

The tornado was rated EF2 with maximum wind speeds of 115 mph. The maximum path width was 500 yards with a total path length of 5.1 miles. The tornado started along Odell Road south of Linden Road and continued to Fenton Road north of Baldwin Road. The greatest damage occurred along Thompson Road between Fairbanks and Jennings Roads. There was significant damage to homes, including removal of roofs, along with substantial tree damage.

Genesee County 3 SE Grand Blanc 28 2054EST 1 N Goodrich 2106EST 4.61 300 0 0 350.00K 0.00K Tornado (EF2)

The tornado was rated EF2 with a maximum wind speed of 130 mph. The maximum path width was 300 yards with a total path length of 4.6 miles. The tornado started near the intersection of Vassar Road and Pointe North Drive and continued to State Road near Perry Road. The greatest damage occurred near the intersection of Hegel Gale Roads. A house was nearly destroyed, along with a garage and external storage facilities wrecked.

262 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MICHIGAN, East

A warm front spawned 6 tornadoes which impacted Shiawassee and Genesee Counties.

St. Clair County 4 W Brockway 29 0701EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several trees were reported blown down, as well as a grain silo blown over.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. St. Clair County 2 NW Smiths Creek 29 0702EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Large tree branches and one tree reported blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. St. Clair County 1 NNE Port Huron Intl Arpt 29 0707EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A large tree was blown down, along with large tree limbs. A severe thunderstorm developed over St Clair County. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

Oakland County 1 SW Oakley Park 30 1312EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A 10 inch diameter tree was reported blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Oakland County 1 E Huron Gardens 30 1328EST 0 0 3.00K 0.00K Thunderstorm Wind (54EG)

Power poles were snapped. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Oakland County 1 NE Keego Harbor 30 1330EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A tree was reported blown down on the road. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Macomb County 1 NNW Cady 30 1353EST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)

Small branches were reported down. Note: The measured wind gust of 51 knots is equivalent to 59 mph. Macomb County 1 SW Utica Arpt 30 1405EST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Two trees reported blown down. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Midland County 1 SW Oil City 30 1418EST 0 0 0.00K 0.00K Hail (1.75)

Midland County 1 SW Oil City 30 1423EST 0 0 0.00K 0.00K Hail (0.88)

St. Clair County 2 SSW Port Huron 30 1427EST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Several trees reported blown down. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

263 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MICHIGAN, East St. Clair County 1 S Port Huron Arpt 30 1440EST 0 0 10.00K 0.00K Thunderstorm Wind (59EG)

Trees reported down, along with damage to houses. Note: The estimated wind gust of 59 knots is equivalent to 68 mph. Bay County 1 W Crump 30 1525EST 0 0 0.00K 0.00K Hail (0.75)

Bay County 1 NW Linwood 30 1535EST 0 0 0.00K 0.00K Hail (1.00)

Wayne County 1 SSE Tryonville 30 1555EST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Two large trees reported blown down. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Genesee County 1 NE Flint Daltons Arpt 30 1622EST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Trees reported blown down. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Oakland County 3 ENE Auburn Hgts 30 1624EST 0 0 0.00K 0.00K Hail (0.88)

Genesee County 1 W Mt Morris 30 1633EST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)

Three trees reported blown down, one of which fell onto a house.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Genesee County Mt Morris 30 1636EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A tree was reported down, along with power lines. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Genesee County 1 W Mt Morris 30 1636EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A power pole was reported down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Genesee County 1 NE Mt Morris 30 1640EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Trees and power lines reported down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Tuscola County 3 S Tuscola 30 1650EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Power lines reported down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Tuscola County 2 SSW Oakhurst 30 1710EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Power lines reported down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

264 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MICHIGAN, East Huron County 4 NNE Bay Port 30 1754EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Power lines reported down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Saginaw County 2 SE Nelson 30 1840EST 0 0 0.00K 0.00K Hail (1.00)

Saginaw County 1 S Nelson 30 1840EST 0 0 0.00K 0.00K Hail (1.00)

Saginaw County 3 N Swan Creek 30 1845EST 0 0 0.00K 0.00K Hail (0.88)

Saginaw County 1 NE Nelson 30 1850EST 0 0 0.00K 0.00K Hail (1.00)

Saginaw County 2 NE Nelson 30 1850EST 0 0 0.00K 0.00K Hail (1.00)

Saginaw County 3 WNW Garfield 30 1851EST 0 0 0.00K 0.00K Hail (1.00)

Saginaw County 1 N Shields 30 1853EST 0 0 0.00K 0.00K Hail (0.75)

Saginaw County 3 WSW Garfield 30 1855EST 0 0 0.00K 0.00K Hail (1.00)

Saginaw County 3 NW Garfield 30 1855EST 0 0 0.00K 0.00K Hail (1.00)

Saginaw County 2 NW Swan Creek 30 1910EST 0 0 0.00K 0.00K Hail (0.88)

Saginaw County 2 ESE Nelson 30 1918EST 0 0 0.00K 0.00K Hail (1.00)

Saginaw County 2 ESE Nelson 30 1928EST 0 0 0.00K 0.00K Hail (1.00)

Saginaw County 3 SE Chesaning 30 1958EST 0 0 20.00K 0.00K Thunderstorm Wind (56EG)

Multiple trees blown down. Barn Destroyed, along with power poles downed.

Several severe thunderstorms developed with good afternoon instability. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Macomb County 1 S Disco 31 1230EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

One ten inch diameter tree limb reported down, with additional smaller branches downed.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

265 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MICHIGAN, East Sanilac County 3 S Deckerville 31 1307EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Trees blown down. One barn was also blown down, along with the roof blown off a second barn.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Wayne County 1 NNE Wyandotte 31 1920EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Eight inch diameter tree limbs reported down, along with damage to street lamp covers.

Isolated severe thunderstorms developed producing wind damage. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. MICHIGAN, Extreme Southwest Berrien County Galien 28 2155EST 2156EST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

County dispatch reported numerous trees down across the southern portions of the county.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Berrien County 2 W Buchanan 28 2202EST 2203EST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

A trained spotter reported numerous large tree limbs down, up to a foot in diameter, on Gardner Rd.

A cluster of thunderstorms developed southwest of Chicago during the mid evening hours and moved rapidly east, taking on a bowing structure as it entered southwestern lower Michigan. Wind damage was reported across Berrien county before the line rapidly began weakening as it encountered a more stable air mass. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. MICHIGAN, North Leelanau County 1 W Greilickville 20 1251EST 0 0 0.00K 0.00K Hail (1.00)

Leelanau County 3 S Northport 20 1308EST 0 0 0.00K 0.00K Hail (1.00)

Antrim County Kewadin 20 1323EST 0 0 8.00K 0.00K Thunderstorm Wind (55EG) Multiple trees were downed. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Antrim County 3 NW Clam River 20 1330EST 0 0 0.00K 0.00K Hail (0.75)

Kalkaska County 3 N Spencer 20 1351EST 0 0 0.00K 0.00K Hail (1.75)

Antrim County 3 ESE Bellaire 20 1355EST 0 0 0.00K 0.00K Hail (1.00)

Antrim County Mancelona 20 1400EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

A large tree and multiple tree limbs were downed. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

266 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MICHIGAN, North Charlevoix County Walloon Lake 20 1410EST 0 0 15.00K 0.00K Thunderstorm Wind (60EG) Trees and power lines downed. Forty trees uprooted at Walloon Lake Country Club.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Roscommon County Houghton Lake 20 1410EST 0 0 5.00K 0.00K Thunderstorm Wind (54EG)

Several trees were downed. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Charlevoix County 3 ENE East Jordan Arpt 20 1416EST 0 0 0.00K 0.00K Hail (1.50)

Gladwin County 1 N Lyle 20 1515EST Winegars 1525EST 0 0 55.00K 0.00K Thunderstorm Wind (60EG)

A swath of wind damage moved across the Beaverton and Sugar Springs area. Dozens of trees were downed, and some minor damage to homes occurred. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Gladwin County 1 NE Dale 20 1530EST 0 0 0.00K 0.00K Hail (1.00)

Ogemaw County 2 SSW West Branch 20 1530EST 0 0 1.50K 0.00K Thunderstorm Wind (52EG)

A semi-trailer was blown over near I-75. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Arenac County Sterling 20 1553EST 1 ENE Standish 1557EST 0 0 45.00K 0.00K Thunderstorm Wind (55EG)

Trees were downed in Sterling, while the roof was blown off of a home in Standish.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Arenac County 1 SW Twining 20 1605EST 0 0 4.00K 0.00K Thunderstorm Wind (54EG)

Trees were downed. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Iosco County 1 NW Long Lake 20 1607EST 0 0 4.00K 0.00K Thunderstorm Wind (54EG)

A number of trees were downed. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Alcona County Glennie 20 1610EST 0 0 7.00K 0.00K Thunderstorm Wind (55EG)

Numerous trees and power lines were downed. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Iosco County Tawas City 20 1615EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

Some tree limbs and numerous power lines were downed. An upper level disturbance interacted with an unstable airmass in place across Lower Michigan, producing multiple short line segments of strong to severe thunderstorms. These storms produced both large hail and damaging wind gusts during the afternoon hours. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

267 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MICHIGAN, North Presque Isle County 1 E Rogers City 21 0530EST 0 0 0.00K 0.00K Hail (0.75)

Presque Isle County 1 N Onaway 21 1834EST 0 0 0.00K 0.00K Hail (0.75)

A round of nocturnal thunderstorms produced locally heavy rain in northern Lower Michigan early on the 21st. Additional storms developed later in the day in the same area. In each case, one thunderstorm produced moderate sized hail.

Roscommon County 1 SW Lyon Manor 30 1410EST 0 0 0.00K 0.00K Hail (0.75)

Crawford County 3 WNW Camp Grayling 30 1416EST 0 0 0.00K 0.00K Hail (0.75)

Crawford County 1 N Frederic 30 1430EST 0 0 0.00K 0.00K Hail (1.00)

Antrim County 10 E Chestonia 30 1509EST 0 0 0.00K 0.00K Hail (1.00)

Arenac County 4 WSW Sterling 30 1516EST 0 0 0.00K 0.00K Hail (1.00)

Charlevoix County 3 NNE Horton Bay 30 1520EST 0 0 75.00K 0.00K Thunderstorm Wind (55EG)

A large and historic barn was severely damaged. Multiple trees were downed, one onto a home.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Gladwin County 2 W Beaverton 30 1522EST 0 0 0.00K 0.00K Hail (0.88)

Montmorency County 10 N Atlanta 30 1530EST 0 0 22.00K 0.00K Thunderstorm Wind (55EG)

Over forty trees were downed in Clear Lake State Park. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Alcona County 1 NW Greenbush 30 1550EST 0 0 6.00K 0.00K Thunderstorm Wind (55EG)

Multiple trees were downed on South Poor Farm Road. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Presque Isle County 2 SSE Big Cut 30 1551EST 0 0 6.00K 0.00K Thunderstorm Wind (55EG)

Multiple trees downed on County Road 638 between Millersburg and Hawks.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Otsego County Gaylord 30 1746EST 0 0 0.00K 0.00K Hail (0.75)

Disorganized clusters of thunderstorms developed in the afternoon, in a warm and rather humid airmass. Some of these storms became severe.

268 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MICHIGAN, Upper MIZ009 Gogebic 01 1900CST 02 1700CST 0 0 0.00K 0.00K Winter Storm

MIZ001>004 Baraga - Keweenaw - Northern Houghton - Ontonagon 02 0200EST 0700EST 0 0 0.00K 0.00K Winter Weather

A low pressure system moving along a stalled cold front just east of Upper Michigan produced heavy snow and freezing rain over portions of western Upper Michigan from the evening of the 1st into the 3rd.

Iron County 2 N Rogers 30 1530CST 1533CST 0 0 1.00K 0.00K Thunderstorm Wind (55EG)

A tree was reported down on a power line at the intersection of Sunset Road and Section 16 Road. The tree was on fire.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Iron County Crystal Falls 30 1540CST 1543CST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)

A tree was reported down at 4th Street and Wisconsin Avenue.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Marquette County 1 SW Ishpeming 30 1730EST 1733EST 0 0 1.00K 0.00K Thunderstorm Wind (55EG)

Trees were reported down in Ishpeming. Time was estimated based on radar.

Upper disturbances moving through a warm and unstable air mass produced several severe thunderstorms over western Upper Michigan during the late afternoon hours of the 30th. Note: The estimated wind gust of 55 knots is equivalent to 63 mph.

Gogebic County Bessemer 31 1500CST 1504CST 0 0 1.00K 0.00K Thunderstorm Wind (55EG)

A few trees and a power line were knocked down in Bessemer. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Marquette County Michigamme 31 1950EST 1953EST 0 0 0.00K 0.00K Hail (1.00)

One inch diameter hail was reported near Michigamme. Houghton County Beacon Hill 31 1950EST 1952EST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)

The spotter in Freda measured a 59 mph thunderstorm wind gust.

Upper disturbances moving through a warm and unstable air mass produced several severe thunderstorms over western Upper Michigan during the late afternoon and evening hours of the 31th. Note: The measured wind gust of 51 knots is equivalent to 59 mph.

269 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MICHIGAN, West Mecosta County 1 W Rodney 20 1328EST 0 0 5.00K 5.00K Hail (1.75)

A one and three quarters inch diameter hail report was relayed by WZZM-TV 13 near Rodney.

Newaygo County 1 E Oxpow 20 1345EST 0 0 0.00K 0.00K Hail (1.25)

A one and a quarter inch diameter hail report was received from Newaygo county at Hardy Dam from an amateur radio operator. Clare County Harrison 20 1415EST 0 0 0.00K 0.00K Hail (1.00)

A trained spotter reported one inch diameter hail. Kent County 2 NNE Cascade 20 1424EST 0 0 0.00K 0.00K Hail (1.00)

The broadcast media relayed an estimated one inch diameter hail report just northeast of Cascade.

Kalamazoo County 1 NE Long Lake 20 1435EST 0 0 0.00K 0.00K Hail (0.75)

A three quarters inch hail report was received from Kalamazoo county near Long Lake.

Mecosta County 2 W Stanwood 20 1436EST 0 0 2.00K 0.00K Thunderstorm Wind (35EG)

Mecosta county dispatch reported a downed tree brought down a couple of power lines near 8 mile road and US-131.

Note: The estimated wind gust of 35 knots is equivalent to 40 mph. Montcalm County 1 SW Trufant 20 1437EST 0 0 2.00K 0.00K Thunderstorm Wind (43EG)

Power poles were snapped in a field near Trufant. Note: The estimated wind gust of 43 knots is equivalent to 49 mph. Ionia County Belding 20 1515EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Ionia county dispatch reported they had various trees and limbs downed in Belding and Orleans.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Gratiot County 1 E Alma 20 1520EST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Several large limbs were blown down in Alma by gusts estimated up to 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Gratiot County 3 ENE Alma 20 1550EST 0 0 10.00K 0.00K Thunderstorm Wind (63EG)

A trained spotter reported large trees and power lines down near Alma and estimated wind gusts of up to 70 to 75 mph.

Note: The estimated wind gust of 63 knots is equivalent to 72 mph. Ingham County 1 W Mason 20 1720EST 0 0 0.00K 0.00K Hail (0.75)

Three quarters inch hail was reported by an amateur radio operator near Mason.

270 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MICHIGAN, West Ingham County 1 NW Williamston 20 1720EST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Ingham county dispatch reported downed trees and power lines near Williamston.

Severe weather struck portions of Southwest Lower Michigan during the afternoon and evening hours of May 20th. Damaging winds and large hail accompanied the strongest storms. As the temperature and humidity levels climbed through the day, this led to a very unstable airmass in Michigan. The arrival of a wave of low pressure triggered the storms shortly after noon. As this feature tracked northeastward through Lower Michigan through the afternoon and evening, the storms strengthened and expanded in coverage. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Ingham County 2 SW Dansville 28 1656EST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Isolated severe storms produced wind gusts to near 60 mph near Dansville.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Clinton County 3 W (LAN)Capitol Cty Arp 28 1907EST 0 0 25.00K 0.00K Thunderstorm Wind (70EG)

Wind damage at a lumberyard in Delta township and rolled a semi truck over as well. Several large tree limbs and branches were blown down near Dewitt. An old detached garage and a pole barn were damaged as well.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Kalamazoo County 1 W Milwood 28 2202EST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

A trained spotter reported that large limbs and branches were blown down in Milwood.

Isolated severe storms caused wind gusts of up to 60 to 75 mph across portions of Ingham and Clinton counties on May 28th, with significant damage occurring to a lumberyard in Delta township in Clinton county where a semi was also blown over. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Clare County 5 SE Lake George 30 1310EST 0 0 0.00K 0.00K Hail (0.75)

Three quarters inch hail was reported near Lake George. Newaygo County 1 S Newaygo 30 1454EST 0 0 0.00K 0.00K Hail (0.88)

Nickel sized hail was reported near Newaygo. Clinton County 2 WSW Merle Beach 30 1845EST 0 0 15.00K 0.00K Thunderstorm Wind (61EG)

A Clinton county emergency manager reported that two relatively new barns were blown down by wind gusts of around 70 mph. A few reports of damaging wind gusts and large hail were received on May 30th. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. MINNESOTA, Central and South Central

MNZ063-070-077- Dakota - Faribault - Freeborn - Goodhue - Rice - Steele - Waseca - Washington 084>085-092>093 01 1600CST 02 0600CST 0 0 0.00K 0.00K Winter Storm

A very unusual snow event unfolded across portions of south central Minnesota, as well as west central Wisconsin on the evening of Wednesday, May 1st. Snowfall amounts topped over a foot of snow, with locally higher amounts in a small band near Ellendale, Blooming Prairie, Owatonna, and Goodhue, Minnesota.

This system was highly unusual due to the fact that May snowfall amounts average less than an inch. A strong Canadian air mass for early May allowed for critical temperatures to lower enough to produce snow across south central and east central Minnesota during the late afternoon and early evening of Wednesday May 1st.

271 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MINNESOTA, Central and South Central

A strong surge of moisture from the gulf interacted with the cold air mass to produce very heavy snowfall from Wednesday evening, through Thursday morning, before tapering off after 6 am. Snowfall rates were as high as 1-2 inches per hour during the height of the storm. A local CoCoRaHS observer southwest of Ellendale in Steele County, Minnesota, had a record 3 day snowfall report of 17.3 inches between May 1st, to May 3rd. This is a state record for May for a three day total. Ellendale's May monthly total also was 17.3 inches and this falls just short of Minnesota's all-time monthly May snowfall record of 17.8 inches set in Virginia (St. Louis County) in 1954.

Due to the heavy snowfall and high liquid water content, large tree branches broke off and caused damage to power lines, along with numerous power outages. Todd County 4 NNW West Union 18 0104CST 0 0 0.20K 0.00K Hail (1.50)

Ping Pong ball size hail broke the windshield of a truck. Isolated thunderstorms developed after midnight across west central Minnesota, and moved slowly eastward across central Minnesota. A few thunderstorms became severe near Sauk Centre, Minnesota and produced up to 1.5 inch hail.

Pope County 1 SW Starbuck 18 1800CST 0 0 0.00K 0.00K Hail (1.25)

Severe hail fell southwest of Starbuck, Minnesota, along with a report of 54 mph winds, small tree limbs blown down and torrential rainfall. Pope County 2 NNW Lowry 18 1801CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail and a wind gust of 56 mph occurred northwest of Glenwood, Minnesota.

Several thunderstorms developed late Saturday afternoon in west central Minnesota. These storms moved slowly northward and intensified near Starbuck, Minnesota and produced half dollar size hail along with strong winds of 54 mph. Another report of large hail and 56 mph winds occurred northwest of Glenwood, Minnesota.

Ramsey County 2 NW (STP)St Paul Down Air 19 1438CST 0 0 0.00K 0.00K Hail (0.75)

Steele County 3 SSW Bixby 19 1440CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Power poles were blown from south to north, at a 45 degree angle, northwest of Blooming Prairie, near Bixby, Minnesota.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Anoka County 5 SSW Linwood 19 1515CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A tree was uprooted and then blocked the intersection of Lexington Avenue Northeast, and Crosstown Blvd Northeast in Ham Lake. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Scott County 3 WNW Elko New Market 19 1520CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)

A wind speed sensor measured a wind gust of 60 mph at the intersection of County Road 27 and Highway 2, near Elko, Minnesota. Note: The measured wind gust of 52 knots is equivalent to 60 mph. Dakota County 3 ENE Coates 19 1550CST 0 0 1.00K 0.00K Thunderstorm Wind (61EG)

Trees were damaged, along with some damage to a roof near Coates, Minnesota.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

272 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MINNESOTA, Central and South Central Dakota County Hastings 19 1556CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several trees were blown down in Hastings, Minnesota. Plus, power outages were reported in the town of Hastings.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Goodhue County 1 SW Wacouta 19 1600CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A few trees were blown down southwest of Red Wing, Minnesota.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Washington County 3 NE Cottage Grove 19 1610CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

A private weather station reported a wind gust of 58 mph near Cottage Grove, Minnesota.

Thunderstorms began to develop across south central Minnesota during the afternoon of Sunday, May 19th. These storms started to accelerate northward near Owatonna, southeast to Blooming Prairie where the first report of damage was reported northwest of the town. As these storms started to accelerate to the north-northeast, several bow-echo type thunderstorm structures moved across east central Minnesota, and into west central Wisconsin during the early evening. Reports of 60 mph winds, trees blown down, and power outages occurred from these lines of storms. In addition, heavy rainfall occurred in portions of south central and east central Minnesota, with minor street flooding in the Twin Cities Metro Area. Note: The measured wind gust of 50 knots is equivalent to 58 mph. Chippewa County 3 SE Watson 29 0915CST 0 0 0.00K 0.00K Hail (0.75)

Kandiyohi County 4 NE Pennock 29 0957CST 0 0 0.00K 0.00K Hail (1.00)

Kandiyohi County 4 NE Pennock 29 0957CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

Several large tree branches were blown off southwest of New London.

Note: The measured wind gust of 50 knots is equivalent to 58 mph. Kandiyohi County (BDH)Willmar Municipal Air 29 1015CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG) Note: The measured wind gust of 54 knots is equivalent to 62 mph.

Stearns County St Cloud 29 1140CST 0 0 0.00K 0.00K Hail (0.88)

Chippewa County 10 NNE Clara City 29 1536CST 1538CST 0 0 0.00K 0.00K Funnel Cloud

A storm chaser video taped a funnel cloud for approximately two minutes. The chaser was located 1/4 mile south of the intersection of Minnesota Highway 40 and 130th Avenue Northeast, just inside Chippewa County, looking south-southeast.

Thunderstorms that developed across southeast South Dakota Wednesday morning, May 29th, moved east-northeast into west central Minnesota. As the complex of thunderstorms moved into west central Minnesota, a few small hail stones were reported around Canby, and Montivideo. These thunderstorms moved east and developed into a small bow echo and produced 58 mph winds southwest of New London, Minnesota, and a 62 mph wind gust at Willmar.

Stearns County 1 SSW St Cloud 31 0015CST 0 0 50.00K 0.00K Lightning

A lightning strike caused an electrical fire at a home in St. Cloud, Minnesota during the early morning hours of Friday, May 31st. Damage was significant, but the home was not occupied at the time of the fire.

273 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MINNESOTA, Central and South Central

A lightning strike caused an electrical fire at a home in St. Cloud, Minnesota during the early morning hours of Friday, May 31st. Damage was significant, but the home was not occupied at the time of the fire.

Anoka County 2 WSW Centerville 31 1258CST 0 0 0.00K 0.00K Hail (1.00)

Anoka County 1 SE Circle Pines 31 1300CST 0 0 0.00K 0.00K Hail (0.88)

Ramsey County 1 NNW Falcon Hgts 31 1305CST 0 0 0.00K 0.00K Hail (1.25)

Half Dollar size hail was reported at the intersection of 35W and County Road C in Roseville.

Ramsey County 1 S Falcon Hgts 31 1305CST 0 0 0.00K 0.00K Hail (0.75)

Hail was observed at the University of Minnesota, St. Paul Campus.

Ramsey County 1 SW Falcon Hgts 31 1305CST 0 0 0.00K 0.00K Hail (1.25)

Half Dollar size hail was reported near the intersection of Como Avenue and Eustice Street in St. Paul.

Ramsey County 1 E Lauderdale 31 1305CST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail was reported near Highway 280 and Energy Park Drive in St. Paul.

Ramsey County 1 NNE Falcon Hgts 31 1309CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported near the Roseville City Hall.

Ramsey County 1 N Arden Hills 31 1310CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported in northern Arden Hills. Ramsey County 1 SW Shoreview 31 1312CST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail was reported in southern Shoreview. Ramsey County Shoreview 31 1314CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported near Shoreview. Ramsey County 1 N Shoreview 31 1315CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported in northern Shoreview. Ramsey County 1 SW North Oaks 31 1315CST 0 0 0.00K 0.00K Hail (0.75)

Dime size hail was reported in east central Shoreview.

274 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MINNESOTA, Central and South Central Hennepin County 2 ENE Bloomington 31 1353CST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail was reported in Bloomington at 95th Street and Garfield.

Hennepin County 1 SW Edina 31 1359CST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail was reported in Edina, just west of Highways 62 and 100.

Anoka County 2 ENE East Bethel 31 1400CST 0 0 0.00K 0.00K Hail (0.75)

Hennepin County 1 SW Edina 31 1400CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported at 76th Street and France Avenue in Edina.

Hennepin County 2 SW Richfield 31 1400CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported at Highway 494, and Nicollet Avenue in Richfield.

Hennepin County 3 S Minneapolis 31 1407CST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail was reported in South Minneapolis at 24th Street, and Lyndale.

Hennepin County 2 SSE Minneapolis 31 1412CST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail was reported at 6th Street and Marquette in Minneapolis.

Chisago County 1 S North Branch 31 1417CST 0 0 0.00K 0.00K Hail (0.88)

Chisago County 1 S North Branch 31 1453CST 0 0 0.00K 0.00K Hail (1.00)

The afternoon of Friday, May 31st, thunderstorms developed over the Twin Cities Metro Area, and moved northward between Minneapolis and St. Paul. Numerous reports of penny and nickel size hail fell in the Twin Cities, with locally half dollar size hail in some parts. This area of thunderstorms moved into west central Wisconsin during the late afternoon.

MINNESOTA, Northeast St. Louis County 1 NE Saginaw 31 1358CST 0 0 Hail (0.75)

St. Louis County 2 ENE Missabe Jct 31 1445CST 0 0 Hail (0.75)

There were thunderstorms during the afternoon of May 31st over northeast Minnesota which resulted in a couple of penny size (0.75 inch) hail reports.

275 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MINNESOTA, Northwest Beltrami County 4 NW Debs 01 0000CST 1 S Funkley 04 1249CST 0 0 5.00K 0.00K Flood

Clearwater County 15 NNW Berner 01 0000CST 04 1249CST 0 0 5.00K 0.00K Flood

Melting snow caused overland flooding across portions of northeast North Dakota. Many rural roads were closed due to high water from the melting snow. Clay County 2 NW Sabin 14 0553CST 0 0 0.00K Thunderstorm Wind (56MG) Note: The measured wind gust of 56 knots is equivalent to 64 mph.

Becker County Lake Park 14 0613CST 0 0 0.00K Thunderstorm Wind (61MG)

The wind gust was measured by a MNDOT RWIS sensor along U. S. Highway 10.

Strong winds were associated with a line of thunderstorms that began near Jamestown, North Dakota, and tracked eastward through the Fargo/Moorhead and Dilworth, Minnesota, areas. Note: The measured wind gust of 61 knots is equivalent to 70 mph. Becker County 7 NE Tamarac Refuge 18 1825CST 0 0 0.00K Hail (1.00)

Becker County 6 NW Pine Pt Agency 18 1833CST 0 0 0.00K Hail (0.75)

Polk County 1 N Lengby 18 2214CST 0 0 0.00K Hail (1.00)

Polk County 3 NW Rindal 18 2245CST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)

Several pine and poplar trees were snapped off near the ground or had large four to six inch diameter branches broken off.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Norman County 1 S Flaming 18 2305CST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)

Several pine and poplar trees were either snapped off near the ground or had large four to six inch diameter branches broken off. Several thunderstorms formed during the evening of May 18th and produced sporadic reports of hail and strong winds. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Clay County 3 NW Ulen 30 0400CST 2100CST 0 0 15.00K 0.00K Flood

Heavy rains overwhelmed the city lift station and produced widespread street flooding through the early morning. Some water got into structures like garages and outbuildings. Clay County 5 NW Averill 30 0400CST 2100CST 0 0 15.00K 0.00K Flood

Portions of township roads and several sections of farmland were flooded across northern Spring Prairie and southern Flowing townships. Three to six inches of rain fell in a short amount of time.

276 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MINNESOTA, Northwest Norman County 2 NW Syre 30 0400CST 0800CST 0 0 5.00K 0.00K Flood

Several sections of farm fields and portions of township roads were flooded.

Slow moving thunderstorms dropped heavy rain over portions of south central Norman and Clay counties. Most rainfall reports ranged from two to four inches, but there were several spots of five to seven inches. This caused several roads to be shut down due to high water levels.

MINNESOTA, Southeast

MNZ079-086>088- Dodge - Fillmore - Mower - Olmsted - Wabasha - Winona 094>095 01 1845CST 02 2015CST 0 0 120.0K 0.00K Heavy Snow

A narrow but intense band of snow set up across portions of southeast Minnesota during the evening hours of May 1st and continued into the 2nd. While all of southeast Minnesota ended up receiving some snow from this system, snow was heaviest in a band between Mason City, Iowa and Menomonie, WI where over 10 inches fell. Amounts exceeded 15 inches over portions of Olmsted and Dodge Counties. New Minnesota state snowfall records for the month of May were established with a one day total of 15.4 inches on May 2nd and two day total of 17.2 on May 2nd and 3rd in Dodge Center (Dodge County). Other notable snowfall totals were 16.6 inches just west of Rochester (Olmsted County) and 14 inches in Grand Meadow (Mower County). The heavy wet snow caused several power outages to occur, as 10,000 customers in Rochester lost power while over 1,700 customers were without power across parts of Mower, Dodge, Fillmore, Wabasha, Winona and rural Olmsted Counties. The weight of the snow caused some buildings and barns to collapse and hundreds of trees across the region were damaged. Numerous schools across southeast Minnesota canceled classes and the Minnesota DOT did not recommend travel on Interstate 90 east of Albert Lea and on state highways.

Mower County 1 NE Grand Meadow 19 1500CST 2313CST 0 0 0.00K 0.00K Heavy Rain

The COOP observer in Grand Meadow reported 2.21 inches of rain.

Mower County 3 N Racine 19 1510CST 0 0 5.00K 0.00K Thunderstorm Wind (55EG)

Around 30 large pine trees were blown down south of Stewartville.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Olmsted County 1 E (RST)Rochester Muni 19 1519CST 0 0 2.00K 0.00K Thunderstorm Wind (52MG)

The automated weather observing equipment at the Rochester International Airport measured a wind gust of 60 mph. There were also reports from the northwest side of Rochester of power outages and debris blown onto area streets. Some trees were blown down with at least one landing on a car breaking the back window. Around 5,000 customers in Rochester lost power because of the storm. Note: The measured wind gust of 52 knots is equivalent to 60 mph. Fillmore County Spring Vly 19 1523CST 0 0 8.00K 0.00K Thunderstorm Wind (50EG)

On a farm near Spring Valley, 38 trees were either uprooted or snapped off.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Fillmore County Fillmore 19 1545CST 2100CST 0 0 0.00K 0.00K Heavy Rain

The automated mesonet reporting equipment in the town of Fillmore reported 2.39 inches of rain.

277 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MINNESOTA, Southeast Olmsted County 1 E Dover 19 1600CST 20 0102CST 0 0 0.00K 0.00K Heavy Rain

The automated mesonet reporting equipment in Dover reported 2.52 inches of rain.

Winona County 1 E St Charles 19 1622CST 0 0 20.00K 0.00K Thunderstorm Wind (55EG)

Power lines and trees were blown in St. Charles. The strong winds also damaged a building of a local agricultural business.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Winona County 2 NNE St Charles 19 1623CST 0 0 40.00K 0.00K Thunderstorm Wind (55EG) 4 SSW Elba Damage to buildings occurred from about 2 miles north of St. Charles to 4 miles north of St. Charles. Large trees were blown down along with a pole barn and corn cribs. Six foot long sections of tin were ripped off other buildings and some one inch hail also fell. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Mower County 2 WNW Le Roy 19 1752CST 2200CST 0 0 0.00K 0.00K Flash Flood

Water from a branch of the Upper Iowa River was flowing over State Highway 56 west of Le Roy.

Winona County 1 NW Fremont 19 1813CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Wind gusts from a line of thunderstorms caused a semi truck to jack knife on Interstate 90 southwest of Lewiston.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Winona County 1 E Lewiston 19 1821CST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)

Trees were blown down and one inch hail fell in Lewiston. One of the large trees blown down fell across U.S. Highway 14 with both lanes blocked for about 15 minutes. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Winona County 1 SE Lewiston 19 1821CST 0 0 0.00K 0.00K Thunderstorm Wind (64MG)

Wind gusts of 65 to 74 mph occurred south of Lewiston. Note: The measured wind gust of 64 knots is equivalent to 74 mph. Winona County Rollingstone 19 1835CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down in Rollingstone, temporarily blocking traffic on South Main Street.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Winona County Rollingstone 19 1840CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Vehicles and a deck were damaged when large tree branches landed on them.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Winona County 1 W Winona 19 1840CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)

A 62 mph wind gust occurred in Winona. Note: The measured wind gust of 54 knots is equivalent to 62 mph.

278 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MINNESOTA, Southeast Mower County 3 NW Adams 19 1949CST 20 0040CST 0 0 10.00K 0.00K Flash Flood

Sandbagging occurred in Adams and County Roads 4 and 7 near Adams were closed as water from several branches of the Little Cedar River were out of their banks. Flood waters covered much of the business district in Adams with little damage occurring to those that were able to sand bag. For those that didn't, water reached into the buildings creating minor damage.

Fillmore County 8 S Ostrander 19 2000CST 3 SE York 20 0010CST 0 0 20.00K 0.00K Flash Flood

Heavy rains across the western sections of Fillmore County caused numerous roads to be closed and basement flooding to occur in Spring Valley. The high water stranded several heads of cattle in the Wykoff and Fillmore areas.

Mower County 4 W Elkton 19 2100CST 20 0130CST 0 0 30.00K 0.00K Flash Flood

Flood waters from Rose Creek inundated Jellystone Campground east of Austin. A pedestrian bridge was severely damaged. The majority of the campers and RVs in the park were moved to safety, but a few vehicles did suffer some water damage. Highway shoulders in the area were washed out and some secondary roads were closed by the high water.

Winona County 5 NNW St Charles 19 2220CST 20 0445CST 0 0 0.00K 0.00K Flood

Runoff from heavy rains pushed the Whitewater River out of its banks in the Whitewater State Park. The river crested less than a half foot over the flood stage at 13.9 feet. Mower County 1 NW Austin 20 0225CST 1130CST 0 0 0.00K 0.00K Flood

Runoff from heavy rains pushed Dobbins Creek out of its banks in Austin. The creek crested a foot and a half above the flood stage at 13.01 feet. Fillmore County 1 SSW Preston 20 1240CST 1700CST 0 0 0.00K 0.00K Flood

Runoff from heavy rains pushed the South Branch of the Root River out of its banks in Preston. The river crested just over a foot above the flood stage at 938.07 feet. Houston County Houston 21 0705CST 22 0235CST 0 0 0.00K 0.00K Flood

Runoff from heavy rains pushed the Root River out of its banks near Houston. The river crested a foot and a half above the flood stage at 16.52 feet. Several rounds of thunderstorms rolled across southeast Minnesota during the afternoon and evening of May 19th. The first round of storms produced wind damage from the northeast corner of Mower County into Winona and Wabasha Counties during the afternoon. The second round of storms produced additional wind damage across primarily Winona County later that evening. In addition, the heavy rain from these repeated storms caused flash flooding to occur near Le Roy and Adams (Mower County) as water from streams flowed over several roads that prompted sandbagging. Other flash flooding near Rose Creek (Mower County) caused significant flooding at a campground.

Mower County 1 SE Le Roy 29 1338CST 1408CST 0 0 0.00K 0.00K Heavy Rain

In Le Roy, 1.1 inches of rain fell in about 30 minutes.

279 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MINNESOTA, Southeast Fillmore County Cherry Grove 29 1354CST 0 0 6.00K 0.00K Thunderstorm Wind (59MG)

A roof was damaged and tree limbs blown down by a 68 mph wind gust in Cherry Grove. Just south of town, a storage shed was destroyed and shingles were blown off a garage. Note: The measured wind gust of 59 knots is equivalent to 68 mph. Fillmore County Preston Fllmr Arpt 29 1406CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

The automated weather observing equipment at the Preston airport measured a wind gust of 58 mph.

Note: The measured wind gust of 50 knots is equivalent to 58 mph. Fillmore County 1 S Fountain 29 1410CST 0 0 2.00K 0.00K Thunderstorm Wind (58EG)

A tin roof was blown off a structure in Fountain. Note: The estimated wind gust of 58 knots is equivalent to 67 mph. Winona County 1 W Altura 29 1441CST 0 0 0.00K 0.00K Hail (0.75)

Houston County 1 NE River Jct 29 1520CST 1920CST 0 0 0.00K 0.00K Heavy Rain

In La Crescent, 2.23 inches of rain fell. Houston County 3 ENE Sheldon 29 1600CST 4 N Caledonia 2000CST 0 0 0.00K 0.00K Flash Flood

Heavy rain pushed Badger Creek out of its banks causing water to flow over State Highway 76 north of Caledonia.

Thunderstorms developed during the afternoon of May 29th in a warm and moist airmass behind a warm front that was moving north across the Upper Midwest. These storms produced wind damage across Fillmore County and some flash flooding in Houston County. A 68 mph wind gust occurred in Cherry Grove (Fillmore County) where roof damage was done and a storage shed was destroyed. The rain pushed some streams out of their banks forcing water to go over State Highway 76 north of Caledonia (Houston County). Wabasha County Plainview 31 1405CST 0 0 0.00K 0.00K Hail (0.88)

Olmsted County 1 N Eyota 31 1408CST 0 0 0.00K 0.00K Hail (0.75)

Wabasha County 2 ESE Conception 31 1413CST 0 0 0.00K 0.00K Hail (1.75)

Golf ball sized hail fell between Kellogg and Plainview. Wabasha County 2 WSW Wabasha 31 1422CST 0 0 0.00K 0.00K Hail (0.75)

Olmsted County 3 NNE (RST)Rochester Muni 31 1955CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell and there was also a 57 mph wind gust south of Rochester.

Olmsted County 1 NW Stewartville 31 2011CST 0 0 0.00K 0.00K Hail (0.75)

280 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MINNESOTA, Southeast Olmsted County Marion 31 2034CST 0 0 0.00K 0.00K Hail (1.50)

Up to half dollar sized hail fell in Marion. Olmsted County 1 NE Simpson 31 2035CST 0 0 0.00K 0.00K Hail (1.75)

Golf ball sized hail fell southeast of Rochester. Olmsted County 3 S Rochester 31 2035CST 0 0 5.00K 0.00K Lightning

Lightning struck a tree on the southwest side of Rochester causing a nearby natural gas line to start on fire. Firefighters cooled the fire until the utility company clamped off the gas line.

Olmsted County 2 WSW Pleasant Grove 31 2037CST 0 0 0.00K 0.00K Hail (0.88)

Olmsted County 1 W Predmore 31 2040CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail covered the ground in Predmore. Olmsted County 1 W Laird 31 2045CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell southwest of Eyota. Winona County 1 W Altura 31 2121CST 0 0 0.00K 0.00K Hail (0.75)

Mower County Le Roy 31 2144CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail just outside of Le Roy. Fillmore County Whalan 31 2145CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

An estimated 60 mph wind gust occurred in Whalan. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Olmsted County 1 W Chester 31 2205CST 2359CST 0 0 25.00K 0.00K Lightning

Lightning struck a house on the southeast side of Rochester causing a fire in the attic. The fire was quickly put out but extensive damage was done to the roof and attic. Multiple rounds of thunderstorms moved across southeast Minnesota during the afternoon and evening of May 31st. These storms developed in a complex surface pattern across the Upper Midwest as a pre-frontal surface trough, dry line and cold front all passed through the area. The storms primarily produced large hail, although there were also some wind gusts around 60 mph. The largest hail reported was golf ball sized near Kellogg (Wabasha County) and around Rochester (Olmsted County).

MINNESOTA, Southwest

MNZ089-090 Jackson - Nobles 01 0100CST 0 0 0.00K 0.00K Winter Weather 02 Wet snow, mixed with rain at times, accumulated 3 to 6 inches in Nobles and Jackson Counties of southwest Minnesota.

281 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MINNESOTA, Southwest Cottonwood County 2 WNW Jeffers 17 1431CST 1531CST 0 0 0.00K 0.00K Heavy Rain

Rainfall of 2.20 inches was measured in one hour. Cottonwood County 2 ESE Storden 17 1520CST 0 0 0.00K 0.00K Hail (1.00)

Cottonwood County 2 WNW Jeffers 17 1530CST 0 0 0.00K 0.00K Hail (0.75)

Cottonwood County 4 W Delft 17 1535CST 0 0 0.00K 0.00K Hail (0.75)

Cottonwood County 2 SW Windom Muni Arpt 17 1608CST 0 0 0.00K 0.00K Hail (1.00)

Cottonwood County 4 WSW Windom Muni Arpt 17 1610CST 1622CST 0 0 Hail (1.50)

Large hail damaged vehicles, siding, roofs, and cracked windows. Minor crop damage was also suspected. The amount of damage was not known. Cottonwood County 2 WNW Windom 17 1615CST 0 0 Hail (1.75)

Large hail damaged vehicles, siding, roofs, and cracked windows. Minor crop damage was also suspected. The amount of damage was not known. Cottonwood County 4 W Windom Muni Arpt 17 1620CST 1640CST 0 0 Hail (1.50)

Large hail damaged vehicles, siding, roofs, and cracked windows. Minor crop damage was also suspected. The amount of damage was not known. Cottonwood County 1 W Windom 17 1620CST 0 0 Hail (1.25)

Large hail damaged vehicles, siding, roofs, and cracked windows. Minor crop damage was also suspected. The amount of damage was not known. Cottonwood County Windom Muni Arpt 17 1620CST 0 0 Hail (1.75)

Large hail damaged vehicles, siding, roofs, and cracked windows. Minor crop damage was also suspected. The amount of damage was not known. Cottonwood County Windom 17 1622CST 0 0 Hail (1.50)

Large hail damaged vehicles, siding, roofs, and cracked windows. Minor crop damage was also suspected. The amount of damage was not known. Cottonwood County 4 W Windom 17 1625CST 0 0 Hail (1.00)

Large hail damaged vehicles, siding, roofs, and cracked windows. Minor crop damage was also suspected. The amount of damage was not known.

282 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MINNESOTA, Southwest Cottonwood County 3 SE Windom 17 1630CST 1640CST 0 0 Hail (1.00)

Large hail damaged vehicles, siding, roofs, and cracked windows. Minor crop damage was also suspected. The amount of damage was not known. Cottonwood County 1 E Windom 17 1630CST 0 0 Hail (1.00)

Large hail damaged vehicles, siding, roofs, and cracked windows. Minor crop damage was also suspected. The amount of damage was not known. Cottonwood County 5 SSE Windom 17 1630CST 1650CST 0 0 Hail (1.25)

Large hail damaged vehicles, siding, roofs, and cracked windows. Minor crop damage was also suspected. The amount of damage was not known. Cottonwood County 4 W Windom 17 1630CST 1650CST 0 0 Hail (1.00)

Large hail damaged vehicles, siding, roofs, and cracked windows. Minor crop damage was also suspected. The amount of damage was not known. Cottonwood County 2 NW Windom 17 1635CST 0 0 Hail (1.00)

Large hail damaged vehicles, siding, roofs, and cracked windows. Minor crop damage was also suspected. The amount of damage was not known. Cottonwood County Windom 17 1640CST 0 0 Hail (2.00)

Large hail damaged vehicles, siding, roofs, and cracked windows. Minor crop damage was also suspected. The amount of damage was not known. Cottonwood County 4 W Windom 17 1642CST 0 0 Hail (1.75)

Large hail damaged vehicles, siding, roofs, and cracked windows. Minor crop damage was also suspected. The amount of damage was not known. Cottonwood County Windom 17 1645CST 0 0 Hail (2.00)

Large hail damaged vehicles, siding, roofs, and cracked windows. Minor crop damage was also suspected. The amount of damage was not known. Cottonwood County 5 WSW Windom 17 1645CST 1647CST 0.5 50 0 0 0.00K 0.00K Tornado (EF0)

A brief tornado caused no reported damage. Jackson County 2 S Miloma 17 1710CST 1712CST 0.5 50 0 0 0.00K 0.00K Tornado (EF0)

A brief tornado caused no reported damage. Jackson County 4 ESE Miloma 17 1730CST 0 0 0.00K 0.00K Hail (1.00)

Thunderstorms produced large hail at numerous locations in Cottonwood and Jackson Counties in southwest Minnesota on the late afternoon of May 17th. There were also two tornadoes reported, though no damage was reported with either.

283 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MINNESOTA, Southwest Rock County 1 E Hills 30 2029CST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail was accompanied by heavy rain. A thunderstorm produced penny size hail at Hills in Rock County in southwest Minnesota on the evening of May 30th.

MISSISSIPPI, Central

MSZ043 Madison 03 0915CST 0 0 1.0K 0.00K Strong Wind Gusty winds occurred behind a cold front which pushed through the region. One tree was downed as a result of these winds.

Warren County 2 SSE Vicksburg 10 0345CST 0 0 75.00K 0.00K Lightning

Lightning struck a house causing a fire. Jefferson County 3 SSW Fayette 10 0430CST 1 E Stampley 0515CST 0 0 5.00K 0.00K Flash Flood

A portion of Highway 61 had water crossing it. A series of disturbances pushed through the region, resulting in the development of showers and thunderstorms. Some of these storms produced frequent lightning and flash flooding.

Grenada County 2 ENE Sweet Home 17 1115CST 2 SE Futheyville 1200CST 0 0 20.00K 0.00K Flash Flood

Water was close to entering homes along Shelby Chapel Road, as well as in Perry Estates. A family was rescued from their home on Shelby Chapel Road. Water was also covering a portion of Highway 51 south of Grenada, and a portion of Long Street was caved in due to flooding.

Clay County 4 NNE Bigsprings 18 0328CST 0 0 0.00K 0.00K Hail (1.75)

Showers and thunderstorms developed in association with an upper low just north of the area. Some of these storms produced large hail and flash flooding. Washington County 1 NW Greenville 21 1750CST 0 0 25.00K 0.00K Thunderstorm Wind (50EG)

A large tree was blown down, and a few power poles were snapped at the intersection of Washington Ave and Stallings St.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Sunflower County 1 E Inverness 21 2110CST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)

Power lines were blown down all around Inverness. Several power outages occurred in the area.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Grenada County 1 E Grenada 21 2140CST 0 0 20.00K 0.00K Thunderstorm Wind (50EG)

Trees and power lines were blown down in the city of Grenada, as well as throughout the county.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Carroll County 1 E Jefferson 21 2143CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

Several trees were blown down around Jefferson. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

284 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSISSIPPI, Central Carroll County 1 S Coila 21 2148CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)

Several trees were blown down south of Coila. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Warren County 2 SSE Vicksburg 21 2155CST 0 0 100.00K 0.00K Thunderstorm Wind (60EG)

Over twenty trees were blown down around Vicksburg, and in several other areas around the county. The roof of a business was blown off at Washington St and Belmont, and the roof of a home was blown off in the area.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Holmes County Lexington 21 2210CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

A big limb was blown onto power lines. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Yazoo County 4 SW Oil City 21 2210CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down on Anding Oil, City Road and Highway 433. A tree also fell on the fence at a residence on Highway 433. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Montgomery County 1 E Winona 21 2215CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

A few trees were blown down along Highway 407. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Hinds County 2 WNW Utica 21 2225CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

A couple of trees were blown down northwest of Utica. One of them was blown down along Highway 27 near the Natchez Trace due to an outflow boundary. Some power lines were blown down in Edwards as well.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Madison County 1 E Flora 21 2225CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

A tree was blown down on Cox Ferry Road just west of Highway 49.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Montgomery County 2 SSE Kilmichael 21 2230CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

A few trees were blown down along Highway 413 southeast of Kilmichael.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Hinds County 2 SSW Longaloo 21 2245CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

A tree was blown down on west County Line Road. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Madison County 2 SSW Sharon 21 2250CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down on Highway 16, and also on Sharon Road close to Brooks Road near Canton.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

285 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSISSIPPI, Central Webster County 3 WSW Walthall 21 2257CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

A few trees were blown down across Mount Vernon Road. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Choctaw County 1 S Ackerman 21 2320CST 0 0 4.00K 0.00K Thunderstorm Wind (50EG)

A few trees and a power line were blown down in Ackerman. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Leake County 1 N Carthage 21 2320CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Trees and power lines were blown down in Carthage along Highway 35.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Rankin County 2 SSW Montery 21 2325CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Trees and power lines were blown down near Star and Pelahatchie. A tree was blown onto a house on 520 Sunny Circle near Star. A line of severe storms associated with an advancing cold front moved across the region. A few storms caused wind damage in the form of blown down trees and power lines. Some of these trees fell on structures. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Bolivar County Cleveland 29 1605CST 0 0 1.00K 0.00K Thunderstorm Wind (43EG)

A branch from a tree was broken off that damaged a nearby window.

Note: The estimated wind gust of 43 knots is equivalent to 49 mph. Washington County 1 S Greenville 30 1900CST 0 0 30.00K 0.00K Thunderstorm Wind (50EG)

Multiple trees were blown down around Greenville. There was enough instability and low level moisture for an isolated severe storm to develop around Greenville on the 30th. Another storm developed on the 29th near Cleveland. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

MISSISSIPPI, North Pontotoc County 1 SE Pontotoc Co Arpt 18 0530CST 1 N Pontotoc 0600CST 0 0 0.00K 0.00K Flash Flood

Heavy rain produced flash flooding in Pontotoc. Several streets were covered with water as a result.

A stationary front remained across Northern Mississippi during the early morning hours of May 18th, 2013. The front was a source of continuous development of convection. As a result, heavy rain fell in portions of North Mississippi which produced flash flooding. Prentiss County 2 NE Hazeldell 21 1340CST 1350CST 0 0 0.00K Hail (0.75)

Penny size hail fell about 12 miles southeast of Booneville.

De Soto County 3 WNW Horn Lake Desoto Arp 21 1535CST 3 WNW Aldens 2200CST 0 0 1.00M 0.00K Flash Flood

286 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSISSIPPI, North

Heavy rain produced flash flooding in Horn Lake and Southaven. A rain gauge at a spotter's home measured 4.29 inches over a period of 4 hours. Over 100 homes and businesses were affected by the flooding. Some of the homes in the Desoto Village subdivision had up to two feet of water in them. Along Goodman Road near Malone, homes and businesses had up to three feet of water standing in them. Many roads and intersections were closed due to the flooding including Highway 51 just south of State Line Road. Local proclamations of disasters were made to the governor as a result of the flooding.

Panola County Batesville 21 1735CST 1 S Batesville Panola Ar 1810CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked numerous trees and power lines down across Panola County. At least four homes were damaged from fallen trees. Fifteen roads were closed due to fallen trees. Numerous power outages occured as a result.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Panola County 2 WNW Courtland 21 1830CST 2 WNW Batesville 2200CST 0 0 100.00K 0.00K Flash Flood

Heavy rain produced flash flooding in Batesville. Six businesses reported anywhere from six inches to a foot of standing water in them. Tallahatchie County Charleston 21 1930CST 1935CST 0 0 0.00K Thunderstorm Wind (58MG)

Straight line winds of 67 mph were measured just north of Charleston. Several trees were knocked down in the area.

Note: The measured wind gust of 58 knots is equivalent to 67 mph. Yalobusha County 3 N Bruce Jct 21 1959CST 2004CST 0 0 0.00K Hail (1.00)

Quarter size hail fell just north of Coffeeville. Lafayette County Oxford 21 2210CST Tula 2245CST 0 0 0.00K Thunderstorm Wind (52EG)

Straight line winds estimated at 60 mph occurred between Oxford and Tula. Numerous trees and power lines were knocked down in the region. At least six streets were blocked by fallen trees in Oxford.

An upper trough and an associated cold front moved into the Lower Mississippi Valley during the evening of May 21st, 2013. Several rounds of showers and thunderstorms developed ahead of the system affecting the Mid-South. Some storms became severe producing large hail, damaging winds, and flash flooding. The first round of storms moved through during the morning hours while a second round affected the region during the afternoon into the evening. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Lafayette County 2 SE Oxford 30 1610CST 1620CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked down a tall light pole and fence at the Lafayette County High School football field. Several trees and power lines were knocked down across Oxford causing the closure of four roads including Highway 6 for a brief time.

An upper level disturbance moving through the Mid-South interacted with a moist and unstable airmass to produce scattered thunderstorms during the afternoon and evening hours of May 30, 2013 . A few of the storms became severe with large hail and damaging winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

287 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSISSIPPI, South Harrison County 1 NE Wool Market 01 1746CST 1900CST 0 0 100.00K 0.00K Flash Flood

Heavy rain in Harrison County resulted in flash flood of roadways and low lying areas across east and southeast portions of the county. Harrison County Emergency Manager reported that Road 106 off of Lamey Bridge was closed due to flash flooding, as well as Boney Avenue off of D'Iberville Boulevard. Daily rainfall of approximately 5 inches of rainfall was recorded at cooperative observer site near Biloxi.

Jackson County Gautier 01 1820CST 0 0 0.00K 0.00K Hail (1.00)

The Sun Herald newspaper reported quarter size hail in Gautier.

Jackson County 4 SSE Vancleave 01 1830CST 5 ESE Big Pt 2030CST 0 0 1.50M 0.00K Flash Flood

Heavy rainfall of 7 to 8 inches resulted in flash flooding across portions of Jackson County. The Pascagoula Airport recorded slightly more than 7 inches of rain during the day. Many roadways and some homes were flooded. Emergency response crews rescued 20 people from flooded cars and 70 people were evacuated from Moss Point neighborhoods which flooded. Several residents were also rescued from flooded neighborhoods in Pascagaoula. In Gautier, two businesses and six homes flooded. Damage to county roads was estimated around $1.5 million. Evacuations occurred in portions of Moss Point due to flooding of a bayou and drainage canals.

A slow moving upper low over southern Louisiana fueled the development of numerous thunderstorms across the area. Several reports of flooding were received along the Mississippi Gulf Coast, as up to 8 inches of rain fell across the area. Total damage to roads across Jackson County Mississippi due to flash flooding was estimated at $1,500,000.

Pearl River County 2 N Picayune 10 0620CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

A few tree limbs and power lines were blown down. Event time was estimated based on radar.

Several waves of low pressure moved across southern Louisiana during the 10th and 11th. One report of wind damage was received in south Mississippi. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

MISSISSIPPI, Southeast George County Lucedale 01 1700CST 5 N Shipman 1900CST 0 0 0.00K 0.00K Flash Flood

Heavy rains caused three feet of water to cover the road at Highway 198 West and railroad overpass.

George County 1 E Lucedale 01 1700CST 1900CST 0 0 0.00K 0.00K Flash Flood

Heavy rains caused water to cover the intersection of Highway 26 West and Fig Farm Road.

Thunderstorms developed across the area and produced large hail and very heavy rain which caused flooding.

MISSOURI, East Marion County 2 E West Quincy 01 0000CST 4 E Huiskamp 31 2359CST 0 0 1.00K 5.00K Flood

The Mississippi continued in flood along the border of Marion County through May. The river started at major flood levels, dropped some in the middle of the month, but then rose again to major levels at the end of May. The flood wall in Hannibal kept the tourist areas nice and dry. Damage was limited to some closed roads and flooded farmland.

288 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, East Pike County 11 NNW Hope 01 0000CST 5 ENE Annada 31 2359CST 0 0 5.00K 10.00K Flood

The Mississippi River remained in flood through May along the border of Pike County. The river started at major flood levels, dropped some into the middle of the month, then rose again to major levels at the end of May. The town most affected was Clarksville. Sandbagging efforts by the National Guard and volunteers were successful in keeping the downtown area mostly dry. The Mississippi River remained in flood through the month of May along the border of Marion and Pike counties. The river started at major flood levels, dropped to minor flooding by the middle of the month, but then rose to major levels again at the end of May. The flood wall in Hannibal kelp the major tourist areas in the city nice and dry. Damage was limited to some closed roads and flooded farmland.

Marion County 2 SW Hannibal 15 2135CST 0 0 0.00K 0.00K Hail (1.25)

A cold front was moving through the region, triggering showers and thunderstorms. Some of the thunderstorms produced hail.

Lewis County La Belle 19 1525CST 0 0 0.00K 0.00K Hail (1.00)

Franklin County 2 S Boles 20 0207CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds snapped off four power poles along Old Highway 100, near intersection with Highway T.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. St. Charles County 2 N Defiance 20 0215CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down several trees near the intersection of Highway 94 and Highway DD.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. St. Louis County 1 SSW Chesterfield 20 0229CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds blew over a few trees. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. St. Louis County Creve Coeur 20 0238CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds snapped off a tree. Also, there was minor roof and gutter damage to one house.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. St. Louis County 1 SE Musicks Ferry 20 0243CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down several trees and power lines. One tree was blocking New Halls Ferry Road near intersection with Douglas Road. A warm front lifted northward through the region during the day on May 19th. Storms developed along boundary as it lifted north. Then later a MCS developed over western Missouri and moved east across the state. There were several reports of damaging winds with this complex of storms through the early morning hours of May 20th. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Osage County 2 S Byron 20 1652CST 0 0 0.00K 0.00K Hail (1.75)

Monroe County 1 ENE Madison 20 1708CST 1718CST 0 0 0.00K 0.00K Hail (1.00)

289 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, East Boone County 2 E Columbia 20 1722CST 1 ENE Murry 1734CST 0 0 0.00K 0.00K Hail (1.50)

Large hail fell in a swath from the northeast side of Columbia to Murry. Some of the large hail caused minor damage to a few vehicles. Boone County 1 SW Centralia 20 1739CST 0 0 0.00K 0.00K Hail (0.88)

Audrain County 9 SW Thompson 20 1740CST 0 0 0.00K 0.00K Hail (1.00)

Monroe County 1 NNE Florida 20 1753CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several large tree limbs were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Ralls County 2 SSE Hassard 20 1808CST 3 E Hatch 1810CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

Thunderstorm winds blew down numerous large tree limbs along Highway J and Highway A.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Franklin County Union 20 1824CST 0 0 0.00K 0.00K Hail (1.00)

Marion County 2 ENE White Bear 20 1824CST 2 SSE Hannibal Muni Arpt 1826CST 1.16 50 0 0 0.00K Tornado (EF1)

A tornado touched down west southwest of Hannibal, damaging several trees and a structure about a mile south of the Hannibal Regional Medical Center, just northeast of the intersection of Centerville Road and County Road 420. The tornado then moved northeast and caused its most intense damage, low end EF-1, at the intersection of Centerville Road and Shinn Lane. In this area several large trees were either uprooted or snapped off halfway up the trunk. The tornado moved northeast to Highway MM where it tore about a quarter of the tin roof off of a farm building and damaged some trees. The tornado dissipated as it crossed Highway MM.

Marion County 2 SSE Hannibal Muni Arpt 20 1826CST 2 NNE Hannibal 1830CST 0 0 0.00K Thunderstorm Wind (87EG)

A line of severe thunderstorms moved through Hannibal. The storms caused considerable wind damage in and around Hannibal. The damage area was roughly from Highway MM north to Hannibal-LaGrange University. One building at the university had a small portion of its roof torn off. Numerous trees were either uprooted or snapped along Palmyra Road/Mark Twain Avenue. A three story brick building in downtown Hannibal on Main Street had a wall collapse and about half its roof torn off. Wind gusts in this area were likely around 100 mph. Tree damage was common west of the downtown area to U.S. Highway 61 and then west of U.S. Highway 61 along West Ely Road. The subdivisions around Pioneer Lake and Apollo Lake had numerous large tree branches blown down. One home near Apollo Lake had windows broken by flying debris. A small building lost part of its roof on the south side of Hannibal on Market Street.

Note: The estimated wind gust of 87 knots is equivalent to 100 mph. St. Charles County 1 SSW Lake St Louis 20 1835CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down several power lines at the intersection of Bryan Road and Mexico Road.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

290 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, East Moniteau County California 20 1905CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down a few large trees. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. St. Charles County Cottleville 20 1912CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down a large tree. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. St. Charles County Harvester 20 1917CST 1 NW St Charles 1920CST 0 0 0.00K 0.00K Hail (1.00)

There were several reports of one inch hail in St. Peters, Harvester and St. Charles.

Lincoln County 1 NE Chain Of Rocks 20 2035CST 1 WNW Old Monroe 21 0200CST 0 0 0.00K 0.00K Flash Flood

Up to three inches of rain fell in a short amount of time causing flash flooding. At the intersection of Highway C and Green Acres Drive, over a foot of water covered the road, so the road was closed for awhile.

St. Charles County 4 NNE Orchard Farm 20 2042CST 0 0 0.00K 0.00K Thunderstorm Wind (60MG) Note: The measured wind gust of 60 knots is equivalent to 69 mph.

St. Louis County 2 WNW Keyes Summit 20 2055CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds snapped a couple of large trees in Winchester.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. St. Charles County 2 WSW All Saints Vlg 20 2100CST 2 SSW Kampville 21 0200CST 0 0 0.00K 0.00K Flash Flood

Up to 5 inches of rain fell in a short amount of time causing flash flooding. Several roads were flooded including Highway N about a mile east of intersection with Highway K. Highway 94 had over 10 inches of water over it near intersection with First Capitol Drive. Several cars became stuck in the water at the intersection.

St. Louis County Olivette 20 2112CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Iron County 1 W Viburnum 20 2139CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down a 10 inch diameter tree across Highway 49, just northwest of Viburnum.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Washington County 1 S Springtown 20 2140CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds blew down several large tree limbs just south of Potosi.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

291 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, East St. Francois County 1 ENE Bonne Terre 20 2150CST Esther 2200CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down numerous large tree limbs as well as several power lines in Bonne Terre and Park Hills.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. St. Francois County Farmington 20 2210CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down several power lines around town.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Iron County Ironton 20 2226CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down a two foot diameter tree. The tree then knocked down a nearby power line.

A line of severe storms moved through the region. There were numerous reports of large hail and damaging winds, as well as a couple of tornadoes and flash flooding. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

Lewis County 4 E Maywood 25 2111CST 31 2359CST 0 0 2.00K 5.00K Flood

Heavy rain caused the North Fabius River in Lewis County to rise quickly to major flood levels. The river rose out of its banks ojn the 25th and crested on the 31st. The river remained in flood into June. Damage was limited to some closed roads and flooded farmland. Boone County 2 ESE Midway 26 1813CST 3 WNW Columbia 1815CST 0 0 0.00K 0.00K Hail (1.00)

Thunderstorms developed along a warm front. Some of the storms produced large hail and very heavy rainfall.

Ralls County 2 N Ilasco 26 1815CST 5 ESE Saverton 31 2359CST 0 0 1.00K 5.00K Flood

The Mississippi River began May at major flood levels. It slowly fell to below flood stage on the 24th, but then rose again over flood stage on May 26th and hit major levels by the end of the month. Damage was limited to some flooded roads and farmland. Boone County 1 SW Midway 26 2015CST 2230CST 0 0 0.00K 0.00K Flash Flood

Up to four inches of rain fell in a short amount of time causing flash flooding. Several roads were flooded including U.S. Highway 40 between I-70 and Midway. Red Rock Road was washed out by the flood waters where it crosses Reeder Creek.

Thunderstorms developed along a warm front. Some of the storms produced large hail and very heavy rainfall.

Audrain County 7 SW Mexico 28 0305CST 0 0 0.00K 0.00K Hail (0.88)

A large thunderstorm complex moved east across the region during the early morning hours of May 28th. There were a few reports of hail with the storms. Marion County 3 E Helton 30 1530CST 2 N Hannibal 2200CST 0 0 0.00K 0.00K Flash Flood

Up to three inches of rain fell in a short amount of time causing flash flooding in the Hannibal and Palmyra areas. Several roads were flooded including the intersection of U.S. Highway 61 and Highway 168.

292 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, East Lincoln County Foley 30 1553CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down a one foot diameter tree as well as numerous tree limbs in Foley.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Madison County Fredericktown 30 1615CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG) 2 SE Stringtown Thunderstorm winds blew down several medium to large trees around Fredericktown.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Ralls County 1 ENE Ilasco 30 1645CST 2 ENE Rensselaer 2200CST 0 0 0.00K 0.00K Flash Flood

Up to three inches of rain fell in a short amount of time causing flash flooding. Bear Creek was running out of its banks and flooding a mobile home park on the south side of Hannibal just off of Warren Barrett Drive on Ledbetter Lane. Also, Highway 79 near intersection with Monkey Run Trail had water flowing over it.

Iron County 1 ENE Des Arc 30 1645CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down several large trees and power lines along County Road 163 just northeast of Des Arc.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Ste. Genevieve County 1 N Avon 30 1645CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down two large trees, partially blocking Highway F near intersection with Highway MM.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Ste. Genevieve County 1 N St Marys 30 1705CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds split a three foot diameter tree and blew down numerous large tree limbs around town.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. St. Louis County 1 SSW Fernridge 30 1739CST Breckenridge Hills 1741CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds blew down numerous large tree limbs. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. St. Charles County 3 NNE Orchard Farm 30 1755CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

Two large trees were blown down, which in turn knocked down a couple of power lines.

Note: The measured wind gust of 53 knots is equivalent to 61 mph. Moniteau County 2 E Tipton 31 0710CST California 0722CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down several large trees just east of Tipton and in California.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

293 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, East Cole County 2 SSW Jefferson City 31 0748CST 0757CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds snapped off several large trees across town. Also, some shingles were blown off of a house south of town.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Cole County Jefferson City 31 0755CST 0 0 0.00K 0.00K Hail (1.00)

Callaway County Wainwright 31 0805CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down a couple of trees which blocked both lanes of Highway 94 near Wainwright.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Boone County Easley 31 0830CST 2 NE Ashland 1230CST 0 0 0.00K 0.00K Flash Flood

Up to three inches of rain fell in a short amount of time causing flash flooding. Several roads were flooded including State Highway MM where it goes over Fox Hollow Branch. A strong storm system was approaching the region. Several rounds of thunderstorms moved through from the afternoon hours of May 30th through late morning on May 31st. There were numerous reports of damaging winds, large hail and flash flooding with these storms. A more significant round of storms moved through the region during the evening hours of May 31st.

MISSOURI, Lower Dunklin County 1 S Malden 21 1505CST 1510CST 0 0 0.00K Thunderstorm Wind (52MG)

Straight line winds were measured at 60 mph in Malden. Scattered tree limbs and power lines were knocked down. Some fell on a few houses and vehicles. An upper trough and an associated cold front moved into the Lower Mississippi Valley during the evening of May 21st, 2013. Several rounds of showers and thunderstorms developed ahead of the system affecting the Mid-South. Some storms became severe producing large hail, damaging winds, and flash flooding. The first round of storms moved through during the morning hours while a second round affected the region during the afternoon into the evening. Note: The measured wind gust of 52 knots is equivalent to 60 mph. MISSOURI, Northeast Clark County 1 S Wayland 19 1607CST 0 0 0.00K 0.00K Hail (1.00)

In addition, wind gusts were estimated to be over 50 mph from the west southwest and very heavy rain was observed.

Clark County 1 W Clark City 19 1611CST 0 0 0.00K 0.00K Hail (0.88)

Clark County Kahoka 19 2140CST 0 0 5.00K 0.00K Thunderstorm Wind (61EG)

Wind gusts estimated to be 70 mph uprooted some trees and blew down several 4 to 5 inch diameter branches in town.

294 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northeast

A very unstable airmass on May 19, 2013 led to the development of severe thunderstorms that produced large hail and damaging winds. Temperatures were in the 80s with dewpoints around 70 with a mid level speed maximum rotating around the base of a developing upper low in the Plains states. This increased the deep layer shear during the afternoon and evening hours. Some of the storms produced golf to baseball size hail and 70 to 80 mph winds. A trained spotter reported baseball size hail knocked out sky lights at the Walmart store in northeast Keokuk. Golfball to baseball size hail was reported on the north end of the city, with nickel to quarter size hail on the south end of the city. A downburst produced wind damage in Benton county from the county line 3.5 miles southeast of Blairstown to 2.8 miles southeast of Shellsburg. There was a mile wide swath of near continuous damage to farm outbuildings, tree branches and some power poles. The greatest damage was from 3 miles south of Newhall, where a machine shed and garage were completely destroyed, to about 3 miles northwest of Atkins, where significant damage occurred to outbuildings. The emergency manager in Buchanan county reported a downburst with winds more than 70 mph struck Independence, Iowa. The northwest side of town sustained the most damage with trees down, power poles snapped and signs blown down. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

Scotland County 1 NW Sand Hill 20 1714CST 1717CST 0 0 0.00K 0.00K Hail (1.00)

Hail fell for about two to three minutes ending around 617 pm CDT. The biggest hail was the size of a quarter.

Scotland County 2 N Sand Hill 20 1723CST 0 0 0.00K 0.00K Hail (1.50)

Clark County 7 WNW Chambersburg 20 1730CST 0 0 0.00K 0.00K Hail (1.00)

An occluding low pressure system was located across the eastern Dakotas on May 20, 2013. A cold front was approaching the area from the west during the evening hours, along with the nose of a mid level speed maximum arriving from northeast Kansas. A couple of storms produced ping pong size hail and winds over 80 mph.

Clark County 1 N Alexandria 29 2030CST 31 2359CST 0 0 0.00K 0.00K Flood

Heavy rains during the last week of May resulted in the Mississippi River at Keokuk, IA going above the major flood stage level of 19 feet during the evening of May 29th. It briefly fell about 1/4 of an inch below the major flood stage level during the early evening hours of May 30. It then rose above 19 feet and remained above it through the end of the month.

Heavy rains during the last week of May resulted in the Mississippi River at Keokuk to reach and exceed its major flood stage level on May 29th. Scotland County 1 S Memphis 30 1349CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Wind gusts were estimated to be 60 to 70 mph. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Scotland County 1 S Memphis 30 1350CST 0 0 100.00K 0.00K Thunderstorm Wind (61EG) Bible Grove Wind gusts estimated to be 70 mph produced heavy tree damage throughout Scotland County. Several outbuildings were damaged and about 30 power poles were snapped. The tree damage was mainly located between Bible Grove and Memphis. The time of this report was estimated using radar data. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Scotland County 1 S Memphis 30 1354CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

Wind gusts were estimated to be 80 mph. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Scotland County 1 S Memphis 30 1354CST 0 0 10.00K 0.00K Thunderstorm Wind (61EG)

Wind gusts estimated to be 70 mph uprooted a large tree near the courthouse. Several tree branches were also blown down throughout town. A power outage was also observed.

295 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northeast

A cold front pushing into a very moist and unstable airmass triggered numerous severe thunderstorms on May 30, 2013. Deep layer shear was moderate to strong and freezing levels were in the 11-12k foot level, which was ideal for large hail. The storms produced damaging winds, large hail and several weak tornadoes. An EF1 tornado touched down in Andalusia, IL around 445 pm CDT and traveled due north. This weak tornado crossed the Mississippi River and moved through eastern sections of Buffalo, IA. Wind speeds were estimated to be 95 mph. Some large trees were snapped and uprooted along the path. Some of the fallen trees fell onto houses. In extreme northeast Missouri, wind gusts estimated to be 70 mph produced heavy tree damage throughout Scotland County. Several outbuildings were damaged and about 30 power poles were snapped. The tree damage was mainly located between Bible Grove and Memphis. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

MISSOURI, Northwest

MOZ002-006-013> Caldwell - Carroll - Cass - Chariton - Clay - Clinton - Daviess - De Kalb - Grundy - Henry - Jackson - 016-021>024-029- Johnson - Lafayette - Linn - Livingston - Mercer - Nodaway - Putnam - Saline - Sullivan 031>032-037>039- 043>044-054 02 1500CST 03 0500CST 0 0 0.00K 0.00K Winter Weather

A strong cold front with unseasonably cold temperatures moved through the area during the day on May 2, 2013. An upper level storm system then passed across western Missouri, during the evening and overnight hours of May 2 and 3, 2013. Rain changed to snow across western Missouri, with the heaviest band, setting up from Bethany southwest through southeastern Kansas City. Snowfall amounts ranged from two to six inches in this band, with trace to two inches on either side.

Howard County New Franklin 15 1730CST 0 0 0.50K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds gusted up to 60 mph, with damage observed to a carport, that was lifted into the air and and blown down. A large tree was uprooted and several smaller trees were also snapped off.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Linn County 15 N Meadville 15 1745CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated up to 60 mph. A pole barn was blown apart and several large trees were either snapped or blown down. Several trees had limbs up to 8 inches in diameter snapped off. The damage was observed east of Highway 139, and just off Highway D. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Macon County 1 ESE Elmer 15 1940CST 0 0 0.00K 0.00K Hail (0.75)

Grundy County 1 NNW Laredo 15 2144CST 0 0 0.00K 0.00K Hail (1.50)

Grundy County Laredo 15 2155CST 0 0 0.00K 0.00K Hail (0.88)

Thunderstorms with hail up to ping pong ball in size and winds up to 60 mph, were observed across central Missouri, during the evening hours of May 15, 2013. Minor damage was reported in Howard and Linn Counties. The combination of an upper level low moving into the area, and a frontal boundary drifting south across northern Missouri, caused the thunderstorms to develop. Holt County 1 W Forest City 18 2330CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated up to 60 mph, with windows blown out of a residence.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Buchanan County 1 S St Joseph 18 2345CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)

A thunderstorm wind gust was measured at 60 mph, at the St. Joseph Airport.

296 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northwest

An upper level disturbance moved east-northeast into northwest Missouri. A strong cap was observed across the area, so only a couple of severe thunderstorms were able to initiate during the late evening hours of May 18, 2013. The thunderstorms were able to generate some 60 mph wind gusts, in Buchanan and Holt Counties as they dissipated. Note: The measured wind gust of 52 knots is equivalent to 60 mph. Atchison County Rockport 19 1502CST 0 0 0.00K 0.00K Hail (1.00)

Atchison County Rockport 19 1508CST 0 0 0.00K 0.00K Hail (1.00)

Atchison County 2 W Westboro 19 1526CST 0 0 0.00K 0.00K Hail (1.75)

Atchison County 1 NNE Linden 19 1556CST 0 0 0.00K 0.00K Hail (1.75)

Bates County 1 E Rich Hill 19 1745CST 0 0 0.00K 0.00K Hail (0.88)

Bates County 1 E Rich Hill 19 1745CST 0 0 0.00K 0.00K Hail (0.88)

Henry County 1 S Urich 19 1805CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A large tree was blown over, by thunderstorm winds estimated up to 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Buchanan County 3 SE Hurlingen 19 1815CST 0 0 2.00K 0.00K Thunderstorm Wind (61EG)

Power poles were reported down, with thunderstorm wind gusts estimated up to 70 mph.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Daviess County 2 NNE Winston 19 1818CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)

A thunderstorm wind gust was measured at 62 mph. Note: The measured wind gust of 54 knots is equivalent to 62 mph. Buchanan County St Joseph 19 1832CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)

The St. Joseph Airport ASOS, measured a thunderstorm wind gust at 59 mph.

Note: The measured wind gust of 51 knots is equivalent to 59 mph. Daviess County 3 N Winston 19 1838CST 0 0 0.00K 0.00K Hail (1.50)

Buchanan County 1 S St Joseph 19 1838CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Trees and powerlines were reported down. Thunderstorm winds were estimated up to 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

297 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northwest Jackson County 1 NNW Kansas City 19 1838CST 0 0 0.00K 0.00K Thunderstorm Wind (59MG)

A measured thunderstorm wind gust at 68 mph, was observed at the ASOS, at the Downtown Kansas City Airport.

Note: The measured wind gust of 59 knots is equivalent to 68 mph. Platte County 2 SE Dye 19 1839CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Numerous trees were reported down in the Weston area, along Highway 45. Thunderstorm wind gusts were estimated up to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jackson County 1 E Grandview 19 1840CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated up to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jackson County 3 E Kansas City Downtown 19 1840CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Twelve inch diameter tree limbs were blown down near I-435 and Gregory Road. Thunderstorm wind gusts were estimated up to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cass County 1 E Peculiar 19 1843CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated up to to 60 mph, with two 30 feet tall trees blown down.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cass County 2 S Belton Villnave Arpt 19 1845CST 0 0 1.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm wind gusts were estimated up to 65 mph, with roof caps blown off, street lights blown off poles, and lawn furniture blown away. All this was observed around 133rd Street and State Line Road.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Clay County 1 W Liberty Mitchell Arp 19 1845CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated up to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Andrew County 1 ESE Cosby 19 1850CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated up to 60 mph. This was near the intersection of State Route O and State Route Z.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Johnson County 1 N (SZL)Whiteman Afb 19 1850CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)

Thunderstorm wind gusts were measured at 64 mph, at the ASOS at Whiteman Air Force Base.

Note: The measured wind gust of 54 knots is equivalent to 62 mph. Platte County 2 E Parkville 19 1850CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

Trees and powerlines were reported down at English Landing. Thunderstorm wind gusts were estimated up to 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

298 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northwest Harrison County 1 SW Blue Ridge 19 1858CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated up to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Livingston County 1 S Chillicothe 19 1858CST 0 0 2.00K 0.00K Thunderstorm Wind (61EG)

Power poles were reported down, with thunderstorm wind gusts estimated up to 70 mph.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Livingston County 1 S Chillicothe 19 1900CST 0 0 0.00K 0.00K Hail (1.75)

Pettis County 1 W Green Ridge 19 1905CST 0 0 0.00K 0.00K Hail (0.75)

Clay County 1 S Excelsior Spgs 19 1910CST 0 0 0.75K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated up to 60 mph. The winds blew a wooden fence panel down and snapped a power pole, which caused a power outage. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jackson County 1 ESE Blue Spgs 19 1910CST 0 0 0.25K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated up to 60 mph, near Adams Derry Road and Route AA. A ten inch tree limb was blown down, which damaged a wooden fence. About a dozen shingles were also blown off a residential roof.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Carroll County 1 E Bosworth 19 1911CST 0 0 0.00K 0.00K Hail (1.00)

Grundy County Edinburg 19 1916CST 0 0 0.00K 0.00K Hail (1.00)

De Kalb County 7 E Osborn 19 1917CST 0 0 0.25K 0.00K Thunderstorm Wind (52EG)

An overhead door at the Cameron EMS building was blown in. Trees were also reported uprooted in Cameron. Thunderstorm wind gusts were estimated up to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Chariton County 1 S Brunswick 19 1920CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several trees about a foot in diameter were reported blown down, as well as numerous tree limbs. Thunderstorm wind gusts were estimated up to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mercer County 1 WSW Princeton 19 1925CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated up to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Daviess County 1 SE Gallatin 19 1930CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated up to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

299 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northwest Linn County 1 N Brookfield 19 1941CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several trees and tree limbs were reported down across Brookfield. Thunderstorm wind gusts were estimated up to 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Daviess County 3 S Winston 19 1958CST 0 0 6.00K 0.00K Thunderstorm Wind (61EG)

A roof was reported blown off a house. Thunderstorm wind gusts were estimated up to 70 mph.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Grundy County Trenton Arpt 19 1959CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A very large tree was reported down, which required a tractor to move it out of the way. Thunderstorm wind gusts were estimated up to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Adair County 1 N Kirksville 19 2013CST 0 0 0.50K 0.00K Thunderstorm Wind (61EG)

Thunderstorm wind gusts were estimated up to 70 mph. Powerlines were reported down.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Schuyler County 1 W Lancaster 19 2045CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Widespread tree damage was reported. A tractor trailer was blown over. Thunderstorm wind gusts were estimated up to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Schuyler County 3 N Downing 19 2045CST 0 0 8.00K 0.00K Thunderstorm Wind (61EG)

A 150 foot long hog confinement building, had half of its roof ripped off. An unknown number of dead hogs were observed. Thunderstorm wind gusts were estimated up to 70 mph. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Bates County Adrian 19 2124CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Trees were reported down in Adrian, with thunderstorm wind gusts estimated up to 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Bates County 1 NW Butler 19 2135CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts estimated up to 60 mph, caused 6 to 12 inch diameter trees to be knocked down.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Saline County 1 SSW Blackburn 19 2147CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Thunderstorm wind gusts were estimated up to 70 mph. Trees were reported down.

An upper level trough of low pressure over central Kansas, initiated a large area of strong to severe thunderstorms. This area of thunderstorms moved east across western Missouri, during the late afternoon and evening hours of May 19, 2013. There were numerous reports of hail and damaging thunderstorm winds up to 70 mph. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

300 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northwest Bates County 3 ESE Elkhart 20 0736CST 0 0 0.00K 0.00K Hail (1.75)

Cass County 3 WNW Creighton 20 0833CST 0 0 0.00K 0.00K Hail (0.75)

Johnson County 2 SE Centerview 20 0924CST 0 0 0.00K 0.00K Hail (0.88)

Johnson County 2 WNW Bowmansville 20 0927CST 0 0 0.00K 0.00K Hail (0.75)

Outflow boundary, left over from the the previous evenings activity, caused a few hail producing thunderstorms, across portions of west central Missouri, during the early morning hours of May 20, 2013.

Cass County 1 W Drexel 20 1415CST 0 0 0.00K 0.00K Hail (1.75)

Cass County 1 NNW Lisle 20 1422CST 0 0 0.00K 0.00K Hail (1.00)

Cass County 1 N Harrisonville 20 1445CST 0 0 0.00K 0.00K Hail (1.00)

Johnson County 1 SE Holden 20 1520CST 0 0 0.00K 0.00K Hail (1.75)

Pettis County Sedalia 20 1526CST 0 0 0.00K 0.00K Hail (0.75)

Johnson County 1 SSE Warrensburg 20 1535CST 0 0 0.00K 0.00K Hail (1.25)

Johnson County 1 SSE Knob Noster 20 1555CST 1556CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A supercell thunderstorm intensified as it moved into eastern Johnson County, near Knob Noster. Strong, straight-line winds estimated up to 60 mph, caused some minor damage to a house and mobile home.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Pettis County 4 WSW Lamonte 20 1557CST 2 N Hughesville 1616CST 14.5 200 0 0 20.00K 0.00K Tornado (EF1)

A supercell thunderstorm intensified as it moved into east Johnson County, MO near Knob Noster. Initially, strong, straight- line winds created minor damage in Knob Noster. As the storm continued to develop and move northeast, a tornado formed about 4 miles west-southwest of LaMonte, in extreme western Pettis County, at about 357 PM CST. The tornado, EF0 to EF1 at times, continued from this point to the northeast for approximately 14.5 miles, damaging numerous farm out-buildings, including two large chicken farms, before dissipating around 416 PM CST, around 2 miles north of Hughesville. Numerous trees also suffered damage.

Saline County 4 S Marshall Arpt 20 1630CST 0 0 0.00K 0.00K Hail (0.88)

Randolph County 4 S Milton 20 1715CST 0 0 0.00K 0.00K Hail (1.00)

301 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northwest Pettis County 2 NE Dresden 20 1751CST 2 W Georgetown 2351CST 0 0 0.00K 0.00K Flash Flood

Several feet of water was reported over Rieckhoff Road near State Highway T.

Pettis County 1 N Hughesville 20 1802CST 21 0002CST 0 0 0.00K 0.00K Flash Flood

Several feet of water was reported over the road, near the intersection of Highway D and McGruder Road.

Cooper County 1 WNW Bunceton 20 1840CST 3 SSW Lone Elm 21 0040CST 0 0 0.00K 0.00K Flash Flood

State Highway J was closed due to high water. A large upper level trough of low pressure was observed across the Central Plains. A disturbance in the broad upper level trough, combined with an outflow boundary moving north into central Missouri, helped produce severe thunderstorms across central Missouri, during the afternoon and evening hours of May 20, 2013. A super cell severe thunderstorm produced an EF1 tornado in Pettis County, where minor damage was observed. Hail and wind damage were also observed, along with some flash flooding. Howard County 1 E Fayette 26 1622CST 2222CST 0 0 0.00K 0.00K Flash Flood

Water was observed running across several roads. Howard County 1 E Fayette 26 1640CST 2240CST 0 0 0.00K 0.00K Flash Flood

A car was washed off Highway 5 near Fayette. Howard County 1 E Fayette 26 1715CST 2315CST 0 0 0.00K 0.00K Flash Flood

A street was reported washed out in Fayette. Also multiple roads were closed due to high water.

Grundy County 2 NNW Edinburg 26 1730CST 0 0 0.00K 0.00K Hail (1.00)

This hail was reported at Leisure Lake. Diurnally driven thunderstorms, aided by a weak disturbance, were noted across central Missouri, during the late afternoon hours of May 26, 2013. Due to their slow movement, locally heavy rains were observed, which produced some flash flooding. There was also one report of hail.

De Kalb County 5 ENE Union Star 27 0445CST 0 0 0.50K 0.00K Thunderstorm Wind (52EG)

A grain bin and a shed near Highway 169, were damaged from tunderstorm winds estimated up to 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Caldwell County 1 N Hamilton 27 0705CST 0 0 0.00K 0.00K Hail (0.88)

A Mesoscale Convective System, or MCS, that developed over eastern Nebraska, moved southeast and weakened, as it moved into northwest Missouri, during the early morning hours of May 27, 2013. Thunderstorm wind damage was observed in Dekalb County, with hail also observed in Caldwell County.

302 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northwest Atchison County 1 WNW Fairfax 27 2151CST 0 0 0.00K 0.00K Hail (1.00)

Atchison County 2 SW Milton 27 2210CST 0 0 3.00K 0.00K Thunderstorm Wind (61EG)

Tree uprooted and buildings were reported to have damage. Thunderstorm wind gusts were estimated up to 70 mph.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Atchison County 2 ENE Phelps City 27 2214CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated up to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Nodaway County 5 SW Pumpkin Center 27 2235CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm wind gusts were estimated up to 65 mph. Three willow and cottonwood tree trunks, 12 to 15 inches in diameter were snapped. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Adair County 2 W Millard 28 0138CST 0 0 0.00K 0.00K Thunderstorm Wind (57MG)

The ASOS at Kirksville's airport measured a thunderstorm wind gust at 66 mph.

An MCS, or Mesoscale Convective System, rolled across northern Missouri, during the late evening hours of May 27, 2013, into the early morning hours of May 28, 2013. Several spots received damaging winds, as this feature moved east. Note: The measured wind gust of 57 knots is equivalent to 66 mph. Cass County 1 E Peculiar 28 1253CST 0 0 0.00K 0.00K Hail (0.88)

Atchison County 2 N Rockport 28 1535CST 0 0 0.00K 0.00K Hail (1.75)

Atchison County 2 W Rockport 28 1605CST 0 0 0.00K 0.00K Hail (1.00)

Atchison County 1 N Westboro 28 1641CST 0 0 0.00K 0.00K Hail (1.00)

Atchison County 3 WNW Tarkio Gould Muni Ar 28 1707CST 4 E Linden 2307CST 0 0 0.00K 0.00K Flash Flood

Highway AA was reported under water, to the west of Highway 59, and northwest of Tarkio.

Nodaway County 1 NE Parnell 28 1810CST 0 0 0.00K 0.00K Hail (1.00)

Andrew County 1 N Savannah 28 1932CST 0 0 0.00K 0.00K Hail (0.88)

A stalled frontal boundary over northern Missouri, combined with a very warm and humid airmass, produced severe thunderstorms across western Missouri, during the afternoon hours of May 28, 2013. There were several reports of large hail, and one report of flash flooding.

303 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northwest Adair County Kirksville 30 1320CST 0 0 20.00K 0.00K Thunderstorm Wind (61EG)

Power poles and roof damage were reported across the south side of Kirksville. Numerous trees were also reported down, and a mobile home was blown onto Highway H. Thunderstorm wind gusts were estimated up to 70 mph.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Adair County 2 SW Sperry 30 1332CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Numerous large tree limbs were broken and strewn about the yard. Thunderstorms were estimated up to 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cooper County 2 SE Billingsville 30 1534CST 1 WNW Clarks Fork 2134CST 0 0 0.00K 0.00K Flash Flood

Water was reported across the intersection of Highway 87 and Highway Y.

Several outflow boundaries, combined with an unstable atmosphere, led to an isolated severe thunderstorm over north central Missouri, during the afternoon hours of May 30, 2013. There were a couple of reports of damaging winds and one report of flash flooding. Clay County 1 ENE Linden 31 0255CST 0 0 0.00K 0.00K Hail (0.75)

Clay County 1 N Missouri City 31 0312CST 0 0 0.00K 0.00K Hail (0.88)

Clay County 1 S North Kansas City 31 0315CST 0 0 0.00K 0.00K Hail (1.00)

Hail was reported around the downtown Kansas City airport. Clay County 2 NW Liberty City Arpt 31 0320CST 0 0 0.00K 0.00K Hail (1.00)

Jackson County 1 WNW Lake Lotawana 31 0600CST 1200CST 0 0 0.00K 0.00K Flash Flood

West bound Highway 50, just east of the Todd George exit, had 6 inches of water over the roadway. Traffic was restricted, but able to go through. Cooper County 3 S Boonville 31 0645CST 1245CST 0 0 0.00K 0.00K Flash Flood

One foot of water was reported over U Highway and Doyle Road.

Cooper County 2 NW Gooch Mill 31 0800CST 1400CST 0 0 0.00K 0.00K Flash Flood

Highway V to the west of Highway 179, was closed due to high water.

Jackson County 3 E Kansas City Downtown 31 0800CST 1 E Independence 1400CST 0 0 0.00K 0.00K Flash Flood

Numerous roads were reported closed in the Kansas City area, due to high water from heavy rains. Stranded cars were also reported.

304 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northwest Cass County 1 S Avon 31 1034CST 1 SW Pleasant Hill 1634CST 0 0 0.00K 0.00K Flash Flood

Water was reported flowing over Highway 58 by the fair grounds. Water came up quickly in the past 15 minutes.

A strong low level jet, combined with an unstable airmass, led to thunderstorm development over eastern Kansas. These thunderstorms rolled east across central Missouri, during the morning hours of May 31, 2013. Heavy rains caused some flash flooding, and there were several reports of hail.

Pettis County Sedalia 31 1451CST 0 0 0.00K 0.00K Hail (0.88)

Johnson County Leeton 31 1455CST 0 0 0.00K 0.00K Hail (0.75)

Pettis County 2 SE Lamonte 31 1519CST 0 0 0.00K 0.00K Hail (1.00)

Bates County Adrian 31 1525CST 0 0 0.00K 0.00K Hail (1.00)

Henry County 2 NW Hortense 31 1525CST 0 0 0.00K 0.00K Hail (0.75)

Pettis County Sedalia 31 1525CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated up to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Pettis County Sedalia 31 1525CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated up to 60 mph, with a 2 foot diameter tree uprooted.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Henry County 1 WNW Hartwell 31 1550CST 0 0 0.00K 0.00K Hail (0.75)

Pettis County Sedalia 31 1553CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated up to 60 mph, with 4 to 6 inch tree limbs snapped off.

Severe thunderstorms produced hail and damaging winds, across west central Missouri, during the afternoon hours of May 31, 2013. A weak boundary south of Kansas City, combined with a warm and humid airmass, led to the thunderstorm development. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

MISSOURI, Southeast Cape Girardeau County Gulf Jct 01 0000CST 1 SSE Cape Girardeau 26 0300CST 0 0 0.00K 0.00K Flood

Major flooding of the Mississippi River in late April gradually lessened in May. Minor to moderate flooding persisted in the Cape Girardeau area through most of May. Fewer and fewer homes in the Cape Girardeau area were affected. The flooded crop acreage gradually decreased. Numerous roads remained closed. The city of Cape Girardeau is protected by floodwalls and levees.

305 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southeast Mississippi County Birds Pt 01 0000CST 24 1500CST 0 0 0.00K 0.00K Flood

Minor to moderate flooding persisted from late April through most of May along the Mississippi River. There was flooding of low-lying fields, and some county roads were closed. The Dorena-Hickman Ferry was closed due to high water over the landing at Hickman, Kentucky. The ferry connects Highway 1354 at Hickman, Kentucky with Missouri Route A and Route 77 near Dorena, Missouri.

New Madrid County 2 SSE New Madrid 01 0000CST 19 0400CST 0 0 0.00K 0.00K Flood

Minor flooding of the Mississippi River persisted through most of May in the New Madrid area. Bottomland fields were flooded. Scott County Commerce 01 0000CST 25 0900CST 0 0 0.00K 0.00K Flood

Major flooding of the Mississippi River in late April gradually lessened in May. Minor to moderate flooding persisted through most of May. The number of closed roads decreased, and the acreage of flooded cropland gradually lowered.

The Mississippi River remained above flood stage from April well into May. Heavy rainfall in the Missouri and upper Mississippi Valleys sent the Mississippi River well above flood stage.

Carter County Ellsinore 03 1300CST 6 E Grandin 2100CST 0 0 0.00K 0.00K Heavy Rain

Several county roads were closed due to flooding in eastern Carter County. K Highway was closed off of B Highway.

Wayne County 3 NE Silva 04 0900CST 3 N Greenville 05 0400CST 0 0 0.00K 0.00K Flood

Minor flooding occurred along the St. Francis River. Some low-lying fields and woodlands near the river were underwater. Riverside campgrounds were evacuated. Widespread heavy rainfall from 2 to 4 inches caused creeks and streams to reach bankful. The St. Francis River rose above flood stage. The heavy rainfall was caused by a strong and slow-moving low pressure system that formed along the Mid- Mississippi River Valley. New Madrid County 6 W Risco 21 1506CST 0 0 0.00K 0.00K Hail (0.75)

Penny-size hail was reported, along with wind gusts around 40 mph.

A cluster of strong thunderstorms moved northeast from Arkansas, producing dime-size hail in southeast Missouri. The storms occurred in a moist southwest wind flow ahead of a cold front over Missouri.

Wayne County Wappapello 30 1725CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Several large tree limbs up to six inches in diameter were blown down.

Clusters of thunderstorms moved north-northeast across southeast Missouri. The storms occurred in a southwesterly flow of moist and moderately unstable air. The storms were enhanced by a 500 mb shortwave extending from the Ozarks to the Lower Mississippi Valley. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cape Girardeau County Gulf Jct 31 0400CST 1 SSE Cape Girardeau 2359CST 0 0 0.00K 0.00K Flood

Minor flooding began along the Mississippi River once again. Some low-lying bottomland fields were underwater. The flooding persisted into June. The Mississippi River crept back above flood stage at the end of the month due to renewed heavy rainfall in upper portions of the basin.

306 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southwest Newton County 1 E Stark City 09 2300CST 1 S Newtonia 10 0100CST 0 0 0.00K 0.00K Flood

The low water crossing at Highway 86 was flooded. Mcdonald County Powell 10 1015CST 1215CST 0 0 0.00K 0.00K Flood

Roadways along Big Sugar Creek, Little Sugar Creek, and Indian Creek were closed due to flooding.

Mcdonald County Mc Natt 10 1058CST 1258CST 0 0 0.00K 0.00K Flood

Route CC was flooded and closed. Newton County 2 SE Newtonia 10 1058CST 1258CST 0 0 0.00K 0.00K Flood

Highway 86 was closed due to high water. Barry County 1 W Mc Dowell 10 1110CST 1310CST 0 0 0.00K 0.00K Flood

Route C was closed due to flooding along the Little Flat Creek.

A cold front moving through the Missouri Ozarks and training of thunderstorms led to localized flooding.

Newton County Neosho 19 1832CST 0 0 0.00K 0.00K Hail (0.75)

Newton County Neosho 19 1832CST 0 0 0.00K 0.00K Hail (0.75)

Jasper County Sarcoxie 19 1850CST 0 0 0.00K 0.00K Hail (0.75)

Jasper County Sarcoxie 19 1850CST 0 0 0.00K 0.00K Hail (0.75)

Jasper County Sarcoxie 19 1850CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A tree was blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jasper County 1 SE Oronogo 19 2257CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A tree was down across a roadway. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jasper County 1 NE Carthage 19 2302CST 0 0 1.00K 0.00K Thunderstorm Wind (65EG)

A road sign was blown down at I-49 and Fir Road. Note: The estimated wind gust of 65 knots is equivalent to 75 mph.

307 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southwest Jasper County 3 E Carthage 19 2306CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)

A tree fell down on a house at the intersection of Chestnut and Highway 118.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Jasper County 1 E Carthage 19 2306CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)

A large tree was reported down on a house. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Jasper County 2 E Carthage 19 2306CST 2308CST 0.5 100 0 0 200.00K 0.00K Tornado (EF1)

An EF-1 tornado touched down briefly near the intersection of Palimino and 13th Street. approximately 2 miles east of Carthage. Numerous trees were uprooted and power lines blown down. Several outbuildings were destroyed. Time was estimated. Winds were estimated between 90 to 100 mph.

Barton County 3 SSW Golden City 19 2312CST 0 0 0.00K 0.00K Funnel Cloud

Vernon County 1 ENE Nevada 19 2312CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A tree fell down across BB Highway in Nevada. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Dade County 1 NNE Lockwood 19 2323CST 2324CST 0.65 100 0 0 250.00K 0.00K Tornado (EF0)

An EF-0 tornado touched down on the west side of Lockwood at the golf course and city pool area. The tornado tracked east- northeast to the north end of Sycamore St. A grocery store sustained roof damage. Several trees were uprooted and a carport was thrown. Wind speeds were estimated between 70 to 80 mph.

Vernon County 1 NE Nevada Arpt 19 2332CST 0 0 0.00K 0.00K Thunderstorm Wind (55MG) Note: The measured wind gust of 55 knots is equivalent to 63 mph.

Dade County 1 E Greenfield 19 2337CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Dime size hail was reported along with the report of 60mph winds.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Dade County 1 E Greenfield 19 2339CST 0 0 10.00K 0.00K Thunderstorm Wind (56EG)

A tree fell on a car. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Polk County 2 W Aldrich 19 2348CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)

A barn was destroyed. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Polk County 1 N Bolivar 20 0005CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)

Two power lines were snapped off and over the roadway at Highway 83 and 425th Road.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

308 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southwest Polk County 1 ENE Burns 20 0006CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

A power line was down. Location and time was estimated. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Dallas County 1 ENE Foose 20 0020CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Trees were uprooted near Granger Lane. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Dallas County 2 S Cloverdale 20 0030CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A couple trees were blown down at 270 Falling Rock Road. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Vernon County 1 NE Stotesbury 20 0435CST 0535CST 0 0 0.00K 0.00K Flash Flood

Several low water crossings were flooded and closed over the western half of the county.

Greene County Ash Grove 20 1344CST 0 0 0.00K 0.00K Hail (0.88)

Polk County 1 SE Pleasant Hope 20 1417CST 0 0 0.00K 0.00K Hail (0.88)

Polk County 1 E Half Way 20 1429CST 0 0 0.00K 0.00K Hail (0.88)

Polk County 2 WNW Schofield 20 1430CST 0 0 0.00K 0.00K Hail (1.25)

Quarter to half dollar sized hail was reported at Highway YY and Highway H.

Dallas County 5 NE Windyville 20 1505CST 0 0 0.00K 0.00K Hail (1.00)

Laclede County 1 E Eldridge 20 1520CST 0 0 0.00K 0.00K Hail (1.00)

Miller County 2 ESE Iberia 20 1606CST 0 0 0.00K 0.00K Hail (1.50)

Maries County 3 N Vienna 20 1636CST 0 0 0.00K 0.00K Hail (1.50)

Cedar County 1 SSW Stockton Muni Arpt 20 1637CST 1 SE Stockton Resv North 1640CST 3.2 100 0 0 50.00K 0.00K Tornado (EF0)

An EF-0 tornado touched down about 3 miles south of Stockton along East 1674 Road. The tornado continued 3 miles northeastward through Orleans Trail Public Use Area before lifting over Stockton Lake. There was damage to a barn and several trees. Wind speeds were estimated around 85 mph.

309 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southwest Maries County 1 N Belle 20 1651CST 0 0 0.00K 0.00K Hail (1.75)

Barton County Iantha 20 1703CST 2 WNW Irwin 1705CST 6.81 100 0 0 50.00K 0.00K Tornado (EF1)

An EF-1 tornado touched down 7 miles west-northwest of Lamar and tracked 7 miles to the northeast. Several trees along with a couple of outbuildings were destroyed. Winds were estimated around 95 mph.

Barton County 1 S Lamar 20 1715CST 0 0 15.00K 0.00K Thunderstorm Wind (65EG)

A building and several roofs were reported damaged by estimated 75 mph wind.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Barton County 3 NE Lamar 20 1715CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Minor roof damage was reported to a building at the intersection of Highways C and F.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cedar County 2 N Wagoner 20 1734CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A small barn was blown into a trailer home. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Newton County 2 SW Seneca 20 1741CST 1743CST 0.81 400 0 0 100.00K 0.00K Tornado (EF1)

An EF-1 tornado crossed over the Oklahoma and Missouri state line into Seneca. Numerous trees were snapped and uprooted. Winds were estimated around 100 mph. Cedar County Stockton 20 1743CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Numerous trees and power lines were reported down across the county.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cedar County 2 SSW Caplinger Mills 20 1743CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

Minor roof damage was reported to a trailer home. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Lawrence County Aurora 20 1753CST 0 0 0.00K 0.00K Hail (1.50)

A picture of the hail was from social media and time was estimated.

Newton County 2 E Wela Park 20 1755CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A tree fell on a home causing minor damage. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. St. Clair County 3 WSW Gerster 20 1756CST 1757CST 0.48 200 0 0 0.00K 0.00K Tornado (EF0)

An EF-0 tornado produced up to 80 mph winds and uprooted trees along a half mile long path.

310 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southwest Lawrence County 1 E Marionville 20 1757CST 0 0 0.00K 0.00K Hail (1.00)

Hickory County 1 SE Weaubleau 20 1757CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Minor damage was reported to the roof of the City Hall. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. St. Clair County 1 NE Collins 20 1757CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several trees were reported down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Greene County 1 N Willard 20 1758CST 0 0 0.00K 0.00K Hail (0.88)

St. Clair County 3 ENE Vista 20 1802CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

The Emergency Manager reported that hundreds of trees were down across the eastern portion of the county due to straight line winds. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Hickory County 1 E Wheatland 20 1805CST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)

Several large trees were blown down in town including one of which fell on a home. Minor roof damage occurred to City Hall and the windows were blown out of a cafe. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Greene County 1 E Battlefield 20 1815CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

A tree was snapped off above ground and landed on an outbuilding. A picture of the tree was received via social media.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Benton County 1 NW Whitakerville 20 1820CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A large tree was reported down via a Facebook post, in Warsaw.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Morgan County 1 SW Gravois Mills 20 1840CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

The public reported winds at 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Morgan County 1 SW Gravois Mills 20 1845CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Minor damage was reported to the roof and deck of a home. Several trees were also reported down in the area.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Greene County 2 WSW Wildwood Estates 20 1850CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A tree was reported down near the intersection of Campbell and Nottingham Roads in town.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

311 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southwest Barry County 3 E Shell Knob 20 1850CST 1851CST 0.53 200 0 0 50.00K 0.00K Tornado (EF1)

An EF-0 tornado uprooted and damaged trees along its path. Winds were estimated around 110 mph. This tornado continued into Stone County. Stone County 4 N Viola 20 1851CST 1852CST 0.89 200 0 0 0.00K 0.00K Tornado (EF0)

An EF-0 tornado continued from Barry County into Stone County uprooting and damaging trees. Winds were estimated on the Stone County side of the track around 80 mph. Morgan County 2 NNW Gravois Mills 20 1855CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A small shed collapsed due to high winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Stone County 2 NNW Notch 20 1859CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

The public reported 60 mph winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Laclede County 1 E Lebanon 20 1900CST 0 0 4.00K 0.00K Thunderstorm Wind (52EG)

A large tree and several power lines were reported down at the intersection of Green Hills Drive and Tower Road.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Wright County 2 NNE Grovespring 20 1904CST 0 0 0.00K 0.00K Hail (1.25)

Wright County 2 SE Odin 20 1904CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Multiple trees were reported snapped off above the ground. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Stone County Reeds Spg 20 1905CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Numerous trees were reported down in and near Reeds Spring and along Highway 413.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Stone County 2 N Reeds Spg 20 1905CST 2 SW Tauria 1906CST 0.58 100 0 0 0.00K 0.00K Tornado (EF0)

An EF-0 tornado caused some tree damage along its path. Winds were estimated around 80 mph.

Stone County 2 WSW Tauria 20 1905CST 1906CST 1.35 100 0 0 0.00K 0.00K Tornado (EF1)

An EF-1 tornado uprooted trees along its path. Estimated winds were around 90 mph.

Laclede County 1 E Lebanon 20 1909CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Portions of the roof from a mobile home were blown onto power lines near the intersection of Highways 438 and MM.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

312 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southwest Taney County 1 N Branson 20 1910CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Power outages were reported at the intersection of Highway F and 65, north of Branson.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Taney County 1 S Branson 20 1910CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

High winds damaged siding and shingles to a couple of hotels on the west side of Branson near the White Water, Water Park.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Taney County 1 N Taneyville 20 1920CST 0 0 12.00K 0.00K Thunderstorm Wind (52EG)

A hay barn received significant damage. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Pulaski County 1 SE Dixon 20 1929CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Taney County Forsyth 20 1931CST 0 0 8.00K 0.00K Thunderstorm Wind (52EG)

Trees fell on two mobile homes causing minor damage. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Webster County 2 ENE Zenar 20 1937CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

The public reported 60 mph winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Douglas County 1 E Mt Zion 20 1946CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Two trees were reported down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Morgan County 3 WNW Gravois Mills 20 1946CST 1947CST 0.74 100 0 0 50.00K 0.00K Tornado (EF0)

An EF-0 tornado briefly touched down about 3 miles west-northwest of Gravois Mills uprooting numerous trees and causing minor structural damage. The winds were estimated between 70 to 80 mph.

Douglas County 2 E Ava 20 1949CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several trees were reported down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Wright County 5 NNE Mansfield 20 2000CST 0 0 8.00K 0.00K Thunderstorm Wind (52EG)

Several homes had minor shingle damage and a few small storage sheds were blown over.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Wright County 2 NNE Grovespring 20 2004CST 0 0 0.00K 0.00K Hail (1.25)

313 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southwest Wright County 2 SE Odin 20 2004CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Multiple trees were reported snapped. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Ozark County Souder 20 2015CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Minor damage was reported to a barn and several power lines were reported down on Highway Z about one mile north of Highway 5. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Ozark County 1 E Brixey 20 2107CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Several trees and power lines were reported down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Howell County 3 WSW Leota 20 2155CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Several power lines and trees were reported down at the intersection of Highways YY and 142.

A strong negatively titled upper level trough developed over the central portions of the country. A slow moving cold front moved into the Missouri Ozarks. This setup caused for several rounds of severe and slow moving thunderstorms which lead to widespread wind damage, large hail, and several low end tornadoes along with isolated flooding due to heavy rainfall. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Morgan County 1 SW Gravois Mills 30 1425CST 1525CST 0 0 0.00K 0.00K Hail (1.00)

Morgan County 1 SW Gravois Mills 30 1428CST 0 0 0.00K 0.00K Hail (0.88)

Howell County 3 ENE White Church 30 1456CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several large trees were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jasper County 1 W Webb City 30 1600CST 1700CST 0 0 0.00K 0.00K Flash Flood

Several roadways were impassable and pictures of the flooding were on Facebook.

Jasper County 1 E Joplin 30 1648CST 1748CST 0 0 0.00K 0.00K Flood

Water up to a foot deep was flowing over Zora Road and Miller Road.

Lawrence County 1 S Halltown 30 1700CST 2100CST 0 0 0.00K 0.00K Heavy Rain

Rainfall of 4.20 inches fell in several hours. Lawrence County 1 NE Mt Vernon 30 1800CST 1900CST 0 0 0.00K 0.00K Flash Flood

Fast flowing water was observed on several streets making them impassable in Mount Vernon. Pictures of the flooding were on Facebook.

314 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southwest Greene County 3 E Battlefield 30 1800CST 2000CST 0 0 0.00K 0.00K Heavy Rain

Three inches of rainfall fell in less than two hours. Lawrence County 1 E Stotts City 30 1800CST 2100CST 0 0 0.00K 0.00K Heavy Rain

Rainfall of 3.80 inches fell in several hours. Lawrence County 1 SSE Pierce City 30 1823CST 1923CST 0 0 0.00K 0.00K Flash Flood

There were numerous reports of flooding and intersections under water around Pierce City and the north side of Monett.

Webster County 1 S Bracken 30 1858CST 1958CST 0 0 0.00K 0.00K Flash Flood

MODOT reported Highway 38 was closed due to flooding. Greene County 2 ESE Republic 30 1900CST 2000CST 0 0 0.00K 0.00K Flash Flood

A picture from Facebook showed a swollen creek was flooding into resident's yards and streets.

Greene County 2 WSW Springfield 30 1915CST 2015CST 0 0 0.00K 0.00K Flash Flood

Wilson Creek was flooded out of its banks at Scenic Ave. Phelps County 1 ESE Edgar Spgs 30 1915CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several trees were blown down along Highway H east of Edgar Springs.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Greene County 2 S Nichols 30 1920CST 2020CST 0 0 0.00K 0.00K Flash Flood

Wilson Creek flooded the intersection of Farm Road 146 and Farm Road 123.

Christian County 1 W Boaz 30 1948CST 2048CST 0 0 0.00K 0.00K Flash Flood

Willoughby Road was flooded about one half mile west of Highway N.

Wright County 1 S Mansfield 30 2030CST 2130CST 0 0 0.00K 0.00K Flash Flood

Water was entering apartment buildings due to high water.

315 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southwest Wright County 3 NNE Hartville 30 2055CST 3 S Fuson 2155CST 0 0 0.00K 0.00K Flash Flood

Highway E was closed due to flooding. Mcdonald County Mc Natt 30 2129CST 2229CST 0 0 0.00K 0.00K Flash Flood

One to two feet of flowing water was over the roadway at Elkhorn Creek and CC Highway about 7 miles east of Goodman.

Barry County Monett 30 2130CST 2230CST 0 0 0.00K 0.00K Flash Flood

There were several reports and pictures from Facebook of flooded streets and impassable roads due to flash flooding.

Lawrence County 3 NNE Stotts City 30 2130CST 3 SSW Phelps 2230CST 0 0 0.00K 0.00K Flash Flood

Highway 97 was closed due to flooding. Wright County 1 E Hartville 30 2150CST 2250CST 0 0 0.00K 0.00K Heavy Rain

Rainfall of 3.40 inches fell in several hours. Howell County 5 W Olden 30 2320CST 2325CST 4.28 400 0 0 5.00K 0.00K Tornado (EF1)

A tornado uprooted numerous trees along its 4 mile path. Several bales of hay were picked up and thrown. An outbuilding was destroyed near a dairy farm. The width of the path was estimated about a quarter of a mile wide. Estimated maximum winds were up to 100 mph.

Howell County 1 E Olden 30 2329CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A tree was blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Howell County 1 SE Leota 31 0056CST 0156CST 0 0 0.00K 0.00K Flash Flood

Several low water crossings were flooded and impassable. Webster County 1 SSE Marshfield 31 0213CST 0413CST 0 0 0.00K 0.00K Flood

MODOT reported several low water crossings flooded and closed.

Lawrence County 3 NNE Stotts City 31 0215CST 3 SSW Phelps 0315CST 0 0 0.00K 0.00K Flood

MODOT reported Highway 96 north of Stotts City was closed due to high water.

316 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southwest Benton County 1 S Lincoln 31 0635CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Several trees were down. One tree fell on a garage. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Dallas County 1 N Urbana 31 0705CST 0 0 0.00K 0.00K Hail (1.00)

A picture from Facebook showed quarter sized hail. Morgan County 1 N Marvin 31 0710CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A couple of trees were blocking Highway C and Highway E. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Lawrence County 3 N Mt Vernon Arpt 31 0800CST 1 0 0.00K 0.00K Flood Two people attempted to cross a low water bridge on County Road 2110 three miles west of Mount Vernon along the Spring River. One male was rescued in the river and the other male drowned. His body was later recovered. Heavy rainfall from the previous night led to elevated water levels on area streams. M72VE

Jasper County 1 WNW Jasper 31 1358CST 1458CST 0 0 0.00K 0.00K Flood

Several roads were flooded across Jasper County. These included Jackpine Road from County Road 160 to County Road 170. County Road 180 from Highway 96 to Kafir Road was flooded. County Road 90 from Harmony Road to Ivory Road was flooded. These roadways were along the Spring River.

Laclede County 1 E Eldridge 31 1435CST 0 0 10.00K 0.00K Thunderstorm Wind (61EG)

A communication tower was blown down. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Benton County 3 SW Mora 31 1631CST 0 0 0.00K 0.00K Hail (0.75)

Morgan County 7 W Zwanzig 31 1646CST 0 0 0.00K 0.00K Hail (1.75)

Morgan County 1 N Florence 31 1726CST 1926CST 0 0 0.00K 0.00K Heavy Rain

Three inches of rainfall fell in about 2 and a half hours. Miller County 1 E Tuscumbia 31 1730CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

A picture from Facebook showed a tree on a house. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Greene County Fair Grove 31 1800CST 0 2 0.00K 0.00K Lightning

Two people were struck by lightning and knocked unconscious at an outdoor rodeo. Both individuals were taken to an area hospital and later released. Cedar County 3 N Stockton 31 1815CST 0 0 0.00K 0.00K Hail (1.75)

317 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southwest Cedar County 1 ESE Caplinger Mills 31 1815CST 0 0 50.00K 0.00K Hail (2.50)

Several houses had roof damage and cars had hail damage due to the large hail stones.

Barton County 2 ESE Liberal 31 1840CST 1940CST 0 0 0.00K 0.00K Flash Flood

High water was flowing over Highway K east of Liberal. Morgan County 2 SE Glensted 31 1845CST 1945CST 0 0 0.00K 0.00K Flash Flood

Highway E was flooded by high water. Morgan County 3 NNW Gravois Mills 31 1845CST 1945CST 0 0 0.00K 0.00K Flash Flood

Highway MM was flooded. Cedar County Stockton 31 1900CST 2000CST 0 0 0.00K 0.00K Flash Flood

There were numerous roadways in Stockton which were impassable due to high water.

Polk County 2 WNW Burns 31 1906CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A tree was reported down across Highway AA just north of Highway 32 blocking both lanes of traffic.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Dallas County 1 N Urbana 31 1910CST 0 0 0.00K 0.00K Hail (1.25)

A picture of the hail was on Facebook. Hickory County Elkton 31 1910CST 0 0 0.00K 0.00K Hail (1.00)

Widespread nickle to quarter sized hail was reported across southern Hickory County.

Maries County 2 SW Belle 31 1920CST 2020CST 0 0 0.00K 0.00K Flash Flood

Highway 42 was flooded one half mile west of Highway 28. Miller County 1 NW Aurora Spgs 31 1930CST 1 0 0.00K 0.00K Flash Flood A teen was near a storm drain culvert and was swept away by quickly rising water. His body was later recovered along a creek about half a mile from the original location. Thunderstorms with heavy rainfall were moving through the area at the time. M17OU

Newton County 2 NNE Seneca 31 1930CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A tree fell down across a driveway. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

318 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southwest Cedar County 3 E Stockton 31 1937CST 3 NE Stockton Resv North 2037CST 0 0 0.00K 0.00K Flash Flood

There were numerous reports of roads closed due to flooding.

Miller County 1 ESE Eldon 31 1950CST 2050CST 0 0 0.00K 0.00K Flash Flood

There was widespread flooding of roadways in the Eldon area.

Morgan County 1 SW Gravois Mills 31 2005CST 2105CST 0 0 0.00K 0.00K Heavy Rain

Rainfall of 3.33 inches was reported in 4 hours. Morgan County 4 NNW Gravois Mills 31 2029CST 2129CST 0 0 0.00K 0.00K Flash Flood

A high water rescue took place at a low water crossing. Laclede County 2 SW Lebanon 31 2100CST 2200CST 0 0 0.00K 0.00K Flash Flood

High water up to a foot deep was over the east bound lane of Highway 32.

Greene County 2 SE Mumford 31 2134CST 2 SW Cherry Vly Estates 2234CST 0 0 0.00K 0.00K Flash Flood

High water was reported over County Road 123 and County Road 146.

Greene County 3 SE Mulroy 31 2143CST 3 N Springfield Bar H Ar 2243CST 0 0 0.00K 0.00K Flash Flood

Water was over the roadway at the intersection of Division and Highway 125.

Greene County 1 SSE Elwood 31 2143CST 2243CST 0 0 0.00K 0.00K Flash Flood

A foot of water was over the intersection of Highway B and Highway 266.

Greene County 1 SW Walnut Grove 31 2156CST 2256CST 0 0 0.00K 0.00K Flash Flood

A foot of water was over the road in Walnut Grove. Wright County 2 ENE Hartville 31 2156CST 2256CST 0 0 0.00K 0.00K Flash Flood

Several low water crossings throughout the county were flooded.

319 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southwest Douglas County 1 E Midway 31 2220CST 0 0 0.00K 0.00K Hail (1.00)

A slow moving trough across the central portions of the country helped develop several rounds of severe thunderstorms and flash flooding across the Missouri Ozarks.

MONTANA, Central

MTZ010-046-048 Eastern Glacier - Eastern Pondera - Southern Rocky Mountain Front

07 1400MST 1455MST 0 0 0.00K 0.00K High Wind

MTZ012 Cascade 10 1307MST 0 0 0.00K 0.00K High Wind An east-west oriented upper ridge over far southern Canada moved south into the U.S. as a weather disturbance aloft moved into Central Canada. The associated cold front moved into Glacier County bringing with it gusty northerly winds along the east slopes of the Rocky Mountains. Wind gusts to at least 40 mph, with more isolated gusts to around 60 mph, were observed in multiple locations.

MTZ011-044 Hill - Toole 13 1949MST 2355MST 0 0 0.00K 0.00K High Wind

MTZ009-048 Eastern Glacier - North Rocky Mountain Front - Southern Rocky Mountain Front

14 0103MST 0521MST 0 0 0.00K 0.00K High Wind

A shortwave over the Pacific Northwest clipped northern Montana before moving to Saskatchewan and strong winds developed over the northern Rocky Mountains behind the associated cold front. With a relatively dry air mass below the shortwave induced convective development, the main threat over Central Montana was strong convective wind gusts which were reported in multiple locations.

MONTANA, East Mccone County 1 SW Ft Peck Lake Handar 13 1830MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Winds blew over a wood and metal horse shed. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Valley County 4 NNW Duck Creek 13 1840MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Trained spotter reported a horse shed was blown over. The horses were not injured. Wind gust estimated at 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Valley County 5 NNW Ft Peck 13 1842MST 0 0 0.00K 0.00K Thunderstorm Wind (57MG)

Trained spotter measured a peak wind gust of 66 mph and heavy rain.

Note: The measured wind gust of 57 knots is equivalent to 66 mph. Valley County 1 S Ft Peck 13 1845MST 0 0 0.00K 0.00K Thunderstorm Wind (58EG)

Several public reports of minor damage in the town of Fort Peck, including a glass door shattered from blowing debris and a chain link fence blown over. Note: The estimated wind gust of 58 knots is equivalent to 67 mph.

320 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MONTANA, East Richland County 25 WNW Sioux Pass Dot 13 1957MST 0 0 0.00K 0.00K Thunderstorm Wind (63MG)

The mesonet site at Charlie Creek measured sustained winds of 48 mph, gusting to 72 mph.

Note: The measured wind gust of 63 knots is equivalent to 72 mph. Petroleum County Chain Buttes Raws 13 2122MST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

The Chain Buttes RAWS site measured a 61 mph wind gust. Note: The measured wind gust of 53 knots is equivalent to 61 mph. Valley County King Coulee Raws 13 2144MST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

The King Coulee RAWS site measured a 58 mph wind gust. Strong heating under a western states ridge combined with just enough instability to allow some strong thunderstorms to form over the higher elevations of central Montana and drift through eastern Montana. A few of these storms intensified and became severe. Note: The measured wind gust of 50 knots is equivalent to 58 mph. Mccone County 3 SSW Brockway 18 1950MST 2215MST 0 0 0.00K 0.00K Flash Flood

Heavy rainfall of up to 4 inches left up to a foot of water 100 yards across on Highway 253 near mile marker 42, causing the road to be closed down for several hours. The road was closed by the Sheriff's Department for several hours. An area farmer reported his fields were a large lake with water running across them.

A very moist surface layer combined with a near-stationary, large area of low pressure over the western states to produce slow- moving, efficient downpours. Wibaux County 23 NNW Beaver Hill Dot 25 0630MST 0 0 0.00K 0.00K Hail (1.00)

Public reported hail the size of quarters. Richland County 13 E Savage 25 0723MST 0 0 0.00K 0.00K Hail (0.88)

Public reported nickel-sized hail and estimated wind gusts of 30 mph.

Valley County 2 NNW Duck Creek 25 1610MST 0 0 0.00K 0.00K Hail (0.75)

Trained spotter reported penny-sized hail. Mccone County 1 SW Ft Peck Lake Handar 25 1630MST 0 0 0.00K 0.00K Hail (1.00)

Public reported quarter-sized hail. Valley County 4 ESE Glasgow Intl Airport 25 1655MST 0 0 0.00K 0.00K Hail (1.00)

Trained spotter reported walnut-sized hail. Mccone County 13 SE Ft Peck Lake Handar 25 1720MST 0 0 0.00K 0.00K Hail (2.50)

A National Weather Service employee reported tennis ball-sized hail.

Valley County 6 S Baylor 25 1745MST 0 0 0.00K 0.00K Hail (3.00)

Public reported tea cup-sized hail and over 1 inch of rain.

321 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MONTANA, East Valley County 1 NW Glasgow 25 1749MST 1820MST 0 0 0.00K 0.00K Hail (0.75)

NWS employee reported hail up to 8 inches deep in places on the west end of Glasgow. The hail was all less than 1 in size but it came down in two waves, the first just pea size hail and then a break and then larger hail to penny size that started accumululating and covering roads, parking lots and yards.

Garfield County 3 S Haxby Point 25 1800MST 0 0 0.00K 0.00K Hail (1.75)

Trained spotter reported golf ball-sized hail. Valley County 1 SE Saint Marie 25 1801MST 1806MST 0 0 0.00K 0.00K Hail (1.00)

Public reported quarter-sized hail. Garfield County 15 SW Haxby Point 25 1813MST 0 0 0.00K 0.00K Hail (1.25)

Trained spotter reported half dollar-sized hail. Mccone County 11 SE Ft Peck Lake Handar 25 1815MST 0 0 0.00K 0.00K Hail (1.75)

Trained spotter reported golf ball-sized hail. Valley County Glasgow 25 1825MST 1955MST 0 0 0.00K 0.00K Flash Flood

Public reported flooding at the Shady Rest trailer park near the East Side Elementary school and the Reynold's grocery store in Glasgow, both with 12 inches of standing water. Public also reported water backed-up and flooding the underpass between Albertson's grocery store and Valley Bank.

Mccone County 12 WSW Brockway 25 1905MST 0 0 0.00K 0.00K Hail (1.00)

Trained spotter reported hail up to the size of quarters. A moist surface layer feeding into the region from the southeast combined with an upper-level disturbance and moderate instability to produce many severe thunderstorms.

Garfield County 2 ENE South Sawmill Raws 26 1710MST 0 0 0.00K 0.00K Hail (1.00)

Trained spotter reported quarter-sized hail covering the ground.

Garfield County 2 NE South Sawmill Raws 26 1730MST 0 0 0.00K 0.00K Hail (1.75)

Public reported golf ball-sized hail and very heavy rain. Valley County 11 SSW Duck Creek 26 1940MST 0 0 0.00K 0.00K Hail (1.00)

Trained spotter reported quarter-sized hail and wind gusts of 60 mph.

Strong day-time heating and a moist, up-slope flow combined with moderate instability and sheer to produce some severe thunderstorms across portions of northeast Montana.

Prairie County Terry 27 1600MST 1610MST 0 0 0.00K 0.00K Funnel Cloud

322 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MONTANA, East

A cold air funnel was reported by the county Disaster and Emergency Services Coordinator over the town of Terry, and it was further verified with several photographs. It only lasted a few minutes before dissipating.

A cold air funnel was reported along with showers moving through Prairie into Dawson county.

Mccone County 7 WNW Brockway 31 0705MST 0 0 0.00K 0.00K Flood McCone county dispatch reported that part of Beauty Valley Road (a gravel road) was washed out due to run off from the heavy rainfall. Location is about 16 miles WSW of the town of Circle.

Richland County 29 NW Enid 31 0915MST 0 0 0.00K 0.00K Flood Trained spotter reported water flowing over a 35-foot stretch of county road 149 at a depth of about 2 inches. Location is about 6 miles SE of Poplar. A prolonged period of enhanced surface mosture streaming into eastern Montana from east to west combined with a short-wave disturbance to produce high rainfall rates across the area over multiple days.

MONTANA, South Custer County 1 NNE Ft Keogh 18 1725MST 1 SE (MLS)Wiley Fld Miles 1750MST 0 0 0.00K 0.00K Flash Flood

Very heavy rain along with nickel size hail fell during a short period of time. This resulted in flash flooding under the overpass in town. Some cars were stranded in flooded intersections. In addition, storm drains were overwhelmed and manhole covers jetted water into the streets.

Fallon County 3 WSW Ollie 18 1935MST 0 0 0.00K 0.00K Hail (1.75)

Dime to golf ball size hail measuring 3 inches deep was reported.

Fallon County 1 NW Ollie 18 1940MST 2140MST 0 0 0.00K 0.00K Flash Flood

Very heavy rain along with several inches of hail resulted in flash flooding. About a foot of water flowed over Ollie Road just east of Highway 7. In addition, several cattle were killed due to the rapid rise of flood waters.

Fallon County 1 NW Ollie 18 1940MST 0 0 0.00K 0.00K Hail (1.75)

Hail accumulated to several inches deep. Several slow moving thunderstorms producing hail and very heavy rain in a short period of time moved across portions of Custer and Fallon Counties.

MTZ033 Fallon 23 1107MST 1708MST 0 0 0.00K 0.00K High Wind

A surface low pressure across Wyoming produced a very tight pressure gradient across Southeast Montana and North Central Wyoming which resulted in very strong winds.

Carter County 1 N Ekalaka 25 1044MST 0 0 0.00K 0.00K Hail (1.00)

Carter County 21 WNW Ridgeway 25 1425MST 0 0 0.00K 0.00K Hail (1.00)

323 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MONTANA, South Carter County 16 SW Ekalaka 25 1437MST 0 0 0.00K 0.00K Hail (1.00)

Carter County Belltower 25 1558MST 0 0 0.00K 0.00K Hail (1.00)

Carter County 4 N Belltower 25 1607MST 0 0 0.00K 0.00K Hail (1.00)

Powder River County 8 SE (4BQ)Broadus Arpt 25 1633MST 0 0 0.00K 0.00K Hail (1.75)

Quarter to golf ball size hail was reported. Powder River County 6 E Broadus 25 1654MST 0 0 0.00K 0.00K Hail (1.75)

Powder River County 15 N Belle Creek Arpt 25 1725MST 0 0 0.00K 0.00K Hail (1.00)

Rosebud County Hathaway 25 1730MST 0 0 Hail (1.75)

Rosebud County 1 E Forsyth Arpt 25 1830MST 0 0 Hail (2.50)

A few hail stones were estimated to be 2 to 3 inches in diameter along I-94.

Rosebud County 4 NW Colstrip 25 1900MST 0 0 0.00K 0.00K Hail (1.00)

Rosebud County 12 SSW Joppa 25 2002MST 0 0 0.00K 0.00K Hail (1.00)

Steep lapse rates, moderate instability and vertically veering wind profiles with 40-50 kt deep-layer shear resulted in the development of severe thunderstorms producing large hail and funnel clouds across Southeast Montana.

Yellowstone County 1 S Shepherd 26 1545MST 0 0 0.00K 0.00K Hail (1.50)

Musselshell County 5 S Elso 26 1650MST 1830MST 0 0 0.00K 0.00K Flash Flood

There were numerous reports of flash flooding affecting all of the drainage's within the Dahl Fire burn scar area. Most of the private roads in the burn scar were reported as rivers and had severe erosion as most were over-topped.

Musselshell County 1 E Delphia 26 1715MST 1930MST 0 0 0.00K 0.00K Flash Flood

There were several reports of flash flooding within the Delphia Burn Scar area. Some area roads were affected by washouts.

Yellowstone County 3 NNW Custer 26 2005MST 0 0 0.00K 0.00K Hail (1.75)

Rainfall of 1.25 inches was reported with this thunderstorm.

324 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MONTANA, South Treasure County 14 S Sarpy Jct 26 2028MST 27 0000MST 0 0 0.00K 0.00K Flash Flood

Heavy rain and hail for about 45 to 50 minutes was reported along portions of Sarpy Creek and Sarpy Creek Road. Half inch diameter hail combined with mud piled up to 8 to 9 feet deep. The heavy rain and hail runoff took out trees and fences in its path.

Yellowstone County 3 WNW Custer 26 2100MST 2230MST 0 0 0.00K 0.00K Flash Flood

Seven Mile Road northwest of Custer was washed out due to flash flooding.

Treasure County 10 S Sarpy Jct 26 2130MST 0 0 0.00K 0.00K Hail (1.00)

Moderate instability and sufficient vertical shear resulted in the development of severe thunderstorms across portions of the Billings Forecast Area during the afternoon and evening hours of the 26th.

Musselshell County 6 S Klein 29 1400MST 4 SE Elso 1900MST 0 0 0.00K 0.00K Debris Flow

Flash flooding occurred in the Dahl Fire burn scar area, especially along the drainages on the western side of the burn area. Water flowed across Buckskin Road and flooding was also significant in the Harper Coulee.

Rosebud County 6 WSW Big Sky 29 1620MST 3 NNW Lame Deer 1900MST 0 0 0.00K 0.00K Flash Flood

Flash flooding occurred across a portion of the Chalky Fire burn scar area between Colstrip and Lame Deer. Water was reported to be over Highway 39. Heavy thunderstorms moved across the Dahl and Chalky Fire burn scar areas.

Custer County 4 SW Kinsey 30 0743MST 5 NW Tusler 31 1930MST 0 0 0.00K 0.00K Flood

Montana Department of Transportation reported flooding on Sand Creek which impacted Highway 489 around mile marker 13.5. Water was over the road at this location with up to 3 feet of water across the west bound lane. Minor flooding along area roads with a few culverts being washed out resulted in poor travel conditions across the area.

Powder River County 26 WNW Coalwood 30 0911MST 11 WNW Sonnette 31 2052MST 0 0 0.00K 0.00K Flood

Observations across the area indicated widespread 3 to 6 inches of rain fell across the area over the course of a few days. Emergency management reported that Home Creek along Highway 212 experienced some flooding. In addition, flooding of small streams and creeks occurred across the area along with debris flows on the Ash Creek burn scar area.

Rosebud County 6 ENE Brandenberg 30 0911MST 12 ESE Ashland 31 2052MST 0 0 0.00K 0.00K Flood

Observations across the area indicated widespread 3 to 6 inches of rain fell across the area over the course of a few days. Emergency management reported that Home Creek along Highway 212 experienced some flooding. In addition, flooding of small streams and creeks occurred across the area along with debris flows on the Ash Creek burn scar area.

Two Pacific low pressure systems brought abundant moisture to the Billings Forecast Area during the end of the month. This resulted in flooding of small streams and creeks, as well as across burn scar areas. The two storm systems resulted in above normal precipitation for the month.

325 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MONTANA, South MTZ038 Southern Big Horn 30 1215MST 31 1900MST 0 0 0.00K 0.00K High Wind

A strong surface low across Northeastern Wyoming produced a very tight pressure gradient and high winds across Southern Big Horn County. Rosebud County 5 NNE Angela 30 1555MST 14 N Brandenberg 31 2359MST 0 0 0.00K 0.00K Flood

County officials reported culverts washed out across the northeastern portions of the county, especially near Angela Road. Reservation Creek water was over the road between Old Hwy 10 and I-94. Minor flooding also occurred on River Basin Creek and other small streams and rivers in Rosebud County. In addition, some road closures occurred in the town of Forsyth.

Treasure County 57 NE Sanders 30 1555MST 31 2359MST 0 0 0.00K 0.00K Flood

Minor flooding occurred on River Basin Creek and other small streams and rivers in Treasure County.

Big Horn County 13 NNE Kirby 30 2056MST 3 WNW Decker 31 2359MST 0 0 0.00K 0.00K Flood

Lodge Grass and Pass Creeks were out of their banks and caused minor flooding. In addition, other small streams and creeks were flooded in and around the town of Wyola. Two Pacific low pressure systems brought abundant moisture to the Billings Forecast Area during the end of the month. This resulted in flooding of small streams and creeks, as well as across burn scar areas. The two storm systems resulted in above normal precipitation for the month.

MONTANA, West Flathead County Somers 09 0630MST 0 0 1.00K 0.00K Lightning

Scattered power outages were reported from Kalispell to Somers due to lightning strikes.

Ravalli County 7 ESE Florence 09 1630MST 0 1 0.00K 0.00K Lightning

A 22 year old male was struck by lightning while changing an irrigation pipe. Injuries were reported as second degree burns.

Scattered thunderstorms brought power outages to portions of northwest Montana while a man was injured by lightning in Ravalli county. Flathead County 1 ESE Columbia Falls 13 0145MST 2 S Half Moon 15 1100MST 0 0 0.00K 0.00K Flood

Farmer crops adjacent to the Flathead River between Evergreen and Columbia Falls were inundated with water.

Snow-melt caused by unseasonably warm temperatures reaching the middle 80s allowed for northwest Montana rivers to rise to minor flood stages. Missoula County Carlton 13 1600MST 0 0 0.00K 0.00K Hail (1.00)

Tree branches 2 inches in diameter broken off trees and branches stripped of leaves.

A strong upper level wave moved into Washington State providing the necessary ingredients for a southwest flow severe thunderstorm event to setup. Very strong wind shear combined with meager instability and dew points in the 50s across north- central Idaho allowed for storms to develop in the afternoon. A few of these storms developed into supercells, one of which brought large hail and gusty winds to the Bitterroot Valley. A very strong cold front moved across Idaho into Western Montana by the evening hours providing gusty winds between 40 and 56 mph which brought down a few trees and power lines.

326 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MONTANA, West Flathead County 11 NNW Polebridge Sonderson 13 1600MST 14 1800MST 0 0 0.00K 0.00K Flood

Minor flooding occurred across low lying areas adjacent to the north fork of Flathead river.

Snow-melt caused by unseasonably warm temperatures reaching the middle 80s allowed for northwest Montana rivers to rise to minor flood stages. Missoula County 1 SE Orchard Homes 13 1610MST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

Power lines were reported down across Mullan Rd. Large tree branches were reported down at the Missoula Country Club golf course. Large trees were also reported down in the university district and along Daly Avenue.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

MTZ003 Flathead/Mission Valleys 13 1845MST 1900MST 0 0 3.0K 0.00K Strong Wind

A strong upper level wave moved into Washington State providing the necessary ingredients for a southwest flow severe thunderstorm event to setup. Very strong wind shear combined with meager instability and dew points in the 50s across north- central Idaho allowed for storms to develop in the afternoon. A few of these storms developed into supercells, one of which brought large hail and gusty winds to the Bitterroot Valley. A very strong cold front moved across Idaho into Western Montana by the evening hours providing gusty winds between 40 and 56 mph which brought down a few trees and power lines.

Very strong winds gusting to 56 mph associated with a cold front blew down several trees in the Creston, MT area including this ~40 inch in diameter Ponderosa Pine. Image courtesy of Todd Johnson. Lincoln County 5 W Yaak 13 1945MST 14 1430MST 0 0 0.00K 0.00K Flood

A forest service employee reported minor flooding on the Yaak River at the Whitetail campground.

Flathead County 2 ENE West Glacier 14 0130MST 1845MST 0 0 0.00K 0.00K Flood

Minor flooding occurred to agricultural lands in the low lying areas adjacent to the middle fork of the Flathead River near West Glacier. Snow-melt caused by unseasonably warm temperatures reaching the middle 80s allowed for northwest Montana rivers to rise to minor flood stages.

327 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MONTANA, West MTZ003 Flathead/Mission Valleys 21 1955MST 2200MST 0 0 0.5K 0.00K Strong Wind

21 2155MST 0 0 0.00K 0.00K High Wind An upper level wave moved from southwest to northwest Montana during the day invoking strong down-slope winds across Flathead Lake that lasted around 2 hours and for a brief moment at the Kalispell International Airport. The high winds caused 4 foot waves with some minor beach erosion on the west side of the lake.

MTZ007 Butte/Blackfoot Region 22 2258MST 23 1037MST 0 0 2.0K 0.00K Heavy Snow

Photo of heavy snow in Philipsburg, Montana on May 23, 2013. Photo is courtesy of Larry Craig.

MTZ002-043 Potomac/Seeley Lake Region - West Glacier Region 23 0500MST 1000MST 0 0 2.5K 0.00K Heavy Snow

A cold upper level weather system combined with ample moisture and good jet support brought periods of heavy snow to portions of western Montana. Power outages were reported in the Swan Valley while slick roads made travel difficult across southwest Montana.

NEBRASKA, Central

NEZ004>010-022> Arthur - Blaine - Boyd - Brown - Chase - Custer - Deuel - Eastern Cherry - Frontier - Garden - Garfield - 029-035>038-056> Grant - Hayes - Holt - Hooker - Keith - Keya Paha - Lincoln - Logan - Loup - McPherson - Perkins - Rock 059-069>071-094 - Sheridan - Thomas - Western Cherry - Wheeler 01 0000MST 31 2359MST 0 0 0.00K 0.00K Drought

The drought that began in June of 2012 lingered in May, although thunderstorms produced some significant rainfall to further ease the ongoing drought. All areas received a minimum of two inches of rainfall and some over eight inches. The areal coverage of the Exceptional Drought (D4) conditions in western Nebraska was reduced to focus over the south central sandhills, while a larger portion of northern and north central Nebraska were lowered into the category of Severe Drought.

Sheridan County 18 SSE Clinton 07 1755MST 0 0 0.00K 0.00K Hail (0.75)

Three quarter inch hail piled up four inches deep.

328 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, Central Cherry County Valentine 07 1853CST 0 0 0.00K 0.00K Hail (0.88)

Isolated thunderstorms developed across northwest Nebraska near a surface trough. Although a couple of the storms were strong, no severe reports were received.

Hayes County 10 S Hayes Center 16 1355CST 0 0 0.00K 0.00K Hail (1.00)

Cherry County 25 SSE Irwin 16 1854CST 0 0 0.00K 0.00K Hail (0.88)

Cherry County 26 S Merriman 16 1855CST 0 0 0.00K 0.00K Hail (1.00)

A disturbance ejected northeast from an upper level low pressure system anchored across the western United States. A few severe thunderstorms resulted across the region.

Sheridan County 15 S Hay Spgs 17 1411MST 0 0 0.00K 0.00K Hail (1.75)

Sheridan County 8 NNW Antioch 17 1552MST 0 0 0.00K 0.00K Hail (1.00)

Sheridan County 11 N Ellsworth 17 1712MST 0 0 0.00K 0.00K Hail (1.75)

Sheridan County 1 S Lakeside 17 1745MST 0 0 0.00K 0.00K Hail (1.00)

Sheridan County 1 SW Ellsworth 17 1800MST 0 0 0.00K 0.00K Hail (1.25)

Sheridan County 2 NNW Ellsworth 17 1800MST 0 0 0.00K 0.00K Hail (1.50)

Garden County 6 NE Lisco 17 1810MST 0 0 0.00K 0.00K Hail (1.00)

Sheridan County 6 ENE Ellsworth 17 1820MST 0 0 0.00K 0.00K Hail (1.00)

Sheridan County 10 NE Ellsworth 17 1824MST 0 0 0.00K 0.00K Hail (1.50)

Garden County 23 NNE Oshkosh 17 1853MST 0 0 0.00K 0.00K Hail (1.00)

Grant County 8 S Ashby 17 1955MST 0 0 0.00K 0.00K Funnel Cloud

Grant County 3 ESE Ashby 17 2037MST 0 0 0.00K 0.00K Hail (1.50)

Cherry County 43 S Irwin 17 2043CST 0 0 0.00K 0.00K Hail (1.00)

329 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, Central Grant County 5 NW Hyannis 17 2100MST 0 0 0.00K 0.00K Hail (1.00)

Cherry County 23 SSW Irwin 18 0115CST 0 0 0.00K 0.00K Hail (0.88)

A strong shortwave trough and associated upper level low began to influence the weather conditions, with a stationary front across far northern Nebraska and a dry line across far western Nebraska. Scattered severe thunderstorms focused along the aforementioned boundaries. Cherry County 26 S Irwin 18 0937CST 0 0 0.00K 0.00K Heavy Rain

Sheridan County 16 SSE Clinton 18 1025MST 0 0 0.00K 0.00K Heavy Rain

Mcpherson County 18 WSW Tryon 18 1415CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

Two 15,000 bushel bins were damaged with one moved off the foundation. A 500 gallon fertilizer plastic tank was also blown over a mile away. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Arthur County 7 WSW Bucktail 18 1435MST 0 0 0.00K 0.00K Hail (1.00)

Keith County 5 SSW Lake Mc Conaghy 18 1455MST 0 0 0.00K 0.00K Hail (1.00)

Arthur County 1 W Bucktail 18 1515MST 0 0 0.00K 0.00K Hail (1.00)

Sheridan County 12 SW White Clay 18 1615MST 0 0 0.00K 0.00K Hail (1.00)

Deuel County 3 W Chappell 18 1630MST 1645MST 0 0 0.00K 0.00K Hail (1.00)

Sheridan County 10 SW White Clay 18 1630MST 0 0 0.00K 0.00K Hail (1.00)

Sheridan County 10 S Rushville 18 1640MST 0 0 0.00K 0.00K Hail (1.75)

Chase County 6 WSW Enders Res 18 1650MST 0 0 0.00K 0.00K Hail (2.50)

Sheridan County 12 WSW White Clay 18 1650MST 0 0 0.00K 0.00K Hail (1.00)

Deuel County 6 ENE Chappell 18 1700MST 0 0 0.00K 0.00K Hail (1.25)

Deuel County 6 ENE Chappell 18 1700MST 1715MST 0 0 0.00K 0.00K Hail (1.00)

330 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, Central Keith County 8 S Paxton 18 1704MST 0 0 0.00K 0.00K Hail (1.50)

Deuel County 1 S Chappell 18 1705MST 0 0 0.00K 0.00K Hail (0.88)

Deuel County 4 WSW Big Spgs 18 1706MST 0 0 0.00K 0.00K Thunderstorm Wind (54MG) Note: The measured wind gust of 54 knots is equivalent to 62 mph.

Deuel County 3 N Big Spgs 18 1711MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Trees down on Highway 22. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Sheridan County 8 SSE Rushville 18 1717MST 0 0 0.00K 0.00K Hail (1.75)

Perkins County 3 NE Grant 18 1729MST 0 0 0.00K 0.00K Hail (1.00)

Perkins County 8 N Grant 18 1741MST 0 0 0.00K 0.00K Hail (1.00)

Garden County 3 SSE Lewellen 18 1745MST 1750MST 0 0 1.00K 0.00K Thunderstorm Wind (58ES)

A few cedar trees twisted with trunks broken and numerous limbs down.

Note: The estimated wind speed of 58 knots is equivalent to 67 mph. Keith County 3 WSW Lake Mc Conaghy 18 1745MST 1750MST 0 0 0.00K 0.00K Thunderstorm Wind (57EG)

Large tree limbs downed. Note: The estimated wind gust of 57 knots is equivalent to 66 mph. Keith County 3 WSW Lake Mc Conaghy 18 1745MST 1750MST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)

Strong winds caused a large elm tree limb to fall onto a house damaging the porch awning.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Keith County 3 WSW Lake Mc Conaghy 18 1745MST 1750MST 0 0 3.00K 0.00K Thunderstorm Wind (52ES)

South facing roof shingles were damaged and blown off a portion of a house.

Note: The estimated wind speed of 52 knots is equivalent to 60 mph. Keith County 3 WSW Lake Mc Conaghy 18 1745MST 1750MST 0 0 8.00K 0.00K Thunderstorm Wind (82ES)

Thunderstorm winds destroyed a small metal garage. Note: The estimated wind speed of 82 knots is equivalent to 94 mph.

331 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, Central Deuel County 10 NE Chappell 18 1749MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Power lines down at county roads 185 and 22. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Garden County 3 E Lewellen 18 1750MST 1755MST 0 0 40.00K 0.00K Thunderstorm Wind (61ES)

Seven tower center pivot irrigation system overturned. Note: The estimated wind speed of 61 knots is equivalent to 70 mph. Garden County 3 E Lewellen 18 1750MST 1755MST 0 0 25.00K 0.00K Thunderstorm Wind (81ES)

Several large tree limbs down and hardwood trees trunks were snapped. Power lines were down in the vicinity as well.

Note: The estimated wind speed of 81 knots is equivalent to 93 mph. Keith County 2 SSW Keystone 18 1757MST 0 0 0.00K 0.00K Hail (1.00)

Arthur County 2 NNE Lena 18 1815MST 0 0 0.00K 0.00K Hail (1.00)

Arthur County Bucktail 18 1815MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Public reported winds estimated to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Logan County 12 NNW Stapleton 18 1830CST 0 0 0.00K 0.00K Hail (0.88)

Chase County 2 E (IML)Imperial Arpt 18 1835MST 0 0 0.00K 0.00K Hail (1.00)

Hooker County 1 SW Mullen 18 1845MST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Flag pole snapped, shingles off house, and a privacy fence blown down.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Lincoln County 2 N Hershey 18 1915CST 0 0 0.00K 0.00K Funnel Cloud

Blaine County 3 ESE Purdum 18 1915CST 0 0 0.00K 0.00K Hail (1.00)

Cherry County 6 N Elsmere 18 1925CST 0 0 0.00K 0.00K Hail (0.88)

Lincoln County 2 ESE Hershey 18 1934CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Large tree uprooted across Game Trail Road north of Highway 30.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

332 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, Central Logan County 1 E Stapleton 18 1959CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Small branches down. A potent upper level low pressure system and associated strong shortwave, sparked scattered to numerous severe thunderstorms across western and north central Nebraska. The Storm Prediction Center had much of the area in a moderate risk for severe storms. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Garfield County 5 E Burwell 19 1508CST 0 0 0.00K 0.00K Hail (1.00)

Wheeler County 1 SE Ericson 19 1545CST 0 0 0.00K 0.00K Hail (1.00)

Loup County 8 E Taylor 19 1620CST 0 0 0.00K 0.00K Hail (1.00)

Loup County 12 NE Almeria 19 1635CST 0 0 0.00K 0.00K Hail (1.25)

Wheeler County Ericson 19 1646CST 0 0 0.00K 0.00K Hail (1.00)

A cold upper level low pressure system slowly moving east across the northern plains, was responsible for isolated severe thunderstorms during the late afternoon.

Deuel County 1 NNE Big Spgs 24 1635MST 0 0 0.00K 0.00K Hail (0.75)

Keith County 1 E Brule 24 1700MST 0 0 0.00K 0.00K Hail (0.88)

Perkins County 1 SW Venango 24 1704MST 0 0 0.00K 0.00K Hail (1.25)

Keith County 4 S Lake Mc Conaghy 24 1721MST 0 0 0.00K 0.00K Hail (1.00)

Keith County 3 WNW Keystone 24 1758MST 0 0 0.00K 0.00K Hail (1.75)

Keith County 6 ENE Lake Mc Conaghy 24 1804MST 0 0 0.00K 0.00K Hail (1.75)

Perkins County 8 S Grant 24 1821MST 0 0 0.00K 0.00K Hail (1.00)

Keith County 7 NW Lemoyne 24 1836MST 0 0 0.00K 0.00K Hail (2.00)

Perkins County 8 SSE Grant 24 1845MST 0 0 0.00K 0.00K Hail (1.50)

Perkins County 8 S Madrid 24 1902MST 0 0 0.00K 0.00K Hail (1.00)

333 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, Central Lincoln County 6 N Wallace 24 1936CST 0 0 0.00K 0.00K Hail (1.75)

Perkins County 10 SW Grainton 24 1936MST 0 0 0.00K 0.00K Hail (1.75)

Perkins County 3 S Grainton 24 1947MST 0 0 0.00K 0.00K Hail (1.75)

Lincoln County 6 S Wallace 24 2120CST 0 0 15.00K 0.00K Hail (2.75)

Hail shattered double and triple pane windows, damaged siding, and left divots in the ground.

Lincoln County 8 S Wallace 24 2145CST 0 0 3.00K 0.00K Hail (2.00)

Car windows broken from hail. Frontier County 3 NNE Curtis 24 2315CST 0 0 0.00K 0.00K Hail (1.00)

A warm front moving east across western Nebraska was the focus for scattered severe thunderstorms.

Custer County 10 SW Berwyn 25 0224CST 0 0 0.00K 0.00K Hail (1.50)

Hayes County 10 SE Hayes Center 25 1805CST 0 0 0.00K 0.00K Hail (0.88)

Frontier County 1 S Maywood 25 1810CST 0 0 0.00K 0.00K Hail (1.75)

Frontier County 4 N Curtis 25 1825CST 0 0 0.00K 0.00K Hail (1.75)

Custer County 12 W Oconto 25 1915CST 0 0 0.00K 0.00K Hail (2.00)

Lincoln County 3 E Maxwell 25 1927CST 0 0 0.00K 0.00K Hail (1.00)

Custer County 5 WSW Berwyn 25 2005CST 0 0 0.00K 0.00K Hail (0.88)

Custer County 1 E Westerville 26 1855CST 0 0 0.00K 0.00K Hail (2.50)

Blaine County 3 NW Brewster 26 1910CST 0 0 0.00K 0.00K Hail (1.50)

Custer County Berwyn 26 1910CST 0 0 0.00K 0.00K Hail (2.50)

Custer County 2 E Westerville 26 1915CST 0 0 0.00K 0.00K Hail (1.00)

334 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, Central Custer County 1 W Westerville 26 1920CST 0 0 0.00K 0.00K Hail (3.00)

Custer County 7 E Westerville 26 1934CST 0 0 0.00K 0.00K Funnel Cloud

Blaine County 5 N Brewster 26 1945CST 0 0 0.00K 0.00K Hail (1.75)

Brown County 23 S Johnstown 26 1950CST 0 0 0.00K 0.00K Hail (1.00)

Holt County 2 ESE (ONL)O Neill Arpt 26 2025CST 0 0 0.00K 0.00K Hail (1.00)

Holt County 15 N Stuart 26 2045CST 0 0 0.00K 0.00K Hail (1.25)

Blaine County 7 E Dunning 26 2050CST 0 0 0.00K 0.00K Hail (1.50)

Blaine County 4 E Halsey 26 2108CST 0 0 0.00K 0.00K Hail (1.00)

Loup County 6 NE Taylor 26 2320CST 0 0 0.00K 0.00K Hail (1.00)

Scattered severe thunderstorms developed along and south of a stationary front located across northern Nebraska.

Keith County 1 W Ogallala 27 1735MST 0 0 0.00K 0.00K Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Lincoln County 1 SSE North Platte 27 1920CST 0 0 0.00K 0.00K Hail (1.00)

A stationary front across northern Kansas was the focus for numerous severe thunderstorms, where the Storm Prediction Center had a moderate risk. To the north of the front across our area, widely scattered thunderstorms also occurred.

Garden County 18 NNE Lewellen 28 2037MST 0 0 0.00K 0.00K Hail (1.50)

Perkins County 3 NW Grant 28 2130MST 0 0 0.00K 0.00K Hail (1.00)

Perkins County 6 SW Elsie 28 2150MST 0 0 0.00K 0.00K Hail (1.00)

Mcpherson County 10 N Tryon 28 2325CST 0 0 0.00K 0.00K Hail (1.00)

Mcpherson County 10 N Tryon 28 2325CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Reports of four inch diameter tree branches down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

335 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, Central Lincoln County 1 W Hershey 28 2350CST 0 0 0.00K 0.00K Hail (1.00)

Scattered severe thunderstorms developed May across western Nebraska in a post frontal up slope environment.

Lincoln County 8 SSW North Platte 29 0016CST 0 0 100.00K 0.00K Thunderstorm Wind (78EG)

Straight line winds between 65 and 90 mph destroyed a pole barn that measured 73 by 30 feet. That debris hit a second building, damaging the roof, south wall, and windows. Note: The estimated wind gust of 78 knots is equivalent to 90 mph. Brown County 25 S Johnstown 29 0130CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Large limbs blown down, and a metal tractor rim was thrown twenty yards.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Frontier County 1 E Curtis 29 1212CST 0 0 0.00K 0.00K Hail (1.00)

Lincoln County Maxwell 29 1249CST 0 0 0.00K 0.00K Hail (1.00)

Hayes County 10 SSE Hayes Center 29 1259CST 0 0 0.00K 0.00K Hail (1.00)

Hayes County 10 S Hayes Center 29 1259CST 0 0 0.00K 0.00K Hail (1.00)

Chase County 7 SSE Champion 29 1320MST 0 0 0.00K 0.00K Hail (1.00)

Chase County 5 SSW Champion 29 1333MST 0 0 0.00K 0.00K Hail (1.50)

Hayes County 1 W Hayes Center 29 1400CST 0 0 0.00K 0.00K Hail (1.00)

Lincoln County 10 N Brady 29 1408CST 0 0 0.00K 0.00K Hail (1.00)

Lincoln County 8 WSW Wellfleet 29 1416CST 0 0 0.00K 0.00K Hail (1.25)

Lincoln County 11 NE Maxwell 29 1432CST 0 0 0.00K 0.00K Hail (1.50)

Custer County 8 SW Callaway 29 1441CST 0 0 0.00K 0.00K Hail (1.50)

Custer County 5 NNW Callaway 29 1507CST 0 0 0.00K 0.00K Hail (1.25)

Custer County 3 N Weissert 29 1525CST 0 0 0.00K 0.00K Hail (1.75)

336 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, Central Custer County 2 E Merna 29 1535CST 0 0 0.00K 0.00K Flash Flood Flood water flowing across the road. Custer County 2 WNW Sargent 29 1545CST 0 0 0.00K 0.00K Hail (1.75)

Custer County 1 NW Comstock 29 1546CST 0.25 35 0 0 0.00K 0.00K Tornado (EF0)

At 1545CST, a tornado briefly touched down a half mile west of Comstock with no damage produced. Average path width was 35 yards. Garfield County Burwell 29 1610CST 0 0 0.00K 0.00K Hail (1.25)

Garfield County 8 NE Burwell 29 1628CST 0 0 0.00K 0.00K Hail (1.00)

Garfield County 8 NE Burwell 29 1630CST 0 0 0.00K 0.00K Hail (1.00)

Wheeler County 3 SW Bartlett 29 1708CST 0.2 35 0 0 0.00K 0.00K Tornado (EF0)

At 1708CST, a tornado briefly touched down 3 miles southwest of Bartlett with no damage produced. Average path width was 35 yards. Holt County 3 WNW Inman 29 1713CST 0 0 0.00K 0.00K Hail (1.00)

Holt County 2 ESE (ONL)O Neill Arpt 29 1720CST 0 0 0.00K 0.00K Hail (1.00)

Holt County 5 ENE O Neill 29 1730CST 0 0 20.00K 0.00K Thunderstorm Wind (61EG)

Three center pivots were overturned, with two large trees also uprooted.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Custer County 5 NNW Berwyn 29 1821CST 8 NE Oconto 30 0008CST 0 0 40.00K 0.00K Flash Flood

Thunderstorms trained to produced 3 to 5 inches of heavy rainfall where emergency management reported flooding with water over some roads in Broken Bow, a bridge was washed out on the Callaway Road and flooding over the road 4 miles west of Broken Bow. A deep upper level trough of low pressure intersected a cold front, with strong to severe thunderstorm development the result.

NEBRASKA, East

NEZ011-015>018- Antelope - Boone - Burt - Butler - Cass - Cedar - Colfax - Cuming - Dodge - Douglas - Knox - Lancaster - 030>034-042>045- Madison - Pierce - Platte - Saline - Sarpy - Saunders - Seward - Stanton - Thurston - Washington - Wayne 050>053-065>067- 078 01 0000CST 0 0 0.00K 0.00K Drought 28 Drought conditions continued improving across eastern Nebraska in May eventually ending or upgrading into the Moderate or Abnormally Dry. Widespread rainfall of 5 to 8 inches fell over a large part of eastern Nebraska during the month, in some cases at least several inches above normal.

337 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, East NEZ012-045-051> Cass - Cedar - Douglas - Lancaster - Otoe - Saline - Sarpy - Saunders - Seward - Washington 053-065>068-078 01 0400CST 0215CST 0 0 0.00K 0.00K Winter Weather

A unseasonably cold upper level system brought snow, or sleet that changed to snow to much of eastern Nebraska. The cold air rushed into northeast Nebraska during the morning of May 1st, causing rain to change to snow north of Norfolk before the morning commute. Otherwise the rain changed to sleet or snow late on May 1st and continued into the early morning hours of May 2nd. Snow and sleet intensities were enhanced by scattered thunderstorms that moved across the area. Snowfall totals of 1 to 3 inches fell over most of the region with a swath of 3 to 5 inches reported from near Lincoln and Wahoo northeast through Omaha and Blair. The snow and sleet created slushy and rutted roads and winds gusting over 20 mph combined with poor visibilities in moderate snow making for a period of difficult driving conditions which caused some vehicles to slide into ditches. Cedar County 1 NW Fordyce 08 1740CST 0 0 0.00K 0.00K Hail (0.75)

Cedar County 3 NW Fordyce 08 1753CST 0 0 0.00K 0.00K Hail (0.75)

The hail was reported near the Jct of Highways 12 and 81. Jefferson County 6 SE Thompson 08 2030CST 0 0 0.00K 0.00K Hail (1.25)

Hail up to half-dollar size fell south of Fairbury. Some of the hail was still on the ground that next morning.

Jefferson County 2 ESE Fairbury Arpt 08 2056CST 0 0 0.00K 0.00K Hail (0.75)

Jefferson County 1 SW Fairbury 08 2113CST 0 0 0.00K 0.00K Hail (0.75)

Strong to severe thunderstorms that developed near a warm front in Kansas during the evening of May 8th tracked into southeast Nebraska near Fairbury. One storm produced hail up to around half-dollar size. A little earlier in the evening isolated thunderstorms developed south of a weak upper low that was tracking across southeast South Dakota. One of these storms produced hail around penny-size in Cedar county.

Richardson County 3 S Falls City Arpt 15 1900CST 0 0 0.00K 0.00K Hail (0.75)

Richardson County 1 W Falls City 15 1930CST 0 0 0.00K 0.00K Hail (0.75)

Reported on the west side of Falls City. Isolated thunderstorms developed along and stalled front in extreme southeast Nebraska during the late afternoon of May 15th. The storms produced a few reports of penny-size hail.

Wayne County 2 SSE Carroll 16 1348CST 1353CST 0 0 0.00K 0.00K Hail (0.75)

Hail up to around dime-size fell for about 5 minutes. Wayne County 2 N Winside 16 1353CST 0 0 0.00K 0.00K Hail (1.00)

Hail up to quarter-size was reported by a spotter in the area.

An upper level disturbance that tracked across Nebraska during the late morning and early afternoon of May 15th brought an area of thunderstorms that moved from western through northeast Nebraska. An isolated storm produced large hail in northeast Nebraska.

338 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, East Platte County 1 E Columbus 18 2131CST 0 0 Thunderstorm Wind (50EG)

Thunderstorm wind gusts caused spotty tree damage in Columbus including a large hackberry tree which was downed in the town square which damaged a statue and ceremonial cannon. Some power outages were also noted in town.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Jefferson County 1 SW Fairbury 18 2231CST 0 0 0.00K 0.00K Hail (1.00)

Jefferson County 1 N Jansen 18 2233CST 0 0 0.00K 0.00K Hail (1.00)

Gage County 5 WSW Holmesville 18 2240CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts estimated at around 60 mph took the roof off of a shed along Highway 77 south of Beatrice.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Saline County Swanton 18 2244CST 0 0 Thunderstorm Wind (60EG)

Thunderstorm wind gusts estimated at 60 to 70 mph downed several trees and caused other tree damage in Swanton. Some of the felled trees caused vehicle and house damage. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Richardson County Rulo 18 2315CST 0 0 Thunderstorm Wind (50EG)

Thunderstorm wind gusts estimated at close to 60 mph caused some tree damage in the Rulo area. A swing set also sustained significant damage. Moderately unstable conditions developed over eastern Nebraska during the afternoon and evening of May 18th as temperatures warmed into the 80s and dew point temperatures reached the mid to upper 60s. As an upper level trough approached from the Rockies, thunderstorms developed in western Nebraska and western Kansas. These storms moved east across eastern Nebraska and western Iowa and produced isolated areas of wind damage. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Gage County Liberty 19 1310CST 0 0 0.00K 0.00K Hail (1.00)

The hail was mostly nickel-size but a few reached quarter-size.

Cass County 1 SE Plattsmouth 19 1433CST 0 0 Hail (1.25)

The hail was accompanied by thunderstorm winds which caused tree damage in town.

Cass County 1 SE Plattsmouth 19 1435CST 0 0 Thunderstorm Wind (61EG)

Thunderstorm wind gusts estimated at 65 to 70 mph downed trees in the Plattsmouth area, some of which caused vehicle and house damage. The winds were accompanied by hail that reached half dollar-size.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Richardson County 1 W Humboldt 19 1515CST 0 0 Hail (1.00)

The hail fell along with thunderstorm wind gusts estimated at 60 mph.

339 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, East Richardson County 1 W Humboldt 19 1515CST 0 0 Thunderstorm Wind (52EG)

Thunderstorm winds estimated at around 60 mph were accompanied by hail around quarter-size.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Nemaha County 1 W Auburn 19 1530CST 0 0 Thunderstorm Wind (70MG)

A home weather station measured a thunderstorm wind gust of 80 mph. This same storm caused damage around the Nemaha area. Note: The measured wind gust of 70 knots is equivalent to 81 mph. Nemaha County 1 NW Nemaha 19 1535CST 0 0 Thunderstorm Wind (70EG)

Thunderstorm wind gusts estimated at 70 to 80 mph destroyed one grain bin and partially flattened two others near Nemaha. Some other outbuilding and tree damage was noted. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Nemaha County 1 WNW Nemaha 19 1536CST 1539CST 0 0 Hail (2.00)

Hail up to 2 inches in diameter fell in the Auburn area. The hail was accompanied by wind gusts that were measured at 80 mph by home weather equipment. Richardson County 1 W Humboldt 19 1626CST 0 0 0.00K 0.00K Hail (0.88)

Platte County 1 NE Platte Center 19 1755CST 0 0 0.00K 0.00K Hail (1.00)

Burt County 6 S Craig 19 1958CST 0 0 Thunderstorm Wind (56MG)

Home weather equipment measured a thunderstorm gust of 64 mph from a line of storms that bowed out through the Craig area before weakening. As low pressure aloft deepened from western Nebraska into South Dakota, thunderstorms developed across central and eastern Nebraska during the early to mid afternoon hours. Temperatures climbed into the 70s and 80s and dew point temperatures in the 60s created moderately unstable conditions across the region. Several lines of severe thunderstorms moved across the area producing some wind damage along with several reports of large hail. Note: The measured wind gust of 56 knots is equivalent to 64 mph. Knox County 6 ENE Venus 26 2035CST 0 0 0.00K 0.00K Hail (1.00)

Antelope County 1 W Clearwater 26 2157CST 0 0 0.00K 0.00K Hail (0.75)

Madison County 1 S Tilden 26 2230CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Tree branches were blown down in the city of Tilden from the strong winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Madison County Norfolk 26 2312CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Winds near 60 mph resulted in a highway sign being blown down in the Norfolk area.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

340 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, East Stanton County 1 E Stanton 26 2339CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

Trees branches of 6 to 8 inches were reported downed by the strong winds in the city of Stanton. There were also reports of downed power lines. Note: The measured wind gust of 50 knots is equivalent to 58 mph. Dodge County 1 SE Fremont 27 0037CST 0040CST 0 0 0.00K 0.00K Thunderstorm Wind (67MG)

A measured gust of 77 mph was recorded at the Fremont Airport. As these winds moved through the city tree and power line damage was scattered throughout the city. Note: The measured wind gust of 67 knots is equivalent to 77 mph. Douglas County 1 E Dundee 27 0125CST 1 SE North Omaha 0127CST 0 0 0.00K 0.00K Thunderstorm Wind (58MG)

Scattered 3 inch tree limbs were reported downed by the strong winds near the 61st and Blondo area of central Omaha. A measured wind gust to 67 mph occurred in the Miller Park area resulting in tree and power line damage.

Note: The measured wind gust of 58 knots is equivalent to 67 mph. Saline County 1 W Crete 27 0239CST 0 0 0.00K 0.00K Hail (0.75)

Nemaha County 1 SW Auburn 27 0326CST 0 0 0.00K 0.00K Hail (0.75)

This was the first event of an unsettled weather pattern that set up over the central Plains for the last several days in May. Warm moist air was returning to eastern Nebraska as a warm front moved north into the area. Temperatures climbed into the 80s and dew points increased into the 60s by late afternoon over central Nebraska. This led to increasing instability, and eventually scattered thunderstorms by early evening. Thunderstorms initially developed over far northeast Nebraska during the evening hours, but as more thunderstorms moved into northeast Nebraska late in the evening, a forward propagating complex developed and moved southeast across eastern Nebraska eventually exiting into northeast Kansas and southwest Iowa. Initially isolated large hail fell, but as the line of thunderstorms developed, sporadic wind damage was produced over parts of northeast and east central Nebraska.

Saline County 4 S Tobias 27 1922CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Winds estimated to 70 mph downed several power poles. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Jefferson County 1 N Shea 27 1951CST 3 S Harbine 1956CST 3.28 100 0 0 0.00K Tornado (EF0)

A tornado developed near 6 miles east of Fairbury and traveled just over 3 miles in an east northeast direction ending just over 2 miles south southeast of Harbine. The tornado damage was generally minor including overturned center pivot irrigation systems, tree damage, and farm outbuildings.

Jefferson County 3 ESE Harbine 27 2002CST 2006CST 5.93 600 0 0 0.00K 0.00K Tornado (EF2)

A NWS storm survey indicated that a tornado developed approximately 2 miles south of Harbine. The tornado traveled in an east northeast direction impacting several farmsteads in Jefferson County. There was minor damage to 4 houses, and 5 out buildings were damaged beyond repair. Other damage included over-turned center pivots and tree damage. Approximately 2 miles east southeast of Harbine the tornado produced damage consistent with a weak EF2 tornado on the Enhanced Fujita Scale. Here a large recently well-built metal outbuildings were destroyed, minor damage was done to a home, and 2X4 boards were driven into the ground.

341 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, East Gage County 4 SSW Beatrice 27 2016CST 2020CST 1.36 100 0 0 0.00K 0.00K Tornado (EF0)

A NWS storm survey revealed a weak tornado developed about 2 miles southwest of Beatrice and traveled northeast for just over a mile before dissipating. The tornado was weak producing damage consistent with EF0 consisting of broken hardwood tree branches and minor damage to outbuildings.

Gage County 1 W Beatrice 27 2018CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

The public reported winds gusts to near 60 mph in the city of Beatrice. This resulted in downed tree branches in the city of Beatrice. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jefferson County 1 W Fairbury 27 2030CST 2143CST 0 0 0.00K 0.00K Flash Flood

Repeated heavy rainfall from thunderstorms produced 2 to 3 inches of rainfall in the Fairbury area leading to flash flooding in the city. Several intersections were flooded in town.

Gage County 1 NW Beatrice 27 2141CST 2241CST 0 0 0.00K 0.00K Flash Flood

Heavy thunderstorm rains of 2 to 3 inches fell across the city of Beatrice. This led to several intersections in the city to become flooded. Gage County 1 NNW Cortland 27 2143CST 2243CST 0 0 0.00K 0.00K Flash Flood

Heavy thunderstorm rains of 2 to 3 inches fell across the city of Cortland in a short time leading to flash flooding. Water covered highway 77 in Cortland. Richardson County 1 N Shubert 27 2200CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Power lines were reported downed by strong thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Richardson County Falls City 27 2203CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

A wind gust to 58 mph was measured by the Falls City ASOS equipment.

Thunderstorms developed along a stationary boundary near the Kansas and Nebraska border on the afternoon of May 27th. Due to high amounts of instability and shear in the atmosphere these thunderstorms quickly became severe. The thunderstorms moved east over southern Nebraska, moving into southeast Nebraska by early evening. Although other isolated severe weather was reported, one particular storm moving through Jefferson and Gage Counties produced the majority of the severe weather. The storm complex exited southeast Nebraska prior to midnight producing severe weather around the Falls City Nebraska area. Note: The measured wind gust of 50 knots is equivalent to 58 mph. Antelope County 114 SSE Tilden 28 0535CST 31 0955CST 0 0 0.00K 0.00K Flood

Due to persistent heavy rainfall across the Turkey Creek basin, the river rose above flood state on the morning of May 28th. There were two crests associated with the heavy rain. The first coming on the morning of the 28th at 12.57 feet, and the second higher crest on May 30th at 16.58 feet. The second crest resulted in significant flooding of row crops in the flood plain.

342 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, East Richardson County 7 ESE Rulo 28 1036CST 31 2359CST 0 0 0.00K 0.00K Flood

The Missouri River at Rulo went above flood stage late in the morning of May 28th, crested around 23.5 feet late in the evening of the 30th and eventually fell below flood stage early in the morning of June 2nd. Although the river mostly flooded agricultural lowlands, several cabins and possibly a business in the area either experienced minor flooding or were threatened by the flooding. Several episodes of heavy-rain producing thunderstorms caused flooding along the Missouri River in southeast Nebraska, as well as the the Big Blue River, Turkey Creek, and the Big Nemaha River.

Nemaha County 3 NW Nemaha 28 1535CST 0 0 0.00K 0.00K Hail (1.75)

Hail did not completely cover the ground. The area also received one inch of rain.

Nemaha County 3 SW Brownville 28 1545CST 0 0 0.00K 0.00K Hail (1.50)

Nemaha County 1 W Brownville 28 1600CST 0 0 Hail (2.75)

Golfball to baseball size hail fell. Jefferson County 4 E Thompson 28 1835CST 0 0 0.00K 0.00K Hail (0.75)

Hail lasted for 20 minutes. Jefferson County 2 E Plymouth 28 1854CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Jefferson County 1 W Plymouth 28 1902CST 0 0 0.00K 0.00K Hail (1.00)

Saline County De Witt 28 1912CST 0 0 0.00K 0.00K Hail (0.88)

Lancaster County 2 NNE Hollam 28 1943CST 0 0 0.00K 0.00K Hail (1.00)

Scattered severe thunderstorms developed during the afternoon of the 28th along a stationary front extending across southeastern Nebraska and into southwest Iowa where strong instability had developed.

Jefferson County 1 W Plymouth 29 0721CST 0 0 0.00K 0.00K Hail (1.75)

A cluster of thunderstorms developed over south central Nebraska and spread east into an area of strong instability and weak inhibition over southeast Nebraska. As a low level jet increased, so did the areal coverage of thunderstorms. This cluster of storms produced a brief tornado spin-up, large hail, strong winds and heavy rain. Some flash flooding was also reported.

Nemaha County 8 SE Nemaha 29 1456CST 31 2359CST 0 0 0.00K 0.00K Flood

In response to repeated days of heavy rainfall from thunderstorms across eastern Nebraska and western Iowa, the Missouri River went into flood. The Missouri River at Brownville crested on May 31st at a stage of 35.79 feet. This led to widespread lowland flooding of agricultural land. This flooding persisted into early June.

Several episodes of heavy-rain producing thunderstorms caused flooding along the Missouri River in southeast Nebraska, as well as the the Big Blue River, Turkey Creek, and the Big Nemaha River.

343 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, East Butler County 3 N Rising City 29 1635CST 0 0 0.00K 0.00K Hail (0.88)

Butler County 2 SW Surprise 29 1650CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)

Center pivot was flipped over and a grain bin was damaged. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Butler County 3 NE Rising City 29 1700CST 1705CST 0.64 25 0 0 0.00K 0.00K Tornado (EF0)

This was a quick spin up tornado amongst a cluster of thunderstorms. No damage was reported with this brief tornado.

Saunders County 1 ESE Wahoo 29 1745CST 0 0 0.00K Thunderstorm Wind (61EG)

Roof damaged on a trailer house along county road K near the cemetery.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Knox County 5 WSW Verdel 29 1755CST 0 0 0.00K 0.00K Hail (1.00)

Wind gusts up to 60 mph were also reported. Knox County 5 WSW Verdel 29 1755CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts estimated up to 60 mph were accompanied by quarter-size hail.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Dodge County 1 SE Fremont 29 1806CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Lancaster County 2 ENE Raymond 29 1821CST 1851CST 0 0 0.00K 0.00K Flash Flood

Water briefly flooded the road near 12th and Raymond Road. Madison County Norfolk 29 1821CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated to have reached 60 mph in the Norfolk area.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Lancaster County 2 WSW Arrow Arpt 29 1830CST 1900CST 0 0 0.00K 0.00K Flash Flood

Flash flooding briefly covered sidewalks over parts of north Lincoln.

Saunders County 1 NE Ceresco 29 1900CST 2000CST 0 0 0.00K 0.00K Flash Flood

Heavy rain flooded the city park along Highway 77. A cluster of thunderstorms developed over south central Nebraska and spread east into an area of strong instability and weak inhibition over southeast Nebraska. As a low level jet increased, so did the areal coverage of thunderstorms. This cluster of storms produced a brief tornado spin-up, large hail, strong winds and heavy rain. Some flash flooding was also reported.

344 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, East Saline County 6 NNW Crete 29 2038CST 30 2000CST 0 0 0.00K 0.00K Flood

Heavy rainfall of 3 to 6 inches within the Big Blue River basin over several days pushed the river into flood. The Big Blue River crested on the morning of the 30th with a river stage of 22.68 feet at the city of Crete. This created significant lowland flooding along the river and led to the closure of several rural roads.

Richardson County 1 N Preston 30 0348CST 31 1820CST 0 0 0.00K 0.00K Flood

Persistent heavy rainfall across southeast Nebraska lead to a saturated ground and flooding along the Big Nemaha River near Falls City, NE. Lowland flooding was reported along the river from near Falls City to near Rulo. The river crested at 29.10 feet on the morning of the 30th of May, just over 4 feet above flood stage.

Otoe County 8 N Nebraska City Arpt 30 0745CST 31 0906CST 0 0 0.00K 0.00K Flood

Due to repeated heavy thunderstorm rains across eastern Nebraska and western Iowa the Missouri River went into flood. Only minor flooding was observed in Otoe County with the river cresting twice at Nebraska City, first on the morning of the 30th at 18 feet, and then fell briefly below flood stage cresting again on the 31st at 18.62 ft. This created areas of lowlands flooding along the river. Several episodes of heavy-rain producing thunderstorms caused flooding along the Missouri River in southeast Nebraska, as well as the the Big Blue River, Turkey Creek, and the Big Nemaha River.

Lancaster County 1 NW Denton 30 1720CST 0 0 0.00K 0.00K Hail (1.00)

Lancaster County 2 WSW Lincoln 30 1738CST 1 E West Lincoln 1743CST 0 0 0.00K 0.00K Hail (1.50)

Hail up to 1.5 inches in diameter fell across parts of Lincoln from the first supercell thunderstorm that tracked across the city this evening. Among areas that received the large hail from this first storm included the North Bottoms neighborhood near 9th and Charleston, near Coddington and South Streets and at least one location in southwest Lincoln.

Saunders County 1 N Mead 30 1751CST 0 0 0.00K 0.00K Hail (1.00)

Cass County 1 SW Greenwood 30 1810CST 0 0 0.00K 0.00K Hail (1.00)

Lancaster County 1 S Lakeview 30 1825CST 2 WNW Arrow Arpt 1850CST 0 0 Hail (1.75)

Hail up to golf ball-size fell across parts of the Lincoln area from the second supercell thunderstorm that tracked over the city this evening. Many of the larger hail reports from this storm came from the western and northern sections, including the Highlands area, 141st and Davey, 27th and I-80, 14th and I-80, 56th and Highway 2 and Coddington and West A Streets.

Douglas County 1 NE Waterloo 30 1827CST 0 0 0.00K 0.00K Hail (0.88)

Lancaster County Firth 30 1827CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Shingle and tree damage was reported associated with the wind gust near Firth.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

345 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, East Gage County 1 SW Adams 30 1830CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

The estimated gust tore shingles off homes in the city of Adams.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Lancaster County 1 N Waverly 30 1848CST 1850CST 0 0 0.00K 0.00K Hail (1.50)

Hail up to 1.5 inches in diameter fell a few miles north of Waverly.

Cass County 3 NNW Manley 30 1855CST 2 S Louisville 1857CST 0 0 0.00K 0.00K Hail (2.00)

Cass County 1 SE Plattsmouth 30 1906CST 1907CST 0 0 0.00K 0.00K Hail (0.88)

Cass County 2 S Cedar Creek 30 1910CST 0 0 0.00K 0.00K Hail (1.00)

Sarpy County 3 WSW Chalco 30 1925CST 0 0 0.00K 0.00K Hail (0.75)

Most of the hail was pea size, but a few stones near dime size also fell.

Cass County 1 NNE Plattsmouth 30 1935CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

This estimated wind gust was reported at the Plattsmouth Country Club.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Washington County 1 S Ft Calhoun 30 1951CST 0 0 0.00K 0.00K Hail (1.00)

This was the the final severe weather event in a series of occurrences that were associated with a seasonably deep upper level low pressure over the northern Plains. Instability increased during the afternoon along and ahead of a stationary front across eastern Nebraska from low pressure over the Dakotas. Isolated to scattered thunderstorms developed in the late afternoon and tracked across eastern Nebraska and into western Iowa during the evening hours. Although isolated reports of damaging winds were reported, most of the events were large hail, some of which was significant.

Gage County 7 SW Clatonia 30 2330CST 3 NW Hoag 31 2359CST 0 0 0.00K 0.00K Flood

Repeated heavy rainfall over the Big Blue River basin lead to the river going into flood across parts of Gage County. This was most prevalent from Beatrice and to the north. The river crested at Beatrice on the morning of June 1st at 17.98 feet. This created lowland flooding, but few impacts to the city of Beatrice.

Several episodes of heavy-rain producing thunderstorms caused flooding along the Missouri River in southeast Nebraska, as well as the the Big Blue River, Turkey Creek, and the Big Nemaha River.

346 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, Extreme Northeast NEZ013-014 Dakota - Dixon 01 0000CST 0 0 0.00K 0.00K Drought 16 Long term dry soil conditions and low flows on the Missouri River contributed to lingering drought at the start of May. The severe to extreme drought steadily abated as precipitation increased during the first part of the month, with the sensitivity of the area to potential dry summer periods decreasing.

Dixon County Wakefield 16 1450CST 0 0 0.00K 0.00K Hail (0.75)

Dixon County Wakefield 16 1450CST 0 0 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds blew down several 6 to 8 inch diameter branches.

A thunderstorm produced winds which caused tree damage, and also produced three quarter inch diameter hail, at Wakefield in extreme northeast Nebraska on the afternoon of May 16th. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

Dixon County 1 E Dixon 30 1928CST 0 0 0.00K 0.00K Hail (0.88)

A thunderstorm produced nickel size hail at Dixon on the evening of May 30th.

NEBRASKA, Extreme Southwest

NEZ079>081 Dundy - Hitchcock - Red Willow 01 0000MST 31 2359MST 0 0 0.00K 0.00K Drought

Drought conditions across the area continued from April with little change. Dundy, Hitchcock and Red Willow Counties remained in D3 (Extreme) to D4 (Exceptional) Drought. May precipitation at cooperative observer sites ranged from 55 to 120 percent of normal. Dundy County 1 E Benkelman Jones Arpt 18 1559MST 0 0 0.00K 0.00K Hail (0.75)

Dundy County 1 E Benkelman Jones Arpt 18 1601MST 0 0 0.00K 0.00K Hail (0.88)

A large weather system moved out into the High Plains from the Rockies during the day. Strong atmospheric instability and wind shear resulted in several clusters of strong to severe storms during the afternoon and evening. Penny to nickel size hail was reported in Benkelman during the late afternoon hours.

Dundy County 2 W Parks 24 1655MST 0 0 0.00K 0.00K Hail (1.75)

Dundy County 3 WSW Parks 24 1705MST 0 0 0.00K 0.00K Hail (1.75)

Red Willow County Mc Cook 24 2308CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

A couple supercells moved northward across far Southwest Nebraska during the late afternoon and evening producing large hail and severe wind gusts. Hail up to 1.75 in diameter was reported near Parks. During the late evening a wind gust of 58 MPH was measured at the McCook airport from one of the storms. Note: The measured wind gust of 50 knots is equivalent to 58 mph. Dundy County 3 E Max 25 1728MST 0 0 0.00K 0.00K Hail (1.00)

Report relayed via spotter network. A severe thunderstorm moved northeast into Southwest Nebraska during the evening. The largest hail reported was 1 near Max.

347 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, Extreme Southwest Dundy County Benkelman 29 1210MST 0 0 0.00K 0.00K Hail (0.75)

Dundy County 2 E Benkelman 29 1219MST 0 0 0.00K 0.00K Hail (0.88)

Dundy County 3 N Max 29 1241MST 0 0 0.00K 0.00K Hail (0.88)

Also received 0.37 of rainfall. Dundy County 15 N Parks 29 1300MST 0 0 0.00K 0.00K Hail (1.50)

Dundy County 16 NNE Parks 29 1300MST 0 0 0.00K 0.00K Hail (1.75)

Dundy County 15 NW Max 29 1300MST 0 0 0.00K 0.00K Hail (1.50)

Hail ranged from dime to ping-pong in size, also received 0.85 of rainfall.

Hitchcock County Palisade 29 1331CST 0 0 0.00K 0.00K Hail (1.00)

Estimated time of report from radar. Hitchcock County Trenton 29 1419CST 0 0 0.00K 0.00K Hail (0.75)

Hitchcock County Culbertson 29 1453CST 1505CST 0 0 0.00K 0.00K Hail (1.00)

Red Willow County 2 WNW Perry 29 1532CST 0 0 0.00K 0.00K Hail (1.00)

Hail was reported on the Hitchcock/Red Willow county line along Highway 34.

Red Willow County 2 WNW Perry 29 1540CST 0 0 0.00K 0.00K Hail (1.00)

Red Willow County 1 N Mc Cook 29 1555CST 0 0 0.00K 0.00K Hail (1.00)

Hitchcock County 2 SW Culbertson Hock Arpt 29 1615CST 3 N Culbertson 2015CST 0 0 0.00K 0.00K Flash Flood

A number of thunderstorms moved over the area during the afternoon. The excessive rainfall in a short period of time caused four to six inches of water to run over the county roads.

Dundy County 4 N Benkelman Jones Arpt 29 1620MST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Spotter estimated wind gusts of 60-70 MPH. Severe thunderstorms moved/developed over far Southwest Nebraska during the afternoon. Large hail up to 1.5 inches in diameter, wind gusts around 65 MPH, and flash flooding were reported from the storms. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

348 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, South Central NEZ039>041-046> Adams - Buffalo - Clay - Dawson - Fillmore - Franklin - Furnas - Gosper - Greeley - Hall - Hamilton - 049-060>064-072> Harlan - Howard - Kearney - Merrick - Nance - Nuckolls - Phelps - Polk - Sherman - Thayer - Valley - 077-082>087 Webster - York 01 0000CST 31 2359CST 0 0 0.00K 0.00K Drought

According to the U.S. Drought Monitor, May marked the eleventh consecutive month of moderate (or worse) drought across South Central Nebraska, continuing one of the most notable droughts since the 1950s. However, thanks to above normal rainfall across roughly the northeast two-thirds of the 24-county area, many places saw improving conditions for the second consecutive month. More specifically, most locations northeast of a line from Grand Island-Hebron improved to D1 Moderate Drought over the course of the month, marking the first time since July 2012 that any portion of the area featured a classification better than D2 Severe Drought. In the drier southwestern areas primarily consisting of Gosper, Phelps, Kearney, Furnas, Harlan and Franklin counties, D3 Extreme Drought continued to prevail, with southwestern Furnas County holding onto D4 Exceptional Drought (the worst-possible category). In between these aforementioned extremes, several counties such as Valley, Greeley, Sherman, Adams, Webster and Nuckolls improved to (or remained in) D2 Severe Drought during the month. Based on reports from around 50 NWS cooperative observers, and also incorporating radar-derived estimation, the northeast-southwest split between predominantly-above normal and predominantly-below normal rainfall aligned along an axis from Gothenburg-Minden-Hebron (based on normals generally between 3.75-4.75 inches). Areas northeast of this line (including the Tri-Cities) ending up considerably wetter, and in fact roughly one-fourth of South Central Nebraska measured at least 150 percent of normal May rainfall. Fortunately, even in the drier southwestern counties, nearly all places managed to see at least 1.50 for the month. Per a combination of NWS cooperative observers and NeRAIN observers, several of the highest- known May precipitation totals included 9.83 seven miles southeast of Stromsburg, 9.20 three miles northeast of Shelby, 8.73 six miles southwest of Columbus, 8.49 four miles west-northwest of Alexandria and 8.33 at Hampton. At Grand Island, 6.77 was the 15th-wettest May on record dating to 1896. More remarkably, the 24-hour total of 3.09 that fell from the 24th-25th was more than all cumulative rain that fell during the four-month period between June-September 2012 (2.84)! In the drier side of the area, some of the lowest reported totals included 1.57 at Cambridge, 1.77 at Edison and 1.91 eight miles south of Elwood. In between these wettest and driest extremes, the majority of South Central Nebraska reported May totals somewhere between 2.50 and 6.50. Remarkably, for some areas a small fraction of May precipitation consisted of snow, as an unusually cold start to the month brought light accumulations up to around 1 primarily on the 1st, with isolated pockets up to 2 at northern sites such as Genoa and Greeley. Focusing on the longer-range picture of year-to-date precipitation amounts (January-May), most of the 24-county area received between 75 and 115 percent of normal. Although this near normal to slightly above normal trend certainly was not enough to end drought issues, it at least eased the drought severity since fall 2012 in many places. According to the USDA Nebraska Crop Progress and Condition Report for the week ending June 9th, state-averaged topsoil moisture continued to improve, rating 27% short to very short and 69% adequate, a marked improvement from an 80% short to very short rating as recently as late-March. Although subsoil moisture supplies lagged behind, they also exhibited considerable improvement since early-May, decreasing from 84% short to very short to only 58% short to very short. Crop-wise, the state-averaged young corn and soybean stands both rated 75% good to excellent, while wheat was not as favorable at 50% poor to very poor. Hay and forage supplies rated 73% short to very short. Stock water supplies were only 14 percent short to very short, a 7% improvement since early-May. Over the same time span, poor to very poor pasture and range ratings improved from 70% to only 46%.

Dawson County Lexington 18 1835CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Kearney County 2 NE Norman 18 1842CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

At mid-afternoon on this Saturday, discrete storms initiated over western Kansas near a surface low and dryline and north of a developing warm front. Several of the storms organized along a common cold pool and moved northeast into south-central Nebraska as an arc-shaped squall line. These storms produced multiple wind gusts of 50 to 55 mph and even two severe wind gusts near Lexington and just east of Minden. An upper-level trough was digging through the desert southwest and lee-side cyclogenesis was underway. Temperatures in the low-mid 80s and rich dewpoints in the mid-upper 60s resulted in MLCAPE of 2500-5000 J/kg. While deep layer shear was strong enough to support supercell storm structures, the number of cells resulted in merging of individual cold pools and ultimately a multicell storm mode. Note: The measured wind gust of 53 knots is equivalent to 61 mph.

Buffalo County 6 ENE Kearney 19 1420CST 0 0 0.00K 0.00K Hail (1.00)

349 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, South Central Buffalo County 4 WSW Gibbon 19 1430CST 1450CST 0 0 75.00K 0.00K Hail (2.00)

Hail ranging in size from half dollars to hen eggs was reported.

Dawson County 3 S Cozad 19 1436CST 1442CST 0 0 25.00K 0.00K Hail (1.50)

Buffalo County 1 N Gibbon 19 1446CST 0 0 250.00K 0.00K Hail (2.75)

Dawson County 10 NW Lexington 19 1459CST 1513CST 0 0 25.00K 0.00K Hail (1.75)

Buffalo County 2 E Gibbon 19 1500CST 0 0 0.00K 0.00K Hail (1.00)

Buffalo County 3 WNW Shelton 19 1500CST 0 0 25.00K 0.00K Hail (1.25)

Hall County 5 NW Wood River 19 1525CST 0 0 0.00K 0.00K Hail (1.00)

Hall County 1 N Wood River 19 1535CST 0 0 0.00K 0.00K Hail (0.88)

Howard County 4 N St Libory 19 1544CST 0 0 25.00K 0.00K Hail (1.75)

Hall County Wood River 19 1546CST 0 0 0.00K 0.00K Hail (1.00)

Greeley County 3 NE Wolbach 19 1551CST 1553CST 0.23 25 0 0 40.00K 0.00K Tornado (EF1)

This tornado touched down a few miles northeast of Wolbach and was on the ground for approximately 2 minutes. With an estimated top wind speed of 90 mph, damage from this tornado included a destroyed mobile home and outbuilding and broken tree limbs of 5 to 8 inches in diameter.

Hall County Alda 19 1558CST 1611CST 0 0 0.00K 0.00K Hail (1.00)

Adams County Hastings 19 1627CST 1636CST 0 0 25.00K 0.00K Hail (1.25)

Hall County Grand Is 19 1627CST 0 0 0.00K 0.00K Hail (0.88)

Adams County 1 NW Hastings 19 1628CST 0 0 0.00K 0.00K Hail (1.00)

350 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, South Central Adams County 1 NW Hastings 19 1636CST 0 0 25.00K 0.00K Hail (1.25)

Nance County 2 W Fullerton 19 1646CST 0 0 0.00K 0.00K Hail (1.00)

Thayer County Hebron 19 1902CST 0 0 0.00K 0.00K Hail (0.88)

This Sunday afternoon and evening was one of the more prolific severe weather events in the spring of 2013, in terms of the number of reports. This event was part of the same large-scale system that produced a few severe thunderstorms the previous day. A digging upper-level trough was over the western United States, while low pressure continued to organize over South Dakota, becoming vertically-stacked by evening. The associated cold front progressed through South Central Nebraska, helping to initiate the thunderstorms. Prior to thunderstorm development, a subtle short-wave trough moved through, introducing cooler and drier air aloft and increasing potential instability. The exit region of an 85 knot upper-level jet streak nosed into Oklahoma, coupling with the cold front to create deep, large-scale lift. Surface temperatures peaked in the low to mid 70s, while dewpoints were in the 60s ahead of the front and in the 50s behind. MLCAPE was not overly impressive, with 1000-1500 J/kg ahead of the front and 500-1000 J/kg post-frontal. Deep layer shear was sufficient for supercells. With no cap in place, scattered thunderstorms began forming between 2 and 3 pm CDT, from Grand Island north and west. The storms increased in coverage as the afternoon progressed. While some remained discrete, the shear number of storms gradually led to several short multicell line segments. By 4 pm CDT, additional storms formed further south along the Highway 281 corridor. Before the storms exited into southeastern Nebraska, one large, solid squall line had formed, but numerous embedded, discrete cells were still discernible. With upper-level low pressure just north of the area and the associated cold temperatures aloft, the storms were largely hail producers. Quarter to golf ball size hail reports were numerous. The most severe storm of the event tracked east-northeast across Buffalo County and into Hall County. However, it dropped the largest hail and was the most intense over Buffalo County. Near Gibbon, baseball size hail occurred. This storm probably produced similar size hail along the more rural portions of its track, between Kearney and Gibbon, but the lack of population resulted in no other similar reports. The assistant fire chief in Gibbon reported that a law enforcement officer was dispatched to mile marker 279 on Interstate 80, or about 7 miles east of Kearney, where vehicles had broken windshields. Another storm produced a short-track, weak EF1 tornado near Wolbach in southern Greeley County. Most of the severe weather occurred within and around the Tri-Cities of Kearney, Grand Island and Hastings.

Hall County 2 SE Grand Is 24 1800CST 25 0600CST 0 0 0.00K 0.00K Heavy Rain

A storm total rainfall of 3.00 inches was reported. Hall County 1 NNE Grand Is 24 1800CST 25 0600CST 0 0 0.00K 0.00K Heavy Rain

A storm total rainfall of 3.10 inches was reported by a Nebraska Rainfall Assessment and Information Network Observer.

Hall County Wood River 24 1800CST 25 0600CST 0 0 0.00K 0.00K Heavy Rain

A storm total rainfall of 3.63 inches was reported by a Nebraska Rainfall Assessment and Information Network Observer.

Hall County 7 NNE Grand Is 24 1800CST 25 0600CST 0 0 0.00K 0.00K Heavy Rain

A storm total rainfall of 3.22 inches was reported by a Nebraska Rainfall Assessment and Information Network Observer.

351 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, South Central Howard County 3 ESE St Paul 24 1800CST 25 0600CST 0 0 0.00K 0.00K Heavy Rain

A storm total rainfall of 3.11 inches was reported by a Nebraska Rainfall Assessment and Information Network Observer.

Howard County St Paul 24 1800CST 25 0600CST 0 0 0.00K 0.00K Heavy Rain

A storm total rainfall of 3.03 inches was reported. Merrick County 1 NNE Central City 24 1800CST 25 0600CST 0 0 0.00K 0.00K Heavy Rain

A storm total rainfall of 3.03 inches was reported by a Nebraska Rainfall Assessment and Information Network Observer.

Sherman County Loup City 24 1800CST 25 0600CST 0 0 0.00K 0.00K Heavy Rain

A storm total rainfall of 4.01 inches was reported by a Nebraska Rainfall Assessment and Information Network Observer.

Sherman County 2 W Loup City 24 1800CST 25 0600CST 0 0 0.00K 0.00K Heavy Rain

A storm total rainfall of 4.28 inches was reported by a Nebraska Rainfall Assessment and Information Network Observer.

Sherman County Loup City 24 2230CST 0 0 25.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated near 60 mph resulted in tree damage and power outages in Loup City.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Dawson County Gothenburg 24 2231CST 0 0 0.00K 0.00K Hail (1.00)

Sherman County 1 NW Rockville 24 2300CST 0 0 0.00K 0.00K Hail (1.00)

On this Friday, scattered thunderstorms formed over southwestern Nebraska during peak heating, from Ogallala down to Imperial. Some of these storms moved northeast, and as they did so, new thunderstorms initiated ahead of them over South Central Nebraska between 10 and 10:30 pm CDT. The two strongest storms were short line segments of multicells. The first developed and affected Sherman and Howard counties. The second was associated with the storms moving in from the west, and affected Dawson county. Severe weather was not widespread. A single report of one inch hail was received in Gothenburg. Elsewhere, trees and power lines were knocked down in Loup City in Sherman county. One inch hail was also reported in the nearby town of Ashton. The rainfall amounts were far more impressive than the severe weather. After 11:30 pm CDT, additional thunderstorms formed, connecting the two individual storm clusters. This created a continuous line of storms oriented from west-to-east which slowly sank southeastward. Cell training occurred and resulted in widespread rainfall amounts of 2 to 3 inches from Sherman, Howard and Merrick counties across York, Adams, Clay and Thayer counties. The highest totals exceeded 4 inches, in and near Loup City in Sherman county. The synoptic and mesoscale setups were ideal for heavy, excessive rainfall. Surface high pressure was departing the region, with a stationary front extending from the Nebraska Panhandle southeast to Louisiana. An upper-level ridge was over the Plains, just east of South Central Nebraska. A 35 knot low-level jet provided a favorable environment for thunderstorms to develop, transporting increasingly warm, moist air over the front and into South Central Nebraska. Mean layer CAPE averaged around 2,000 J/kg. Precipitable water was around 1.2 inches, which was almost 2 standard deviations above normal for late May.

352 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, South Central Dawson County Gothenburg 25 1846CST 1848CST 0 0 400.00K 0.00K Hail (1.75)

Hail ranging in size from quarters to golf balls was reported in Gothenburg.

Dawson County 2 E Gothenburg 25 1855CST 0 0 200.00K 0.00K Hail (2.00)

Dawson County 7 NE Gothenburg 25 1906CST 0 0 200.00K 0.00K Hail (2.75)

Between 730-815 pm CDT on this Saturday evening, a severe multicell storm tracked northeast through western portions of Dawson County, pelting areas in and near Gothenburg with large hail ranging from quarter to baseball size. In Gothenburg itself, hail up to golf ball size was reported, with the baseball size report originating seven miles northeast of town before the storm slipped out of the local area into Custer County. This hail storm was by far the most notable of a handful of multicell storms that affected western portions of South Central Nebraska mainly between 730-1030 pm CDT. Prior to entering the local area, the initial development of strong to severe convection took place during the mid-late afternoon hours near the Nebraska- Kansas-Colorado border before tracking east-northeast. After darkness fell, the South Central Nebraska storms steadily faded away, as most activity ended up confined to Dawson, Gosper, Furnas, Harlan and Sherman counties. On the large scale aloft, this event occurred under fairly modest quasi-zonal flow, as South Central Nebraska remained well- removed from stronger flow associated with broad longwave troughs centered near both the northwest and northeast corners of the United States. However, the presence of subtle, low-amplitude shortwave troughs passing through the flow helped ignite strong to severe convection in an environment featuring steep low to mid level lapse rates, around 2500 J/kg mixed-layer CAPE, and around 35 knots of 0-6 kilometer deep layer wind shear. At the surface, late afternoon and evening dewpoints in the Dawson County area averaged in the low-mid 60s, as steady south-southeast breezes prevailed to the east of a High Plains lee trough and south of a synoptic warm front aligned from western South Dakota into far eastern Nebraska.

Valley County 5 NW Arcadia 26 1932CST 0 0 0.00K 0.00K Hail (1.00)

Valley County 8 N Arcadia 26 2020CST 0 0 50.00K 0.00K Hail (1.75)

Valley County 14 N Arcadia 26 2035CST 0 0 50.00K 0.00K Hail (1.75)

Valley County 7 SW Elyria 26 2038CST 0 0 50.00K 0.00K Hail (2.00)

Merrick County Central City 27 0510CST 0 0 0.00K 0.00K Hail (0.75)

A lone, compact-but-intense supercell drifted slowly northeast across western portions of Valley County mainly between 8-10 pm CDT on this Sunday evening, dumping large hail up to two inches in diameter. This storm initially flared up just west of the local area in east-central Custer County around 730 pm CDT, and eventually exited Valley County into Garfield County in a weakening phase. Later in the night, primarily between 1130 pm-330 am CDT, the southern fringes of a linear mesoscale convective system (MCS) focused across north central and eastern Nebraska brushed through areas northeast of a line from Ord -York, but these storms remained sub-severe within the local area. Finally, even later into the night and early morning hours primarily between 430-700 am CDT, a southwest-northeast cluster of strong storms tracked through counties mainly along and north of Interstate 80, with penny size hail reported in Central City around sunrise. The cumulative result of all evening and overnight convection was a swath of 1-2+ inches of rain for many areas northeast of an Ord-York line, including 2.90 inches two miles west of Genoa. Leading into the initial evening supercell development, the mid and upper level pattern featured moderate quasi-zonal flow, with South Central Nebraska positioned downstream of a potent trough tracking through the Pacific Northwest and Northern Rockies. At the surface, the early evening map highlighted a well-defined quasi-stationary front aligned east-west through the heart of central and eastern Nebraska, providing a focus for low level convergence and storm development. Mesoscale parameters around the time of the Valley County supercell featured a favorable severe weather environment, with mixed-layer CAPE around 3000 J/kg and 0-6 kilometer deep layer wind shear around 35 knots. Low level shear near the surface front was also favorable for tornadic development, but only wall clouds and brief funnel clouds were reported in or near Valley County.

353 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, South Central Harlan County 4 NE Huntley 27 1555CST 0 0 0.00K 0.00K Hail (1.00)

Phelps County 6 NW Funk 27 1626CST 0 0 25.00K 0.00K Hail (1.50)

Phelps County 11 N Funk 27 1637CST 0 0 50.00K 0.00K Hail (1.75)

Buffalo County 2 W Odessa 27 1647CST 0 0 0.00K 0.00K Hail (1.00)

Buffalo County Kearney 27 1648CST 0 0 0.00K 0.00K Hail (0.88)

Buffalo County 5 WNW Kearney 27 1655CST 0 0 0.00K 0.00K Hail (1.00)

Adams County Juniata 27 1710CST 0 0 0.00K 0.00K Hail (0.88)

Adams County 5 W Hastings 27 1720CST 0 0 0.00K 0.00K Hail (1.00)

Harlan County 2 N Republican City 27 1730CST 0 0 75.00K 0.00K Hail (1.75)

Adams County 8 ESE Ayr 27 1816CST 0 0 0.00K 0.00K Thunderstorm Wind (64MG) Note: The measured wind gust of 64 knots is equivalent to 74 mph.

Clay County 2 W Edgar 27 1832CST 1840CST 4.47 250 0 0 4.00M 0.00K Tornado (EF2)

This EF2 tornado touched down during the early evening hours just west of Edgar and was on the ground between 5 and 10 minutes before lifting just southeast of Edgar. The maximum speed was estimated at 115 MPH with a maximum width of 250 yards. Damage along the path included snapped power poles, overturned irrigation pivots, grain bin and outbuilding damage. In Edgar itself, a large metal building was destroyed, other buildings suffered minor damage and the grain elevator was damaged.

Clay County 3 SW Ong 27 1850CST 1855CST 0 0 6.00M 0.00K Thunderstorm Wind (78EG)

Wind gusts were estimated to be near 90 MPH, resulting in tree damage, overturned pivots and snapped power poles.

Note: The estimated wind gust of 78 knots is equivalent to 90 mph. Thayer County 1 E Davenport 27 1859CST 6 N Belvidere 1920CST 0 0 4.00K 0.00K Thunderstorm Wind (78EG)

Wind gusts were estimated to be near 90 MPH, with mesonet sites in the Davenport area also measuring gusts of 73 and 78 MPH. Damage was confined to far northern portions of Thayer County, with Bruning suffering tree and grain elevator damage and a gas station sign was blown down. Tree damage was also reported in Carleton.

Note: The estimated wind gust of 78 knots is equivalent to 90 mph.

354 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, South Central Fillmore County 5 SSW Shickley 27 1900CST Ohiowa 1925CST 0 0 6.00M 0.00K Thunderstorm Wind (78EG)

Wind gusts were estimated to be near 90 MPH, with damage generally confined to southern portions of Fillmore County. Along this path, multiple irrigation pivots were overturned, power poles were broken and trees were damaged. A number of grain bins were damaged or destroyed, outbuildings were damaged and one home suffered damage, mainly broken glass.

This Monday, also Memorial Day, was one of the more widespread severe weather events of spring 2013 over South Central Nebraska. The first storms developed over Phelps and Harlan counties around 4:30 pm CDT, and they formed as a short line segment of supercells that exhibited multicell characteristics. Several cell splits occurred during the following two hours, each of which headed north of Interstate 80 and then weakened. The storms that comprised the original line segment continued to advance eastward, remaining south of Interstate 80. After about 7 pm CDT, they transitioned to a dominant multicell mode in the form of a large cluster. The initial storms produced the most hail, including the strongest of the left split supercells of this event, which produced hail as far north as Buffalo county. The largest hail reported was the size of golf balls. As the thunderstorm mode transitioned to multicellular, damaging winds became the primary severe weather threat. Several locations, from Kearney county east to Fillmore county, measured winds in excess of 70 mph. The highest wind measured was 78 mph near Davenport. However, damage surveys suggested winds were as high as 90 mph. Trees and power lines were knocked down, several grain bins were damaged or destroyed and irrigation pivots were overturned. An EF-2 tornado was confirmed in southern Clay County, affecting the town of Edgar. This non-supercellular tornado formed at the leading edge of the line, just after a strong surge of downdraft winds within the line. With the 8 am CDT Severe Weather Outlook, the Storm Prediction Center upgraded South Central Nebraska, south of Highway 6, to a moderate risk for severe thunderstorms. A weak short-wave trough was approaching the region, embedded within a broad upper-level trough, over the western United States. A quasi-stationary front, oriented in an east-west fashion, extended across Nebraska. During the early morning hours, a mesoscale convective system tracked through eastern Nebraska southeastward into Missouri. This MCS laid down an outflow boundary that extended across northern Kansas, to a lee-side low. It was to the north of this outflow boundary that storms initiated. At the time of initial thunderstorm development, temperatures were in the lower to middle 80s south of the front, with dewpoints in the middle 60s. This resulted in a moderately unstable atmosphere, with MLCAPE between 2000 and 3000 J/kg. Deep layer shear was 40 to 50 knots, which was more that strong enough for supercell storm structures. Note: The estimated wind gust of 78 knots is equivalent to 90 mph.

Adams County 3 NE Ayr 29 0600CST 0 0 0.00K 0.00K Heavy Rain 30 A storm total rainfall amount of 3.34 inches was reported by a Nebraska Rainfall Assessment and Information Network Observer. Clay County Harvard 29 0600CST 0 0 0.00K 0.00K Heavy Rain 30 A storm total rainfall amount of 3.76 inches was reported by a Nebraska Rainfall Assessment and Information Network Observer. Hamilton County 3 ESE Hampton 29 0600CST 0 0 0.00K 0.00K Heavy Rain 30 A storm total rainfall amount of 3.04 inches was reported by a Nebraska Rainfall Assessment and Information Network Observer. York County 5 NNW Thayer 29 0600CST 0 0 0.00K 0.00K Heavy Rain 30 A storm total rainfall amount of 3.76 inches was reported by a Nebraska Rainfall Assessment and Information Network Observer. York County 6 N Bradshaw 29 0600CST 0 0 0.00K 0.00K Heavy Rain 30 A storm total rainfall amount of 3.04 inches was reported by a Nebraska Rainfall Assessment and Information Network Observer. Franklin County 3 SW Franklin 29 0751CST 0 0 0.00K 0.00K Hail (1.00)

355 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, South Central Franklin County 5 SW Hildreth 29 0757CST 0 0 0.00K 0.00K Hail (1.00)

Franklin County Hildreth 29 0800CST 0 0 0.00K 0.00K Hail (0.75)

Buffalo County 7 S Ravenna 29 1000CST 0 0 0.00K 0.00K Hail (1.00)

Hall County 5 S Cairo 29 1052CST 0 0 0.00K 0.00K Hail (0.75)

Greeley County Greeley 29 1220CST 0 0 0.00K 0.00K Hail (0.88)

Adams County Hastings 29 1259CST 0 0 125.00K 0.00K Hail (1.50)

Nickel to ping pong ball size hail was reported on the west side of Hastings.

Adams County 2 NE Juniata 29 1302CST 0 0 125.00K 0.00K Hail (1.75)

Adams County 4 N Hastings 29 1306CST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail and wind gusts of 47 MPH were recorded at the Hastings NWS Office.

Buffalo County Kearney 29 1335CST 0 0 0.00K 0.00K Hail (1.00)

Nickel to quarter size hail was reported. Buffalo County 7 N Riverdale 29 1355CST 0 0 75.00K 0.00K Hail (1.75)

Ping pong ball to golf ball size hail was reported. Buffalo County 7 N Riverdale 29 1355CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts were estimated to be near 60 MPH. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Clay County 1 N Clay Center 29 1356CST 1400CST 0.49 25 0 0 0.00K 0.00K Tornado (EF0)

This tornado touched down in open land for a few minutes approximately 2 miles north-northeast of Clay Center. The maximum wind speed was estimated to be 75 MPH, but no damage was reported.

Clay County 1 S Sutton 29 1410CST 1420CST 0 0 25.00K 0.00K Hail (1.25)

Quarter to half dollar size hail was reported. Buffalo County 4 NW Pleasanton 29 1415CST 0 0 75.00K 0.00K Hail (1.75)

356 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, South Central York County Henderson 29 1445CST 0 0 125.00K 0.00K Hail (1.75)

Half dollar to golf ball size hail was reported. Clay County 6 N Sutton 29 1445CST 0.01 15 0 0 0.00K 0.00K Tornado (EF0)

This tornado briefly touched down approximately 6 miles north of Sutton, with an maximum wind speed estimated to be 75 MPH. No damage was reported. York County 2 SSW Bradshaw 29 1520CST 0.01 15 0 0 0.00K 0.00K Tornado (EF0)

This tornado briefly touched down approximately 2 miles south of Bradshaw, with a maximum wind speed estimated to be 75 MPH. No damage was reported with this tornado. Clay County 2 NNE Clay Center 29 1521CST 4 WNW Saronville 1529CST 4.34 75 0 0 200.00K 0.00K Tornado (EF1)

This was the second tornado to touch down approximately 2 miles north-northeast of Clay Center this day, with this one traveling along a 4 mile path before lifting 6 miles north-northeast of Clay Center. This tornado had a maximum width of 75 yards and maximum wind speed estimated to be 100 MPH. One home suffered minor damage, as did an outbuilding, with metal panels being pulled from the roof and walls.

York County 4 NW York Arpt 29 1536CST 4 NW Benedict 1600CST 8.39 150 0 0 500.00K 0.00K Tornado (EF1)

This tornado touched down approximately 3 miles northwest of York, traveling along a 9 mile path before lifting approximately 12 miles northwest of York. This tornado had a maximum width of 150 yards and maximum wind speed estimated to be 100 MPH. Along this path, trees were damaged or uprooted, power poles were snapped and irrigation pivots overturned. There were a couple residences which suffered minor damage, but one garage was destroyed. Outbuildings and grain bins were also damaged or destroyed.

Dawson County Gothenburg 29 1540CST 0 0 0.00K 0.00K Hail (1.00)

York County 3 N Mc Cool Jct 29 1548CST 3 NNE Thayer 1620CST 15.93 400 0 0 1.50M 0.00K Tornado (EF1)

This tornado touched down approximately 5 miles south of York, traveling along a 16 mile path before lifting 12 miles northeast of York. It crossed over Interstate 80 approximately 1.3 miles east of the York interchange. This tornado had a maximum width of 400 yards and maximum wind speed estimated to be 110 MPH. Along this path, power poles and trees were snapped, large branches up to 12 to 18 inches in diameter were downed and irrigation pivots were overturned. Two outbuildings were damaged or destroyed.

Thayer County Hebron Arpt 29 1555CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG) Note: The measured wind gust of 53 knots is equivalent to 61 mph.

Thayer County 6 N Belvidere 29 1639CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Wind gusts were estimated to be near 65 MPH. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Howard County 7 WNW Elba 29 1705CST 0.01 15 0 0 0.00K 0.00K Tornado (EF0)

This tornado briefly touched down approximately 6 miles northeast of Ashton, with a maximum wind speed estimated to be 75 MPH. No damage was reported with this tornado.

357 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, South Central Howard County 4 NNW Elba 29 1723CST 0 0 0.00K 0.00K Hail (1.00)

There was a lot of active weather across South Central Nebraska on this Wednesday, occurring in multiple episodes throughout the entire day, culminating in seven tornadoes. Three of these tornadoes were classified as EF-1 with the other four producing EF-0 damage. Just after sunrise, scattered showers and thunderstorms developed. While most of these storms were sub-severe, the first severe reports of the day occurred over Franklin county. Just before 10 am CDT, one inch hail fell over parts of Franklin county. These thunderstorms departed into eastern Nebraska by 1 pm CDT. In the wake of the initial storms, several storms, some of which were supercells, formed over Webster and Franklin counties, and congealed into clusters and lifted northeast into Adams and Clay counties. Around 2 pm CDT, hail up to the size of golf balls was reported in and nearby Hastings. As these storm clusters moved north, new isolated supercells formed in surrounding areas, including in their wake. These newly-formed cells were the ones that produced several highly-visible tornadoes over York and Clay counties. Six tornadoes occurred in a two hour period, between 3 and 5 pm CDT, over these counties. Other storms lifted into Nuckolls and Thayer counties from northern Kansas. One of these storms produced 61 mph winds at the Hebron municipal airport just before 5 pm CDT. Just after this time, another isolated supercell formed over Hall county and moved north into Howard county. This storm produced a brief tornado near Ashton and one inch hail near Cotesfield. While this was the last of the severe weather, the thunderstorms were far from over. A squall line, which had been active over southwestern Nebraska, advanced eastward while continuing to weaken. The repeated thunderstorm development resulted in significant rainfall amounts. Measurements of 2 to 3 inches were widespread. The highest total was 3.76 inches, in the town of Harvard and 7 miles southeast of Stromsburg. These numerous thunderstorms, and the associated severe weather, were a result of lee cyclogenesis over Colorado. A negatively tilted upper-level trough extended from Colorado southeastward to Texas, with the leading edge of a 100 knot upper -level jet streak just to the west. The atmosphere was extremely unstable. Temperatures nearing 80 degrees, with dewpoints approaching 70 degrees, resulted in MLCAPE of 3000 to 3500 J/kg. Deep layer shear was around 40 knots. The supercells that became tornadic occurred in areas where surface winds were significantly veered from the southeast.

Phelps County 4 SE Bertrand 30 1424CST 0 0 0.00K 0.00K Hail (0.75)

Around 2:30 pm CDT on this Thursday afternoon, scattered thunderstorms began forming over southwestern Nebraska and over Furnas, Gosper and Phelps counties. These storms were of the pulse variety, but in close enough proximity to exhibit some multicell characteristics. The strongest storm briefly strengthened enough to produce 3/4 inch hail, in Phelps county. A deep 991 mb surface low pressure system was over the Dakotas. These storms formed behind a cold front that moved through earlier in the day. Temperatures were in the middle 70s, with dewpoints falling from the lower 50s into the upper 40s. Instability was weak with MLCAPE more than 500 J/kg, but below 1000 J/kg. Deep layer shear was just below 30 knots.

NEBRASKA, West Scotts Bluff County 7 NE (BFF)Helig Fld Scots 17 1305MST 1313MST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail fell at the Minatare Lake State Recreation Area.

Box Butte County Alliance 17 1417MST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported in Alliance. Dawes County 7 N Crawford 17 1451MST 1454MST 0 0 0.00K 0.00K Funnel Cloud

The Chadron warning point relayed 15 reports of funnel clouds north of Crawford.

358 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, West

May 17 funnel cloud north of Crawford, NE. Dawes County 7 N Crawford 17 1454MST 4 NE Horn 1500MST 2.67 50 0 0 0.00K 0.00K Tornado (EF0)

The Chadron Warning Point received three reports of a tornado on the ground north of Crawford. No damage was reported.

Cheyenne County 8 N Lodgepole 17 1708MST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported. Cheyenne County 15 N Lodgepole 17 1717MST 0 0 0.00K 0.00K Hail (1.50)

Walnut to silver dollar size hail was reported. A passing upper level disturbance interacted with a moist and unstable environment and produced scattered strong to severe thunderstorms during the afternoon and early evening hours in the western Nebraska Panhandle. There were reports of large hail, funnel clouds, and a brief tornado.

Dawes County 14 SSE Crawford 18 1508MST 1510MST 0 0 0.00K 0.00K Hail (1.00)

Nickel to quarter size hail was reported. Dawes County 10 N Box Butte Res 18 1515MST 1517MST 0 0 0.00K 0.00K Hail (1.75)

Golf ball size hail was reported. Cheyenne County Brownson 18 1535MST 1537MST 0 0 0.00K 0.00K Hail (1.00)

There were several reports of quarter size hail in Brownson.

359 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, West Cheyenne County 12 NW Sidney 18 1540MST 1542MST 0 0 0.00K 0.00K Hail (1.00)

Penny to quarter sized hail was reported. Morrill County 14 NE Bridgeport 18 1545MST 1553MST 0 0 0.00K 0.00K Funnel Cloud

A well defined cone funnel persisted for several minutes. Morrill County 9 N Broadwater 18 1553MST 1558MST 0 0 0.00K 0.00K Funnel Cloud

The base of the funnel cloud lowered to 50 feet above the ground.

Morrill County 9 N Broadwater 18 1558MST 1601MST 1 50 0 0 0.00K 0.00K Tornado (EF0)

The tornado was on the ground for a few minutes before it lifted.

May 18 EF0 tornado north of Broadwater, NE. Cheyenne County Sidney 18 1610MST 1620MST 0 0 0.00K 0.00K Hail (1.00)

There were numerous reports of penny to quarter size hail in Sidney.

A synoptic pattern similar to the previous day produced several reports of large hail, funnel clouds and a brief tornado in the western Nebraska Panhandle during the late afternoon and early evening.

NEZ019-055 Cheyenne - Scotts Bluff 20 0834MST 1353MST 0 0 0.00K 0.00K High Wind

High pressure behind a cold front increased the pressure gradient over western Nebraska. Wind gusts of 50 to 60 mph were common during the afternoon.

360 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, West NEZ002 Dawes 24 0122MST 0322MST 0 0 0.00K 0.00K High Wind

Strong and gusty southerly winds developed over the northern Nebraska Panhandle. Wind gusts of 50 to 60 mph were observed along the Pine Ridge. Banner County 5 NW Harrisburg 26 2035MST 2040MST 0 0 0.00K 0.00K Hail (1.00)

Pea to quarter size hail was observed five miles northwest of Harrisburg.

An evening thunderstorm deposited hail over parts of Banner County.

Kimball County 5 NW Kimball 27 1305MST 1315MST 7.38 50 0 0 0.00K 0.00K Tornado (EF0)

A weak tornado touched down in open country northwest of Kimball. The tornado moved northeast and was in contact with ground for 10 minutes before it lifted just west of State Highway 71 north of Kimball. No damage was reported.

Banner County 6 S Harrisburg 27 1324MST 1327MST 0 0 0.00K 0.00K Funnel Cloud

A funnel cloud was observed six miles south of Harrisburg. Kimball County 5 N Owasco Station 27 1425MST 8 N Dix 1428MST 5.43 50 0 0 0.00K 0.00K Tornado (EF0)

The supercell thunderstorm that spawned the tornado northwest of Kimball produced another weak tornado northeast of Kimball. This weak tornado was on the ground for three minutes before it lifted. No damage was reported.

Cheyenne County 1 E Lodgepole 27 1450MST 1455MST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported at Lodgepole. Cheyenne County Sidney 27 1453MST 1458MST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported at Sidney. Sioux County 15 SE Harrison 27 1458MST 1503MST 2 50 0 0 0.00K 0.00K Tornado (EF0)

A weak tornado was on the ground for five minutes before it lifted. The observer was looking west from State Highway 71. No damage was reported. Sioux County 14 SSE Agate 27 1500MST 1502MST 0 0 0.00K 0.00K Funnel Cloud

A public report of a brief funnel cloud was relayed by KNEB Scottsbluff.

Box Butte County 18 W Hemingford 27 1505MST 13 WSW Nonpareil 1510MST 0.3 30 0 0 0.00K 0.00K Tornado (EF0)

A weak tornado touched down in open country south of State Highway 71 and lasted five minutes before it lifted. No damage was reported.

361 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, West Box Butte County 15 W Hemingford 27 1520MST 1530MST 0 0 0.00K 0.00K Hail (1.00)

Grass was covered with marble to quarter size hail. Dawes County 8 SE Crawford 27 1622MST 1625MST 0 0 0.00K 0.00K Hail (1.00)

Penny to quarter size hail was reported eight miles southeast of Crawford.

A passing upper level disturbance interacted with a moist and unstable environment which produced numerous severe thunderstorms with large hail, funnel clouds and a few tornadoes.

Sioux County 7 ENE Porter 28 1410MST 1415MST 0 0 0.00K 0.00K Funnel Cloud

A funnel cloud was reported eight miles north of Mitchell. Sioux County 12 ENE Porter 28 1423MST 1438MST 6.31 75 0 0 0.00K 0.00K Tornado (EF0)

A weak tornado touched down in open country 10 miles north-northeast of Mitchell. The tornado moved east-southeast. It lifted briefly before crossing State Highway 71 and lowered east of the highway. The tornado dissipated about four miles north of Lake Alice. No damage was reported.

Box Butte County 21 SW Nonpareil 28 1505MST 1510MST 2.16 50 0 0 0.00K 0.00K Tornado (EF0)

The supercell thunderstorm that spawned the EF0 tornado in southern Sioux County moved east into southwest Box Butte County. Another EF0 tornado developed about 14 miles northeast of Lake Alice and touched down a few times in open country before dissipating. No damage was reported.

Cheyenne County 3 W Lorenzo 28 1615MST 1620MST 0 0 0.00K 0.00K Hail (1.00)

Marble to quarter size hail was reported three miles west of Lorenzo.

Cheyenne County 3 NW Lorenzo 28 1630MST 1650MST 0 0 0.00K 0.00K Hail (1.00)

Pea to quarter size hail covered the ground three miles northwest of Lorenzo.

Cheyenne County 2 S Sidney 28 1659MST 1704MST 0 0 0.00K 0.00K Hail (1.00)

Pea to quarter size hail was reported two miles south of Sidney.

Cheyenne County 1 W Sidney 28 1705MST 1707MST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported one mile west of Sidney.

362 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, West Cheyenne County Sidney 28 1707MST 1712MST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported in Sidney. Cheyenne County 4 SSE Brownson 28 1713MST 1718MST 0 0 0.00K 0.00K Hail (1.75)

Golf ball size hail was reported six miles west of Sidney. Cheyenne County 3 ESE Sidney 28 1715MST 1718MST 0 0 0.00K 0.00K Hail (1.75)

Penny to golf ball size hail was reported two miles east of Sidney.

Cheyenne County 3 ENE Brownson 28 1720MST 1730MST 0 0 0.00K 0.00K Hail (1.00)

Marble to quarter size hail was reported three miles east-northeast of Brownson.

Cheyenne County 3 WNW Colton 28 1720MST 1745MST 0 0 0.00K 0.00K Hail (1.75)

Penny to golf ball size hail was reported four miles northeast of Sidney.

Cheyenne County 5 N Colton 28 1724MST 1727MST 0 0 0.00K 0.00K Hail (1.00)

Nickel to quarter size hail was reported eight miles northeast of Sidney.

Cheyenne County 2 WNW Sidney 28 1730MST 1740MST 0 0 0.00K 0.00K Hail (1.25)

Penny to half dollar size hail was reported two miles west-northwest of Sidney.

Cheyenne County Gurley 28 1840MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts were estimated at 50 to 60 mph in Gurley. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cheyenne County 2 S Sidney 28 1857MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts were estimated at 50 to 60 mph two miles south of Sidney.

Late afternoon and early evening thunderstorms over portions of the western Nebraska Panhandle produced large hail, damaging winds, a few tornadoes, and a funnel cloud. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

NEZ002 Dawes 31 1122MST 0 0 0.00K 0.00K High Wind A low pressure system over western South Dakota generated strong and gusty northwest winds to the western Nebraska Panhandle. Wind gusts of 50 to 60 mph were common.

363 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEVADA, South Nye County 2 NNW Pahrump Hafen Arpt 07 1435PST 1445PST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail covered the ground. A cold low pressure system brought scattered thunderstorms to the Mojave Desert. A few storms produced small hail.

NEW HAMPSHIRE, North and Central Coos County 1 W Dalton 25 2245EST 28 0730EST 0 0 0.00K 0.00K Flood

Heavy rain produced flooding on the Connecticut River at Dalton (flood stage 17.0 ft) which crested at 18.15 ft.

Low pressure tracking along a slow moving cold front produced 1.5 to 3 inches of rain across northern and central New Hampshire.

NHZ014 Coastal Rockingham 25 2315EST 26 0130EST 0 0 15.0K 0.00K Coastal Flood

The highest astronomical tides of the month combined with a weak, but developing, area of low pressure (1000 mb) near Cape Cod to produce coastal flooding in coastal Rockingham County during the late evening hours of May 25th. Fortunately winds were relatively light, with relatively modest seas along the coast. Flooding occurred on several of the lower back roads in Hampton, including Brown Avenue.

Coos County 1 NNE Gorham 26 0040EST 27 1652EST 0 0 0.00K 0.00K Flood

Heavy rain produced flooding on the Androscoggin River at Gorham (flood stage 8.0 ft) which crested at 8.46 ft.

Low pressure tracking along a slow moving cold front produced 1.5 to 3 inches of rain across northern and central New Hampshire.

NEW HAMPSHIRE, Southern Cheshire County Gilsum 21 1811EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds downed a tree onto wires near the Surry town line.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cheshire County 1 NW Eastview 21 1815EST 0 0 0.00K 0.00K Hail (1.25)

Hillsborough County Hancock 21 1840EST 0 0 0.00K 0.00K Hail (0.88)

Cheshire County Harrisville 21 1845EST 0 0 0.00K 0.00K Hail (1.00)

Cheshire County Dublin 21 1855EST 0 0 0.00K 0.00K Hail (0.88)

Cheshire County Rindge 21 2223EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds downed a tree and wires on Route 119. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

364 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW HAMPSHIRE, Southern Cheshire County Troy 21 2228EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Wires were downed on Route 12 at Gap Mountain Road. A backdoor cold front pushing south through New England produced isolated severe thunderstorms in southwest New Hampshire during the afternoon and evening. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

NEW JERSEY, Northeast Hudson County 1 S Union City 08 0745EST 2 ESE West End 0815EST 0 0 0.00K 0.00K Flash Flood

In Hoboken, flood waters blocked the intersection of 3rd and Clinton St. In Jersey City, multiple cars were stranded in high water at the intersection of 18th St. and Grove Street. The local fire department performed water rescues. Multiple cars were also stuck in high waters on Routes 1 and 9 between Manhattan Ave. and Secaucas Road.

Bergen County 1 NE Rochelle Park 08 0809EST 1 WNW Maywood 0815EST 0 0 0.00K 0.00K Flash Flood

A vehicle was stuck in flood waters on W. Pleasant Ave. in Hackensack.

An occluded front associated with a cutoff low pressure system slowly advanced towards the area from the south. Thunderstorms training over the same area produced heavy rain that coincided with high tide, which resulted in flash flooding.

Passaic County 1 S Skyline Lake 11 1430EST 0 0 3.00K Lightning

Lightning struck a chimney of a house on Finch Road, shorting out circuits and knocking siding off the side of the house. No extensive damage was reported. This was originally reported by a Skywarn Spotter, that was confirmed by a local fire department.

Essex County 1 W South Orange 11 1433EST 0 0 2.00K Thunderstorm Wind (61EG)

Multiple trees were reported down across the town of South Orange.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Essex County Ampere 11 1434EST 0 0 1.00K Thunderstorm Wind (56EG)

A tree was reported down on Main Street between Oakwood and Glenwood Avenues.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Hudson County Kearny 11 1438EST 0 0 2.00K Thunderstorm Wind (61EG)

Wires and a large tree branch were reported down on Washington Place.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Essex County Nutley 11 1443EST 0 0 2.00K Thunderstorm Wind (61EG)

Multiple trees were reported down along Edgewood Avenue. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Bergen County 1 WNW East Rutherford 11 1507EST 1537EST 0 0 0.00K 0.00K Flash Flood

In Rutherford, Hackensack St. was closed near the Rt. 17 off ramp due to flooding. Several motorists were stranded due to high water.

365 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW JERSEY, Northeast

Scattered showers and thunderstorms congealed into a squall line ahead of an approaching cold front during the afternoon. Isolated severe thunderstorms were embedded within the line, mainly over the Northeast NJ Metro area. Heavy rain associated with this line produced flash flooding in Bergen County.

Bergen County 1 NNW Glen Rock 23 1510EST 0 0 5.00K Lightning

Lightning was reported to strike a home just north of Glen Rock on Rutland Avenue.

An approaching pre-frontal trough, ahead of a cold front, triggered thunderstorms over Northeast New Jersey during the afternoon, causing a lightning strike in Bergen County.

Bergen County Waldwick 23 1519EST 1549EST 0 0 0.00K 0.00K Flash Flood

Chestnut St. in Allendale was closed due to flooding. Bergen County 2 S Campgaw 23 1630EST 1 WSW Upper Saddle River 1700EST 0 0 0.00K 0.00K Flash Flood

East Crescent Ave. was closed due to flooding with one vehicle stranded in flood waters in Allendale. In Wyckoff, 3 vehicles became stranded in 3 feet of water on Russell Ave. near Rt. 208. The motorists of two of these vehicles were trapped inside and had to be rescued.

Bergen County Hillsdale 23 1945EST 2347EST 0 0 0.00K 0.00K Flash Flood

The Pascack Brook at Westwood exceeded its flood stage of 5.0 feet at 8:45 pm EST. The river crested at 5.34 ft at 10:30 pm and fell back within its banks at 12:30 am on May 24. This resulted in around one foot of flowing water on Washington Ave. in Hillsdale and Broadway north of Lake St. in Westwood. Three businesses suffered water damage on Broadway as a result.

A pre-frontal trough ahead of a cold front triggered numerous showers and thunderstorms. These storms produced heavy rain, which resulted in flash flooding across portions of Bergen County, New Jersey.

NJZ108 Eastern Union 25 1300EST 1600EST 0 0 20.0K 0.00K Strong Wind

Strong winds occurred in northeast New Jersey behind a deep area of low pressure.

NEW JERSEY, South and Northwest Hunterdon County Three Bridges 08 0800EST 1 SE Flemington Jct 1400EST 0 0 0.00K 0.00K Flood

The heavy rain caused poor drainage flooding and affected westbound U.S. Route 22 east of Potterstown Road in Readington Township. In addition, flooding was reported along Rockafellows Mill Road near the Rockafellows Mill Bridge. Event precipitation totals included 3.20 inches in Franklin Township, 2.71 inches in Lebanon, 2.66 inches in Clinton, 2.58 inches in Flemington and 2.46 inches in Readington Township.

Mercer County 1 WSW Lewisville 08 0800EST 1 S Mercerville 1400EST 0 0 0.00K 0.00K Flood

The heavy rain caused roadway and poor drainage flooding in Mercer County. Event precipitation totals included 3.34 inches in Lawrence Township, 3.10 inches in Hamilton Township, 2.85 inches in Robbinsville Township and 2.10 inches in Princeton.

366 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW JERSEY, South and Northwest

Bands of heavy rain during the first half of the day on the 8th that preceded the passage of an occluded front caused poor drainage flooding in Hunterdon and Mercer Counties. Event precipitation totals average between 2.0 and 3.5 inches. The heavy rain was caused by a slow moving low pressure system that went from the South Carolina coast on the morning of the 6th, to North Carolina on the morning of the 7th, southern West Virginia on the morning of the 8th and Pennsylvania on the morning of the 9th. The heavy rain ended after the low's occluded front passed through the region in the middle of the day.

Somerset County 1 SW Lyons 11 1410EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A severe thunderstorm knocked down a couple of trees in Bernards Township.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Morris County 1 SW New Vernon 11 1415EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A severe thunderstorm knocked down a couple of trees in Harding Township.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Somerset County Watchung 11 1420EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A severe thunderstorm also knocked down a couple of trees in Watchung.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Gloucester County 2 SE Star Cross 11 1455EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A severe thunderstorm knocked down a couple of trees in Franklin Township.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Atlantic County 2 ESE Cardiff 11 1545EST 0 0 1.00K 0.00K Lightning

Lightning from a line of thunderstorms caused about 600 homes and businesses to lose power in Atlantic County with a few dozen additional outages in Cape May and Cumberland Counties. Traffic lights were out along the Black Horse Pike (U.S. Routes 40 and 322) in Egg Harbor Township. A line of thunderstorms preceding a cold front during the afternoon of the 11th caused isolated wind damage, mainly in the northern part of New Jersey. Lightning strikes caused power outages in southeastern New Jersey.

Morris County Parsippany 23 1630EST Boonton 1830EST 0 0 0.00K 0.00K Flash Flood

Thunderstorms with heavy downpours caused flash flooding in the eastern part of Morris County. A few roadways were covered with water and the East Ditch overflowed its banks. Elsewhere in Morris County, some poor drainage flooding occurred. Event precipitation totals included 2.91 inches in Parsippany, 2.75 inches in Randolph, 2.63 inches in Roxbury, 2.62 inches in Denville, 2.58 inches in Boonton and 2.46 inches in Hanover Township.

A series of thunderstorms with heavy downpours ultimately caused flash flooding in eastern Morris County. Event precipitation totals averaged two to three inches.

NJZ016>019 Camden - Gloucester - Northwestern Burlington - Salem 25 0500EST 2130EST 0 0 0.00K 0.00K Astronomical Low Tide

The combination of a strong northwest flow around an anomalously strong (for late May) low pressure system slowly moving through the New England coastal waters and larger tidal spreads associated with the full moon caused pockets of blowout tides to occur during both low tide cycles on the 25th along tidal sections of the Delaware River and its tributaries. The lowest tide at Reedy Island in New Castle County Delaware reached 1.69 feet below mean lower low water. The lowest tide that day in Philadelphia also reached 1.69 feet below mean lower low water. Blowout tides start at 1.80 feet below mean lower low water.

367 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW JERSEY, South and Northwest NJZ013>015-020- Eastern Cape May - Eastern Monmouth - Eastern Ocean - Mercer - Western Cape May - Western 023>024-026 Monmouth - Western Ocean 25 0900EST 1700EST 0 0 2.0K 0.00K Strong Wind

Strong northwest winds circulating around a slow moving low pressure system traveling through the New England coastal waters affected New Jersey during the daytime on the 25th. While numerous wind gusts reached 35 to 40 mph in the state, some higher wind gusts of around 45 mph were reported in Cape May, Mercer, Monmouth and Ocean Counties. These wind gusts damaged some weak tree limbs and wires. Peak wind gusts included 48 mph in Seaside Park (Ocean County), 45 mph in Robinsville (Mercer County), Eatontown Monmouth County) and Sea Girt (Monmouth County) and 44 mph in Belmar (Monmouth County) and Cape May (Cape May County).

NEW MEXICO, Central and North

NMZ501>540 Albuquerque Metro Area - Central Highlands - Chaves County Plains - Chuska Mountains - Curry County - De Baca County - East Slopes Of The Sangre De Cristo Mountains - Eastern Lincoln County - Eastern San Miguel County - Estancia Valley - Far Northeast Highlands - Far Northwest Highlands - Guadalupe County - Harding County - Jemez Mountains - Lower Chama River Valley - Lower Rio Grande Valley - Northeast Highlands - Northern Sangre De Cristo Mountains Above 9500 Feet/red River - Northwest Highlands - Northwest Plateau - Quay County - Raton Ridge/johnson Mesa - Roosevelt County - San Francisco River Valley - San Juan Mountains - Sandia/manzano Mountains - Santa Fe Metro Area - South Central Highlands - South Central Mountains - Southern Sangre De Cristo Mountains Above 9500 Feet - Southwest Chaves County - Southwest Mountains - Union County - Upper Rio Grande Valley - Upper Tularosa Valley - West Central Highlands - West Central Mountains - West Central Plateau - West Slopes Of The Sangre De Cristo Mountains

01 0000MST 31 2359MST 0 0 0.00K 0.00K Drought

Drought severity continued to increase across portions of eastern New Mexico throughout the month. Overall, May fared better than previous months with numerous days of at least some measurable precipitation. Portions of the Rio Grande Valley and eastern plains, for example, recorded near to above normal precipitation. Areas in eastern Catron County as well as most of Socorro County also experienced near to above normal precipitation. North-central portions of the state, the south-central mountains and areas across the west had 50% or lower percent of normal precipitation for the month. The coverage of Exceptional Drought (D4) nearly doubled, encompassing most of central New Mexico and the eastern half of the state. At the beginning of the month D4 conditions impacted 25% of the area and by month's end that had increased to 45%. The remaining drought categories remained nearly the same. The only areas in New Mexico that were not classified as D4 were in the D3 category, or extreme drought, while the the northeast corner and north central areas were in D2 or severe drought.

NMZ520-525-535 Curry County - Lower Rio Grande Valley - Upper Tularosa Valley

01 1600MST 02 0100MST 0 0 0.00K 0.00K High Wind

A strong back door cold front plunged down the eastern plains throughout the day on May 1. Very gusty winds developed behind this feature. Significant wind speeds were focused in the northeast and eastern portions of the state throughout the day with the front stalling out along the east central plains in the afternoon. Close to sunset the front began its second surge south and west across the state. During the evening hours into the early morning hours many location in the upper Tularosa valley and the south central mountains hit high wind criteria. In the areas where the highest wind was recorded forecast 3-hour pressure changes were 17-20 mb, and the locations pin pointed by these changes are where the highest winds occurred.

Torrance County 4 SSW Moriarty Arpt 09 1700MST 7 NNE Moriarty 1730MST 0 0 0.00K 0.00K Dust Devil

A large dust devil or landspout tornado tore through open rangeland from near Estancia to Moriarty producing significant local media attention. No damage was reported. A warm, dry, and unstable airmass combined with a weak mid level moist layer produced a well defined and large dust devil or landspout tornado hybrid over the Estancia Valley. Numerous pictures were obtained of this feature which garnered signature local media coverage.

368 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW MEXICO, Central and North Chaves County 10 WSW Dexter 10 0235MST 0250MST 0 0 0.00K 0.00K Hail (1.50)

Hail began at the Roswell Correctional Facility around 330am and grew to the size of ping pong balls at 340am and remained severe for several minutes afterward. A back door cold front moved south on the eastern plains and spawned a few severe thunderstorms over Chaves County. These storms were rare in that they developed during the pre-dawn hours of May 10th and produced large hail and heavy rainfall.

NMZ519 Albuquerque Metro Area 17 1759MST 1803MST 0 0 0.00K 0.00K High Wind

Roosevelt County 1 SSW Portales 17 2140MST 2145MST 0 0 0.75K 0.00K Thunderstorm Wind (55EG)

Powerlines down at intersection of Road 7 and T. Very dry low level conditions combined with weak mid level moisture and instability across central and eastern New Mexico to produce scattered virga showers and gusty thunderstorms. A few of these showers and thunderstorms produced strong outflow winds around the Albuquerque metro area and around Roosevelt County. A well-defined dust foot was observed on the Albuquerque West Mesa with a 59mph wind gust at the Albuquerque Sunport, while strong winds around Portales took out some powerlines to the southwest of town. Note: The estimated wind gust of 55 knots is equivalent to 63 mph.

Los Alamos County 2 ENE Los Alamos 22 1208MST 2 NNW (LAM)Los Alamos Airport 1213MST 0 0 30.00K 0.00K Dust Devil

Roof of gymnasium torn off and dropped onto library and playground area at Barranca Mesa Elementary School.

Warm, dry, and unstable conditions with a very weak layer of mid-level moisture produced a destructive dust devil over Los Alamos. This dust devil produced damage to Barranca Elementary school.

Colfax County 4 SSW Cimarron 24 1120MST 1125MST 0 0 0.00K 0.00K Hail (0.75)

Dime to penny size hail 2 miles south southwest of Philmont Scout Ranch.

Colfax County 11 WNW Maxwell 24 1445MST 1450MST 0 0 0.00K 0.00K Hail (0.88)

Nickel size reported with rain 11 miles west southwest of Maxwell.

Chaves County 16 ENE Dunken 24 1625MST 1635MST 0 0 0.00K 0.00K Hail (1.75)

Golf ball size hail reported near intersection of highway 82 and state road 13.

Colfax County 3 NNE (RTN)Raton Crews Apt 2 4 1625MST 1630MST 0 0 0.00K 0.00K Hail (1.75)

Mixture of golf ball and pea size hail reported at the NRA Whittington Center.

Chaves County (ROW)Roswell Ind Airport 24 1756MST 1809MST 0 0 0.00K 0.00K Thunderstorm Wind (61MG)

369 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW MEXICO, Central and North

Roswell tower confirmed strong winds, dust devils, and blowing dust with virga bomb descending from anvil of distant thunderstorm. No damage noted to tower, terminal, or aircrafts at airport.

Note: The measured wind gust of 61 knots is equivalent to 70 mph.

NMZ538 Chaves County Plains 24 2050MST 2110MST 0 0 0.00K 0.00K Dust Storm

Moisture and weak instability present across the eastern plains combined with afternoon heating to produce scattered showers and thunderstorms. A few of these thunderstorms became locally severe with large hail and gusty winds. Virga descending from thunderstorm anvils spreading over Roswell produced wind gusts up to 70 mph and significant blowing dust. Heavy rainfall was also reported with these storms across the northeast plains. Accumulating hail along Interstate 25 near Highway 64 created a rollover accident.

Chaves County 5 N Acme 25 1537MST 1547MST 0 0 0.00K 0.00K Thunderstorm Wind (56MG)

Combination of possible virga and outflow from severe thunderstorm farther south of the area at Eight Mile Draw RAWS.

Note: The measured wind gust of 56 knots is equivalent to 64 mph. Roosevelt County 4 SW Floyd 25 1615MST 1625MST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail reported near Floyd. Roosevelt County 2 E Portales Arpt 25 1615MST 1620MST 0 0 0.00K 0.00K Hail (0.88)

Dime to nickel size hail reported near Portales airport. Roosevelt County 2 WSW Portales 25 1620MST 1630MST 0 0 0.00K 0.00K Hail (1.75)

Pea size hail with a few golf ball sized hail reported near Portales.

Roosevelt County 2 W Portales 25 1624MST 1629MST 0 0 0.00K 0.00K Hail (1.25)

Quarter to half dollar size with heavy rain reported in Portales.

Curry County 5 N Pleasant Hill 25 1656MST 1701MST 0 0 0.00K 0.00K Hail (0.88)

Mixture of dime and nickel size hail 5 miles north of Pleasant Hill.

Curry County 9 NW Pleasant Hill 25 1659MST 1704MST 0 0 0.00K 0.00K Hail (1.75)

Golf ball sized hail with heavy rain reported 9 miles northwest of Pleasant Hill.

370 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW MEXICO, Central and North Curry County 9 NW Pleasant Hill 25 1659MST 1703MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Spotter reported 60mph peak wind gust 9 miles northwest of Pleasant Hill.

A sharp dryline over the east central and southeast plains of New Mexico, coupled with deep moisture and instability, provided the focus for scattered strong to severe thunderstorms. Large hail was the main impact from these severe thunderstorms within the area from southwest Chaves County northeast across Roosevelt and Curry counties. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

NMZ512 West Slopes Of The Sangre De Cristo Mountains 30 1200MST 31 2359MST 0 0 5.0K 0.00K Wildfire

The Tres Lagunas Fire burned 10,219 acres within and near prized recreation and resource areas. The fire was human-caused when electrical lines went down on May 30, igniting Ponderosa pine and other timbers. The assessment report by the Burned Area Emergency Response team indicated this was a relatively healthy wildfire burn and included a small area of re-burn in the 2002 Viveash Fire. Approximately 15% of the burn was high intensity, 13% moderate, and 72% low. The National Interagency Coordination Center indicated the total cost of this fire will near $3.5 million, including efforts to reduce the effects of monsoonal flash flooding.

NMZ511 Jemez Mountains 31 1330MST 2359MST 0 0 5.0K 0.00K Wildfire

A downed power line near Sulphur Creek Road in the Jemez Mountains ignited a wildfire that spread into the Valles Caldera National Preserve through much of June. No damage was reported with this fire through the month of June however prized wilderness and conservation areas were torched. The most significant fire growth period occurred during the first week of June when it grew from 1,745 acres to just over 18,000 acres. Early surveys from the Burned Area Emergency Response assessment indicate this was a healthy forest burn and not the recent destructive kinds observed recently over the state. The assessment showed that approximately 74% of the acreage within the fire perimeter were either unburned or received a low-severity burn, 23% sustained a burn of a moderate severity, and approximately 3% burned at a high severity. The total cost of battling this wildfire according to the National Interagency Coordination Center is near $2.7 million dollars.

NEW MEXICO, South Central and Southwest

NMZ401>417 Central Tularosa Basin - East Slopes Sacramento Mountains Below 7500 Feet - Eastern Black Range Foothills - Lowlands Of The Bootheel - Northern Dona Ana County - Otero Mesa - Sacramento Mountains Above 7500 Feet - Sierra County Lakes - Southern Dona Ana County/mesilla Valley - Southern Gila Foothills/mimbres Valley - Southern Gila Highlands/black Range - Southern Tularosa Basin - Southwest Desert/lower Gila River Valley - Southwest Desert/mimbres Basin - Uplands Of The Bootheel - Upper Gila River Valley - West Slopes Sacramento Mountains Below 7500 Feet

01 0000MST 31 2359MST 0 0 0.00K 0.00K Drought

Another very dry month kept almost all of Southwest and South Central New Mexico in Extreme(D3) to Exceptional(D4) drought. All locations in region reported well below normal precipitation.

NEW MEXICO, Southeast

NMZ028 Eddy County Plains 01 2100MST 2300MST 0 0 0.00K 0.00K High Wind

Strong northeast winds occurred behind a cold front over portions of the southeast New Mexico Plains.

Eddy County Lakewood 23 1340MST 1345MST 0 0 Hail (1.75)

A thunderstorm moved over Eddy County and produced golfball sized hail in Lakewood.

371 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW MEXICO, Southeast Eddy County 2 N Lakewood 23 1343MST 1348MST 0 0 Hail (0.75)

A thunderstorm moved over Eddy County and produced penny sized hail two miles north of Lakewood.

Eddy County Carlsbad 23 1717MST 1718MST 0 0 6.00K Thunderstorm Wind (70EG)

A thunderstorm moved over Eddy County and produced an 80 mph wind gust which peeled back the roof of the VFW in Carlsbad. The cost of damage is a rough estimate. A dryline was located across the Permian Basin and the Trans Pecos, and a cold front was in the Texas panhandle. Good lower level moisture was present to the east of the dryline, and there was plentiful upper level moisture available. The atmosphere was very unstable. Mid-level lift was present with an upper level disturbance that moved over the area. This combination of moisture, lift, and instability helped to create several severe thunderstorms that produced large hail and damaging winds across Southeast New Mexico. Note: The estimated wind gust of 70 knots is equivalent to 81 mph.

Eddy County 5 S Carlsbad 25 1611MST 1612MST 0 0 Thunderstorm Wind (52EG)

A thunderstorm moved over Eddy County and produced a 60 mph wind gust five miles south of Carlsbad on US Highway 285.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Lea County 1 E Caprock 25 1630MST 1635MST 0 0 Hail (0.75)

Lea County Hobbs 25 1745MST 1746MST 0 0 2.00K Lightning

A thunderstorm moved over Lea County and lightning struck a tank battery causing fires west and southwest of Hobbs. The cost of damage is a very rough estimate. Lea County 1 SSE Lovington 25 1745MST 2 NW Hobbs 1815MST 0 0 500.00K 0.00K Thunderstorm Wind (52EG)

A thunderstorm moved over Lea County and power lines were knocked down from Lovington to Hobbs along State Highway 18. Wind gusts were estimated to be 60 mph. The cost of damage is a very rough estimate.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Lea County Lovington 25 1805MST 1806MST 0 0 Thunderstorm Wind (52EG)

A thunderstorm moved over Lea County and produced a 60 mph wind gust in Lovington.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Lea County 4 SW Hobbs 25 1815MST 1816MST 0 0 Thunderstorm Wind (50MG)

A thunderstorm moved over Lea County and produced a 58 mph wind gust four miles southwest of Hobbs.

Note: The measured wind gust of 50 knots is equivalent to 58 mph.

372 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW MEXICO, Southeast Lea County Hobbs 25 1815MST 1845MST 0 0 300.00K 0.00K Thunderstorm Wind (52EG)

A thunderstorm moved over Lea County and knocked down power lines west and south of Hobbs as well as in Hobbs. Fires started due to the downed power lines. A transformer exploded and others burned on power poles in Hobbs. The cost of damage is a very rough estimate. An upper level disturbance had moved over the area, and moisture was present. This led to the development of thunderstorms across Southeast New Mexico which resulted in severe wind gusts. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. NEW YORK, Central Oneida County 1 S West Branch 15 1101EST 0 0 0.00K 0.00K Hail (0.88)

An isolated thunderstorm produced large hail across central New York.

Onondaga County 1 SE Liverpool 21 0015EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Large tree was blown down on a car by thunderstorm winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Seneca County Romulus 21 1145EST 0 0 0.00K 0.00K Hail (1.00)

Seneca County 1 E Waterloo 21 1210EST 0 0 0.00K 0.00K Hail (0.88)

Cayuga County 1 NE Aurora 21 1212EST 0 0 0.00K 0.00K Hail (0.75)

Seneca County 1 E Waterloo 21 1213EST 0 0 0.00K 0.00K Hail (1.00)

Seneca County 1 SE Waterloo Povero Arpt 21 1224EST 0 0 0.00K 0.00K Hail (1.75)

Seneca County 1 SE Waterloo Povero Arpt 21 1224EST 0 0 10.00K 0.00K Hail (1.75)

Madison County North Brookfield 21 1500EST 0 0 0.00K 0.00K Hail (1.25)

Most of the hail was one inch in diameter. Oneida County Waterville 21 1500EST 0 0 0.00K 0.00K Hail (0.88)

Oneida County 1 SE Stockwell 21 1507EST 0 0 0.00K 0.00K Hail (0.88)

Seneca County 1 E Waterloo 21 1648EST 0 0 0.00K 0.00K Hail (0.88)

Seneca County 1 E Waterloo 21 1648EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Trees reported down at the intersection of State Route 96 and Burgess Road in the Village of Waterloo.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

373 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, Central Seneca County 1 E Waterloo 21 1700EST 0 0 0.00K 0.00K Hail (1.00)

Seneca County 1 SW Seneca Falls 21 1705EST 0 0 0.00K 0.00K Hail (0.75)

Seneca County Fayette 21 1705EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Numerous trees, power poles and electrical lines were blown down in and around Fayette by thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Onondaga County 1 W Skaneateles 21 1722EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Power pole and wires were blown down by thunderstorm winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cayuga County 1 NW Union Spgs 21 1728EST 0 0 0.00K 0.00K Hail (1.25)

Cayuga County Scipio Center 21 1730EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down by thunderstorm winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cayuga County Niles 21 1740EST 0 0 25.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds blew a barn down and downed a lot of trees in and around Niles.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cayuga County 1 S Moravia 21 1743EST 0 0 0.00K 0.00K Hail (0.88)

Onondaga County 2 SSW Lewiston Manor 21 1745EST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down across southern portion of the city of Syracuse and across northern sections of Lafayette.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Onondaga County Nedrow 21 1749EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Tree was blown down on a house by thunderstorm winds.. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cortland County Preble 21 1800EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Tree was blown down blocking Route 11. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Onondaga County 1 W Tully 21 1800EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm also produced small hail and heavy rain. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

374 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, Central Madison County 1 SSE Oneida 21 1810EST 0 0 0.00K 0.00K Hail (0.88)

Cayuga County Scipio Center 21 1810EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down by thunderstorm winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oneida County Vernon Center 21 1833EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Small hail was accompanied by an estimated 50 to 60 mph winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oneida County Clinton 21 1845EST 0 0 0.00K 0.00K Hail (0.75)

Oneida County 1 E New Hartford 21 1845EST 0 0 0.00K 0.00K Hail (0.75)

Oneida County 1 E Boonville 21 1850EST 0 0 0.00K 0.00K Hail (1.00)

Oneida County 1 E New Hartford 21 1855EST 0 0 0.00K 0.00K Hail (0.75)

Also high wind reported with numerous tree limbs down. Oneida County 1 E New Hartford 21 1855EST 0 0 0.00K 0.00K Hail (0.75)

Also high wind reported with numerous tree limbs down. Oneida County 1 E Utica 21 1855EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees was blown down by thunderstorm winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oneida County 1 E New Hartford 21 1900EST 0 0 0.00K 0.00K Hail (1.00)

Oneida County Boonville 21 1900EST 0 0 0.00K 0.00K Hail (1.00)

Oneida County Clinton 21 1900EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Multiple trees were blown down across central part of the county from 745 pm to 800 pm.

A warm front lingered across central New York State during the late afternoon and early evening hours of Tuesday, May 21st 2013. This front resulted in a broken line of storms that produced hail, along with wind damage. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Tioga County 1 E Spencer 22 1017EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees were snapped on Route 96 near Halsey Valley Road by thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

375 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, Central Tioga County 1 E Spencer 22 1100EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down by strong thunderstorm winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Broome County 1 SE Glen Aubrey 22 1114EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Wires were blown down in Glen Aubrey by thunderstorm winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Broome County 1 SSW North Fenton 22 1132EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down by thunderstorm winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oneida County Lee Center 22 1135EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Numerous trees and wires were blown down by thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Broome County 1 SSW Binghamton 22 1140EST 0 0 0.00K 0.00K Hail (0.88)

Broome County Port Crane 22 1144EST 0 0 0.00K 0.00K Hail (0.75)

Broome County Kirkwood 22 1145EST 0 0 0.00K 0.00K Hail (1.00)

Broome County 1 N West Colesville 22 1145EST 0 0 0.00K 0.00K Hail (0.88)

Broome County 1 SSW Binghamton 22 1145EST 0 0 0.00K 0.00K Hail (1.00)

Broome County Port Crane 22 1149EST 0 0 0.00K 0.00K Hail (1.00)

Broome County Harpursville 22 1155EST 0 0 0.00K 0.00K Hail (1.00)

Otsego County Wells Bridge 22 1200EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Tree was blown down on primary wires and on a car by thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Delaware County Davenport Center 22 1225EST 0 0 20.00K 0.00K Thunderstorm Wind (50EG)

Tree was blown down on house by thunderstorm winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Otsego County 1 NW Milford 22 1229EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Tree was blown down on wires which blocked County Highway 58.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

376 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, Central Delaware County 1 NNW Cooks Falls 22 1230EST 0 0 0.00K 0.00K Hail (1.00)

Sullivan County Roscoe 22 1230EST 0 0 0.00K 0.00K Hail (0.88)

Delaware County East Meredith 22 1230EST 0 0 20.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds blew tree down on house. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Sullivan County Tennanah Lake 22 1232EST 0 0 0.00K 0.00K Hail (0.88)

Sullivan County Roscoe 22 1235EST 0 1 10.00K 0.00K Hail (1.75)

Person injured by falling hail at the campground in Roscoe as he was trying to seek shelter in bath house at campground.

Sullivan County Roscoe 22 1237EST 0 0 5.00K 0.00K Hail (1.75)

Sullivan County Livingston Manor 22 1255EST 0 0 5.00K 0.00K Hail (1.75)

Sullivan County Debruce 22 1303EST 0 0 5.00K 0.00K Hail (1.75)

Sullivan County Neversink 22 1407EST 0 0 0.00K 0.00K Hail (0.75)

Oneida County 1 N Camden 22 1612EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Trees and wires were blown down by thunderstorm winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oneida County Lee Center 22 1624EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Numerous trees and wires were blown down by thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oneida County 1 E New Hartford 22 1706EST 0 0 0.00K 0.00K Hail (0.75)

Oneida County 1 E New Hartford 22 1707EST 0 0 0.00K 0.00K Hail (1.00)

Oneida County 1 E New York Mills 22 1707EST 0 0 0.00K 0.00K Hail (1.00)

Oneida County Whitesboro 22 1710EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Half of a tree was blown down by thunderstorm winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

377 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, Central Oneida County Whitesboro 22 1711EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Trees and wires were blown down by thunderstorm winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oneida County 1 NE Camden 22 1740EST 0 0 5.00K 0.00K Hail (1.75)

Steuben County 2 W South Hornell 22 1810EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Numerous trees and wires were blown down in Hornellsville by thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Steuben County Howard 22 1819EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Numerous trees were blown down by thunderstorm winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oneida County 1 N Camden 22 1832EST 0 0 20.00K 0.00K Thunderstorm Wind (50EG)

Large oak tree fell on house, along with power lines down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oneida County 2 WSW Camden 22 1837EST 0 0 0.00K 0.00K Hail (1.00)

Oneida County 3 S Thompson Corners 22 1840EST 0 0 10.00K 0.00K Hail (2.00)

Oneida County 1 NE Camden 22 1840EST 0 0 5.00K 0.00K Hail (1.75)

Oneida County 1 N Camden 22 1840EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down on Railroad Street by thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oneida County 2 N Taberg 22 1845EST 0 0 10.00K 0.00K Hail (2.50)

Oneida County Pt Rock 22 1855EST 0 0 0.00K 0.00K Hail (1.00)

Oneida County Ava 22 1907EST 0 0 0.00K 0.00K Hail (1.00)

Yates County Porter Corner 22 1920EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down by thunderstorm winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oneida County Woodgull 22 1940EST 0 0 0.00K 0.00K Hail (1.00)

378 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, Central Cayuga County 1 S Moravia 22 2005EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Power poles were blown down across Glen Cove Road. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Onondaga County Otisco 22 2016EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Broome County 1 E West Endicott 22 2031EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down on Watson Boulevard. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Madison County 1 SSE Oneida 22 2107EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Trees and wires were blown down across Loomis Road. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Madison County 1 E Canastota 22 2120EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Multiple trees were blown down in village by thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oneida County 1 NW Rome 22 2128EST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)

Trained spotter reported a measured gust of 54 knots. Note: The measured wind gust of 54 knots is equivalent to 62 mph. Oneida County 1 NW Rome 22 2129EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Trained spotter reported estimated wind speeds of 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Oneida County Westernville 22 2130EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Power lines were blown down across Main Street. A warm front lifted north of New York State during the late morning into the evening hours of Wednesday, May 22nd 2013. This front resulted in a cluster of storms that produced large hail and wind damage. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Onondaga County 1 W Tully 29 1541EST 0 0 0.00K 0.00K Hail (1.75)

Seneca County 1 E Waterloo 29 1544EST 0 0 0.00K 0.00K Hail (1.00)

Onondaga County Jacks Reef 29 1545EST 0 0 0.00K 0.00K Hail (1.00)

Onondaga County Jordan 29 1545EST 0 0 0.00K 0.00K Hail (1.50)

379 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, Central Seneca County 1 E Waterloo 29 1545EST 0 0 0.00K 0.00K Hail (1.50)

Onondaga County 1 NE Brewerton 29 1548EST 0 0 20.00K 0.00K Thunderstorm Wind (50EG)

Tree was blown down on house. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Seneca County 1 SW Seneca Falls 29 1550EST 0 0 0.00K 0.00K Hail (1.25)

Cortland County 1 N Tripoli 29 1555EST 0 0 0.00K 0.00K Hail (1.00)

Onondaga County 2 SSW Lewiston Manor 29 1600EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Trees and wires were blown down near Webster school. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Onondaga County 2 SSW Lewiston Manor 29 1602EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Numerous trees and wires were blown down across the city. Tree also was blown down on car in Assumption Cemetery.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Onondaga County 2 SSW Lewiston Manor 29 1604EST 0 0 20.00K 0.00K Thunderstorm Wind (52EG)

Numerous trees were blown down with the highest concentration of damage on the north and east side of the city of Syracuse.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Madison County Georgetown 29 1610EST 0 0 0.00K 0.00K Hail (2.00)

Some hail was slightly bigger than 2 inches in diameter. Onondaga County 2 SSW Lewiston Manor 29 1610EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Large tree was uprooted on Grant Boulevard. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Chenango County Otselic 29 1613EST 0 0 0.00K 0.00K Hail (2.00)

Oneida County Whitesboro 29 1613EST 0 0 0.00K 0.00K Hail (1.00)

Chenango County 3 NNE Sherburne 29 1615EST 0 0 0.00K 0.00K Hail (1.75)

Tree were also blown down. Chenango County 3 NNE Sherburne 29 1615EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Tree were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

380 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, Central Cortland County 2 SSE Willet 29 1619EST 0 0 0.00K 0.00K Hail (1.00)

Cortland County 1 E Willet 29 1630EST 0 0 0.00K 0.00K Hail (1.00)

Oneida County Verona 29 1630EST 1 0 0.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds blew a tree down, killing an elderly man. M87OU

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oneida County Vernon Center 29 1635EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Large tree was uprooted across Route 26. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Chenango County 1 NE Sherburne 29 1640EST 0 0 0.00K 0.00K Funnel Cloud

Cortland County 1 W Cortland 29 1645EST 0 0 0.50K 0.00K Hail (1.00)

Hail caused damage to a windshield. Oneida County 1 E New York Mills 29 1645EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Chenango County 1 NE Earlville 29 1655EST 0 0 0.00K 0.00K Hail (1.25)

Oneida County Whitesboro 29 1656EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oneida County 1 E New Hartford 29 1700EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Power lines were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Chenango County Mc Donough 29 1712EST 0 0 0.00K 0.00K Hail (1.25)

Hail ranged from 1 to 1.25 inches. Chenango County Mc Donough 29 1720EST 0 0 0.00K 0.00K Hail (1.75)

Chenango County 1 N East Pharsalia 29 1724EST 0 0 0.00K 0.00K Hail (1.00)

Chenango County 1 S Polkville 29 1730EST 0 0 0.00K 0.00K Hail (1.00)

381 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, Central Otsego County 1 NW Milford 29 1737EST 0 0 0.00K 0.00K Hail (1.00)

Otsego County 1 S Otego 29 1805EST 0 0 0.00K 0.00K Hail (1.00)

Otsego County 1 SW Otego 29 1813EST 0 0 0.00K 0.00K Hail (1.00)

Delaware County 1 WSW East Delhi 29 1936EST 2215EST 0 0 40.00K 0.00K Flash Flood

Flood waters were rushing down the hillsides and across much of Route 10 from Delhi to Bloomville.

Delaware County 1 W Fraser 29 1936EST 2215EST 0 0 80.00K 0.00K Flash Flood

Flooding occurred on many streams and creeks due to culverts plugged with debris in and around the Village of Delhi. Water was over much of Routes 28 and 10 with areas of road shoulders being washed out.

Delaware County 3 E North Franklin 29 2000EST 2215EST 0 0 20.00K 0.00K Flash Flood

Flooding of small streams and creeks occurred along Frank Slawson Road and Route 28 in the Town of Meredith.

Delaware County 2 S West Davenport 29 2000EST 2 ENE Meridale 2215EST 0 0 80.00K 0.00K Flash Flood

Widespread flooding occurred on small streams, creeks and roads in the Town of Meredith. Jackson Hill Rd., and Palmer Hill Rd. were the hardest hit areas with shoulder and culvert washouts.

Delaware County Lake Deleware 29 2130EST 2215EST 0 0 20.00K 0.00K Flash Flood

Flooding occurred over Bob Hall Road between Route 28 and Bovina Center.

A stalled frontal boundary across central New York created an unstable airmass and allowed severe thunderstorms to develop during the afternoon.

NEW YORK, Coastal Kings County 1 NW Coney Is 08 0800EST 0815EST 0 0 0.00K 0.00K Flash Flood

The Belt Parkway was impassable near exit 6 in Coney Island.

An occluded front associated with a cutoff low pressure system slowly advanced towards the area from the south. Thunderstorms training over the same area produced heavy rain that coincided with high tide, which resulted in flash flooding across parts of Southern Brooklyn. Queens County 1 SSE Springfield Gardens 09 1015EST 1045EST 0 0 0.00K 0.00K Flash Flood

In Laurelton, the Belt Pkwy. was closed in both directions with four vehicles stranded in 2-3 feet of water.

382 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, Coastal

As a cutoff low pressure system moved across the area, showers and thunderstorms produced heavy rain, which led to flash flooding in Queens. New York County 1 SW New York 11 1508EST 0 0 4.00K Thunderstorm Wind (61EG)

Windows were blown out at the Rector Place and Gateway Plaza. Numerous trees were knocked over. There was damage to the revolving door at The Solaire in River Terrace. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. New York County 2 SSW New York 11 1508EST 0 0 3.00K Thunderstorm Wind (65EG)

Numerous trees were reported down along South End Avenue, especially between Albany and Liberty Streets. Eight trees fell into Merchant's River House, damaging the outdoor seating area.

Scattered showers and thunderstorms congealed into a squall line ahead of an approaching cold front during the afternoon. Isolated severe thunderstorms were embedded within the line, mainly over the NYC Metro area. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Westchester County 1 NE Tarrytown 23 1239EST 1330EST 0 0 0.00K 0.00K Flash Flood

In Tarrytown, Rt. 9 was closed at McKeel Ave. from the road buckling due to flooding.

Rockland County 1 SE Nyack 23 1240EST 1252EST 0 0 0.00K 0.00K Flash Flood

In Nyack, rapidly flowing water on Main St. blocked the entire road.

Westchester County Hawthorne 23 1303EST Thornwood 1330EST 0 0 0.00K 0.00K Flash Flood

The Saw Mill River Pkwy. was closed between exits 26 and 29 in Pleasantville due to flooding.

Westchester County Hawthorne 23 1411EST 1 NW Valhalla 1441EST 0 0 0.00K 0.00K Flash Flood

The Taconic State Pkwy. was closed between Commerce St. and Stevens Ave. due to flooding in Valhalla.

Richmond County 1 E Annadale 23 1435EST 1505EST 0 0 0.00K 0.00K Flash Flood

A car was stranded in flood waters on Vespa Ave. near Arden Avenue.

Westchester County 1 N Hawthorne 23 1544EST 1600EST 0 0 0.00K 0.00K Flash Flood

The Saw Mill River Pkwy. was closed at Saw Mill River Rd. due to flooding.

Richmond County 1 WNW South Beach 23 1558EST 1 ESE Castleton Corners 1628EST 0 0 0.00K 0.00K Flash Flood

The westbound Staten Island Expressway was closed at Renwick Ave. due to flooding.

383 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, Coastal Westchester County 1 S Ardsley 23 2000EST 2030EST 0 0 0.00K 0.00K Flash Flood

Heavy rain caused flooding in a home on Bramble Brook Rd. in Ardsley.

Westchester County 2 NNE Tuckahoe 23 2040EST 1 NNE Hastings On Hudson 2110EST 0 0 0.00K 0.00K Flash Flood

The Bronx River Pkwy. southbound was closed between Tarrytown Rd. and Harney Rd. due to flooding.

A pre-frontal trough ahead of a cold front triggered numerous showers and thunderstorms. These storms produced heavy rain, which resulted in flash flooding across portions of The Lower Hudson Valley and New York City.

NEW YORK, East Albany County 1 WNW Delmar 21 1407EST 1409EST 0 0 Hail (0.88)

Nickel size hail was reported over Amateur Radio from a thunderstorm in Delmar.

Albany County 1 SE Albany 21 1415EST 1417EST 0 0 Hail (1.00)

A member of the public reported quarter size hail fell in the South End section of Albany.

Rensselaer County 1 NNE Clinton Park 21 1417EST 0 0 Hail (1.00)

Amateur radio reported quarter size hail fell in Rensselaer, which covered the ground.

Columbia County 1 S Stuyvesant Falls 21 1419EST 1421EST 0 0 Hail (1.00)

Amateur radio reported quarter size hail fell from a thunderstorm in Stuyvesant Falls.

Rensselaer County 1 E Clinton Hgts 21 1420EST 1422EST 0 0 Hail (1.00)

A member of the public reported via Facebook that quarter size hail fell from a thunderstorm in Hampton Manner.

Rensselaer County 1 E Sherwood Park 21 1423EST 1425EST 0 0 Hail (1.00)

A Skywarn spotter reported quarter size hail fell from a thunderstorm in East Greenbush.

Columbia County Kinderhook 21 1425EST 1429EST 0 0 Hail (2.00)

Several spotters reported hail ranging from one to two inches in diameter fell in Kinderhook.

384 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, East Columbia County 1 N Ghent 21 1428EST 1442EST 0 0 Hail (2.50)

Amateur radio, trained spotters and members of the public reported hail of 1.00 to 2.50 inches in diameter fell from a thunderstorm in Ghent. Columbia County 1 SSE Valatie 21 1430EST 1432EST 0 0 Hail (2.00)

A member of the public reported hail of 2.00 inches in diameter fell from a thunderstorm in Valatie.

Rensselaer County 1 SW Eastmor 21 1430EST 1432EST 0 0 Hail (1.00)

A trained spotter reported quarter size hail fell from a thunderstorm one mile east of North Greenbush.

Columbia County 1 NNE Chatham 21 1439EST 1442EST 0 0 Hail (1.25)

A spotter reported half dollar size hail fell from a thunderstorm in Chatham.

Rensselaer County 1 SE West Sand Lake 21 1442EST 1444EST 0 0 Hail (0.75)

A member of the public reported penny size hail fell from a thunderstorm in West Sand Lake.

Columbia County 1 N Taghkanic 21 1545EST 1554EST 0 0 Hail (1.00)

A trained spotter reported quarter size hail from a thunderstorm in Taghkanic.

Columbia County 2 SE Ghent 21 1545EST 0 0 Thunderstorm Wind (50EG)

Multiple trees were reported down from thunderstorm winds in Ghent.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Herkimer County 1 SSW Mohawk 21 1555EST 1600EST 0 0 Hail (1.00)

The public via Facebook reported quarter size hail from a thunderstorm in Mohawk.

Herkimer County 1 WSW East Herkimer 21 1556EST 1600EST 0 0 Hail (1.00)

A U.S. Postal Employee reported quarter size hail from a thunderstorm in Herkimer.

Columbia County 2 N Pumpkin Hollow 21 1600EST 0 0 Thunderstorm Wind (60EG)

A member of the public reported damage to trees as a result of thunderstorm winds. Many large limbs and branches were down, including limbs of 50 foot tall trees. Note: The estimated wind gust of 60 knots is equivalent to 69 mph.

385 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, East Herkimer County 1 ENE Fairfield 21 1615EST 1625EST 0 0 Hail (1.00)

A trained spotter reported quarter size hail from a thunderstorm in Fairfield.

Herkimer County 1 N Goodell Corners 21 1615EST 1625EST 0 0 Hail (1.50)

A trained spotter reported half dollar to ping pong ball size hail from a thunderstorm two miles southeast of Fairfield.

Columbia County Copake 21 1615EST 0 0 Thunderstorm Wind (50EG)

Trees and multiple power lines were reported down on Main Street (Route 7A) due to thunderstorm winds in Copake.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Herkimer County 1 E Bolgeville 21 1620EST 1622EST 0 0 Hail (0.75)

A trained spotter reported penny size hail from a thunderstorm covering a road in Dolgeville.

Columbia County Ancram 21 1725EST 1730EST 0 0 Hail (1.75)

A trained spotter reported ping pong ball to golf ball size hail in Ancramdale.

Herkimer County Frankfort Hill 21 1900EST 0 0 Thunderstorm Wind (50EG)

Multiple trees were reported down due to thunderstorm winds at Frankfort Hill.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Herkimer County Frankfort Center 21 1903EST 0 0 Thunderstorm Wind (50EG)

Two trees were reported down and across Center Road due to thunderstorm winds in Frankfort Center.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Herkimer County 1 S East Schuyler 21 1905EST 0 0 Thunderstorm Wind (50EG)

Trees and wires were reported down due to thunderstorm winds in Frankfort.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Hamilton County 1 SE Higgins Bay 21 1911EST 1914EST 0 0 Hail (1.50)

A local media weather spotter reported ping pong ball size hail from a thunderstorm in Piseco.

Herkimer County 1 E Bolgeville 21 1930EST 0 0 Thunderstorm Wind (50EG)

Numerous trees and wires were reported down due to thunderstorm winds in Dolgeville.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

386 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, East Hamilton County 1 SE Wells 21 1935EST 1938EST 0 0 Hail (1.50)

Local media reported ping pong ball size hail from a thunderstorm in Wells.

Fulton County 1 E Oppenheim 21 1935EST 0 0 Thunderstorm Wind (50EG)

Trees and wires were reported down from thunderstorm winds in Oppenheim.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Fulton County Gloversville 21 1950EST 0 0 Thunderstorm Wind (50EG)

A tree was reported down and on a house due to thunderstorm winds in Gloversville.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Saratoga County 2 SW Mosherville 21 2008EST 0 0 Thunderstorm Wind (50EG)

Trees were reported down due to thunderstorm winds at the intersection of Route 147 and Route 29 in Kimball Corners.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Saratoga County Parkis Mills 21 2010EST 0 0 Thunderstorm Wind (50EG)

A tree was reported down and on wires due to thunderstorm winds on Parkis Hills Road at Graves Road in Galway.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Montgomery County 1 NW Amsterdam 21 2015EST 0 0 Thunderstorm Wind (50EG)

A tree was down and on a residence as a result of thunderstorm winds in Amsterdam.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Saratoga County Galway 21 2020EST 2022EST 0 0 Hail (1.00)

A meteorologist reported quarter size hail from a thunderstorm in Galway.

Saratoga County 1 SE Saratoga Spgs 21 2035EST 2036EST 0 0 Hail (0.75)

A member of the public reported penny size hail from a thunderstorm in Saratoga Springs.

Rensselaer County 2 SSW Hoosick 21 2055EST 0 0 Thunderstorm Wind (50EG)

A tree was reported down due to thunderstorm winds on Route 7 in Hoosick Falls.

A very warm and humid air mass was in place across eastern New York on Tuesday, May 21st. A slow moving frontal boundary was situated just north of the area across the Saint Lawrence River Valley along the United States-Canadian border. During the day, a wave of low pressure moved along this boundary, allowing the boundary to slowly push southward towards the area. With strong wind shear aloft and plenty of low level moisture in place, thunderstorms developed during the early afternoon hours. Thunderstorms initially formed as single cells and supercells, but eventually organized into several broken lines, which moved from west to east across the area. Many of these storms produced wind damage to trees and power lines. In addition, some thunderstorms produced hail, with hailstones as large as 2.50 inches in diameter across Columbia County.

387 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, East

As the surface wave of low pressure moved away and with the loss of daytime heating, thunderstorms eventually ended during the late evening hours. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

Schoharie County 1 SSW Warnerville 22 1300EST 0 0 Thunderstorm Wind (60EG)

Several trees were reported down and shingles were blown off a roof due to thunderstorm winds in Warnerville.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Schenectady County 1 NE Quaker Street 22 1305EST 0 0 Thunderstorm Wind (60EG)

A tractor trailer was reportedly blown over due to thunderstorms winds on Interstate 88 near Delanson.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Montgomery County 1 NNE Charleston 22 1328EST 0 0 Thunderstorm Wind (50EG)

A tree and power lines were reportedly down and across a road due to thunderstorm winds in Charleston.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Schenectady County 1 SE Scotia 22 1345EST 0 0 Thunderstorm Wind (50EG)

Multiple trees were reported down due to thunderstorm winds in Scotia.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Schenectady County 3 SSE Rotterdam 22 1350EST 1600EST 0 0 Heavy Rain

A trained spotter reported water flowing across parking lots and under cars two to three inches deep in Rotterdam.

Montgomery County 1 NNE Scotch Bush 22 1355EST 1600EST 0 0 100.00K 0.00K Flash Flood

Local television media reported flash flooding on Sulphur Springs Road in Florida due to heavy rainfall from showers and thunderstorms. The flash flooding caused significant damage to a home. One and a half feet of water swept through the home.

Schenectady County 1 ENE Schenectady 22 1358EST 1600EST 0 0 0.00K 0.00K Flash Flood

The public via Facebook reported flash flooding along Hampton Avenue in Schenectady from heavy rainfall from showers and thunderstorms. Schenectady County 2 SW Schenectady 22 1400EST 2 NW Carman 1600EST 0 0 0.00K 0.00K Flash Flood

A meteorologist reported flash flooding along Crane Street in Schenectady. Water was two to three feet deep and water rescues were needed to remove people from the flooding. Schenectady County 1 NNE Schenectady 22 1400EST 1600EST 0 0 0.00K 0.00K Flash Flood

A trained spotter reported flash flooding at the intersection of Brandywine Avenue and Union Street in Schenectady from showers and thunderstorms.

388 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, East Rensselaer County Schaghticoke 22 1417EST 0 0 Thunderstorm Wind (50EG)

Wires were reported down due to thunderstorm winds in Schaghticoke.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Saratoga County 1 NW Rexford 22 1419EST 1600EST 0 0 0.00K 0.00K Flash Flood

Law Enforecement reported flash flooding along Riverview Road in Rexford from showers and thunderstorms.

Rensselaer County 1 NE Pittstown 22 1420EST 0 0 Thunderstorm Wind (50EG)

A tree was reported down and on a car due to thunderstorm winds in Pittstown.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Rensselaer County 1 NNE Poestenkill 22 1429EST 0 0 Thunderstorm Wind (50EG)

Wires were reported down due to thunderstorm winds in Poestenkill.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Saratoga County Mechanicville 22 1430EST 1600EST 0 0 0.00K 0.00K Flash Flood

Flash flooded was reported on Main Street in Mechanicville due to showers and thunderstorms. As a result of the flooding, Main Street was temporarily closed. Rensselaer County 1 NE Sand Lake 22 1430EST 0 0 Thunderstorm Wind (50EG)

Trees and wires were reported down due to thunderstorm winds in Sand Lake.

As a frontal boundary moved into the region, some areas received heavy rainfall from thunderstorms during the day of Tuesday, May 21st and into the early morning hours on May 22nd. This frontal boundary become stationary across the region for Wednesday, May 22nd. In addition, it was quite warm and humid across much of eastern New York. As an upper level disturbance moved across upstate New York, additional rounds of showers and thunderstorms developed during the afternoon on May 22nd. With the ground saturated from recent rainfall and streams already high, northern portions of the Capital Region experienced flash flooding. Some roads were closed and water rescues had to take place. In addition, some of the thunderstorms became strong enough to produce gusty winds, which caused damage to trees and power lines. Thunderstorm activity diminished by evening as the upper level disturbance moved away from the area and water levels slowly receded. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

Herkimer County 1 ENE Fairfield 29 1645EST 1647EST 0 0 Hail (1.00)

A trained spotter reported nickel to quarter size hail from a thunderstorm covering the ground in Fairfield.

Herkimer County 2 NNW Manheim Center 29 1650EST 0 0 Thunderstorm Wind (50EG)

A trained spotter reported wires down as a result of thunderstorm winds near Manheim Center.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

389 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, East Herkimer County 1 E Bolgeville 29 1655EST 0 0 Thunderstorm Wind (50EG)

A trained spotter reported trees down and across a road in Dolgeville as a result of thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Herkimer County 1 W Harbor 29 1702EST 0 0 Thunderstorm Wind (50EG)

A trained spotter reported trees and wires down on Argyle Road in Frankfort Center due to thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Herkimer County Frankfort 29 1707EST 0 0 Thunderstorm Wind (50EG)

A trained spotter reported wires down on 5th Ave at Reese Road in Frankfort due to thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Herkimer County Ilion 29 1708EST 0 0 Thunderstorm Wind (50EG)

A trained spotter reported a tree down and on a house as result of thunderstorm winds in Ilion.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Herkimer County 2 N Manheim Center 29 1712EST 2000EST 0 0 0.00K 0.00K Flash Flood

A trained spotter reported heavy rainfall led to flash flooding along Route 167 and Snells Bush Road. The roads were temporarily closed due to the flooding. Herkimer County 1 NW East Herkimer 29 1720EST 2000EST 0 0 0.00K 0.00K Flash Flood

As a result of thunderstorm heavy rains, emergency management in Herkimer County reported a mudslide occurred on Route 28 between Herkimer and Middleville. The route needed to be temporarily closed.

Herkimer County Bolgeville 29 1730EST 2000EST 0 0 0.00K 0.00K Flash Flood

A trained spotter reported heavy rainfall led to flash flooding in Dolgeville. Multiple culverts were washed out and there was 4 to 5 inches of water running across Main Street. Montgomery County Minaville 29 1735EST 0 0 Thunderstorm Wind (50EG)

A member of the public reported a tree downed by thunderstorm winds was blocking Langley Road in Minaville.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Montgomery County Scotch Bush 29 1747EST 1748EST 0.58 500 0 0 Tornado (EF1)

390 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, East

A National Weather Service storm survey determine that a tornado touched down in near Bernaski Road in Scotch Bush in the town of Florida. The tornado was only on the ground in Montgomery County for just under one mile before it crossed into Schenectady County border while traveling east. The tornado caused damage to a home along Bernaski Road, with half of the roof blown off. Grass was lifted and splattered on three sides of the home. Many windows were also blown out of the house. Nearby, a hundred year old barn was destroyed. A flagpole was ripped out of the ground. Trees were uprooted and/or split in half as well. Residents recalled seeing a funnel before taking cover.

Schenectady County 2 WNW Mariaville 29 1748EST 2 W Schenectady 1804EST 12.22 1760 0 1 Tornado (EF2)

A National Weather Service storm survey determined that a tornado tracked from the Montgomery County border through the towns of Duanesburg, Princetown, Rotterdam and into the city of Schenectady. The tornado entered the county as an EF1 and strengthened to EF2 strength when reaching the hamlet of Mariaville Lake in the town of Duanesburg. Many trees were splintered in half or uprooted. Several barns and a shed were destroyed or heavily damaged. One barn was impaled by pieces of debris. An ATV vehicle was moved 100 feet by the force of the wind and an RV was blown over. Homes had damaged to roofs and windows were blown out of cars as well. One person was inside a barn at the time the tornado hit. He was picked up into the air by the tornado and injured by flying debris, suffering lacerations to his head and back. Further east along the path, the tornado toppled or heavily damaged high tension power line towers that were 90 to 120 feet tall. The tornado weakened as it moved eastward into Rotterdam, but continued to cause significant damage to trees. The tornado crossed Interstate 90 (New York State Thruway) and weakened to EF0 strength as it passed close to the Rotterdam Square Mall. The tornado then entered the city of Schenectady and lifted around the vicinity of Hillhurst Park in the Bellevue section of Schenectady.

Schoharie County 1 E Schoharie 29 1750EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees and wires were reported down in Schoharie due to thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Schoharie County 1 W Jefferson 29 1757EST 0 0 Thunderstorm Wind (50EG)

Trees and wires were reported down due to thunderstorm winds in Jefferson.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Schoharie County 3 NNE Jefferson 29 1757EST 1802EST 1.57 200 0 0 0.00K 0.00K Tornado (EF1)

A National Weather Service storm survey determined that a tornado touched down along the side of a mountain ridge. Dozens of softwood and hardwood trees were sheared off or toppled in different directions. The tornado was an on the ground for nearly 1.6 miles, but due to the rural and mountainous location, only did damage to trees.

Schenectady County 2 W Carman 29 1803EST 0 0 Thunderstorm Wind (50EG)

A trained spotter reported a tree down on Vanwormer Road in Rotterdam due to thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Schenectady County Schenectady 29 1804EST 2 SW Hawthorne Hill 1805EST 0 0 Thunderstorm Wind (60EG)

391 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, East

A member of the public reported through Twitter that thunderstorm winds toppled a large tree in Schenectady on State Street. A National Weather Service employee found additional wind damage along Balltown Road near Consaul Road as well.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Schenectady County 1 ENE Carman 29 1805EST 0 0 Thunderstorm Wind (50EG)

A trained spotter reported a tree was downed due to thunderstorm winds on Willow Creek Road in Schenectady.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Schenectady County 1 W Niskayuna 29 1805EST 0 0 Thunderstorm Wind (60EG)

A member of the public reported a 40 foot tree down on Pinecrest Drive in Niskayuna as a result of thunderstorm winds.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Schenectady County 1 SSE Niskayuna 29 1806EST 0 0 Thunderstorm Wind (60EG)

Multiple trees were reported down on Vly Road in Niskayuna as a result of thunderstorm winds.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Schenectady County Scotia 29 1807EST 2000EST 0 0 Heavy Rain

Local fire department officials reported heavy rainfall from thunderstorms led to significant runoff of water and dirt onto roads in Scotia. Albany County 1 ESE Maywood 29 1807EST 0 0 Thunderstorm Wind (60EG)

Two trees were reported down due to thunderstorm winds in Colonie.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Albany County 1 ENE Hartmans Corners 29 1809EST 0 0 Thunderstorm Wind (50EG)

A large tree was reported to be knocked down due to thunderstorm winds on Willow Street in Guilderland.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Albany County 1 NW Shakers 29 1810EST 0 0 Thunderstorm Wind (60EG)

A member of public reported a large tree fell on a house as a result of thunderstorm winds in Colonie.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Saratoga County 1 SSE Vischer Ferry 29 1810EST 1811EST 0.75 200 0 0 Tornado (EF1)

A National Weather Service storm survey determined that an EF1 tornado touched down in Vischer Ferry. The tornado tore the roof off a well-built shed near the intersection of Riverview Road and Willow Springs Drive. In addition, the tornado blew out windows of a home, shifted a barn off its foundation and damaged approximately 100 trees. The tornado was on the ground just shy of one mile before lifting. The same supercell thunderstorm responsible for producing this tornado also produced another tornado further west across Montgomery and Schencetady counties.

392 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, East Albany County Latham 29 1814EST 0 0 Thunderstorm Wind (60EG)

Multiple trees were reported down in Latham due to thunderstorm winds, including one blocking Park Avenue.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Albany County 1 SSE Boght Corners 29 1815EST 1816EST 0 0 Thunderstorm Wind (50EG)

Multiple large trees were reported knocked down or uprooted due to thunderstorms winds in a stretch along Route 9R between Cora Drive and St. Agnes Highway in Cohoes. One of the trees fell on a home. Many large branches were down along the roadway. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Albany County Glenmont 29 1815EST 0 0 Thunderstorm Wind (52MG)

A weather spotter for a local television station reported a measured wind gust of 60 mph in Glenmont.

Note: The measured wind gust of 52 knots is equivalent to 60 mph. Saratoga County 1 ESE Clifton Park Center 29 1820EST 0 0 Thunderstorm Wind (52EG)

A National Weather Service employee estimated a thunderstorm wind gust to 60 mph in Clifton Park.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Rensselaer County 1 W Sycaway 29 1825EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

The roof to a residence hall at Rensselear Polytechnic Institute in Troy was reported to be damaged due to thunderstorm winds. Trees and power lines in Troy were also reported to be down as a result of thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Rensselaer County Cropseyville 29 1830EST 0 0 Thunderstorm Wind (60EG)

Numerous trees were reported down due to thunderstorm winds in Brunswick.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Rensselaer County 1 SE Raymertown 29 1830EST 0 0 Thunderstorm Wind (50EG)

Multiple trees were reported down and on house as result of thunderstorm winds in Raymertown.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Saratoga County 1 WNW Halfmoon 29 1840EST 1 NNE Grays Corners 2010EST 0 0 0.00K 0.00K Flash Flood

A trained spotter reported that an inch and a half of rain from a thunderstorm fell in 20 minutes, resulting in localized flash flooding in Halfmoon. Columbia County Hudson 29 1905EST 0 0 Thunderstorm Wind (60EG)

Multiple trees were reported down in the city of Hudson as a result of thunderstorm winds. In addition, the steeple of a church built in 1869 also collapsed as a result of thunderstorm winds.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph.

393 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, East Columbia County Lorenz Park 29 1910EST 0 0 Thunderstorm Wind (60EG)

Multiple trees were reported down as a result of thunderstorm winds in Greenport Center.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Rensselaer County 1 ESE Raymertown 29 1920EST 2010EST 0 0 0.00K 0.00K Flash Flood

Multiple roads were reported to be washed out in Raymertown due to flash flooding.

Rensselaer County 1 NE Pittstown 29 1925EST 2010EST 0 0 0.00K 0.00K Flash Flood

Multiple roads were reported to be washed out in Pittstown due to flash flooding.

Dutchess County 1 ESE Hammertown 29 1952EST 0 0 Thunderstorm Wind (50EG)

Multiple trees were reported down in Pine Plains due to thunderstorm winds. One large tree fell across Carpenter Hill Road near Route 82. During the day on May 29th, a warm front lifted northward across eastern New York. Although the day began cloudy, some breaks of sun started to occur by early afternoon. At the same time, a potent upper level disturbance over Ontario started to approach the region and a strong jet streak was located just to the north. With a moist southerly flow moving into the region at the surface, it became rather humid as well. With all these ingredients coming together, thunderstorms developed across western and central New York by mid afternoon and they began to spread eastward into eastern New York by the late afternoon and evening hours. Many of the thunderstorms organized into a strong squall line, producing widespread wind damage, especially across northern portions of the Capital Region and in the mid-Hudson Valley. These thunderstorms produced a significant amount of lightning, as well, which in combination with the widespread wind damage, led to a significant number of power outages across the area. Many schools in the Capital Region were delayed or closed on Thursday, May 30th as a result of the power outages. In addition, a few supercell thunderstorms developed ahead of the line. Three tornadoes were spawned by these supercell storms across the Capital Region and Schoharie County. The strongest tornado was rated EF2 by a National Weather Service storm survey, and tracked on the ground for 13 miles across eastern Montgomery and Schenectady Counties. One injury occurred as a result of this tornado, as a man was pulled out of a barn by the force of the wind. Significant damage to trees occurred, along with damage to high tension power line towers and roofs blown off houses. The other tornadoes were rated EF1, were rather short-lived and mainly caused damage to trees. With the region already rather saturated from repeated thunderstorms over the past week, the additional heavy rainfall that occurred caused flash flooding in some areas. This caused roads to be closed due to being impassable by flowing water. Thunderstorms pushed east of the area by around midnight, ending the threat of severe weather. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

NEW YORK, North St. Lawrence County Canton 21 1730EST 0 0 20.00K 0.00K Thunderstorm Wind (55EG)

Trees and wires down throughout portions of Canton, including along County Route 21 and a telephone pole down across Pink Schoolhouse road. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Franklin County 1 N Paul Smiths 21 1825EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Trees down on powerlines across sections of Paul Smiths. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

394 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, North Essex County Lake Placid 21 1837EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

A few trees down on power lines in Lake Placid. On the afternoon and evening of May 21st, a stationary boundary was draped across northern New York. There was enough low-level instability, as well as disturbances along this boundary to produce thunderstorms during the evening hours...some of which produced scattered wind damage. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

Essex County Lake Placid 22 1307EST 0 0 0.00K 0.00K Hail (1.00)

Several reports of quarter-size hail along the northern portions of Lake Placid.

Clinton County 2 SE Ingraham 22 1430EST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail reported. St. Lawrence County 1 N Morristown 22 2130EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Several trees and power lines down in Morristown. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. St. Lawrence County Canton 22 2145EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Scattered trees and power lines down across sections of Canton.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. St. Lawrence County Norfolk 22 2200EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

A few trees and power lines down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. St. Lawrence County Potsdam 22 2206EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Several power lines and tree branches down across Potsdam. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. St. Lawrence County 1 N Colton 22 2215EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Several reports of power lines down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. St. Lawrence County Lisbon 22 2242EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Scattered trees and power lines down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Franklin County 2 NW Chateaugay 22 2300EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

A few trees down in Chateguay, including Chasm road. On the afternoon and evening of May 22nd, a stationary boundary remained draped across northern New York. There was enough low-level instability, as well as disturbances along this boundary to produce isolated thunderstorms during the evening hours in the Champlain Valley that produced large hail and scattered thunderstorms toward the overnight in St. Lawrence county that produced scattered wind damage. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

395 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, North Essex County Ausable Forks 25 1000EST 1100EST 0 0 0.00K 0.00K Flood

Runoff from heavy rainfall caused minor flooding along the East Branch of the Ausable near Ausable Forks NY. The river crested at its flood stage of 7.0 feet at 10:15 am EST on May 25 2013.

An area of low pressure developed on a stalled surface front in southern New England on May 24, and developed into a coastal storm that lasted through May 26. Widespread steady rainfall of one to two inches produced minor flood problems, especially for areas that flooded on May 23. Heavy wet snow fell at elevations above 1200 to 1500 feet, and the combination of snow load and winds of 25 to 35 mph caused power outages. The low pressure moved out of the area on May 26.

NEW YORK, West Allegany County 1 N Rushford 10 1515EST 0 0 10.00K 5.00K Hail (1.00)

Cattaraugus County 1 S Conewango 10 1530EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Law enforcement reported trees down by thunderstorm winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Chautauqua County 1 N Hartfield 10 1545EST 0 0 0.00K 0.00K Funnel Cloud

Chautauqua County 1 W Westfield 10 1604EST 0 0 5.00K 10.00K Hail (1.00)

Livingston County 1 E Springwater 10 1639EST 0 0 5.00K 10.00K Hail (1.00)

Cattaraugus County Olean 10 1710EST 0 0 10.00K 5.00K Hail (1.25)

Cattaraugus County 1 SSE Randolph 10 1715EST 0 0 5.00K 10.00K Hail (1.00)

Cattaraugus County 1 NW Portville 10 1845EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

The Fire Department reported trees down by thunderstorm winds.

Thunderstorms developed ahead of and accompanied a cold front crossing the area. Thunderstorm winds downed trees near Conewango and in Portville, both in Cattaraugus County. The thunderstorms produced hail measured up to 1.25 inch in diameter in Rushford, Westfield, Springwater, Olean and Randolph. Just north of Hartfield, a funnel cloud developed however it did no damage and never reached the ground. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

NYZ014-019-085 Chautauqua - Ontario - Southern Erie 13 2100EST 14 0600EST 0 0 0.00K Frost/Freeze

NYZ001>006-010> Genesee - Livingston - Monroe - Niagara - Northern Cayuga - Northern Erie - Orleans - Oswego - Wayne 011-013 14 0030EST 0400EST 0 0 0.00K Frost/Freeze

High pressure brought light winds and clear skies to the regionideal conditions for radiational cooling. Temperatures fell to freezing and below by daybreak. Overnight lows recorded included 27 degrees at Sherman, 29 degrees at Walworth, Montezuma and Fulton, 30 degrees at Pendleton, Albion, Brockport, and Akron, 31 degrees at Retsof and Bristol, and 32 degrees at Colden. Early tender vegetation was affected.

396 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, West Orleans County 1 SE Holley 15 0754EST 0 0 Hail (1.00)

Monroe County 1 E Churchville 15 0810EST 0 0 Hail (0.75)

An isolated thunderstorm moved on-shore from Lake Ontario and crossed Orleans and Monroe counties. The thunderstorm produced hail which reached one inch in diameter near Albion. At peak, the hail covered the ground.

Jefferson County 1 NE Pierrepont Manor 21 0030EST 0 0 10.00K 0.00K Hail (1.00)

Jefferson County 1 NE Pierrepont Manor 21 0030EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported wires and trees downed by thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Jefferson County 1 SW Watertown 21 0050EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Law enforcement reported a power pole downed by thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lewis County 1 E Lyons Falls 21 0120EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorms moved across the North Country during the overnight hours. The thunderstorm winds downed trees and wires and produced one-inch diameter hail. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Ontario County 1 N Ennerdale 21 1138EST 0 0 Hail (0.75)

Ontario County Manchester Center 21 1139EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

A postal carrier reported trees downed by thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Ontario County 1 N Seneca Castle 21 1145EST 0 0 5.00K 10.00K Hail (2.00)

Ontario County 1 N Stanley 21 1145EST 0 0 5.00K 10.00K Hail (1.75)

Ontario County Geneva 21 1200EST 0 0 5.00K 10.00K Hail (1.75)

Wayne County 1 SW Mud Mills 21 1410EST 0 0 Hail (0.88)

Wayne County 1 NW Mud Mills 21 1417EST 0 0 5.00K 8.00K Hail (1.00)

397 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, West Wayne County 1 NE Walworth 21 1436EST 0 0 5.00K 10.00K Hail (1.00)

Wayne County 3 ESE Marion 21 1445EST 0 0 Hail (0.88)

Monroe County 2 NNW Clarkson 21 1458EST 0 0 5.00K 5.00K Hail (1.75)

Monroe County Hilton Ponderosa Arp 21 1503EST 0 0 5.00K 5.00K Hail (1.00)

Monroe County 1 NNE Parma Center 21 1507EST 0 0 5.00K 0.00K Hail (1.50)

Monroe County 1 SSE Hilton 21 1507EST 0 0 5.00K 0.00K Hail (1.00)

Livingston County 1 SW Lakeville 21 1555EST 0 0 5.00K 0.00K Hail (1.75)

Ontario County 1 SSW Bilsboro 21 1645EST 0 0 15.00K 0.00K Hail (1.75)

Ontario County 1 SSW Bilsboro 21 1645EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Reports of trees and power poles down were posted on Facebook.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Ontario County 2 SW Bilsboro 21 1647EST 0 0 5.00K 0.00K Hail (1.00)

Cayuga County 1 SE North Victory 21 1651EST 0 0 Hail (0.75)

Oswego County 2 NNW Fulton 21 1705EST 0 0 Hail (0.75)

Jefferson County 1 S Sackets Harbor 21 1710EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Law enforcement reported trees downed by thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Jefferson County 3 NNE Herrings 21 1722EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Law enforcement reported trees downed by thunderstorm winds.

Thunderstorms developed along various boundaries within a warm and moist air mass over the region. Storms first developed across the Finger Lakes midday along the Lake Ontario lake breeze and then in the mid afternoon along the Lake Erie lake breeze boundary as it pushed inland across the Southern Tier. The strongest storms produced one to two inch hailstones. Specific hail reports were received from Stanley, Geneva, Newark, Walworth, Marion, and Brockport. In several of those locations, automobiles were damage by the hail stones. Later in the afternoon thunderstorms rolled across the North Country with downed trees and power poles reported. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

398 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, West Wayne County 1 NNE Cumminsville 22 1418EST 0 0 5.00K 0.00K Hail (1.00)

Wayne County 1 SW North Wolcott 22 1428EST 0 0 5.00K 0.00K Hail (1.00)

Wayne County 1 E Red Creek 22 1436EST 0 0 8.00K 0.00K Hail (1.75)

Cayuga County 1 SE North Victory 22 1444EST 0 0 Hail (0.88)

Cayuga County 1 S North Victory 22 1446EST 0 0 5.00K 0.00K Hail (1.00)

Cayuga County 1 S North Victory 22 1446EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds broke trees limbs and flipped heavy, wooden furniture.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cayuga County 1 SE North Victory 22 1452EST 0 0 5.00K 0.00K Hail (1.00)

Oswego County 1 SE Cains Corner 22 1500EST 0 0 Hail (0.75)

Cayuga County 1 E Ira 22 1500EST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)

Law enforcent reported trees and wires down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oswego County 1 SW Hinmansville 22 1521EST 0 0 Hail (0.75)

Oswego County 1 NE Hinmansville 22 1523EST 0 0 5.00K 0.00K Hail (1.00)

Oswego County Phoenix 22 1530EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Photos of downed trees were posted on Social Media. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oswego County 2 SE Central Square 22 1543EST 0 0 Hail (0.88)

Cayuga County 1 SE North Victory 22 1707EST 0 0 Hail (0.88)

Oswego County Fulton 22 1735EST 0 0 Hail (0.75)

Allegany County Wellsville 22 1738EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

The television media reported trees downed by thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

399 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, West Oswego County 2 E Suttons Corners 22 1740EST 0 0 Hail (0.88)

Oswego County 1 NE Central Square 22 1800EST 0 0 Hail (0.75)

Oswego County Mallory 22 1807EST 0 0 5.00K 0.00K Hail (1.00)

Oswego County West Monroe 22 1815EST 0 0 5.00K 0.00K Hail (1.50)

Oswego County 1 S Hastings 22 1815EST 0 0 10.00K Hail (1.25)

Oswego County 2 WSW Panther Lake 22 1819EST 0 0 5.00K 0.00K Hail (1.00)

Genesee County 2 E Batavia Genesee Arpt 22 1907EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Emergency Management reported trees down by thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Jefferson County 1 S Adams Center 22 2118EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Law enforcement reported trees down by thunderstorm winds at the intersection of Fuller and Caird Rds.

With a warm and moist airmass in place over the region, thunderstorms developed along lake breezes during the afternoon and evening. The persistent storms were prolific hail producersnot only in size but quantity. At times it was reported the hail completely covered the ground. The largest stones approached two inches, however most of the hail exceeded one-inch in diameter. Hail was reported near Lake Bluff, Port Bay, Red Creek, Victory, Martville, West Monroe and Hastings, to name a few. While most of the severe reports were of large hail, a few storms did produce damaging winds with trees and wires reported down near Ira, Victory, Phoenix, Wellsville, Adams Center and Batavia. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Allegany County 1 E Little Genesee 23 1550EST 0 0 5.00K 10.00K Hail (1.50)

Allegany County 2 ENE Little Genesee 23 1552EST 0 0 20.00K 0.00K Thunderstorm Wind (50EG)

Law enforcment reported thunderstorm winds downed trees and tree limbs.

An isolated severe thunderstorm developed ahead of an approaching cold front. Initially over northwest Pennsylvania, the storm intensified as it moved north into Allegany County. The thunderstorm not only produced one-and-one-half in hail but damaging winds that downed trees and tree limbs. One was damaged when a tree fell on it. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

NYZ020-021 Allegany - Cattaraugus 25 0415EST 0600EST 0 0 0.00K Frost/Freeze

Canadian high pressure over the region brought clearing skies and light windsideal conditions for radiational cooling. Temperatures fell to freezing and below by daybreak. Overnight lows recorded included 31 degrees at Randolph and 32 degrees at Friendship.

NYZ019-021 Allegany - Chautauqua 26 0100EST 0615EST 0 0 0.00K Frost/Freeze

400 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, West

Canadian high pressure over the region brought clearing skies and light windsideal conditions for radiational cooling. Temperatures fell to freezing and below by daybreak. Overnight lows recorded included 29 degrees at Hinsdale, 30 degrees at Andover and 32 degrees at Jamestown.

NYZ008-019-020 Cattaraugus - Chautauqua - Lewis 27 0130EST 0530EST 0 0 0.00K Frost/Freeze

Canadian high pressure over the region brought clearing skies and light windsideal conditions for radiational cooling. Temperatures fell to freezing and below by daybreak. Overnight lows recorded included 28 degrees at Andover and 30 degrees at Sherman, Limestone, and Highmarket.

Chautauqua County 1 N Chautauqua 28 1950EST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)

Law enforcement reported trees down by thunderstorm winds at the Chautauqua Institution.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Chautauqua County 1 S Waterboro 28 2020EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

A spotter reported trees down on Dry Brook Road. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cattaraugus County 1 NW New Albion 28 2055EST 2230EST 0 0 15.00K 0.00K Flash Flood

Cattaraugus County 1 W East Randolph 28 2110EST 29 0030EST 0 0 15.00K 0.00K Flash Flood

Chautauqua County 2 SSE Jamestown Arpt 28 2110EST 29 0000EST 0 0 20.00K 0.00K Flash Flood

Showers and thunderstorms developed along and ahead of a warm front. A severe thunderstorm over Chautauqua County produced winds that downed trees and power lines at the Chautauqua Institute and just east of Kennedy. The thunderstorms also resulted in brief periods of very heavy rain in some locations with one to three inches of rain falling in less than three hours. Roads were flooded and washout out in parts of Jamestown, New Albion, and Randolph.

Cayuga County 1 SE North Victory 29 1525EST 0 0 Hail (0.75)

Cayuga County 1 N Port Byron 29 1540EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Law enforcement reported trees and power lines downed by thunderstorm winds.

A thunderstorm quickly developed in Wayne county along the Lake Ontario lake breeze and move east into Cayuga County. In Port Byron, thunderstorm winds downed trees and power lines. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. NORTH CAROLINA, Central Alamance County 4 S Mebane Hurdle Fld Ar 08 1840EST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail covering the ground. Shortwave energy rotating around an upper level low located over Virginia and the District of Columbia triggered scattered showers and thunderstorms across central North Carolina. An isolated severe storm produced quarter-sized hail in Alamance County.

401 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH CAROLINA, Central Anson County 1 SW Pinkston 21 0430EST 0630EST 0 0 0.00K 0.00K Flash Flood

North Carolina Highway 52 at Little Duncan Road, Highway 109 at Horton Road and Brown Creek Church Road were all impassable and closed due to high water. Heavy rainfall developed over the southern Piedmont and Sandhills region of North Carolina during the early morning hours of the 20th as a dampening mid-level trough moved over the southern Appalachians. An area of slow moving and back-building storms produced excessive rainfall of 3 to 4 inches near Wadesboro, in Anson County which resulted in several road closures.

Edgecombe County 1 W Rocky Mt 23 1600EST 1744EST 0 0 0.00K 0.00K Flash Flood

There were numerous reports of roads flooded in downtown Rocky Mount including Raleigh Boulevard, Franklin Street, Bassett Street, and Hammond Street. A Fedex truck was flooded to near the top of the truck on Cokey Road.

Heavy rainfall fell over portions of the coastal plain counties of North Carolina during the afternoon and early evening hours of the 23rd as a slow moving mid-level trough moved through the area. An area of slow moving and back-building storms produced excessive rainfall of 3 to 4 inches near Rocky Mount, which resulted in several road closures and one stranded motor vehicle.

NORTH CAROLINA, Central Coastal Carteret County 1 ENE Beaufort Moorehd Arp 06 2126EST 0 0 0.00K 0.00K Thunderstorm Wind (62MG)

Beaufort ASOS reported a peak gust of 71 mph in a thunderstorm.

Note: The measured wind gust of 62 knots is equivalent to 71 mph. Carteret County 1 NNW Beaufort 06 2137EST 0 0 0.00K 0.00K Hail (1.00)

Public reported one inch hail north of Beaufort. Carteret County 1 SSE Core Creek 06 2140EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Power lines blown down along Highway 101 near Tuttles Grove.

Low pressure over Tennessee produced a moist southerly flow over eastern North Carolina during the evening hours of May 6th. Weak instability led to a few thunderstorms developing near the coast, and one produced some severe weather across Carteret County. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Craven County 1 ESE Askin 11 1155EST 0 0 0.00K 0.00K Hail (0.88)

Nickle sized hail reported southeast of Askin. Hyde County 1 SE Ponzer 11 1255EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A tree was blown down across Riverside Campground Road just south of Ponzer.

Scattered thunderstorms developed over eastern North Carolina ahead a cold front during the afternoon of May 11th. A couple of the storms became strong to severe producing hail and damaging winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Craven County 1 E Vanceboro 23 1800EST 1830EST 0 0 0.00K 0.00K Flood

Very heavy rain across northern Craven county produced flooding in Vanceboro with Main Street closed for a period.

402 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH CAROLINA, Central Coastal

Scattered to numerous showers and thunderstorms crossed eastern North Carolina during the afternoon and evening hours of May 23rd as a cold front approached from the west. Locally heavy rain produced some flooding in Craven county.

NORTH CAROLINA, Northwest and North Central Watauga County 2 WNW Bowers Gap 05 1730EST 2030EST 0 0 0.00K 0.00K Flood

Heavy rain caused a portion of Beech Mountain Parkway and Laurel Creek Road to flood.

Watauga County 1 ENE Boone Blwng Rck Arpt 05 2200EST 06 0100EST 0 0 0.00K 0.00K Flood

Heavy rain caused a bridge on Bamboo Road to become flooded.

Ashe County Fig 05 2320EST 06 0220EST 0 0 0.00K 0.00K Flood

The New River was flowing over a bridge near the intersection of Ed Little Road and Highway 88W.

An upper level low pressure system was approaching the mid-Atlantic from the south-central United States. 40-knot southeasterly wind flow across the mid-Atlantic states resulted in a large amount of Atlantic moisture being for up the Blue Ridge Mountains. The strong orographic lift resulted in prolonged locally heavy rain in some areas of the North Carolina mountains, as well as reports of flooding.

Watauga County 1 SE Sherwood 06 0300EST 1 ENE Vilas 0600EST 0 0 0.00K 0.00K Flood

Portions of Charlie Thompson Road were closed due to flooding.

Watauga County 1 N Rominger 06 0400EST 0745EST 0 0 0.00K 0.00K Flood

Several roads were closed across the county due to widespread heavy rain and flooding. In one instance, portions of Watauga River Road were closed due to flooding of the Watuaga River. A motorist attempting to cross Deerfield Road was rescued by the Boone Fire Department. Rainfall at the Watauga Medical Center was measured at 4.53 inches.

Watauga County 1 SE Blowing Rock 06 0500EST 0 0 0.00K 0.00K Flash Flood A rock slide occurred on Highway 321 near the Green Park Inn.

Wilkes County 3 NW Hunting Creek 06 1600EST 0 0 0.00K 0.00K Hail (1.00)

Quarter-size hail was observed along Route 115. Wilkes County 1 SE Cricket 06 1602EST 0 0 0.00K 0.00K Hail (1.00)

Yadkin County 2 SW Hamptonville 06 1651EST 0 0 0.00K 0.00K Hail (1.00)

One inch hail was observed along Cranfill Road.

403 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH CAROLINA, Northwest and North Central Yadkin County 1 NNW Wagoner 06 1717EST 0 0 0.00K 0.00K Hail (1.00)

One inch hail was observed along Route 21. Surry County 2 W Low Gap 06 1826EST 1836EST 0 0 0.00K 0.00K Hail (1.00)

Stokes County 1 SSW Meadows 06 1940EST 0 0 0.00K 0.00K Hail (1.00)

A deep upper level low pressure system was pinwheeling across Tennessee, while high pressure was wedged against the eastern face of the Appalachians. Breaks in the cloud cover across northern North Carolina added to the surface-based instability, which allowed thunderstorms across the area to intensify to severe levels during the evening.

Watauga County 1 E Blowing Rock 21 1825EST 1835EST 0 0 0.00K 0.00K Hail (1.00)

Watauga County 1 SSE Foscoe 21 1845EST 0 0 0.00K 0.00K Hail (1.00)

The combination of an upper level disturbance passing over the region and daytime heating triggered spotty shower and thunderstorm activity across the mountains. A few storms became severe for a short while during the evening, and produced large hail. Ashe County Trout 22 1230EST 0 0 0.00K 0.00K Hail (1.00)

Wilkes County 1 S Abshers 22 1447EST 0 0 0.00K 0.00K Hail (1.00)

Alleghany County Roaring Gap 22 1500EST 0 0 0.00K 0.00K Hail (0.75)

Alleghany County 1 NW Roaring Gap 22 1510EST 0 0 0.00K 0.00K Hail (0.75)

Scattered strong to severe thunderstorms developed during the afternoon and evening due to strong instability associated with an approaching upper level trough and the associated cold front.

NORTH CAROLINA, Southwest Rutherford County 2 NNW Chimney Rock 05 0810EST 2 N Uree 06 0600EST 0 0 0.00K 0.00K Flood

Campgrounds were evacuated and high water was reported on several roads between Bat Cave and Lake Lure starting a little after 8 am on the 5th. Transylvania County 1 N Cherryfield 05 0925EST 2 NW Blantyre 06 1800EST 0 0 0.00K 0.00K Flood

Several inches of rain fell across Transylvania county, mainly on the 5th. Most of the resulting flooding occurred along the French Broad River or as a result of backwater effects of streams flowing into the river. Among the effects of the heavy rain, the Little River flooded parts of Cascade Lake Road north of Merrill Rd near Crab Creek. Hannah Ford Rd and Island Ford Rd were flooded by the French Broad River. Barclay Rd was flooded by the French Broad River 2 miles south of Brevard. Crab Creek Road was flooded by the French Broad River just southeast of Penrose. The French Broad at Blantyre rose above flood stage around 3 pm on the 5th, crested at 19.3 feet at 545 pm on the 6th, and fell below flood stage at 730 pm on the 8th.

404 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH CAROLINA, Southwest Henderson County 1 SSW Smyth 05 0930EST 1 W Fruitland 06 0630EST 0 0 0.00K 0.00K Flood

A long duration of moderate to heavy rain caused several creeks in central Henderson County to go into flood by the mid- morning hours of the 5th. Mud Creek flooded Balfour Road near the Hendersonville water treatment plant. Fruitland Road was flooded by Clear Creek near the intersection of Lancaster Road. Flooding was reported in many parts of Hendersonville as Mud Creek went above flood stage around 10 am. Flooded roads in town included South King Street, East Caswell Street and White Street. Old Airport Road was flooded by Cane Creek in Fletcher, though the flooding took several hours longer to develop in the northern part of the county.

Polk County Pea Ridge 05 1000EST 06 0400EST 0 0 0.00K 0.00K Flood

Most of the flooding with this duration rain event occurred as a result of rises along the Green River in the northeast part of the county. Several roads that cross or run near the Green River were flooded, including Ken Miller Road, John Watson Road and Abrams Moore Road. Roads within the Green River Highlands subdivision were flooded as well. An NWS employee who lives in the south-central part of the county measured 5.11 inches of rain for the event.

Henderson County 1 W Bat Cave 05 1500EST 0 0 0.00K 0.00K Debris Flow Both lanes of Chimney Rock Rd were blocked by a debris flow near the intersection of US Highway 74 in Bat Cave.

Henderson County 2 WNW Mills River 05 1500EST Brickton 06 1800EST 0 0 0.00K 0.00K Flood

Flooding developed on several roads in the Mills River Community by the mid-afternoon hours of the 5th. Flooded roads included Butler Bridge Road, Warlick Road, and Jeffress Road. Mills River also flooded North Mills River Rd by the late evening hours. Butler Bridge was flooded by the French Broad River, but may have been affected by a stream initially. Some roads in the north and west part of the county were flooded well into the next day and beyond as the French Broad River rose to a level of 19.29 feet by the afternoon hours of the 6th and only slowly receded thereafter.

Caldwell County 1 NNE Edgemont 05 1900EST 2 SW Mortimer 06 1000EST 0 0 30.00K 0.00K Flood

County officials reported that around 7 roads were affected by flood waters from the evening hours of the 5th through the late morning hours of the 6th. Areas that experienced flooding included Indian Grave Road where a low water crossing bridge was washed out. Johns River flooded Old Johns River Road in several areas. Edgemont road was flooded by Wilson Creek. Part of the embankment was washed out on Highway 90 near Collettsville, causing one line of the highway to buckle and slump.

Buncombe County 1 N Elk Mtn 05 2000EST 2 WNW Riceville 06 1900EST 0 0 10.00K 0.00K Flood

A mix of river and stream flooding affected the county after several inches of rain fell, mainly on the 5th. A few streams went out of their banks during the evening hours of the 5th. Charlotte Street was flooded by Flat Creak during this time. Starting during the early morning hours of the 6th, much of the French Broad and Swannanoa River systems went above flood stage. Several roads were affected around Asheville where the French Broad was above flood stage from 115 AM EDT on the 6th until 630 PM EDT that day. Flooded roads included Amboy Road, Swannanoa River Road, Riverside Drive from Craven Street to the I-26 on-ramp, Lyman Street and Azalea Road among others. Several rock and mud slides affected the county as well, particularly the south and east parts.

Burke County 2 N Joy 05 2000EST 3 SE Chesterfield 06 0700EST 0 0 30.00K 0.00K Flood

405 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH CAROLINA, Southwest

Numerous roads were flooded across the central and western part of the county after several inches of rain fell on the 5th and early on the 6th. A spotter on the southwest side of Morganton reported 7.15 inches of rain for the event. Several rock and mud slides were also reported. Flooding occurred initially along streams and then along the Johns River and the upper reaches of the Catawaba River. Some locations affected included Little Silver Creek was flooded Causby Road (1 SSE Glen Alpine). The Johns River flooded Johns River Road (7 NNW Morganton). Rose Creek flooded the Rose Creek Campground. A water rescue was reported at this location after a private bridge collapsed under a vehicle (6 NNW Morganton). Flooding was reported along Byrd Road (4 SW Morganton). Russell Creek was reported to be flooding Fish Hatchery Road about 10 miles northwest of Morganton. A swift water rescue was reported at the Optimist Campground (3 N Table Rock).

Rutherford County 1 SE Rock Spgs 05 2200EST 4 WNW Rutherfordton 06 1800EST 0 0 0.00K 0.00K Flood

Flooding developed along the upper reaches of the Broad River starting during the evening hours of the 5th, lasting through the afternoon hours of the 6th. Flooded roads included Thompson Lake Road and Coxe Road at Cleghorn Mill Road, among others.

Mcdowell County 3 N North Cove Crossing 05 2230EST 3 SSW Ashford 07 0600EST 0 0 250.00K 0.00K Flood

Widespread flooding occurred across the north and west part of the county after several inches of rain fell on the 5th and early on the 6th. Several roads were closed and several rock and mud slides were reported. Closed roads included Resistoflex Road near Old Greenlee Road, Old Linville Road flooded near American Thread Road and Old Cove School Flooded by the North Fork Catawba River, among several others. The worst hit area in the county was the western shore of Lake James. Rising waters flooded at least 10 RVs at the Moose Lodge Campground. Several structures at the site were also flooded. Boat docks were damaged by high water and debris at the campground and at Burnettes Landing. The water gradually receded starting on the 7th.

Buncombe County 6 NNE Shumon 05 2300EST 0 0 0.00K 0.00K Debris Flow A landslide covered Old Fort Road with 4 to 6 feet of debris near High Cliff Trail.

Mcdowell County 3 SSW Graphite 06 0000EST 0 0 0.00K 0.00K Debris Flow A landslide closed the westbound lanes of Interstate 40 along the Buncombe, McDowell County line.

Mcdowell County 3 SSW Graphite 06 0100EST 1 0 20.00K 0.00K Debris Flow A 32-year old man was killed when he was buried by debris from a landslide while inspecting a rail line in far western McDowell County. M32OU Burke County Table Rock 06 0200EST 0 0 0.00K 0.00K Debris Flow A landslide was reported on Kayga Ave, near Fish Hatchery Road.

Avery County 2 NNE Elk Park 06 0215EST 1 E Balm 1500EST 0 0 100.00K 0.00K Flood

Heavy rain affected Avery County from late on the 5th through the morning hours of the 6th. A Cocorahs observer near Linville reported 7.00 inches of rain for the 24 hour period from 7 am on the 5th til 7 am on the 6th, with another nearby observer reporting 6.92 inches. Several roads across the county were flooded or affected by rock and mud slides. A few of the flooded roads include Highway 184 in Banner Elk, Mullen Hill Road in Ingalls and Green Road in Altamont. Several private bridges were washed out along the Linville River with residences cut off from US 221 and NC 181. Some residences were evacuated in the Land Harbor subdivision between Linville and Crossnore. A fire and rescue vehicle was caught in rising waters along Elk River Road and had to be abandoned. On US 19E, Buck Hill Campground had to be evacuated, with campers taken across the road to the Green Valley Fire Department. til 3 pm on the 6th.

406 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH CAROLINA, Southwest Mitchell County 1 W Webbs 06 0700EST 1 NNW Tipton Hill 1100EST 0 0 0.00K 0.00K Flood

Pictures on the Yancey county News Facebook Page showed that NC 197 was flooded and closed where Brummett Creek flows into the North Toe River near the Relief Community. The flooding appears to be a backwater effect near the river. This is just inside Mitchell County on the Yancey, Mitchell County line.

Henderson County Gerton 06 1145EST 0 0 0.00K 0.00K Debris Flow 2 NE Bearwallow Two mudslides were reported on highway 74 in Gerton. A mudslide was also reported on Middlefork Rd off of highway 74. The roads were closed for a while. Catawba County 4 NNE Claremont 06 1200EST 0 0 2.00M 0.00K Flood 4 NNW Catawba 07 The gauge on Lookout Shoals Lake crested at a stage of 106.98 feet during the mid afternoon hours of the 6th. The lake only slowly receded over the next few days. Several residences were flooded along the lake. Some of the worst flooding was along Ridge Street in the Carpenter's Cove area as well as Longfield Street and Overlook Drive. In total, 21 homes suffered significant flood damage along the lake, while an additional 32 received minor damage.

A strong upper low slowly lifted northeast across the southern Appalachian Mountains over the 3 day period. While precipitable water values were not particularly strong with the low, a strong low level jet in advance of the system brought strong moisture transport and orographic ascent to the region, centered over the Blue Ridge Mountains of North Carolina. The hardest hit areas saw between 4 and 7 inches of rain over a two day period, resulting in a widespread duration flood event. Mainstem rivers and reservoirs were also significantly affected by prolonged period of heavy rain.

Iredell County 2 ESE Love Valley 06 1547EST 1 S New Hope 1554EST 0 0 Hail (1.50)

Roughly half dollar size large hail was reported near the intersection of Bruce Farm Rd and highway 115. Quarter size hail was also reported on Taylor Springs Rd. Iredell County 1 ESE Union Grove 06 1625EST 0 0 Hail (0.88)

Iredell County 1 NW Williamsburg 06 1625EST 0 0 Hail (1.00)

Quarter size hail was reported a couple miles southeast of Union Grove.

Iredell County 3 ENE Union Grove 06 1638EST 0 0 Hail (0.88)

Reports of large hail were received in association with a thunderstorm that moved to the northwest, across northern Iredell County. Rutherford County 1 NW Lake Lure 07 1330EST 0 0 500.00K 0.00K Debris Flow 1 WSW Uree A home along Lake Lure was condemned and a boat house destroyed after a landslide occurred along the immediate lake shore.

A strong upper low slowly lifted northeast across the southern Appalachian Mountains over the 3 day period. While precipitable water values were not particularly strong with the low, a strong low level jet in advance of the system brought strong moisture transport and orographic ascent to the region, centered over the Blue Ridge Mountains of North Carolina. The hardest hit areas saw between 4 and 7 inches of rain over a two day period, resulting in a widespread duration flood event. Mainstem rivers and reservoirs were also significantly affected by prolonged period of heavy rain.

Burke County 2 E Pleasant Grove Brke 07 1541EST 0 0 Hail (0.75)

Penny size hail fell along Sugar Loaf Rd. A few weak thunderstorms developed over western North Carolina beneath a strong upper low. Small hail was reported with one of the storms.

407 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH CAROLINA, Southwest Burke County 2 NNE Morganton 11 1715EST 0 0 Hail (1.00)

Quarter size hail was reported at Valley View St and highway 64.

Burke County 2 NNE Morganton 11 1715EST 0 0 Thunderstorm Wind (50EG)

Two pine trees and several large limbs were blown down at Valley View St and highway 64 about two miles north of Morganton. Large limbs were blown down nearby on Redbud Dr. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Burke County 3 N Drexel 11 1720EST 0 0 Hail (0.88)

Nickel size hail was reported on Smokey Creek Rd. Caldwell County Granite Falls 11 1735EST 0 0 Hail (0.88)

Nickel size hail was reported in Granite Falls. Burke County 4 ENE Brindletown 11 1805EST 0 0 Hail (0.88)

Nickel size hail was reported at Hayes Waters Rd and highway 64.

A broken line of thunderstorms developed along a cold front as it moved into the North Carolina foothills. A few of the storms produced hail and a little wind damage.

Madison County 2 NW Big Laurel 19 1411EST 0 0 Hail (1.00)

Quarter size hail fell along Chapel Hill Rd. Thunderstorms affected the North Carolina mountains during the afternoon hours. One of the storms produced large hail in Madison County. Yancey County 1 WNW Day Book 19 1530EST 1630EST 0 0 150.00K 0.00K Flash Flood

While occurring over a small area geographically, flash flooding affected the Jacks Creek community during the evening of the 19th. Watered entered the Jacks Creek Presbyterian Church to a depth of a few inches. Water also entered a few private residences in the area. A washed out culvert caused the road to collapse in front of the church, resulting in a 20 foot wide sink hole. Private bridges along the creek were swept away, isolating some residents and businesses. Residents said it was the worst flooding at this location since 1977.

Slow moving thunderstorms caused a localized area of flash flooding in Yancey County in the North Carolina mountains.

Transylvania County 1 E Balsam Grove 20 1447EST 0 0 Hail (1.00)

Up to quarter size hail was reported in the Balsam Grove area.

Transylvania County 2 SSE Balsam Grove 20 1450EST 0 0 Hail (0.75)

Penny size hail was reported on Pari Drive. Transylvania County 2 S Lake Toxaway 20 1524EST 0 0 Hail (1.00)

Quarter size hail was reported at Gorges State Park.

408 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH CAROLINA, Southwest Macon County Ellijay 20 1730EST 0 0 Hail (1.00)

Hail up to the size of half dollars was reported. Isolated thunderstorms developed over the North Carolina mountains during the afternoon hours. A couple of the storms produced large hail. Cabarrus County Harrisburg 21 1350EST 0 0 Hail (1.00)

Mecklenburg County 3 ESE Griffith 21 1432EST 0 0 Hail (1.00)

Quarter size hail fell near Southpark Mall. Mecklenburg County 4 SW Stonehaven 21 1435EST 0 0 Thunderstorm Wind (50EG)

Two trees were blown down on Colony Rd. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Union County 1 N Wesley Chapel 21 1512EST 0 0 Thunderstorm Wind (50EG)

A few trees blown down in areas northwest of Monroe. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Buncombe County 1 ENE Fairview 21 1603EST 0 0 Hail (0.88)

A few minutes of dime to nickel size hail were reported just north of Fairview.

Buncombe County 2 NNE Fairview 21 1604EST 0 0 Hail (1.00)

Quarter size hail was reported on Wrights Cove Road. Burke County 4 NNW Joy 21 1730EST 0 0 1.00K Hail (1.50)

Large hail dented vehicle in northern Burke County. Swain County 1 E Almond 21 1807EST 0 0 Thunderstorm Wind (50EG)

Multiple trees were down in the Almond area. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Mitchell County 2 NNE Webbs 21 2115EST 1 SSE Honeycutt 2215EST 0 0 10.00K 0.00K Flash Flood

Private access bridges that lead to both Battle Branch Road and Aaron Branch Road were washed away by flood waters. Based on media reports it appears that stream levels were high enough to cover both roads, and possibly others in the northern part of the county. A couple homes also briefly had water in them.

Scattered, disorganized thunderstorms developed over the North Carolina Piedmont, and eventually the mountains, during the afternoon hours. A few of the storms became severe, producing large hail and wind damage.

Buncombe County 1 NNW Avery Creek 22 1125EST 0 0 Hail (0.88)

Nickel size hail fell near Lake Powhatan.

409 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH CAROLINA, Southwest Buncombe County 1 SE Avery Creek 22 1130EST 0 0 Thunderstorm Wind (50EG)

A former NWS employee estimated winds gusting to 60 mph. Also, a large tree limb was blown down nearby on Ledbetter Rd.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Caldwell County 1 S Lenoir 22 1325EST 0 0 Hail (0.88)

Caldwell County 1 NW Whitnel 22 1328EST 1 SSE Lenoir 1333EST 0 0 15.00K Thunderstorm Wind (50EG)

A tree was blown down on a vehicle on Murray Place, 2 miles south of Lenoir. Another tree was blown down on Overlook Dr and a tree was blown down on an apartment building on Spainhour St in Lenoir.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Caldwell County 2 E Valmead 22 1350EST 0 0 Hail (0.75)

Spotter reported penny size hail on Plantation Dr. Swain County 1 NW Ela 22 1354EST 1355EST 0 0 Hail (1.00)

Quarter size hail fell 3 to 4 miles northeast of Bryson City, including at Bryson Dam.

Macon County Franklin Arpt 22 1415EST 0 0 Thunderstorm Wind (51MG)

The AWOS at the Macon County airport measured a 59 mph gust.

Note: The measured wind gust of 51 knots is equivalent to 59 mph. Macon County 1 S Franklin Arpt 22 1416EST 0 0 Hail (0.88)

Graham County 1 E Robbinsville 22 1639EST 0 0 Hail (1.00)

Quarter size hail was reported in Robbinsville. Polk County 1 W Sunny View 22 1648EST 0 0 Hail (1.00)

Quarter size hail fell along highway 9 in the Sunny View community.

Polk County 2 NW Sunny View 22 1652EST 0 0 Hail (0.75)

The relative of an NWS employee reported penny size inch hail on highway 9 at the Rutherford County line.

Polk County 1 SW Tryon 22 1704EST 0 0 Thunderstorm Wind (50EG)

Trees were blown down on North Trade St. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

410 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH CAROLINA, Southwest Rutherford County 5 W Rutherfordton 22 1705EST 1 NE Spindale 1715EST 0 0 Thunderstorm Wind (50EG)

Multiple trees were blown down across the central part of the county.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Polk County 2 WSW Collinsville 22 1707EST 0 0 Thunderstorm Wind (50EG)

A tree was blown down on Landrum Rd. Several large limbs were blown down nearby on Woody Circle.

Numerous thunderstorms developed over the region ahead of a cold front. The storms produced a mix of hail and damaging winds across western North Carolina. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Mitchell County 1 ENE Bakersville 22 2030EST 0 0 Hail (1.00)

Scattered, disorganized thunderstorms developed over the North Carolina Piedmont, and eventually the mountains, during the afternoon hours. A few of the storms became severe, producing large hail and wind damage.

Alexander County 2 NNW Vashti 23 1912EST 0 0 Hail (0.88)

Nickel size hail was reported near the Wilkes County line. Alexander County 3 NE Taylorsville 23 1935EST 0 0 Hail (0.75)

Penny size hail was reported on Rocky Top Rd. Alexander County 1 ESE Hiddenite 23 1949EST 0 0 Hail (1.00)

A line of thunderstorms dropped into Alexander County and produced a few reports of hail.

NORTH DAKOTA, Central and West Mchenry County 4 WSW Velva 01 0000CST 31 2359CST 0 0 50.00K 0.00K Flood

A late season rapid snow melt caused flooding along the Souris (Mouse) River through southwest McHenry County. Additionally, there were necessary releases from upstream dams in North Dakota and Saskatchewan, Canada, due to rapid snow melt there. Some roads near the river were damaged.

Ward County 2 ENE Foxholm 01 0000CST 4 WSW Minot 31 2359CST 0 0 150.00K 0.00K Flood

A late season rapid snow melt caused flooding along the Souris (Mouse) River and Des Lacs River through Ward County. Additionally, there were necessary releases from upstream dams in North Dakota and Saskatchewan, Canada, due to rapid snow melt there. Homes in the Project Road area near Burlington took on water. Many county and township roads near the rivers were damaged. A late season rapid snow melt caused flooding along the Souris (Mouse) River and Des Lacs River through north central North Dakota. Additionally, there were necessary releases from upstream dams in North Dakota and Saskatchewan, Canada, due to rapid snow melt there. Homes in the Project Road area near Burlington took on water. Many county and township roads near the river were damaged. This flood began in April and continued into June as spring rains added water to the basin.

Williams County 2 SE Tioga 13 2220CST 2230CST 0 0 0.00K 0.00K Thunderstorm Wind (59MG) Note: The measured wind gust of 59 knots is equivalent to 68 mph.

411 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH DAKOTA, Central and West Ward County 4 S South Prairie 13 2337CST 2342CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)

As scattered thunderstorms moved east across west and central North Dakota, isolated reports of severe thunderstorm wind gusts were received. Downdraft CAPE was at around 1000 at the time of the reports. Note: The measured wind gust of 51 knots is equivalent to 59 mph. NDZ033 Stark 14 0210CST 0230CST 0 0 0.00K 0.00K High Wind

Strong winds developed along a west to east moving cold front.

Stutsman County 1 NW (JMS)Jamestown Muni 14 0456CST 0501CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)

As scattered thunderstorms moved east across west and central North Dakota, isolated reports of severe thunderstorm wind gusts were received. Downdraft CAPE was at around 1000 at the time of the reports. Note: The measured wind gust of 51 knots is equivalent to 59 mph. NDZ021-035 Burleigh - Mclean 14 0500CST 1220CST 0 0 0.00K 0.00K High Wind

Strong winds developed along a west to east moving cold front.

Bowman County 4 NNW Haley 17 1734MST 1745MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Pea size hail accompanied the strong winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Adams County 8 NE Haynes 17 1905MST 1910MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Heavy rain accompanied the strong winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Adams County 12 NE Haynes 17 1915MST 1920MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Heavy rain accompanied the strong winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Adams County 17 ENE Haynes 17 1929MST 1934MST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

The strong winds destroyed lawn furniture. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Grant County 6 N Lark 17 2053MST 2058MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Heavy rain accompanied the strong winds. Scattered thunderstorms moving across southwest and far south central North Dakota produced severe thunderstorm wind gusts. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

412 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH DAKOTA, Central and West Grant County 9 WSW Shields 18 1645MST 1655MST 0 0 0.00K 0.00K Hail (1.75)

Slope County 17 NNW Marmarth 18 1938MST 1943MST 0 0 25.00K 0.00K Hail (1.75)

Windows at a farmstead were broken by the large hail and buildings were damaged.

Kidder County 6 SSE Robinson 18 1945CST 1950CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Pea size hail accompanied the strong winds. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Kidder County 4 SSE Lake Williams 18 1948CST 1953CST 0 0 0.00K 0.00K Hail (1.00)

Stutsman County 1 N Medina 18 2024CST 2029CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Large hail accompanied the strong winds. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Stutsman County 6 N Medina 18 2033CST 2039CST 0 0 0.00K 0.00K Hail (1.25)

Severe Thunderstorm Watch number 173 was in effect during this event. A subtle short wave upper level trough ejecting into the Northern Plains acted to further destabilize the atmosphere be weakening a capping inversion within an environment of 1000 Joules/KG of CAPE and 30 knots of effective wind shear. Large hail and severe thunderstorm winds occurred during this event.

Stark County 1 N Belfield 25 0625MST 0630MST 0 0 0.00K 0.00K Hail (1.00)

Mckenzie County 29 S Fairview 25 0735MST 0740MST 0 0 0.00K 0.00K Hail (0.88)

Scattered thunderstorms over western North Dakota produced large hail during the mid morning hours of the 25th.

Stark County 3 SSE (DIK)Dickinson Muni 25 1235MST 1240MST 0 0 0.00K 0.00K Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Stark County 3 S (DIK)Dickinson Muni 25 1249MST 1255MST 0 0 0.00K 0.00K Hail (1.75)

Bowman County Scranton 25 1330MST 1336MST 0 0 0.00K 0.00K Hail (1.00)

413 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH DAKOTA, Central and West Bowman County Gascoyne 25 1343MST 1348MST 0 0 0.00K 0.00K Hail (1.00)

Adams County 1 SE Reeder 25 1400MST 1405MST 0 0 0.00K 0.00K Hail (0.75)

Adams County 6 S Reeder 25 1400MST 1410MST 0 0 10.00K 0.00K Hail (2.75)

There was damage to buildings and automobiles. Adams County 3 S Bucyrus 25 1410MST 1415MST 0 0 0.00K 0.00K Hail (0.88)

Adams County 1 SE Reeder 25 1410MST 1415MST 0 0 0.00K 0.00K Hail (0.88)

Adams County Hettinger 25 1435MST 1445MST 0 0 0.00K 0.00K Hail (1.50)

Adams County 1 W Hettinger 25 1435MST 1441MST 0 0 0.00K 0.00K Hail (1.00)

Adams County 4 S Bucyrus 25 1506MST 1512MST 0 0 0.00K 0.00K Hail (1.00)

Adams County 16 E Haynes 25 1555MST 1600MST 0 0 0.00K 0.00K Hail (1.00)

Grant County 2 NW Heil 25 1600MST 1605MST 0 0 0.00K 0.00K Hail (0.75)

Grant County 2 NW Heil 25 1600MST 1605MST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Heavy rain accompanied the strong winds. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Adams County 17 E Haynes 25 1650MST 1655MST 0 0 0.00K 0.00K Hail (1.00)

Grant County 6 SSW Raleigh 25 1655MST 1735MST 0 0 0.00K 0.00K Heavy Rain

Measured 1.4 inches of rain in 40 minutes.

414 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH DAKOTA, Central and West Sioux County 12 SW Solen 25 1945MST 14 NNW Selfridge 2335MST 0 0 250.00K 50.00K Flash Flood

Torrential rain, with reports up to six inches, resulted in a flash flood over central Sioux County. The reports were consistent with Doppler Radar rain estimates. State Highway 6 was closed due to a foot of water flowing rapidly over the road at mile marker 18. Numerous county and tribal roads were flooded and had severe wash outs. Culverts were washed completely out in some cases. Tornado Watch number 217 was in effect during this event. Thunderstorms developing in the afternoon, in the warm sector of an area of low pressure, continued into the evening as an upper level short wave trough moved into the Dakotas. While the tornado threat did materialize as predicted, steep mid-level lapse rates, Mean Layer CAPE over 2000 Joules/KG, and deep layer shear to 45 knots supported updraft longevity and resulted in numerous reports of large hail. As the evening progressed the storms formed into a well-organized quasi-linear storm complex over south central North Dakota, producing damaging winds and torrential rain. The heaviest rain, up to six inches in central Sioux County, led to flash flooding from Selfridge to Porcupine.

NORTH DAKOTA, East Cavalier County 3 NNE Sarles 01 0000CST 9 NE Vang 08 1032CST 0 0 5.00K 0.00K Flood

Pembina County 4 NNW Walhalla Arpt 01 0000CST 1 NNW Pembina 08 1032CST 0 0 5.00K 0.00K Flood

Towner County 6 WNW Hansboro 01 0000CST 15 ENE Ellsberry 06 1305CST 0 0 5.00K 0.00K Flood

Walsh County 5 NNW Fairdale 01 0000CST 3 ENE Herrick 06 1252CST 0 0 5.00K 0.00K Flood

Melting snow caused overland flooding across portions of northeast North Dakota. Many rural roads were closed due to high water from the melting snow. Barnes County 2 ESE Peak 14 0514CST 0 0 20.00K 0.00K Thunderstorm Wind (56EG)

A semi-truck was blown over on Interstate 94 near mile point 295.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Barnes County 1 E Koldok 14 0523CST 0 0 15.00K 0.00K Thunderstorm Wind (56EG)

A semi-truck was flipped over by strong winds. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Cass County 2 WNW (FAR)Hector Intl Arp 14 0545CST 0 0 2.00K 0.00K Thunderstorm Wind (56EG)

Pieces of siding on a house were torn off by the strong winds in north Fargo. A swing set was also blown over.

Strong winds were associated with a line of thunderstorms that began near Jamestown, North Dakota, and tracked eastward through the Fargo/Moorhead and Dilworth, Minnesota, areas. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. NDZ006>008 Cavalier - Pembina - Towner 14 1255CST 1443CST 0 0 0.00K High Wind

415 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH DAKOTA, East

As a surface low pressure system over southern Canada exited to the east, strong west to northwest winds pushed in behind it. The strongest gusts occurred over the higher elevations of northeast North Dakota along the Canadian border.

Sargent County 1 N Cayuga 18 0120CST 0 0 0.00K 0.00K Hail (0.75)

An isolated thunderstorm moved into southeast North Dakota and dropped some small hail.

Walsh County 5 NW Hoople 20 1042CST 28 1000CST 0 0 100.00K 250.00K Flood

Township roads were closed and culverts washed out near Hoople in Dundee Township.

Pembina County 5 NW Crystal 20 1105CST 28 1000CST 0 0 100.00K 250.00K Flood

Western portions of Crystal prepared for evacuation as small stream flooding encroached on the community.

Cavalier County 5 NW Olga 20 1219CST 28 1000CST 0 0 200.00K 250.00K Flood

Several farm fields and farm access roads were flooded in south Olga Township.

A vertically stacked low pressure system brought persistent rain across eastern North Dakota. The most rain, four to six inches, fell across portions of Pembina, Cavalier, and Walsh counties. The highest amount, nine inches, fell near Walhalla.

Cass County 5 NW West Fargo 30 0115CST 0800CST 0 0 15.00K 0.00K Flood

Many roads in Fargo were water covered and closed. Sections of 12th Avenue North from the 3900 to 4200 block were closed with two feet of water covering it. Street and basement flooding was also reported in West Fargo. Two to five inches of rain was reported in a short amount of time. Slow moving thunderstorms dropped heavy rain over portions of east central Cass county. Most rainfall reports ranged from two to four inches. This caused several roads to be shut down due to high water levels.

Walsh County 5 NW Park River 31 0700CST 2359CST 0 0 20.00K 0.00K Flood

Significant street flooding was noted in the city of Park River with ditches and field flooding outside of town. The city storm sewer lift stations were unable to keep up with water due to closed sewer flap gates and ongoing river flooding. A report of 4.85 inches of rain was received from Park River.

The region remained under the influence of a stacked low pressure system over southeast North Dakota. A narrow band of three to five inches of rain fell across the Park River area, which had been hit with several rounds of steady rainfall in the past month. Numerous roads were closed due to high water.

Walsh County 2 WSW Oakwood 31 1253CST 0.1 25 0 0 0.00K Tornado (EF0)

A brief tornado touchdown was reported southwest of Oakwood.

Walsh County 2 WNW Oakwood 31 1317CST 2 NE Grafton 1325CST 2.25 25 0 0 0.00K Tornado (EF0)

This narrow tornado tracked intermittently for about two miles.

416 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH DAKOTA, East

By mid afternoon of the 31st, a west to east surface boundary set up along a line from Devils Lake to Grafton to the Upper Red Lake. The actual surface low was located over southeast North Dakota and was a vertically stacked low. Several tornadoes were reported as thunderstorm cells formed near Grafton, North Dakota.

OHIO, East Coshocton County 2 ENE Mohawk 15 2354EST 0 0 1.50K 0.00K Thunderstorm Wind (50EG)

A NWS employee found large trees down along the Walhonding River, and a small shed and boat blown into the river.

A weak cold front moved across the upper Ohio Valley late in the evening of the 15th and the early morning of the 16th. Scattered showers and thunderstorms developed along the front, one of which produced wind damage in Coshocton county. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

OHIO, North Marion County 3 S Marion 15 2250EST 0 0 0.00K 0.00K Hail (0.75)

Penny sized hail was observed. Marion County Green Camp 15 2255EST 0 0 0.00K 0.00K Hail (0.88)

Penny to nickel sized hail was observed. A cold front moved across northern Ohio causing showers and thunderstorms to develop. A few of the storms produced small hail. Morrow County Steam Corners 22 1617EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds downed a few large tree limbs. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Richland County Ontario 22 1625EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds downed a large tree limb. An area of low pressure moved across the central Great Lakes. A cold front trailing the low swept east across Ohio causing showers and thunderstorms to develop. A couple of the stronger thunderstorms became severe. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Huron County Willard 31 1455EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds downed a few large tree limbs. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Marion County La Rue 31 1615EST 0 0 3.00K 0.00K Thunderstorm Wind (56MG)

A trained spotter measured a 65 mph thunderstorm wind gust. Several large tree limbs were snapped.

Note: The measured wind gust of 56 knots is equivalent to 64 mph. Morrow County Shauck 31 1633EST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated at 60 mph. Several large tree limbs were downed.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Crawford County Galion 31 1636EST 0 0 25.00K 0.00K Thunderstorm Wind (50EG)

A large tree limb fell and crushed a van. A garage was also damaged.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

417 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OHIO, North Crawford County New Washington 31 1640EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds downed two trees. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Richland County Mansfield 31 1655EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds downed a large tree. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Huron County Norwalk 31 1710EST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)

Several large trees were snapped or uprooted. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Erie County Berlin Hgts 31 1720EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds downed two trees. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lorain County Wellington 31 1720EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds downed a tree and a few large limbs. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cuyahoga County Bay Vlg 31 1745EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds downed a few large tree limbs. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cuyahoga County 2 E Cleveland 31 1800EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

A tree fell on a highway east of downtown Cleveland. A very warm and humid airmass was in place on May 31st. Showers and thunderstorms developed across northern Ohio. Some of the stronger thunderstorms became severe. Damage was reported in several counties. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. OHIO, Northwest Van Wert County 1 ENE Middle Pt 30 1556EST 1557EST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)

Emergency management officials reported three telephone poles snapped 2 miles east of Middle Point.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Putnam County 1 W Ottoville 30 1609EST 1610EST 0 0 0.00K 0.00K Hail (0.75)

Defiance County 4 N Hicksville 30 1928EST 1929EST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)

Two trees, with some signs of rot, were blown down by strong winds. Several four to ten inch diameter branches were also down in the area. Power lines were reported down, likely from falling branches.

An unstable environment was in place across much of the region, allowing for scattered thunderstorm development. Shear profiles were rather weak, but sufficient to help a few storms organize somewhat and produce isolated severe weather. Note: The measured wind gust of 54 knots is equivalent to 62 mph.

418 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OHIO, Southeast Gallia County Gallipolis 10 1335EST 0 0 15.00K 0.00K Thunderstorm Wind (45EG)

A section of an old roof was blown down onto a parked vehicle. A tree also was knocked down.

Well ahead of an approaching cold front in the lower Ohio Valley, fast moving showers and thunderstorms streaked through southeast Ohio during the afternoon. Maximum wind gusts of 40 to 50 mph were on the leading edge of the largest cluster of convection. Note: The estimated wind gust of 45 knots is equivalent to 52 mph.

OHIO, Southwest Franklin County 1 WSW Homedale 10 1310EST 1314EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

A tree was downed near Olentangy Commons due to thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Franklin County 1 NE Hilliard 10 1314EST 1318EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

A tree was downed in Hilliard due to thunderstorm winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Delaware County 1 SW Africa 10 1322EST 1326EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Trees were reported down near Orange Road and Bale-Kenyon Road due to thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Licking County 1 E Granville 10 1345EST 1349EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

Trees and power lines were reported down in the area due to thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Licking County 1 NW Vanatta 10 1353EST 1357EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A tree was downed near the intersection of Chestnut Hills Road and Marion Road due to thunderstorm winds.

Low pressure approaching the region helped to enhance thunderstorm development as they organized into a line during the afternoon. A couple of these storms along the northern portion of the line became severe. The main threat from these storms was damaging winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Warren County 2 ESE Franklin 16 1454EST 1458EST 0 0 Hail (0.88)

Adams County 1 N Bentonville 16 1520EST 1620EST 0 0 0.00K 0.00K Flood

State Route 41 was closed near State Route 136 due to flooding caused by heavy rainfall.

Clinton County Lumberton 16 1600EST 1700EST 0 0 0.00K 0.00K Heavy Rain

Minor flooding was reported along Highway 68 in northern Clinton County due to heavy rainfall.

419 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OHIO, Southwest Greene County 1 SE Middle Corners 16 1600EST 1700EST 0 0 0.00K 0.00K Heavy Rain

Minor flooding was reported along Highway 68 in southern Greene County due to heavy rainfall.

Showers and thunderstorms developed near a stationary front early in the day. Multiple storms moved over the same locations during the afternoon. This caused heavy rainfall and localized flooding to occur. These storms were also capable of producing sub severe hail. Hamilton County 1 N Fernbank 31 1345EST 1349EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

A one foot diameter tree was snapped and several branches were downed near Addyston due to thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Hamilton County 1 SW Evendale 31 1405EST 1409EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Six inch diameter branches were downed near Reading due to thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Butler County 1 S Oakland 31 1413EST 1417EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Large limbs were reported down in Monroe due to thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Warren County 1 NW Springboro 31 1427EST 1431EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Trees, one large branch, and many small branches were reported down in the Springboro area due to thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Montgomery County 1 SE Kettering 31 1435EST 1439EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

A tree was downed in Oakwood due to thunderstorm winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Warren County Harveysburg 31 1438EST 1442EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Large branches were downed in Harveysburg due to thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Montgomery County 1 W Beavertown 31 1440EST 1444EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Large branches were blown down in Kettering due to thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

420 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OHIO, Southwest Montgomery County (DAY)Cox Dayton Intl 31 1448EST 1449EST 0 0 Thunderstorm Wind (51MG) Note: The measured wind gust of 51 knots is equivalent to 59 mph.

Clark County 1 N Springfield 31 1507EST 1 SW Villa 1514EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

A tree was snapped and large branches were downed in the Springfield area due to thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Union County 2 N Marysville 31 1545EST 1549EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

Several two foot diameter trees were downed in Marysville due to thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Union County Mrysvll Union Co Arp 31 1545EST 1549EST 0 0 Thunderstorm Wind (51MG) Note: The measured wind gust of 51 knots is equivalent to 59 mph.

Union County 2 W Pharisburg 31 1553EST 1554EST 0 0 Thunderstorm Wind (60MG)

Clusters of strong to severe thunderstorms developed during the peak heating of the day with strong upper level winds in place. The main threat from these storms was damaging winds. Note: The measured wind gust of 60 knots is equivalent to 69 mph.

OKLAHOMA, Eastern

OKZ054>057-059> Craig - Creek - Nowata - Osage - Pawnee - Rogers - Tulsa - Washington 061-064 01 0000CST 31 2200CST 0 0 0.00K 0.00K Drought

Widespread and heavy rainfall fell across much of eastern Oklahoma during May 2013. The region generally received between four and ten inches of rain during the month with some areas receiving in excess of fifteen inches. This month's rainfall, combined with rainfall over the past couple months, helped alleviate drought conditions across all of eastern Oklahoma. Severe (D2) to extreme (D3) drought conditions across a large portion of northeastern Oklahoma early in the month improved to abnormally dry (D0) to moderate drought (D1) by month's end. Monetary damage estimates as a result of the drought were not available. Tulsa County 2 SSE Bozarth 09 0306CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Strong thunderstorm wind snapped large tree limbs. Thunderstorms developed along an outflow boundary that was pushing into northeastern Oklahoma during the early morning hours of the 9th. The stronger storms produced damaging wind gusts. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Adair County 1 ESE Watts 10 0800CST 11 0200CST 0 0 0.00K 0.00K Flood

The Illinois River near Watts rose above its flood stage of 13 feet at 9:00 am CDT on May 10th. The river crested at 18.77 feet at 7:00 pm CDT on the 10th, resulting in moderate flooding. The river fell below flood stage at 3:00 am CDT on the 11th.

Very persistent and occasionally heavy rainfall occurred from the evening of the 9th through the morning of the 10th across the headwaters of the Illinois River. This heavy rainfall resulted in moderate flooding of the Illinois River near Watts.

421 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Eastern Cherokee County 2 SSE Tahlequah 10 2100CST 12 0100CST 0 0 0.00K 0.00K Flood

The Illinois River near Tahlequah rose above its flood stage of 11 feet at 10:00 pm CDT on May 10th. The river crested at 15.11 feet at 7:00 pm CDT on the 11th, resulting in moderate flooding. The river fell below flood stage at 2:00 am CDT on the 12th. Very persistent and occasionally heavy rainfall occurred from the evening of the 9th through the morning of the 10th across the headwaters of the Illinois River. This heavy rainfall resulted in moderate flooding of the Illinois River near Tahlequah.

Choctaw County Grant 15 1520CST 0 0 0.00K 0.00K Hail (0.88)

Choctaw County 1 W Hugo 15 1525CST 0 0 0.00K 0.00K Hail (1.00)

Choctaw County 2 WNW Hugo 15 1526CST 0 0 0.00K 0.00K Hail (1.00)

Choctaw County Hugo 15 1530CST 0 0 0.00K 0.00K Hail (1.00)

Pittsburg County Featherston 15 1705CST 0 0 50.00K 0.00K Thunderstorm Wind (70EG)

Strong thunderstorm wind blew down several power poles, flipped over a storage building and blew another into a line of trees, and flipped over a pontoon boat. Thunderstorms developed along a dry line and moved across parts of southeastern Oklahoma. Large hail and damaging winds occurred with the stronger storms. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Rogers County 7 NNW Catoosa 19 0141CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

Strong thunderstorm wind blew down a large tree branch onto a driveway.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Creek County 1 N Drumright 19 1740CST 0 0 0.00K 0.00K Hail (1.00)

Creek County 2 WNW Shamrock 19 1747CST 1748CST 0.2 50 0 0 0.00K 0.00K Tornado (EF0)

A brief tornado was photographed by a Fox23 storm chaser. No damage is known to have occurred from this tornado as it remained over open country. Creek County New Mannford 19 1808CST 0 0 0.00K 0.00K Hail (0.88)

Okfuskee County 4 NW Paden 19 1820CST 3 ENE Micawber 1838CST 10.9 700 0 0 50.00K 0.00K Tornado (EF1)

This is the second segment of a three segment tornado, which began in Lincoln County north-northeast of Prague. In Okfuskee County, the tornado snapped or uprooted numerous trees and damaged several barns and outbuildings. Based on this damage, maximum estimated wind in this segment of the tornado was 100 to 110 mph. The tornado continued into Creek County, where it dissipated.

422 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Eastern Creek County 7 SSW Iron Post 19 1838CST 1840CST 1.4 200 0 0 0.00K 0.00K Tornado (EF1)

This is the third segment of a three segment tornado, continuing from Okfuskee County. In Creek County, this tornado snapped large tree limbs and uprooted a few small trees. Based on this damage, maximum estimated wind in this segment of the tornado was 85 to 95 mph.

Okmulgee County 2 W Nuyaka 19 1920CST 0 0 0.00K 0.00K Hail (1.00)

Okmulgee County Beggs 19 1930CST 0 0 0.00K 0.00K Hail (1.00)

Osage County Shidler Arpt 19 2010CST 0 0 0.00K 0.00K Hail (1.00)

Osage County 1 WSW Burbank 19 2038CST 0 0 10.00K 0.00K Thunderstorm Wind (56EG)

A small barn was destroyed and several large tree limbs were blown down by strong thunderstorm wind.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Osage County 9 NW Bigheart 19 2041CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Strong thunderstorm wind blew down large tree limbs. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Osage County 1 N Fairfax 19 2101CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

A large tree was blown down onto a roadway by strong thunderstorm winds.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Washington County 5 NW Copan 19 2120CST 0 0 0.00K 0.00K Hail (1.00)

Nowata County 1 SE South Coffeeville Ar 19 2143CST 0 0 5.00K 0.00K Thunderstorm Wind (61EG)

Strong thunderstorm wind blew down a few power poles. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Craig County 7 N Welch 19 2212CST 0 0 5.00K 0.00K Thunderstorm Wind (61EG)

Strong thunderstorm wind blew down several power poles. Early morning thunderstorms produced isolated wind damage across northeastern Oklahoma during the morning of the 19th but more widespread severe weather occurred later in the day. Severe thunderstorms developed across central Oklahoma along a dry line during the late afternoon hours. Very unstable air combined with very strong wind shear allowed these storms to evolve rapidly into supercells, which produced several damaging tornadoes in central Oklahoma before moving into eastern Oklahoma. Most of these supercell thunderstorms gradually weakened as they moved into the eastern portion of the state. The storm that produced damaging tornadoes around Shawnee also produced a strong tornado west and northwest of Prague, and another north northeast of Prague that moved across northwestern Okfuskee County. Another supercell produced a brief tornado northwest of Shamrock in northwestern Creek County before weakening as it moved further into northeastern Oklahoma. Large hail and damaging wind was reported across portions of northeastern Oklahoma during the evening. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Osage County 9 N Bigheart 20 1415CST 0 0 25.00K 0.00K Hail (4.25)

423 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Eastern Pawnee County 1 SSE Cleveland 20 1415CST 0 0 0.00K 0.00K Hail (0.88)

Osage County 4 S Avant 20 1451CST 1501CST 4.5 500 0 0 5.00K 0.00K Tornado (EF1)

This is the first segment of a two segment tornado. In Osage County, the tornado snapped or uprooted a number of hardwood trees. Large tree limbs were snapped, one of which fell onto the roof of a home. Based on this damage, estimated maximum wind in the tornado was 100 to 110 mph. It was photographed by a number of storm spotters and storm chasers. This tornado continued into Washington County, Oklahoma.

Washington County 7 W Vera 20 1501CST 1505CST 2 500 0 0 0.00K 0.00K Tornado (EF1)

This is the second and final segment of this tornado. In Washington County, the tornado snapped or uprooted numerous trees. Based on this damage, maximum estimated wind in the tornado was 100 to 110 mph. Numerous storm spotters and storm chasers photographed this tornado.

Washington County 3 SSE Ramona 20 1521CST 1530CST 4.5 400 0 0 10.00K 0.00K Tornado (EF1)

This tornado damaged the roofs of two homes and damaged the siding of another. It also snapped or uprooted several hardwood trees. Based on this damage, maximum estimated wind in the tornado was 95 to 105 mph. Multiple storm spotters and storm chasers photographed this tornado.

Washington County 6 ENE Ramona 20 1533CST 1534CST 0.6 150 0 0 0.00K 0.00K Tornado (EF0)

This is the first segment of a two segment tornado. Several storm spotters and storm chasers photographed this tornado. An NWS damage survey team could find no damage in the Washington County segment as it remained over open country during this portion of its life cycle.

Rogers County 8 WNW Talala 20 1534CST 1547CST 5.4 500 0 0 30.00K 0.00K Tornado (EF1)

This is the second and final segment of this tornado. In Rogers County, this tornado remained over open country for much of its life cycle but an NWS damage survey team did find a home that received roof damage and a barn that had two doors blown out by the tornado. A cattle trailer was also thrown across a field. Several trees were also damaged. Based on this damage, maximum estimated wind in the tornado was 95 to 105 mph but video of this tornado indicates that it may have been stronger over open country before it hit the home and barn. Multiple storm spotters and storm chasers photographed the tornado until it dissipated.

Osage County 1 NE Avant 20 1550CST 0 0 25.00K 0.00K Hail (2.75)

Washington County Copan 20 1559CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Strong thunderstorm wind blew down large tree limbs. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mcintosh County 3 N Checotah 20 1649CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

A police officer reported thunderstorm wind gusts estimated to 65 mph.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

424 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Eastern Muskogee County Wainwright 20 1652CST 0 0 0.00K 0.00K Hail (1.00)

Craig County 4 WSW Pyramid Corners 20 1700CST 0 0 0.00K 0.00K Thunderstorm Wind (57MG)

The Oklahoma Mesonet station near Vinita measured 66 mph thunderstorm wind gusts.

Note: The measured wind gust of 57 knots is equivalent to 66 mph. Ottawa County 4 SW Ottawa 20 1725CST 4 ENE Wyandotte 1740CST 10 800 0 0 1.00M 0.00K Tornado (EF2)

This tornado snapped or uprooted numerous trees and damaged numerous homes. It moved east-northeast for several miles but turned more easterly after crossing the Neosho River. The most significant damage occurred as the tornado crossed Highway 137, where a metal building and several homes were severely damaged. Many hardwood trees were also snapped above the ground in that area. Based on this damage, maximum estimated wind in the tornado was 115 to 125 mph.

An EF2 tornado severely damaged a metal building northwest of Wyandotte in Ottawa County, Oklahoma, during the evening hours of May 20, 2013. Photo by Ed Calianese, WCM, WFO Tulsa. Ottawa County 3 N Fairland 20 1730CST 0 0 5.00K 0.00K Thunderstorm Wind (61EG)

Strong thunderstorm wind blew in west-facing garage doors, damaged privacy fences, and snapped large tree limbs along Highway 125. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Adair County 2 SE Proctor 20 1732CST 2 WNW Christie 1734CST 2 150 0 0 0.00K 0.00K Tornado (EF1)

This tornado uprooted trees and snapped a few other trees. Based on this damage, maximum estimated wind in the tornado was 95 to 105 mph. Ottawa County 2 WNW Wyandotte 20 1732CST 1741CST 8.5 600 0 0 150.00K 0.00K Tornado (EF1)

This is the first segment of a two segment tornado. In Ottawa County, Oklahoma, this tornado damaged several houses, damaged barns and outbuildings, and snapped or uprooted a number of trees. Based on this damage, maximum estimated wind in the tornado was 100 to 110 mph. The tornado moved in an easterly direction for much of its life cycle but turned more to the northeast as it approached the state line. It continued into Newton County, Missouri, and dissipated on the south side of the town of Seneca.

425 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Eastern Adair County 2 WSW Christie 20 1735CST 1737CST 2.5 300 0 0 15.00K 0.00K Tornado (EF1)

This tornado snapped or uprooted a number of trees and damaged a barn. Based on this damage, maximum estimated wind in the tornado was 100 to 110 mph. Adair County 1 NE Addielee 20 1740CST 4 SSE Ballard 1745CST 5.8 500 0 0 125.00K 0.00K Tornado (EF1)

This is the first segment of a two segment tornado. In Adair County, this tornado destroyed two barns and damaged a third barn. It also snapped or uprooted numerous trees as it moved northeast. Based on this damage, maximum estimated wind in this segment of the tornado was 100 to 110 mph. The tornado continued into Washington County, Arkansas, where it dissipated north of the town of Cincinnati.

Sequoyah County Vian 20 1821CST 0 0 25.00K 0.00K Thunderstorm Wind (70EG)

Strong thunderstorm wind blew down trees onto homes and cars.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Pushmataha County 4 NW Tuskahoma 20 1855CST 0 0 0.00K 0.00K Thunderstorm Wind (57MG)

The Oklahoma Mesonet station near Clayton measured 66 mph thunderstorm wind gusts.

Note: The measured wind gust of 57 knots is equivalent to 66 mph. Le Flore County Talihina 20 1914CST 0 0 2.00K 0.00K Thunderstorm Wind (65EG)

Strong thunderstorm wind blew down a few trees and power lines.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Le Flore County 2 S Milton 20 1933CST 1934CST 0.7 260 0 0 0.00K 0.00K Tornado (EF0)

This tornado damaged trees. Maximum estimated wind in the tornado based on this damage was 70 to 80 mph.

Le Flore County Poteau 20 1941CST 0 0 10.00K 0.00K Thunderstorm Wind (70EG)

A building had portions of its roof blown off and several other buildings had windows blown out by strong thunderstorm wind. Numerous trees and power lines were blown down. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Sequoyah County 3 E Akins 20 1941CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

Strong thunderstorm wind blew down trees along Highway 101. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Le Flore County 1 ENE Neff 20 1944CST 2 S Rock Is 1955CST 8.5 500 0 0 5.00K 0.00K Tornado (EF1)

This tornado damaged the roof of a home, uprooted several trees, and snapped a number of large tree limbs. Based on this damage, maximum estimated wind in the tornado was 90 to 100 mph.

OKZ073 Pittsburg 20 2000CST 2015CST 0 0 0.00K 0.00K High Wind

426 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Eastern Pushmataha County 4 SSE Clayton 20 2000CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Several trees at Clayton State Park were damaged by strong thunderstorm winds.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Le Flore County 1 ENE Arkoma 20 2008CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Large tree limbs were blown down by strong thunderstorm wind.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

OKZ071 McIntosh 20 2010CST 2025CST 0 0 0.00K 0.00K High Wind

Severe thunderstorms developed along a nearly stationary frontal boundary over central Oklahoma during the early afternoon hours of the 20th. Very unstable air combined with strong low-level and deep-layer shear resulted in long-lived supercells forming over central Oklahoma and moving eastward into eastern Oklahoma. Several tornadoes occurred from these storms across Osage, Washington, and Nowata Counties. The storms organized into bow echos and line segments over eastern Oklahoma, from which several other tornadoes developed during the early evening hours across Ottawa, Adair, and Le Flore Counties. Damaging wind and large hail was also widespread across the region from these storms.

Le Flore County 1 SSE Settlement 21 0830CST 1 N Hontubby 1200CST 0 0 0.00K 0.00K Flash Flood

Several rural roads were flooded and impassable across portions of Le Flore County.

Sequoyah County Gans 21 0927CST 1130CST 0 0 0.00K 0.00K Flash Flood

Several roads were reported flooded and impassable. A cold front pushed into the region early on the 21st, stalling over east central and southeast Oklahoma. Persistent heavy rains led to some localized flash flooding across parts of this area.

Pushmataha County 1 NW Antlers 21 1800CST 23 0300CST 0 0 0.00K 0.00K Flood

The Kiamichi River near Antlers rose above its flood stage of 25 feet at 7:00 pm CDT on May 21st. The river crested at 30.68 feet at 10:00 am CDT on the 22nd, resulting in moderate flooding. The river fell below flood stage at 4:00 am CDT on the 23rd.

Thunderstorms developed along a cold front from southwest to east central Oklahoma during the early morning hours of the 21st. The front moved slowly southward and became nearly stationary near the Red River during the day. Widespread and persistent thunderstorm activity occurred along and north of the front for much of the day resulting in locally heavy rainfall across much of southeastern Oklahoma. This heavy rainfall resulted in moderate flooding of the Kiamichi River near Antlers.

Pawnee County 3 NE Pawnee 29 1830CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

The Oklahoma Mesonet station near Pawnee measured 58 mph thunderstorm wind gusts.

Note: The measured wind gust of 50 knots is equivalent to 58 mph. Osage County 3 NNE Pearsonia 29 1850CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)

The Oklahoma Mesonet station near Foraker measured 59 mph thunderstorm wind gusts.

Note: The measured wind gust of 51 knots is equivalent to 59 mph.

427 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Eastern Creek County 3 SW New Mannford 29 1858CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

Strong thunderstorm wind blew down several large trees along Highway 48.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Osage County 1 SE Hominy 29 1900CST 0 0 15.00K 0.00K Thunderstorm Wind (70EG)

Several large trees were blown down by strong thunderstorm winds, one of which fell onto a home.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Tulsa County 1 SE Sand Spgs 29 1926CST 0 0 0.00K 0.00K Hail (1.00)

Washington County 1 ESE Bartlesville 29 1938CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

A tree was blown down by strong thunderstorm wind. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Pawnee County 3 NE Pawnee 29 2120CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)

The Oklahoma Mesonet station near Pawnee measured 59 mph thunderstorm wind gusts.

Note: The measured wind gust of 51 knots is equivalent to 59 mph. Muskogee County 2 SSW Briartown 29 2332CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

Large tree limbs and other wind-blown debris blocked portions of Highway 2 between Briartown and the Canadian river.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Haskell County 3 ENE Whitefield 29 2345CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

The Oklahoma Mesonet station near Stigler measured 58 mph thunderstorm wind gusts.

Note: The measured wind gust of 50 knots is equivalent to 58 mph. Osage County 1 SSW Skiatook 30 0000CST 0300CST 0 0 25.00K 0.00K Flash Flood

Flood water was reported up to and in some homes on Oak Street.

Sequoyah County 1 SW Marble City 30 0010CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

Several trees were blown down by strong thunderstorm winds. A complex of thunderstorms that formed in Kansas, pushed south into eastern Oklahoma during the evening of the 29th. Strong damaging wind and large hail occurred with the more intense storms. A narrow band of heavy rain also occurred over portions of eastern Osage County, resulting in localized flash flooding. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Le Flore County Muse 30 1045CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several large tree limbs were blown down by strong thunderstorm wind.

428 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Eastern

A complex of storms that had been over portions of eastern Oklahoma during the early morning hours intensified during the late morning and afternoon resulting in isolated reports of large hail and damaging wind. A much more widespread severe weather event occurred later in the day as severe thunderstorms redeveloped across central and eastern Oklahoma during the afternoon hours ahead of a dry line over central Oklahoma and along an outflow boundary across northeastern Oklahoma. The storms produced large hail and damaging wind. A bow echo type of storm produced a brief tornado in northern Creek County during the afternoon. Two supercell thunderstorms moved along the outflow boundary from the morning thunderstorms and produced several tornadoes during the evening. One storm produced several tornadoes across Mayes County and the other produced a damaging tornado in Broken Arrow. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

Tulsa County Turley 30 1230CST 31 2345CST 0 0 0.00K 0.00K Flood

The Bird Creek near Sperry rose above its flood stage of 21 feet at 1:30 pm CDT on May 30th. The river crested at 24.43 feet at 8:30 am CDT on the 31st, resulting in moderate flooding. The river fell below flood stage at 12:45 am CDT on June 1st.

Several rounds of thunderstorms occurred across eastern Oklahoma from the 29th through the 31st of May. Widespread and heavy rainfall resulted across the region during this period with four to eight inches of rain occurring across much of northeastern Oklahoma. This rainfall resulted in moderate flooding of the Bird Creek near Sperry.

Nowata County 1 ESE South Coffeeville Ar 30 1249CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several large tree limbs were blown down by strong thunderstorm winds.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Pawnee County 6 N Pawnee 30 1320CST 0 0 0.00K 0.00K Hail (1.00)

Creek County 4 NNW Oilton 30 1501CST 0.1 50 0 0 0.00K 0.00K Tornado (EF0)

Storm chasers reported a brief tornado over open country. No known damage resulted from this tornado.

A complex of storms that had been over portions of eastern Oklahoma during the early morning hours intensified during the late morning and afternoon resulting in isolated reports of large hail and damaging wind. A much more widespread severe weather event occurred later in the day as severe thunderstorms redeveloped across central and eastern Oklahoma during the afternoon hours ahead of a dry line over central Oklahoma and along an outflow boundary across northeastern Oklahoma. The storms produced large hail and damaging wind. A bow echo type of storm produced a brief tornado in northern Creek County during the afternoon. Two supercell thunderstorms moved along the outflow boundary from the morning thunderstorms and produced several tornadoes during the evening. One storm produced several tornadoes across Mayes County and the other produced a damaging tornado in Broken Arrow.

Ottawa County 9 WNW North Miami 30 1530CST 5 W Miami 31 2359CST 0 0 0.00K 0.00K Flood

The Neosho River near Commerce rose above its flood stage of 15 feet at 4:30 pm CDT on May 30th. The river crested at 22 feet at 9:00 am CDT on June 2nd, resulting in moderate flooding. The river fell below flood stage at 4:30 am CDT on June 4th.

Several rounds of thunderstorms occurred across eastern Oklahoma from the 29th through the 31st of May. Widespread and heavy rainfall resulted across the region during this period with four to eight inches of rain occurring across much of northeastern Oklahoma. This rainfall resulted in moderate flooding of the Neosho River near Commerce.

Rogers County 3 SW Catale 30 1550CST 0 0 0.00K 0.00K Hail (0.88)

Craig County White Oak 30 1558CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

A large tree was blown down by strong thunderstorm wind. Note: The estimated wind gust of 65 knots is equivalent to 75 mph.

429 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Eastern Creek County 4 W Sapulpa 30 1600CST 1610CST 0 0 0.00K 0.00K Hail (1.00)

Creek County 4 WNW Sapulpa 30 1603CST 1608CST 0 0 0.00K 0.00K Hail (1.00)

Tulsa County 1 SE Sand Spgs 30 1604CST 0 0 0.00K 0.00K Hail (1.00)

Creek County 2 NW Sapulpa 30 1607CST 1612CST 0 0 20.00K 0.00K Hail (1.75)

Creek County 3 E Sapulpa 30 1615CST 0 0 0.00K 0.00K Hail (1.50)

Creek County 1 NNE Hilton 30 1615CST 1620CST 0 0 0.00K 0.00K Hail (1.00)

Creek County Hilton 30 1616CST 1621CST 0 0 15.00K 0.00K Hail (1.75)

Tulsa County 1 NW Tulsa R L Jones Arpt 30 1620CST 1627CST 0 0 0.00K 0.00K Hail (1.00)

Tulsa County Jenks 30 1627CST 0 0 0.00K 0.00K Thunderstorm Wind (60MG)

A storm chaser measured thunderstorm wind gusts of 69 mph. Note: The measured wind gust of 60 knots is equivalent to 69 mph. Tulsa County 4 ENE Jenks 30 1632CST 0 0 0.00K 0.00K Hail (0.88)

Tulsa County 6 S Tulsa 30 1638CST 0 0 0.00K 0.00K Hail (0.88)

Tulsa County 4 N Bixby 30 1639CST 0 0 0.00K 0.00K Hail (1.00)

Tulsa County Broken Arrow 30 1644CST 0 0 0.00K 0.00K Hail (0.75)

Mayes County 3 WSW Mazie 30 1749CST 0.1 50 0 0 0.00K 0.00K Tornado (EF0)

Storm chasers photographed a brief tornado over open country. No known damage resulted from this tornado.

Osage County Wynona 30 1754CST 0 0 0.00K 0.00K Hail (1.00)

430 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Eastern Mayes County 2 WSW Mazie 30 1754CST 0.1 50 0 0 0.00K 0.00K Tornado (EF0)

Storm chasers photographed a brief tornado over open country. No known damage resulted from this tornado.

Mayes County Mazie 30 1808CST 1809CST 0.6 100 0 0 0.00K 0.00K Tornado (EF0)

Storm chasers photographed a tornado over open country. No known damage resulted from this tornado.

Mayes County 2 SSE Murphy 30 1824CST 1830CST 2.1 200 0 0 0.00K 0.00K Tornado (EF1)

This tornado snapped a couple trees and uprooted several others. Based on this damage, maximum estimated wind in the tornado was 95 to 105 mph. Tulsa County 1 N Alsuma 30 1916CST 0 0 0.00K 0.00K Hail (1.00)

Tulsa County 2 S Tulsa Young Arpt 30 1925CST 0 0 25.00K 0.00K Hail (2.00)

Tulsa County 2 S Broken Arrow 30 1939CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

Strong thunderstorm wind likely associated with the rear flank downdraft of the tornadic supercell snapped numerous large tree limbs south, north, and east of the intersection of E 101st Street South and Lynn Lane.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Tulsa County 2 SSE Broken Arrow 30 1940CST 1941CST 0.6 220 0 0 50.00K 0.00K Tornado (EF1)

This is the first of two segments for this tornado. This tornado developed south of E 96th Street South and west of S 16th Street where it damaged roofs of homes, snapped or uprooted large trees, and destroyed barns as it moved northeast. Based on this damage, maximum estimated wind in this segment of the tornado was 100 to 110 mph. The tornado continued into Wagoner County, crossing County Line Road near E 94th Street South.

Wagoner County 2 SE Broken Arrow 30 1941CST 3 ENE Oneta 1954CST 5 450 0 0 3.00M 0.00K Tornado (EF2)

This is the second and final segment of this tornado. As the tornado crossed into Wagoner County south of E 91st Street South it blew down trees and damaged barns. Roofs of homes were damaged as it crossed E 91st Street South near S 199th E Avenue, where it also snapped trees and damaged barns. The tornado turned more east crossing open fields and the Muskogee Turnpike. A gas station, several metal buildings, and a small wood-framed building was damaged as it crossed Highway 51. The tornado appeared to intensify as it approached and crossed S 225th E Avenue where several homes were severely damaged. The most pronounced damage followed as the tornado moved into a subdivision north of E 91st Street South, where the second floor of one home was destroyed. Several other homes in this neighborhood sustained major damage to their roofs and exterior walls. The tornado continued to move eastward, crossing the Muskogee Turnpike where it snapped numerous large trees. Two school buildings lost a number of windows as the tornado approached S 257th E Avenue. A home was damaged and a large outbuilding was destroyed in this area. Trees were snapped along and near Joy Avenue before the tornado dissipated. Maximum estimated wind in this segment of this tornado based on this damage was 125 to 135 mph.

431 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Eastern

A complex of storms that had been over portions of eastern Oklahoma during the early morning hours intensified during the late morning and afternoon resulting in isolated reports of large hail and damaging wind. A much more widespread severe weather event occurred later in the day as severe thunderstorms redeveloped across central and eastern Oklahoma during the afternoon hours ahead of a dry line over central Oklahoma and along an outflow boundary across northeastern Oklahoma. The storms produced large hail and damaging wind. A bow echo type of storm produced a brief tornado in northern Creek County during the afternoon. Two supercell thunderstorms moved along the outflow boundary from the morning thunderstorms and produced several tornadoes during the evening. One storm produced several tornadoes across Mayes County and the other produced a damaging tornado in Broken Arrow.

An EF2 tornado severely damaged a house in Broken Arrow in Wagoner County, Oklahoma, during the evening of May 30, 2013. Photo by Ed Calianese, WCM, WFO Tulsa. Osage County 1 S Grainola 31 1610CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

Strong thunderstorm wind blew down trees. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Osage County 2 SSE Boulangerville 31 1659CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A small tree was snapped and large branches were blown down by strong thunderstorm wind.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Osage County 2 WNW Hulah 31 1718CST 0.1 50 0 0 0.00K 0.00K Tornado (EF0)

This brief tornado was reported by a storm chaser. The NWS survey team could find no damage as a result of this tornado as it occurred over open country. Osage County 4 SSE Little Chief 31 1730CST 1737CST 2.5 200 0 0 2.00K 0.00K Tornado (EF1)

This tornado remained over open country much of its life cycle but did snap two power poles. Maximum estimated wind in the tornado based on this limited amount of damage, from which to make the assessment, was 85 to 95 mph.

Washington County 5 ESE Owen 31 1738CST 1740CST 1.2 200 0 0 5.00K 0.00K Tornado (EF1)

This tornado occurred mostly over open country but did damage the roof of a home and uproot several trees. Based on this damage, maximum estimated wind in the tornado was 85 to 95 mph.

432 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Eastern Washington County 6 ESE Owen 31 1739CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

Strong thunderstorm wind, likely associated with the tornadic storm's rear flank downdraft, snapped large tree limbs.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Nowata County 1 SE South Coffeeville Ar 31 1755CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Numerous trees were damaged by strong thunderstorm wind. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Osage County 9 W Pawhuska 31 1759CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

A tree was uprooted by strong thunderstorm wind. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Nowata County 11 NE Lenapah 31 1818CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Large tree limbs were snapped by strong thunderstorm wind. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Nowata County 10 ESE South Coffeyville 31 1818CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

A tree was uprooted by strong thunderstorm wind. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Nowata County 10 E South Coffeyville 31 1821CST 1822CST 1.1 310 0 0 0.00K 0.00K Tornado (EF0)

This tornado damaged a number of trees. Based on this damage, maximum estimated wind in the tornado was 80 to 85 mph.

Nowata County 14 NE Lenapah 31 1822CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Trees were split and large branches were snapped by strong thunderstorm wind.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Craig County 18 WNW Welch 31 1823CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

A tree was uprooted and large branches were snapped by strong thunderstorm wind.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Creek County 1 WNW Drumright 31 1845CST 0 0 15.00K 0.00K Hail (1.75)

Rogers County 5 NW Talala 31 1921CST 1925CST 2.8 320 0 0 0.00K 0.00K Tornado (EF1)

This is the first of two segments of this tornado. The tornado snapped a number of trees and uprooted many others in Rogers County. Based on this tree damage, maximum estimated wind in the tornado was 100 to 110 mph. The tornado was photographed by several storm chasers. It continued into Nowata County, Oklahoma.

433 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Eastern Nowata County 3 SW Watova 31 1925CST 1926CST 0.7 320 0 0 0.00K 0.00K Tornado (EF1)

This is the final segment of a two segment tornado. In Nowata County, this tornado snapped or uprooted numerous trees. Based on this damage, maximum estimated wind in this segment was 100 to 110 mph. Several storm chasers photographed this tornado. The tornado moved east-northeast, turning more northeasterly as it crossed the N 4110 Road.

Rogers County 5 N Talala 31 1927CST 1928CST 0.2 240 0 0 0.00K 0.00K Tornado (EF1)

This is the first of two segements of this tornado. In Rogers County, this tornado snapped or uprooted trees. Maximum estimated wind in the tornado based on this damage was 100 to 110 mph. Several storm chasers photographed this tornado. It continued into Nowata County, Oklahoma.

Nowata County 2 SW Watova 31 1928CST 1935CST 4.6 350 0 2 75.00K 0.00K Tornado (EF1)

This is the final segment of this two segment tornado. In Nowata County, this tornado destroyed a mobile home, injuring two occupants. It also damaged other permanent homes, destroyed a barn, and snapped or uprooted numerous trees. Based on this damage, maximum estimated wind in this segment of the tornado was 100 to 110 mph. Several storm chasers photographed this tornado. This tornado moved east-northeast until it crossed E 28 Road then turned sharply to the north, paralleling the N 4150 Road until it dissipated.

Delaware County 3 NNE Zena 31 2223CST 3 SSW Grove 2227CST 1.8 500 0 0 0.00K 0.00K Tornado (EF1)

This tornado developed near the shore of Grand Lake and traveled east-northeast, snapping large tree limbs and uprooting many trees in its path. No significant damage was noted to the homes in the path near the lake shore. Based on this damage, maximum estimated wind in the tornado was 90 to 100 mph.

Delaware County 4 SE Grove 31 2230CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Trees were damaged by strong thunderstorm wind. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mcintosh County 2 W Eufaula Muni Arpt 31 2240CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

The Oklahoma Mesonet station near Eufaula measured 58 mph thunderstorm wind gusts.

Note: The measured wind gust of 50 knots is equivalent to 58 mph. Mcintosh County 2 SW Wells 31 2242CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A storm spotter estimated thunderstorm wind gusts to 70 mph.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Pittsburg County 5 W Bowler 31 2245CST 0 0 30.00K 0.00K Thunderstorm Wind (70EG)

Numerous large trees were blown down by strong thunderstorm wind, a few of which fell onto homes.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Pittsburg County 10 ENE Quinton Arpt 31 2248CST 0 0 15.00K 0.00K Thunderstorm Wind (56EG)

Strong thunderstorm wind damaged a marina dock in far northeast Pittsburg County.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

434 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Eastern Haskell County 5 NW Enterprise 31 2250CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

Strong thunderstorm wind blew down a few large trees. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Craig County Welch 31 2306CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Strong thunderstorm wind blew down several large tree limbs.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Muskogee County Porum 31 2308CST 0 0 0.00K 0.00K Hail (1.00)

Muskogee County Webbers Falls 31 2315CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

Strong thunderstorm wind blew down several large trees. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Okfuskee County Paden 31 2322CST 0 0 0.00K 0.00K Hail (1.00)

Sequoyah County 2 NW Box 31 2325CST 0 0 10.00K 0.00K Thunderstorm Wind (70EG)

Strong thunderstorm wind snapped eight power poles near the Black Gum Fire Department.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Sequoyah County Vian 31 2325CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

Strong thunderstorm wind blew down several large trees. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Sequoyah County 7 NE Gore 31 2325CST 0 0 0.00K 0.00K Thunderstorm Wind (75EG)

Strong thunderstorm wind snapped or uprooted large trees at Snake Creek Park at Lake Tenkiller.

Note: The estimated wind gust of 75 knots is equivalent to 86 mph. Cherokee County Cookson 31 2335CST 0 0 2.00K 0.00K Thunderstorm Wind (70EG)

Strong thunderstorm wind blew down large trees and damaged the awning of a store.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Sequoyah County 3 W Sallisaw 31 2337CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

Strong thunderstorm wind blew down several large trees. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Adair County Bunch 31 2342CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

Strong thunderstorm wind blew down several large trees. Note: The estimated wind gust of 70 knots is equivalent to 81 mph.

435 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Eastern Adair County 1 NW Bunch 31 2345CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Strong thunderstorm wind blew down large tree limbs. Severe thunderstorms developed over central Oklahoma and southern Kansas along a slow-moving cold front during the afternoon hours of the 31st. Very unstable air ahead of the cold front, combined with strong wind shear, resulted in storms quickly evolving into supercells. These storms produced several tornadoes, large hail to golfball size, and damaging wind across eastern Oklahoma during the evening hours of the 31st into the overnight hours of June 1st. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. OKLAHOMA, Extreme Southeast Mccurtain County Watson 30 1230CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Several trees were downed in extreme northeast McCurtain County Oklahoma near the community of Watson.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Mccurtain County 1 NW Wright City 30 1307CST 0 0 0.00K 0.00K Hail (0.75)

Mccurtain County 4 SSW Plunkettville 30 1435CST 1444CST 3.4 330 0 0 10.00K 0.00K Tornado (EF1)

A supercell thunderstorm moved through McCurtain county on the afternoon of May 30th. The storm produced an EF1 tornado about 6 miles southeast of Watson, Oklahoma. The tornado mainly uprooted and snapped trees. A tree fell on a home in this rural community, causing damage to the roof. The tornado then crossed over the state line into Arkansas about 3 miles southwest of Cove, Arkansas. Please see the report from WFO Little Rock on the continuation of this tornado.

A broad upper trough ejected out of the Great Basin and moved into the Central Plains. Broad southwest flow aloft developed across the Southern Plains into the Lower Mississippi Valley. A disturbance rotated around the trough and provided the lift needed for scattered thunderstorms across the Middle Red River Valley. Instability was extreme across the region and low level shear values were supportive of rotating thunderstorms during the early afternoon hours.

OKLAHOMA, Panhandle

OKZ001>003 Beaver - Cimarron - Texas 01 0000CST 31 2359CST 0 0 0.00K 75.0M Drought

Drought conditions across the Oklahoma Panhandle worsened due to limited precipitation during the month of May. The entire Oklahoma Panhandle now falls with Exceptional (D4) drought. While some precipitation occurred during the month of May, Guymon only recorded 0.16 inches of precipitation (2.28 inches below normal). The month was the 47th warmest and 4th driest May on record for the Oklahoma Panhandle. Limited dormant fuels remain in prime condition for the spread of fires across the Panhandle. The Keetch-Byram Drought Index remained steady state for the month of May with Texas County in the 600 to 800 range, while the remainder of the Oklahoma Panhandle remains in the 400 to 600 range. The sparse precipitation for the month and several freezes severely impacted developing crops. The Palmer Drought Severity Index for the month of May showed a degradation of conditions across the Panhandle with the entire Panhandle now rated as Severe Drought. Water watches remain in effect for several public water systems through May while voluntary to mandatory water restrictions have been enacted. Economic losses due to the drought through May were estimated near $25 million (D4) a county, and were predominately the result for poor growth of developing crops, heavy supplemental watering, and supplemental feed for cattle in pastures and rangeland.

OKZ002 Texas 01 0555CST 0556CST 0 0 0.00K 0.00K High Wind

436 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Panhandle

A cold front moved through the Oklahoma Panhandle during the early morning hours of the 1st. The strong post frontal surface pressure gradient caused surface winds to increase into the 35 to 39 mph range for several hours. An isolated high wind gust was reported by the Oklahoma Mesonet site in Goodwell (Texas County) at 5:55 AM CST as stronger upper level winds were able to mix to the surface. No other high wind gusts were reported after 5:55 am CST since the surface pressure gradient weakened in response to the cold front progressing well into central Texas.

OKZ001>003 Beaver - Cimarron - Texas 02 0015CST 0900CST 0 0 0.00K 0.00K Cold/Wind Chill

A cold front moved through the Oklahoma Panhandle during the day on the 1st, and the post frontal airmass allowed temperatures to drop below freezing quickly after sunset. These subfreezing temperatures threatened sensitive vegetation during the start of the growing season. Overnight lows ranged from 29 degrees at Boise City (Cimarron County) to 32 degrees at Guymon (Texas County). Temperatures quickly warmed above freezing during the late morning of the 2nd.

04 0300CST 0800CST 0 0 0.00K 0.00K Cold/Wind Chill

OKZ002-003 Beaver - Texas 04 0300CST 0800CST 0 0 0.00K 0.00K Cold/Wind Chill

The residual cold airmass over the Oklahoma Panhandle from a cold frontal passage earlier in the week had begun to modify. This kept overnight low temperatures from cooling as quickly as previous nights. Freezing temperatures were not obtained until the early morning hours on the 4th. These subfreezing temperatures threatened sensitive vegetation during the start of the growing season. Overnight lows ranged from 26 degrees at Kenton (Cimarron County) to 32 degrees at Guymon (Texas County). Temperatures quickly warmed above freezing during the mid-morning of the 4th.

OKZ001-002 Cimarron - Texas 05 0300CST 0700CST 0 0 0.00K 0.00K Cold/Wind Chill

The residual cold airmass over the Oklahoma Panhandle from a cold frontal passage earlier in the week had begun to modify. This kept overnight low temperatures from cooling as quickly as previous nights. Freezing temperatures were not obtained until the early morning hours on the 5th. These subfreezing temperatures threatened sensitive vegetation during the start of the growing season. Overnight lows ranged from 29 degrees at Kenton (Cimarron County) to 31 degrees at Goodwell (Texas County). Temperatures quickly warmed above freezing during the late morning of the 5rd.

Beaver County 1 SSW Beaver 18 1720CST 1721CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)

A storm developed just southwest of the town of Beaver (Beaver County) around 5 PM CST. The storm intensified quickly, and moved over the city. Once over the city, it began to merge with a congealing line stretching northward into the High Plains. During this merger the storm moved over the Oklahoma Mesonet site in Beaver (Beaver County), where it produced a downdraft gust of 59 mph. Once the storm merged with the line it accelerated to the northeast and exited the county.

A strong upper level trough moved into eastern New Mexico and Colorado during the afternoon hours of the 18th. The lift provided by this trough allowed storms to initiate across the eastern Oklahoma Panhandle and allowed these storms to utilize an area of elevated instability which stretched from the Oklahoma Panhandle northward into the Central High Plains. With deep layer shear values of 30 to 35 mph, scattered storms quickly congealed into a linear structure with a primary threat of damaging wind. Once the storm merged with the line it quickly moved to the east and exited the county. No reports of damage or of injuries were reported with this storm. Note: The measured wind gust of 51 knots is equivalent to 59 mph.

Beaver County 9 NNW Clear Lake 28 1408CST 9 WSW Knowles 1411CST 0.82 25 0 0 0.00K 0.00K Tornado (EF0)

437 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Panhandle

A landspout tornado formed during the afternoon hours of the 28th. Eye-witness accounts described the landspout as a brief spin-up that started from the ground and connected with the base of a developing thunderstorm. Several pictures were taken by the eye-witnesses from U.S. Highway 83 approximately 4 miles south of Beaver (Beaver County). A National Weather Service survey team, using the eye-witness accounts, located the track of this landspout. Very little damage was evident given the landspout formed over grasslands and away from developed real estate. The max estimated wind speed was 60 mph. No injuries or fatalities were associated with this landspout tornado.

Picture of a landspout 4 miles south of Beaver (Beaver County). Picture provided by Jennifer Palucki. Beaver County 6 E Forgan 28 1429CST 1440CST 1.77 25 0 0 0.00K 0.00K Tornado (EF0)

A landspout tornado formed during the afternoon hours of the 28th near the town of Beaver (Beaver County). Eye-witness accounts stated the landspout developed north of the Beaver Sand Dunes State Park east of State Road 23. A National Weather Service survey team located the start of the track approximately 4 miles north of Beaver (Beaver County). Eye-witness reported that the landspout traveled to the northwest, crossed State Road 23, and traveled west of State Road 23 before dissipating approximately 5 miles north-northwest of Beaver (Beaver County). The survey team verified the eye-witness accounts and noted that little damage was evident since the landspout formed over undeveloped grassland. The estimated max wind speed with this tornado was 60 mph. No injuries or fatalities were associated with this landspout.

Picture of a landspout 4 miles north of Beaver (Beaver County). Picture provided by Jennifer Palucki.

438 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Panhandle Beaver County 4 N Forgan 28 1508CST 1509CST 0 0 0.00K 0.00K Hail (1.50)

A discrete supercell thunderstorm developed along a retreating dryline during the evening hours of the 28th. As the storm moved to the northwest it began producing hail across the northern portion of Beaver County. The Beaver County Emergency Manager reported ping pong ball size hail north of the city of Forgan (Beaver County). The supercell continued moving to the northwest before weakening slightly as it moved into southern Kansas.

Beaver County 2 E Floris 28 1543CST 1545CST 0 0 0.00K 0.00K Hail (1.00)

A discrete supercell thunderstorm developed along a retreating dryline during the evening hours of the 28th. As the storm moved to the northwest it produced hail across the northern portion of Beaver County. The Beaver County Emergency Manager reported quarter size hail east of the city of Floris (Beaver County). The supercell continued moving to the northwest before weakening slightly as it moved into southern Kansas.

A severe weather outbreak brought hail, damaging winds, and tornadoes to portions of the Oklahoma Panhandle from the afternoon of the 28th into the early morning hours of the 29th. The morning upper air analysis on the 28th showed a mid-level shortwave trough rotating around the base of a longwave trough situated from Idaho to Arizona. At the surface, a dryline was situated from the northeastern Oklahoma Panhandle to the southwestern Texas Panhandle. The 6 AM CST upper air sounding from Amarillo showed a low level capping inversion with significant elevated instability. Also deep layer shear was primed for the development of discrete supercells. By noon, the northern portion of the dryline had moved into south central Kansas before stretching back into the southwestern Texas Panhandle, as instability values increased across the area. At this time, the combination of a residual cold frontal boundary and the dryline helped to form two landspout tornadoes as thunderstorms developed along the dryline across Beaver County. These tornadoes formed over undeveloped land and produced little damage. During the late evening the dryline began to retreat westward as the nocturnal low level jet transported moisture from the Gulf of Mexico northwestward. This allowed the remnants of a supercell that brought severe weather to the Texas Panhandle to move into Beaver County. These storms produced isolated downbursts while decaying over the county.

OKZ001 Cimarron 28 1730CST 1731CST 0 0 0.00K 0.00K High Wind

Several reports of high wind gusts were reported from the afternoon hours of the 28th into the early morning hours of the 29th. One such high wind gust was reported by the Oklahoma Mesonet site 3 miles south east of Boise City (Cimarron County). This high wind was due to the close proximity to a surface low in southeastern Colorado and being behind a dryline stretched across the far eastern Oklahoma Panhandle. The well mixed atmosphere and tighter surface pressure gradient allowed an stronger winds aloft to reach the surface resulting in an isolated high wind gusts of 59 mph. During the late afternoon hours, the dryline began to retreat to the west. At the same time decaying showers were overrunning the dryline before quickly dissipating. As these showers dissipated they caused isolated high wind gusts near the town of Beaver (Beaver County). One such gust was observed by the Oklahoma Mesonet site 1 mile south-southwest of Beaver (Beaver County) at 67 mph. An estimated 62 mph high wind gusts blew a tree down on a county road 6 miles southwest of Beaver (Beaver County). Another estimated 62 mph high wind gusts was responsible for breaking tree limbs off in the city of Beaver with some of the branches up to 4 inches in diameter. Two final high wind gusts were reported by the Oklahoma Mesonet during the early morning hours on the 29th. One of the gusts was measure to be 58 mph with the final high wind gusts measured to be 61 mph. These gusts were associated with decaying showers that sent off an outflow which brought stronger winds aloft to the surface. No further high wind gusts were observed after 3:35 AM CST on the 29th.

Beaver County 1 SSE Elmwood 28 1758CST 1800CST 0 0 800.00K 0.00K Thunderstorm Wind (56EG)

A cluster of thunderstorms developed along a retreating dryline across the north central Texas Panhandle, moved to the northeast, and entered Beaver County. While over the city of Elmwood (Beaver County), the thunderstorms produced a localized downburst that blew 8 power poles down. The Beaver County Emergency Manager relayed a report of the damage to the National Weather Service office in Amarillo (Potter County). The cluster of thunderstorms would continue a northeastern track before dissipating over southern Kansas. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

439 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Panhandle Beaver County 1 SSW Beaver 28 1810CST 1811CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)

A cluster of thunderstorms developed along a retreating dryline across the north central Texas Panhandle, moved to the northeast, and entered Beaver County. As the thunderstorms were over the city of Beaver (Beaver County), the Oklahoma Mesonet recorded a downburst gust of 59 mph. The cluster of thunderstorms would continue a northeastern track before dissipating over southern Kansas. Note: The measured wind gust of 51 knots is equivalent to 59 mph. Beaver County 1 SSW Beaver 28 1821CST 1822CST 0 0 0.00K 0.00K Thunderstorm Wind (59MG)

A cluster of thunderstorms developed along a retreating dryline across the north central Texas Panhandle, moved to the northeast, and entered Beaver County. As the thunderstorms were over the city of Beaver (Beaver County), the Oklahoma Mesonet recorded a downburst gust of 68 mph. The cluster of thunderstorms would continue a northeastern track before dissipating over southern Kansas. A severe weather outbreak brought hail, damaging winds, and tornadoes to portions of the Oklahoma Panhandle from the afternoon of the 28th into the early morning hours of the 29th. The morning upper air analysis on the 28th showed a mid-level shortwave trough rotating around the base of a longwave trough situated from Idaho to Arizona. At the surface, a dryline was situated from the northeastern Oklahoma Panhandle to the southwestern Texas Panhandle. The 6 AM CST upper air sounding from Amarillo showed a low level capping inversion with significant elevated instability. Also deep layer shear was primed for the development of discrete supercells. By noon, the northern portion of the dryline had moved into south central Kansas before stretching back into the southwestern Texas Panhandle, as instability values increased across the area. At this time, the combination of a residual cold frontal boundary and the dryline helped to form two landspout tornadoes as thunderstorms developed along the dryline across Beaver County. These tornadoes formed over undeveloped land and produced little damage. During the late evening the dryline began to retreat westward as the nocturnal low level jet transported moisture from the Gulf of Mexico northwestward. This allowed the remnants of a supercell that brought severe weather to the Texas Panhandle to move into Beaver County. These storms produced isolated downbursts while decaying over the county. Note: The measured wind gust of 59 knots is equivalent to 68 mph.

OKZ003 Beaver 28 1826CST 1828CST 0 0 0.00K 0.00K High Wind

29 0330CST 0332CST 0 0 0.00K 0.00K High Wind

29 0335CST 0336CST 0 0 0.00K 0.00K High Wind

Several reports of high wind gusts were reported from the afternoon hours of the 28th into the early morning hours of the 29th. One such high wind gust was reported by the Oklahoma Mesonet site 3 miles south east of Boise City (Cimarron County). This high wind was due to the close proximity to a surface low in southeastern Colorado and being behind a dryline stretched across the far eastern Oklahoma Panhandle. The well mixed atmosphere and tighter surface pressure gradient allowed an stronger winds aloft to reach the surface resulting in an isolated high wind gusts of 59 mph. During the late afternoon hours, the dryline began to retreat to the west. At the same time decaying showers were overrunning the dryline before quickly dissipating. As these showers dissipated they caused isolated high wind gusts near the town of Beaver (Beaver County). One such gust was observed by the Oklahoma Mesonet site 1 mile south-southwest of Beaver (Beaver County) at 67 mph. An estimated 62 mph high wind gusts blew a tree down on a county road 6 miles southwest of Beaver (Beaver County). Another estimated 62 mph high wind gusts was responsible for breaking tree limbs off in the city of Beaver with some of the branches up to 4 inches in diameter. Two final high wind gusts were reported by the Oklahoma Mesonet during the early morning hours on the 29th. One of the gusts was measure to be 58 mph with the final high wind gusts measured to be 61 mph. These gusts were associated with decaying showers that sent off an outflow which brought stronger winds aloft to the surface. No further high wind gusts were observed after 3:35 AM CST on the 29th.

440 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast OKZ004>023-027- Alfalfa - Beckham - Blaine - Caddo - Carter - Comanche - Cotton - Custer - Dewey - Ellis - Garfield - 033>039-041-044> Grady - Grant - Greer - Harmon - Harper - Jackson - Jefferson - Johnston - Kay - Kingfisher - Kiowa - 047-050>051 Logan - Love - Major - Marshall - Murray - Noble - Payne - Roger Mills - Stephens - Tillman - Washita - Woods - Woodward

01 0000CST 31 2359CST 0 0 Drought

Some rainfall events occurred during May, but with a heavy bias toward central Oklahoma near the I-35 corridor, where drought conditions continued to improve. Drought was eliminated for the first time since June 2012 in and around the Oklahoma City metro area, extending southeast toward Ada and Atoka. However, extreme to exceptional drought persisted over much of western Oklahoma, including some worsening along the border with the Texas Panhandle.

Kiowa County Roosevelt 01 1440CST 0 0 Hail (1.75)

Reported via nssl Shave Project. Kiowa County Roosevelt 01 1454CST 0 0 Hail (1.75)

Kiowa County Roosevelt 01 1458CST 0 0 Thunderstorm Wind (52EG)

Estimated by amateur radio operator. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Kiowa County Roosevelt 01 1500CST 0 0 Hail (1.75)

Pea to golfball size hail fell from 1500-1530 CST. Kiowa County 2 NE Cold Springs 01 1514CST 0 0 Hail (1.75)

Tillman County Manitou 01 1554CST 0 0 Hail (1.00)

Tillman County 1 E Frederick 01 1558CST 0 0 Hail (1.00)

A strong cold front pushed through the southern Plains during the day. Ahead of the front, thunderstorms developed in an environment of moderate to strong instability and weak deep-layer wind shear. These storms produced numerous reports of marginally-severe hail and a few damaging wind gusts.

Harper County 4 NE Laverne 07 1804CST 0 0 Hail (1.00)

Woodward County 8 ESE Mutual 07 2110CST 0 0 Thunderstorm Wind (59MG)

Modest instability and moisture existed beneath moderately strong wind shear, allowing for high-based supercells to form over parts of the southern High Plains during the late afternoon. While most of the activity remained in Kansas, a lone cell developed over the far eastern Oklahoma Panhandle and tracked eastward through portions of northwest Oklahoma. A severe hail report was received near Laverne. Note: The measured wind gust of 59 knots is equivalent to 68 mph.

Roger Mills County 4 NW Hammon 08 1430CST 0 0 Hail (1.00)

Dewey County 2 SSW Leedey 08 1520CST 0 0 Hail (2.00)

Spotters reported 2 hail at this time, as well as 1.5 hail 8 minutes earlier.

441 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Canadian County 9 WSW Calumet 08 1602CST 0 0 Hail (1.00)

Canadian County 1 SW Okarche 08 1606CST 0 0 Hail (1.25)

Custer County 2 WNW Thomas 08 1608CST 0 0 Hail (2.00)

Custer County 2 WNW Thomas 08 1635CST 0 0 Hail (2.00)

Canadian County 12 SSW Calumet 08 1637CST 0 0 Hail (2.00)

Dewey County 4 W Seiling 08 1645CST 0 0 Hail (1.00)

Dewey County 3 W Seiling 08 1655CST 0 0 Hail (2.50)

Blaine County 1 ESE Eagle City 08 1703CST 0 0 Hail (1.00)

Canadian County 9 S Calumet 08 1704CST 0 0 Hail (2.60)

Major County 1 S Chester 08 1706CST 0 0 Hail (1.75)

Canadian County 5 WSW El Reno 08 1710CST 0 0 Hail (1.50)

Major County 1 S Chester 08 1711CST 0 0 Hail (2.00)

Woodward County 1 S Quinlan 08 1713CST 0 0 Hail (1.50)

Canadian County 5 W El Reno 08 1731CST 0 0 Hail (1.75)

Major County 3 W Orion 08 1735CST 0 0 Hail (3.00)

Several reports of tennis ball to tea cup size hail in this area between 5:30-5:40pm LST.

Caddo County 4 S Washita 08 1745CST 0 0 Hail (1.00)

Caddo County 3 WNW Anadarko 08 1750CST 0 0 Hail (2.00)

442 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Caddo County 1 E Washita 08 1753CST 0 0 Hail (1.50)

Caddo County 6 S Ft Cobb 08 1755CST 0 0 Hail (1.75)

Woodward County Mooreland 08 1803CST 0 0 Hail (1.75)

Also reported 1 hail 8 minutes earlier. Caddo County 3 WNW Anadarko 08 1809CST 0 0 Hail (2.00)

Caddo County 1 S Gracemont 08 1817CST 0 0 Hail (2.75)

Also reported 1.5 hail 4 minutes earlier. Caddo County Binger 08 1836CST 0 0 Hail (1.75)

Caddo County 1 S Anadarko 08 1850CST 0 0 10.00K Thunderstorm Wind (52EG)

Power lines reported down in Anadarko. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Woods County 1 S Waynoka 08 1910CST 0 0 Hail (1.75)

Grady County 4 SE Minco 08 1918CST 0.1 50 0 0 Tornado (EF0)

Brief tornado reported by KWTV and a Spotter Network storm chaser.

Woodward County 9 N Quinlan 08 1927CST 0 0 Hail (1.75)

Stephens County 1 NNW Duncan 08 1930CST 0 0 Hail (1.00)

Stephens County 1 NW Sunray 08 1930CST 0 0 10.00K Thunderstorm Wind (52EG)

Power lines reported down along a country road. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Woods County 5 SW Hopeton 08 1951CST 0 0 Hail (1.25)

Cleveland County 3 W Moore 08 2050CST 0 0 Hail (2.25)

Reported half a mile east of 119th and Western. Also numerous reports of 1 hail around Moore between 8:43-8:53pm LST.

Ellis County 2 E Gage 08 2137CST 0 0 Hail (1.00)

443 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Oklahoma County 6 NW Edmond 08 2145CST 0 0 Hail (1.00)

Logan County 2 SSW Seward 08 2210CST 0 0 Hail (1.75)

Lincoln County 3 NW Chandler 08 2253CST 0 0 Hail (1.00)

A dryline was located from western Kansas through the Texas Panhandle during the afternoon, with a moist, unstable airmass in place over Oklahoma as a shortwave trough approached. Numerous thunderstorms developed during the mid- to late- afternoon hours over much of western and central Oklahoma, with some displaying supercell characteristics at times. Widespread large hail was reported, some significant, along with isolated damaging winds.

Kiowa County Snyder 09 1600CST 0.1 10 0 0 0.00K 0.00K Tornado (EF0)

A brief, weak landspout tornado was observed in Snyder. This tornado caused minor damage to a carport. The time of this tornado is estimated. Caddo County 3 ESE Carnegie 09 1636CST 0 0 Hail (1.00)

Caddo County 3 NNW Ft Cobb Res Dam 09 1644CST 0 0 Hail (1.50)

Jackson County 9 SSW Altus 09 1721CST 0.1 20 0 0 0.00K 0.00K Tornado (EF0)

A resident photographed a brief landspout tornado in Jackson County to the south-southwest of Altus. No damage was reported. Jackson County 4 NE Hess 09 1747CST 0 0 Hail (1.00)

Accompanied by heavy rain. Jackson County 3 NNE Hess 09 1747CST 0 0 Hail (1.00)

A weak frontal boundary was quasi-stationary near the I-40 corridor through the day, with moist and unstable air to its south. Several rounds of thunderstorms occurred throughout the afternoon and evening across the southern half of Oklahoma. Most were sub-severe, due to weak deep-layer wind shear, but a few produced marginally-severe hail.

Carter County Ratliff City 15 1326CST 0 0 Hail (1.00)

Carter County Ratliff City 15 1433CST 0 0 Hail (1.00)

Jefferson County Ryan 15 1705CST 0 0 Hail (1.00)

Pontotoc County 2 WNW Ada 15 1734CST 1735CST 0.5 50 0 0 20.00K Tornado (EF0)

An F0 tornado developed just west of the city limits Ada and moved northeast about one-half mile. A mobile home was damaged near the beginning of the path and trees were snapped or uprooted along the path.

444 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Pontotoc County 3 NW Stonewall 15 1745CST 0 0 70.00K Thunderstorm Wind (56EG)

A dozen power lines were downed, along with large tree limbs. Time estimated from radar.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Pontotoc County 2 NNW Ada 15 1745CST 0 0 60.00K Thunderstorm Wind (56EG)

One trailer collapsed and had its roof blown off at Sandy Creek Trailer Park. Seven other trailers also were damaged.

A weak upper-level low was centered over western Oklahoma, with moderately moist and unstable air in place over central and southern Oklahoma. Combined with substantial low-level shear, this allowed supercells to develop during the mid-afternoon hours, generally along and southeast of the I-44 corridor. A few hail reports were received, along with one tornado near Ada. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Harmon County 3 W Gould 18 0450CST 0 0 Thunderstorm Wind (60MG)

Mesonet station at Hollis reported a gust to 69 mph. Decaying thunderstorms over the Texas Panhandle moved into far southwest Oklahoma during the early morning hours of the 18th, resulting in severe wind gusts in Harmon County. Note: The measured wind gust of 60 knots is equivalent to 69 mph.

Jackson County 9 W Eldorado 18 1533CST 0 0 Hail (1.75)

Harmon County Gould 18 1545CST 0 0 Hail (2.50)

Relayed by local media (Kswo). Jackson County Friendship 18 1551CST 0 0 Hail (2.75)

Relayed by EM. Also reported 1.25 hail five minutes prior. Jackson County 1 W Warren 18 1551CST 0 0 Hail (2.50)

Continued for 20 minutes. Jackson County 1 W Warren 18 1611CST 0 0 Hail (2.50)

Golfball to tennis ball size hail was reported. Washita County 1 S Dill City 18 1615CST 0 0 Hail (1.75)

Harmon County Mc Queen 18 1627CST 0 0 Hail (1.25)

Jackson County 5 W Duke 18 1634CST 0 0 Hail (2.50)

On Highway 62 at the Jackson-Harmon Co. line. Custer County Arapaho 18 1644CST 0 0 Hail (1.25)

Beckham County 6 W Elk City 18 1700CST 0 0 Hail (2.50)

Public reported golfball to tennis ball size hail.

445 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Custer County 4 WSW Weatherford 18 1730CST 0 0 Thunderstorm Wind (54MG) Note: The measured wind gust of 54 knots is equivalent to 62 mph.

Blaine County 6 SSE Eagle City 18 1800CST 0 0 Thunderstorm Wind (51MG)

Mesonet site at Watonga measured a wind gust to 59 mph. Note: The measured wind gust of 51 knots is equivalent to 59 mph. Jackson County 3 E Blair 18 1814CST 0 0 Hail (2.00)

Kiowa County Lone Wolf 18 1823CST 0 0 Hail (1.00)

Comanche County 1 WSW Mt Scott 18 1900CST 0 0 Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Custer County 4 WSW Weatherford 18 1910CST 0 0 Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Canadian County 4 SW Concho 18 1915CST 0 0 Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Garfield County 1 E (END)Vance Afb Enid 18 1922CST 0 0 Thunderstorm Wind (56MG) Note: The measured wind gust of 56 knots is equivalent to 64 mph.

Major County 4 E Meno 18 1940CST 0 0 Thunderstorm Wind (58MG) Note: The measured wind gust of 58 knots is equivalent to 67 mph.

Jackson County Altus 18 1945CST 0 0 Hail (1.75)

Garfield County 3 SE Breckinridge 18 1950CST 0 0 Thunderstorm Wind (55MG) Note: The measured wind gust of 55 knots is equivalent to 63 mph.

Garfield County 3 WSW (WDG) Woodring Arpt 18 1950CST 0 0 Thunderstorm Wind (54MG)

Measured at Woodwring Airport. Note: The measured wind gust of 54 knots is equivalent to 62 mph. Jackson County Altus 18 1951CST 0 0 Hail (1.75)

At Park Lane and Heritage areas. Garfield County 1 E (END)Vance Afb Enid 18 2000CST 0 0 Hail (1.90)

446 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Jackson County (LTS)Altus Afb 18 2000CST 0 0 Hail (1.90)

Grady County 1 NW Minco 18 2005CST 0 0 1.00K Thunderstorm Wind (56EG)

One foot diameter tree was downed. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Garfield County Enid 18 2008CST 0 0 40.00K Thunderstorm Wind (56EG)

Many trees and power lines downed, and a police officer was injured by debris.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Garfield County 3 SE Breckinridge 18 2010CST 0 0 Thunderstorm Wind (54MG)

Mesonet measured wind gust to 62 mph. Also measured 58 mph five minutes earlier.

Note: The measured wind gust of 54 knots is equivalent to 62 mph. Oklahoma County Oklahoma City 18 2040CST 0 0 30.00K Thunderstorm Wind (56EG)

Many power lines were downed in the area around 150th and Penn.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Comanche County Elgin 18 2041CST 0 0 Hail (1.75)

Major County 4 E Meno 18 2050CST 0 0 Thunderstorm Wind (61MG)

Mesonet site at Lahoma measured a gust to 70 mph. Also measured gusts of 57-58 mph at several times over the preceding hour. Note: The measured wind gust of 61 knots is equivalent to 70 mph. Comanche County 3 SSW Lawton 18 2213CST 0 0 Hail (1.25)

At I-44 and Highway 36. Comanche County 1 WSW Lawton 18 2227CST 0 0 Hail (1.00)

Dewey County 4 WNW Camargo 18 2250CST 0 0 Thunderstorm Wind (52MG)

A classic late Spring severe weather setup unfolded over the southern Plains. Rich low-level moisture and very warm temperatures contributed to high instability, while an incoming shortwave trough yielded deep-layer shear sufficient for supercells during the afternoon. Owing to the large spread between surface temperatures and dew points over most of Oklahoma, tornadoes did not occur, but significant hail was common with the storms early in their life cycles over far western Oklahoma. Later in the evening, storm outflows consolidated in some cases to produce more linear convection, transitioning the reports toward severe wind gusts farther east. Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Alfalfa County Cherokee 19 1445CST 0 0 Hail (1.00)

Oklahoma County 7 WNW Edmond 19 1447CST 0 0 Hail (1.00)

Reported at McArthur and Coffee Creek Rd.

447 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Oklahoma County 9 WNW Edmond 19 1501CST 0 0 Hail (1.50)

Grant County 6 SSW Wakita 19 1505CST 0 0 Hail (1.75)

Nescatunga near Highway 11. Oklahoma County 5 W Edmond 19 1515CST 0 0 Hail (1.25)

Oklahoma County 2 NNE The Village 19 1515CST 0 0 10.00K Thunderstorm Wind (52EG)

Powerlines down at Penn and Memorial. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Woodward County 18 N Mooreland Arpt 19 1515CST 0 0 Thunderstorm Wind (53MG) Note: The measured wind gust of 53 knots is equivalent to 61 mph.

Oklahoma County 4 NNW Arcadia Lake 19 1517CST 0 0 Hail (1.00)

At I-35 and Seward. Oklahoma County Edmond 19 1518CST 0 0 Hail (1.50)

At 178th and Western. Oklahoma County 2 S Edmond 19 1522CST 2 WSW Arcadia Lake 1530CST 4.5 900 0 0 Tornado (EF1)

A tornado touched down in Edmond just northwest of 33rd Street and Boulevard Street. The tornado moved east just north of 33rd Street causing primarily EF0 damage, primarily to trees. The tornado turned northeast just before crossing Interstate 35 with isolated EF1 damage beginning just west of Interstate 35. One home north of E 15th Street and east of Interstate 35 suffered significant roof damage just before the tornado dissipated north of 15th Street and Air Depot Blvd.

Oklahoma County 1 ENE Arcadia Lake 19 1533CST 1534CST 0.54 200 0 0 Tornado (EF1)

A brief tornado was observed just northeast of Lake Arcdia. The tornado damaged a power pole along Post Road just north of State Highway 66, otherwise no known damage occurred. Oklahoma County 4 NW Arcadia Lake 19 1537CST 0 0 Hail (2.60)

Oklahoma County 3 NW Luther 19 1541CST 1554CST 5 1000 0 0 Tornado (EF2)

A tornado touched down just south of Triple XXX Road and Coffee Creek Road to the northwest of Luther and began to move east-northeast. The tornado began producing EF2 damage soon after crossing Luther Road where an outbuilding was destroyed. At least two mobile homes were destroyed as the tornado continued to the east-northeast. The tornado crossed Waterloo Road and moved into Logan County.

Oklahoma County 4 N Luther 19 1551CST 0 0 Hail (2.75)

448 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Logan County 10 SE Meridian 19 1554CST 1556CST 0.84 1000 0 0 Tornado (EF2)

Tornado continued tracking ENE, producing tree damage as it clipped the extreme southeast corner of Logan County before moving into Lincoln County. Grady County 3 ENE Middleberg 19 1555CST 0 0 Hail (2.00)

Lincoln County 2 SW Fallis 19 1556CST 3 SE Tryon 1624CST 15 1200 0 0 Tornado (EF3)

The large tornado continued to move northeast from Logan County into Lincoln County. The tornado passed just southeast of Fallis and then clipped the southeastern portion of Carney. It produced EF3 damage to a number of homes from just south of Carney into the southeast portion of the town. The tornado finally dissipated about 3 miles southeast of Tryon. Motions observed visually in this tornado suggest that the tornado was likely stronger then EF3 in western Lincoln County, but no damage indicators were available that would have supplied a rating higher than EF3 in this area.

Cleveland County 1 WSW (OUN)Norman West 19 1602CST 0 0 Hail (1.25)

At 36th Nw and Rock Creek Rd. Mcclain County 2 S Newcastle 19 1605CST 0 0 Hail (1.00)

Mcclain County 1 N Blanchard 19 1610CST 0 0 Hail (1.25)

At County Line Rd. and Highway 62. Cleveland County 2 SW Moore 19 1625CST 0 0 Hail (1.50)

Cleveland County Norman 19 1630CST 0 0 Hail (3.00)

Tea cup size hail reported at 12th and Tecumseh. Also golfball size reported at 36th and Tecumseh, and 1.5 inch hail reported at Westheimer Airport. Mcclain County 1 W Newcastle 19 1639CST 0 0 Hail (1.75)

Cleveland County 4 NE Norman 19 1640CST 0 0 Hail (2.00)

Cleveland County 5 WNW Moore 19 1645CST 0 0 Hail (1.00)

Cleveland County Norman 19 1647CST 0 0 Hail (2.50)

Reported at 36th Ave. Nw and Tecumseh. Mcclain County Newcastle 19 1700CST 0 0 Hail (1.39)

449 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Cleveland County 5 WNW Lake Thunderbird Da 19 1700CST 4 ESE Stella 1720CST 10.5 1150 0 0 Tornado (EF3)

A long track tornado began in Cleveland County in east Norman to the north of Lake Thunderbird along 96th Avenue to the south of Tecumseh Road. The tornado moved northeast, crossing the eastern arm of Lake Thunderbird. A number of homes were significantly damaged as the tornado moved east-northeast through neighborhoods from near Indian Hills Road and 168th Avenue SE to the Pottawatomie County line. The tornado then moved into Pottawatomie County.

Cleveland County Moore 19 1702CST 0 0 Hail (1.00)

Cleveland County 3 NNE Moore 19 1712CST 0 0 Hail (1.50)

Pottawatomie County 4 NNW Pink 19 1720CST 4 WSW Aydelotte 1750CST 12.5 1500 2 0 Tornado (EF4)

The large tornado moved east-northeast into Pottawatomie County then curving northeast as it approached State Highway 102. The tornado moved through a mobile home park north of Independence Road after crossing State Highway 102. Just northeast of the mobile home park, a permanent home was destroyed with much of the debris blown well to the northeast. It continued northeast crossing Interstate 40 near the intersection of US-177, then curved north-northeast finally dissipating near Wolverine Road and Coker Road. One fatality occurred in the mobile home park, and another man was killed in his vehicle. M79MH, M76VE

Photo of tornado west of Shawnee. Photo taken by Bill Hark. Oklahoma County 1 N (TIK)Tinker Afb 19 1721CST 0 0 Hail (1.00)

Oklahoma County 1 E Midwest City 19 1728CST 0 0 Hail (1.00)

Reported at 29th and Douglas. Oklahoma County 1 S Choctaw 19 1730CST 0 0 Hail (1.25)

450 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Pottawatomie County 4 SSE Dale 19 1740CST 1743CST 2 30 0 0 Tornado (EF0)

An anticyclonic tornado was observed in RaXPol mobile radar data and an area of tree damage was observed by the storm survey team. Pottawatomie County 4 NE Johnson 19 1759CST 1800CST 0.5 250 0 0 Tornado (EF0)

A tornado began about just south of the Pottawatomie-Lincoln County line damaging some trees before moving into Lincoln County. Lincoln County 6 WSW Prague 19 1800CST 1812CST 6.75 450 0 0 Tornado (EF2)

This tornado moved into Lincoln County from Pottawatomie County and affect areas to the west and north of Prague. Large sctions of roof were removed from two homes northwest of Prague.

Pottawatomie County 4 NNW Shawnee 19 1810CST 0 0 Thunderstorm Wind (53MG) Note: The measured wind gust of 53 knots is equivalent to 61 mph.

Lincoln County 4 NE Prague 19 1817CST 1820CST 2.12 300 0 0 Tornado (EF0)

A tornado touched down about 3.5 miles northeast of Prague and caused tree damage before moving into Okfuskee County in the Tulsa County Warning Area (see Storm Data for eastern Oklahoma for information about the continuation of this tornado).

Lincoln County 6 N Prague 19 1824CST 0 0 Hail (1.00)

Kay County 8 E Newkirk 19 1905CST 0 0 Thunderstorm Wind (51EG)

Mesonet station at Newkirk recorded a gust 59 mph. A moist and very unstable airmass was in place over the eastern two thirds of Oklahoma, to the east of a dryline. Additionally, strong wind shear was present as a mid-level jet streak carved into the southern Plains. Several supercells developed along the dryline during the mid and late afternoon hours, producing large hail. Two supercells in central Oklahoma also produced tornadoes, including a few significant, damaging tornadoes. Note: The estimated wind gust of 51 knots is equivalent to 59 mph. Pontotoc County 1 ENE Ada 20 1130CST 0 0 Hail (1.25)

Grady County 3 S Rush Springs 20 1254CST 0 0 Hail (1.75)

Grady County 1 S Rush Springs 20 1256CST 0 0 Hail (1.00)

Stephens County 6 WNW Duncan 20 1302CST 0 0 Hail (1.00)

Canadian County 1 NW Yukon 20 1327CST 0 0 Hail (3.25)

451 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Oklahoma County (OKC)Will Rogers Apt 20 1328CST 0 0 Hail (1.00)

Grady County 3 NE Bridge Creek 20 1345CST 1347CST 0 0 5.00K 0.00K Thunderstorm Wind (65EG)

An area of wind damage occurred in far northwestern Grady County into northeastern McClain County before the development of the Newcastle-Moore tornado. In Grady County, the damage was confined to trees.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Mcclain County 4 W Newcastle 20 1347CST 1356CST 0 0 75.00K 0.00K Thunderstorm Wind (78EG)

An area of wind damage occurred in far northeastern Grady County into northwestern McClain County before the development of the Newcastle-Moore tornado. Tree damage occurred throughout this path, and a number of homes and mobile homes received damage in McClain County. Note: The estimated wind gust of 78 knots is equivalent to 90 mph. Mcclain County 4 N Newcastle 20 1356CST 1404CST 1.85 1280 0 0 Tornado (EF4)

The violent Newcastle-Moore tornado was first observed developing about one-half mile south of State Highway 37 in northwest Newcastle to the east of Rockwell Avenue. EF4 damage was observed soon after the tornado crossed State Highway 37. The tornado continued to expand in size as it approached the Canadian River and moved into Cleveland County.

Stephens County 7 SSE Marlow 20 1358CST 6 NE Duncan 1401CST 1 30 0 0 0.00K 0.00K Tornado (EF0)

A brief tornado was reported via Spotter Network near Marlow. No damage was reported and the tornado lasted a very short time. Cleveland County 7 WSW Moore 20 1404CST 3 WNW Stanley Draper Lake Dam 1435CST 12 1900 24 0 2.00B 0.00K Tornado (EF5)

The violent Newcastle-Moore tornado moved into Cleveland County from McClain County as it moved northeast across the Canadian River near Interstate 44. The tornado then turned more east and then east-northeast after crossing Interstate 44. Violent EF4 damage was again observed as it began to move into progressively higher density residental areas approaching May Avenue. The center of the large tornado path passed near SW 149th Street and Western Avenue. After crossing Western Avenue, numerous buildings were destroyed and horses killed at Orr Family Farm. Two storage tanks estimated to weigh approximately 10 tons were lifted from Orr Family Farm and landed about one-half mile east. Moving east, the tornado destroyed much of Briarwood Elementary School, where the NWS storm survey team rated damage as EF5. Despite the destruction of this elementary school during school hours, no fatalities occurred at the school. As the tornado continued to move east and east- northeast, it moved through much more densely populated suburban neighborhoods of southwest Oklahoma City and Moore where violent destruction was widespread. The width of EF4 and greater damage was up to 250 yards wide as the tornado moved through neighborhoods east of Western Avenue. The first two fatalities occurred in a house in the neighborhood just east of Briarwood Elementary, with another fatality in a house as the tornado approached Santa Fe Avenue.

After crossing Santa Fe Avenue, the tornado moved through more suburban neighborhoods and toward Plaza Towers Elementary School. Damage to the school was extensive and seven children were killed when a wall collapsed at the school. Nine other people were killed in eight different neighborhood homes within one-quarter mile of Plaza Towers Elementary, most occurring just south of the school. The tornado turned northeast as it approached Telephone Road, made a loop near the intersection of Telephone Road and 4th Street, then moved southeast crossing the interstate. Three people were killed when a convenience store along Telephone Road was destroyed. Crossing Telephone Road, the tornado inflicted significant damage to the Moore Medical Center, a post office and numerous businesses along Telephone Road and Interstate 35. Although the tornado was more narrow after crossing Interstate 35, it continued to produce EF4 damage in neighborhoods east of the interstate as it curved east and then again east- northeast. One fatality occurred at a business just east of the interstate, and one final fatality occurred in a home between Eastern Avenue and Bryant Avenue. Consistent EF4 damage continued until the tornado passed SE 4th Street just east of Bryant Avenue. Moving east from Bryant, the tornado continued to produce EF2 damage with isolated EF4 damage noted. The density of housing also decreased east of Bryant as the tornado moved east and east-northeast before dissipating east of Air Depot Blvd. between SE 119th Street and SE 134th Street in southeast Oklahoma City.

452 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast

Overall, over 300 homes experienced EF4/EF5 damage along the tornado path. F9SC, F29PS, F49PS, F38PH, M9SC, M0PS, F90PH, M54PH, M65PH, M39PH, M63BU, M8SC, M9SC, F51PH, F9SC, F9SC, F9SC, M46PH, F45PH, F40PH, F70PH, F7PH, F4PH, F49PH Oklahoma County 2 SW Valley Brook 20 1406CST 0 0 Hail (2.50)

Stephens County 4 SSE Marlow 20 1407CST 4 W Bray 1422CST 4 200 0 0 20.00K 0.00K Tornado (EF1)

Several storm chasers and spotters observed a tornado that developed southeast of Marlow, and moved northeast to between Marlow and Bray. Minor damage to trees and power lines was reported. No injuries or fatalities occurred.

Oklahoma County (OKC)Will Rogers Apt 20 1512CST 0 0 Hail (2.00)

Reported at Will Rogers World Airport. Jefferson County Waurika 20 1515CST 0 0 Hail (1.00)

Garvin County 1 N Whitebead 20 1536CST 0 0 Hail (1.75)

Lincoln County 6 NE Meeker 20 1540CST 3 SSE Sparks 1542CST 1.21 100 0 0 0.00K 0.00K Tornado (EF0)

Several reports were received of a brief tornado northeast of Meeker. No damage was reported.

Jefferson County Cornish 20 1545CST 0 0 Hail (2.50)

Garvin County 6 W Stratford 20 1552CST 0 0 Hail (1.75)

Murray County 2 SSE Turner Falls 20 1643CST 0 0 Hail (1.00)

Carter County Gene Autry 20 1645CST 0 0 25.00K Thunderstorm Wind (61EG)

Roof blown off of Old Gene Autry Gym. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Johnston County 2 WNW Wapanucka 20 1739CST 0 0 1.00K Thunderstorm Wind (70MG)

A spotter reported branches down in the area. Note: The measured wind gust of 70 knots is equivalent to 81 mph. Coal County 4 WSW Lehigh 20 1749CST 1757CST 5.9 250 0 0 30.00K 0.00K Tornado (EF1)

Emergency management and spotters reported a tornado near Lehigh. Damage to trees and outbuildings occurred. Damages estimated.

453 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Bryan County 4 N Durant Eaker Arpt 20 1900CST 0 0 15.00K Thunderstorm Wind (56EG)

Trees and power lines reported down on the west side of Durant.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Carter County 2 NNE Lone Grove 20 1905CST 0 0 Thunderstorm Wind (54MG)

Mesonet WNW of Ardmore reported a gust to 62 mph. Note: The measured wind gust of 54 knots is equivalent to 62 mph. Love County 1 S Marietta 20 1924CST 0 0 Hail (1.00)

Marshall County 4 NNE Woodville 20 2009CST 0 0 Hail (2.75)

Bryan County 1 W Cobb 20 2058CST 0 0 Hail (1.00)

At the intersection of SH-22 and Albert Pike Rd. Comanche County Geronimo 20 2125CST 0 0 Hail (1.75)

Stephens County 1 NNW Duncan 20 2226CST 0 0 Hail (1.25)

At the Stephens Co. Fairgrounds. Garvin County Wynnewood 20 2227CST 0 0 Hail (1.00)

Public reported dime to quarter size hail covering the ground.

Stephens County 3 N Empire City 20 2234CST 0 0 Hail (1.75)

Reported via Kswo. Pontotoc County 1 ENE Ada 20 2326CST 0 0 Hail (1.00)

A tornado outbreak occurred during the afternoon and evening hours of the 20th. Several tornadoes occurred from central Oklahoma down through south central Oklahoma near the Red River. The strongest tornado touched down near Newcastle and traveled through Moore and south Oklahoma City. This tornado caused catastrophic damage in these areas, with a maximum rating of EF-5. The tornado claimed 24 lives and caused billions of dollars in damage. In addition to the tornadoes, large hail and damaging winds cause damage in many areas.

Pontotoc County 1 ENE Ada 20 2330CST 0 0 0.00K 0.00K Hail (1.25)

No damage was reported. A shortwave trough progressed through the southern Plains during the first part of the day, resulting in thunderstorm development over west Texas early in the morning. These storms intensified and expanded in coverage as they moved eastward into Oklahoma, with isolated reports of large hail in the most intense cores.

Mcclain County 1 E Purcell 21 0300CST 0 0 Hail (1.00)

454 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Caddo County 2 W Cyril 21 0417CST 0 0 Thunderstorm Wind (67MG) Note: The measured wind gust of 67 knots is equivalent to 77 mph.

Caddo County Cyril 21 0420CST 0 0 10.00K Thunderstorm Wind (56EG)

Trees damaged and power lines down. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Caddo County Cyril 21 0425CST 0 0 Hail (1.00)

Caddo County Cement 21 0426CST 0 0 15.00K Thunderstorm Wind (61EG)

Roof was blown off building near Highway 277. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Grady County Ninnekah 21 0446CST 0 0 Hail (1.75)

Caddo County Cement 21 0449CST 0 0 10.00K Thunderstorm Wind (56EG)

Trees and power lines were reported down. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Grady County 2 NNW Ninnekah 21 0450CST 0 0 Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Greer County 1 E Reed 21 0853CST 0 0 Hail (1.00)

Greer County 3 SSE Brinkman 21 0900CST 0 0 Hail (1.75)

Kiowa County 1 S Lone Wolf 21 0916CST 0 0 Hail (1.75)

A tornado outbreak occurred during the afternoon and evening hours of the 20th. Several tornadoes occurred from central Oklahoma down through south central Oklahoma near the Red River. The strongest tornado touched down near Newcastle and traveled through Moore and south Oklahoma City. This tornado caused catastrophic damage in these areas, with a maximum rating of EF-5. The tornado claimed 24 lives and caused billions of dollars in damage. In addition to the tornadoes, large hail and damaging winds cause damage in many areas.

Greer County Granite 21 0917CST 0 0 Hail (1.25)

Kiowa County Lone Wolf 21 0919CST 0 0 Hail (1.75)

Caddo County Eakly 21 1014CST 0 0 Hail (1.75)

Caddo County Binger 21 1020CST 0 0 Hail (1.75)

455 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Canadian County 13 SSW Calumet 21 1040CST 0 0 Hail (1.50)

Atoka County Atoka 21 1308CST 1508CST 0 0 0.00K 0.00K Flash Flood

Flooding and road closures reported at the 900 block of W 6th St. and the 700 block of E 6th St. No damage was reported.

Coal County 5 NE Cottonwood 21 1325CST 1425CST 0 0 0.00K 0.00K Flash Flood

Water over highway 37 at the Keel Creek bridge. No damage was reported.

A shortwave trough progressed through the southern Plains during the first part of the day, resulting in thunderstorm development over west Texas early in the morning. These storms intensified and expanded in coverage as they moved eastward into Oklahoma, with isolated reports of large hail in the most intense cores.

Canadian County 1 NW Yukon 23 0530CST 0 0 Hail (1.00)

Cleveland County 9 W Moore 23 0542CST 0 0 Hail (1.75)

At 104th SW and Council. Oklahoma County 2 SSE Wheatland 23 0555CST 1 SE (OKC)Will Rogers Apt 0855CST 0 0 30.00K 0.00K Flash Flood

Reports of water over roadways at several locations including S Rockwell and SW 89th, SW 59th and S County Line Rd, and S Portland and SW 89th. Sinkhole opened at intersection of SW 74th and S Rockwell Ave, making the road impassable.

Mcclain County Newcastle 23 0602CST 0 0 Thunderstorm Wind (56EG)

Estimated 65 mph. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Garvin County Pauls Valley 23 0649CST 0 0 Hail (1.00)

Dime to quarter size hail reported. Garvin County Pauls Valley 23 0653CST 0 0 Hail (1.75)

Observed 1 mile east of I-35. Also 1.5 hail reported two minutes later.

Oklahoma County Wheatland 23 0700CST 1000CST 0 0 0.00K 0.00K Flash Flood

County Line Road flooded between SW 44th and 59th St. No damage reported.

Murray County Davis 23 0735CST 0 0 Hail (2.50)

456 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Murray County 1 W Sulphur 23 0750CST 0 0 Hail (1.00)

Canadian County 3 NE Mustang 23 0800CST 1100CST 0 0 0.00K 0.00K Flash Flood

Flooding reported near SW 44th St. and Morgan Rd between 44th and 59th St. No damage reported.

Canadian County 3 SSE Yukon 23 0800CST 0 0 75.00K 0.00K Flash Flood Flooding along Sara Rd between SW 15th St. and 29th St. Several cars stranded or inundated. No injuries reported. Damages estimated. Carter County Dickson 23 0815CST 0 0 Thunderstorm Wind (56EG)

Estimated gust of 65 mph. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Carter County Dickson 23 0816CST 0 0 Thunderstorm Wind (56EG)

Estimated gust to 65 mph. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Canadian County 1 NW Yukon 23 0835CST 0 0 Hail (1.00)

Bryan County 3 W Mead 23 0839CST 0 0 0.10K Thunderstorm Wind (50EG)

Small tree limbs reported down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cleveland County 3 SE Norman 23 0900CST 4 N Noble 1200CST 0 0 0.00K 0.00K Flash Flood

Water over road at S Highway 9 and 36th Ave SE in Norman. No damage reported.

Cleveland County 3 S Moore 23 0900CST 3 NNW (OUN)Norman Westheimer Arpt 1200CST 0 0 0.00K 0.00K Flash Flood

Water over roadway at Indian Hills and 24th Ave NW north of Norman. No damage reported.

Cleveland County 2 N (OUN)Norman Westheimer Arpt 23 0900CST 0 0 0.00K 0.00K Flash Flood Flash flooding along 12th St between Franklin and Tecumseh Rd. No damage reported.

Moderate northwest flow aloft existed over Oklahoma, with a diffuse frontal boundary extending west-east across the center of the state. Elevated thunderstorms developed in the early morning before sunrise, primarily near the I-35 corridor, and trained over a region roughly extending from Kingfisher to Durant. Damaging winds and marginally severe hail were reported, along with some flash flooding.

Roger Mills County 5 NE Dempsey 24 1830CST 0 0 Thunderstorm Wind (56MG)

Mesonet site at Cheyenne measured a gust to 64 mph. Note: The measured wind gust of 56 knots is equivalent to 64 mph.

457 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Roger Mills County 1 W Roll 24 1853CST 0 0 Hail (1.00)

Very strong instability combined with marginal wind shear allowed intense multicell storms to develop across western and southern Oklahoma during the afternoon and evening. One storm produced severe hail and wind while tracking northeastward across Roger Mills Co. Greer County 7 N Reed 27 1730CST 0 0 Thunderstorm Wind (61EG)

Law Enforcement estimated 70 mph gusts. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Greer County 1 E Reed 27 1733CST 0 0 Hail (1.00)

Beckham County 4 ESE Erick 27 1745CST 0 0 Thunderstorm Wind (56MG)

Mesonet site at Erick measured a gust to 65 mph. Also gusts to 60 mph and 55 mph at the next two (5-minute) observations.

Note: The measured wind gust of 56 knots is equivalent to 64 mph. Beckham County 1 E Sayre 27 1758CST 0 0 Thunderstorm Wind (52EG)

Fire Department estimated gusts to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Roger Mills County 5 NE Dempsey 27 1810CST 0 0 Thunderstorm Wind (56MG)

Mesonet site SW of Cheyenne measured a gust to 64 mph. Note: The measured wind gust of 56 knots is equivalent to 64 mph. Washita County 1 SW Canute 27 1815CST 0 0 10.00K Thunderstorm Wind (56EG)

A roof was blown off a barn SW of Canute. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Washita County 5 SSW (CSM)Clinton Sherman 27 1817CST 0 0 Hail (1.75)

Custer County 4 ENE Clinton 27 1818CST 0 0 15.00K Thunderstorm Wind (61MG)

Measured at KCSM. Moderate damage to airport. Doors were blown off a hangar, as well as windows in the control tower. A 400 lb. round bail was also blown into the ceilometer of the ASOS.

Note: The measured wind gust of 61 knots is equivalent to 70 mph. Washita County 1 W Burns Flat 27 1818CST 0 0 Thunderstorm Wind (61MG)

Measured at Clinton-Sherman Airport. Note: The measured wind gust of 61 knots is equivalent to 70 mph. Washita County Burns Flat 27 1822CST 0 0 Hail (1.75)

Custer County 3 E Clinton 27 1836CST 0 0 40.00K Thunderstorm Wind (65EG)

A 60x30 ft. metal roof was blown off the Whitedog Hill Restaurant near I-40 mile marker 70. Billboard also damaged near the same location. Note: The estimated wind gust of 65 knots is equivalent to 75 mph.

458 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Washita County 3 N Bessie 27 1840CST 0 0 Hail (1.75)

Custer County 4 E Clinton 27 1842CST 0 0 30.00K Thunderstorm Wind (56EG)

Five power poles down 1 mile N of I-40 exit 71. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Custer County 2 NE Clinton 27 1842CST 0 0 5.00K Thunderstorm Wind (56EG)

Minor damage to a hangar at CLK airport. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Custer County Clinton 27 1842CST 0 0 2.00K Thunderstorm Wind (61EG)

Two trees of around 10 diameter were snapped. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Custer County 2 NE Clinton 27 1855CST 0 0 Thunderstorm Wind (68MG) Note: The measured wind gust of 68 knots is equivalent to 78 mph.

Dewey County Oakwood 27 1912CST 0 0 Hail (1.25)

The Oakwood Fire Dept. reported quarter to half dollar size hail.

High-based supercells developed over the Texas Panhandle during the afternoon, then moved northeast into western Oklahoma by early evening. Numerous reports of severe winds (some significant) and large hail were received, particularly around the Elk City-Clinton area. Harper County 1 S Buffalo 28 1620CST 0 0 Hail (1.00)

Harper County 11 NW Buffalo 28 1745CST 0 0 Hail (1.75)

Supercells developed during the late afternoon over southwest Kansas, then progressed east-southeastward into Oklahoma, taking on a more linear structure. A few reports of large hail were received over northwest Oklahoma.

Jackson County (LTS)Altus Afb 29 1430CST 0 0 10.00K Thunderstorm Wind (61MG)

Gust to 70 mph measured at Altus AFB. A gust to 71 mph was also measured six minutes later by a trained spotter in Altus. Power lines were downed in the city. Note: The measured wind gust of 61 knots is equivalent to 70 mph. Jackson County Altus 29 1436CST 0 0 0.00K 0.00K Thunderstorm Wind (62MG)

No damage was reported. Note: The measured wind gust of 62 knots is equivalent to 71 mph. Jackson County Altus 29 1440CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Several power lines and power poles downed. Damage estimated.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

459 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Canadian County 6 W Calumet 29 1600CST 0.2 20 0 0 20.00K 0.00K Tornado (EF1)

A tornado touched down briefly about 6 miles west of Calumet destroying a barn and damaging a house. Damage was estimated. Cotton County 4 NW Walters 29 1608CST 0 0 20.00K 0.00K Thunderstorm Wind (61EG)

A large barn was destroyed. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Cotton County 4 NE Walters Arpt 29 1610CST 0 0 20.00K Thunderstorm Wind (69MG)

Mesonet site at Walters measured a gust to 79 mph. A 24x30 ft. barn was airborne near the same location.

Note: The measured wind gust of 69 knots is equivalent to 79 mph. Kingfisher County Okarche 29 1619CST 0 0 Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Caddo County 2 W Cyril 29 1623CST 0 0 Thunderstorm Wind (56MG) Note: The measured wind gust of 56 knots is equivalent to 64 mph.

Caddo County 3 SSE Stecker 29 1625CST 0 0 Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Roger Mills County 5 NE Dempsey 29 1625CST 0 0 Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Caddo County 1 S Anadarko 29 1630CST 0 0 15.00K Thunderstorm Wind (56EG)

Power poles down on the east side of Anadarko. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Comanche County 2 ESE Lawton 29 1630CST 0 0 1.00K Thunderstorm Wind (61EG)

Observer reported small limbs down, along with nickel size hail.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Canadian County Okarche 29 1655CST 0 0 Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Grady County 2 SW Minco 29 1700CST 0 0 Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Logan County 4 NE Lovell 29 1700CST 0 0 Thunderstorm Wind (57MG) Note: The measured wind gust of 57 knots is equivalent to 66 mph.

460 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Woodward County 2 WSW Woodward 29 1710CST 0 0 Thunderstorm Wind (53MG) Note: The measured wind gust of 53 knots is equivalent to 61 mph.

Woodward County Fort Supply 29 1712CST 0 0 Thunderstorm Wind (61EG)

A storm chaser estimated 70 mph winds in Ft. Supply. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Dewey County 3 N Putnam 29 1720CST 0 0 Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Oklahoma County 1 E Midwest City 29 1737CST 0 0 Thunderstorm Wind (61EG)

Public estimated gusts to 70 mph. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Woodward County 18 N Mooreland Arpt 29 1740CST 0 0 Thunderstorm Wind (53MG) Note: The measured wind gust of 53 knots is equivalent to 61 mph.

Cleveland County 2 SSW Norman 29 1742CST 0.1 10 0 0 40.00K 0.00K Tornado (EF1)

A tornado touched down very briefly in the southwest portion of the city of Norman, damaging a home near Fairfield Drive and Belmont Drive. No other damage occurred. The damage amount was estimated.

Beckham County 6 S Erick 29 1745CST 0 0 Hail (1.75)

Beckham County 7 SSW Erick 29 1754CST 0 0 Hail (2.90)

Custer County 4 NW Foss Res Dam 29 1755CST 0 0 Thunderstorm Wind (59MG) Note: The measured wind gust of 59 knots is equivalent to 68 mph.

Kay County 4 SSE Blackwell 29 1755CST 0 0 Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Beckham County 1 SE Elk City 29 1805CST 0 0 Hail (1.00)

Payne County Stillwater 29 1808CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

No damage was reported. Note: The measured wind gust of 53 knots is equivalent to 61 mph. Payne County Stillwater 29 1810CST 0 0 Thunderstorm Wind (53MG)

Mesonet site and KSWO both reported 61 mph gusts within two minutes of each other.

Note: The measured wind gust of 53 knots is equivalent to 61 mph.

461 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Harmon County 6 N Madge 29 1812CST 0 0 Hail (2.75)

Greer County 12 NW Reed 29 1815CST 0 0 Hail (2.00)

Beckham County 12 S Erick 29 1816CST 0 0 Hail (2.00)

Beckham County 4 S New Liberty 29 1818CST 0 0 Hail (1.00)

Greer County 12 NW Reed 29 1820CST 0 0 Hail (2.50)

Beckham County 12 S Erick 29 1821CST 1823CST 0.75 150 0 0 0.00K 0.00K Tornado (EF0)

A storm chaser observed a weak tornado in far southern Beckham County near the Harmon and Greer County intersection. A funnel was observed with a rotating column of dust observed. The tornado produced no known damage.

Beckham County Erick 29 1832CST 0 0 2.00K Thunderstorm Wind (52EG)

Numerous large tree limbs reported down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jefferson County 1 N Ringling 29 1850CST 0 0 Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Custer County 4 NW Foss Res Dam 29 1925CST 0 0 Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Custer County 1 SE Weatherford 29 2100CST 0 0 Hail (1.00)

Washita County 3 N Corn 29 2100CST 0 0 Hail (1.50)

Carter County 1 E Ardmore 29 2135CST 0 0 Thunderstorm Wind (57MG) Note: The measured wind gust of 57 knots is equivalent to 66 mph.

Pontotoc County 5 SW Fittstown 29 2330CST 0 0 Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Bryan County 1 N Silo 30 0655CST 0 0 Hail (1.00)

A large upper trough was ejecting out of the Rockies, with a dryline extending from western Nebraska through the Texas Panhandle. Strong wind shear and instability were in place over the southern Plains. Supercells developed along the dryline during the early to mid afternoon, then progressed eastward into western Oklahoma, producing hail, wind and isolated tornadoes. Additional severe thunderstorms developed farther east over western and central Oklahoma during the mid to late afternoon, with severe wind and hail reported.

462 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Caddo County 3 S Anadarko 30 1242CST 0 0 0.00K 0.00K Hail (1.75)

Caddo County 3 SW Anadarko 30 1305CST 0 0 0.00K 0.00K Hail (1.50)

Grady County Verden 30 1320CST 0 0 0.00K 0.00K Hail (1.00)

Payne County 1 SSW Perkins 30 1408CST 1409CST 0.26 100 0 0 0.00K 0.00K Tornado (EF0)

Tornado reported via KWTV. Tornado was brief and only lasted 30 seconds. No damage was reported and the location was estimated. Comanche County 2 WSW Elgin 30 1413CST 0 0 Hail (1.75)

Comanche County 2 N Elgin 30 1415CST 0 0 0.00K 0.00K Hail (1.00)

Comanche County 3 NE Lake Ellsworth Dam 30 1415CST 0 0 0.00K 0.00K Hail (1.00)

Payne County 4 SW Ripley 30 1415CST 1416CST 0.71 100 0 0 0.00K 0.00K Tornado (EF0)

Tornado was reported by KWTV. No damage was reported. Payne County 1 ESE Ripley 30 1426CST 1430CST 1.64 200 0 0 0.00K 0.00K Tornado (EF0)

Tornado was reported by a storm chaser via Spotter Network and by broadcast media. A large revolving bowl wall cloud with debris was noted. No damage was reported. Comanche County Fletcher 30 1430CST 0 0 0.00K 0.00K Hail (1.00)

Payne County 4 NNW Cushing 30 1437CST 1438CST 0.37 50 0 0 0.00K 0.00K Tornado (EF0)

Tornado was reported via Spotter Network. Brief spin up tornado near Cushing. No damage was reported.

Caddo County 2 ESE Washita 30 1440CST 0 0 Hail (1.25)

Comanche County 2 NNE Elgin 30 1440CST 0 0 Hail (1.75)

Comanche County 6 ENE Fletcher 30 1440CST 0 0 Hail (1.75)

Comanche County 2 ENE Elgin 30 1440CST 0 0 Hail (1.50)

463 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Comanche County 4 E Fletcher 30 1440CST 0 0 Hail (1.75)

Comanche County 1 W Fletcher 30 1440CST 0 0 Hail (1.50)

Comanche County 1 E Fletcher 30 1440CST 0 0 0.00K 0.00K Hail (1.00)

Comanche County 2 E Fletcher 30 1440CST 0 0 0.00K 0.00K Hail (1.00)

Comanche County 4 NNE Sterling 30 1445CST 0 0 0.00K 0.00K Hail (1.00)

Comanche County 5 NE Sterling 30 1445CST 0 0 0.00K 0.00K Hail (1.00)

Comanche County 6 NNE Sterling 30 1445CST 0 0 0.00K 0.00K Hail (1.00)

Comanche County 4 E Fletcher 30 1450CST 0 0 Hail (1.50)

Comanche County 6 NNE Sterling 30 1450CST 0 0 Hail (1.50)

Comanche County 3 WNW Fletcher 30 1451CST 0 0 Hail (1.25)

Comanche County 4 NE Lake Ellsworth Dam 30 1455CST 0 0 Hail (1.25)

Comanche County 6 ENE Fletcher 30 1500CST 0 0 Hail (1.50)

Grady County Rush Springs 30 1518CST 0 0 0.00K 0.00K Hail (1.00)

Cleveland County 3 ENE Slaughterville 30 1520CST 0 0 0.00K 0.00K Hail (1.00)

Caddo County 5 SSE Cement 30 1528CST 1728CST 0 0 0.00K 0.00K Flood

Spotters reported water over roadways near interstate 44. Cleveland County 5 E Slaughterville 30 1530CST 0 0 0.00K 0.00K Hail (1.00)

Cleveland County 5 S Lake Thunderbird Dam 30 1533CST 0 0 0.00K 0.00K Hail (1.00)

464 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Cleveland County 2 NW Slaughterville 30 1550CST 0 0 0.00K 0.00K Hail (1.00)

Stephens County 4 ESE Bray 30 1609CST 0 0 0.00K 0.00K Hail (1.00)

Stephens County 4 ESE Bray 30 1612CST 0 0 Hail (1.75)

Stephens County 4 ESE Bray 30 1627CST 0 0 15.00K 0.00K Hail (4.25)

Several storm spotters and chasers had vehicle damage. Stephens County 4 SE Marlow 30 1630CST 0 0 30.00K 0.00K Thunderstorm Wind (61EG)

Large trees up to 16 inches in diameter snapped. Minor structural damage also occurred to roofs and fences.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Garvin County 1 NE Pernell 30 1658CST 1659CST 0.41 200 0 0 0.00K 0.00K Tornado (EF0)

Brief rain wrapped tornado was reported via Spotter Network. No damage was reported.

Murray County 13 WNW Turner Falls 30 1740CST 0 0 0.00K 0.00K Hail (1.00)

Garvin County 2 SE Whitebead 30 1846CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

No damage was reported. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Garvin County 1 E Whitebead 30 1847CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

No damage was reported. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Garvin County 2 NNW Pauls Valley 30 1851CST 0 0 0.00K 0.00K Hail (1.00)

Garvin County Wynnewood 30 1935CST 0 0 20.00K 0.00K Hail (4.00)

Hail near softball size was reported along with wind gusts of 50 to 60 mph.

Murray County 1 NW Sulphur 30 2023CST 0 0 Hail (1.75)

Murray County 4 NNE Sulphur 30 2030CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Murray County 5 N Sulphur 30 2030CST 0 0 20.00K 0.00K Thunderstorm Wind (65EG)

One home had significant roof damage. Carport on back of home was also blown away by the winds.

465 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast

A stalled frontal boundary and dryline became the focus for scattered supercell thunderstorms during the afternoon hours of the 30th. While a couple of brief tornadoes occurred, very large hail and damaging winds were the main hazards of the day. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Blaine County 2 NE Greenfield 31 1559CST 0 0 0.00K 0.00K Hail (1.25)

Hail ranged in size from quarter to half dollar size. No damage was reported.

Kay County 4 E Ponca City 31 1600CST 0 0 0.00K 0.00K Hail (1.00)

Kay County 4 E Ponca City 31 1600CST 0 0 Thunderstorm Wind (56EG)

No damage was reported. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Blaine County Geary 31 1620CST 0 0 Hail (1.75)

Hail reported from NSSL SHAVE project. No damages reported. Caddo County 1 SE Hinton 31 1620CST 0 0 Hail (1.25)

Hail was reported via NSSL SHAVE project. No damage was reported.

Kingfisher County 1 NE Omega 31 1635CST 1637CST 1 50 0 0 0.00K 0.00K Tornado (EF0)

Broadcast media and Spotter Network reports of brief tornado northeast of Omega. No damage was reported.

Payne County 3 WSW Lake Carl Blackwell 31 1649CST 0 0 Thunderstorm Wind (61EG)

No damage was reported. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Comanche County 5 NNE Faxon 31 1650CST 0 0 0.00K 0.00K Hail (1.00)

The hail was reported via the SHAVE project. Canadian County 7 S Calumet 31 1655CST 1656CST 0.35 30 0 0 1.00K 0.00K Tornado (EF0)

Storm damage survey and Spotter Network reports confirmed a brief tornado in rural areas south of Calumet. Convergent wheat pattern and minor tree damage were noted. Comanche County 5 SSE Lawton 31 1700CST 0 0 0.00K 0.00K Hail (2.50)

The hail was reported via the NSSL shave project. Canadian County 8 S Calumet 31 1703CST 6 SSW Richland 1744CST 16.2 4576 8 0 300.00K 0.00K Tornado (EF3)

On 31 May, an intense, long-track tornado formed southwest of El Reno. This exceptionally wide tornado took a complex path, rapidly changing in both speed and direction. The tornado spared El Reno and its airport from a direct hit, tracking just south of those locations. The tornado damaged numerous homes along with a few businesses near El Reno. Additionally, intense sub- vortices destroyed crops in numerous fields in the area.

466 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast

The tornado developed at 6:03 p.m. just northeast of the intersection of Heaston and Reuter roads. Initially, the tornado moved to the southeast at 20 to 25 mph. At 6:09 p.m., the tornado turned to the east, just south of Reno Road between Heaston and Brandley roads. The tornado continued to expand in size just southwest of the El Reno Municipal Air Park, where its speed increased to 30 to 40 mph. As the tornado passed just south of the airport, two satellite tornadoes formed briefly on the west side of the tornado. At 6:19 p.m. the tornado crossed Highway 81 near Reno Road as it continued to expand in size. There, the tornado abruptly turned to the north, while also accelerating to greater than 50 mph. From 6:24 to 6:26 p.m., the tornado reached its maximum in size and intensity near the intersection of Radio and Reuter roads. The tornado, still very large, slowed down as it approached I-40. From 6:27 to 6:35 the tornado made a loop just north of the interstate while decelerating to less than 10 mph. After 6:35, the tornado moved east once again, and dissipated at 6:42 p.m. near the intersection of I-40 and Banner Road. Eight people were killed in the tornado, all in vehicles. This included three severe storm researchers who were killed east of US -81 as the tornado overtook their position. Additionally, several other people were killed while attempting to escape the tornado near Highway 81. Finally, two people were killed along I-40 while waiting for the storm to pass.

The monetary damages were estimated. This tornado was well sampled by two separate mobile research radar teams the University of Oklahoma RaXPol radar, and the Center for Severe Weather Researchs Doppler on Wheels. Both radars captured high temporal and spatial resolution data relatively close to the large tornado. Both radars measured winds in the tornado of more than 200 mph. The RaXPol radar data shows winds of at least 295 mph very close to the surface. These intense winds were present in very small sub-vortices within the larger tornado circulation. An analysis of the high resolution radar data combined with the results of the ground damage survey indicates that none of these intense sub-vortices impacted any structures in rural Canadian County. So despite the measured wind speeds, surveyors could not find any damage that would support a rating higher than EF3 based solely on the damage indicators used with the EF scale.

The maximum tornado width was 2.6 miles. However, the damaging wind swath was much larger, as non-tornadic downdraft winds extended for at least a mile south of the tornado. Given the difficulty of separating this damage from tornadic damage, the OU RaXPol radar was used to help determine the width. M67VE, M35VE, F26VE, M0VE, M32VE, M55VE, M24VE, M45VE

View of the tornado during its earlier stages. Photo by Jeff Snyder. Comanche County Geronimo 31 1710CST 0 0 0.00K 0.00K Hail (2.00)

The hail was reported via the NSSL shave project. Comanche County 5 WSW Pumpkin Center 31 1720CST 0 0 0.00K 0.00K Hail (2.50)

The hail was reported via the NSSL shave project. No damage was reported.

Canadian County 6 W Yukon 31 1729CST 1741CST 5 150 0 0 20.00K 0.00K Tornado (EF2)

The storm damage survey and Doppler on Wheels mobile radar detected a long-lived anticyclonic tornado southwest of Yukon. Some structural damage was noted along with damage to trees. Damages estimated.

467 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Comanche County 3 ENE Geronimo 31 1730CST 0 0 Hail (2.25)

The hail was reported via the NSSL SHAVE project. No damage was reported.

Comanche County 4 SE Lawton 31 1730CST 0 0 Hail (2.50)

No damage was reported. Comanche County 4 SE Lawton 31 1730CST 0 0 Hail (2.50)

No damage was reported. Comanche County 4 SE Lawton 31 1730CST 0 0 Hail (2.50)

The hail was reported via the NSSL SHAVE project. No damage was reported.

Comanche County 5 SW Pumpkin Center 31 1735CST 0 0 Hail (2.50)

The hail was reported via the NSSL SHAVE project. No damage was reported.

Comanche County 5 ESE Lawton 31 1735CST 0 0 Hail (2.75)

The hail was reported via the NSSL SHAVE project. No damage was reported.

Oklahoma County 2 NE Warr Acres 31 1745CST 0 0 0.00K 0.00K Hail (1.00)

The hail was reported at Hefner and Council roads. Canadian County 4 SE Yukon 31 1751CST 5 NE Mustang 1754CST 1.61 500 0 0 50.00K 0.00K Tornado (EF0)

An relatively long-lived weak tornado began northwest of SW 15th Street and Morgan Road in western Oklahoma City to the southeast of Yukon. The tornado moved just south of east for a little over 1.5 miles and into Oklahoma County. Damage to trees and power lines was noted, as well as very minor structural damage to some homes. Damages estimated.

Oklahoma County 4 NNW Wheatland 31 1754CST 4 N (OKC)Will Rogers Apt 1809CST 4.1 600 0 0 100.00K 0.00K Tornado (EF1)

A tornado moved into Oklahoma County from Canadian County in western Oklahoma City and moved generally east along and near SW 15th Street before dissipating near SW 15th and Meridian Avenue. Buildings, power lines and trees were damaged, including broken windows at a couple of motels along Meridian Avenue. Damage amounts were estimated.

Canadian County 1 NW Yukon 31 1755CST 0 0 Hail (1.75)

No damage was reported. Canadian County 6 S El Reno 31 1755CST 4 N Union City 1757CST 0.47 50 0 0 0.00K 0.00K Tornado (EF0)

A tornado was reported from Spotter Network where a strong radar signal from terminal doppler TOKC was also located. And damage from this tornado would have been indiscernible as this tornado occurred within the damage path of the earlier El Reno EF5 tornado.

468 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Oklahoma County 3 NNW Wheatland 31 1800CST 2 ESE (OKC)Will Rogers Apt 1830CST 0 0 0.00K 0.00K Thunderstorm Wind (83EG)

Wind damage was widespread across southwest Oklahoma City as the tornadic storm produced several surges of intense winds as it moved across the area. The damage was widespread from County Line Road from SW 29th and SW 44th Streets, southeastward across Will Rogers World Airport to along SW 89th Steet between Portland Avenue and Pennsylvanie Avenue. An outbuilding was destroyed at Western Heights High School near SW 44th Street and Council Road with winds estimated at 95 mph. Winds gusts of 61 knots (70 mph) were measured at 7:05 pm CDT at the Will Rogers Airport (OKC) ASOS with one of these surges, followed by another gust of 62 knots (71 mph) with a second surge at 7:21 pm CDT.

Note: The estimated wind gust of 83 knots is equivalent to 96 mph. Oklahoma County (OKC)Will Rogers Apt 31 1805CST 0 0 100.00K 0.00K Thunderstorm Wind (61MG)

The wind gusts were caused by rear flank downdraft winds near an associated tornadic circulations. Considerable damage occurred to the ASOS, including full removal from static platform. Widespread damage to trees and a few buildings on the Will Rogers World Airport grounds. Damages estimated. Note: The measured wind gust of 61 knots is equivalent to 70 mph. Payne County 1 E (SWO)Stillwater Airport 31 1808CST 0 0 Thunderstorm Wind (50MG)

No damage was reported. Note: The measured wind gust of 50 knots is equivalent to 58 mph. Oklahoma County 4 W Oklahoma City 31 1810CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)

No damage was reported. Note: The measured wind gust of 52 knots is equivalent to 60 mph. Oklahoma County 4 SSE Warr Acres 31 1815CST 3 WSW Valley Brook 1830CST 0 0 0.00K 0.00K Thunderstorm Wind (83EG)

Another area of widespread wind damage occurred with a surge of wind from the tornadic storm across southwest Oklahoma City, from roughly Portland Avenue and Reno Avenue southeast to near SW 83rd Street and Walker Avenue. The most significant damage occurred near SW 79th Street and Western Avenue where winds estimated at 95 mph uprooted large trees and damaged a service station canopy. Note: The estimated wind gust of 83 knots is equivalent to 96 mph. Oklahoma County 4 W Oklahoma City 31 1820CST 0 0 Thunderstorm Wind (63MG) Note: The measured wind gust of 63 knots is equivalent to 72 mph.

Oklahoma County (OKC)Will Rogers Apt 31 1821CST 0 0 100.00K 0.00K Thunderstorm Wind (62MG)

The wind gusts were caused by rear flank downdraft winds near an associated tornadic circulations. Considerable damage occurred to the ASOS, including full removal from static platform. Widespread damage to trees and a few buildings on the Will Rogers World Airport grounds. Damages estimated. Note: The measured wind gust of 62 knots is equivalent to 71 mph. Cleveland County 5 WNW Moore 31 1830CST 0 0 20.00K 0.00K Thunderstorm Wind (65EG)

Roof damage was noted to houses along May Avenue from SW 89th Street south to at least SW 96th Street.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Oklahoma County 2 ENE Valley Brook 31 1835CST 1837CST 0.5 200 0 0 20.00K 0.00K Tornado (EF0)

An EF-0 tornado traveled from Creekwood Terrace southeast to Keith Drive near SE 54th Street. Minor damage to trees and power lines was noted. Damages estimated.

469 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Oklahoma County 4 SE Bethany 31 1836CST 0 0 Hail (1.25)

The hail was reported at interstate 40 and Meridian. No damage was reported.

Cleveland County 7 W Moore 31 1842CST 1843CST 1 100 0 0 100.00K 0.00K Tornado (EF1)

Storm damage survey indicated a brief EF-1 tornado developed near in the South Lakes Park area near SW 119th Street and Meridian Avenue. Damage to several homes, trees, and power lines and poles occurred. Damages estimated.

Grady County 2 NNE Tuttle 31 1845CST 0.2 50 0 0 0.00K 0.00K Tornado (EF0)

Two storm chasers filmed a tornado to the northeast of Tuttle near the Canadian River. The tornado produced no known damage. Cleveland County 1 WNW Moore 31 1850CST 1900CST 0 0 100.00K 0.00K Thunderstorm Wind (70EG)

An area of wind damage occurred through Moore. The most significant damage was roughly from an area near NW 5th Street and Dillon Street to east of Main Street and Eastern Avenue. Roof damage occurred to many homes and two strip malls. Damage occurred also to many trees, a few light stands, and a scoreboard at a junior high school football field. Damage amounts are estimated. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Grady County Tuttle 31 1850CST 0 0 10.00K 0.00K Thunderstorm Wind (65EG)

Wind damage occurred in and near Tuttle. Damage was reported to barns, trees, and at least one home suffered roof damage.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Oklahoma County 3 ENE (OKC)Will Rogers Apt 31 1853CST 3 W Valley Brook 1855CST 1.13 300 0 0 80.00K 0.00K Tornado (EF1)

A tornado touched down just west of SW 59th Street and Pennsylvania Avenue in southwest Oklahoma City, and moved east to just southwest of SW 59th Street and Western Avenue. Roof and tree damage occurred with this tornado. Damage amounts are estimated.

Oklahoma County Oklahoma City 31 1900CST 2200CST 0 0 30.00K 0.00K Flash Flood

Reports of tunnels flooding in downtown Oklahoma City. Minor damage was reported with no injuries. Damages estimated.

Cleveland County Moore 31 1900CST 0 0 0.00K 0.00K Hail (1.00)

Cleveland County 4 WNW Moore 31 1900CST 0 0 25.00K 0.00K Thunderstorm Wind (61EG)

Extensive tree damage occurred with several trees snapped. One large tree was also snapped at the base. Damages estimated.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Oklahoma County 1 N (TIK)Tinker Afb 31 1901CST 0 0 Thunderstorm Wind (54MG)

No damage was reported. Note: The measured wind gust of 54 knots is equivalent to 62 mph.

470 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Oklahoma County 2 N (OKC)Will Rogers Apt 31 1906CST 2206CST 5 0 50.00K 0.00K Flash Flood

Several vehicles were partially submerged in floodwaters. Five individuals seeking shelter in a drainage ditch were swept away and killed. Damage estimated. F4OT, M21OT, M3OT, F0OT, F3OT

Oklahoma County 1 N (TIK)Tinker Afb 31 1914CST 0 0 Thunderstorm Wind (76MG)

No damage was reported. Note: The measured wind gust of 76 knots is equivalent to 87 mph. Cleveland County 3 SSE Norman 31 1924CST 0 0 2.00K 0.00K Thunderstorm Wind (57MG)

The wind gust was measured at the NWS forecat office in Norman. Light tree damage was noted. But no significant damage occurred. Note: The measured wind gust of 57 knots is equivalent to 66 mph. Oklahoma County (PWA)Wiley Post Apt 31 1931CST 0 0 Thunderstorm Wind (50MG)

No damage was reported. Note: The measured wind gust of 50 knots is equivalent to 58 mph. Grady County 4 SSE Bridge Creek 31 1936CST 0 0 Hail (1.75)

The hail was reported at mile marker 102 along the H.E. Bailey Turnpike. No damage was reported.

Grady County 4 SE Bridge Creek 31 1945CST 0 0 Hail (1.75)

No damage was reported. Cleveland County 5 N Moore 31 1955CST 2355CST 0 0 100.00K 0.00K Flash Flood

Numerous vehicles submerged in water along Reno Ave. Damage estimated.

Mcclain County Newcastle 31 1955CST 0 0 Hail (1.25)

Nickel to half dollar size hail was reported. No damage was reported.

Mcclain County Newcastle 31 1955CST 0 0 Thunderstorm Wind (52EG)

No damage was reported. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Oklahoma County 2 SSE Warr Acres 31 2000CST 2200CST 7 0 0.00K 0.00K Flash Flood

Several individuals were swept under a roadway and killed while seeking shelter in a storm drain. No damage was reported. F34OT, F34OT, F7OT, M4OT, M8OT, M33OT, M4OT Pottawatomie County 1 W Shawnee 31 2003CST 0 0 0.00K 0.00K Hail (1.00)

471 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Pottawatomie County 4 NNW Shawnee 31 2010CST 0 0 Thunderstorm Wind (54MG)

No damage was reported. Note: The measured wind gust of 54 knots is equivalent to 62 mph. Cleveland County 3 NE Noble 31 2015CST 0 0 Hail (1.75)

No damage was reported. Cleveland County 3 N Noble 31 2017CST 0 0 0.00K 0.00K Hail (1.00)

Cleveland County 4 N Slaughterville 31 2020CST 0 0 Hail (1.75)

No damage was reported. Cleveland County 6 ENE Slaughterville 31 2023CST 0 0 Hail (1.75)

The hail fell a half mile north and west of the intersection of southeast 108th St. and Maguire road. No damage was reported.

Grady County 3 NE Tuttle 31 2032CST 0 0 0.00K 0.00K Hail (1.00)

Mcclain County 1 NW Newcastle 31 2035CST 2359CST 0 0 0.00K 0.00K Flash Flood

Numerous roads closed in and around Newcastle. No damage was reported.

Oklahoma County 1 SW Del City 31 2050CST 2359CST 0 0 40.00K 0.00K Flash Flood

Street flooding and vehicles stranded at southeast 29th St. and Sunnylane Rd. Damage estimated.

Oklahoma County 2 NE (PWA)Wiley Post Apt 31 2053CST 2 N Warr Acres 2359CST 0 0 0.00K 0.00K Flash Flood

Flooding reported along 7300 block of Shoreline Dr. No damage was reported.

Pottawatomie County 1 E Asher 31 2055CST 0 0 Hail (2.50)

The hail was reported along highway 39. No damage was reported.

Pottawatomie County 5 E St Louis 31 2105CST 0 0 Hail (1.75)

No damage was reported. Oklahoma County 3 WSW Valley Brook 31 2134CST 2234CST 0 0 0.00K 0.00K Flash Flood

Media reports of high water rescue at southwest 86th and Western. No damage or injuries reported.

472 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Canadian County 4 SSE Piedmont 31 2142CST 0 0 0.00K 0.00K Hail (1.00)

Canadian County 3 ESE Richland 31 2145CST 0 0 Hail (1.25)

No damage was reported. Oklahoma County 2 SSW Choctaw 31 2155CST 0 0 Hail (1.25)

The hail was reported at East Reno and South Henney roads. No damage was reported.

Oklahoma County 1 S Choctaw 31 2227CST 0 0 Hail (1.25)

At Ne 10th and N Henney Rd. Oklahoma County 1 S Choctaw 31 2230CST 0 0 Thunderstorm Wind (52EG)

No damage was reported. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Oklahoma County 6 N Harrah 31 2300CST 2359CST 1 0 15.00K 0.00K Flash Flood

Water over a bridge on Dobbs Rd. north of NE 93rd St. One fatality occurred when a car was swept off the road in the floodwaters. No other injuries were reported. Damage estimated. M65VE

A tornado outbreak occurred during the late afternoon and early evening hours of the 31st. A stalled front and deeply mixed dryline served as a focus for thunderstorm development. The front/dryline triple point was where the most intense supercells initiated. These storms traveled eastward, eventually impacting the Oklahoma City metropolitan area. Several tornadoes occurred, including the El Reno tornado, which unfortunately claimed several lives. In addition to the tornado, very large hail and heavy rains led to flash flooding in Oklahoma City. This flash flood event ranked as one of the worst in Oklahoma City history in terms of fatalities and damages to property. The event lasted well into the overnight hours. M65VE

OREGON, Central and East

ORZ509 East Slopes Of The Oregon Cascades 04 1130PST 0 0 0.00K 0.00K High Wind 04 1350PST 05 1200PST 0 0 0.00K 0.00K Wildfire

Strong winds moved across southern Deschutes County on Sunday May 4th. This knocked down several trees and power lines. Some of the trees were over 50 feet tall and had diameters of 12 to 14 inches. Also, a power line was knocked over sparked a wildfire. This wildfire spread to burn over 160 acres of land and threatened several homes.

Grant County 3 NE Canyon City 08 1303PST 1315PST 0 0 0.00K 0.00K Hail (1.25)

A Strong and brief severe thunderstorm developed over the John Day area on May 8th. Storm spotters reported both quarter size and half-dollar sized hail with the storm.

Wallowa County 4 NE Lostine 09 1430PST 1435PST 0.1 10 0 0 0.00K 0.00K Tornado (EF0)

COOP observer sent in pictures and a brief video of the short lived tornado.

A very weak EF0 tornado briefly touched down 4 miles northeast of Lostine on Thursday May, 9th. The track was 0.1 miles and had a width of 10 yards.

473 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OREGON, Southwest ORZ026 Jackson 01 0200PST 0600PST 0 0 0.00K 0.00K Frost/Freeze

A cool and very dry air mass allowed cold temperatures to develop overnight.

ORZ029 Klamath Basin 22 0100PST 0800PST 0 0 0.00K 0.00K Frost/Freeze

An unseasonably cold air mass combined with clearing skies to allow near record low temperatures to develop this morning.

23 0100PST 0800PST 0 0 0.00K 0.00K Frost/Freeze

An unseasonably cold air mass combined with clearing skies to allow near record low temperatures to develop this morning.

30 0100PST 0700PST 0 0 0.00K 0.00K Frost/Freeze

Clear skies and a cool and dry air mass allowed temperatures to drop below freezing in the east side valleys on this date.

31 0100PST 0800PST 0 0 0.00K 0.00K Frost/Freeze

Clear skies and a cool and dry air mass allowed temperatures to drop below freezing in the east side valleys on this date.

PENNSYLVANIA, Central Union County 1 E Linntown 08 1045EST 1 W Winfield 1330EST 0 0 0.00K 0.00K Flash Flood

Locally heavy rain caused flash flooding around Lewisburg. Bull Run and Turtle Creek came out of their banks and flooded adjacent roads. The Lewisburg COOP observer recorded 3.25 inches of rain.

Snyder County 2 N Shamokin Dam 08 1100EST 1 SE Clifford 1330EST 0 0 0.00K 0.00K Flash Flood

Flash flooding caused water to cover portions of SR 11 from Selinsgrove northward along the west-side of the Susquehanna River. Northumberland County 1 S Sunbury 08 1125EST 1330EST 0 0 0.00K 0.00K Flash Flood

Heavy rain and flash flooding closed the Reagan and Hamilton underpasses near Sunbury.

Training bands of locally heavy rain impacted parts of the middle Susquehanna Valley during the late morning and early afternoon. A deep east-southeast flow from the Atlantic pulled high moisture into the region around an upper-level low rotating northward from MD/VA. Rainfall rates of 1-2/hour were common with localized rainfall rates as high as 4/hour. Several locations around the Lewisburg, Selinsgrove and Sunbury areas picked up between 2-3 inches of rain over a short duration. Urbanization combined with the intense rains lead to flash flooding along SR 11 and the closure of Reagan/Hamilton underpasses near Sunbury. Small streams including Bull Run and Turtle Creek also came out of their banks.

Dauphin County 3 WNW Berrysburg 08 1735EST 0 0 0.00K Hail (1.00)

Public report of quarter-size (1 inch) hail at 1583 Deiblers Gap Road in Dalmatia. Hail lasted for approximately 20 minutes and varied in size from dimes to quarters.

474 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, Central

An upper-level low pivoted northward from MD/VA into eastern PA, overspreading a current of moist east-southeast low-level flow along and north of a weak occlusion/surface trough. Modest deep-layer shear combined with a cool pocket aloft associated with the upper low created a favorable set-up for hail. Several locations across the middle-to-lower Susquehanna Valley experienced small to marginally severe hail.

Warren County 2 SE Garland 10 1532EST 0 0 0.00K Hail (1.00)

Quarter-size (1 inch) hail reported in Garland. Warren County 2 NNW Pittsfield Arpt 10 1535EST 0 0 0.00K Hail (1.00)

Quarter-size (1 inch) hail covered the ground near intersection of SR 27 and 6 near Pittsfield.

Cambria County 1 W Conemaugh 10 1737EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down several trees and utility wires from Westmont to East Taylor Township, including the city of Johnstown. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Blair County 2 ENE Mill Run 10 1740EST 0 0 0.00K Hail (0.75)

NWS Employee reported penny-size (0.75 inch) hail in Altoona.

Blair County 2 ENE Mill Run 10 1740EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Joe Murgo, WTAJ-TV10 Chief Meteorologist reported a peak thunderstorm wind gust around 60 mph at his station on the south-west side of Altoona. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Blair County 2 ENE Mill Run 10 1745EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down numerous trees and utility wires from Hollidaysburg and Altoona to Bellwood and Tyrone. An estimated 2500-3000 customers lost power as a result of the storm.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Blair County 1 N Altoona Peterson Arp 10 1752EST 0 0 2.50K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees in Tipton.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Centre County 2 NNW (PSB)Mid St Arpt Phi 10 1826EST 0 0 2.50K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees and utility wires along Moshannon Road in Rush Township.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Clinton County 2 WNW Farrandsville 10 1906EST 0 0 2.50K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down several trees along SR 120/Renovo Road northwest of Lock Haven.

An upper level wave tracked northeast from Kentucky into the Upper Ohio Valley, triggering numerous strong to severe thunderstorms across western Pennsylvania during the late afternoon and evening. The severe storms produced wind damage and marginally severe hail, ranging from dime to quarter size. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

475 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, Central Cambria County Patton 22 1645EST 0 0 5.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down numerous trees and utility wires across northern Cambria County.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Franklin County 1 N Yeakle Mill 22 1652EST 0 0 Hail (0.88)

Nickel size hail (0.88 inch) was reported south of Big Cove Tannery.

Clearfield County Coolport 22 1655EST 0 0 5.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down numerous trees and utility wires across southeastern Clearfield County. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Clearfield County 1 NW Banian 22 1700EST 0 0 5.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees near Madera.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Mckean County 1 SSE Duke Center 22 1704EST 0 0 5.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees and utility wires near Rixford.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Huntingdon County 3 WNW Huntingdon 22 1712EST 0 0 5.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees and utility wires near Neff.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Clearfield County 1 SE Clearfield 22 1721EST 0 0 5.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees in Clearfield.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Potter County 1 E Shinglehouse 22 1725EST 0 0 5.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down utility wires in Shinglehouse.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Centre County 1 NW State College 22 1730EST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

A peak thunderstorm wind gust of 61 mph was measured atop the Walker Building on the PSU campus.

Note: The measured wind gust of 53 knots is equivalent to 61 mph. Clearfield County 2 NE Allport 22 1730EST 0 0 5.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees in Kylertown, Lanse and Winburne.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

476 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, Central Centre County 1 E Bellefonte Arpt 22 1739EST 0 0 5.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees in Benner Township.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Centre County 2 NE Lemont 22 1740EST 0 0 5.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees near the Shiloh Road exit along I-99 near the Benner Pike.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Mifflin County 1 SW Milroy 22 1748EST 0 0 5.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees and wires in Milroy.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Clinton County 1 S Lockport 22 1805EST 0 0 5.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees and utility wires around Lock Haven.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Perry County 1 W New Bloomfield 22 1820EST 0 0 5.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees and utility wires around New Bloomfield.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lycoming County 1 E Calvert 22 1825EST 0 0 5.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees in Gamble Township near Calvert.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lycoming County 2 NE Waterville 22 1841EST 0 0 2.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees and utility wires near English Mills.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Perry County 1 N Newport 22 1845EST 0 0 5.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees across West Juniata Parkway near Newport.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lycoming County Cammal 22 1846EST 0 0 2.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees and wires near Cammal.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lycoming County 1 NE Trout Run 22 1900EST 0 0 2.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees and wires near Trout Run.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

477 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, Central Northumberland County 1 WSW Sunbury 22 1918EST 0 0 5.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees and utility wires in Sunbury.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lycoming County 1 NNW Picture Rocks 22 1922EST 0 0 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees and wires near Picture Rocks.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Snyder County 1 WNW Port Trevorton 22 1924EST 0 0 5.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down wires near Herndon.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Snyder County 1 W Selinsgrove 22 1942EST 0 0 2.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down a few trees in Selinsgrove.

A belt of seasonably strong lower-mid tropospheric flow in the Ohio Valley on the eastern periphery of a large-scale upper trough impinged on a moist and unstable environment over central Pennsylvania and resulted in severe thunderstorms during the afternoon and evening. Multicell thunderstorm clusters organized into mini bowing line segments which produced several reports of damaging winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Warren County 1 E Youngsville 28 2015EST 0 0 2.50K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down several trees near Youngsville.

Strong to severe convective development shifted east of the Lake Erie region into northwest Pennsylvania, within a zone of broader vertical ascent extending downstream from an upper level wave migrating into the Great Lakes region. Isolated straight -line wind damage occurred around a supercell that moved across northern Warren into McKean County. Heavy thunderstorm rains also produced localized flooding and flash flooding. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

Warren County 2 WNW Chandlers Vly 28 2025EST 2029EST 2.76 50 0 0 10.00K Tornado (EF0)

A survey team comprised of NWS meteorologists and Warren County Emergency Management officials determined a weak EF0 tornado occurred during the late evening of May 28th. The tornado first touched down in northwest Brokenstraw township on Murray Hill Road. The tornado touched down and lifted several times...finally lifting just east of Brown Hill Road in Sugar Grove Township. The estimated maximum winds were 80 mph along the sporadic path. The EF0 tornado moved northeast along a 2 3/4 mile path for about 4 minutes. The tornado was embedded within a larger area of straight-line winds. A total of about 400 trees were knocked down or uprooted. Four homes and a church sustained minor structural damage. Two outbuildings also sustained significant damage. There were no injuries or fatalities.

Isolated supercells shifted east of the Lake Erie region and produced two tornadoes in Warren County during the late evening. Both tornadoes occurred in the northern half of the county and were relatively small/short-lived and weak. The first (EF0) tornado was embedded within a larger area of straight-line thunderstorm wind damage, while the second, more significant (EF1) tornado had a longer track and caused more damage. Official NWS storm surveys were conducted in conjunction with Warren County Emergency Management.

478 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, Central

A tornado downed a swath of trees in Sugar Grove. Warren County 3 NNW Columbus 28 2026EST 2 WNW Corydon 29 0345EST 0 0 2.50K 0.00K Flash Flood

Heavy thunderstorm rains caused flash flooding and closed portions of US Route 6 in Columbus Township, SR 69 (Jackson Run Road) and SR 59 (Kinzua Road) in the northern part of the county. Warren Fire units were called for a water rescue on Brown Run Road as Brown Run came out of its banks and over-flowed the bridge. The flood waters also impacted one home on the south-side of Kinzua Road.

A still-swollen Brown Run, a day after flood waters receded. Warren County 1 WSW Bear Lake 28 2030EST 0 0 2.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees along Swamp Road near the Pennsylvania-New York border.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

479 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, Central Warren County 3 NNE North Warren 28 2040EST 0 0 2.50K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees and utility wires on Farm Colony Road near the Allegheny Forest Supervisor Office just off of Route 62 north of Warren. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Warren County 1 ENE North Warren 28 2040EST 0 0 10.00K Thunderstorm Wind (78EG)

NWS meteorologists determined that straight-line winds caused structural damage at a baseball field located just north of Backup Corners near Route 62 in Pine Grove Township. The bleachers, fencing and roof of the concession stand were damaged. A large building had its roof removed, a flag pole was bent, and a light pole was collapsed.

Note: The estimated wind gust of 78 knots is equivalent to 90 mph. Warren County 1 ENE Russell 28 2041EST 0 0 2.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees along Route 62 near Russell.

Strong to severe convective development shifted east of the Lake Erie region into northwest Pennsylvania, within a zone of broader vertical ascent extending downstream from an upper level wave migrating into the Great Lakes region. Isolated straight -line wind damage occurred around a supercell that moved across northern Warren into McKean County. Heavy thunderstorm rains also produced localized flooding and flash flooding. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

Warren County 2 WSW Scandia 28 2058EST 1 NE Russell Scandia Arpt 2106EST 4.22 100 0 0 2.00K Tornado (EF1)

A survey team comprised of NWS meteorologists and Warren County Emergency Management officials determined a EF1 tornado occurred in Pine Grove and Elk Townships. The estimated peak winds were 100 mph. The EF1 tornado first touched down on the west-side of Cole Hill Road about 3 miles southeast of Russell and skipped east-northeast along a 4-mile path with intermittent touchdowns. The tornado finally lifted near Macks Corners. Most of the damage was confined to a large swath of trees with about 500 either uprooted or sheared-off. Two homes also sustained minor damage.

Isolated supercells shifted east of the Lake Erie region and produced two tornadoes in Warren County during the late evening. Both tornadoes occurred in the northern half of the county and were relatively small/short-lived and weak. The first (EF0) tornado was embedded within a larger area of straight-line thunderstorm wind damage, while the second, more significant (EF1) tornado had a longer track and caused more damage. Official NWS storm surveys were conducted in conjunction with Warren County Emergency Management.

A swath of trees cut through a heavily wooded area near Scandia, PA.

480 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, Central Mckean County 1 NNW South Bradford 28 2150EST 0 0 2.50K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph knocked down trees and utility wires on Dennis Lane near the Pitt-Bradford campus. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Mckean County 11 WNW West Branch 28 2232EST 6 WNW Marshburg 29 0345EST 0 0 0.00K 0.00K Flood

Heavy thunderstorm rains produced flooding across northwest McKean County. The flooding was primarily confined to rural areas, but a few secondary roads were closed around Bradford.

Strong to severe convective development shifted east of the Lake Erie region into northwest Pennsylvania, within a zone of broader vertical ascent extending downstream from an upper level wave migrating into the Great Lakes region. Isolated straight -line wind damage occurred around a supercell that moved across northern Warren into McKean County. Heavy thunderstorm rains also produced localized flooding and flash flooding.

PENNSYLVANIA, East Berks County Oley 08 1705EST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail fell in Oley Township. Lehigh County 1 W East Penn Jct 08 1808EST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail fell in the south side of Allentown. An upper air disturbance with a relative cold pocket of air aloft helped trigger thunderstorms that produced hail during the late afternoon and early evening of the 8th across Eastern Pennsylvania. The largest hail fell in Berks County and the Lehigh Valley. Monroe County 2 SE Stroudsburg 22 2200EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A severe thunderstorm knocked down a couple of trees in Delaware Water Gap.

A weakening line of thunderstorms moved through parts of eastern Pennsylvania on the evening of the 22nd. One did produce wind damage in Monroe County. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Northampton County Bethlehem 23 1405EST 0 0 0.00K 0.00K Hail (0.88)

A thunderstorm dropped nickel size hail in Bethlehem. Northampton County Bethlehem 23 1405EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A severe thunderstorm tore down large tree limbs in Bethlehem.

An approaching cold front triggered a series of thunderstorms across Eastern Pennsylvania during the afternoon and evening of the 23rd. An isolated severe thunderstorm occurred in the Lehigh Valley. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. PAZ070-071 Delaware - Philadelphia 25 0600EST 2130EST 0 0 0.00K 0.00K Astronomical Low Tide

The combination of a strong northwest flow around an anomalously strong (for late May) low pressure system slowly moving through the New England coastal waters and larger tidal spreads associated with the full moon caused pockets of blowout tides to occur during both low tide cycles on the 25th along tidal sections of the Delaware River and its tributaries. The lowest tide in Philadelphia reached 1.69 feet below mean lower low water. Blowout tides start at 1.80 feet below mean lower low water.

481 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, Northeast Bradford County 1 N Canton 22 1835EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Bradford County 1 E Troy 22 1853EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Bradford County 2 SW East Smithfield 22 1904EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Bradford County 1 SE South Waverly 22 1918EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Susquehanna County 1 SW Jefferson Jct 22 2040EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down. A warm front lifted north of the area during the late morning into the evening hours of Wednesday, May 22nd 2013. This front resulted in a cluster of storms that produced large hail and wind damage. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. PENNSYLVANIA, Northwest Crawford County Conneautville 10 1435EST 0 0 5.00K 0.00K Hail (1.25)

Penny to half dollar sized hail was observed. Crawford County Conneautville 10 1435EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds downed a few trees. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Erie County 3 SW (ERI)Erie Intl Arpt 10 1448EST 0 0 0.00K 0.00K Hail (0.75)

Penny sized hail was observed. Erie County (ERI)Erie Intl Arpt 10 1500EST 0 0 0.00K 0.00K Hail (0.75)

Penny sized hail was observed. Crawford County 10 N Titusville 10 1500EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds downed a tree and a large limb. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Crawford County Cambridge Spgs 10 1505EST 0 0 0.00K 0.00K Hail (0.75)

Penny sized hail was observed. Crawford County Venango 10 1505EST 0 0 20.00K 0.00K Hail (1.00)

Quarter sized hail damaged some vehicles.

482 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, Northwest Erie County 2 S Union City 10 1529EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds downed a couple of trees. An area of low pressure moved east across Lake Erie dragging a cold front across northwestern Pennsylvania. Showers and thunderstorms developed in advance of the front with a few of thunderstorms becoming severe. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Erie County 1 NNW Union City 28 2000EST 29 0000EST 0 0 100.00K 0.00K Flash Flood

Union City resides between two branches of the French Creek. The West Branch of the French Creek is located to the north and west of town and has a reservoir just before the confluence with the southern branch. The reservoir was constructed to retain excess runoff, mainly from spring snow melt. The reservoir water levels jumped over 30 feet as a result of the rain from this storm. Despite this, the southern branch of the French Creek, which runs through the southern part of town, came up quick and high. No gages are available on that tributary, but most of the flood damage was along this creek. The flooding that resulted was widespread through Union Township and the borough. Due to a road washout on Odell Street Ext. There were 7 rescues conducted with use of the fire truck ladder extended across the raging water. The flood damage was estimated over $100,000.

A tornadic storm moved through Union City on the evening of the 28th. Heavy rain accompanied this storm with a 15 minute ASOS rain gage reading of 0.65. The storm total rain the river basin that Union City resides in was approximately 4. Significant flooding accompanied the tornado damage in Union City.

PENNSYLVANIA, West Greene County 1 W Morrisville 10 1400EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Home had roof damage on Morris Street. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Allegheny County 1 SW Carnegie 10 1500EST 0 0 25.00K 0.00K Thunderstorm Wind (50EG)

Trees and wires were reported down in Carnegie, Green Tree, and Scott Township.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Beaver County 2 WSW West Mayfield 10 1505EST 0 0 0.00K Hail (1.50)

Beaver County 1 N New Brighton 10 1506EST 0 0 0.00K Hail (0.75)

Allegheny County 1 N Neville Is 10 1515EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

The public reported a tree down near Ben Avon. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Butler County 1 SE Watters 10 1530EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

The public reported a tree down on a power line. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Armstrong County 1 W Schenley 10 1535EST 0 0 35.00K 0.00K Thunderstorm Wind (50EG)

The 911 call center reported trees and power lines down around Freeport.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

483 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, West Butler County 1 ENE Butler Graham Arpt 10 1535EST 1536EST 0 0 5.00K 0.00K Thunderstorm Wind (61EG)

An NWS storm survey showed a narrow swath of sporadic tree damage from near Airport Road and State Route 8 to near Mushrush Road and Winters Road. Damage included a large tree uprooted along State Route 8, along with downed limbs and small trees snapped. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Butler County 2 SW Butler 10 1539EST 1541EST 0 0 5.00K 0.00K Thunderstorm Wind (70EG)

An NWS storm survey found a swath of damage from near Little Stone Lane and Crisswell Road to near Freeport Road and Phil Mar Drive. Considerable tree damage was encountered along Saxonburg Road, where several trees of large diameter were snapped 10 feet above ground. Additional trees were uprooted and large limbs snapped.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Butler County 1 E Butler 10 1541EST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

An NWS storm survey found sporadic tree damage along Herman Road east of Butler. A few limbs were snapped and a medium sized diameter tree was snapped 20 to 30 Feet above the ground.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Butler County 1 ENE Homeacre 10 1544EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

The public reported a tree down on a car at the intersection of SR 8 and SR 422.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Armstrong County 1 W Walkchalk 10 1555EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

The public reported trees down west of Kittanning. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Clarion County 1 E Callensburg 10 1612EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Emergency management reported a tree down in Callensburg. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Greene County 1 S Newtown 10 1615EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Emergency management reported trees down in Dunkard and Perry Township.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Clarion County Limestone 10 1620EST 0 0 25.00K 0.00K Thunderstorm Wind (50EG)

The 911 call center reported trees and wires down near Limestone.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Clarion County 1 E Knox 10 1624EST 0 0 25.00K 0.00K Thunderstorm Wind (50EG)

The 911 call center reported trees and wires down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

484 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, West Clarion County 1 SW Clarion Parker Arpt 10 1625EST 0 0 20.00K 0.00K Thunderstorm Wind (50EG)

The 911 call center reported trees and wires down in Clarion.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Fayette County Leith 10 1635EST 0 0 30.00K 0.00K Thunderstorm Wind (50EG)

Trees and power lines were reported down in Uniontown. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Westmoreland County Calumet 10 1655EST 0 0 25.00K 0.00K Thunderstorm Wind (50EG)

The 911 call center reported trees and wires down in Mount Pleasant.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Westmoreland County 1 N (LBE)Latrobe Arpt 10 1700EST 0 0 0.00K Thunderstorm Wind (54MG) Note: The measured wind gust of 54 knots is equivalent to 62 mph.

Westmoreland County 1 W Youngstown 10 1700EST 0 0 25.00K 0.00K Thunderstorm Wind (50EG)

The 911 call center reported trees and wires down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Westmoreland County 1 SW Ligonier 10 1712EST 0 0 30.00K 0.00K Thunderstorm Wind (50EG)

The 911 call center reported trees and wires down near Ligonier.

Scattered severe thunderstorms developed across western Pennsylvania in the late afternoon of the 10th well ahead of a cold front crossing Ohio. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Washington County 1 SSW Buffalo 21 2025EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Emergency management reported a couple of trees down in Hopewell Township.

Scattered showers and thunderstorms developed in the evening along a weak outflow boundary. Isolated severe thunderstorms developed across the West Virginia panhandle and Washington county, Pennsylvania. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Fayette County Leith 22 1515EST 0 0 0.00K Hail (0.75)

The public reported penny size hail. Fayette County Leith 22 1520EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Emergency management reported trees down on Highland Avenue.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Clarion County 2 NE Day 22 1542EST 0 0 0.00K Hail (1.00)

Westmoreland County 1 E Baggaley 22 1545EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

An NWS employee reported large tree branches down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

485 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, West Westmoreland County Baggaley 22 1550EST 0 0 20.00K 0.00K Thunderstorm Wind (50EG)

Emergency management reported a shed and trees down along Theater Street in Unity Township.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Jefferson County 3 NNW Kahletown 22 1555EST 0 0 25.00K 0.00K Thunderstorm Wind (50EG)

Fire/Rescue reported multiple trees down blocking State Route 36 from Clarion county border to State Route 889.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Indiana County 1 W Palmerton 22 1607EST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)

Numerous trees were reported down in the Black Lick area. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Indiana County 1 SW Chevy Chase Hgts 22 1616EST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported trees down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Indiana County 1 SW Homer City 22 1616EST 0 0 30.00K 0.00K Thunderstorm Wind (50EG)

Emergency management reported numerous trees and power lines down.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Indiana County 1 ESE Claypoole Hgts 22 1620EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Emergency management reported trees down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Beaver County 1 SE New Brighton 22 1629EST 0 0 0.00K Hail (0.88)

Jefferson County 1 SW Punxsutawney 22 1630EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

The 911 call center reported trees down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Washington County 1 WSW Purdy 22 1701EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

The public reported a couple of trees and branches down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Butler County 1 ESE Homeacre 22 1728EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

A large tree 1.5 feet in diameter was blown down. Thunderstorms developed just ahead of a cold front the afternoon of May 22nd with some of the storms producing damaging winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Mercer County 1 E Jamestown 28 1946EST 0 0 0.00K Hail (1.50)

486 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, West Mercer County 1 N Greenville Muni Arpt 28 1950EST 0 0 0.00K Hail (1.00)

Mercer County 1 ENE Greenville Muni Arpt 28 1955EST 0 0 20.00K 0.00K Thunderstorm Wind (50EG)

Emergency management reported multiple trees down near Greenville.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Mercer County 1 SE Kennard 28 1958EST 0 0 20.00K 0.00K Thunderstorm Wind (50EG)

Emergency management reported multiple trees down near Kennard.

Scattered thunderstorms developed along an old outflow boundary, one of which became severe severe. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. SOUTH CAROLINA, Central Newberry County 1 SE Chappells 06 0215EST 08 1100EST 0 0 3.00K 0.00K Flood

River Gage on Saluda River at Chappells went around 4 and a half feet above flood causing minor flooding of low lying areas along the river. Calhoun County 6 NNW Hammond Xrds 06 0545EST 11 1450EST 0 0 2.00K 0.00K Flood

The Congaree River at Carolina Eastman was 5.7 feet over flood stage. Minor flooding along the river at the plant occurred.

Instrumentation platform flooded from the Congaree River. Photo taken by David Schuetrum, NWS. Richland County 6 S Hopkins 06 1230EST 5 SW Gadsden 12 0500EST 0 0 1.00K 0.00K Flood

Gadsden River Gage on the Congaree went 3 feet above flood stage causing minor flooding of low lying areas along the river.

487 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH CAROLINA, Central Newberry County 1 ENE Whitmire 06 1400EST 08 1100EST 0 0 3.00K 0.00K Flood

Heavy rains caused the Enoree River to go about 2 feet above flood stage and cause minor flooding of low lying areas along the river. Lexington County Green Hill 07 0700EST 09 0630EST 0 0 5.00K 0.00K Flood

NWS survey found the amphitheater and Riverwalk flooding in West Columbia and Cayce along the Congaree River. The water level was almost 5 and a half feet above flood stage.

Amphitheater flooded along the Congaree River in West Columbia. Picture taken by David Schuetrum, NWS. Richland County 3 S Arthurtown 07 0700EST 6 SSW Sims 09 0630EST 0 0 3.00K 0.00K Flood

Congaree National Park reported flooding of several areas within the park closing areas to tourists. The lower boardwalk was covered with several feet of water and portions of the upper boardwalk near Lake Weston even became submerged with several inches of water. The upper boardwalk is on average 8 feet above the ground.

Flood lower boardwalk at the Congaree National Park from the Congaree River.

488 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH CAROLINA, Central Kershaw County 5 E Warren Xrds 08 1423EST 14 1900EST 0 0 5.00K 0.00K Flood

Lake Wateree rose just over 2 feet above full pool causing flooding of land, docks and homes along portions of the lake shoreline. Several gage points along rivers in SC went above flood stage due to 2-4 inches of rainfall. Most flooding was confined to low lying areas but some areas had some minor flooding issues with recreation and other areas.

Water overtoping the Lake Wateree Dam. Clarendon County Wilson 20 1345EST 1349EST 0 0 50.00K 0.00K Thunderstorm Wind (60EG)

EM reported a microburst took down trees and blew a steeple off a church. Underpinning was also torn off a mobile home and several framed homes and the church had shingles blown off.

An isolated severe thunderstorm produced wind damage in the Wilson area of Clarendon County. Many trees were down, a church steeple was blown off and shingles were torn off several roofs. Note: The estimated wind gust of 60 knots is equivalent to 69 mph.

Steeple blown off church along with shingles. Trees also down.

489 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH CAROLINA, Central Aiken County 3 SSW Laketon 21 1422EST 1424EST 0 0 0.00K 0.00K Hail (1.00)

Public reported quarter size hail at convenience store at exit 18 on I-26.

Fairfield County 1 SSW Crosbyville 21 1423EST 1427EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

DOT reported a couple of trees down on Hwy 215 near Coal Branch Road.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Newberry County 1 N Prosperity 21 1427EST 1429EST 0 0 35.00K 0.00K Thunderstorm Wind (60EG)

Sheriff reported numerous trees and powerlines down in Prosperity. One tree fell on a car and another on a home causing significant damage. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Aiken County 2 E Gloverville 21 1452EST 1456EST 0 0 14.00K 0.00K Thunderstorm Wind (55EG)

SKYWARN spotter reported trees and powerlines down in the Langley area.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Richland County 1 NW Olympia Mills 21 1509EST 1549EST 0 0 2.00K 0.00K Flash Flood

USGS camera showed flash flooding at Main and Whaley with 2 to 4 feet of water flooding the area.

Newberry County 2 NNE New Hope 21 1518EST 1520EST 0 0 6.00K 0.00K Thunderstorm Wind (55EG)

Newberry Electric reported a couple of trees down on powerlines in the Rawl Road area.

Scattered severe storms produced hail up to 1 inch across areas of the Midlands of South Carolina. A couple of trees fell on cars and homes. Note: The estimated wind gust of 55 knots is equivalent to 63 mph.

SOUTH CAROLINA, North Coastal Marlboro County Bennettsville 20 0600EST 0745EST 0 0 0.00K 0.00K Flood

Flooding on Main Street in Bennettsville. Water was covering the sidewalks.

Slow moving storms produced heavy rain over already saturated soil in Marlboro County.

Darlington County College Hgts 23 1818EST 2030EST 0 0 0.00K 0.00K Flood

Road closure at the 900 Block of N Marquis Hwy in Hartsville due to flooding.

A strong thunderstorm produced heavy rain north of Hartsville.

490 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH CAROLINA, North Coastal Darlington County 1 SSE Syracuse 23 1843EST 1844EST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail was reported at a residence along South Center Road.

Thunderstorms developed along and ahead of a pre-frontal trough. One of these thunderstorms produced small hail north of Timmonsville during the evening.

SOUTH CAROLINA, Northwest Greenville County 1 W Simpsonville 07 1155EST 0 0 Hail (0.75)

Pea to penny size hail was reported in Simpsonville. A few weak thunderstorms developed over Upstate South Carolina during the late morning hours as a strong upper low crossed north of the region. Small hail was reported with one of the storms.

Spartanburg County 1 W Fingerville 18 2330EST 0 0 Heavy Rain

A vehicle was stuck in 1 foot of water on Cannon Ford Road off of Highway 11.

Heavy rain over northern Spartanburg County caused a few minor flooding problems.

Oconee County 1 NNW Mountain Rest 20 1636EST 1656EST 0 0 Hail (1.00)

Up to quarter size hail fell for 20 minutes along Gnats Hollow Rd.

Oconee County 1 WNW Mountain Rest 20 1644EST 0 0 Hail (0.88)

Several spotters reported dime to nickel size hail north and west of Mountain Rest.

Isolated thunderstorms developed over the mountains of South Carolina during the afternoon hours. One of the storms produced large hail. Pickens County 3 NNW Nine Times 21 1546EST 0 0 Thunderstorm Wind (50EG)

Two trees were blown down west of Sunset. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oconee County 2 NW Long Creek 21 1745EST 0 0 Hail (1.00)

Oconee County 1 SW Long Creek 21 1745EST 0 0 Thunderstorm Wind (50EG)

Multiple trees were blown down in the Long Creek area. Isolated thunderstorms developed over the mountains of South Carolina. A few of the storms became severe, producing large hail and wind damage. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oconee County 2 NNE Mountain Rest 22 1457EST 0 0 Hail (1.00)

Hail up to one inch diameter covered the ground on Stakey Mountain Rd.

Pickens County 1 N Eastatoe 22 1550EST 0 0 Thunderstorm Wind (50EG)

One tree and multiple large limbs were reportedly blown down just east of Lake Jocassee.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

491 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH CAROLINA, Northwest Pickens County 4 NNE Latham 22 1650EST 0 0 Thunderstorm Wind (50EG)

Highway Patrol reported a tree blown down on Slickum Rd and another tree down on Albatross Rd to the northeast of Easley.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oconee County 1 SSW Seneca 22 1706EST 0 0 Hail (0.75)

Penny size hail was reported just south of Seneca. Spartanburg County 1 NNE Gramling 22 1823EST 2 SSW New Prospect 1827EST 0 0 Thunderstorm Wind (55EG)

Multiple large trees were blown down in the Lake Bowen area. Highway Patrol also reported several trees down in the Campobello area. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Pickens County 1 S Pickens Co Arpt 22 2050EST 0 0 Hail (0.75)

Penny size hail was reported about a mile north of Liberty. Greenville County 1 W Travelers Rest 22 2100EST 0 0 Hail (1.00)

Quarter size hail was reported near Travelers Rest. Greenville County Greenville 22 2130EST 0 0 Thunderstorm Wind (50EG)

A tree was blown down on Main Street in Greenville. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Greenville County 1 ESE Donaldson Afb 22 2130EST 0 0 Thunderstorm Wind (50EG)

A tree was blown down on Fork Shoals Road, just north of the intersection of Ashmore Bridge Road.

Scattered thunderstorms developed over western South Carolina during the afternoon hours. A few of the storms produced damaging winds and a little hail. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Spartanburg County 2 SSW New Prospect 23 1515EST 0 0 Hail (0.88)

Nickel size hail was reported near Lake Bowen. Spartanburg County 3 WNW Boiling Spgs 23 1526EST 0 0 Hail (1.00)

One inch hail was reported at the intersection of Sugar Ridge Rd and Clark Rd.

An isolated thunderstorm produced large hail over Spartanburg County.

Anderson County 2 SW (AND)Anderson Co Arp 23 2104EST 0 0 Thunderstorm Wind (50EG)

A tree was blown down on Dobbins Bridge Rd, about 5 miles west southwest of Anderson.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Anderson County 1 W Anderson 23 2104EST 0 0 Thunderstorm Wind (50EG)

A tree was blown down on the west side of Anderson. Scattered thunderstorms developed over western South Carolina during the afternoon hours. A few of the storms produced damaging winds and a little hail. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

492 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH CAROLINA, South Coastal SCZ050 Charleston 02 1908EST 1909EST 0 0 1.0K 0.00K Strong Wind

03 1727EST 1728EST 0 0 0.5K 0.00K Strong Wind

03 1727EST 1728EST 0 0 0.5K 0.00K Strong Wind

With strong high pressure positioned to the northeast, a wedge of high pressure was in place east of the Appalachians. A tight northeast pressure gradient was present along the South Carolina coast which produced gusty winds, knocking down a few trees. 05 1700EST 1800EST 0 0 0.00K 0.00K Coastal Flood

05 1700EST 1800EST 0 0 0.00K 0.00K Coastal Flood

05 1700EST 1800EST 0 0 0.00K 0.00K Coastal Flood

Unusually high astronomical tides produced by strong onshore winds produced shallow coastal flooding around downtown Charleston. Dorchester County 2 SSW Rosinville 20 1626EST 1627EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)

South Carolina Highway Patrol reported two trees down on Indian Field Circle.

Scattered diurnal showers and thunderstorms developed in the afternoon hours under the influence of weak high pressure. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Berkeley County 1 N Goose Creek 21 1210EST 1211EST 0 0 10.00K 0.00K Lightning

Lightning struck a house and caused a fire on Cannon Avenue.

Allendale County 3 W Appleton 21 1525EST 1526EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)

South Carolina Highway Patrol reports a tree down and in the roadway at the intersection of Revolutionary Road and Highway 3. Scattered diurnal showers and thunderstorms developed in the afternoon and evening hours under the influence of weak high pressure and a trough of low pressure east of the Appalachians. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. SCZ050 Charleston 25 2012EST 2112EST 0 0 0.00K 0.00K Coastal Flood

Unusually high astronomical tides produced by the perigean spring tide caused shallow coastal flooding in downtown Charleston. 27 1056EST 1256EST 0 0 0.00K 0.00K Rip Current

The combination of strong afternoon onshore winds and swell energy created conditions favorable for the development of rip currents.

493 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, Central and North

SDZ003-009-015- Buffalo - Corson - Dewey - Hand - Hughes - Hyde - Jones - Lyman - Potter - Stanley - Sully - Walworth 033>037-045-048- 051 01 0000CST 28 2359CST 0 0 Drought

After a rather quiet start to May, the weather pattern turned unsettled and wet during the middle of the month. A large upper level low pressure system spinning over the region for a few days brought much needed moderate to heavy rainfall from the 17th through the 22nd. This caused most of the region to improve by one category on their drought conditions. The severe to extreme drought area along and west of the Missouri River at the beginning of the month improved by the middle of the month with only a small portion of southwest Corson county in extreme drought and the rest having moderate to severe drought conditions. By the end of the month, only southwest Stanley and most of Jones County had severe drought.

Stanley County 1 E Hayes 17 1816MST 0 0 Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Stanley County 4 SW Wendte 17 1819MST 0 0 0.00K 0.00K Hail (0.88)

Jones County 2 NE Van Metre 17 1915CST 0 0 Hail (1.00)

Hughes County 8 NW Pierre 17 1951CST 0 0 Thunderstorm Wind (53MG)

A storm system moving across the area brought gusty winds of over 60 mph along with quarter size hail. Locally heavy rainfall was also reported. Note: The measured wind gust of 53 knots is equivalent to 61 mph. Dewey County 8 N Eagle Butte 18 1540MST 0 0 Hail (1.00)

Dewey County 2 W Firesteel 18 1622MST 0 0 Hail (1.00)

Stanley County 4 NW Lacy 18 1625MST 0 0 Hail (1.00)

Stanley County 5 NW Lacy 18 1641MST 0 0 Hail (1.00)

Stanley County 6 S Mission Ridge 18 1653MST 0 0 Hail (1.25)

Hail covered the ground. Hand County 5 E Danforth 18 2341CST 0 0 Thunderstorm Wind (58MG) Note: The measured wind gust of 58 knots is equivalent to 67 mph.

Clark County 1 SW Clark Co Arpt 19 0055CST 0 0 Thunderstorm Wind (69MG)

One tree was downed and there was partial damage to a warehouse roof northeast of town.

A weak upper level disturbance moving across South Dakota interacted with an unstable surface environment resulting in severe thunderstorms. Winds gusting up to near 80 mph in Clark county caused some damage. However with a slow storm motion, some thunderstorms produced locally heavy rainfall. Some rainfall amounts included; 3.24 inches 10 miles southeast of Roscoe; 2.36 inches near Herreid; 2.19 inches in Roscoe; 2.17 inches near Hoven and 1.92 inches in Onida. Note: The measured wind gust of 69 knots is equivalent to 79 mph.

494 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, Central and North Corson County 9 S Keldron 25 1630MST 0 0 Hail (1.75)

Corson County Mc Intosh 25 1844MST 0 0 Hail (0.88)

Corson County 6 NE Athboy 25 1844MST 0 0 Hail (1.75)

Quarter size hail completely covered the ground. Corson County 14 NE Athboy 25 1851MST 1911MST 0 0 0.00K Hail (1.25)

It hailed for about 20 minutes with the largest hail stone being half dollar size.

Dewey County Timber Lake 25 2058MST 0 0 Hail (1.00)

Dewey County 7 SE Firesteel 26 0045MST 0 0 Hail (0.88)

Hyde County 4 NNW Holabird 26 0331CST 0 0 Hail (1.50)

Corson County Mc Intosh 26 0335MST 0 0 Thunderstorm Wind (56MG)

A storm system moving east-southeast along a warm front interacted with increasing low level winds and an abnormally moist air-mass to result in severe storms across north central and central South Dakota. Hail, up to golf ball size, was reported mostly in north central South Dakota. Locally heavy rainfall occurred from southeast Sully County, across central Hyde and Hand County. Rainfall amounts included, 2.09 inches near Highmore; 2.30 inches 20 miles southeast of Onida; 2.90 inches 11 miles northwest of Miller; 3.63 inches 3 miles southeast of Miller; 4.10 inches near Wessington; and 4.50 inches 6 miles north of Miller. Note: The measured wind gust of 56 knots is equivalent to 64 mph. Lyman County 1 NW Presho 27 2157CST 0 0 Thunderstorm Wind (52EG)

A camper and heating unit at the school was blown over. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Lyman County 1 NW Presho 27 2157CST 0 0 Thunderstorm Wind (71MG) Note: The measured wind gust of 71 knots is equivalent to 82 mph.

Lyman County 1 NW Presho 27 2205CST 0 0 Hail (1.75)

The combination of golf ball size hail and very strong winds resulted in leaves stripped from all the trees.

Lyman County 4 E Presho Muni Arpt 27 2220CST 0 0 Thunderstorm Wind (75EG)

Winds stripped shingles and tar paper off a roof. Heavy rain seeped through and destroyed the interior ceilings of a home.

Note: The estimated wind gust of 75 knots is equivalent to 86 mph. Lyman County 1 W Oacoma 27 2255CST 0 0 Thunderstorm Wind (69MG)

495 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, Central and North

A line of storms moving along an instability axis brought severe weather to part of central South Dakota during the late evening hours. While golf ball size hail occurred, the main threat with these thunderstorms was the destructive winds in excess of 80 mph where they caused some damage from Presho and east. Note: The measured wind gust of 69 knots is equivalent to 79 mph. Brown County 5 NNW Hecla 30 2200CST 3 WNW Columbia 31 2359CST 0 0 0.00K 0.00K Flood

Heavy rain fell over the James River basin in North Dakota during the early portion of the month. The added influx of water caused the U.S. Army Corps of Engineers to increase the releases of water from the Jamestown Reservoir and the Pipestem Reservoir. The James River rose to just over flood stage to 13.2 feet by the end of the month and continued to rise into June. Low-lying agricultural land began to flood along the river.

Corson County 12 S Thunder Hawk 31 1315MST 6 NNW Athboy 2359MST 0 0 0.00K 0.00K Flood

Heavy rain falling over the Grand River basin caused the river to climb above the 15 foot flood stage during the early afternoon hours of the 31st. The highest flood stage reached was 15.80 feet on the 31st. The flooding mainly affected low lying pasture and hay land along the river. The river went quickly below flood stage in the early morning hours of June 1st.

SOUTH DAKOTA, Southeast

SDZ050-057-063- Bon Homme - Brule - Charles Mix - Clay - Gregory - Union - Yankton 068>071 01 0000CST 0 0 0.00K 0.00K Drought 16 Long term dry soil conditions and low flows on the Missouri River contributed to lingering drought at the start of May. The severe to extreme drought steadily abated as precipitation increased during the first part of the month, with the sensitivity of the area to potential dry summer periods decreasing.

SDZ067-071 Lincoln - Union 01 0100CST 0 0 0.00K 0.00K Winter Weather 02 Wet snow, mixed with rain at times, accumulated 3 to 6 inches in Lincoln and Union Counties on May 1st into the early morning hours of May 2nd. Yankton County 2 NW Mayfield 08 1600CST 1603CST 0.5 25 0 0 0.00K 0.00K Tornado (EF0)

A brief landspout caused no reported damage. The tornado was recorded with video equipment.

A landspout was observed and photographed near Mayfield in Yankton County in southeast South Dakota on the afternoon of May 8th. No damage was reported. Davison County 1 W (MHE)Mitchell Arpt 18 2331CST 0 0 0.00K 0.00K Thunderstorm Wind (56MG) Note: The measured wind gust of 56 knots is equivalent to 64 mph.

Beadle County 2 WSW Cavour 19 0008CST 0 0 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds caused tree damage. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Beadle County Hitchcock 19 0010CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew a large metal bin into a mobile home.

Thunderstorms produced damaging wind gusts in Davison and Beadle Counties in southeast South Dakota near midnight on the night of May 18th and 19th, 2013. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

496 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, Southeast Brule County 4 N Kimball 19 1735CST 0 0 0.00K 0.00K Funnel Cloud

Aurora County 7 SSE White Lake 19 1820CST 0 0 0.00K 0.00K Funnel Cloud

Two funnel clouds were reported with thunderstorms in the late afternoon and early evening of May 19th. One was in Brule County and the other was in Aurora County.

Minnehaha County 4 NNW Sioux Falls Sky Have 25 2223CST 2 N Ellis 26 0500CST 0 0 30.00K 0.00K Flash Flood

Heavy rainfall of up to 5 inches in a short time caused widespread street flooding with water up above wheels in some places. There were also homes that has basement and lower floor flooding. The rain also caused flash flooding of sections of the Big Sioux River, including the Tuthill Park area in Sioux Falls. There was damage to homes, roads, and home possessions.

Lincoln County 1 E Canton 25 2225CST 0 0 0.00K 0.00K Hail (1.00)

Turner County 1 NNE Marion 25 2239CST 0 0 0.00K 0.00K Hail (1.00)

Turner County 6 SW Parker 25 2258CST 0 0 0.00K Hail (1.75)

Large hail damaged vehicles. The amount of damage was not known.

Lincoln County 3 NW Canton 25 2315CST 0 0 0.00K 0.00K Hail (0.88)

Lincoln County 3 N Tea 26 0045CST 3 NW Shindler 0600CST 0 0 0.00K 0.00K Flash Flood

Heavy rainfall of up to 5 inches in a short time caused street flooding in southern Sioux Falls, with water up to the tops of wheels. Other roads and basements were flooded in northern and central Lincoln County.

Mccook County 4 SSE Center 26 0100CST 0 0 0.00K 0.00K Heavy Rain

Rainfall of 2.10 inches was measured in less than two hours.

Mccook County 4 E Salem 26 0540CST 0 0 0.00K 0.00K Heavy Rain

Heavy rainfall of 3.85 inches was measured. Thunderstorms produced flash flooding and large hail in southeast South Dakota from late evening of May 25th into the morning of May 26th. While many of the storms were in the far eastern part of the state, including the Sioux Falls area, there were also scattered storms further west.

Lincoln County 3 SW Sioux Falls 26 0600CST 0 0 0.00K 0.00K Flood 29 Minor flooding of the Big Sioux River affected lowlands including some farmland near the river.

Union County 8 ENE Alcester 26 0600CST North Sioux City 30 1800CST 0 0 0.00K 0.00K Flood

497 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, Southeast

Minor to briefly major flooding of the Big Sioux River affected a significant amount of farmland, with other lowlands and several roads also being flooded. The river crested at 4.47 feet above flood stage east of Spink on May 28th.

Heavy rain caused the big Sioux River to flood from the south end of Sioux Falls in Lincoln County to Union County in late May. The flooding briefly reached major status in Union County.

Jerauld County 8 W Wessington Spgs 26 0715CST 0 0 0.00K 0.00K Hail (1.25)

Thunderstorms produced flash flooding and large hail in southeast South Dakota from late evening of May 25th into the morning of May 26th. While many of the storms were in the far eastern part of the state, including the Sioux Falls area, there were also scattered storms further west.

Lincoln County 4 SSE Canton 27 0030CST 3 NE Moe 0230CST 0 0 0.00K 0.00K Flash Flood

Heavy rainfall of 4 inches caused flooding of roads. Thunderstorms produced heavy rain which caused flash flooding of roads south of Canton on the morning of May 27th.

Clay County 6 NE Wakonda 27 0600CST 0 0 0.00K 0.00K Flood 31 Heavy rain caused minor farmland and other lowland flooding of the Vermillion River. The river crested at 1.1 feet above flood stage near Wakonda on May 30th. Turner County 2 NE Davis 27 0600CST 5 SE Centerville 29 1800CST 0 0 0.00K 0.00K Flood

Heavy rain caused minor farmland and other lowland flooding of the Vermillion River. The river crested at 2.0 feet above flood stage near Davis on May 28th. Heavy rain caused minor flooding of the Vermillion River, with lowlands including some farmland flooded.

Brule County 1 N Chamberlain Arpt 27 2300CST 0 0 0.00K 0.00K Thunderstorm Wind (61MG)

A thunderstorm produced a 70 mph wind gust at Chamberlain on the late evening of May 27th. Note: The measured wind gust of 61 knots is equivalent to 70 mph. SOUTH DAKOTA, West Shannon County Kyle 16 1700MST 1707MST 0 0 0.00K 0.00K Hail (0.75)

A thunderstorm produced hail to penny size in the Kyle area.

Lawrence County 2 NW St Onge 17 1330MST 0 0 0.00K 0.00K Hail (0.88)

Lawrence County 3 ESE Spearfish 17 1403MST 0 0 0.00K 0.00K Hail (0.88)

Lawrence County 1 SE Spearfish 17 1410MST 0 0 0.00K 0.00K Hail (1.00)

Lawrence County 2 NW St Onge 17 1420MST 1430MST 0 0 0.00K 0.00K Hail (1.00)

A severe thunderstorm developed over northern Lawrence County and tracked northeast into southeastern Butte County before weakening. The storm produced hail to the size of quarters in the Spearfish and Saint Onge areas.

498 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, West Lawrence County 3 ESE Spearfish 17 1526MST 0 0 0.00K 0.00K Hail (1.00)

Lawrence County 1 E Spearfish Arpt 17 1527MST 1529MST 0 0 0.00K 0.00K Hail (1.25)

Lawrence County 6 ESE Spearfish 17 1530MST 0 0 0.00K 0.00K Hail (1.00)

Lawrence County 2 SSW St Onge 17 1538MST 0 0 0.00K 0.00K Hail (1.00)

Lawrence County 2 E Spearfish Arpt 17 1541MST 0 0 5.00K 0.00K Hail (1.75)

A thunderstorm quickly became severe near Spearfish and tracked east-northeast across western Meade County. The storm produced hail to golf ball size across northeastern Lawrence County and hail to quarter size over portions of western Meade County. Bennett County 6 N Vetal 17 1615MST 0 0 0.00K 0.00K Hail (1.75)

Bennett County 6 N Vetal 17 1615MST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

The combination of hail and wind damaged vehicles. A thunderstorm briefly became severe over eastern Bennett County and produced golf ball size hail and strong wind gusts north of Vetal. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Meade County 9 ENE Sturgis 17 1630MST 1640MST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm quickly became severe near Spearfish and tracked east-northeast across western Meade County. The storm produced hail to golf ball size across northeastern Lawrence County and hail to quarter size over portions of western Meade County. Todd County 9 ESE St Francis 17 1724CST 0 0 0.00K 0.00K Hail (0.88)

Todd County 3 WNW Rosebud 17 1740CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts were estimated at 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Todd County 5 S Mission 17 1800CST 0 0 0.00K 0.00K Hail (1.00)

A cluster of thunderstorms over Todd County produced hail to quarter size and strong wind gusts.

Meade County 3 WNW Plainview 17 1915MST 0 0 0.00K 0.00K Hail (0.88)

A thunderstorm quickly became severe near Spearfish and tracked east-northeast across western Meade County. The storm produced hail to golf ball size across northeastern Lawrence County and hail to quarter size over portions of western Meade County. Lawrence County Deadwood 17 2058MST 0 0 1.50M 0.00K Hail (1.75)

Hail damaged many vehicles.

499 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, West Meade County Union Center 17 2230MST 0 0 0.00K 0.00K Hail (0.75)

Also reported wind gusts around 50 mph. Meade County 8 SW Union Center 17 2245MST 0 0 0.00K 0.00K Hail (1.00)

Meade County 8 SW Union Center 17 2245MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts were estimated at 60 mph. A thunderstorm intensified over Lawrence County during the late evening and moved east through Meade County. The storm produced golf ball size hail in Deadwood, which damaged many vehicles in town. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Lawrence County 6 SE Deadwood 18 1145MST 1215MST 0 0 0.00K 0.00K Hail (0.88)

Lawrence County 7 SSE Deadwood 18 1145MST 0 0 0.00K 0.00K Hail (1.75)

A thunderstorm quickly became severe over southern Lawrence County and moved northeast into western Meade County. Hail to the size of golf balls was reported south of Deadwood.

Lawrence County 3 SE Spearfish 18 1215MST 0 0 0.00K 0.00K Hail (0.88)

A strong thunderstorm produced hail to nickel size in the Spearfish area.

Meade County 3 NE Tilford 18 1300MST 0 0 0.00K 0.00K Hail (1.00)

Meade County 14 ENE Sturgis 18 1315MST 0 0 0.00K 0.00K Hail (0.75)

Meade County 5 S Mud Butte 18 1440MST 0 0 0.00K 0.00K Hail (0.75)

A thunderstorm quickly became severe over southern Lawrence County and moved northeast into western Meade County. Hail to the size of golf balls was reported south of Deadwood.

Meade County 3 NNE Black Hawk 18 1450MST 0 0 0.00K 0.00K Hail (0.88)

Meade County 3 SE Piedmont 18 1450MST 0 0 0.00K 0.00K Hail (0.88)

Meade County 10 N Ellsworth Afb 18 1520MST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm developed west of Rapid City and tracked northeastward into southern Meade County, producing hail to quarter size. Ziebach County 9 WSW Red Elm 18 1530MST 1540MST 0 0 0.00K 0.00K Hail (1.75)

Ziebach County Red Elm 18 1558MST 0 0 0.00K 0.00K Hail (1.00)

A severe thunderstorm moved northeastward across Ziebach County and produced golf ball size hail in the Red Elm area. Three to five inches of rain fell in less than two hours, causing several small streams and creeks to quickly overflow their banks. Water flowed over roads and flooded pastures.

500 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, West Pennington County 5 NE Rockerville 18 1627MST 1638MST 0 0 100.00K 0.00K Hail (1.50)

Hail dented automobiles. Pennington County 6 SW Rapid City 18 1630MST 1635MST 0 0 100.00K 0.00K Hail (1.50)

Pennington County 7 SW Rapid City 18 1635MST 0 0 0.00K Hail (1.00)

Pennington County 4 SW Rapid City 18 1640MST 1645MST 0 0 0.00K 0.00K Hail (1.00)

Pennington County 4 SW Rapid City 18 1640MST 1645MST 0 0 0.00K 0.00K Hail (1.00)

Pennington County 4 SSW Rapid City 18 1642MST 0 0 100.00K 0.00K Hail (1.50)

Pennington County Rapid City 18 1645MST 0 0 150.00K 0.00K Hail (1.50)

Pennington County 1 SE Rapid City 18 1645MST 1650MST 0 0 0.00K 0.00K Hail (0.75)

A thunderstorm developed southwest of Rapid City and produced ping pong ball size hail as it moved across western and southern portions of the city. Shannon County Sharps Corner 18 1705MST 0 0 0.00K 0.00K Hail (0.88)

A thunderstorm dropped nickel size hail over Sharps Corner.

Ziebach County 12 S Dupree 18 1815MST 16 NE Cherry Creek 2000MST 0 0 5.00K 0.00K Flash Flood

Over four inches of rain fell in two hours. Runoff washed gravel off several roads.

A severe thunderstorm moved northeastward across Ziebach County and produced golf ball size hail in the Red Elm area. Three to five inches of rain fell in less than two hours, causing several small streams and creeks to quickly overflow their banks. Water flowed over roads and flooded pastures.

Pennington County 21 S Quinn 18 1815MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts were estimated at 60 mph. Strong to severe thunderstorms developed over the Badlands area and moved northeastward. Hail to quarter size and wind gusts around 60 mph were reported across the area. Heavy rain caused flash flooding over northeastern Haakon County. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Ziebach County 10 NNE Cherry Creek 18 1830MST 2300MST 0 0 0.00K 0.00K Flash Flood

Over four inches of rain fell in two hours, causing Little Cottonwood and Big Cottonwood Creeks to overflow their banks.

501 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, West

A severe thunderstorm moved northeastward across Ziebach County and produced golf ball size hail in the Red Elm area. Three to five inches of rain fell in less than two hours, causing several small streams and creeks to quickly overflow their banks. Water flowed over roads and flooded pastures.

Jackson County 2 S Cactus Flats 18 1843MST 0 0 0.00K 0.00K Hail (0.75)

Jackson County 4 E Cactus Flats 18 1850MST 0 0 0.00K 0.00K Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Jackson County 5 E Cactus Flats 18 1855MST 0 0 0.00K 0.00K Hail (1.00)

Jackson County 8 ENE Cactus Flats 18 1910MST 0 0 0.00K 0.00K Hail (0.75)

Haakon County 10 NW Kirley 18 1930MST 2130MST 0 0 0.00K 0.00K Flash Flood

Over three inches of rain fell in about two hours, causing flash flooding.

Haakon County Philip 18 1940MST 0 0 0.00K 0.00K Hail (1.00)

Strong to severe thunderstorms developed over the Badlands area and moved northeastward. Hail to quarter size and wind gusts around 60 mph were reported across the area. Heavy rain caused flash flooding over northeastern Haakon County.

Todd County 2 E Okreek 18 2136CST 2145CST 0 0 0.50K 0.00K Thunderstorm Wind (74MG)

Wind gusts to 85 mph blew tin sheets off a shelterbelt fence and broke fence posts. Note: The measured wind gust of 74 knots is equivalent to 85 mph. Butte County 1 S Belle Fourche 25 1234MST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm briefly became severe over the Belle Fourche area and produced quarter size hail.

Butte County 2 W Vale 25 1355MST 1358MST 0 0 0.00K 0.00K Hail (1.75)

Meade County 12 N Sturgis 25 1410MST 0 0 0.00K 0.00K Hail (2.00)

Butte County 2 WSW Vale 25 1425MST 0 0 50.00K 0.00K Hail (1.75)

Meade County 3 NNW Sturgis Muni Arpt 25 1435MST 0 0 0.00K 0.00K Hail (1.75)

Golf ball size hail fell at Bear Butte State Park. A long-lived supercell thunderstorm developed over southeastern Butte County and western Meade County and tracked slowly east-southeast across Meade County. The storm produced very large hail over a five-hour period.

502 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, West Harding County 12 N Camp Crook 25 1445MST 0 0 0.00K 0.00K Hail (1.75)

A cluster of severe thunderstorms moved slowly northeastward across northern Harding County. The storms produced hail to golf ball size from north of Camp Crook to the Ludlow area.

Harding County 9 NE Ralph 25 1455MST 0 0 0.00K 0.00K Hail (1.00)

Perkins County 7 NNW Lodgepole 25 1455MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts were estimated at 60 mph. A cluster of severe thunderstorms developed across far northeastern Harding and northern Perkins Counties. Large hail and gusty winds were reported across the area. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

Harding County 4 SW Ladner 25 1535MST 0 0 20.00K 0.00K Hail (1.75)

Some lambs were killed by golf ball size hail. A cluster of severe thunderstorms moved slowly northeastward across northern Harding County. The storms produced hail to golf ball size from north of Camp Crook to the Ludlow area.

Perkins County Lemmon 25 1535MST 0 0 50.00K 0.00K Hail (1.00)

A cluster of severe thunderstorms developed across far northeastern Harding and northern Perkins Counties. Large hail and gusty winds were reported across the area.

Harding County 1 SE Ladner 25 1540MST 0 0 20.00K 0.00K Hail (0.88)

A cluster of severe thunderstorms moved slowly northeastward across northern Harding County. The storms produced hail to golf ball size from north of Camp Crook to the Ludlow area.

Meade County 7 ENE Sturgis Muni Arpt 25 1549MST 0 0 0.00K 0.00K Hail (0.88)

Meade County 11 E Sturgis Muni Arpt 25 1608MST 0 0 0.00K 0.00K Hail (1.25)

Meade County 5 NE Sturgis Muni Arpt 25 1617MST 0 0 10.00K 0.00K Hail (2.50)

A long-lived supercell thunderstorm developed over southeastern Butte County and western Meade County and tracked slowly east-southeast across Meade County. The storm produced very large hail over a five-hour period.

Perkins County 10 NE Lodgepole 25 1635MST 0 0 0.00K 0.00K Hail (1.75)

A cluster of severe thunderstorms developed across far northeastern Harding and northern Perkins Counties. Large hail and gusty winds were reported across the area.

Harding County 7 NW Ludlow 25 1642MST 0 0 5.00K 0.00K Hail (1.75)

A cluster of severe thunderstorms moved slowly northeastward across northern Harding County. The storms produced hail to golf ball size from north of Camp Crook to the Ludlow area.

Meade County 13 W Hereford 25 1645MST 1650MST 0 0 0.00K 0.00K Hail (2.50)

A long-lived supercell thunderstorm developed over southeastern Butte County and western Meade County and tracked slowly east-southeast across Meade County. The storm produced very large hail over a five-hour period.

503 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, West Perkins County Lemmon 25 1655MST 1700MST 0 0 300.00K 0.00K Hail (1.75)

Hail damaged vehicles and homes in Lemmon. Perkins County Lemmon 25 1700MST 0 0 0.00K 0.00K Hail (2.00)

A cluster of severe thunderstorms developed across far northeastern Harding and northern Perkins Counties. Large hail and gusty winds were reported across the area.

Harding County 8 NNW Camp Crook 25 1700MST 0 0 0.00K 0.00K Hail (1.50)

A severe thunderstorm moved from southeastern Montana and clipped northwestern Harding County, producing large hail north of Camp Crook. Meade County 12 N (RCA)Ellsworth Afb R 25 1715MST 0 0 20.00K 0.00K Hail (2.75)

A long-lived supercell thunderstorm developed over southeastern Butte County and western Meade County and tracked slowly east-southeast across Meade County. The storm produced very large hail over a five-hour period.

Harding County 4 NNE Ludlow 25 1725MST 0 0 0.00K 0.00K Hail (1.50)

A cluster of severe thunderstorms moved slowly northeastward across northern Harding County. The storms produced hail to golf ball size from north of Camp Crook to the Ludlow area.

Harding County 6 ESE Camp Crook 25 1745MST 0 0 0.00K 0.00K Hail (1.00)

A severe thunderstorm developed over southwestern Harding County and tracked northeastward. Hail to the size of quarters was reported from near Harding to Ludlow.

Meade County 8 SSE Hereford 25 1800MST 1815MST 0 0 15.00K 0.00K Hail (1.75)

A long-lived supercell thunderstorm developed over southeastern Butte County and western Meade County and tracked slowly east-southeast across Meade County. The storm produced very large hail over a five-hour period.

Butte County 18 NW Castle Rock 25 1820MST 0 0 0.00K 0.00K Hail (1.00)

A severe thunderstorm developed across north central Butte County and produced hail to quarter size before weakening.

Perkins County 3 ENE Shadehill 25 1830MST 1840MST 0 0 20.00K 0.00K Hail (3.00)

A severe thunderstorm developed over northeastern Perkins County and dropped large hail near Shadehill.

Harding County 8 N Ralph 25 1840MST 0 0 0.00K 0.00K Hail (1.75)

A cluster of severe thunderstorms moved slowly northeastward across northern Harding County. The storms produced hail to golf ball size from north of Camp Crook to the Ludlow area.

Meade County 8 SSW Elm Springs 25 1845MST 0 0 0.00K 0.00K Hail (1.75)

A long-lived supercell thunderstorm developed over southeastern Butte County and western Meade County and tracked slowly east-southeast across Meade County. The storm produced very large hail over a five-hour period.

504 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, West Butte County 7 NNE Hoover 25 1850MST 0 0 0.00K 0.00K Hail (1.00)

A severe thunderstorm developed across north central Butte County and produced hail to quarter size before weakening.

Harding County 3 NNW Ludlow 25 1900MST 0 0 0.00K 0.00K Hail (1.00)

A severe thunderstorm developed over southwestern Harding County and tracked northeastward. Hail to the size of quarters was reported from near Harding to Ludlow.

Harding County 4 SSW Camp Crook 25 1945MST 0 0 0.00K 0.00K Hail (1.25)

A long-lived severe thunderstorm tracked from southeastern Montana across northwestern South Dakota during the mid to late evening. The storm produced very large hail and gusty winds across central Harding, southern Perkins, and northern Ziebach Counties. Haakon County 3 N Kirley 25 2005MST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm briefly became severe over northern Haakon County and produced quarter size hail near Kirley.

Harding County Reva 25 2038MST 2042MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts were estimated at 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Perkins County 11 SSW Bison 25 2145MST 0 0 10.00K 0.00K Hail (2.50)

A long-lived severe thunderstorm tracked from southeastern Montana across northwestern South Dakota during the mid to late evening. The storm produced very large hail and gusty winds across central Harding, southern Perkins, and northern Ziebach Counties. Meade County (D07)Faith Arpt 25 2216MST 0 0 0.00K 0.00K Thunderstorm Wind (56MG) Note: The measured wind gust of 56 knots is equivalent to 64 mph.

Ziebach County 3 ENE Red Elm 25 2230MST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm developed near Faith and quickly became severe as it tracked eastward across Ziebach County.

Perkins County 8 WNW Usta 25 2250MST 0 0 0.00K 0.00K Hail (2.75)

Perkins County 8 WNW Usta 25 2250MST 0 0 10.00K 0.00K Thunderstorm Wind (61EG)

The combination of wind and large hail broke windows and damaged shingles.

A long-lived severe thunderstorm tracked from southeastern Montana across northwestern South Dakota during the mid to late evening. The storm produced very large hail and gusty winds across central Harding, southern Perkins, and northern Ziebach Counties. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Ziebach County 3 ENE Red Elm 25 2305MST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm developed near Faith and quickly became severe as it tracked eastward across Ziebach County.

505 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, West Perkins County 7 SSE Meadow 25 2330MST 0 0 0.00K 0.00K Thunderstorm Wind (54MG) Note: The measured wind gust of 54 knots is equivalent to 62 mph.

Meade County (D07)Faith Arpt 25 2334MST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)

A long-lived severe thunderstorm tracked from southeastern Montana across northwestern South Dakota during the mid to late evening. The storm produced very large hail and gusty winds across central Harding, southern Perkins, and northern Ziebach Counties. Note: The measured wind gust of 52 knots is equivalent to 60 mph. Pennington County 1 SE Rapid City 27 0909MST 0 0 0.00K 0.00K Hail (0.75)

Meade County 3 NNE Ellsworth Afb 27 0925MST 0930MST 0 0 0.00K 0.00K Hail (1.75)

A storm briefly became severe as it moved north from Rapid City into south central Meade County. The storm produced hail to golf ball size near Ellsworth Air Force Base.

Lawrence County 2 E Spearfish Arpt 27 1040MST 0 0 0.00K 0.00K Hail (0.88)

Lawrence County 2 SSW St Onge 27 1040MST 0 0 0.00K 0.00K Hail (1.00)

Lawrence County 3 SE St Onge 27 1050MST 0 0 0.00K 0.00K Hail (1.00)

Time estimated from radar. A severe thunderstorm developed between Spearfish and Deadwood and moved slowly northeastward into southeastern Butte County. The storm produced hail to the size of golf balls from east of Spearfish to near Newell.

Butte County 6 W Hoover 27 1125MST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail fell over north central Butte County.

Lawrence County Whitewood 27 1140MST 0 0 0.00K 0.00K Hail (0.88)

Lawrence County Whitewood 27 1140MST 0 0 0.00K 0.00K Hail (0.88)

Butte County 4 ENE Newell 27 1245MST 0 0 0.00K 0.00K Hail (1.00)

A severe thunderstorm developed between Spearfish and Deadwood and moved slowly northeastward into southeastern Butte County. The storm produced hail to the size of golf balls from east of Spearfish to near Newell.

Meade County Tilford 27 1310MST 0 0 0.00K 0.00K Hail (1.00)

Meade County 4 NNW Tilford 27 1326MST 0 0 0.00K 0.00K Hail (1.50)

A severe thunderstorm developed near Tilford and produced large hail before weakening as it moved onto the plains.

506 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, West Perkins County 3 SW Meadow 27 1417MST 0 0 0.00K 0.00K Hail (0.75)

Perkins County Meadow 27 1425MST 0 0 0.00K 0.00K Hail (1.00)

A line of thunderstorms developed over Perkins County and moved eastward. They produced quarter size hail in Meadow.

Meade County 2 NNW Stoneville 27 1450MST 1455MST 0 0 0.00K 0.00K Hail (0.75)

A line of thunderstorms expanded across west central South Dakota, producing hail and gusty winds across portions of the area. Heavy rain caused flooding over portions of eastern Meade County.

Jackson County 4 WNW Cottonwood 27 1550MST 0 0 0.00K 0.00K Hail (1.75)

A severe thunderstorm developed over the Badlands and briefly became severe across northwestern Jackson County, producing golf ball size hail near Cottonwood.

Meade County 9 ESE Opal 27 1630MST 14 S Faith 1830MST 0 0 10.00K 0.00K Flash Flood

Two to three inches of rain fell in less than two hours, causing small streams to overflow their banks and overwhelming culverts. Water was reported over portions of Old Marcus Road and fences were destroyed.

Pennington County 7 E Creighton 27 1630MST 0 0 0.00K 0.00K Hail (0.88)

Pennington County 7 E Creighton 27 1630MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts were estimated at 60 mph. A line of thunderstorms expanded across west central South Dakota, producing hail and gusty winds across portions of the area. Heavy rain caused flooding over portions of eastern Meade County. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Custer County 1 ENE Custer 27 1650MST 0 0 0.00K 0.00K Hail (0.75)

Custer County 1 S Pringle 27 1720MST 0 0 0.00K 0.00K Hail (1.25)

Custer County Wind Cave 27 1730MST 0 0 150.00K 0.00K Hail (1.50)

Ping pong ball size hail damaged vehicles at Wind Cave National Park. Time was estimated from radar.

Fall River County 9 W Hot Spgs 27 1731MST 0 0 0.00K 0.00K Hail (1.75)

Fall River County Hot Spgs 27 1755MST 0 0 0.00K 0.00K Hail (1.00)

Fall River County 7 WSW Angostura Reservoir 27 1800MST 0 0 0.00K 0.00K Hail (1.75)

507 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, West Fall River County Hot Spgs 27 1800MST 0 0 0.00K 0.00K Hail (1.00)

Fall River County Angostura Reservoir 27 1805MST 1810MST 0 0 0.00K 0.00K Hail (0.88)

Fall River County 2 NW Hot Spgs Muni Arpt 27 1808MST 0 0 0.00K 0.00K Hail (1.00)

A supercell thunderstorm developed over the southern Black Hills and moved southeastward onto the plains of southwestern South Dakota. Hail to the size of golf balls fell from Pringle to the Hot Springs area to Angostura Reservoir.

Jackson County Interior 27 1815MST 0 0 0.00K 0.00K Hail (0.88)

A line of thunderstorms expanded across west central South Dakota, producing hail and gusty winds across portions of the area. Heavy rain caused flooding over portions of eastern Meade County.

Fall River County 5 ESE Hot Spgs 27 1816MST 0 0 0.00K 0.00K Hail (0.88)

A supercell thunderstorm developed over the southern Black Hills and moved southeastward onto the plains of southwestern South Dakota. Hail to the size of golf balls fell from Pringle to the Hot Springs area to Angostura Reservoir.

Jackson County 4 SW Wanblee 27 1840MST 0 0 0.00K 0.00K Hail (1.00)

Jackson County 10 ENE Belvidere 27 1940MST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

A line of thunderstorms expanded across west central South Dakota, producing hail and gusty winds across portions of the area. Heavy rain caused flooding over portions of eastern Meade County. Note: The measured wind gust of 53 knots is equivalent to 61 mph. Tripp County (SFD)Winner Arpt 27 2224CST 2228CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)

Strong wind gusts developed from decaying thunderstorms over the Winner area. Note: The measured wind gust of 54 knots is equivalent to 62 mph. Bennett County 1 SE Allen 28 1713MST 1718MST 0 1 25.00K 0.00K Thunderstorm Wind (70EG)

Straight-line wind damage was observed along BIA Road 22 southeast of Allen. The winds tore part of the roof off a small building and ripped shingles and metal roofing off two houses. A mobile home was rolled and completely smashed. A large cottonwood tree was snapped. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Bennett County 1 SE Allen 28 1713MST 1714MST 0.1 20 0 1 100.00K 0.00K Tornado (EF1)

A tornado touched down on the west side of Allen Road south of Allen and rolled a mobile home down a hill. It tore off the roof and collapsed several walls of a small stick built house on the east side of the road before dissipating.

A line of thunderstorms produced a small tornado that touched down briefly and strong straight line winds south of Allen.

Butte County 6 ENE Belle Fourche Res 29 1720MST 8 NE Newell 2100MST 0 0 150.00K 0.00K Flash Flood

508 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, West

Three to five inches of rain fell in a few hours and caused flash flooding in southeastern Butte County. Willow Creek, Horse Creek, Indian Creek, and Whitewood Creek quickly rose over their banks. At least two private stock dams failed southeast of Nisland. Numerous roads, culverts, and fences were damaged.

Pennington County 5 NW Rapid City 29 1720MST 1 W (RCA)Ellsworth Afb 2100MST 0 0 300.00K 0.00K Flash Flood

Two to six inches of rain caused flash flooding in the Rapid City area. Rapid Creek overflowed its banks and flooded portions of the bike path and several roads. Flooding was reported along Sheridan Lake Road in the Spring Brook Acres area. Fifth Street was flooded between Minnesota Street and Catron Boulevard. Arrowhead and Meadowbrook golf courses were flooded and a cart bridge was destroyed. Water was three feet high against Meadowbrook Elementary School. A few structures along Rapid Creek were flooded near South Valley Drive.

Meade County 13 NNW Sturgis 29 1730MST 16 NE Sturgis Muni Arpt 2100MST 0 0 50.00K 0.00K Flash Flood

Three to five inches of rain fell in a few hours and caused flash flooding east of Interstate 90 in southwestern Meade County. Street flooding was reported in Sturgis and several rural roads north of Sturgis were inundated.

Butte County 12 WSW Castle Rock 29 2100MST 30 0930MST 0 0 25.00K 0.00K Flood

After heavy during the early evening caused flash flooding in south central Butte County, additional rain overnight exacerbated the flooding. High water from several tributaries caused minor flooding along the Belle Fourche River, which was two feet deep over the Bismark Bridge east of Vale.

Meade County 13 NNW Sturgis 29 2100MST 17 SW Fairpt 30 1100MST 0 0 0.00K 0.00K Flood

High water in small tributaries produced minor flooding along the Belle Fourche River.

Pennington County 5 NW Rapid City 29 2100MST 4 WNW New Underwood 30 1100MST 0 0 0.00K 0.00K Flood

Rapid Creek overflowed its banks and flooded portions of the bike path and several roads after thunderstorms dropped two to six inches of rain in a few hours. Flooding continued overnight in Rapid Valley. A few structures were flooded near South Valley Drive and Green Valley Drive. Thunderstorms developed along the eastern slopes of the Black Hills and adjacent plains from Nisland to Sturgis to the Rapid City area. As these storms moved toward the northwest, they redeveloped and became stationary over the eastern foothills. As much as six inches of rain fell in a few hours. Flash flooding was reported in Rapid City; Sturgis; and rural areas of Butte, Meade, and Pennington Counties. Runoff from the rainfall quickly inundated city streets, overflowed small creeks, and breached a few private stock dams.

TENNESSEE, Central

TNZ008-027 Davidson - Sumner 03 1800CST 1900CST 0 0 1.002M 0.00K Strong Wind

Strong southerly gradient winds developed during the afternoon and evening hours on May 3 across Middle Tennessee. Two reports of wind damage were received. Lawrence County 2 SSE Flatwoods 04 0800CST 1000CST 0 0 1.00K 0.00K Flood

A water rescue of a family of four took place at a low water crossing on Mount Ararat Road. No injuries.

509 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, Central Rutherford County 2 ENE Rucker 04 0900CST 1100CST 0 0 0.00K 0.00K Flood

A bridge on Elam Mill Road was reportedly closed due to high water.

A slow moving upper level low pressure system brought widespread rainfall to Middle Tennessee on May 4. Some localized flooding was reported. Rutherford County 1 SE Royer Estates 06 0900CST 1100CST 0 0 0.00K 0.00K Flood

A twitter user reported Veals Road was water covered in various places along the road.

A slow moving low pressure system developed some brief but heavy rain during the morning hours.

Davidson County Hermitage 19 0404CST 0425CST 0 0 0.00K 0.00K Hail (0.88)

A trained spotter reported nickel sized hail in the city of Hermitage.

Cumberland County 1 NW Dripping Spgs 19 1130CST 1 N Rinnie 1700CST 0 0 1.00M 0.00K Flash Flood

The emergency manager of Cumberland County reported flash flooding across the entire county. There were multiple road closures as well as two homes inundated by six to eight inches of flood waters in downtown Crossville resulting in evacuations. Additionally, WATE Channel 6 in Knoxville reported at least five vehicles stalled due to flooding with one such stalled vehicle resulting in a rescue of an elderly woman trapped in her vehicle. Much of the flood damage occurred in the city of Crossville.

A creek near Hillbilly Hollow Road off of Chestnut Hill Road in Cumberland County. Photo credit: Scott Bowmer. Dekalb County Smithville 19 1304CST 1314CST 0 0 0.00K 0.00K Hail (1.00)

A trained spotter reported one inch diameter hail in the city of Smithville.

510 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, Central Warren County 5 E Mc Minnville 19 1334CST 1344CST 0 0 0.00K 0.00K Hail (1.00)

A trained spotter reported one inch diameter hail five miles east of McMinnville.

Warren County 1 SE Faulkner Spgs 19 1353CST 1403CST 0 0 0.00K 0.00K Hail (1.00)

A report was received via Facebook of one inch diameter hail in the Faulkner Springs area north of McMinnville.

A cluster of slow moving thunderstorms with heavy rain and large hail impacted mainly eastern Middle Tennessee throughout the day. Giles County 1 N Elkmont Spgs 19 1355CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

A NWS Storm Survey conducted by WFO HUN noted a tree with large limbs snapped along HWY 7 just east of Pleasant Hill Road. Isolated severe thunderstorms embedded in heavy rain showers impacted southern Middle Tennessee during the mid afternoon hours. These storms originated in northern AL and MS before moving into southern Middle Tennessee producing heavy rain and severe winds. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Cannon County 3 E Woodbury 19 1442CST 1620CST 0 0 0.00K 0.00K Flash Flood

The Cannon County Sheriff's Office dispatch reported the Stones River Road just east of Woodbury was closed due to flash flooding. Rutherford County Milton 19 1512CST 1517CST 0 0 0.00K 0.00K Hail (1.00)

A trained spotter reported one inch diameter hail in the community of Milton.

A cluster of slow moving thunderstorms with heavy rain and large hail impacted mainly eastern Middle Tennessee throughout the day. Hickman County 2 N Aetna 21 1057CST 1104CST 0 0 0.00K 0.00K Hail (0.75)

Hickman County Emergency Management reported three-quarter inch hail falling seven miles south-southwest of Centerville.

Davidson County Nashville 21 1120CST 1133CST 0 0 50.00K 0.00K Thunderstorm Wind (50EG)

The Davidson County Emergency Manager reported over 25 different tree down or power lines down reports across Metro Nashville. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Williamson County Franklin 21 1124CST 1138CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

A Twitter report was received reporting trees and powerlines down along a few roads in Franklin.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

511 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, Central Wilson County 1 E Silver Bottom 21 1147CST 1157CST 0 0 2.50K 0.00K Thunderstorm Wind (50EG)

A report came via Twitter of trees and power lines down along Saddle Wood Drive in Mount Juliet due to gust front winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Wilson County Mt Juliet 21 1147CST 1157CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

A report was received via Amateur Radio of shingles blown off a home in Mount Juliet from gust front winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Sumner County 1 SE Cedar Grove 21 1152CST 1202CST 0 1 250.00K 0.00K Thunderstorm Wind (60EG)

Severe gust front winds caused a large road construction crane to collapse onto a car that was driving on the highway 109 bridge over the Cumberland River about 2 miles south of Gallatin. The car had two occupants. One was hospitalized with minor injuries. The other was uninjured. Note: The estimated wind gust of 60 knots is equivalent to 69 mph.

Construction crane collapsed onto vehicle with two occupants. Photo courtesy of WSMV Channel 4 - Nashville. Rutherford County Smyrna Arpt 21 1205CST 1210CST 0 0 0.00K 0.00K Hail (0.88)

Amateur Radio operator reported nickel sized hail at the Smyrna Airport (KMQY).

Wilson County 3 N Lebanon 21 1209CST 1220CST 0 0 0.00K 0.00K Hail (1.00)

A trained spotter reported quarter sized hail three miles north of Lebanon.

Rutherford County Smyrna Arpt 21 1209CST 0 0 0.00K 0.00K Thunderstorm Wind (66MG)

The ASOS at the Smyrna Airport (KMQY) measured a wind gust of 76 mph.

Note: The measured wind gust of 66 knots is equivalent to 76 mph.

512 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, Central Smith County Carthage 21 1215CST 1252CST 0 0 20.00K 0.00K Thunderstorm Wind (60EG)

A report was received via 911 dispatch of trees down across Smith county.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Smith County Carthage 21 1233CST 1243CST 0 0 5.00K 0.00K Thunderstorm Wind (60EG)

A trained spotter reported multiple trees down across the city of Carthage.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Jackson County Gainesboro 21 1243CST 1320CST 0 0 10.00K 0.00K Thunderstorm Wind (60EG)

Local police reported trees downed across Jackson county. Power was also reported out across half the county.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Bedford County 2 N Shelbyville 21 1248CST 1258CST 0 0 0.00K 0.00K Hail (0.88)

An amateur radio operator reported dime to nickel sized hail falling two miles north of the city of Shelbyville.

Clay County Celina 21 1248CST 1344CST 0 0 10.00K 0.00K Thunderstorm Wind (60EG)

Several trees were reported down across the county with multiple power outages.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Putnam County 1 ENE Double Spgs 21 1257CST 1312CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

A roof was blown off a house on Plunk Whitson Road in the Double Springs community.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Putnam County 4 WNW Cookeville Arpt 21 1257CST 1312CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees were reported down near the intersection of Knights Chapel Road and Shipley Road in northwest of Cookeville.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Putnam County Double Spgs 21 1257CST 1312CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

A roof was blown off of a barn at the intersection of West Gate Road and Highway 70.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Jackson County 2 WSW Old Antioch 21 1302CST 1312CST 0 0 5.00K 0.00K Thunderstorm Wind (60EG)

A roof was reportedly blown off a house on Sugar Creek Road.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. 513 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, Central Clay County Celina 21 1316CST 0 0 1.00K 0.00K Lightning

Lightning struck a home in Celina causing damage. Type of damage was not specifically stated.

Overton County 7 WNW Livingston 21 1320CST 1330CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

The public reported a tree falling on a house seven miles west-northwest of Livingston due to winds estimated over 50 mph.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. White County 3 NW Sparta White Co Arpt 21 1322CST 1332CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

An amateur radio operator reported winds in excess of 60 mph near the Sparta Airport. Tree limbs were also reported downed.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Overton County Muddy Pond 21 1323CST 1328CST 0 0 0.00K 0.00K Hail (0.88)

Nickel sized hail reported near Muddy Pond by the public. Putnam County 2 WNW Poplar Grove 21 1324CST 1334CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees were reported downed near Dry Valley Road and Buck Mountain Road.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Overton County Hilham 21 1325CST 1335CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported a tree falling on a house on Old Union Road in the town of Hilham.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Putnam County 2 NW Cookeville Arpt 21 1325CST 1335CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A Twitter report of trees down was reported near the intersection of Dobson Branch Road and Bartlett Road in Cookeville.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Pickett County Byrdstown 21 1341CST 1356CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported a tree down on a house on Main Street in Byrdstown. Power outages were also reported in the city.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Fentress County 1 W Armathwaite 21 1359CST 1409CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported a large tree blocking traffic on Mount Helen Road east of Allardt. The tree caused an accident but there were no injuries. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

514 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, Central Fentress County Grimsley 21 1400CST 1410CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

The county emergency manager reported numerous trees down. A carport was damaged as well due to the winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Perry County 1 SSE Linden 21 1952CST 2002CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

The Sheriff's Department in Perry county reported a tree down on Old Linden Highway near Linden.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Davidson County 1 NW West Meade 21 2103CST 2113CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Local law enforcement reported downed power lines on Gower Road in West Nashville.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Davidson County 1 ENE Vaughns Gap 21 2105CST 2115CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

A tree and power line were reported down by local broadcast media on Page Road in Belle Meade.

Three separate squall line/bowing segments began impacting the Middle Tennessee area around mid day and ending around midnight. These systems produced mostly damaging straight line winds with some hail. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. TENNESSEE, East Anderson County 1 SSW Frost Bottom 17 1935EST 0 0 Thunderstorm Wind (50EG)

Two trees were reported down near highway 61 between Oliver Springs and Clinton.

A weak upper level trough moved across the Mid South generating isolated severe thunderstorms as it moved into a slightly unstable environment over East Central Tennessee. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

Bledsoe County 2 NE Pikeville 18 2312CST 19 0012CST 0 0 3.00K 0.00K Flash Flood

Law Enforcement reported a mud slide and roadway flooding just east of Pikeville.

Rhea County 6 ENE Dayton 19 0012EST 0112EST 0 0 0.00K 0.00K Heavy Rain

County Road 302 closed due to flooding. Rhea County 1 SW Evensville 19 1045EST 0 0 Thunderstorm Wind (50EG)

Several trees were reported down across the county. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Bledsoe County 6 N Pikeville 19 1050CST 1155CST 0 0 10.00K 0.00K Flash Flood

Extensive flooding over the northern half of the county.

515 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, East Hamilton County 1 E Sale Creek 19 1130EST 0 0 Thunderstorm Wind (50EG)

Several trees were reported down with damage to a few campers.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Anderson County 4 SSW Oak Ridge 19 1205EST 0 0 Thunderstorm Wind (56MG)

A wind gust of almost 70 mph was measured on the west side of Oak Ridge.

Note: The measured wind gust of 56 knots is equivalent to 64 mph. Knox County Rocky Hill 19 1220EST 0 0 Hail (1.00)

Quarter size hail was reported seven miles southwest of Knoxville.

Knox County Bearden 19 1240EST 0 0 Hail (1.25)

Half dollar size hail was reported at the Bearden community in Knoxville.

Knox County 1 SW West Emory 19 1245EST 0 0 Hail (1.00)

Quarter size hail was reported along Kingston Pike near Gallaher View Road in West Knoxville.

Anderson County 1 N South Clinton 19 1245EST 0 0 Thunderstorm Wind (50EG)

Several trees were reported down on roadways in various parts of the county.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Anderson County 2 SE Oak Ridge 19 1247EST 0 0 Hail (1.25)

Several trees were reported down and half dollar size hail occurred in Oak Ridge.

Bledsoe County 6 N Pikeville 19 1300CST 1500CST 0 0 5.00K 0.00K Flash Flood

Several roads closed or impassable across the county. Rhea County 3 NE Dayton 19 1400EST 1530EST 0 0 50.00K 0.00K Flash Flood

Significant flooding of a church and a local corner market on Dayton Mountain Hwy. Debris from church rushed downstream. TV media covered. Marion County 1 ESE Glover Hill 19 1401CST 0 0 Thunderstorm Wind (50EG)

Several trees were reported down in Jasper. Orographics and a slightly to moderately unstable atmosphere appeared to play a role in severe thunderstorms that formed on the Cumberland Plateau across Southeast Tennessee as well as in the communities of Oak Ridge and Knoxville. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

516 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, East Scott County 5 SSW Elva 21 1530EST 0 0 Thunderstorm Wind (50EG)

A few trees were reported down in the Big South Fork National River and Recreation Area.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Scott County 1 E Robbins 21 1535EST 0 0 Thunderstorm Wind (50EG)

A few trees were reported down in Robbins. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Blount County 1 SW Happy Vly 21 1700EST 0 0 Thunderstorm Wind (50EG)

Trees and power lines were downed in Happy Valley. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Greene County 1 E Greeneville 21 1700EST 0 0 Thunderstorm Wind (50EG)

Several trees were reported down across the county. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Blount County Maryville 21 1730EST 0 0 Thunderstorm Wind (50EG)

Two trees were reported down in Maryville. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Jefferson County Dandridge 21 1730EST 0 0 Thunderstorm Wind (50EG)

Several trees were downed across the county with a concentration near Dandridge.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Sevier County 1 S Catlettsburg 21 1730EST 0 0 Thunderstorm Wind (50EG)

A few trees were reported down across the county. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Hamblen County 1 WSW Morristown 21 1815EST 0 0 Thunderstorm Wind (50EG)

Twelve trees were reported down in the county. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Jefferson County 1 W Jefferson City 21 1830EST 0 0 Thunderstorm Wind (50EG)

A few trees were reported down near East Dumplin Valley Road.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Sevier County Sevierville Arpt 21 1900EST 2030EST 0 0 1.00K 0.00K Flash Flood

Flash flooding around intersection of Earnest McMahon Rd and Pullen Road.

Greene County 1 E Greeneville 21 1920EST 0 0 Thunderstorm Wind (50EG)

Several trees were reported down across the county. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

517 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, East Greene County 1 E Greeneville 21 1924EST 0 0 Thunderstorm Wind (50EG)

Several trees were reported down across the county. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Sullivan County 1 SE Galloway Mill 21 1925EST 0 0 Hail (1.00)

Quarter size hail was reported in Bluff City. Sevier County 6 E Kodak 21 1930EST 2100EST 0 0 5.00K 0.00K Flash Flood

Cars stranded on Black Oak Ridge Road near southwest end of Douglas Lake.

Sullivan County 1 SE Galloway Mill 21 1940EST 0 0 Hail (1.00)

Quarter size hail was reported in Bluff City. Sullivan County Blountville 21 1945EST 0 0 Thunderstorm Wind (50EG)

Several trees were reported down across the county. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Washington County 1 SW Jonesboro 21 1945EST 0 0 Thunderstorm Wind (50EG)

Many trees were reported down across the county. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Carter County 1 N Hampton 21 1950EST 2230EST 0 0 15.00K 0.00K Flash Flood

Roads washed out by flash flooding. Carter County 5 SW Hampton 21 2020EST 2230EST 0 0 20.00K 0.00K Flash Flood

Ritter Town Road and Browns Branch Road impacted by water and debris. Some homes with water in basements. A few evacuations occurred. Car stranded in water. Unicoi County 1 W Erwin 21 2030EST 3 NNE Unicoi 2230EST 0 0 40.00K 0.00K Flash Flood

Widespread flash flooding over the northern portion of the county from Erwin northward. Numerous road closures. Water intrusion into a dozen homes and several businesses. Roads undercut. Two evacuations.

An outflow boundary from a complex of thunderstorms building across the Mid South interacted with moderate to strongly unstable air across Eastern Tennessee mainly north of interstate 40. The slow moving storms produced mainly wind damage with some hail as well as some flash flooding.

Sullivan County 2 W Vance 22 1350EST 0 0 Hail (1.00)

Quarter size hail was reported in Piney Flats. Rhea County 2 SSW Ideal Vly 22 1354EST 0 0 Hail (1.00)

Quarter size hail was reported two miles southwest of Spring City.

518 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, East Greene County 1 S Camp Creek 22 1418EST 0 0 Hail (1.00)

Quarter size hail was reported at Camp Creek. Hamblen County 1 WSW Morristown 22 1440EST 0 0 Thunderstorm Wind (50EG)

A few trees were reported down on Cameron Road in Morristown.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cocke County 1 SW Northport 22 1458EST 0 0 Thunderstorm Wind (50EG)

Numerous trees were reported down on roads near Newport. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Greene County 1 E Greeneville 22 1518EST 0 0 Thunderstorm Wind (50EG)

Several trees were reported down across the county. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Hawkins County 1 NW Mt Carmel 22 1548EST 1556EST 0 0 Thunderstorm Wind (61EG)

Several trees were reported down at Ross Campground in Church Hill.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Hawkins County Frisco 22 1558EST 1605EST 0 0 Thunderstorm Wind (70EG)

Fifteen to thirty trees were downed, uprooted, or snapped off at the top with minor structural damage in the Dickerson area.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Johnson County 1 SW Mountain City 22 1740EST 0 0 Thunderstorm Wind (50EG)

A few trees were reported down in the vicinity of Mountain City.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Sevier County 1 S Catlettsburg 22 1810EST 0 0 Thunderstorm Wind (50EG)

Several trees were reported down across the county. Severe thunderstorms formed along an outflow boundary across the Mid South and moved into the Southern Appalachians during the afternoon and early evening. The result of the early Spring event was mostly wind damage along with some small hail. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

TENNESSEE, West Carroll County 2 NNE Vale 10 1000CST 2 W Trezevant 1400CST 0 0 50.00K 0.00K Flash Flood

Heavy rain produced flash flooding across much of northern and western Carroll County. About 20 roads were closed due to flooding. A couple of homes on Williams Street and Northwood Drive in Huntingdon were evacuated due to flooding.

An upper level disturbance interacted with a moist and unstable airmass across West Tennessee to produce numerous showers and thunderstorms during the morning of May 10, 2013. Storms continually moved across Carroll County resulting in several inches of rainfall and numerous reports of flash flooding.

519 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, West Tipton County Burlison 21 0130CST 0140CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds tore off half of a barn roof and produced minor shingle damage to a couple of homes near Burlison. A tree was also knocked down in the area. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Shelby County 4 N Collierville 21 1630CST 1640CST 0 0 0.00K Hail (1.00)

Quarter size hail fell at the intersection of Collierville-Arlington Road and Raleigh-Lagrange Road, north of Collierville.

Fayette County 2 NNW Hickory Withe 21 1704CST 3 SW Center Pt 2200CST 0 0 0.00K 0.00K Flash Flood

Heavy rain produced flash flooding over portions of Northwest Fayette County. The intersection of Hwy 196 and Orr Road was flooded as a result. Shelby County 2 N Mallory 21 1704CST 2200CST 0 0 30.00K 0.00K Flash Flood

Heavy rain produced flash flooding over much of Shelby County. Memphis International Airport received 4.8 inches of rain over a span of a couple of hours. Interstate 55 near 3rd Street near Downtown Memphis was closed as a result of the flooding. Flooding was also reported near Macon Road and Houston Levee Road in Cordova, Brunswick Road and Old Brownsville Road in Northern Shelby County. Two people were trapped in a flooded car at Lamar and East Shelby Drive.

An upper trough and an associated cold front moved into the Lower Mississippi Valley during the evening of May 21st, 2013. Several rounds of showers and thunderstorms developed ahead of the system affecting the Mid-South. Some storms became severe producing large hail, damaging winds, and flash flooding. The first round of storms moved through during the morning hours while a second round affected the region during the afternoon into the evening.

Hardeman County 4 SE Bolivar 30 1718CST 1723CST 0 0 0.00K 0.00K Hail (0.75)

Madison County 1 S Malesus 30 1745CST 3 WNW Spring Creek 1815CST 0 0 0.00K Thunderstorm Wind (70EG)

A swath of sporadic straight line wind damage stretched across Madison County. The damage started south of Bemis continued into Jackson then extended north roughly between Old Medina Road and Christmasville Road to the Gibson County line. Numerous trees were knocked down with the most intense damage north of North Parkway in Jackson. A large tree fell on a house in Bemis causing extensive damage. Another large tree fell and destroyed a barber shop in Bemis. Numerous trees were knocked down on Hickory Hollow Drive east of the center of Jackson where one tree fell and damaged a porch of a home. A middle school roof in Jackson was damaged. A tree damaged a home in North Jackson. A metal barn and outbuilding on Christmasville road were destroyed.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Madison County Jackson 30 1800CST 3 WNW Spring Creek 1815CST 0 0 0.00K Hail (1.00)

Quarter size hail fell from Jackson to the Gibson County line.

Gibson County Medina 30 1815CST 2 N Sitka 1830CST 0 0 0.00K Thunderstorm Wind (52EG)

Straight line winds knocked down a several trees from Medina to Milan. A few trees were knocked down on Stinson Road west of Milan. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

520 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, West Weakley County 2 SSW Martin 30 1855CST 1900CST 0 0 0.00K Thunderstorm Wind (61EG)

Straight line winds knocked down numerous trees and power lines around Martin. One tree fell on a car.

An upper level disturbance moving through the Mid-South interacted with a moist and unstable airmass to produce scattered thunderstorms during the afternoon and evening hours of May 30, 2013 . A few of the storms became severe with large hail and damaging winds. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Tipton County 1 SSE Walnut Grove 31 0504CST 1 SSW Avrett 0510CST 0 0 28.00K 0.00K Thunderstorm Wind (50EG)

Straight line winds produced damaged to a couple of homes northwest of Covington. The homes had roof and some structural damage. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Tipton County 1 WSW Avrett 31 0505CST 0509CST 0.83 250 0 0 180.00K 0.00K Tornado (EF1)

The tornado touched down on Mount Lebanon Road and tracked east destroying two homes. The wind moved cars and trucks a significant amount. There was also damage to grain bins and trees were knocked down. A shop was destroyed.

An mesoscale convective system developed over Southern Missouri and Northern Arkansas and pushed across Northeast Arkansas into West Tennessee during the early morning hours of May 31, 2013. A few severe storms produced damaging winds and flash flooding. A couple of weak tornadoes also occurred.

TEXAS, Central

TXZ049-054-064> Brown - Callahan - Coke - Coleman - Concho - Crockett - Fisher - Haskell - Irion - Jones - Kimble - 066-071>073-076> Mason - McCulloch - Menard - Nolan - Runnels - San Saba - Schleicher - Shackelford - Sterling - Sutton - 078-098>099-113> Taylor - Throckmorton - Tom Green 114-127>128-139> 140-154>155-168> 01 0000CST 170 31 2359CST 0 0 0.00K 0.00K Drought

The drought continues to impact much of West Central Texas. The U.S. Drought Monitor rated Haskell, Throckmorton, Fisher, Jones and and Shackelford Counties in the exceptional category, while the Drought Monitor placed Coke, Nolan and Schleicher Counties in the extreme drought category. The rest of the region was placed in the severe drought category.

Throckmorton County Throckmorton 01 1844CST 1847CST 0 0 0.00K 0.00K Hail (1.00)

Tom Green County 5 ESE Carlsbad 01 1915CST 1919CST 0 0 0.00K 0.00K Hail (1.00)

Shackelford County Albany 01 1923CST 1926CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Law enforcement reported a roof was torn off of a house and power lines were blown down on the north side of Albany.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Tom Green County 4 N San Angelo Res 01 1925CST 1929CST 0 0 0.00K 0.00K Hail (1.00)

521 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Central Taylor County 2 E Abilene 01 1932CST 1937CST 0 0 0.00K 0.00K Hail (1.00)

Shackelford County 3 N Albany 01 1937CST 1939CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

The sheriff's office estimated a 60 mph wind gust. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Shackelford County Albany 01 1940CST 1943CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

The fire department reported a large factory lost its roof. In addition, several very large trees and power lines were downed by the strong winds. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Taylor County 1 W Buffalo Gap 01 1945CST 1949CST 0 0 0.00K 0.00K Hail (1.25)

Callahan County 1 W Clyde 01 1952CST 1957CST 0 0 0.00K 0.00K Hail (1.00)

Taylor County 2 NNW Potosi 01 1955CST 1959CST 0 0 0.00K 0.00K Hail (0.88)

Taylor County 1 S Tuscola 01 2000CST 2005CST 0 0 0.00K 0.00K Hail (1.00)

Callahan County 2 E Dudley 01 2016CST 2020CST 0 0 0.00K 0.00K Hail (1.00)

Coleman County 2 SSE Echo 01 2045CST 2049CST 0 0 0.00K 0.00K Hail (1.75)

Golf ball size hail was reported at the intersection of Texas Highway 206 and FM 1176.

Severe thunderstorms developed along a cold front and a dryline. The main hazards with these storms was large hail and strong damaging winds. Fisher County 2 N Rotan 08 1634CST 1639CST 0 0 0.00K 0.00K Hail (2.75)

Fisher County 1 N Rotan 08 1646CST 1650CST 0 0 0.00K 0.00K Hail (1.75)

Jones County Hamlin 08 1736CST 1740CST 0 0 0.00K 0.00K Hail (1.00)

A National Weather Service Cooperative Observer reported disc shaped hail that was about an inch in diameter.

522 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Central Jones County Hamlin 08 1739CST 1743CST 0 0 0.00K 0.00K Hail (1.75)

Jones County Hamlin 08 1739CST 1743CST 0 0 0.00K 0.00K Hail (1.75)

Jones County Hamlin 08 1742CST 1746CST 0 0 0.00K 0.00K Hail (1.00)

A National Weather Service Cooperative Observer reported 1 inch hail covering the ground in Hamlin.

Jones County 4 NW Anson 08 1817CST 1821CST 0 0 0.00K 0.00K Hail (1.75)

Jones County 4 NW Anson 08 1822CST 1826CST 0 0 0.00K 0.00K Hail (2.00)

Jones County 1 WNW Anson 08 1826CST 1836CST 0 0 0.00K 0.00K Hail (2.50)

Law enforcement reported golf ball size hail covered the ground mainly on the north side of Anson. The hail fell from 7:26 to 7:36 PM CDT. KTAB and KRBC TV stations captured video of the hail while KTXS TV posted pictures of the hail on their Facebook Page. An isolated supercell thunderstorm developed along the dryline and moved east and southeast into Fisher and Jones Counties. This storm produced large hail stones just north of Rotan and on the north side of Anson where the hail damaged roofs and vehicles. Brown County Brookesmith 09 0800CST 0804CST 0 0 0.00K 0.00K Hail (1.00)

Jones County 5 W Anson 09 1155CST 1159CST 0 0 0.00K 0.00K Hail (0.75)

Nolan County 2 NE Roscoe 09 1326CST 1330CST 0 0 0.00K 0.00K Hail (1.00)

An amateur radio operator reported one inch hail at the intersection of U.S. Highway 84 and Interstate 20.

Nolan County 2 S Sweetwater 09 1330CST 1334CST 0 0 0.00K 0.00K Hail (1.75)

Nolan County 1 W Sweetwater 09 1334CST 1339CST 0 0 0.00K 0.00K Hail (0.88)

Nolan County 1 W Sweetwater 09 1337CST 1341CST 0 0 0.00K 0.00K Hail (2.00)

Law Enforcement reported two inch hail at the TA Truck Stop along Interstate 20 at Mile Marker 242.

523 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Central Nolan County 1 W Sweetwater 09 1339CST 1344CST 0 0 0.00K 0.00K Hail (1.75)

Nolan County 1 W Sweetwater 09 1357CST 1401CST 0 0 0.00K 0.00K Hail (1.00)

Nolan County 4 E Sweetwater Gesin Arp 09 1401CST 1406CST 0 0 0.00K 0.00K Hail (1.50)

Taylor County 2 SSW Mulberry Canyon 09 1420CST 1424CST 0 0 0.00K 0.00K Hail (1.00)

Coke County 1 SE Robert Lee 09 1441CST 1445CST 0 0 0.00K 0.00K Hail (1.75)

Coke County 3 N Bronte 09 1507CST 1511CST 0 0 0.00K 0.00K Hail (1.00)

Runnels County 4 SW Hatchel 09 1549CST 1553CST 0 0 0.00K 0.00K Hail (2.00)

Runnels County 6 SW Hatchel 09 1549CST 1554CST 0 0 0.00K 0.00K Hail (2.00)

Runnels County 2 NNE Ballinger 09 1550CST 1554CST 0 0 0.00K 0.00K Hail (2.00)

An amateur radio operator reported numerous cars were damaged by the large hail along U.S. Highway 83 and just north of Ballinger. Runnels County Hatchel 09 1551CST 1555CST 0 0 0.00K 0.00K Hail (1.75)

Runnels County 2 NE Ballinger 09 1551CST 1555CST 0 0 0.00K 0.00K Hail (1.75)

Runnels County 2 NNE Ballinger 09 1553CST 1557CST 0 0 0.00K 0.00K Hail (2.75)

A storm chaser reported baseball size hail on the ground. Time was estimated by radar and previous reports.

Runnels County 1 SW Ballinger 09 1555CST 1559CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Law Enforcement reported two utility poles, power lines, and a mesquite tree were blown down on the west side of Ballinger.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

524 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Central Coleman County 4 W Fisk 09 1639CST 1644CST 0 0 0.00K 0.00K Hail (1.00)

An amateur radio operator reported 1 inch hail about 4 miles north of Voss along County Road 503.

Coleman County 1 NW Gouldbusk 09 1650CST 1654CST 0 0 0.00K 0.00K Hail (1.75)

Coleman County Gouldbusk 09 1650CST 1654CST 0 0 0.00K 0.00K Hail (2.75)

Concho County 9 SW Eden 09 1650CST 1655CST 0 0 0.00K 0.00K Hail (1.50)

Menard County 5 N Menard Co Arpt 09 1720CST 1725CST 0 0 0.00K 0.00K Hail (1.75)

Menard County 5 NNE Menard Co Arpt 09 1730CST 1734CST 0 0 0.00K 0.00K Hail (1.75)

Law enforcement offiicials reported numerous cars damaged along U.S. Highway 83 about 5 miles north of Menard.

Menard County 1 NW Menard 09 1737CST 1741CST 0 0 0.00K 0.00K Hail (1.75)

Menard County 5 S Callan 09 1742CST 1747CST 0 0 0.00K 0.00K Hail (1.50)

Menard County 5 E Menard 09 1747CST 1751CST 0 0 0.00K 0.00K Hail (4.50)

Menard County 7 E Menard 09 1805CST 1810CST 0 0 0.00K 0.00K Hail (2.75)

The Menard Fire Chief reported baseball size hail on Ranch Road 2092.

Menard County Hext 09 1816CST 1821CST 0 0 0.00K 0.00K Hail (2.50)

A trained spotter reported golf ball to tennis size hail which lasted approximately 5 minutes.

Menard County 5 N Menard Co Arpt 09 1843CST 1848CST 0 0 0.00K 0.00K Hail (1.00)

525 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Central Menard County 7 W Menard Co Arpt 09 1844CST 1849CST 0 0 0.00K 0.00K Hail (1.75)

Mason County 1 SE Koockville 09 1850CST 1855CST 0 0 0.00K 0.00K Hail (1.00)

Menard County 1 W Menard 09 1850CST 1855CST 0 0 0.00K 0.00K Hail (1.00)

Mason County 4 SW Hedwigs Hill 09 1915CST 1920CST 0 0 0.00K 0.00K Hail (2.25)

A National Weather Service Cooperative Observer reported golf ball to billiard size hail.

Menard County 11 SSW Hext 09 1925CST 1930CST 0 0 0.00K 0.00K Hail (2.00)

A rainfall network observer reported hen size hail and a car windshield destroyed about 11 miles south southwest of Hext.

Mason County 7 S Hedwigs Hill 09 1940CST 1944CST 0 0 0.00K 0.00K Hail (1.75)

Mason County 5 W Streeter 09 1940CST 1945CST 0 0 0.00K 0.00K Hail (2.00)

A trained spotter reported car windows were broken by the large hail.

Mason County 8 SSW Mason 09 1940CST 1944CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Law enforcement reported debris covering Ranch Road 783 about 8 miles south southwest of Mason. In addition, his patrol car was blown off the road. The interaction of a cold front and a strong upper level disturbance with a moist and unstable airmass resulted in the development of several long track supercell thunderstorms that affected a large part of West Central Texas. These storms resulted in several reports of large hail and damaging winds along the path of these powerful thunderstorms. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Coke County 1 WNW Edith 10 1302CST 1306CST 0 0 0.00K 0.00K Hail (1.00)

A trained spotter relayed a report of nickel to quarter size hail along State Highway 158 just west of Lake E.V. Spence.

Coke County 9 SSE Robert Lee Arpt 10 1335CST 1339CST 0 0 0.00K 0.00K Hail (1.00)

Runnels County 4 SW Rowena 10 1414CST 1418CST 0 0 0.00K 0.00K Hail (1.50)

526 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Central Runnels County Rowena 10 1430CST 1435CST 0 0 0.00K 0.00K Hail (1.50)

Runnels County 3 ESE Ballinger Bruce Arpt 10 1441CST 1445CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A six inch diameter tree limb was reported down along U.S. Highway 83 just south of Ballinger.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Runnels County 2 SSW Ballinger Bruce Arpt 10 1458CST 1502CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A trained spotter reported telephone polls down along U.S. Highway 67 just south of Ballinger.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. San Saba County San Saba 10 1625CST 1629CST 0 0 0.00K 0.00K Hail (1.00)

Hail covering the ground was reported in San Saba by the public.

Mcculloch County 2 SSE Voca 10 1640CST 1644CST 0 0 0.00K 0.00K Hail (1.50)

A cold front moved through West Central Texas resulted in the development of a long track isolated supercell thunderstorm. This storm produced large hail and strong damaging winds from Robert Lee to San Saba.

Nolan County 1 E Nolan 15 1505CST 0 0 0.00K 0.00K Hail (1.00)

Brown County 1 E Zephyr 15 1635CST 0 0 0.00K 0.00K Hail (1.50)

Nolan County Sweetwater Muni Arpt 15 1635CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Taylor County 1 NW Trent 15 1655CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A few tree limbs were blown down. The largest limb was 2 to 3 inches in diameter and was 4 to 5 feet long.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Taylor County Abilene 15 1750CST 0 0 250.00K 0.00K Lightning

Lightning struck the Trinity Church of the Nazarene in the 3300 block of State Street. A church official estimated the damage to be two hundred and fifty thousand dollars. Coke County 1 N Bronte 15 1914CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A wind gust of 60 mph was reported. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

527 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Central Brown County 1 E Zephyr 15 2115CST 0 0 0.00K 0.00K Hail (1.00)

San Saba County 5 NNE Algerita 15 2156CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several large tree limbs were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. San Saba County 3 NW San Saba Co Muni Arp 15 2200CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several large tree limbs were blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. San Saba County 1 S Harkeyville 15 2236CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several large branches were blown down. The largest branches were 12 inches in diameter and were 8 to 10 feet long.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mcculloch County 3 NE Voca 15 2300CST 0 0 0.00K 0.00K Hail (0.88)

San Saba County 1 E San Saba 15 2300CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Large pecan limbs with a diameter of 6 to 12 inches and a length of 8 feet were blown down.

The combination of a dryline and an upper level disturbance produced a few severe thunderstorms across the Big Country and the counties of Brown and San Saba. The storms produced mostly damaging winds and a few reports of large hail. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. San Saba County 1 E Richland Spgs 17 1650CST 1654CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

The public reported a 60 mph wind gust at Richland Springs. A dryline combined with near record temperatures resulted in isolated strong to severe storms. The main hazard was strong damaging winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Haskell County 4 NNE Weinert 18 1848CST 1852CST 0 0 0.00K 0.00K Hail (1.75)

Haskell County 6 ENE Weinert 18 1850CST 1853CST 0 0 0.00K 0.00K Hail (2.75)

An isolated supercell thunderstorm developed along the dryline across Haskell County and produced large hail near Weinert.

Brown County 2 ESE Thrifty 20 1440CST 0 0 0.00K 0.00K Hail (1.75)

Golf Ball size hail was reported on State Highway 279, near County Road 115 at Lake Brownwood.

Brown County 2 E Thrifty 20 1457CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported just north of Lake Brownwood.

528 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Central Brown County 1 NE Lake Brownwood 20 1535CST 1539CST 1.17 50 0 0 0.00K 0.00K Tornado (EF0)

This tornado was spotted by trained amateur radio spotters over Lake Brownwood and was briefly on the ground.

Brown County 1 NW Blanket 20 1641CST 1655CST 3.65 350 0 0 100.00K 0.00K Tornado (EF1)

Blanket Volunteer Fire Fighters spotted this tornado as it approached the town of Blanket and as it moved south into the nearby ranch country. This tornado blew two heavy air conditioner units off of the high school. The twister caused roof damage to the the gymnasium , a nearby bus barn and a nearby residence. It uprooted trees and knocked down power lines and steel fencing. It also tipped over two tombstones at the nearby cemetery. The tornado also snapped, damaged or uprooted many large oak trees that were more than 100 years old south of Blanket.

Brown County 4 NNE Zephyr 20 1700CST 1703CST 0.2 50 0 0 0.00K 0.00K Tornado (EF0)

This tornado briefly touched down near the town of Zephyr. Brown County 2 E Zephyr 20 1810CST 0 0 0.00K 0.00K Hail (1.75)

Brown County 5 NE Zephyr 20 1820CST 0 0 0.00K 0.00K Hail (1.75)

Brown County 1 W Blanket 20 1907CST 0 0 0.00K 0.00K Hail (1.00)

Brown County 1 W Blanket 20 2010CST 0 0 0.00K 0.00K Hail (1.00)

Severe thunderstorms developed along a dryline across Brown County during the late afternoon and evening. Strong instability and wind shear were favorable for supercells. A supercell tracked across Brown County from Lake Brownwood to Blanket. In Blanket, a tornado damaged the roof of the Blanket High School. Large hail and damaging winds were also reported.

Fisher County 3 NNE Rotan 23 1652CST 0 0 0.00K 0.00K Hail (1.75)

Fisher County Rotan 23 1702CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

The Rotan Fire Department reported a wind gust of 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Fisher County Rotan 23 1703CST 0 0 0.00K 0.00K Hail (1.75)

Haskell County 2 NNE Rochester 23 1703CST 0 0 0.00K 0.00K Hail (1.00)

Fisher County Rotan 23 1706CST 1720CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

Thunderstorm wind gusts from 60 to 80 mph were reported in Rotan.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph.

529 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Central Fisher County Rotan 23 1710CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A brick wall was damaged from a house on the 100 Block of Mccarther St.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Haskell County 1 NNW Haskell 23 1710CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Fisher County Rotan 23 1712CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

The high thunderstorm winds tore roofs of some of the homes and the buildings in Anson.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Fisher County 1 ENE Rotan 23 1712CST 1718CST 1 175 0 0 100.00K 0.00K Tornado (EF0)

This tornado, reported by storm chasers, impacted the east side of Rotan as it crossed State Highway 92 and the nearby golf course. The twister broke several large tree limbs, knocked down power poles and power lines, uprooted a few trees and tore off some roof shingles from a few homes. The tornado lifted near the intersection of South Genevieve Avenue and State Highway 70.

Haskell County 2 NNE Weinert 23 1714CST 0 0 0.00K 0.00K Thunderstorm Wind (70MG) Note: The measured wind gust of 70 knots is equivalent to 81 mph.

Fisher County 2 NW Center 23 1722CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A couple of barns were blown away along Farm to Market Road 2832 a few miles south of Rotan.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Fisher County Rotan 23 1724CST 0 0 0.00K 0.00K Hail (1.75)

Fisher County 1 S Rotan 23 1730CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

The roof of a barn collapsed along State Highway 70 about three quarters of a mile south of Rotan.

An outflow boundary crossed the Red River into North Texas and interacted with a dryline and a very moist and unstable airmass across the Big Country to produce a supercell thunderstorm in Fisher County and a long track bow echo that originated in Haskell County. The supercell thunderstorm led to the development of a tornado on the east side of Rotan along with damaging winds and a few reports of large hail. The bow echo resulted in widespread wind damage as it tracked from Haskell to Albany across the City of Abilene and into Coleman County where it eventually weakened. A few reports of large hail were also reported. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Fisher County 1 N Rotan 23 1730CST 1930CST 0 0 0.00K 0.00K Flash Flood

Roads were flooded in Rotan with a depth of 1 to 2 feet of water.

A complex of thunderstorms produced very heavy rain and reports of flash flooding across the Concho Valley and Northwest Hill Country during the late night of May 23 and into the early morning of May 24. Also, the Lower Colorado River Authority gauges reported around 5 inches of rain in Concho, Menard and Kimble Counties.

530 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Central Haskell County 1 NNW Haskell 23 1735CST 0 0 0.00K 0.00K Thunderstorm Wind (60MG) Note: The measured wind gust of 60 knots is equivalent to 69 mph.

Jones County 1 SW Stamford 23 1740CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Part of a roof was damaged by the straight line winds in Stamford.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jones County 1 SE Stamford 23 1750CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A wind gust of 60 mph was reported on County Road 142 about a mile east of Stamford.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jones County 1 E Lueders 23 1810CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Small branches were broken by straight line thunderstorm winds in Lueders.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Jones County 1 WNW Anson 23 1813CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A wind gust of 60 mph was reported in Anson by law enforcement officials.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jones County 3 NW Lanius 23 1820CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

A wind gust of 65 mph was reported just north of Abilene. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Taylor County 1 W (DYS)Dyess Afb Abile 23 1821CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Shackelford County Albany 23 1840CST 1845CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

This thunderstorm wind was reported by law enforcement. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Nolan County 1 W Sweetwater 23 1845CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A tree was blown down in Sweetwater. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Nolan County 5 S Champion 23 1845CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A wind gust of 60 mph was reported. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Taylor County Abilene 23 1848CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Large freeway road signs were blown down. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

531 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Central Jones County 6 ESE Abilene 23 1855CST 0 0 0.00K 0.00K Thunderstorm Wind (61MG) Note: The measured wind gust of 61 knots is equivalent to 70 mph.

Shackelford County 1 WNW Acampo 23 1858CST 1907CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Law enforcement officials reported this strong thunderstorm wind.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Taylor County 1 N (ABI)Abilene Muni Ar 23 1900CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Callahan County Baird 23 1920CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A gas station sign was damaged. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Taylor County 2 NE Abilene 23 1920CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)

Power poles and a fireworks stand were blown down at Highway 351 and Interstate 20.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Callahan County Baird 23 1921CST 0 0 0.00K 0.00K Hail (1.00)

Callahan County Baird 23 1923CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A wind gust of 60 mph was reported. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Taylor County Abilene 23 1925CST 0 0 0.00K 0.00K Thunderstorm Wind (57EG)

Numerous trees were blown down throughout the city of Abilene.

Note: The estimated wind gust of 57 knots is equivalent to 66 mph. Taylor County 2 ENE Wylie 23 1926CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)

A local shop had all of its walls blown inward on Elmdale Road.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Taylor County 4 S Abilene 23 1926CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)

Numerous power poles were blown down along Elmdale Road. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Taylor County 3 W Abilene 23 1928CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)

A part of a roof was ripped off of a mobile home and another roof was blown off of a house on the west side of Abilene.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph.

532 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Central Taylor County 1 N (ABI)Abilene Muni Ar 23 1936CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG) Note: The measured wind gust of 54 knots is equivalent to 62 mph.

Callahan County Clyde 23 1938CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Power lines were blown down by the damaging thunderstorm winds.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Taylor County 2 NNW Potosi 23 1939CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Power poles were blown down by the strong thunderstorm winds.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Taylor County 1 N (ABI)Abilene Muni Ar 23 1940CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG) Note: The measured wind gust of 54 knots is equivalent to 62 mph.

Callahan County 2 S Baird 23 1948CST 0 0 0.00K 0.00K Hail (1.75)

Callahan County Clyde 23 1948CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)

Several large trees were blown down. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Callahan County 3 WNW Rowden 23 1950CST 0 0 0.00K 0.00K Hail (1.75)

Callahan County Clyde 23 2030CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Power poles were blown down in Clyde. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Taylor County 3 S Abilene Bttrfld Arpt 23 2030CST 0 0 0.00K 0.00K Thunderstorm Wind (60EG)

Several large freeway signs were blown down along Interstate 20.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Coleman County 6 E Glen Cove 23 2100CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A few tree limbs were blown down. The largest tree limb was 6 feet long.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Tom Green County 2 ENE Carlsbad 23 2205CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

A part of a metal roof was damaged on Glass Court Road. An outflow boundary crossed the Red River into North Texas and interacted with a dryline and a very moist and unstable airmass across the Big Country to produce a supercell thunderstorm in Fisher County and a long track bow echo that originated in Haskell County. The supercell thunderstorm led to the development of a tornado on the east side of Rotan along with damaging winds and a few reports of large hail. The bow echo resulted in widespread wind damage as it tracked from Haskell to Albany across the City of Abilene and into Coleman County where it eventually weakened. A few reports of large hail were also reported. Note: The estimated wind gust of 55 knots is equivalent to 63 mph.

533 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Central Tom Green County 3 S San Angelo Res 23 2310CST 24 0100CST 0 0 0.00K 0.00K Flash Flood

Southwest Boulevard was flooded near Loop 306. The flood gauge showed a depth of 1.5 feet.

Tom Green County 3 SE San Angelo Res 23 2318CST 2 WSW San Angelo 24 0100CST 0 0 0.00K 0.00K Flash Flood

A high water rescue occurred at South Taylor Street and Concho Street.

Menard County 3 NNE Menard Co Arpt 24 0320CST 0620CST 0 0 0.00K 0.00K Flash Flood

Menard Sheriff's Office reported a bridge along US Highway 83 was impassable due to high water north of Menard, and a second bridge was impassable along US 190 west of Menard. Kimble County 1 E Cleo 24 0430CST 0730CST 0 0 0.00K 0.00K Flash Flood

Ranch Road 2291 was closed at Bear Creek due to flooding. A complex of thunderstorms produced very heavy rain and reports of flash flooding across the Concho Valley and Northwest Hill Country during the late night of May 23 and into the early morning of May 24. Also, the Lower Colorado River Authority gauges reported around 5 inches of rain in Concho, Menard and Kimble Counties.

TEXAS, Central Southeast Madison County 2 W Madisonville 09 1540CST 1610CST 0 0 15.00K 0.00K Thunderstorm Wind (60EG)

There were reports of numerous trees downed around the county.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Brazos County Kurten 09 1630CST 12 NE Millican 1830CST 0 0 10.00K 0.00K Flood

A foot of water covered the intersection of Deacon Drive and Rio Grande Street in College Station. Flash flooding was also reported on Old San Antonio Road as a creek was overrunning its banks. Minor street flooding was reported at the intersection of George Bush Drive and University Oaks Drive.

Brazos County 2 ESE College Station 09 1648CST 0 0 Hail (1.00)

Quarter sized hail was reported in College Station. Trinity County 1 NNE Trinity 09 1700CST 0 1 40.00K 0.00K Thunderstorm Wind (65EG)

A roof was blown off a residential home. There were numerous trees and power lines downed in town, as well. There was one injury caused by a downed power line. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. San Jacinto County 4 N Coldspring 09 1815CST 0 0 6.00K 0.00K Thunderstorm Wind (60EG)

Severe thunderstorm wind gusts damaged power lines. An upper level disturbance coupled with a moist environment, led to late afternoon thunderstorms across central Texas. These storms produced wind damage, hail and flooding. Note: The estimated wind gust of 60 knots is equivalent to 69 mph.

534 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Central Southeast Harris County 1 W Clinton Park 10 0610CST 0 0 1.50K 0.00K Heavy Rain

Heavy rains weakened the root system of a large tree causing it to collapse.

Austin County Bellville 10 0750CST 0753CST 0 0 0.00K Hail (1.00)

A severe thunderstorm produced nickel to quarter sized hail.

Burleson County 3 ENE Davidson 10 0755CST 0 0 0.00K Hail (0.75)

A strong thunderstorm produced dime sized hail between Caldwell and Snook.

Harris County 1 NNW Bender 10 0856CST 0 0 0.00K Hail (1.00)

A severe thunderstorm produced quarter sized hail near the intersection of Beltway 8 and Lee Road.

Harris County 1 ENE Bender 10 0858CST 0 0 0.00K Hail (1.00)

A severe thunderstorm produced quarter sized hail at the intersection of Old Humble Road and Beltway 8.

Harris County 1 ENE Golden Acres 10 0900CST 2 SE Houston Hull Arpt 1200CST 0 0 750.00K 0.00K Flood

There were numerous reports of flooding around the greater Houston metropolitan area. There was curb high street flooding at the intersection of Gessner and Hammerly Streets. There was also high water causing flooding at the West Sam Houston Tollway southbound at U.S. Highway 59 southwest. Frontage road flooding was reported at the 610 West Loop northbound at U.S. Highway 59 southwest. There was a road closure at the U.S. 59 southwest freeway at Shepherd Drive due to high water. Road flooding was also reported in Humble, state highway 288 southbound at the 610 south loop, southwest U.S. 59 northbound at the 610 west loop, and at the south Beltway 8 eastbound at U.S. 90 alternate south.

Harris County 2 E Bender 10 0900CST 0 0 0.00K Hail (0.88)

A strong thunderstorm produced nickel sized hail in the Fall Creek subdivision by the Redstone golf course.

Harris County 2 SSE White Oak Acres 10 0900CST 0 1 0.00K 0.00K Lightning

Lightning struck a man at the intersection of Seamist Drive and Tannehill Drive.

Harris County 2 WNW Harmaston 10 0910CST 0 0 0.00K Hail (1.00)

A severe thunderstorm produced quarter sized hail near Atascocita.

Fort Bend County 5 SSW Katy 10 0912CST 0 0 100.00K 0.00K Lightning

Lightning caused a house fire in the Silver Ranch subdivision in Katy.

535 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Central Southeast Fort Bend County 2 N Crabb 10 0930CST 0 0 15.00K 0.00K Lightning

Lightning struck a car and set it ablaze at the intersection of Williams Way Blvd. and Highway 59.

Fort Bend County 3 S Clodine 10 0935CST 0 0 130.00K 0.00K Lightning

Lightning caused a home fire on the 10500 block of East Aliana Trace Drive in Mission Bend.

Wharton County 1 S Magnet 10 1000CST 0 0 5.00K 0.00K Thunderstorm Wind (60EG)

A severe thunderstorm downed trees on Highway 60. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Matagorda County 1 W Bay City 10 1015CST 0 0 0.00K Thunderstorm Wind (52MG)

This severe thunderstorm wind gust was measured at the Bay City AWOS site.

Note: The measured wind gust of 52 knots is equivalent to 60 mph. Brazoria County 4 E Peterson Lndg 10 2250CST 2255CST 0 0 0.00K Hail (0.88)

A strong thunderstorm produced dime to nickel sized hail for about five minutes at the intersection of FM 2917 and FM 2004.

Galveston County 1 NW Jamaica Beach 10 2312CST 0 0 45.00K 0.00K Hail (1.75)

A severe thunderstorm produced golf ball sized hail that damaged vehicles near Jamaica Beach.

Clusters and lines of storms produced hail and flooding. In addition several homes and one individual were struck by lightning.

Madison County 7 NE Cottonwood 21 1841CST 0 0 Hail (1.75)

There was golf ball size hail near the the intersection of Old San Antonio Road and Highway 75.

Madison County 5 NE Cottonwood 21 1848CST 0 0 Hail (1.00)

There was dime to quarter size hail observed. Madison County 2 WSW Madisonville Muni Ar 21 1905CST 0 0 Funnel Cloud

The public reported a funnel cloud between North Zulch and Madisonville.

Houston County 1 W Lovelady 21 2005CST 0 0 10.00K Thunderstorm Wind (56EG)

There were trees and power lines downed in and around Lovelady.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Walker County 4 SW Crabbs Prairie 21 2144CST 0 0 Hail (1.00)

Nickel to quarter size hail observed 10 miles west of Interstate 45.

536 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Central Southeast Polk County 1 WSW Corrigan 21 2230CST 0 0 Hail (1.00)

Quarter size hail observed in Corrigan. Liberty County 2 S Cleveland Muni Arpt 22 0143CST 0 0 7.00K 0.00K Hail (1.75)

Golf ball size hail observed near the Highway 321 and Highway 105 intersection.

Madison County 1 WSW North Zulch 22 0320CST 0400CST 0 0 0.00K 0.00K Flood

Flooding was reported on corner of Hwy 21 and FM 39 in North Zulch.

Liberty County 1 SW Daisetta 22 0335CST 0 0 2.50K 0.00K Thunderstorm Wind (56EG)

There were trees downed in Daisetta. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Liberty County Ames 22 0339CST 0 0 3.50K 0.00K Thunderstorm Wind (53EG)

There were trees downed in the town of Ames. Note: The estimated wind gust of 53 knots is equivalent to 61 mph. Liberty County 1 NE Raywood 22 0339CST 0 0 3.50K 0.00K Thunderstorm Wind (61EG)

There were trees downed in the Raywood area. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Chambers County 1 S Anahuac 22 0430CST 0 0 4.00K 0.00K Thunderstorm Wind (65EG)

There were trees and power lines downed in Anahuac. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Chambers County 1 NNW Wallisville 22 0430CST 0 0 2.75K 0.00K Thunderstorm Wind (65EG)

There were trees and power lines downed in Wallisville. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Chambers County Winnie 22 0430CST 0 0 4.00K 0.00K Thunderstorm Wind (65EG)

There were trees and power lines downed in Winnie. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Chambers County 1 N Stowell 22 0444CST 0 0 Thunderstorm Wind (68MG)

This wind gust was measured at East Chambers Elementary School.

An upper level disturbance initiated a west-to-east line of thunderstorms. This line slowly moved southeast and produced evening into early morning severe weather. Note: The measured wind gust of 68 knots is equivalent to 78 mph.

537 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Extreme West TXZ418>424 Eastern/central El Paso County - Northern Hudspeth Highlands/hueco Mountains - Rio Grande Valley Of Eastern El Paso/western Hudspeth Counties - Rio Grande Valley Of Eastern Hudspeth County - Salt Basin - Southern Hudspeth Highlands - Western El Paso County 01 0000MST 14 2359MST 0 0 0.00K 0.00K Drought

Eastern El Paso County saw its drought status go from Severe(D2) to Moderate(D1) drought in the middle of the month.

TEXAS, Mid-South

TXZ229>234-239> Aransas - Bee - Calhoun - Duval - Goliad - Jim Wells - Kleberg - La Salle - Live Oak - McMullen - Nueces 247 - Refugio - San Patricio - Victoria - Webb 01 0000CST 31 2359CST 0 0 0.00K 0.00K Drought

Temperatures were near or slightly below normal again for the month of May. Several beneficial rain events occurred across portions of South Texas during the month of May. Significant rainfall was received in the Victoria Crossroads, inland portions of the Coastal Bend, and most of the Brush Country. Only the northern Coastal Bend and Mid-Coast regions did not receive much rainfall. Several areas received rainfall amounts over 6 inches during the month from the Victoria Crossroads to the northern Brush Country as well as over inland sections for the southern Coastal Bend westward into the southern Brush Country. The highest amounts above 10 inches occurred over northern portions of Live Oak, Goliad, and Bee Counties. Exceptional drought continued over portions of the southern Coastal Bend. The size of the severe to extreme drought area was reduced but still remained over portions of the Brush Country eastward into the northern Coastal Bend with severe drought developing over Aransas County by the end of the month. Mandatory water restrictions continued during the month for the city of Corpus Christi as the combined lake capacity levels remained below 40 percent. The city of Portland continued under mandatory water restrictions. The cities of Victoria and Laredo remained under voluntary water restrictions. Different stages of water restrictions continued for Beeville, Point Comfort, Alice, Kingsville, Taft, and Odem during the month.

Mcmullen County 12 N Tilden 10 1914CST 0 0 2.00K 0.00K Hail (1.00)

Spotter reported quarter sized hail occurred northeast of Cross.

Mcmullen County 12 NNW Cahham 10 1914CST 0 0 25.00K 0.00K Thunderstorm Wind (52EG)

High winds blew down four power poles and caused damage to a garage northeast of the community of Cross.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Live Oak County 1 SW Three Rivers 10 2010CST 0 0 2.00K 0.00K Hail (1.00) Spotter reported quarter sized hail occurred in the southwest portion of Three Rivers.

Webb County 5 S Laredo Link Arpt 10 2217CST 0 0 25.00K 0.00K Hail (1.75)

The Webb County Sheriff's Office reported golf ball sized hail occurred in the community of Rio Bravo.

Webb County 4 NNE Laredo Link Arpt 10 2325CST 2 SSW Laredo Afb 2340CST 0 0 5.00K 0.00K Flash Flood

Laredo Fire Department reported sporadic flooding of roadways throughout the city of Laredo. Flooding affected intersections on the north side of town at McPherson Avenue and International Boulevard as well as McPherson Avenue and Del Mar Boulevard, on the southeast side of Laredo near Los Presidentes Avenue and Loop 20, and Scott and Coke Streets in the downtown area.

538 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Mid-South Webb County 1 W Laredo Afb 11 0010CST 1 SSW (LRD)Laredo Intl Arp 0030CST 0 0 50.00K 0.00K Flash Flood

Flooding on the northwest side of Laredo led to a water rescue of one person near the intersection of Mines Road and Rancho Viejo Drive. High water flooded a home on Lady Di Loop in north Laredo. Flooding was reported on McPherson Avenue and International Boulevard. Streets were flooded in south Laredo also.

A moderately unstable air mass developed over South Texas in advance of a frontal boundary draped across portions of south- central Texas. Scattered strong to severe thunderstorms developed over the Hill Country southwest into the higher terrain of northern Mexico in the afternoon of May 10th as an upper level disturbance approached from the west. The thunderstorms moved into the Brush Country during the evening hours producing wind damage and large. A complex of thunderstorms moved across Laredo late in the evening into the early morning hours of May 11th and produced locally heavy rainfall. Rainfall amounts of 2 to 3 inches in Laredo produced flash flooding in the city.

Bee County 3 NE Poesta 25 0530CST 0700CST 0 0 20.00K 0.00K Heavy Rain

Four inches of rain occurred northeast of Beeville. This led to water covering the roadway on U. S. Highway 59 which caused multiple vehicle accidents. Live Oak County 1 N Oakville 25 0840CST 0900CST 0 0 0.00K 0.00K Flash Flood

Interstate 37 was closed due to high water near the community of Oakville.

Live Oak County 3 SE Suniland 25 0850CST 0 0 0.00K 0.00K Funnel Cloud

Funnel cloud reported by law enforcement north of Three Rivers.

Live Oak County Three Rivers 25 0852CST 0920CST 0 0 100.00K 0.00K Flash Flood

Flooding forced evacuations of homes near Tipps Park just west of Three Rivers near Texas Highway 72.

Bee County Pettus 25 0900CST Tulsita 1130CST 0 0 0.50M 0.00K Flash Flood

Heavy rainfall between 7 to 9 inches occurred over northern Bee County causing significant flooding along Medio Creek. Flood waters from Medio Creek caused road closures along U. S. Highway 181 at the intersections with Farm to Market Road 623 in Pettus and with Farm to Market Road 798 in Tulsita. Flood waters reached a depth of 1 to 2 feet in homes and businesses in the city of Pettus, including the Dairy Queen and U. S. Post Office. Damage estimates from the flooding were at half of a million dollars.

Nueces County 2 NW Skunk Hill 25 0900CST 0 0 0.00K 0.00K Funnel Cloud

Public reported a funnel cloud north of Interstate 37 near Rand Morgan Road.

Live Oak County 4 SE Suniland 25 0905CST 1010CST 0 0 0.00K 0.00K Flash Flood

Interstate 37 was closed due to 4 feet of water over the road near mile marker 74.

539 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Mid-South Goliad County 11 WSW Charco 25 1100CST 1130CST 0 0 0.00K 0.00K Flash Flood

Goliad County Sheriff's Office reported Farm to Market Roads 883 and 2442 were covered with water northwest of Berclair.

Bee County Pettus 25 1130CST 2030CST 0 0 0.00K 0.00K Flood

Flood waters along Medio Creek were slow to recede during the afternoon with water around a foot deep in Pettus. U. S. Highway 181 was closed in Pettus and Tulsita due to the high waters along Medio Creek through the afternoon into the early evening hours.

Victoria County 2 ESE Victoria Ball Arpt 25 1247CST 1252CST 1.25 25 0 0 0.00K 0.00K Tornado (EF0)

Public reported a tornado near Navarro and Larkspur Streets on the north side of Victoria and confirmed by multiple photographs. NWS storm survey indicated no damage to any structures as the tornado was in an open field.

Victoria County 2 NE Aloe 25 1346CST 0 0 0.00K 0.00K Funnel Cloud

Funnel cloud was spotted near Moody Street and Farm to Market Road 1685.

Victoria County 1 NE Guadalupe 25 1655CST 1815CST 0 0 0.00K 0.00K Flash Flood

Roads were closed due to high water near the intersection of Guadalupe Road and York Road in southern Victoria County.

Deep atmospheric moisture was in place over South Texas during the morning hours on May 25th. A slow moving upper level disturbance moved into the area from the west producing scattered to numerous thunderstorms over the northern Coastal Bend into the Victoria Crossroads. Showers and thunderstorms trained over the same areas into the early afternoon hours. Rain amounts between 7 and 9 inches caused flash flooding from Three Rivers to Beeville to Goliad to Victoria. The most significant flooding occurred near the community of Pettus. Atmospheric shear profile was relatively weak and funnel clouds and a weak tornado occurred in the near-tropical air mass.

TEXAS, North

TXZ091>093-100> Anderson - Bell - Bosque - Comanche - Cooke - Coryell - Denton - Eastland - Erath - Falls - Freestone - 103-115>118-129> Grayson - Hamilton - Hill - Hood - Jack - Johnson - Lampasas - Leon - Limestone - McLennan - Milam - 133-141>145-147> Mills - Montague - Palo Pinto - Parker - Robertson - Somervell - Stephens - Tarrant - Wise - Young 148-156>162-174> 175 01 0000CST 31 2359CST 0 0 0.00K 121.0K Drought

Severe weather dominated headlines for the month of May, but drought conditions continued to be a important weather topic across North Texas. Hamilton County 4 NW Hamilton 09 1056CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail was reported northwest of Hamilton. Hamilton County Hamilton 09 1157CST 0 0 7.00K 0.00K Hail (1.75)

540 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Bell County Moffat 09 1318CST 0 0 0.00K 0.00K Hail (1.00)

Bell County 2 NNE Temple 09 1337CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail was reported in Temple. Bell County 2 E Midway 09 1338CST 0 0 20.00K 0.00K Thunderstorm Wind (63MG)

A trained spotter measured a 72 mph wind gust southwest of Temple.

Note: The measured wind gust of 63 knots is equivalent to 72 mph. Bell County 2 NE Temple 09 1339CST 0 0 5.00K 0.00K Hail (1.75)

Golf ball sized hail was reported on the northeast side of Temple.

Falls County Westphalia 09 1400CST 0 0 0.00K 0.00K Hail (1.00)

Milam County 1 S Silver City 09 1409CST 1414CST 0 0 0.00K 2.00K Thunderstorm Wind (56EG)

Trained spotters reported several trees blown down or destroyed by thunderstorm winds. The tree damage occurred a few miles northeast of the city of Cameron. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Anderson County 3 NW Blackfoot 09 1754CST 1834CST 0 0 0.00K 20.00K Flash Flood

Anderson County Emergency Management reported several roads underwater and impassible due to locally heavy rainfall.

Thunderstorms developed in the moist, unstable air on May 9th, producing clusters of thunderstorms. Various reports of severe weather were reported, with the bulk of the reports being hail near quarter sized.

Lampasas County 1 N Lampasas Arpt 10 1727CST 0 0 0.00K 0.00K Hail (1.00)

Hail up to the size of quarters was reported 1 mile north of Lampasas Airport.

Bell County 4 WSW Simmonsville 10 1830CST 1834CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

A trained spotter estimated 60 mph winds at their residence in Killeen. Report came in through e-spotter.

An upper level disturbance moved east from West Texas during the morning and afternoon of May 10th. This system was able to tap into just enough moisture and instability to produce isolated thunderstorms in North Texas. There were minimal reports of hail, but several reports of winds to around 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

TXZ116-156 Lampasas - Palo Pinto 13 1100CST 1600CST 0 0 3.0K 14.0K Wildfire

After some recent rainfall, conditions became extremely dry on the afternoon of Monday, May 13th. Low relative humidity and 10 to 20 mph winds allowed fires which started as controlled burns to quickly become uncontrolled.

541 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North TXZ095-105>107- Delta - Hopkins - Hunt - Kaufman - Lamar - Rains - Rockwall - Van Zandt 120>123 14 0000CST 21 2359CST 0 0 3.0K 10.0K Drought

Drought conditions continued to plaque much of North Texas during the month of May. Fortunately, some counties experienced overall improvement in drought severity due to periods of active convective weather.

Montague County Ringgold 15 1608CST 1611CST 0 0 0.00K 0.00K Hail (1.75)

A Montague County sheriff deputy reported golf ball sized hail in Ringgold.

Montague County Ringgold 15 1611CST 1614CST 0 0 10.00K 5.00K Hail (2.75)

A Montague County sheriff deputy reported hail grew to baseball sized hail. Golf ball sized hail was also covering the ground.

Montague County 3 WNW Belcherville 15 1633CST 1636CST 1.11 70 0 0 30.00K 0.00K Tornado (EF0)

NWS survey crews determined a tornado caused EF-0 damage to a ranch near Belcherville, Texas.

Tornado outside of Belcherville, Texas in rural Montague County. Photo by Staley Keck. Palo Pinto County Mineral Wells 15 1713CST 1714CST 0 0 0.00K 0.00K Hail (1.50)

Trained spotters reported ping pong ball sized hail at the Mineral Wells airport.

Palo Pinto County Mineral Wells 15 1714CST 1720CST 0 0 0.00K 0.00K Hail (1.25)

Trained spotters reported the hail decreased to half dollar sized.

542 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Mills County 4 WSW Priddy 15 1714CST 1718CST 3.42 50 0 0 0.00K 3.00K Tornado (EF0)

The Mills County Emergency Manager and local storm spotters observed a tornado. The tornado occurred in open land and did minimal damage to trees. Palo Pinto County Mineral Wells 15 1720CST 1725CST 0 0 0.00K 0.00K Hail (1.75)

Trained spotters reported the hail grew to the size of golf balls.

Palo Pinto County Mineral Wells 15 1725CST 1729CST 0 0 400.00K 0.00K Hail (4.00)

Trained spotters reported grapefruit sized hail in the city of Mineral Wells.

Erath County Morgan Mill 15 1730CST 1735CST 0 0 5.00K 0.00K Hail (1.50)

Morgan Mill Fire Department reported ping pong ball hail in the city of Morgan Mill.

Mills County Priddy 15 1732CST 1736CST 0 0 0.00K 0.00K Hail (1.75)

Trained spotters reported golf ball sized hail in the city of Priddy.

Parker County Millsap 15 1732CST 1736CST 0 0 10.00K 5.00K Hail (1.75)

Trained spotters reported hail to the size of golf balls in Millsap.

Palo Pinto County 1 S (MWL)Mineral Wells A 15 1741CST 1742CST 0.3 50 0 0 0.00K 20.00K Tornado (EF0)

Off duty NWS meteorologists observed a tornado to the west of Millsap. The tornado first began in far eastern Palo Pinto County before moving to the southeast. Montague County 5 NNE Nocona 15 1750CST 5 S Rowland 1755CST 1.01 200 0 1 100.00K 0.00K Tornado (EF1)

National Weather Service storm survey crews determined a tornado occurred in the Nocona Lake Estates on the west side of Lake Nocona. The tornado first occurred in open fields, before moving northeast toward the lake. The tornado caused damage to several homes and several open lots, before curving sharply to the northwest, producing EF-1 damage to several manufactured homes.

543 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North

Damage to a home in Nocona Lake Estates in Montague County, Texas. Photo by Mark Fox. Montague County 7 SW Fruitland 15 1751CST 1758CST 3.63 240 0 0 125.00K 0.00K Tornado (EF1)

A storm survey crew determined EF-1 damage occurred near Lake Amon Carter. Several houses were damaged, and a golf course clubhouse was heavily damaged.

Damage on the south side of Lake Amon Carter, outside of Bowie, Texas. Photo by Jason Dunn, NWS Fort Worth. Mills County Caradan 15 1800CST 1804CST 0 0 40.00K 0.00K Hail (2.75)

Trained spotters reported hail to the size of baseballs in the city of Caradan.

Parker County Millsap 15 1800CST 1802CST 0 0 5.00K 2.00K Thunderstorm Wind (56EG)

Trained spotters estimated a wind gust to 65 mph outside of Millsap. Tree limbs were blown down and a few sheds lost their roofs. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

544 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Parker County 1 WSW Millsap 15 1803CST 1819CST 1.95 400 0 0 60.00K 0.00K Tornado (EF1)

Off duty NWS employees observed a tornado as it moved across the southern portions of the city. Several homes, power lines, and barns were damaged.

Parker County 4 W Weatherford 15 1806CST 1810CST 0 0 2.00K 0.00K Hail (1.75)

Trained spotters reported golf ball sized hail to the west of Weatherford.

Hamilton County 2 S Indian Gap 15 1817CST 1821CST 0 0 5.00K 10.00K Hail (1.75)

Trained spotters reported golf ball sized hail, just south of Indian Gap.

Montague County 6 WSW Illinois Bend 15 1818CST 5 WNW Capps Corners 1820CST 0.94 150 0 0 40.00K 0.00K Tornado (EF0)

Broadcast media chasers captured video of a tornado approximately 11 miles northwest of St. Jo. This tornado produced EF0 damage to trees and one home. Wise County 2 W Alvord 15 1820CST 1824CST 0 0 0.00K 10.00K Hail (2.75)

Baseball sized hail was reported near Alvord. Parker County 3 NNW Brock 15 1822CST 1825CST 0.49 70 0 0 0.00K 20.00K Tornado (EF0)

Off duty NWS employees observed a tornado near the Brock exit on I-20. This was the third in a series of tornadoes in and around Millsap. Damage was contained to open fields. Parker County 3 W Weatherford 15 1835CST 1837CST 0 0 10.00K 5.00K Hail (1.75)

Trained spotters reported golf ball sized hail moving closer to Weatherford.

545 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Wise County 3 N Alvord 15 1835CST 1837CST 0.69 25 0 0 0.00K 10.00K Tornado (EF0)

Trained spotters observed a brief tornado northeast of Alvord.

Hamilton County 4 N Mc Girk 15 1852CST 1855CST 0 0 0.00K 0.00K Hail (0.88)

Nickel sized hail fell near the intersection of FM221 and CR2005.

Hood County Granbury 15 1852CST 1856CST 0 0 30.00K 0.00K Hail (1.75)

Golfball sized hail was reported near the Granbury High School.

Parker County 7 E Dennis 15 1853CST 1856CST 1.46 200 0 0 40.00K 80.00K Tornado (EF0)

National Weather Service storm survey crew determined a tornado caused EF-0 damage to homes, trees, and barns in the Tin Top community.

Tornado damage near Tin Top Road, Parker County. Photo by Jason Dunn, WFO Fort Worth. Hood County Granbury 15 1856CST 1902CST 0 0 60.00K 0.00K Hail (2.75)

The hail grew to the size of baseballs. Also, winds in excess of 50 mph were reported near the Granbury High School.

Hood County 2 N Mambrino 15 1858CST 2 WSW Acton 1911CST 2.5 400 6 54 143.00M 0.00K Tornado (EF4)

National Weather Service crews surveyed the damage from the Granbury tornado. The tornado first occurred on the west bank of Lake Granbury / Brazos River. The tornado crossed the lake heading east, towards Davis Road. On the east side of the lake, the tornado damaged several power lines and trees, before hitting the American Legion hall on Davis Road.

546 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North

The tornado then took much more of a northerly track through the Rancho Brazos subdivision. This subdivision was severely damaged, with 97 of the 110 homes suffering at least minor damage. Four homes suffered EF-4 damage, and ten others had EF- 3 damage. The vast majority of the subdivision had evidence of EF-1 or EF-2 damage. Six individuals lost their lives in this subdivision as a direct result of the tornado. All six were in mobile homes at the time.

Moving north from the Rancho Brazos subdivision, the tornado dissipated approximately one mile to the north-northeast of the area that suffered the most damage. M61MH, F81MH, M34MH, M81MH, M69MH, F63MH

Ranchos Brazos subdivision in Granbury, Texas, where all six of the fatalities occurred. Photo by Mark Fox, NWS Fort Worth WCM. Hamilton County 6 S Blue Ridge 15 1905CST 1910CST 0 0 3.00K 5.00K Hail (1.75)

Trained spotters reported golf ball sized hail. Parker County 10 SSW Aledo 15 1905CST 1907CST 0.12 20 0 0 20.00K 0.00K Tornado (EF0)

Trained spotters observed a brief tornado well south of Annetta South, in Parker County.

Hood County 5 SE Lake Granbury South 15 1909CST 1911CST 1.02 300 0 0 100.00K 10.00K Tornado (EF0)

National Weather Service survey crew determined a tornado caused EF-0 and EF-1 damage in the Pecan Plantation community. The tornado began in Hood County, before moving across the Brazos into Johnson County.

Johnson County 8 SW Godley 15 1911CST 1921CST 1.42 300 0 0 260.00K 0.00K Tornado (EF1)

National Weather Service survey crew determined a tornado caused EF-0 and EF-1 damage in the Pecan Plantation community. The tornado began in Hood County, before moving across the Brazos into Johnson County.

Hamilton County 1 SE Shive 15 1912CST 1915CST 0 0 10.00K 0.00K Hail (2.75)

Trained spotters reported baseball sized hail near Shive.

547 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Hood County 1 W Acton 15 1914CST 1916CST 0 0 200.00K 0.00K Thunderstorm Wind (74EG)

Skylights and roofs were damaged at Acton Middle School, northwest of downtown Acton. A tennis court fence, wind screen, and portable bleachers were damaged as well. Note: The estimated wind gust of 74 knots is equivalent to 85 mph. Anderson County 128 NNW Cayuga 15 1915CST 1921CST 0 0 80.00K 0.00K Thunderstorm Wind (61EG)

The Cooke County Emergency Manager and a Cooke County Commissioner reported several large trees were blown down. The tree damage was concentrated in the southern third of the county, along or near County Roads 337, 328 and 348. One mobile home in the same area suffered severe damage. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Johnson County 11 NW Godley 15 1919CST 1922CST 0.19 30 0 0 10.00K 0.00K Tornado (EF0)

Trained spotters observed a tornado northwest of Cresson. Damage was minimal, limited to a billboard and a few farm buildings. Tarrant County 2 SSE Grapevine 15 1931CST 1933CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)

The DFW ASOS recorded a 51 knot wind gust. Note: The measured wind gust of 51 knots is equivalent to 59 mph. Hamilton County 3 NNE Evant 15 1934CST 1936CST 0.21 30 0 0 0.00K 10.00K Tornado (EF0)

The Hamilton County Emergency Manager observed two nearly simultaneous tornadoes just north of Evant. This was the northernmost tornado of the two. Hamilton County 2 N Evant 15 1935CST 1937CST 1.04 40 0 0 0.00K 20.00K Tornado (EF0)

The Hamilton County Emergency Manager observed two nearly simultaneous tornadoes just north of Evant. This was the easternmost tornado of the two. Johnson County Cleburne 15 1956CST 2001CST 0 0 20.00K 0.00K Hail (1.75)

The Johnson County Emergency Manager relayed a report of golf ball sized hail in Cleburne.

Johnson County 6 SW Lake Pat Cleburne 15 2012CST 1 SSW Cleburne 2023CST 7.79 5200 0 7 124.00M 0.00K Tornado (EF3)

Trained storm spotters observed a nearly mile wide tornado to the southwest of the city of Cleburne. NWS storm survey crew determined this tornado produced EF-3 damage on the east side of Lake Pat Cleburne. The path of the tornado was erratic, moving initially north, then northeast, then north again.

548 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North

Home damage near Lake Pat Cleburne. Photo by Nick Hampshire, NWS Fort Worth. Johnson County Cleburne 15 2021CST 2025CST 0 0 5.00K 0.00K Thunderstorm Wind (70EG)

Trained spotters estimated 80 mph winds at the Cleburne hospital.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Johnson County 3 ESE Bono 15 2045CST 4 N Parker 2049CST 1.28 400 0 0 0.00K 20.00K Tornado (EF0)

National Weather Service storm survey crews determined a tornado produced EF-0 damage to the south and east of Cleburne.

Tarrant County 1 SW Eagle 15 2141CST 2146CST 0 0 10.00K 0.00K Hail (1.75)

Golf ball sized hail was reported by a homeowner near Eagle Mountain Lake.

Hamilton County 1 NE Hamilton Muni Arpt 15 2157CST 2159CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)

The Hamilton AWOS recorded a 51 knot wind gust. Note: The measured wind gust of 51 knots is equivalent to 59 mph. Hill County Covington 15 2220CST 2226CST 0 0 5.00K 0.00K Hail (1.75)

The Johnson County Emergency Manager reported golf ball sized hail in the city of Covington.

Tarrant County Kennedale 15 2230CST 2239CST 0 0 100.00K 0.00K Thunderstorm Wind (60EG)

Thunderstorm winds cause damage to buildings in Kennedale. Storage units had damage to doors and walls, while one building lost a roof. Note: The estimated wind gust of 60 knots is equivalent to 69 mph.

549 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Ellis County Ennis 15 2305CST 1 NE Creechville 2312CST 6.17 400 0 1 650.00K 0.00K Tornado (EF1)

National Weather Service storm survey crews determined a tornado produced EF-1 damage to downtown Ennis, before continuing to move northeast. A tornado and severe weather outbreak occurred on the afternoon and evening hours of May 15th. Nineteen tornadoes occurred, including one EF-4 and one EF-3. Six fatalities occurred in the city of Granbury, TX. These fatalities were the first in the Fort Worth county warning area since 2006. An additional 54 people were injured by the various tornadoes during the evening of May 15th. A number of homes, 171, suffered major damaged or were destroyed. An additional 513 homes suffered minor damage or were somehow affected. During the afternoon of May 15th, a vigorous upper level low moved slowly southeast from the panhandle of Texas into the Red River Valley. A dry line strengthened throughout the day, triggering thunderstorms between Bowie and the DFW metroplex. As the upper storm moved slowly east and southeast, several supercell thunderstorms developed, and most of them produced tornadoes.

Grayson County 2 N Sadler 16 0715CST 0 0 0.00K 0.00K Hail (0.88)

Nickel sized hail was reported 2 miles north of Sadler. Isolated to scattered thunderstorms developed on May 16th. Only a few reports of nickel sized hail were reported.

Navarro County 1 WNW Frost 17 0630CST 0 0 7.00K 0.00K Hail (1.75)

A CoCoRaHS observer reported hail up to the size of golf balls 1.3 miles west-northwest of Frost. The hail dented cars and damaged shingles. Navarro County Frost 17 0635CST 0 0 0.00K 0.00K Hail (1.00)

Navarro County 1 NNE Alliance Hall 17 0645CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail was reported west of Corsicana off Highway 31.

Freestone County 1 W Teague 17 0748CST 0 0 5.00K 0.00K Hail (1.75)

Golf ball sized hail was reported 1 mile west of Teague. Leon County 2 W Buffalo 17 0825CST 0 0 0.00K 0.00K Hail (0.75)

Penny sized hail was reported between Buffalo and Donie. A mesoscale cluster of thunderstorms affected the area during the morning hours of May 17th.

TXZ119 Dallas 17 1210CST 1220CST 1 0 0.00K 0.00K Excessive Heat

Severe weather dominated the headlines in May, but here were a few days with high temperatures. One child died after being left in a car in Dallas. M1VE Young County 2 ESE Lake Graham 17 1610CST 1615CST 0 0 0.00K 0.00K Hail (0.75)

Young County Graham 17 1659CST 1703CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail was reported in Graham.

550 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Young County Olney 17 1703CST 1710CST 0 0 50.00K 0.00K Hail (2.50)

The Olney Emergency Manager reported hail to the size of a baseball within the city.

Young County Graham 17 1703CST 1706CST 0 0 60.00K 0.00K Hail (2.75)

Hail increased to the size of baseballs in Graham. Young County 1 W Graham Muni Arpt 17 1705CST 1712CST 0 0 0.00K 3.00K Hail (1.75)

Trained spotters reported golf ball sized hail on the west side of Graham.

Young County Graham 17 1707CST 1712CST 0 0 0.00K 5.00K Hail (1.50)

Trained spotters reported ping pong ball sized hail in Graham.

Young County Graham 17 1709CST 1712CST 0 0 0.00K 5.00K Hail (1.75)

Trained spotters reported hail between nickel and golf ball sized hail with very little rainfall.

Young County Graham 17 1714CST 1721CST 0 0 50.00K 0.00K Hail (2.00)

Hail to the size of a chicken egg was reported on the southwest side of Graham.

Young County 2 ESE Lake Graham 17 1715CST 1721CST 0 0 0.00K 10.00K Hail (2.50)

Tennis ball sized hail was reported near Graham. Young County Graham Muni Arpt 17 1721CST 1726CST 0 0 0.00K 8.00K Hail (1.75)

Hail was reported in Graham. The hail was becoming smaller, but still included anything from the size of a nickel to the size of a golf ball. Young County Graham 17 1739CST 1743CST 0 0 60.00K 0.00K Hail (2.00)

An off duty National Weather Service meteorologist reported another round of hail in Graham. The hail was at least the size of a chicken egg. Young County 1 SE Newcastle 17 1742CST 1747CST 0 0 20.00K 0.00K Hail (2.00)

Hail to the size of a chicken egg was reported near Newcastle. Quarter and golf ball sized hail was also reported.

551 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Young County Newcastle 17 1747CST 1756CST 0 0 0.00K 10.00K Hail (3.00)

Hail to the size of a tea cup was reported in Newcastle. Young County 2 NE Graham 17 1810CST 1818CST 0 0 0.00K 10.00K Hail (3.00)

A broadcast media chaser reported hail that measured 3.5 inches in diameter.

Young County 1 WSW South Bend 17 1830CST 0 0 10.00K 0.00K Lightning

The Young County Emergency Manager reported lightning struck a tank battery, resulting in a fire. No other structures were impacted. Young County 4 NW Eliasville 17 1834CST 1837CST 1.02 75 0 0 0.00K 5.00K Tornado (EF0)

Trained spotters observed a tornado outside of Eliasville. This was the first of two tornadoes, and was the largest. However, this tornado occurred over open land, and produced little to no damage.

Young County 4 NNW Eliasville 17 1850CST 1853CST 3.14 20 0 0 80.00K 0.00K Tornado (EF1)

Trained spotters observed a tornado outside of Eliasville. This was the second of two tornadoes this day. This tornado was very narrow, but produced EF-1 damage to a home. This tornado moved from the northeast to the southwest.

Stephens County 6 NNW Ivan 17 1927CST 1932CST 0 0 20.00K 0.00K Hail (2.50)

Broadcast media reported baseball sized hail near Ivan. Young County 2 W South Bend 17 1959CST 2012CST 0 0 20.00K 80.00K Hail (2.50)

Golfball to tennis ball sized hail was reported to the west of the city of South Bend. The report was made by the South Bend Fire Department. The dry line became active during the afternoon of May 17th. Only a few storms fired along the dry line across Young and Stephens Counties. However, several reports of large hail, and two tornadoes occurred with these storms.

Eastland County Carbon 20 1448CST 1452CST 0 0 0.00K 5.00K Hail (1.75)

Golf ball sized hail was reported at the intersection of FM2526 and Highway 6.

Eastland County Eastland 20 1541CST 1543CST 0 0 0.00K 0.00K Hail (0.75)

Penny sized hail in Eastland. Jack County Jacksboro 20 1636CST 1638CST 0 0 5.00K 0.00K Hail (1.75)

Jack County Sheriff's Office reported several instances of golf ball sized hail in and near Jacksboro.

552 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Montague County 2 SE Ringgold 20 1641CST 1644CST 0.92 50 0 0 0.00K 5.00K Tornado (EF0)

Trained spotters observed a brief tornado just south of Ringgold. Damage was minimal, as the tornado remained over open land. Montague County Nocona 20 1658CST 1702CST 0 0 5.00K 0.00K Hail (1.50)

Trained spotters reported ping pong ball sized hail in Nocona.

Montague County Capps Corners 20 1729CST 1731CST 0 0 0.00K 0.00K Hail (1.00)

Trained spotters reported quarter sized hail 3 miles west of Capps Corner.

Mills County Priddy 20 1745CST 1746CST 0 0 0.00K 0.00K Hail (0.75)

Mills County 2 ENE Priddy 20 1825CST 1827CST 1.08 100 0 0 0.00K 5.00K Tornado (EF0)

The Mills County Emergency Manager observed a tornado to the east and northeast of Priddy. The tornado occurred over open land and produced minimal damage. Comanche County 3 SSW Hasse 20 1900CST 2 WSW Gustine 2022CST 0 0 0.00K 10.00K Flash Flood

Comanche County Sheriff's Office reported flooded roads due to heavy rainfall. The roads closures were on Texas Highway 36 approximately 6 miles southeast of the city of Comanche, along with Farm to Market Road 1702 South, and Farm to Market Road 1476 North.

Hamilton County Hamilton 20 1940CST 1943CST 0 0 3.00K 0.00K Hail (1.50)

The Hamilton County Emergency Manager reported ping pong ball sized hail in the city of Hamilton.

Hamilton County Hamilton 20 1947CST 1950CST 0 0 0.00K 0.00K Hail (1.00)

Hamilton Fire Department reported quarter sized hail in the city of Hamilton.

Mills County 1 W Priddy 20 1950CST 1952CST 0 0 0.00K 0.00K Hail (0.88)

Nickel hail was reported 1 mile west of Priddy, near Farm to Market Road 218 and County Road 132.

Hamilton County Pottsville 20 2010CST 2012CST 0 0 3.00K 0.00K Hail (1.75)

Trained spotters reported golf ball sized hail in Pottsville.

553 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Hamilton County 1 N Blue Ridge 20 2021CST 2023CST 0 0 0.00K 0.00K Hail (1.00)

A Hamilton county sheriff's deputy reported quarter sized hail.

Mills County Priddy 20 2042CST 2044CST 0 0 2.00K 0.00K Hail (1.75)

Golf ball sized hail was reported in, and west of, the city of Priddy.

Hamilton County 2 SSW Shive 20 2135CST 2138CST 0 0 10.00K 0.00K Hail (1.50)

Ping Pong ball sized hail was reported west of the city of Evant.

Hamilton County 7 NNE Pottsville 20 2140CST 4 SW Fairy 2216CST 0 0 0.00K 6.00K Flood

Hamilton County Sheriff's office reported several low water crossings were barricaded in and around the city of Hamilton.

Coryell County 1 WSW Purmela 20 2218CST 2223CST 0 0 0.00K 10.00K Hail (1.75)

Trained Spotters reported golf ball sized hail, nine miles east of Evant.

Coryell County 6 NW Bee House 20 2223CST 2226CST 0 0 0.00K 0.00K Hail (1.00)

Trained spotters reported nickel to quarter sized hail, approximately 12 miles east of Evant.

The dry line was once again active on the afternoon of May 20th. Thunderstorms developed along and ahead of the dry line, producing severe thunderstorms from Montague to Mills Counties.

Stephens County 5 S Hubbard Creek Lake 21 1115CST 1119CST 0 0 0.00K 0.00K Hail (1.00)

Stephens County sheriffs deputies reported quarter sized hail six miles west of Breckenridge.

Wise County 1 SW Decatur Muni Arpt 21 1214CST 1217CST 0 0 10.00K 0.00K Thunderstorm Wind (55MG)

The Decatur AWOS reported a wind gust of 55 knots. Note: The measured wind gust of 55 knots is equivalent to 63 mph. Denton County 1 N Denton Muni Arpt 21 1238CST 1240CST 0 0 35.00K 0.00K Thunderstorm Wind (63MG)

The Denton ASOS reported a wind gust of 63 knots. Note: The measured wind gust of 63 knots is equivalent to 72 mph.

554 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Denton County Pilot Pt 21 1245CST 1248CST 0 0 20.00K 0.00K Thunderstorm Wind (54MG)

A trained spotter measured a wind gust of 62 mph at the intersection of US377 and FM455.

Note: The measured wind gust of 54 knots is equivalent to 62 mph. Tarrant County Haslet 21 1255CST 1310CST 0 0 20.00K 0.00K Thunderstorm Wind (52EG)

Roof damage was reported in Haslet. Singles were blown off of a few houses.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Tarrant County Grapevine 21 1300CST 1305CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A former NWS employee reported a wind gust of 60 mph in Grapevine.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Grayson County Gunter 21 1325CST 1327CST 0 0 0.00K 5.00K Thunderstorm Wind (61EG)

Trained spotters reported a 14 inch diameter tree was blown down near Gunter.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Collin County Fairview 21 1333CST 1342CST 0 0 50.00K 0.00K Thunderstorm Wind (56EG)

The McKinney COOP observer reported large tree limbs and branches blown down.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Collin County 2 NNW Biggers 21 1333CST 1335CST 0 0 50.00K 0.00K Thunderstorm Wind (59MG)

The McKinney ASOS reported a wind gust of 68 mph. Note: The measured wind gust of 59 knots is equivalent to 68 mph. Collin County Mckinney 21 1333CST 1342CST 0 0 50.00K 0.00K Thunderstorm Wind (56EG)

Trees were blown down in McKinney, at the intersection of Fairway Vista and Valley Creek. Reported by amateur radio operators. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Collin County Mckinney 21 1333CST 1334CST 0 0 50.00K 0.00K Thunderstorm Wind (56EG)

Trained spotters reported trees damaged near Virginia Parkway and Carlisle Street in McKinney. Large branches snapped.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Dallas County 1 N Garland 21 1340CST 1343CST 0 0 10.00K 0.00K Thunderstorm Wind (50MS)

A sustained wind of 58 mph was measured at a home in Garland. Report came in through e-spotter.

Note: The measured wind speed of 50 knots is equivalent to 58 mph. 555 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Dallas County Garland 21 1343CST 1346CST 0 0 30.00K 0.00K Thunderstorm Wind (60EG)

A trained spotter measured a wind gust of 69 mph in Garland.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Collin County Princeton 21 1349CST 1351CST 0 0 50.00K 0.00K Thunderstorm Wind (56EG)

A trained spotter estimated winds near 65 mph in Princeton. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Grayson County Pilot Grove 21 1350CST 1352CST 0 0 0.00K 10.00K Thunderstorm Wind (56EG)

Large trees were blown down due to thunderstorm winds in Pilot Grove.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Collin County Farmersville 21 1400CST 1403CST 0 0 40.00K 0.00K Thunderstorm Wind (54EG)

A trained spotter measured 62 mph winds in Farmersville. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Lamar County Paris 21 1424CST 1426CST 0 0 70.00K 30.00K Thunderstorm Wind (61EG)

Paris police reported several trees and power lines blown down in the city of Paris.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Lamar County Paris 21 1425CST 1429CST 0 0 0.00K 5.00K Thunderstorm Wind (56EG)

A 2 foot diameter tree was snapped in the city of Paris. The damage occurred near the intersection of 10th Street SE and Hearon. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Cooke County Gainesville 21 1430CST 1830CST 0 0 200.00K 0.00K Lightning

Several fires were started by lightning on the afternoon of May 21st. Two houses suffered fire damage after lightning struck their roof. Another lightning strike destroyed a battery of oil tanks near County Road 208.

Lamar County Reno 21 1430CST 1434CST 0 0 0.00K 5.00K Thunderstorm Wind (61EG)

Trees and power lines were blown down by thunderstorm winds in the city of Reno.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Hunt County 1 SSE Caddo Mills 21 1445CST 1452CST 0 0 100.00K 0.00K Thunderstorm Wind (60EG)

The Hunt County Emergency Manager reported power lines and tree limbs blown down throughout the county. Homes in the Royse City and Caddo Mills areas suffered roof and fence damage. Two barns along County Road 2630 were also damaged by the winds. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. 556 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Ellis County Ferris 21 1520CST 1524CST 0 0 0.00K 0.00K Hail (0.88)

Ellis County Palmer 21 1522CST 1524CST 0 0 0.00K 0.00K Hail (0.88)

Bell County 2 SE Killeen Muni Arpt 21 1524CST 1529CST 0 0 0.00K 0.00K Hail (1.00)

Trained spotters reported quarter sized hail. Bell County 2 SE Killeen Muni Arpt 21 1525CST 1529CST 0 0 0.00K 0.00K Hail (0.88)

Nickel sized hail was reported. Bell County 2 ESE Belton Lake 21 1545CST 1549CST 0 0 30.00K 0.00K Thunderstorm Wind (56EG)

Trained spotters reported damage near Morgans Point. A large tree fell onto a car.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Bell County Hood Afb 21 1547CST 1553CST 0 0 0.00K 0.00K Hail (1.00)

Broadcast media spotter reported nickel to quarter sized hail near Fort Hood.

Bell County Temple 21 1628CST 1632CST 0 0 0.00K 0.00K Hail (0.75)

Henderson County Athens 21 1637CST 1646CST 0 0 6.00K 0.00K Thunderstorm Wind (61EG)

Several trees and power lines were blown down by thunderstorm winds. The Henderson County Sheriff's Office report showed 16 calls of trees down across the city of Athens and across the county.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Freestone County 4 S Cotton Gin 21 1712CST 1715CST 0 0 0.00K 0.00K Hail (0.75)

Robertson County Franklin 21 1800CST 1808CST 0 0 0.00K 0.00K Hail (0.75)

Robertson County Franklin 21 1808CST 1814CST 0 0 0.00K 0.00K Hail (1.25)

Hail increased to the size of a half dollar in Franklin.

557 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Leon County Leona 21 1850CST 1855CST 0 0 0.00K 0.00K Hail (0.88)

Robertson County 2 NE Mumford 21 1900CST 1907CST 0 0 0.00K 0.00K Hail (0.75)

Navarro County Rice 21 1904CST 1914CST 0 0 0.00K 0.00K Hail (0.75)

Henderson County 4 SE Cedar Creek Res Nort 21 1920CST 1924CST 0 0 0.00K 0.00K Hail (0.88)

A cold front interacted with an existing dry line on the 21st of the month. A line of thunderstorms developed early in the day to the north of the Red River. The line continued to move south and east, moving into increasingly unstable air across north Texas. Numerous reports of large hail and damaging winds were reported.

Tarrant County 3 SSE Tarrant 29 1657CST 1704CST 0 0 30.00K 0.00K Thunderstorm Wind (56EG)

A large tree was blown onto a car near State Highway 360 and Green Oaks Boulevard in north Arlington.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Tarrant County Euless 29 1658CST 1704CST 0 0 10.00K 0.00K Thunderstorm Wind (56EG)

A large tree was blown down by thunderstorm winds in Euless.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Tarrant County 4 NNW Grand Prairie 29 1704CST 1706CST 0 0 5.00K 0.00K Thunderstorm Wind (48EG)

Several tree branches were blown down by thunderstorm winds. Several power lines were affected, causing a power loss to several homes in Grand Prairie. Note: The estimated wind gust of 48 knots is equivalent to 55 mph. Tarrant County 2 N Grapevine 29 1709CST 1712CST 0 0 4.00K 0.00K Hail (1.25)

A trained spotter reported half dollar sized hail. Tarrant County 4 NNE Greater Sw Intl Arpt 29 1711CST 1714CST 0 0 10.00K 0.00K Thunderstorm Wind (50MG)

KDFW measured a wind gust of 58 mph. Note: The measured wind gust of 50 knots is equivalent to 58 mph. Denton County 4 E Grapevine Res 29 1715CST 1718CST 0 0 0.00K 0.00K Hail (0.88)

Nickel sized hail fell on the west side of Flower Mound.

558 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Denton County Lewisville 29 1718CST 1723CST 0 0 0.00K 0.00K Hail (1.75)

Broadcast media reported golf ball sized hail in Lewisville.

Denton County 5 WSW Lewisville 29 1718CST 1723CST 0 0 0.00K 10.00K Hail (1.50)

Hail increased in size in Flower Mound. Trained spotters reported ping pong ball hail between FM2499 and Morris.

Tarrant County Mansfield 29 1719CST 1723CST 0 0 20.00K 0.00K Thunderstorm Wind (52EG)

Arlington Emergency Management reported an 18 inch diameter tree fell onto a mobile home in Breezy Oaks mobile home park. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Denton County 3 ESE Bartonville 29 1723CST 1725CST 0 0 10.00K 0.00K Hail (1.50)

Trained spotters reported ping pong ball sized hail in Flower Mound.

Denton County Corinth 29 1725CST 1731CST 0 0 5.00K 0.00K Hail (1.75)

Denton County Emergency Management office reported golf ball sized hail in Corinth.

Denton County 1 WSW Denton 29 1730CST 1734CST 0 0 0.00K 0.00K Hail (1.00)

Trained spotters reported quarter sized hail on Interstate 35 in the city of Denton.

Denton County 2 SW Mingo 29 1735CST 1741CST 0 0 0.00K 0.00K Hail (1.00)

Denton Emergency Management reported quarter sized hail on Highway 380 at Loop 288.

Denton County Lake Dallas 29 1736CST 1741CST 0 0 0.00K 0.00K Hail (1.50)

Trained spotters reported ping pong ball sized hail at Lake Dallas.

Denton County 2 WSW Denton Hartlee Arpt 29 1738CST 1741CST 0 0 10.00K 0.00K Hail (2.00)

A report of hail to the size of a chicken egg was reported 4 miles northeast of the city of Denton.

Denton County 3 SSW Mingo 29 1745CST 1751CST 0 0 10.00K 0.00K Hail (2.00)

Denton Emergency Management reported 2 inch diameter hail in Denton, at the intersection of McKinney and 288.

559 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Denton County 2 WSW Mingo 29 1755CST 1759CST 0 0 5.00K 0.00K Hail (1.25)

Half dollar sized hail was reported in the city of Denton. Denton County Bartonville 29 1915CST 0 0 110.00K 0.00K Lightning

The Denton County Fire marshal reported a house in the 9300 block of Blanco Drive caught fire after lightning struck the roof. The house was severely damaged, causing the home to be temporarily uninhabitable. Due to the fire, the roof is completely gone and the first floor suffered water damage. The siding of a neighboring house was damaged by the heat of the fire.

Montague County 4 WSW Forestburg 29 2017CST 2021CST 0 0 10.00K 0.00K Thunderstorm Wind (61EG)

A barn roof and power line was blown down onto the road. Damage occurred on FM 1749 and Boyd road, approximately 3 miles southwest of Forestburg. A cluster of Thunderstorms occurred during the afternoon and evening of May 29th. A dry line was moving east from west Texas, but the strong to severe thunderstorms developed ahead of the dry line, producing several reports of gusty thunderstorm winds. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Montague County 2 SE Ringgold 30 1700CST 1704CST 0 0 0.00K 0.00K Hail (0.75)

Montague County 6 SSW Spanish Ft 30 1743CST 1749CST 0 0 0.00K 0.00K Hail (1.00)

Nocona VFD reported quarter sized hail near Lake Nocona. Montague County 6 N Nocona 30 1745CST 1749CST 0 0 0.00K 5.00K Hail (1.75)

Golf ball sized hail ways reported approximately 3 miles west of Lake Nocona.

Montague County 4 S Rowland 30 1753CST 1756CST 0 0 0.00K 5.00K Hail (1.50)

Ping pong ball was reported at Lake Nocona, by a Montague County sheriff's deputy.

Isolated thunderstorms developed along the southwestern side of a cold front / dry line on the 30th. Thunderstorms affected mainly Montague County.

TEXAS, North Panhandle

TXZ001>020 Armstrong - Carson - Collingsworth - Dallam - Deaf Smith - Donley - Gray - Hansford - Hartley - Hemphill - Hutchinson - Lipscomb - Moore - Ochiltree - Oldham - Potter - Randall - Roberts - Sherman - Wheeler 01 0000CST 31 2359CST 0 0 0.00K 410.0M Drought

Drought conditions worsened during the month of May despite a few precipitation events during the latter half of the month. Exceptional (D4) drought encompasses the northern and western portions of the Texas Panhandle with Extreme (D3) drought affecting the southeastern portion of the Texas Panhandle. Severe (D2) drought only affects Gray County. May brought many late freezes and several opportunities for precipitation. Amarillo recorded 2.80 inches of precipitation for May (0.51 above normal), Dalhart recorded 0.44 inches of precipitation (1.80 inches below normal), and Borger recorded 1.08 inches of precipitation (1.81 inches below normal). This May was the 32nd warmest and 5th driest May on records for the Texas High Plains Region.

560 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle

The scattered precipitation during the month of May has helped improve some of the dormant fuels across the Panhandle. The Keetch-Byram Drought Index showed marginal improvement from April. The northwestern potion of the Texas Panhandle falls within the 600 to 800 range while the majority of the area stayed within the 400 to 600 range. The 200 to 400 range now encompasses Roberts County, Hutchinson County, and Gray County. Countywide burn bans remain in effect for all of the Texas Panhandle except for Hansford, Roberts, Hemphill, Oldham, Gray, Donley, Collingsworth and Deaf Smith Counties.

The sparse precipitation for the month and several freezes severely impacted developing crops. Irrigated crops remain in fair conditions however; it is not the peak water demand period for these crops. Rangeland and pastures across the Texas Panhandle have remained in poor to very poor condition as observed by the Texas Crop and Weather Report. The Palmer Drought Severity Index for the month of May showed degradation in conditions to Extreme Drought for the Texas High Plains.

Reservoirs and stream flows across the Panhandles have remained at below normal levels. The reservoirs of Palo Duro and Greenbelt Lake are both below 12 percent capacity with Lake Meredith at zero percent capacity. Water watches for several public water systems persisted through May while voluntary to mandatory mild water restrictions have been enacted.

Economic losses due to the drought through May were estimated near $5 million (D2)/$10 million (D3)/$20 million (D4) a county, and were predominately the result for poor growth of new crops, heavy supplemental watering, reduction of cattle herd sizes, and supplemental feed for cattle in pastures and rangeland.

TXZ002>007-011> Armstrong - Carson - Deaf Smith - Gray - Hansford - Hartley - Lipscomb - Moore - Ochiltree - Oldham - 014-016>018 Potter - Randall - Sherman 01 2155CST 02 0840CST 0 0 0.00K 0.00K Cold/Wind Chill

A cold front moved through the Texas Panhandle during the day on the 1st, and the post frontal airmass allowed temperatures to drop below freezing quickly after sunset. These subfreezing temperatures threatened sensitive vegetation during the start of the growing season. Overnight lows ranged from 30 degrees at Bootleg (Deaf Smith County) to 32 degrees at Perryton (Ochiltree County). Temperatures quickly warmed above freezing during the late morning of the 2nd.

TXZ001>020 Armstrong - Carson - Collingsworth - Dallam - Deaf Smith - Donley - Gray - Hansford - Hartley - Hemphill - Hutchinson - Lipscomb - Moore - Ochiltree - Oldham - Potter - Randall - Roberts - Sherman - Wheeler 02 2155CST 03 0900CST 0 0 0.00K 0.00K Cold/Wind Chill

A residual cold airmass over the Texas Panhandle from a cold frontal passage earlier in the week allowed temperatures to drop below freezing during the evening hours of the 2nd. These subfreezing temperatures threatened sensitive vegetation during the start of the growing season. Overnight lows ranged from 21 degrees at Hereford (Deaf Smith County) to 31 degrees at Boys Ranch (Oldham County). Temperatures quickly warmed above freezing during the late morning of the 3rd.

04 0400CST 0800CST 0 0 0.00K 0.00K Cold/Wind Chill

TXZ002>011-016 Deaf Smith - Hansford - Hartley - Hemphill - Hutchinson - Lipscomb - Moore - Ochiltree - Oldham - Roberts - Sherman 04 0400CST 0800CST 0 0 0.00K 0.00K Cold/Wind Chill

The residual cold airmass over the Texas Panhandle from a cold frontal passage earlier in the week had begun to modify. This kept overnight low temperatures from cooling as quickly as previous nights. Freezing temperatures were not obtained until the early morning hours on the 4th. These subfreezing temperatures threatened sensitive vegetation during the start of the growing season. Overnight lows ranged from 26 degrees at Dalhart (Hartley and Dallam County) to 32 degrees at Miami (Roberts County). Temperatures quickly warmed above freezing during the mid-morning of the 4th.

TXZ004-016 Deaf Smith - Ochiltree 05 0500CST 0700CST 0 0 0.00K 0.00K Cold/Wind Chill

561 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle

The residual cold airmass over the Texas Panhandle from a cold frontal passage earlier in the week had begun to modify. This kept overnight low temperatures from cooling as quickly as previous nights. Freezing temperatures were not obtained until the early morning hours on the 5th. These subfreezing temperatures threatened sensitive vegetation during the start of the growing season. Overnight lows ranged from 30 degrees at Hereford (Deaf Smith County) to 31 degrees at Perryton (Ochiltree County). Temperatures quickly warmed above freezing during the late morning of the 5rd.

Collingsworth County 5 N Quail 08 1532CST 7 NE Samnorwood 1533CST 0 0 0.00K 0.00K Hail (1.25)

As a thunderstorm moved to the northeast across the southeastern Texas Panhandle, 7 miles north of the city of Quail (Collingsworth County) it produced hail up to the size of half dollar.

Wheeler County 4 SW Mobeetie 08 1545CST 2 NE New Mobeetie 1550CST 0 0 0.00K 0.00K Hail (1.75)

A thunderstorm moved across Wheeler County during the afternoon hours of the 8th. One mile south of Mobeetie (Wheeler County) a trained storm spotter reported golf ball size hail as the thunderstorm moved to the northeast.

Collingsworth County 10 WSW Quail 08 1608CST 1612CST 0 0 0.00K 0.00K Hail (0.88)

A trained storm spotter observed a decaying thunderstorm producing nickel size hail seven miles east of Hedley (Donley County). Collingsworth County 6 N Quail 08 1624CST 4 SSW Dozier 1631CST 0 0 0.00K 0.00K Hail (1.25)

A trained storm spotter observed a thunderstorm seven miles north of Quail (Collingsworth County) producing half dollar size hail. Wheeler County 1 WSW Shamrock 08 1649CST 1656CST 0 0 0.00K 0.00K Hail (1.75)

A thunderstorm moved over the city of Sherman (Wheeler County) during the afternoon hours of the 8th. While over the city, the thunderstorm produced hail up to the size of golf balls as reported by a trained storm spotter.

Wheeler County 1 WSW Shamrock 08 1650CST 1655CST 0 0 0.00K 0.00K Hail (1.75)

A thunderstorm moved over the city of Sherman (Wheeler County) during the afternoon hours of the 8th. While over the city, the thunderstorm produced hail up to the size of golf balls as reported by law enforcement.

The combination of a surface cold front stretched across the central Texas Panhandle and weak upper level divergence lead to the development of thunderstorms during the afternoon hours of the 8th. These thunderstorms intensified quickly in an area of modest instability and moderate deep layer shear. Once sufficiently organized, the thunderstorms advanced eastward ahead of the cold front producing scattered hail reports in Collingsworth and Wheeler Counties. As these thunderstorms entered western Oklahoma, they encountered a stronger capped environment. Without the additional forcing provided by the front they quickly diminished. Donley County 5 SW Howardwick 09 1651CST 1657CST 0 0 0.00K 0.00K Hail (0.88)

As a thunderstorm developed over Donley County, it produced nickel size hail 5 miles southwest of Howardwick (Donley County). This storm slowly moved to the northeast and began to quickly decay due to the inflow getting cut off by another developing thunderstorm to the south. Before dissipating this thunderstorm also produced pea size hail one mile northwest of Howardwick (Donley County).

562 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle Donley County 3 ESE Ashtola 09 1702CST 1712CST 0 0 10.00K 0.00K Hail (1.75)

A thunderstorm developed over southern Donley County and slowly drifted to the south while intensifying. A storm chaser intercepted this thunderstorm as it crossed US Highway 287 5 miles west-southwest of Greenbelt Lake (Donley County). By that point the thunderstorm was producing copious amounts of hail up to golf ball size. Three to four inches of hail accumulation was estimated by the storm chaser on the highway. This created slick spots on US Highway 287 which caused a few motorist to lose control and swerve into the ditch. No injuries were reported with these accidents.

Gray County 2 NNE Lefors 09 1823CST 1828CST 0 0 0.00K 0.00K Hail (1.75)

The merger of two discrete thunderstorms over central Gray County caused the production of hail from quarter to golf ball size. The Gray County Emergency Manager reported that the hail accumulated enough to cover the ground in the town of Lefors (Gray County). The merged storms slowly tracked to the south before disipating over northern Donley County.

Gray County 1 ENE Lefors 09 1841CST 1844CST 0 0 0.00K 0.00K Hail (1.75)

The merger of two discrete thunderstorms over central Gray County caused the production of hail from quarter to golf ball size. A trained storm spotter in Lefors (Gray County) reported golf ball hail in the city. The merged storms slowly tracked to the south before disipating over northern Donley County.

Gray County 1 ENE Lefors 09 1851CST 1855CST 0 0 0.00K 0.00K Hail (1.00)

A decaying thunderstorm from a prior storm merger produced quarter size hail 1 mile south of Lefors (Gray County) as reported by the Gray County Emergency Manager. Four inches of accumulated quarter size hail was also reported by the Gray County Emergency Manager on US Highway 273. This created slick road conditions, but no vehicle accidents were reported.

An elongated mid-level trough positioned from the Midwest to the Baja Peninsula provided the large scale forcing to help numerous thunderstorms to develop during the afternoon and evening hours of the 9th. Residual surface outflow boundaries also provided low level forcing to allow developing thunderstorms obtain access to marginal to moderate elevated instability across the Texas Panhandle. However, the thunderstorms that developed across the southeastern Texas Panhandle had the more favorable environment for development thanks to a relative maximum of elevated instability and ample deep layer shear. Several reports of hail were relayed to the National Weather Service as thunderstorms moved across the southeastern Texas Panhandle with golf ball being the largest size given. While hail was the primary hazard for this event a 60 mph thunderstorm wind gust was observed in Potter County as the upper level trough axis rotated through the Texas Panhandle. Convection across the Texas Panhandle ended prior to 9 PM CST due to the upper level forcing progressing to the east.

Potter County 6 SW Amarillo 09 1924CST 1954CST 0 0 0.00K 0.00K Heavy Rain

Thunderstorms developed over Amarillo shortly before 7:30 PM CST. These thunderstorms lasted for a half hour and produced brief heavy rain. A National Weather Service employee reported 0.47 inches of rain at their residence (Potter County).

Potter County 7 SW Amarillo 09 1924CST 1954CST 0 0 0.00K 0.00K Heavy Rain

Thunderstorms developed over Amarillo shortly before 7:30 PM CST. These thunderstorms lasted for a half hour and produced brief heavy rain. The KVII schoolnet site at Bonham Middle School (Potter County) reported 0.50 inches of heavy rain in association with these thunderstorms. No reports of street flooding accompanied this report.

563 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle Potter County 6 SW Amarillo 09 1924CST 1954CST 0 0 0.00K 0.00K Heavy Rain

Thunderstorms developed over Amarillo shortly before 7:30 PM CST. These thunderstorms lasted for a half hour and produced brief heavy rain. The KVII schoolnet site at Cornado Elementary School (Potter County) reported 0.83 inches of heavy rain in association with these thunderstorms. No reports of street flooding accompanied this report.

Potter County Amarillo 09 1924CST 1954CST 0 0 0.00K 0.00K Heavy Rain

Thunderstorms developed over Amarillo shortly before 7:30 PM CST. These thunderstorms lasted for a half hour and produced brief heavy rain. The KVII studio in downtown Amarillo (Potter County) reported 0.41 inches of heavy rain in association with these thunderstorms. No reports of street flooding accompanied this report.

Randall County 7 SW Amarillo 09 1924CST 1954CST 0 0 0.00K 0.00K Heavy Rain

Thunderstorms developed over Amarillo shortly before 7:30 PM CST. These thunderstorms lasted for a half hour and produced brief heavy rain. A total of 0.52 inches of precipitation was reported in southwest Amarillo (Randall County) by a member of the public. An elongated mid-level trough positioned from the Midwest to the Baja Peninsula provided the large scale forcing to help numerous thunderstorms to develop during the afternoon and evening hours of the 9th. Residual surface outflow boundaries also provided low level forcing to allow developing thunderstorms obtain access to marginal to moderate elevated instability across the Texas Panhandle. While the Precipitable Water value on the 9th was about average for early May, several reports of heavy rain were reported in and around Amarillo (Potter and Randall County). This heavy rain led to localized flooding of flood prone roads across southern and central Amarillo (Potter and Randall County). Precipitation across the Texas Panhandle ended prior to 9 PM CST due to the upper level forcing progressing to the east.

Potter County 4 ESE (AMA)Amarillo Intl A 09 1946CST 1947CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A collapsing thunderstorm produced a 60 mph wind gust. A storm chaser for a local broadcast media outlet observed this wind gust at the fork of US Highway 287 and Interstate 40 (Potter County). No damage or injuries were associated with this wind gust. An elongated mid-level trough positioned from the Midwest to the Baja Peninsula provided the large scale forcing to help numerous thunderstorms to develop during the afternoon and evening hours of the 9th. Residual surface outflow boundaries also provided low level forcing to allow developing thunderstorms obtain access to marginal to moderate elevated instability across the Texas Panhandle. However, the thunderstorms that developed across the southeastern Texas Panhandle had the more favorable environment for development thanks to a relative maximum of elevated instability and ample deep layer shear. Several reports of hail were relayed to the National Weather Service as thunderstorms moved across the southeastern Texas Panhandle with golf ball being the largest size given. While hail was the primary hazard for this event a 60 mph thunderstorm wind gust was observed in Potter County as the upper level trough axis rotated through the Texas Panhandle. Convection across the Texas Panhandle ended prior to 9 PM CST due to the upper level forcing progressing to the east. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

TXZ004-012-017- Armstrong - Ochiltree - Potter - Randall 018 18 0159CST 1715CST 0 0 0.00K 0.00K High Wind

564 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle

During the early morning hours of the 18th multiple high wind gusts were reported across the southern Texas Panhandle. Light showers formed across southwestern Randall County around 1:30 AM CST in response to a weak upper level trough moving northeastward out of New Mexico. However, the atmosphere below the cloud bases was extremely dry and evaporated precipitation prior to reaching the ground. Just before 2 AM CST, these virga showers moved over Palo Duro State Park (Randall County) where the accelerated downward motion caused by evaporation produced a 69 mph non-thunderstorm wind gust. This wind gust was measured by the West Texas Mesonet site in the park. The showers moved to the northeast into Potter County, and crossed over the Amarillo International Airport (Potter County). While over the airport, the showers produced another 69 mph wind gust at 2:32 AM CST, which was measured by the National Weather Service ASOS. The showers moved into Gray County by 4 AM CST, and began to show signs of diminishing. As the showers collapsed over Pampa (Gray County) they produced high winds, and a member of the public reported several small trees had become uprooted at 4:30 AM CST. With the showers diminished no further reports of high winds were received through the rest of the morning hours. Showers redeveloped during the afternoon hours of the 18th as a stronger upper trough across New Mexico and Colorado approached the Texas Panhandle. The dry sub-cloud layer was still in place, and caused precipitation from these showers to evaporate prior to reaching the ground. The strengthened downward motion produced high wind damage 19 miles south of the city of Perryton (Ochiltree County) at 4:33 PM CST. The Ochiltree Sheriffs Office reported that power poles on US Highway 281 between County Road 70 and County Road 83 had been blown down onto the road. By 5:00 PM CST, the showers had moved east of Perryton before producing additional high wind damage. The Ochiltree Sherriffs Office reported that power poles along US Highway 377 between Count Road 20 and County Road 21 had been blown down onto the road. By 5:15 PM CST, the showers had moved over the Texas Department of Transportation AWOS site east-northeast of Perryton where a 58 mph wind gust was measured. Shortly after producing this gust, the showers dissipated as storm outflows from the Oklahoma Panhandle eliminated the inflow for these showers.

Randall County 1 E Canyon 21 0702CST 0705CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

A thunderstorm developed over southern Randall County during the mid-morning hours of the 21st. As the thunderstorm moved to the northeast it encountered a strongly sheared environment which toppled the storm structure. The core of the thunderstorm collapsed 1 mile east of the city of Canyon (Randall County) causing a 61 mph downburst. This downburst was measured by a trained storm spotter near the West Texas A&M University Event Center.

A vigorous low pressure system swept across the Great Plains during the early morning hours of the 21st. A shortwave trough rotated around the base of this system and helped initiate showers and thunderstorms over the southern Texas Panhandle. However, the forcing was not sufficient for this convection to overcome the strong nocturnal inversion and tap into the marginal elevated instability. The strong deep layer shear easily toppled developing thunderstorms which led to isolated downbursts as thunderstorms collapsed. The shortwave quickly moved to the east, shifting the favorable environment for development out of the Texas Panhandle by the late morning hours. Note: The measured wind gust of 53 knots is equivalent to 61 mph. Potter County 1 SSE Amarillo 21 0702CST 0912CST 0 0 0.00K 0.00K Heavy Rain

Brief heavy rain caused water to cover one lane of Osage Road south of Interstate 40 in Amarillo (Potter County), as reported by an off duty National Weather Service Employee. The water quickly receded once the rain stopped.

Randall County 7 SW Amarillo 21 0702CST 0912CST 0 0 0.00K 0.00K Heavy Rain

A member of the public reported 0.46 inches of rain in quick bursts over the course of two and one half hour in southwest Amarillo (Randall County). A vigorous low pressure system swept across the Great Plains during the early morning hours of the 21st. A shortwave trough rotated around the base of this system and helped initiate showers and thunderstorms over the southern Texas Panhandle. However, the forcing was not sufficient for this convection to overcome the strong nocturnal inversion and tap into the marginal elevated instability. The strong deep layer shear easily toppled developing thunderstorms which led to brief periods of heavy rain. The water quickly receded once showers and thunderstorms ended over the city. The shortwave quickly moved to the east, shifting the favorable environment for development out of the Texas Panhandle by the late morning hours.

Randall County Canyon 21 0705CST 0707CST 0 0 15.00K 0.00K Thunderstorm Wind (53EG)

565 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle

A thunderstorm developed over southern Randall County during the mid-morning hours of the 21st. As the thunderstorm moved to the northeast it encountered a strongly sheared environment which toppled the storm structure. The core of the thunderstorm collapsed 1 mile east of the city of Canyon (Randall County) causing a dangerous cross wind on Interstate 27. This cross wind caused two semi-tractor trailers to be overturned. No injuries were reported in association with this damage, wind speed estimated from similar report in the area, and property damage values estimated.

A vigorous low pressure system swept across the Great Plains during the early morning hours of the 21st. A shortwave trough rotated around the base of this system and helped initiate showers and thunderstorms over the southern Texas Panhandle. However, the forcing was not sufficient for this convection to overcome the strong nocturnal inversion and tap into the marginal elevated instability. The strong deep layer shear easily toppled developing thunderstorms which led to isolated downbursts as thunderstorms collapsed. The shortwave quickly moved to the east, shifting the favorable environment for development out of the Texas Panhandle by the late morning hours. Note: The estimated wind gust of 53 knots is equivalent to 61 mph.

Image of the overturned tractor trailer off of Interstate 27. Picture provided by the Amarillo Emergency Manager. Potter County 12 N Amarillo 23 1636CST 11 NNW (AMA)Amarillo Intl A 1638CST 0 0 0.00K 0.00K Hail (1.00)

A discrete thunderstorm developed over southern Moore County and moved to the southeast. As the storm moved to the southeast it entered Potter County and reached the northern city limits of Amarillo (Potter County). The thunderstorm produced 1 inch hail on US Highway 287 before having its inflow undercut by another thunderstorm. This thunderstorm quickly decayed and did not cause any further severe weather reports. Isolated thunderstorms developed over the south central Texas Panhandle during the late afternoon hours of the 23rd. Multiple surface boundaries, moderate elevated instability, and a weak midlevel shortwave proved insufficient to allow for thunderstorm initiation over the Texas Panhandle. Thunderstorm initiation occurred over Floyd County and the outflow from this thunderstorm gave the final bit of forcing needed to initiate two discrete thunderstorms, one over northern Potter and the other over southern Moore Counties. The thunderstorm over southern Moore County took a southeastern track which brought it to the northern city limits of Amarillo (Potter County). At the same time the northern Potter County thunderstorm took a northerly track, taking it into Moore County. The northerly track thunderstorm crossed behind the other thunderstorm and cut off the inflow to that thunderstorm. By this point the southeastern track storm had entered the northern city limits of Amarillo (Potter County). The Amarillo (Potter County) thunderstorm produced 1 inch hail on highway 287 before decaying due to its inflow being cut off by the other storm. The northern track thunderstorm moved into northern Moore County before decaying as well. No other thunderstorms developed due to the capping inversion strengthening after sunset.

Deaf Smith County 8 W Bootleg 25 1919CST 1920CST 0 0 0.00K 0.00K Hail (0.88)

A line of thunderstorms moved out of eastern New Mexico and into the Texas Panhandle. As the storms moved over the city of Bootleg (Deaf Smith County), the fire department reported nickel size hail. The line moved quickly to the east, and only produced pea size hail.

566 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle Potter County 3 ENE Bushland 25 1944CST 1946CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

A line of thunderstorms moved over the town of Bushland. This line encountered a stronger capped environment which caused the strongest cell to collapse. The outflow from this cell collapse was measured to be 61 mph by the KVII Schoolnet site in Bushland (Potter County). No thunderstorm wind damage was reported in associated with this gust. The outflow allowed thunderstorms to continue moving to the east but no further severe reports were received.

Scattered thunderstorms developed over the eastern New Mexico Plains during the afternoon hours of the 25th. These storms developed along a dryline stretching from southern New Mexico to the central Oklahoma Panhandle. The low level convergence along the dryline allowed the storms to overcome low level capping inversions and tap into elevated instability that was in place across the Texas Panhandle. The thunderstorms moved to the east eventually becoming self-sustaining shortly after entering the southwestern Texas Panhandle. While over Oldham and Deaf Smith Counties these storms produced sub- severe hail across both counties. As the storms moved into Potter and Randall Counties, they encountered a more capped environment which caused the main thunderstorm to collapse. The cold pool created by this storm collapsed allowed thunderstorms to persist well into Potter and Randall Counties where reports of sub-severe hail and wind were reported to the National Weather Service in Amarillo (Potter County). A stronger capping inversion over Armstrong and Carson Counties quickly suppressed residual convection. Note: The measured wind gust of 53 knots is equivalent to 61 mph.

TXZ016 Deaf Smith 25 2034CST 2035CST 0 0 0.00K 0.00K High Wind

A collapsing thunderstorm over Potter and Randall County sent an outflow boundary in all directions. To the west of the storm, the outflow boundary was measured to be 58 mph by the Texas Department of Transportation AWOS in Hereford (Deaf Smith County). No damage was reported in association of this outflow boundary.

Donley County Howardwick 26 1959CST 2001CST 0 0 0.00K 0.00K Hail (0.88)

An intensifying thunderstorm over the southern Texas Panhandle produced nickel size hail. A storm chaser reported this hail 3 miles north of the city of Howardwick (Donley County). No other information was given with this report.

Donley County 3 E Jericho 26 2030CST 2031CST 0 0 0.00K 0.00K Hail (1.75)

A group of people traveling east on Interstate 40 encountered a decaying thunderstorm. At the US Highway 70 exit the group witnessed the thunderstorm producing golf ball size hail. No information as to whether there was damage to their vehicle or if any other damage was caused by this hail was given.

During the afternoon hours of the 26th, a dryline had progressed into the central Texas Panhandle. The surface convergence along this dryline allowed an isolated thunderstorm to initiate despite marginal low level capping over eastern Armstrong and Carson Counties. The thunderstorm began moving to the east northeast along the county lines having sufficiently intensified to allow access to moderate elevated instability in place over the Texas Panhandle. A storm chaser observed sub-severe hail north of Howardwick (Donley County). As the thunderstorm continued to move across the county it began to encounter a stronger lower level capping inversion. This stronger inversion weakened the updraft and the thunderstorm started to decay. At this point the largest hail produced from this storm was reported southeast of Lake McClellan (Gray County) by a group traveling along Interstate 40. By 9 PM CST, the remnants of this thunderstorm were no longer visible on radar.

Randall County 5 SSW Amarillo 28 1533CST 1534CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. The KVII Schoolnet site at Duke Electric (Randall County) reported a 61 mph gust as a thunderstorm was overhead. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No damage or injuries were associated with this gust.

Note: The measured wind gust of 53 knots is equivalent to 61 mph.

567 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle Potter County (AMA)Amarillo Intl A 28 1546CST 1548CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city of Amarillo (Potter and Randall County). The National Weather Service ASOS in Amarillo (Potter County) reported a 58 mph downburst as a thunderstorm moved overhead. The Thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No damage or injuries were associated with this gust.

Note: The measured wind gust of 50 knots is equivalent to 58 mph. Potter County 3 ENE Bushland 28 1552CST 1555CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts over the city of Bushland (Potter County). The KVII Schoolnet site at the Oasis RV Resort 3 miles east of Bushland (Potter County) reported a gust of 60 mph as a thunderstorm moved over head. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No damage or injuries were associated with this gust.

Note: The measured wind gust of 52 knots is equivalent to 60 mph. Randall County 5 WNW Timbercreek Canyon 28 1557CST 1558CST 0 0 0.00K 0.00K Thunderstorm Wind (60MG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. The KVII schoolnet site at Midway Alternative High School (Randall County) reported a 69 mph gust while a thunderstorm was overhead. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No damage or injuries were associated with this gust. Note: The measured wind gust of 60 knots is equivalent to 69 mph. Potter County 6 W Amarillo 28 1559CST 1600CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. The KVII Schoolnet site at the Northwest Texas Hospital reported a gust of 58 mph as a thunderstorm moved overhead. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No damage or injuries were associated with this gust.

Note: The measured wind gust of 50 knots is equivalent to 58 mph. Potter County 1 NE (AMA)Amarillo Intl A 28 1600CST 1601CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. The National Weather Service ASOS in Amarillo (Potter County) reported a 62 mph gust as a thunderstorm moved over head. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No damage or injuries were associated with this gust.

Note: The measured wind gust of 54 knots is equivalent to 62 mph. Randall County 5 SW Amarillo 28 1600CST 1602CST 0 0 10.00K 0.00K Thunderstorm Wind (56EG)

568 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. As a thunderstorm moved over the residence of an off duty National Weather Service employee in southwestern Amarillo (Randall County) tree limbs from three to seven inches in diameter were blown off. The damage was caused by a localized downburst estimated to be 65 mph. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No injuries were associated with this gust.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Randall County 3 SW Amarillo 28 1616CST 1618CST 0 0 10.00M 0.00K Thunderstorm Wind (56EG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. One such thunderstorm produced a downburst which snapped two power poles at the intersection of Washington Street and Farmers Road (Randall County). The Amarillo Emergency Manager (Potter and Randall County) relayed the report of damage and the Amarillo Police department were deployed to block off traffic in that area. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No injuries were associated with this gust.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Randall County 1 W Canyon 28 1618CST 1619CST 0 0 10.00M 0.00K Thunderstorm Wind (52EG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. One such thunderstorm produced a localized downburst which downed power poles on US Highway 60 west of the city of Canyon (Randall County). The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No injuries were associated with this gust. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Armstrong County 1 W Washburn 28 1620CST 1621CST 0 0 500.00K 0.00K Thunderstorm Wind (52EG)

A decaying thunderstorm produced a localized downburst on US Highway 287 about 5 miles east of the Interstate 40 and US Highway 287 split (Armstrong County). A tractor trailer that was traveling on US Highway 287 was hit by this downburst and was blown over. No Injuries were relayed with this report from the Armstrong County Emergency Manager.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Hansford County 1 NW Gruver 28 1627CST 1629CST 0 0 0.00K 0.00K Hail (1.00)

An old outflow boundary helped to initiate a thunderstorm near Gruver (Hansford County). This thunderstorm produced quarter size hail 2 miles north of Gruver as reported by law enforcement.

Potter County 2 WSW Amarillo 28 1628CST 1629CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. The KVII schoolnet site at Amarillo College (Potter County) reported a 58 mph wind gust as a thunderstorm was overhead. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No damage or injuries were associated with this gust.

Note: The measured wind gust of 50 knots is equivalent to 58 mph.

569 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle Potter County (AMA)Amarillo Intl A 28 1636CST 1637CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. The Amarillo (Potter County) ASOS reported a 58 mph gust while a thunderstorm was overhead. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No damage or injuries were associated with this gust.

Note: The measured wind gust of 50 knots is equivalent to 58 mph. Potter County 3 NW Amarillo 28 1644CST 1645CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. The KVII Schoolnet site at Carver Elementary (Potter County) reported a gust of 61 mph while a thunderstorm was overhead. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No damage or injuries were associated with this gust.

Note: The measured wind gust of 53 knots is equivalent to 61 mph. Potter County (AMA)Amarillo Intl A 28 1644CST 1646CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. The Amarillo ASOS (Potter County) reported a 58 mph wind gust as a thunderstorm was overhead. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No damage or injuries were associated with this gust.

Note: The measured wind gust of 50 knots is equivalent to 58 mph. Potter County (AMA)Amarillo Intl A 28 1644CST 1646CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. The Amarillo ASOS (Potter County) reported a 58 mph wind gust as a thunderstorm was overhead. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No damage or injuries were associated with this gust.

Note: The measured wind gust of 50 knots is equivalent to 58 mph. Ochiltree County 1 WSW Perryton Muni Arpt 28 1656CST 1657CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A decaying thunderstorm produced a localized downburst on the east side of the city of Perryton (Ochiltree County). A trained spotter estimated the downburst to be near 60 mph. The downburst also caused a brief drop in visibility due to dust being kicked up. No injuries or damage was associated with this report.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Potter County 1 E Amarillo 28 1657CST 1659CST 0 0 10.00M 0.00K Thunderstorm Wind (55EG)

570 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. While a thunderstorm was over the intersection of 6th Ave and Osage Road a roof was blown off a metal building due to a downburst. The Amarillo (Potter and Randall County) Emergency Manager reported this damage. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No injuries were associated with this gust.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Potter County 2 E Amarillo 28 1657CST 1659CST 0 0 1.00M 0.00K Thunderstorm Wind (54EG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. One such downburst blew down powerlines in the fairgrounds area of Amarillo (Potter County). The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No injuries were associated with this gust.

Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Randall County 5 SSW Amarillo 28 1657CST 1659CST 0 0 0.00K 0.00K Thunderstorm Wind (57MG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. The KVII Schoolnet site at Duke Electric (Randall County) reported a gust of 66 mph while a thunderstorm was overhead. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No damage or injuries were associated with this gust.

Note: The measured wind gust of 57 knots is equivalent to 66 mph.

Downed parking lot light on Soncy Road in Amarillo. Provided by Amarillo Globe News. Potter County 1 NE (AMA)Amarillo Intl A 28 1702CST 1704CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. The Amarillo ASOS (Potter County) reported a gust of 60 mph while a thunderstorm was overhead. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No damage or injuries were associated with this gust.

Note: The measured wind gust of 52 knots is equivalent to 60 mph.

571 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle Potter County 1 NE (AMA)Amarillo Intl A 28 1705CST 1707CST 0 0 0.00K 0.00K Thunderstorm Wind (57MG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. The Amarillo ASOS (Potter County) reported a 66 mph gust while a thunderstorm was overhead. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No damage or injuries were associated with this gust.

Note: The measured wind gust of 57 knots is equivalent to 66 mph. Potter County 2 W Amarillo 28 1705CST 1706CST 0 0 0.00K 0.00K Thunderstorm Wind (56MG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. The KVII Schoolnet site at St. Mary's School reported a 64 mph gust while a thunderstorm was overhead. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No damage or injuries were associated with this gust.

Note: The measured wind gust of 56 knots is equivalent to 64 mph. Potter County 4 ENE (AMA)Amarillo Intl A 28 1706CST 1707CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. The KVII Schoolnet site at Highland Park High School reported a 58 mph gust while a thunderstorm was overhead. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No damage or injuries were associated with this gust.

Note: The measured wind gust of 50 knots is equivalent to 58 mph. Potter County 5 NW Amarillo 28 1709CST 1710CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. The KVII Schoolnet site at Nustar Energy reported a 61 mpg gust while a thunderstorm was overhead. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No damage or injuries were associated with this gust.

Note: The measured wind gust of 53 knots is equivalent to 61 mph. Potter County 5 W Amarillo 28 1711CST 1712CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. The KVII schoolnet site at the Discovery Center (Potter County) reported a gust of 60 mph while a thunderstorm was overhead. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No damage or injuries were associated with this gust.

Note: The measured wind gust of 52 knots is equivalent to 60 mph. Potter County 1 NE (AMA)Amarillo Intl A 28 1713CST 1714CST 0 0 0.00K 0.00K Thunderstorm Wind (57MG)

572 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle

Thunderstorms formed along a dryline stretching east-northeastward across Randall and Potter Counties during the afternoon hours of the 28th. These thunderstorms would take a northeast track which allowed them to move over the dryline. This caused the thunderstorms to produce isolated downbursts across the city. The Amarillo ASOS (Potter County) reported a 66 mph wind gust as a thunderstorm was overhead. The thunderstorm decayed quickly after moving to the dry side of the dryline due to ingesting much drier air into the updrafts. No damage or injuries were associated with this gust.

A severe weather outbreak brought hail, damaging winds, tornadoes, and flash flooding to the Panhandles from the afternoon of the 28th into the early morning hours of the 29th. The morning upper air analysis on the 28th showed a mid-level shortwave trough rotating around the base of a longwave trough situated from Idaho to Arizona. At the surface, a dryline was situated from the northeastern Oklahoma Panhandle to the southwestern Texas Panhandle. The 6 AM CST upper air sounding from Amarillo showed a low level capping inversion with significant elevated instability. Also deep layer shear was primed for the development of discrete supercells. On the 12 PM CST sounding, instability values had increased further. By noon, the northern portion of the dryline had moved into south central Kansas before stretching back into the southwestern Texas Panhandle. By the late afternoon, across Potter and Randall Counties, the dryline had advanced into the western portions of both counties allowing showers and thunderstorms, which moved northeastward along dryline, to produce damaging wind gusts in the Amarillo (Potter and Randall County) area. These thunderstorm wind gusts blew a communication tower and billboard down at the Texas Blue Lake Pools in Amarillo (Randall County). Also a main communication tower for High Plains Radio was damaged which ended the broadcast for several of their across the Texas Panhandle radio stations. The Amarillo Police Department blocked off an area near the intersection of Osage Road and SE 27th Ave due to downed power lines and debris. As the dryline moved into the eastern portions of Potter and Randall Counties during the early evening, thunderstorms over the Amarillo area were cut off from moist inflows and decayed quickly. The extremely dry near surface air evaporated precipitation from the decaying storms causing non-thunderstorm high winds across the Amarillo area. These high winds blew the roof off the River Road ISD field house (Randall County) and downed power lines across the city. Xcel Energy reported nearly 6500 people lost power from the combination of thunderstorm and non-thunderstorm wind gusts, and 4000 people would remain without power until the 29th as power lines and poles were repaired or replaced. During the late evening the dryline began to retreat westward as the nocturnal low level jet transported moisture from the Gulf of Mexico northwestward. As the dryline retreated across Oldham and Deaf Smith Counties, a near stationary discrete supercell formed and produced two short lived tornadoes in Deaf Smith County. These tornadoes formed over grasslands, and produced little damage. As the dryline continued to retreat to the west, the supercell took a northeastward track producing hail up to the size of hen eggs across Deaf Smith and Oldham Counties and produced several funnel clouds. The storm continued to produce large hail and funnel clouds as it moved into Potter and Randall Counties. This large hail broke out skylights, broke windshields, busted out windows of portables, and damaged work vehicles at schools within the Bushland (Randall County) ISD. As the supercell approached the western portion of Amarillo (Randall and Potter County) several members of the public reported funnel clouds. Video evidence of one such funnel cloud showed the cloud lowering near to the ground, but no physical evidence of a touchdown was able to be identified by National Weather Service survey teams. What this supercell did produce across Amarillo (Potter and Randall County) was copious amounts of destructive hail up to the size of baseballs and heavy rain. The City of Amarillo reported that 225 of its work vehicles had some form of hail damage with an estimated repair cost between $2000 and $8500. The City Building Safety Director reported approximately 75 percent of homes around the city suffered hail damage of varying degrees. The Amarillo Botanical Gardens suffered massive damage to plants across the four acre property totaling in thousands of dollars of damage. The hail also damaged a greenhouse in the rear portion of the property. The accumulation of hail and heavy rain also flooded the Gardens gallery while the strong winds blew a portion of the perimeter fencing down. Gene Messer Ford and AutoNation Chevrolet-Cadillac reported between 300 and 400 vehicles damaged from the hail with Gene Messer Ford estimating the damage to be between 3 and 4 million dollars. The total estimated of repair cost across the city of Amarillo (Randall and Potter Counties) is near $400 million dollars which dwarfs the June 21, 2004 hail storm which cost the city $175 million dollars. The supercell continued traveling to the northeast entering into Carson County. Upon entering the county the supercell encountered an increasing unfavorable environment as the nocturnal inversion strengthened. However, before the dissipating the thunderstorm was able to produce quarter size hail in the city of Panhandle (Carson County). The remnants of the supercell proceeded to move to the northeast until dissipating over southern Kansas. Note: The measured wind gust of 57 knots is equivalent to 66 mph.

TXZ012 Potter 28 1715CST 1716CST 0 0 0.00K 0.00K High Wind

573 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle

Several high wind gusts were observed between the afternoon hours of the 28th and the early morning hours of the 29th. A dryline was situated across the western portions of Potter and Randall Counties with storms east of this dryline. As the dryline moved into the east during the early evening, storms over the Amarillo area were cut off from moist inflows and decayed quickly. The extremely dry near surface air behind the dryline evaporated precipitation beneath these decaying storms leading to high winds from 5:15 PM CST to 6:26 PM CST across Potter County. The accelerated downward motion cause a sustain 58 mph wind and 71 mph gust at the Amarillo ASOS (Potter County), which was the second highest non-thunderstorm wind gust for the day. A resident 9 miles east of Amarillo (Potter County) reported a completely destroyed barn roof and a second damaged bar roof around the same time the 71 mph gust was reported by the Amarillo ASOS. On the north side of Amarillo (Potter County), a member of the public reported that the roof on a building next to the Dollar Tree on Amarillo Boulevard was lifted during a high wind gust. This gust was estimated to be near 64 mph. The KVII Schoolnet site at De Zavala Middle School (Potter County) reported a 63 mph gusts at 5:57 PM CST. The Amarillo Emergency Manager reported that the high winds blew the roof off the River Road ISD field house (Randall County) and downed power lines across the city. Xcel Energy reported nearly 6500 people lost power from the combination of thunderstorm and non-thunderstorm wind gusts on the 28th, and 4000 people would remain without power until the 29th as power lines and poles were repaired or replaced. The outflow from decaying storms over Amarillo coupled with the retreating dryline to cause an isolated high wind gust in Dumas (Moore County). The Texas Department of Transportation AWOS reported a non-thunderstorm gust of 59 mph shortly before 9 PM CST. This same combination would lead to another non-thunderstorm gust in Perryton (Ochiltree County) around 2:18 AM CST. However, the decaying storm that approached the Perryton AWOS was the former supercell which brought a swath of hail up to baseball size from Deaf Smith County to Carson County. The collapse of that storm provided a much greater downward motion than what occurred in Dumas (Moore County), which is why it was the highest non-thunderstorm wind gust for the day at 78 mph. After this occurred, the nocturnal inversion strengthen sufficiently to prevent any further high wind gusts across the Texas Panhandle.

Deaf Smith County 7 W Bootleg 28 1742CST 1743CST 0 0 0.00K 0.00K Hail (2.50)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. A trained storm spotter reported baseball size hail 5 miles west of Bootleg (Deaf Smith County). The supercell continued traveling in a northeastern direction which took it out of the county shortly after 10 pm. No injuries were relayed with this report.

Deaf Smith County 9 WSW Bootleg 28 1745CST 1750CST 2.14 75 0 0 0.00K 0.00K Tornado (EF0)

A discrete supercell thunderstorm produced a brief tornado southwest of Bootleg (Deaf Smith County) during the evening hours of the 28th. Several eye witnesses reported this tornado and submitted pictures. A National Weather Service survey team located the path of this tornado and verified that the tornado was very narrow which matched the description of a rope tornado given by one eye witness. The max wind estimated with this tornado was 70 mph. The tornado remained over undeveloped grasslands and produced little damage. No injuries or fatalities were associated with this tornado.

Deaf Smith County 9 W Bootleg 28 1755CST 1756CST 0 0 0.00K 0.00K Hail (1.75)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. A trained storm spotter reported golfball size hail 6 miles west of Bootleg (Deaf Smith County). The supercell continued traveling in a northeastern direction which took it out of the county shortly after 10 pm. No injuries were relayed with this report. A severe weather outbreak brought hail, damaging winds, tornadoes, and flash flooding to the Panhandles from the afternoon of the 28th into the early morning hours of the 29th. The morning upper air analysis on the 28th showed a mid-level shortwave trough rotating around the base of a longwave trough situated from Idaho to Arizona. At the surface, a dryline was situated from the northeastern Oklahoma Panhandle to the southwestern Texas Panhandle. The 6 AM CST upper air sounding from Amarillo showed a low level capping inversion with significant elevated instability. Also deep layer shear was primed for the development of discrete supercells. On the 12 PM CST sounding, instability values had increased further. By noon, the northern portion of the dryline had moved into south central Kansas before stretching back into the southwestern Texas Panhandle.

574 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle

By the late afternoon, across Potter and Randall Counties, the dryline had advanced into the western portions of both counties allowing showers and thunderstorms, which moved northeastward along dryline, to produce damaging wind gusts in the Amarillo (Potter and Randall County) area. These thunderstorm wind gusts blew a communication tower and billboard down at the Texas Blue Lake Pools in Amarillo (Randall County). Also a main communication tower for High Plains Radio was damaged which ended the broadcast for several of their across the Texas Panhandle radio stations. The Amarillo Police Department blocked off an area near the intersection of Osage Road and SE 27th Ave due to downed power lines and debris. As the dryline moved into the eastern portions of Potter and Randall Counties during the early evening, thunderstorms over the Amarillo area were cut off from moist inflows and decayed quickly. The extremely dry near surface air evaporated precipitation from the decaying storms causing non-thunderstorm high winds across the Amarillo area. These high winds blew the roof off the River Road ISD field house (Randall County) and downed power lines across the city. Xcel Energy reported nearly 6500 people lost power from the combination of thunderstorm and non-thunderstorm wind gusts, and 4000 people would remain without power until the 29th as power lines and poles were repaired or replaced.

During the late evening the dryline began to retreat westward as the nocturnal low level jet transported moisture from the Gulf of Mexico northwestward. As the dryline retreated across Oldham and Deaf Smith Counties, a near stationary discrete supercell formed and produced two short lived tornadoes in Deaf Smith County. These tornadoes formed over grasslands, and produced little damage. As the dryline continued to retreat to the west, the supercell took a northeastward track producing hail up to the size of hen eggs across Deaf Smith and Oldham Counties and produced several funnel clouds.

The storm continued to produce large hail and funnel clouds as it moved into Potter and Randall Counties. This large hail broke out skylights, broke windshields, busted out windows of portables, and damaged work vehicles at schools within the Bushland (Randall County) ISD. As the supercell approached the western portion of Amarillo (Randall and Potter County) several members of the public reported funnel clouds. Video evidence of one such funnel cloud showed the cloud lowering near to the ground, but no physical evidence of a touchdown was able to be identified by National Weather Service survey teams.

What this supercell did produce across Amarillo (Potter and Randall County) was copious amounts of destructive hail up to the size of baseballs and heavy rain. The City of Amarillo reported that 225 of its work vehicles had some form of hail damage with an estimated repair cost between $2000 and $8500. The City Building Safety Director reported approximately 75 percent of homes around the city suffered hail damage of varying degrees. The Amarillo Botanical Gardens suffered massive damage to plants across the four acre property totaling in thousands of dollars of damage. The hail also damaged a greenhouse in the rear portion of the property. The accumulation of hail and heavy rain also flooded the Gardens gallery while the strong winds blew a portion of the perimeter fencing down. Gene Messer Ford and AutoNation Chevrolet-Cadillac reported between 300 and 400 vehicles damaged from the hail with Gene Messer Ford estimating the damage to be between 3 and 4 million dollars. The total estimated of repair cost across the city of Amarillo (Randall and Potter Counties) is near $400 million dollars which dwarfs the June 21, 2004 hail storm which cost the city $175 million dollars.

The supercell continued traveling to the northeast entering into Carson County. Upon entering the county the supercell encountered an increasing unfavorable environment as the nocturnal inversion strengthened. However, before the dissipating the thunderstorm was able to produce quarter size hail in the city of Panhandle (Carson County). The remnants of the supercell proceeded to move to the northeast until dissipating over southern Kansas.

TXZ012 Potter 28 1759CST 1801CST 0 0 0.00K 0.00K High Wind

Several high wind gusts were observed between the afternoon hours of the 28th and the early morning hours of the 29th. A dryline was situated across the western portions of Potter and Randall Counties with storms east of this dryline. As the dryline moved into the east during the early evening, storms over the Amarillo area were cut off from moist inflows and decayed quickly. The extremely dry near surface air behind the dryline evaporated precipitation beneath these decaying storms leading to high winds from 5:15 PM CST to 6:26 PM CST across Potter County. The accelerated downward motion cause a sustain 58 mph wind and 71 mph gust at the Amarillo ASOS (Potter County), which was the second highest non-thunderstorm wind gust for the day. A resident 9 miles east of Amarillo (Potter County) reported a completely destroyed barn roof and a second damaged bar roof around the same time the 71 mph gust was reported by the Amarillo ASOS. On the north side of Amarillo (Potter County), a member of the public reported that the roof on a building next to the Dollar Tree on Amarillo Boulevard was lifted during a high wind gust. This gust was estimated to be near 64 mph. The KVII Schoolnet site at De Zavala Middle School (Potter County) reported a 63 mph gusts at 5:57 PM CST. The Amarillo Emergency Manager reported that the high winds blew the roof off the River Road ISD field house (Randall County) and downed power lines across the city. Xcel Energy reported nearly 6500 people lost power from the combination of thunderstorm and non-thunderstorm wind gusts on the 28th, and 4000 people would remain without power until the 29th as power lines and poles were repaired or replaced. The outflow from decaying storms over Amarillo coupled with the retreating dryline to cause an isolated high wind gust in Dumas (Moore County). The Texas Department of Transportation AWOS reported a non-thunderstorm gust of 59 mph shortly before 9 PM CST. This same combination would lead to another non-thunderstorm gust in Perryton (Ochiltree County) around 2:18 AM CST. However, the decaying storm that approached the Perryton AWOS was the former supercell which brought a swath of hail up to baseball size from Deaf Smith County to Carson County. The collapse of that storm provided a much greater downward motion than what occurred in Dumas (Moore County), which is why it was the highest non-thunderstorm wind gust for the day at 78 mph. After this occurred, the nocturnal inversion strengthen sufficiently to prevent any further high wind gusts across the Texas Panhandle.

575 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle Deaf Smith County 2 NW Walcott 28 1900CST 1902CST 0 0 0.00K 0.00K Hail (2.00)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. An off duty National Weather Service employee reported tennis ball size hail 10 miles north of Bootleg (Deaf Smith County). The supercell continued traveling in a northeastern direction which took it out of the county shortly after 10 pm. No injuries were relayed with this report.

Deaf Smith County 7 NNE Walcott 28 1918CST 6 W Simms 1920CST 0 0 0.00K 0.00K Hail (1.25)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. A trained storm spotter reported half dollar size hail 7 miles west of Simms (Deaf Smith County). The hail accumulated up to 2 inches deep in some spots. The supercell continued traveling in a northeastern direction which took it out of the county shortly after 10 pm. No injuries were relayed with this report.

Deaf Smith County 3 NW Simms 28 1932CST 1934CST 0 0 0.00K 0.00K Hail (1.50)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. A storm chaser reported ping pong ball size hail 15 miles south of Adrian (Deaf Smith County). The supercell continued traveling in a northeastern direction which took it out of the county shortly after 10 pm. No injuries were relayed with this report. A severe weather outbreak brought hail, damaging winds, tornadoes, and flash flooding to the Panhandles from the afternoon of the 28th into the early morning hours of the 29th. The morning upper air analysis on the 28th showed a mid-level shortwave trough rotating around the base of a longwave trough situated from Idaho to Arizona. At the surface, a dryline was situated from the northeastern Oklahoma Panhandle to the southwestern Texas Panhandle. The 6 AM CST upper air sounding from Amarillo showed a low level capping inversion with significant elevated instability. Also deep layer shear was primed for the development of discrete supercells. On the 12 PM CST sounding, instability values had increased further. By noon, the northern portion of the dryline had moved into south central Kansas before stretching back into the southwestern Texas Panhandle. By the late afternoon, across Potter and Randall Counties, the dryline had advanced into the western portions of both counties allowing showers and thunderstorms, which moved northeastward along dryline, to produce damaging wind gusts in the Amarillo (Potter and Randall County) area. These thunderstorm wind gusts blew a communication tower and billboard down at the Texas Blue Lake Pools in Amarillo (Randall County). Also a main communication tower for High Plains Radio was damaged which ended the broadcast for several of their across the Texas Panhandle radio stations. The Amarillo Police Department blocked off an area near the intersection of Osage Road and SE 27th Ave due to downed power lines and debris. As the dryline moved into the eastern portions of Potter and Randall Counties during the early evening, thunderstorms over the Amarillo area were cut off from moist inflows and decayed quickly. The extremely dry near surface air evaporated precipitation from the decaying storms causing non-thunderstorm high winds across the Amarillo area. These high winds blew the roof off the River Road ISD field house (Randall County) and downed power lines across the city. Xcel Energy reported nearly 6500 people lost power from the combination of thunderstorm and non-thunderstorm wind gusts, and 4000 people would remain without power until the 29th as power lines and poles were repaired or replaced.

During the late evening the dryline began to retreat westward as the nocturnal low level jet transported moisture from the Gulf of Mexico northwestward. As the dryline retreated across Oldham and Deaf Smith Counties, a near stationary discrete supercell formed and produced two short lived tornadoes in Deaf Smith County. These tornadoes formed over grasslands, and produced little damage. As the dryline continued to retreat to the west, the supercell took a northeastward track producing hail up to the size of hen eggs across Deaf Smith and Oldham Counties and produced several funnel clouds.

The storm continued to produce large hail and funnel clouds as it moved into Potter and Randall Counties. This large hail broke out skylights, broke windshields, busted out windows of portables, and damaged work vehicles at schools within the Bushland (Randall County) ISD. As the supercell approached the western portion of Amarillo (Randall and Potter County) several members of the public reported funnel clouds. Video evidence of one such funnel cloud showed the cloud lowering near to the ground, but no physical evidence of a touchdown was able to be identified by National Weather Service survey teams.

576 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle

What this supercell did produce across Amarillo (Potter and Randall County) was copious amounts of destructive hail up to the size of baseballs and heavy rain. The City of Amarillo reported that 225 of its work vehicles had some form of hail damage with an estimated repair cost between $2000 and $8500. The City Building Safety Director reported approximately 75 percent of homes around the city suffered hail damage of varying degrees. The Amarillo Botanical Gardens suffered massive damage to plants across the four acre property totaling in thousands of dollars of damage. The hail also damaged a greenhouse in the rear portion of the property. The accumulation of hail and heavy rain also flooded the Gardens gallery while the strong winds blew a portion of the perimeter fencing down. Gene Messer Ford and AutoNation Chevrolet-Cadillac reported between 300 and 400 vehicles damaged from the hail with Gene Messer Ford estimating the damage to be between 3 and 4 million dollars. The total estimated of repair cost across the city of Amarillo (Randall and Potter Counties) is near $400 million dollars which dwarfs the June 21, 2004 hail storm which cost the city $175 million dollars.

The supercell continued traveling to the northeast entering into Carson County. Upon entering the county the supercell encountered an increasing unfavorable environment as the nocturnal inversion strengthened. However, before the dissipating the thunderstorm was able to produce quarter size hail in the city of Panhandle (Carson County). The remnants of the supercell proceeded to move to the northeast until dissipating over southern Kansas.

Deaf Smith County 4 E Simms 28 1947CST 1950CST 0 0 0.00K 0.00K Hail (2.00)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. The Deaf Smith County Emergency Manager reported tennis ball size hail 5 miles east of Simms (Deaf Smith County). The hail clogged drainage systems close to the road and caused some of the fields to flood. The supercell continued traveling in a northeastern direction which took it out of the county shortly after 10 pm. No injuries were relayed with this report.

Deaf Smith County 7 NW Walcott 28 2006CST 2011CST 2.06 150 0 0 0.00K 0.00K Tornado (EF0)

A discrete supercell thunderstorm produced a tornado over northwest Deaf Smith County during the evening hours on the 28th. An eye witness on County Road RR west of Simms (Deaf Smith County) reported seeing the thunderstorm produce a funnel cloud which touched down, widened quickly, shrunk, and then lifted off the ground. A National Weather Service survey team located the path of this brief tornado and found that the tornado traveled a little over 2 miles in the 5 minutes it was connected with the ground. The max wind speed was estimated to be 80 mph. No injuries or fatalities were associated with this tornado.

A severe weather outbreak brought hail, damaging winds, tornadoes, and flash flooding to the Panhandles from the afternoon of the 28th into the early morning hours of the 29th. The morning upper air analysis on the 28th showed a mid-level shortwave trough rotating around the base of a longwave trough situated from Idaho to Arizona. At the surface, a dryline was situated from the northeastern Oklahoma Panhandle to the southwestern Texas Panhandle. The 6 AM CST upper air sounding from Amarillo showed a low level capping inversion with significant elevated instability. Also deep layer shear was primed for the development of discrete supercells. On the 12 PM CST sounding, instability values had increased further. By noon, the northern portion of the dryline had moved into south central Kansas before stretching back into the southwestern Texas Panhandle. By the late afternoon, across Potter and Randall Counties, the dryline had advanced into the western portions of both counties allowing showers and thunderstorms, which moved northeastward along dryline, to produce damaging wind gusts in the Amarillo (Potter and Randall County) area. These thunderstorm wind gusts blew a communication tower and billboard down at the Texas Blue Lake Pools in Amarillo (Randall County). Also a main communication tower for High Plains Radio was damaged which ended the broadcast for several of their across the Texas Panhandle radio stations. The Amarillo Police Department blocked off an area near the intersection of Osage Road and SE 27th Ave due to downed power lines and debris. As the dryline moved into the eastern portions of Potter and Randall Counties during the early evening, thunderstorms over the Amarillo area were cut off from moist inflows and decayed quickly. The extremely dry near surface air evaporated precipitation from the decaying storms causing non-thunderstorm high winds across the Amarillo area. These high winds blew the roof off the River Road ISD field house (Randall County) and downed power lines across the city. Xcel Energy reported nearly 6500 people lost power from the combination of thunderstorm and non-thunderstorm wind gusts, and 4000 people would remain without power until the 29th as power lines and poles were repaired or replaced.

During the late evening the dryline began to retreat westward as the nocturnal low level jet transported moisture from the Gulf of Mexico northwestward. As the dryline retreated across Oldham and Deaf Smith Counties, a near stationary discrete supercell formed and produced two short lived tornadoes in Deaf Smith County. These tornadoes formed over grasslands, and produced little damage. As the dryline continued to retreat to the west, the supercell took a northeastward track producing hail up to the size of hen eggs across Deaf Smith and Oldham Counties and produced several funnel clouds.

The storm continued to produce large hail and funnel clouds as it moved into Potter and Randall Counties. This large hail broke out skylights, broke windshields, busted out windows of portables, and damaged work vehicles at schools within the Bushland (Randall County) ISD. As the supercell approached the western portion of Amarillo (Randall and Potter County) several members of the public reported funnel clouds. Video evidence of one such funnel cloud showed the cloud lowering near to the ground, but no physical evidence of a touchdown was able to be identified by National Weather Service survey teams.

577 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle

What this supercell did produce across Amarillo (Potter and Randall County) was copious amounts of destructive hail up to the size of baseballs and heavy rain. The City of Amarillo reported that 225 of its work vehicles had some form of hail damage with an estimated repair cost between $2000 and $8500. The City Building Safety Director reported approximately 75 percent of homes around the city suffered hail damage of varying degrees. The Amarillo Botanical Gardens suffered massive damage to plants across the four acre property totaling in thousands of dollars of damage. The hail also damaged a greenhouse in the rear portion of the property. The accumulation of hail and heavy rain also flooded the Gardens gallery while the strong winds blew a portion of the perimeter fencing down. Gene Messer Ford and AutoNation Chevrolet-Cadillac reported between 300 and 400 vehicles damaged from the hail with Gene Messer Ford estimating the damage to be between 3 and 4 million dollars. The total estimated of repair cost across the city of Amarillo (Randall and Potter Counties) is near $400 million dollars which dwarfs the June 21, 2004 hail storm which cost the city $175 million dollars.

The supercell continued traveling to the northeast entering into Carson County. Upon entering the county the supercell encountered an increasing unfavorable environment as the nocturnal inversion strengthened. However, before the dissipating the thunderstorm was able to produce quarter size hail in the city of Panhandle (Carson County). The remnants of the supercell proceeded to move to the northeast until dissipating over southern Kansas.

Picture of tornado 9 miles west of Simms (Deaf Smith County). Picture provided by Adam Ball. Oldham County 4 SSW Vega 28 2131CST 2132CST 0 0 0.00K 0.00K Hail (0.88)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. A Vega (Deaf Smith County) Police Officer reported nickle size hail 3 miles south of Vega. The supercell continued traveling in a northeastern direction which took it out of the county shortly after 10 pm. No injuries were relayed with this report.

Deaf Smith County 12 NNW Milo Center 28 2136CST 2138CST 0 0 0.00K 0.00K Hail (1.75)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. A Vega (Deaf Smith County) Police Officer reported golf ball size hail 6 miles south of Vega. The supercell continued traveling in a northeastern direction which took it out of the county shortly after 10 pm. No injuries were relayed with this report.

Oldham County 5 W Wildorado 28 2203CST 2205CST 0 0 0.00K 0.00K Hail (1.75)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. A Wildorado (Oldham County) Police Officer reported golf ball size hail near the city of Wildorado. The supercell continued traveling in a northeastern direction which took it out of the county shortly after 10 pm. No injuries were relayed with this report.

578 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle Oldham County 4 WNW Wildorado 28 2209CST 2212CST 0 0 0.00K 0.00K Hail (1.75)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. A trained storm spotter reported golf ball size hail near the town of Wildorado (Oldham County). The supercell continued traveling in a northeastern direction which took it out of the county shortly after 10 pm. No injuries were relayed with this report.

Randall County 14 N Umbarger 28 2211CST 13 W Amarillo 2217CST 0 0 10.00M 0.00K Hail (2.75)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. This supercell produced baseball size hail as it moved across the southern portion of Bushland (Randall County). The hail caused damage to structures and damaged power transformers which put off power flashes that the Bushland Emergency Manager reported. The supercell continued traveling in a northeastern direction which took it away from Bushland.

Potter County 4 WSW Amarillo 28 2235CST 2238CST 0 0 100.00K 0.00K Hail (1.75)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. The supercell entered the city limits of Amarillo during the late night hours of the 28th. This supercell thunderstorm produced copious amounts of large destructive hail across the city. An amateur radio operator at the Western Crossings shopping center reported golf ball size hail. The supercell continued traveling in a northeastern direction which took it out of the Amarillo city limits shortly before midnight on the 29th.

Potter County 6 W Amarillo 28 2238CST 2243CST 0 0 500.00K 0.00K Hail (1.75)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. The supercell entered the city limits of Amarillo during the late night hours of the 28th. This supercell thunderstorm produced copious amounts of large destructive hail across the city. A storm chaser at the intersection of Interstate 40 and Coulter Street reported golf ball size hail as the storm crossed their location. The supercell continued traveling in a northeastern direction which took it out of the Amarillo city limits shortly before midnight on the 29th.

Randall County 7 WSW Amarillo 28 2238CST 2245CST 0 0 50.00M 0.00K Hail (1.25)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. The supercell entered the city limits of Amarillo during the late night hours of the 28th. This supercell thunderstorm produced copious amounts of large destructive hail across the city. An amateur radio operator at the intersection of Soncy Road and 45th Ave reported half dollar size hail. Approximately 300 vehicles suffered hail damage at Street Toyota on the western side of this intersection and the adjacent neighborhood suffered varying degrees of roof damage. The supercell continued traveling in a northeastern direction which took it out of the Amarillo city limits shortly before midnight on the 29th.

Potter County 5 NW Amarillo 28 2239CST 2246CST 0 0 100.00K 0.00K Hail (1.75)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. The supercell entered the city limits of Amarillo during the late night hours of the 28th. This supercell thunderstorm produced copious amounts of large destructive hail across the city. The Amarillo Emergency Manager reported golf ball size hail at the intersection of Western Street and Loop 335 (Potter County). Motorist took shelter from the hail under the overpass. The supercell continued traveling in a northeastern direction which took it out of the Amarillo city limits shortly before midnight on the 29th.

579 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle Potter County 7 WSW Amarillo 28 2240CST 2251CST 0 0 200.00M 0.00K Hail (2.75)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. The supercell entered the city limits of Amarillo during the late night hours of the 28th. This supercell thunderstorm produced copious amounts of large destructive hail across the city. A trained storm spotter at the intersection of 34th Ave and Soncy Road (Randall County) reported that baseball size hail had broken out the windows of 7 Bar and Grill. Several business and residential homes near this intersection suffered broken window, roof damage, and hundreds of vehicles at Gene Messer Ford of Amarillo suffered varying degrees of hail damage. The supercell continued traveling in a northeastern direction which took it out of the Amarillo city limits shortly before midnight on the 29th.

Hail damage at Gene Messer Ford in Amarillo. Provided by Amarillo Globe News. Randall County 6 WSW Amarillo 28 2241CST 2243CST 0 0 5.00M 0.00K Thunderstorm Wind (52EG)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. The supercell entered the city limits of Amarillo during the late night hours of the 28th. As this supercell thunderstorm moved over the Windtree Apartment complex it produced a localized downburst which split a 3 foot diameter tree in two. The southward split portion of the tree feel onto southward facing apartments and broke windows and skylights of these apartments. No injuries were reported with this damage.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

580 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle

Picture of downed tree at Windtree Apartments. Picture provided by Nick Fenner. Potter County 1 WSW Amarillo 28 2245CST 2255CST 0 0 10.00M 0.00K Hail (1.25)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. The supercell entered the city limits of Amarillo during the late night hours of the 28th. This supercell thunderstorm produced copious amounts of large destructive hail across the city. A member of the public reported a mix of quarter to half dollar fell at their residence and was enough to cover the yard. The hail also caused varying degrees of roof and vehicle damage. The supercell continued traveling in a northeastern direction which took it out of the Amarillo city limits shortly before midnight on the 29th.

Potter County 1 WSW Amarillo 28 2247CST 2256CST 0 0 500.00K 0.00K Hail (1.00)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. The supercell entered the city limits of Amarillo during the late night hours of the 28th. This supercell thunderstorm produced copious amounts of large destructive hail across the city. A member of the public reported quarter size hail at their residence. This hail caused varying degrees of damage to roofs and vehicles. The supercell continued traveling in a northeastern direction which took it out of the Amarillo city limits shortly before midnight on the 29th.

Randall County 7 WSW Amarillo 28 2247CST 2256CST 0 0 10.00M 0.00K Hail (1.75)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. The supercell entered the city limits of Amarillo during the late night hours of the 28th. This supercell thunderstorm produced copious amounts of large destructive hail across the city. An off duty National Weather Service employee reported golf ball size hail at their residence. This hail caused damage to neighboring homes and vehicles. The supercell continued traveling in a northeastern direction which took it out of the Amarillo city limits shortly before midnight on the 29th.

Potter County 3 WSW Amarillo 28 2250CST 2300CST 0 0 50.00M 0.00K Hail (1.50)

581 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. The supercell entered the city limits of Amarillo during the late night hours of the 28th. This supercell thunderstorm produced copious amounts of large destructive hail across the city. A member of the public reported ping pong ball size hail near the intersection of 26th Ave and Georgia (Randall County). This hail caused damage to residential homes and business. A skylight on a residential home was broken by the hail. The supercell continued traveling in a northeastern direction which took it out of the Amarillo city limits shortly before midnight on the 29th.

Potter County Amarillo 28 2251CST 2300CST 0 0 500.00K 0.00K Hail (0.88)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. The supercell entered the city limits of Amarillo during the late night hours of the 28th. This supercell thunderstorm produced copious amounts of large destructive hail across the city. A trained spotter near the intersection of 10th Ave and Williams Street (Potter County) reported nickel size hail. This hail produces minor damage to vehicles and roofs in the area. The supercell continued traveling in a northeastern direction which took it out of the Amarillo city limits shortly before midnight on the 29th.

Potter County 4 NNW Amarillo 28 2252CST 2300CST 0 0 1.00M 0.00K Hail (1.25)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. The supercell entered the city limits of Amarillo during the late night hours of the 28th. This supercell thunderstorm produced copious amounts of large destructive hail across the city. An amateur radio operator near the intersection of Central Ave and US Highway 87 reported half dollar size hail covering the ground. Several residental homes suffered varying degrees of damage to roofs. The supercell continued traveling in a northeastern direction which took it out of the Amarillo city limits shortly before midnight on the 29th.

Potter County 3 NW (AMA)Amarillo Intl A 28 2300CST 2310CST 0 0 1.00M 0.00K Hail (1.75)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. The supercell entered the city limits of Amarillo during the late night hours of the 28th. This supercell thunderstorm produced copious amounts of large destructive hail across the city. As the supercell moved across the northeastern portion of Amarillo (Potter County), several motorist sought cover from golf ball size hail under the overpass at Fritch Highway and Loop 335. Residential homes near this intersection suffered varying degrees of damage from the hail. The supercell continued traveling in a northeastern direction which took it out of the Amarillo city limits shortly before midnight on the 29th.

Potter County 1 NE (AMA)Amarillo Intl A 28 2305CST 2314CST 0 0 150.00K 0.00K Hail (1.00)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. The supercell entered the city limits of Amarillo during the late night hours of the 28th. This supercell thunderstorm produced copious amounts of large destructive hail across the city. The supercell brought a mix of pea to quarter size hail to the National Weather Service office (Potter County). The hail nearly covered the ground and caused minor damage to vehicles of employees. The supercell continued traveling in a northeastern direction which took it out of the Amarillo city limits shortly before midnight on the 29th.

A severe weather outbreak brought hail, damaging winds, tornadoes, and flash flooding to the Panhandles from the afternoon of the 28th into the early morning hours of the 29th. The morning upper air analysis on the 28th showed a mid-level shortwave trough rotating around the base of a longwave trough situated from Idaho to Arizona. At the surface, a dryline was situated from the northeastern Oklahoma Panhandle to the southwestern Texas Panhandle. The 6 AM CST upper air sounding from Amarillo showed a low level capping inversion with significant elevated instability. Also deep layer shear was primed for the development of discrete supercells. On the 12 PM CST sounding, instability values had increased further. By noon, the northern portion of the dryline had moved into south central Kansas before stretching back into the southwestern Texas Panhandle.

582 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle

By the late afternoon, across Potter and Randall Counties, the dryline had advanced into the western portions of both counties allowing showers and thunderstorms, which moved northeastward along dryline, to produce damaging wind gusts in the Amarillo (Potter and Randall County) area. These thunderstorm wind gusts blew a communication tower and billboard down at the Texas Blue Lake Pools in Amarillo (Randall County). Also a main communication tower for High Plains Radio was damaged which ended the broadcast for several of their across the Texas Panhandle radio stations. The Amarillo Police Department blocked off an area near the intersection of Osage Road and SE 27th Ave due to downed power lines and debris. As the dryline moved into the eastern portions of Potter and Randall Counties during the early evening, thunderstorms over the Amarillo area were cut off from moist inflows and decayed quickly. The extremely dry near surface air evaporated precipitation from the decaying storms causing non-thunderstorm high winds across the Amarillo area. These high winds blew the roof off the River Road ISD field house (Randall County) and downed power lines across the city. Xcel Energy reported nearly 6500 people lost power from the combination of thunderstorm and non-thunderstorm wind gusts, and 4000 people would remain without power until the 29th as power lines and poles were repaired or replaced.

During the late evening the dryline began to retreat westward as the nocturnal low level jet transported moisture from the Gulf of Mexico northwestward. As the dryline retreated across Oldham and Deaf Smith Counties, a near stationary discrete supercell formed and produced two short lived tornadoes in Deaf Smith County. These tornadoes formed over grasslands, and produced little damage. As the dryline continued to retreat to the west, the supercell took a northeastward track producing hail up to the size of hen eggs across Deaf Smith and Oldham Counties and produced several funnel clouds.

The storm continued to produce large hail and funnel clouds as it moved into Potter and Randall Counties. This large hail broke out skylights, broke windshields, busted out windows of portables, and damaged work vehicles at schools within the Bushland (Randall County) ISD. As the supercell approached the western portion of Amarillo (Randall and Potter County) several members of the public reported funnel clouds. Video evidence of one such funnel cloud showed the cloud lowering near to the ground, but no physical evidence of a touchdown was able to be identified by National Weather Service survey teams.

What this supercell did produce across Amarillo (Potter and Randall County) was copious amounts of destructive hail up to the size of baseballs and heavy rain. The City of Amarillo reported that 225 of its work vehicles had some form of hail damage with an estimated repair cost between $2000 and $8500. The City Building Safety Director reported approximately 75 percent of homes around the city suffered hail damage of varying degrees. The Amarillo Botanical Gardens suffered massive damage to plants across the four acre property totaling in thousands of dollars of damage. The hail also damaged a greenhouse in the rear portion of the property. The accumulation of hail and heavy rain also flooded the Gardens gallery while the strong winds blew a portion of the perimeter fencing down. Gene Messer Ford and AutoNation Chevrolet-Cadillac reported between 300 and 400 vehicles damaged from the hail with Gene Messer Ford estimating the damage to be between 3 and 4 million dollars. The total estimated of repair cost across the city of Amarillo (Randall and Potter Counties) is near $400 million dollars which dwarfs the June 21, 2004 hail storm which cost the city $175 million dollars.

The supercell continued traveling to the northeast entering into Carson County. Upon entering the county the supercell encountered an increasing unfavorable environment as the nocturnal inversion strengthened. However, before the dissipating the thunderstorm was able to produce quarter size hail in the city of Panhandle (Carson County). The remnants of the supercell proceeded to move to the northeast until dissipating over southern Kansas.

Potter County Amarillo 28 2312CST 2350CST 0 0 0.00K 0.00K Flash Flood

After a supercell produced copious amounts of large hail and heavy rain, a trained spotter near the intersection of Interstate 40 and Ross Road reported two cars stranded under the underpass. No injuries or swift water rescues were associated with this report.

Potter County 3 WSW Amarillo 28 2313CST 2350CST 0 0 0.00K 0.00K Flash Flood

After a supercell produced copious amounts of large hail and heavy rain the 2800 block of Duniven Street in Amarillo (Potter County) was affected by a localized flash flood. A vehicle became stranded in the flood waters and the Amarillo Police Department performed a high water rescue. No injuries were reported with this rescue and the flood waters receded quickly.

The combination of significant quantities of hail and heavy rain caused localized flash flooding across the city after the storm ended. The Amarillo Police Department reported 6 high water rescues associated with this flooding. The Amarillo ASOS (Potter County) reported 1.23 inches of rain for the day which fell short of the all-time record for 24 hour rainfall of 1.99 inches occurred in 1985. No injuries were reported with these high water rescues.

Potter County 1 WSW Amarillo 28 2314CST 2321CST 0 0 100.00M 0.00K Hail (1.75)

583 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. The supercell entered the city limits of Amarillo during the late night hours of the 28th. This supercell thunderstorm produced copious amounts of large destructive hail across the city. A trained storm spotter in downtown Amarillo (Potter County) reported golf ball size hail covering the group as the supercell moved through the area. This hail caused varying degrees of damage to residential homes businesses, and vehicles in the area. The supercell continued traveling in a northeastern direction which took it out of the Amarillo city limits shortly before midnight on the 29th.

Potter County 6 W Amarillo 28 2315CST 2324CST 0 0 50.00M 0.00K Hail (1.00)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. The supercell entered the city limits of Amarillo during the late night hours of the 28th. This supercell thunderstorm produced copious amounts of large destructive hail across the city. A member of the public at Northwest Texas Hospital (Potter County) reported quarter size hail on Coulter Street in front of the hospital. The hail had accumulated to a foot deep on the road. This hail caused varying degrees to vehicles and roofs in the area. The supercell continued traveling in a northeastern direction which took it out of the Amarillo city limits shortly before midnight on the 29th.

Potter County 1 NE (AMA)Amarillo Intl A 28 2330CST 2339CST 0 0 1.00M 0.00K Hail (1.25)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. The supercell entered the city limits of Amarillo during the late night hours of the 28th. This supercell thunderstorm produced copious amounts of large destructive hail across the city. The supercell produced a mixture of pea to half dollar size hail at the National Weather Service office. This hail caused varying degrees of damage to vehicles and structures in the area. The supercell continued traveling in a northeastern direction which took it out of the Amarillo city limits shortly before midnight on the 29th.

A severe weather outbreak brought hail, damaging winds, tornadoes, and flash flooding to the Panhandles from the afternoon of the 28th into the early morning hours of the 29th. The morning upper air analysis on the 28th showed a mid-level shortwave trough rotating around the base of a longwave trough situated from Idaho to Arizona. At the surface, a dryline was situated from the northeastern Oklahoma Panhandle to the southwestern Texas Panhandle. The 6 AM CST upper air sounding from Amarillo showed a low level capping inversion with significant elevated instability. Also deep layer shear was primed for the development of discrete supercells. On the 12 PM CST sounding, instability values had increased further. By noon, the northern portion of the dryline had moved into south central Kansas before stretching back into the southwestern Texas Panhandle. By the late afternoon, across Potter and Randall Counties, the dryline had advanced into the western portions of both counties allowing showers and thunderstorms, which moved northeastward along dryline, to produce damaging wind gusts in the Amarillo (Potter and Randall County) area. These thunderstorm wind gusts blew a communication tower and billboard down at the Texas Blue Lake Pools in Amarillo (Randall County). Also a main communication tower for High Plains Radio was damaged which ended the broadcast for several of their across the Texas Panhandle radio stations. The Amarillo Police Department blocked off an area near the intersection of Osage Road and SE 27th Ave due to downed power lines and debris. As the dryline moved into the eastern portions of Potter and Randall Counties during the early evening, thunderstorms over the Amarillo area were cut off from moist inflows and decayed quickly. The extremely dry near surface air evaporated precipitation from the decaying storms causing non-thunderstorm high winds across the Amarillo area. These high winds blew the roof off the River Road ISD field house (Randall County) and downed power lines across the city. Xcel Energy reported nearly 6500 people lost power from the combination of thunderstorm and non-thunderstorm wind gusts, and 4000 people would remain without power until the 29th as power lines and poles were repaired or replaced.

During the late evening the dryline began to retreat westward as the nocturnal low level jet transported moisture from the Gulf of Mexico northwestward. As the dryline retreated across Oldham and Deaf Smith Counties, a near stationary discrete supercell formed and produced two short lived tornadoes in Deaf Smith County. These tornadoes formed over grasslands, and produced little damage. As the dryline continued to retreat to the west, the supercell took a northeastward track producing hail up to the size of hen eggs across Deaf Smith and Oldham Counties and produced several funnel clouds.

The storm continued to produce large hail and funnel clouds as it moved into Potter and Randall Counties. This large hail broke out skylights, broke windshields, busted out windows of portables, and damaged work vehicles at schools within the Bushland (Randall County) ISD. As the supercell approached the western portion of Amarillo (Randall and Potter County) several members of the public reported funnel clouds. Video evidence of one such funnel cloud showed the cloud lowering near to the ground, but no physical evidence of a touchdown was able to be identified by National Weather Service survey teams.

584 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle

What this supercell did produce across Amarillo (Potter and Randall County) was copious amounts of destructive hail up to the size of baseballs and heavy rain. The City of Amarillo reported that 225 of its work vehicles had some form of hail damage with an estimated repair cost between $2000 and $8500. The City Building Safety Director reported approximately 75 percent of homes around the city suffered hail damage of varying degrees. The Amarillo Botanical Gardens suffered massive damage to plants across the four acre property totaling in thousands of dollars of damage. The hail also damaged a greenhouse in the rear portion of the property. The accumulation of hail and heavy rain also flooded the Gardens gallery while the strong winds blew a portion of the perimeter fencing down. Gene Messer Ford and AutoNation Chevrolet-Cadillac reported between 300 and 400 vehicles damaged from the hail with Gene Messer Ford estimating the damage to be between 3 and 4 million dollars. The total estimated of repair cost across the city of Amarillo (Randall and Potter Counties) is near $400 million dollars which dwarfs the June 21, 2004 hail storm which cost the city $175 million dollars.

The supercell continued traveling to the northeast entering into Carson County. Upon entering the county the supercell encountered an increasing unfavorable environment as the nocturnal inversion strengthened. However, before the dissipating the thunderstorm was able to produce quarter size hail in the city of Panhandle (Carson County). The remnants of the supercell proceeded to move to the northeast until dissipating over southern Kansas.

Half dollar hail that fell at the National Weather Service office in Amarillo (Potter County). Picture taken by staff member. Potter County 3 NE Amarillo 28 2351CST 3 WNW (AMA)Amarillo Intl A 29 0010CST 0 0 0.00K 0.00K Flash Flood

A supercell thunderstorm brought copious amounts of large hail and heavy rain to the city of Amarillo (Potter County). The large hail clogged drainage systems which caused localized flash flooding near the intersection of North Eastern Street and northeast 24th Ave. A motorist became stranded in the flood waters and the Amarillo Police Department were called out to perform a high water rescue. The motorist was uninjured and the flood waters quickly receded once the thunderstorm had moved out of the area. The combination of significant quantities of hail and heavy rain caused localized flash flooding across the city after the storm ended. The Amarillo Police Department reported 6 high water rescues associated with this flooding. The Amarillo ASOS (Potter County) reported 1.23 inches of rain for the day which fell short of the all-time record for 24 hour rainfall of 1.99 inches occurred in 1985. No injuries were reported with these high water rescues.

Carson County 1 SW Panhandle 28 2353CST 2355CST 0 0 0.00K 0.00K Hail (1.00)

A supercell thunderstorm that developed along a retreating dryline in Deaf Smith and Oldham Counties tracked to the northeast across the southern Texas Panhandle. The supercell neared the city of Panhandle (Carson County) where it produced quarter size hail. Law Enforcement officials in Panhandle reported the hail. The supercell quickly moved to the northeast and weakened slightly. No damage or injuries were associated with this report.

585 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle

A severe weather outbreak brought hail, damaging winds, tornadoes, and flash flooding to the Panhandles from the afternoon of the 28th into the early morning hours of the 29th. The morning upper air analysis on the 28th showed a mid-level shortwave trough rotating around the base of a longwave trough situated from Idaho to Arizona. At the surface, a dryline was situated from the northeastern Oklahoma Panhandle to the southwestern Texas Panhandle. The 6 AM CST upper air sounding from Amarillo showed a low level capping inversion with significant elevated instability. Also deep layer shear was primed for the development of discrete supercells. On the 12 PM CST sounding, instability values had increased further. By noon, the northern portion of the dryline had moved into south central Kansas before stretching back into the southwestern Texas Panhandle. By the late afternoon, across Potter and Randall Counties, the dryline had advanced into the western portions of both counties allowing showers and thunderstorms, which moved northeastward along dryline, to produce damaging wind gusts in the Amarillo (Potter and Randall County) area. These thunderstorm wind gusts blew a communication tower and billboard down at the Texas Blue Lake Pools in Amarillo (Randall County). Also a main communication tower for High Plains Radio was damaged which ended the broadcast for several of their across the Texas Panhandle radio stations. The Amarillo Police Department blocked off an area near the intersection of Osage Road and SE 27th Ave due to downed power lines and debris. As the dryline moved into the eastern portions of Potter and Randall Counties during the early evening, thunderstorms over the Amarillo area were cut off from moist inflows and decayed quickly. The extremely dry near surface air evaporated precipitation from the decaying storms causing non-thunderstorm high winds across the Amarillo area. These high winds blew the roof off the River Road ISD field house (Randall County) and downed power lines across the city. Xcel Energy reported nearly 6500 people lost power from the combination of thunderstorm and non-thunderstorm wind gusts, and 4000 people would remain without power until the 29th as power lines and poles were repaired or replaced.

During the late evening the dryline began to retreat westward as the nocturnal low level jet transported moisture from the Gulf of Mexico northwestward. As the dryline retreated across Oldham and Deaf Smith Counties, a near stationary discrete supercell formed and produced two short lived tornadoes in Deaf Smith County. These tornadoes formed over grasslands, and produced little damage. As the dryline continued to retreat to the west, the supercell took a northeastward track producing hail up to the size of hen eggs across Deaf Smith and Oldham Counties and produced several funnel clouds.

The storm continued to produce large hail and funnel clouds as it moved into Potter and Randall Counties. This large hail broke out skylights, broke windshields, busted out windows of portables, and damaged work vehicles at schools within the Bushland (Randall County) ISD. As the supercell approached the western portion of Amarillo (Randall and Potter County) several members of the public reported funnel clouds. Video evidence of one such funnel cloud showed the cloud lowering near to the ground, but no physical evidence of a touchdown was able to be identified by National Weather Service survey teams.

What this supercell did produce across Amarillo (Potter and Randall County) was copious amounts of destructive hail up to the size of baseballs and heavy rain. The City of Amarillo reported that 225 of its work vehicles had some form of hail damage with an estimated repair cost between $2000 and $8500. The City Building Safety Director reported approximately 75 percent of homes around the city suffered hail damage of varying degrees. The Amarillo Botanical Gardens suffered massive damage to plants across the four acre property totaling in thousands of dollars of damage. The hail also damaged a greenhouse in the rear portion of the property. The accumulation of hail and heavy rain also flooded the Gardens gallery while the strong winds blew a portion of the perimeter fencing down. Gene Messer Ford and AutoNation Chevrolet-Cadillac reported between 300 and 400 vehicles damaged from the hail with Gene Messer Ford estimating the damage to be between 3 and 4 million dollars. The total estimated of repair cost across the city of Amarillo (Randall and Potter Counties) is near $400 million dollars which dwarfs the June 21, 2004 hail storm which cost the city $175 million dollars.

The supercell continued traveling to the northeast entering into Carson County. Upon entering the county the supercell encountered an increasing unfavorable environment as the nocturnal inversion strengthened. However, before the dissipating the thunderstorm was able to produce quarter size hail in the city of Panhandle (Carson County). The remnants of the supercell proceeded to move to the northeast until dissipating over southern Kansas.

Hutchinson County 2 WSW Borger 29 1222CST 1225CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A weakening thunderstorm moved over the city of Borger (Hutchinson County) during the early afternoon hours of the 29th. The outflow produced by this thunderstorm was estimated to be 60 mph and blew tree limbs of four to five inches thick down.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Armstrong County 1 E Goodnight 29 1326CST 1330CST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm developed over Armstrong County during the early afternoon hours of the 29th. A trained storm spotter a half mile east of Goodnight (Armstrong County) observed this thunderstorm produce several pea size hail stones with a few quarter size hail stones as it moved to the northeast.

586 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle Armstrong County 1 WSW Goodnight 29 1330CST 1334CST 0 0 0.00K 0.00K Hail (0.88)

A thunderstorm with a history of producing pea to quarter size hail in Goodnight (Armstrong County) moved to the northeast. The Armstrong County Commissioner and Chief Deputy reported seeing hail shafts out of the base of this thunderstorm. As the storm passed over their location, 2 miles north of Goodnight, they observed nickel size hail. The Armstrong County Emergency Manager relayed this report to the National Weather Service Office in Amarillo (Potter County).

Gray County 14 W Alanreed 29 1403CST 1410CST 0 0 0.00K 0.00K Hail (2.00)

A rapidly intensifying supercell moved to the northeast across southern Grey County. A storm chaser traveling north along US Highway 70 intercepted the storm south of the Farm to Market road 2447 and US Highway 70 intersection. The storm chaser reported that the supercell produced hen egg size hail on US Highway 70. The supercell continued a northeasterly track and crossed Farm to Market road 2477 before merging with a developing squall line.

Donley County 2 SE Howardwick 29 1435CST 1438CST 0 0 0.00K 0.00K Hail (0.88)

A trained storm spotter reported nickle size hail in Howardwick (Donley County). The hail was produced from a developing squall line that stretched from Grey County to Hall County and moving to the east-northeast.

Donley County 1 NNW Clarendon 29 1443CST 1446CST 0 0 0.00K 0.00K Hail (0.75)

A weakening embedded core within a squall line moving across Donely County produced hail 1 mile to the northeast of Clarendon. A trained storm spotter observed penny size hail on Jefferson Street near the Jefferson Street and Rural Road Q junction. No reports of damage accompanied this report.

Gray County Lefors 29 1455CST 1500CST 0 0 0.00K 0.00K Hail (1.75)

The northern most embedded thunderstorm within a squall line moving across the southeastern Texas Panhandle passed over the town of Lefors (Gray County). This same embedded thunderstorm had a history of producing hen egg size hail stones west- northwest of Lake McClellan (Gray County). While over Lefors, the thunderstorm produced hail from dime size to golf ball size hail. The Gray County Emergency Manager reported that accumulated hail had clogged drainage systems which resulted in localized flooding. No reports of damage or injuries accompanied this report.

Gray County 14 W Alanreed 29 1455CST 1456CST 0 0 15.00K 0.00K Thunderstorm Wind (56EG)

An intensifying thunderstorm produced a 65 mph gusts over the Interstate 40 and State Highway 70 intersection. The Gray County Emergency Manager reported that the gust produced a cross wind on State Road 70 which tipped 2 semi-tractor trailers. No reports of injuries accompanied this report. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Roberts County 6 SSE Miami 29 1518CST 6 S Lora 1520CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A squall line moved across Roberts County during the afternoon hours of the 29th. A National Weather Service employee ten miles to the northwest of Mobeetie estimated a 60 mph gust as the storm pass over their location. The storm also produced pea size hail. No damage reports accompanied this report.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

587 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle Hemphill County 2 W Gageby 29 1533CST 1537CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A squall line moved across Hemphill County during the afternoon hours of the 29th. A National Weather Service employee estimated a 65 mph gust from a thunderstorm ten miles northeast of Mobeetie (Hemphill Countuy).

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Collingsworth County 3 WSW Dozier 29 1536CST 1539CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A Collingsworth County Sheriff officer 2 miles west of Dozier (Collingsworth County) reported a 60 mph gust from a squall line as it moved east across the county. No reports of damage accompanied this report.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Collingsworth County 8 SW Wellington 29 1630CST 1635CST 0 0 0.00K 0.00K Hail (1.00)

An intensifying thunderstorm moved across the eastern portion of Collingsworth County during the late afternoon hours. As the thunderstorm approached Wellington (Collingsworth County) from the southwest it passed over a residence 6 mile southwest of Wellington and produced quarter size hail. No property damage accompanied this report.

Hemphill County 4 E Canadian 29 1631CST 5 SSW Glazier 1634CST 0 0 0.00K 0.00K Thunderstorm Wind (55MG)

The West Texas Mesonet site 6 miles east of Canadian measured a 63 mph gust as a squall line moved toward Canadian.

Note: The measured wind gust of 55 knots is equivalent to 63 mph. Collingsworth County 1 SW Wellington 29 1645CST 1650CST 0 0 0.00K 0.00K Hail (1.25)

A thunderstorm moved over the city of Wellington (Collingsworth County) shortly before 5 pm on the 29th. While over the city it produced half dollar size hail at a residence 1 mile southeast of Wellington.

Collingsworth County 2 S Wellington 29 1654CST 1657CST 0 0 0.00K 0.00K Hail (1.50)

A thunderstorm moved over the city of Wellington (Collingsworth County) shortly before 5 pm on the 29th. A trained storm spotter 2 miles south of Wellington near the intersection of Rural Road 180 and US Highway 83 reported ping pong size hail.

Collingsworth County Wellington 29 1654CST 1658CST 0 0 0.00K 0.00K Hail (1.75)

A thunderstorm moved over the city of Wellington (Collingsworth County) shortly before 5 pm on the 29th. The Collingsworth County Sheriff's Office reported that while over the city the thunderstorm produced golf ball size size hail on 15th street.

Collingsworth County 1 SSE Wellington 29 1655CST 1659CST 0 0 0.00K 0.00K Hail (1.75)

A thunderstorm moved over the city of Wellington (Collingsworth County) shortly before 5 pm on the 29th. The National Weather Service COOP Observer 1 mile south of Wellington reported golf ball size hail as the storm passed over their residence.

588 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle Collingsworth County 1 E Wellington 29 1655CST 1657CST 0 0 0.00K 0.00K Hail (2.00)

A thunderstorm moved over the city of Wellington (Collingsworth County) shortly before 5 PM CST on the 29th. A storm chaser on 15th street near the Marian Airpark reported hen egg size hail as the storm passed over their location. No reports of damage accompanied this hail report.

Collingsworth County 1 SSW Wellington 29 1711CST 1715CST 0 0 0.00K 0.00K Hail (1.25)

A flanking thunderstorm moved over the city of Wellington (Collingsworth County) shortly after 5 pm after the city already seeing a previous thunderstorm produce hail up to the size of hen eggs. This thunderstorm produced half dollar size hail as it passed over a residence 1 mile south-southwest of Wellington.

Collingsworth County 1 NW Wellington 29 1712CST 1714CST 0 0 0.00K 0.00K Hail (1.25)

A flanking thunderstorm moved over the city of Wellington (Collingsworth County) shortly after 5 pm after the city already seeing a previous thunderstorm produce hail up to the size of hen eggs. This thunderstorm produced half dollar size hail as it passed over a residence 1 mile northwest of Wellington.

Collingsworth County 1 NW Wellington 29 1717CST 1720CST 0 0 0.00K 0.00K Hail (1.00)

A flanking thunderstorm moved over the city of Wellington (Collingsworth County) shortly after 5 pm after the city already seeing a previous thunderstorm produce hail up to the size of hen eggs. A member of the Wellington fire and rescue reported quarter size hail 1 mile west-northwest of Wellington.

May 29th brought a widespread severe weather outbreak to the eastern Texas Panhandle. Morning upper air analysis on the 29th showed a mid-level trough centered from Idaho to New Mexico with a low level closed low over Colorado and the western Oklahoma Panhandle. The lift provided by both of these large scale forcing mechanisms would easily overcome the capping inversion in place across the eastern Texas Panhandle by the early afternoon. At the surface, a dryline was positioned along the Eastern Plains of New Mexico during the morning hours before advancing eastward into the Texas Panhandle. By noon, this dryline had advanced to the central Texas Panhandle before stalling and provided a focusing point for convective initiation. Thunderstorms developed in an area of moderate elevated instability across the eastern Texas Panhandle which promoted rapid vertical growth. In the same area, vertical wind shear was ideal for the development of supercells. Along the dryline, discrete supercell thunderstorms developed shortly after the noon hour. These supercells produced 60+ mph gusts and hail up to the size of hen eggs. As the afternoon progresses discrete supercells progressed to the east and merged into a squall line. Several more reports of 60+ mph gusts and large hail were received by the National Weather Service Office in Amarillo (Potter County) as this squall line progressed out of the Texas Panhandle and into western Oklahoma shortly after 5 pm CST.

TEXAS, Northeast Harrison County 4 WSW Jonesville 16 1320CST 1324CST 1.43 500 0 1 100.00K 0.00K Tornado (EF1)

This tornado began 5 miles west of Waskom and just south of I-20. The tornado caused damage to several metal buildings at Five Star Builders. The tornado then tracked east uprooting and snapping trees along its path before lifting near CR-1105. There was one injury reported with this tornado.

Harrison County 1 SE Waskom 16 1334CST 1 WSW Lorraine 1336CST 0.42 200 0 0 50.00K 0.00K Tornado (EF1)

This tornado touched down just south of I-20 on the southern end of Waskom just west of Magnolia Road. The tornado caused minor damage to metal buildings and equipment at Red Diamond Oilfield Services. The tornado then tracked south southeast uprooting and snapping trees along its path and causing damage to a few residential homes. The tornado lifted about 0.5 miles south of I-20 and 0.25 miles east of Magnolia Road.

589 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Northeast

An upper level low pressure system was moving slowly through Eastern Oklahoma into Western Arkansas during the afternoon hours of May 16th. A lone supercell thunderstorm across North Central Texas developed during the late morning hours of May 16th. This storm developed in a strongly sheared environment which allowed the storm to sustain itself. The storm moved south and east towards a strong instability axis which was oriented across Northeast Texas into Northwest Louisiana. With strong heating, strong instability developed and the supercell thunderstorm intensified as it moved south and east. The storm produced several tornado tracks, some of which occurred in Harrison County Texas and other into Southwest Caddo Parish and Northern Desoto Parish. The storm was a prolific hail and wind producer as well with wind gusts near 100 mph south of Shreveport, Louisiana with large fields of hail which turned numerous acres of land completely white.

Bowie County 1 N New Boston 21 1317CST 0 0 0.00K 0.00K Funnel Cloud

Bowie County 4 E Old Boston 21 1331CST 0 0 15.00K 0.00K Thunderstorm Wind (55EG)

A large oak tree was split in half and downed on a carport roof and a pickup truck. There were no reports of injuries.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Red River County 1 WSW Fulbright 21 1451CST 0 0 0.00K 0.00K Hail (0.75)

Titus County 2 WSW Wilkerson 21 1527CST 0 0 0.00K 0.00K Hail (1.00)

Camp County 4 WSW Harvard 21 1545CST 0 0 20.00K 0.00K Thunderstorm Wind (55EG)

A tree was downed on a home northwest of Pittsburg, Texas. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Camp County Pittsburg 21 1555CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Power lines downed and numerous trees downed along Hwy. 11 near Pittsburg, Texas.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Wood County 3 NW Oak Grove 21 1555CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)

The wind gust was measured on Hwy. 154 east of Quitman, Texas.

Note: The measured wind gust of 54 knots is equivalent to 62 mph. Bowie County 1 N De Kalb 21 1605CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

A tree was downed on Martin Luther King Drive in Dekalb, Texas.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Wood County 1 W Mineola 21 1605CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

A large tree was downed onto Hwy. 69 in Mineola, Texas. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Bowie County 1 N De Kalb 21 1607CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Numerous trees were downed throughout the western half of the county.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

590 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Northeast Bowie County 1 N New Boston 21 1618CST 0 0 20.00K 0.00K Thunderstorm Wind (56EG)

A tree was downed on a house on FM 1849 near New Boston, Texas. There were no reports of injuries.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Gregg County 2 NE Greggton 21 1630CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)

Powerlines were downed on Eastman Road and Hawkins Parkway. Note: The estimated wind gust of 53 knots is equivalent to 61 mph. Gregg County 2 NE Greggton 21 1633CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)

A large tree was downed on Dundee Road in Longview, Texas. Note: The estimated wind gust of 53 knots is equivalent to 61 mph. Harrison County 6 E Walkers Mill 21 1645CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Multiple trees were downed on Hwy. 154 near Nesbitt, Texas. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Gregg County 2 NE Greggton 21 1700CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Multiple trees were downed throughout the county. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Smith County 1 S Tyler 21 1710CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees were downed throughout the entire county. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Harrison County 1 W Hallsville 21 1730CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees were downed in Hallsville, Texas. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Cherokee County 2 NNE Jacksonville 21 1745CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Powerlines were downed along Hwy. 79 in Jacksonville, Texas.

Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Smith County 1 S Troup 21 1759CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

The roof was peeled back on a barn in Troup, Texas. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Panola County 1 E Carthage 21 1800CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees were downed in Carthage, Texas. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Cherokee County 2 NNE Jacksonville 21 1820CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees were downed in Jacksonville, Texas. Note: The estimated wind gust of 54 knots is equivalent to 62 mph.

591 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Northeast Panola County 1 NW Deadwood 21 1830CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees were downed in Deadwood, Texas. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Rusk County 1 N Henderson 21 1845CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)

Trees were downed in Henderson, Texas and other parts of the county.

Note: The estimated wind gust of 53 knots is equivalent to 61 mph. Nacogdoches County 2 SE Nacogdoches Regl Arp 21 1855CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)

Trees were downed on Hwy. 59 south southwest of Nacogdoches, Texas.

Note: The estimated wind gust of 53 knots is equivalent to 61 mph. Smith County 1 S Tyler 21 1855CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

A large tree was downed on Broadway in Tyler, Texas. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Cherokee County Alto 21 1907CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees were downed in Alto, Texas. A strong upper level trough across the southern Great Basin ejected out into the Southern Plains during the day on May 21st. Strong convection developed during peak heating across the region and this convection was aided by moderate to strong instability, excessive deep layer shear and mid level lapse rates. Add a frontal boundary to the mix and severe thunderstorms became widespread, some of which produced large hail and damaging thunderstorm wind gusts. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. TEXAS, South

TXZ248>257 Brooks - Coastal Cameron - Coastal Willacy - Hidalgo - Inland Cameron - Inland Willacy - Jim Hogg - Kenedy - Starr - Zapata 01 0000CST 13 2359CST 0 0 0.00K Drought

Little to no rain fell across the Rio Grande Valley and Deep South Texas during the first ten days of May. Widespread rains from late on the 10th through early on the 12th, with scattered rains through the 13th, would improve conditions by the May 14th Drought Monitor update. The general lack of rainfall allowed for no improvement in drought conditions until then. However, the rainfall in late April prevented drought conditions from deteriorating across the region. Extreme (D3) to Exceptional (D4) drought conditions continued to blanket the area. Some areas, particularly extreme southeastern Starr through western Hidalgo County, and much of the Kenedy County King Ranch area, missed the significant rainfall and remained in Exceptional Drought through the entire month.

Cameron County 5 WSW Harlingen 11 0330CST 0500CST 0 0 0.00K 0.00K Heavy Rain

Between 2.3 and 2.77 inches of rain fell in less than two hours on the west side of Harlingen, leaving ponded water in streets and fields and some nuisance urban flooding behind. The event, which occurred very early on a Saturday morning, had little impact with few people out.

Willacy County 2 SSW Raymondville 11 0330CST 0500CST 0 0 0.00K 0.00K Heavy Rain

Around 2.5 inches of rain fell in less than two hours just southwest of Raymondville, leaving ponded water in streets and fields and some nuisance urban flooding behind. The event, which occurred very early on a Saturday morning, had little impact with few people out.

592 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South

An upper level disturbance acted on unstable air across the Lower Rio Grande Valley, and resulted in redevelopment of a cluster of thunderstorms which earlier had dropped more than 1.5 inches of rain across the Rio Grande Plains. Between approximately 4 and 6 AM on May 11th, nearly 2.5 inches of rain fell near Raymondville, and nearly 3 inches fell on the west side of Harlingen.

TXZ248-252-254> Coastal Cameron - Coastal Willacy - Inland Cameron - Inland Willacy - Jim Hogg - Starr - Zapata 257 14 0000CST 27 2359CST 0 0 0.00K Drought

The combination of abundant low level moisture and a series of upper level disturbances moving across northern Mexico and Deep South Texas allowed for beneficial rains across the region. Areas of showers and thunderstorms affected the area from late on the 10th through the 15th. Rain activity ended as the upper level low pressure system tracked northeast, allowing drier air to filter into south Texas. Much of the area received rainfall amounts of 1 to 2 inches during the period, with heavier amounts of 2 to 4 inches occurring over portions of Zapata, Jim Hogg, coastal Kenedy and coastal Willacy counties. This rain provided much needed relief to ongoing Extreme to Exceptional drought conditions. Despite the rains, drought conditions improved only slightly. Drought conditions across Zapata and Jim Hogg counties were lessened one category from extreme to severe. Extreme Drought conditions extended across much of Starr, Brooks, Willacy, southeastern Hidalgo and Cameron counties. Exceptional drought continues across much of Hidalgo and Kenedy counties.

28 0000CST 31 2359CST 0 0 0.00K Drought

TXZ249-252 Brooks - Jim Hogg - Starr 28 0000CST 31 2359CST 0 0 0.00K Drought

A few more rainfall events during the latter half of May allowed drought conditions continued to improve across the Rio Grande Valley and Deep South Texas through the end of the month. The most influential occurred on May 24th, when between 1 and 2.5 inches of rain fell near the Rio Grande in Starr through Zapata County, with a second stripe of 1 to 4 inches in much of Brooks County; some spots near Falfurrias 5 inches! Drought conditions across Zapata and western Jim Hogg counties were lowered to Moderate (D1). Severe (D2) Drought conditions replaced Extreme (D3) levels across western Starr, eastern Jim Hogg and western Brooks counties. Extreme (D3) drought conditions covered eastern Brooks and replaced Exceptional (D4) levels there. Eastern Starr, and Cameron County also showed modest improvement.

TEXAS, South Central

TXZ171-173-183> Bandera - Bastrop - De Witt - Dimmit - Edwards - Frio - Gillespie - Kerr - Kinney - Lee - Llano - 188-193>194-202> Maverick - Medina - Real - Uvalde - Val Verde - Williamson - Zavala 204-217>219-224- 01 0000CST 228 31 2359CST 0 0 0.00K 0.00K Drought

May brought some much needed rain to South Central Texas. Much of the area received above normal rainfall and 14 counties moved to better than severe (Stage D2) drought. In addition, Bandera, Kerr, Medina, Real, Uvalde, and Williamson Counties improved a category to stage D2. All the other counties stayed the same with Kinney, Maverick, and Val Verde in exceptional (Stage D4) drought category, Dimmit, Edwards, and Zavala in extreme (Stage D3), and Bastrop, De Witt, Frio, Gillespie, Lee, and Llano in severe (Stage D2) category. Fire danger at the end of the month was low to moderate. Of the counties in D2 or worse drought seven had outdoor burn bans in effect at the end of the month. These were Dimmit, Edwards, Frio, Kinney, Maverick, Medina, and Val Verde. The seven day stream flow averages were much below normal (less than 10 percent) across the Colorado River basin. The Guadalupe, Nueces, Rio Grande, and Frio River basins were reporting below normal (10 to 24 percent) flow. Area lakes and reservoirs continued below normal pool elevations. Lake Amistad was around 61 feet below normal at 1056.3 feet which is a new record low for the lake. Lake Travis was 52 feet below normal and Medina Lake near 82 feet below normal which left it at 5.5 percent of capacity. The Edwards Aquifer saw some improvement from the rain in May, but was still 8 feet below normal, and 4.2 feet below the level at the end of May 2012. Uvalde was in stage 5 water restrictions and Kerrville was in stage 1.

Edwards County 27 NW Rocks Spgs 01 1930CST 0 0 0.00K 0.00K Hail (1.75)

593 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Central Uvalde County 5 NW Reagan Wells 01 2100CST 0 0 0.00K 0.00K Hail (0.88)

Kerr County 2 ESE Center Pt 01 2255CST 0 0 0.00K 0.00K Hail (1.00)

Kendall County Berghiem 02 0005CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A thunderstorm produced wind gusts estimated at 58 mph that knocked down large tree limbs.

A cold front brought thunderstorms to South Central Texas some of which produced large hail and damaging wind gusts. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Maverick County El Indio 09 1850CST 0 0 0.00K 0.00K Hail (1.75)

Gillespie County 6 WNW Doss 09 1925CST 0 0 0.00K 0.00K Hail (1.25)

Gillespie County 4 E Doss 09 1939CST 0 0 0.00K 0.00K Hail (2.75)

A thunderstorm produced baseball size hail in Cherry Spring.

Edwards County 27 ENE Rocks Spgs Arpt 09 1950CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A thunderstorm produced wind gusts estimated at 58 mph that downed several trees and damaged a carport.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Gillespie County 6 SSE Cherry Spg 09 2000CST 0 0 0.00K 0.00K Hail (1.75)

Gillespie County 7 SSE Cherry Spg 09 2006CST 0 0 0.00K 0.00K Hail (1.75)

Gillespie County 7 NNW Fredericksburg Arpt 09 2006CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

A thunderstorm produced wind gusts estimated at 81 mph that downed tree branches.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Gillespie County 1 S Fredericksburg 09 2023CST 0 0 0.00K 0.00K Hail (1.00)

Gillespie County 4 W Cave Creek 09 2025CST 0 0 0.00K 0.00K Hail (1.75)

Gillespie County 1 W Fredericksburg 09 2029CST 0 0 0.00K 0.00K Hail (3.00)

Gillespie County Fredericksburg 09 2030CST 0 0 0.00K 0.00K Hail (1.75)

A thunderstorm produced hail that covered the ground with drifts up to eight inches deep. The largest hail was golf ball size.

594 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Central Gillespie County 1 S Fredericksburg 09 2031CST 0 0 0.00K 0.00K Hail (2.00)

Gillespie County 2 SW Stonewall 09 2039CST 0 0 2.00K 0.00K Hail (1.75)

A thunderstorm produced golf ball size hail that broke windshields.

Gillespie County 1 S Fredericksburg 09 2040CST 0 0 0.00K 0.00K Hail (1.00)

Kerr County 4 SSW Hunt 09 2058CST 0 0 0.00K 0.00K Hail (1.25)

Gillespie County 3 NNW Albert 09 2059CST 0 0 0.00K 0.00K Hail (1.00)

Blanco County 7 S Hye 09 2103CST 0 0 0.00K 0.00K Hail (1.75)

Blanco County 7 WNW Blanco 09 2111CST 0 0 0.00K 0.00K Hail (1.75)

Blanco County Blanco 09 2120CST 0 0 0.00K 0.00K Hail (0.75)

Kerr County 8 WSW Legion 09 2135CST 0 0 0.00K 0.00K Hail (1.00)

Kerr County 11 SSE Hunt 09 2140CST 0 0 0.00K 0.00K Hail (0.75)

A thunderstorm produced hail that covered Hwy 16 12 miles southwest of Kerrville. The largest hail was penny size.

Hays County 11 W Wimberley 09 2152CST 0 0 0.00K 0.00K Hail (1.00)

Comal County 1 N Gruene 09 2200CST 0 0 2.00K 0.00K Hail (0.75)

A thunderstorm produced hail one half to three quarters of an inch in diameter that dented a car.

Comal County 2 NW New Braunfels 09 2209CST 0 0 0.00K 0.00K Hail (1.00)

Comal County 1 E New Braunfels 09 2213CST 0 0 0.00K 0.00K Hail (1.00)

Comal County 2 NW New Braunfels 09 2215CST 0 0 0.00K 0.00K Hail (1.00)

Comal County 2 SSE New Braunfels 09 2215CST 0 0 0.00K 0.00K Hail (1.00)

595 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Central Comal County 2 NNW New Braunfels 09 2215CST 0 0 0.00K 0.00K Hail (1.00)

Hays County 3 WSW San Marcos Lowman 09 2215CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A thunderstorm produced wind gusts estimated at 58 mph that blew down power lines.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Comal County 1 E New Braunfels 09 2223CST 0 0 0.00K 0.00K Hail (1.00)

Guadalupe County 3 NE Clear Spg 09 2224CST 0 0 0.00K 0.00K Hail (0.88)

Hays County 2 SW San Marcos 09 2227CST 0 0 0.00K 0.00K Hail (0.88)

Caldwell County 1 SW Lockhart Muni Arpt 09 2242CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A thunderstorm produced wind gusts estimated at 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Caldwell County Luling 09 2302CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A thunderstorm produced wind gusts estimated at 58 mph that blew a tree down.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Kerr County 4 SSW Hunt 10 0238CST 0 0 0.00K 0.00K Hail (0.75)

Real County 14 NNE Prade Ranch 10 0415CST 0 0 0.00K 0.00K Hail (1.75)

A thunderstorm produced golf ball size hail near Garven's Store.

Kerr County 4 W Hunt 10 0445CST 0 0 0.00K 0.00K Hail (1.00)

Kerr County 2 E Hunt 10 0447CST 0 0 0.00K 0.00K Hail (0.75)

Kerr County 5 SW (ERV)Schreiner Fld K 10 0459CST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm produced pea to quarter size hail. Comal County 6 NNE Spring Branch 10 0540CST 0 0 0.00K 0.00K Hail (2.00)

A thunderstorm produced hail the largest of which was two inches in diameter, but was mostly pea size.

Comal County 4 NW New Braunfels 10 0600CST 0 0 0.00K 0.00K Hail (0.88)

596 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Central Medina County 1 NE Mico 10 0620CST 0 0 0.00K 0.00K Hail (1.25)

Comal County 2 NW New Braunfels 10 0635CST 0 0 0.00K 0.00K Hail (1.00)

Guadalupe County 1 W Geronimo 10 0645CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A thunderstorm produced wind gusts estimated at 58 mph that downed numerous large tree limbs.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Guadalupe County 3 NE Clear Spg 10 0647CST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm produced quarter size hail at the NWS Weather Forecast Office.

Lavaca County 2 NNE Halletsville 10 0831CST 0 0 0.00K 0.00K Hail (1.50)

Uvalde County Reagan Wells 10 1600CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A thunderstorm produced wind gusts estimated at 60 mph and pea size hail.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Val Verde County 1 N Del Rio 10 1645CST 0 0 0.00K 0.00K Hail (0.75)

A thunderstorm produced one half to three quarters of an inch diameter hail at the Del Rio International Airport.

Val Verde County 3 NNW (DRT)Del Rio Intl Ar 10 1645CST 0 0 0.00K 0.00K Hail (1.00)

Medina County 6 WSW (HDO)Hondo Muni Ar 10 1650CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A thunderstorm produced wind gusts estimated at 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Medina County 1 NW Hondo 10 1657CST 0 0 0.00K 0.00K Hail (1.00)

Burnet County 1 N Burnet Craddock Arpt 10 1700CST 1715CST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm produced nickel to quarter size hail for 15 minutes.

Uvalde County 4 NE North Uvalde 10 1715CST 0 0 10.00K 0.00K Thunderstorm Wind (61EG)

A thunderstorm produced wind gusts estimated at 70 mph that snapped six power poles and downed large trees.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Llano County 5 NE Valley Spgs 10 1720CST 0 0 0.00K 0.00K Hail (0.88)

597 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Central Medina County 1 SE Castroville Muni Arp 10 1730CST 1739CST 0 0 2.00K 0.00K Hail (1.00)

A thunderstorm produced quarter size hail for nine minutes that broke windows on a house.

Medina County 1 NW Hondo 10 1730CST 0 0 0.00K 0.00K Hail (1.00)

Llano County 1 N Lone Grove 10 1735CST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm produced quarter size hail and wind gusts that blew down several trees.

Llano County 1 N Lone Grove 10 1735CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

A thunderstorm produced wind gusts estimated at 58 mph that blew down several trees. This storm also produced quarter size hail. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Bexar County 3 SSW Atascosa 10 1750CST 0 0 0.00K 0.00K Hail (1.75)

Burnet County 5 NW Sudduth 10 1755CST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm produced quarter size hail and wind gusts estimated at 50 mph.

Bexar County 2 SSE Southton 10 1805CST 0 0 0.00K 0.00K Hail (1.75)

A thunderstorm produced golf ball size hail and wind gusts that blew down several trees near the Medina River Natural Area.

Frio County 8 SSE Frio Town 10 1805CST 0 0 0.00K 0.00K Hail (1.75)

Frio County 3 NW Pearsall 10 1805CST 0 0 0.00K 0.00K Hail (3.50)

Frio County 4 N Pearsall 10 1805CST 0 0 0.00K 0.00K Hail (2.75)

Bexar County 2 SSE Southton 10 1805CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A thunderstorm produced wind gusts estimated at 58 mph that blew down several trees near the Medina River Natural Area. This storm also produced golf ball size hail. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Frio County 1 NW Pearsall 10 1810CST 0 0 0.00K 0.00K Hail (2.50)

Frio County 3 NNW Pearsall 10 1810CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

A thunderstorm produced wind gusts estimated at 60 mph that broke or knocked out numerous west facing windows on houses, RVs, and other vehicles. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

598 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Central Medina County 1 SE Lacoste 10 1810CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

A thunderstorm produced wind gusts estimated at 60 mph that broke numerous windows, tore siding and roofing away, and uprooted six to eight inch trees. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Frio County 2 NNW Pearsall 10 1820CST 0 0 0.00K 0.00K Hail (2.50)

Bexar County 4 W Macdona 10 1820CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

A thunderstorm produced wind gusts estimated at 58 mph that uprooted some large trees.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Bastrop County Elgin 10 1830CST 0 0 0.00K 0.00K Hail (1.00)

Travis County 2 WSW Vinson 10 1835CST 0 0 0.00K 0.00K Hail (1.00)

Wilson County 1 NE Floresville 10 1838CST 0 0 0.00K 0.00K Hail (0.88)

Travis County 2 E Oak Hill 10 1840CST 0 0 0.00K 0.00K Hail (1.00)

Bexar County 3 SE Von Ormy 10 1845CST 0 0 10.00K 0.00K Thunderstorm Wind (61EG)

A thunderstorm produced wind gusts estimated at 70 mph that damaged several houses, a silo, and overturned an 18 wheeler truck. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Travis County 1 NNE Vinson 10 1855CST 0 0 0.00K 0.00K Flash Flood Thunderstorms produced heavy rain that caused flash flooding stopping travel along W. Ben White Blvd. in Austin.

Atascosa County 9 SSW Christine 10 1906CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A thunderstorm produced wind gusts estimated at 70 mph five miles north of Cross.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Bastrop County 1 NNE Elgin 10 1914CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A thunderstorm produced wind gusts estimated at 58 mph that downed trees on Red Town Rd. in Elgin.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Travis County 1 WSW North Oaks 10 1920CST 0 0 0.00K 0.00K Flash Flood 1 NNW Fiskville Thunderstorms produced heavy rain that caused flash flooding requiring a vehicle water rescue.

Bastrop County 1 SW Elgin 10 1948CST 0 0 0.00K 0.00K Flash Flood Thunderstorms produced heavy rain that caused flash flooding on N. Avenue B, N. Avenue C, W. 3rd St., and Brenham St. in Elgin.

599 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Central Travis County 1 W Oak Hill 10 1948CST 0 0 0.00K 0.00K Flash Flood Thunderstorms produced heavy rain that caused flash flooding closing a low water crossing near the Y in Oak Hill.

Bastrop County 1 E Bastrop 10 1950CST 0 0 0.00K 0.00K Flash Flood Thunderstorms produced heavy rain that caused flash flooding closing several roads in Bastrop.

Bastrop County 2 WNW Elgin 10 2011CST 0 0 0.00K 0.00K Flash Flood Thunderstorms produced heavy rain that caused flash flooding closing Hwy 290 at County Line Rd. outside of Elgin.

Hays County 8 W Wimberley 10 2145CST 0 0 0.00K 0.00K Hail (0.88)

A series of upper level short wave troughs and a cold front brought severe thunderstorms to South Central Texas on consecutive days. These storms mainly produced large hail with several reports of damaging wind gusts and localized flash flooding. Zavala County 16 W La Pryor 11 1745CST 0 0 0.00K 0.00K Hail (0.88)

An upper level short wave trough induced convection over the Mexican mountains and some storms moved into the western part of South Central Texas. One of these storms produced nickel size hail.

Llano County 1 E Valley Spgs 16 0055CST 0 0 0.00K 0.00K Hail (1.00)

An upper level short wave trough caused thunderstorms in South Central Texas. One of these storms produced quarter size hail in Llano County. Real County 4 N Prade Ranch 24 0516CST 0 0 0.00K 0.00K Flash Flood 2 N Leakey Thunderstorms produced heavy rain that caused flash flooding closing Ranch Road 336 between Hwy 83 and FM 3235.

Uvalde County 4 N Uvalde Garner Arpt 24 0900CST 0 0 0.00K 0.00K Flash Flood Thunderstorms produced heavy rain that caused flash flooding closing Hacienda Rd. and Hwy 90.

Real County 3 NNW Leakey 24 1100CST 0 0 0.00K 0.00K Flash Flood Thunderstorms produced heavy rain that caused flash flooding closing Ranch Roads 336 and 337 and FM 1120 near Leaky.

Bexar County 3 SSW Beckmann 24 1245CST 0 0 0.00K 0.00K Flash Flood 3 N Fratt Thunderstorms produced heavy rain that caused flash flooding closing a few highways in and around San Antonio including Sleepy Hollow and Sunburst Ln. Bexar County 1 NE Woodlawn Lake 24 1405CST 0 0 0.00K 0.00K Flash Flood 2 ENE Fratt Thunderstorms produced heavy rain that caused flash flooding closing numerous roads around the San Antonio metro area including Holbrook Dr., Old O'Connor Rd., and Dreamland Dr. Travis County 2 ESE Cedar Vly 24 1443CST 0 0 0.00K 0.00K Flash Flood 2 W Waters Rock Thunderstorms produced heavy rain that caused flash flooding closing several roads across the western Austin metro area including Joe Tanner Rd., Old Bee Caves Rd., and River Hills Rd.

600 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Central Wilson County 1 S La Vernia 25 0245CST 0246CST 0.3 50 0 0 25.00K 0.00K Tornado (EF0)

The brief tornado affected a dozen homes and aluminum carports in the Country Garden and Woodcreek communities of La Vernia. The tornado formed in an open field near the intersection of Woodcreek Dr. and Bluff Creek Rd. in Woodcreek. It then traveled north before dissipating. Straight line winds from the same storm produced additional damage further north along Country Gardens Rd., but damage ended just short of Bluebonnet Rd. (FM 775). Maximum winds are estimated to be 70 mph.

Bexar County 3 NW Converse 25 0425CST 2 SW Selma 0427CST 0.4 100 0 0 100.00K 0.00K Tornado (EF0)

The brief tornado did minor damage to homes near the intersection of Judson Rd. and Woodsrim St. in Live Oak. The stucco and wood facade of a medical building on Judson Rd. was completely pulled off. Several power poles were snapped with trees uprooted and limbs twisted off several mature Oak trees. The Northeast Methodist Hospital had damage to the air conditioning units on its roof and had some broken windows and doors. An aluminum storage shed behind one house was blown clearly over two houses before landing in the backyard of a third house. Maximum winds are estimated to be 80 mph.

NWS Damage Survey picture shows damage to an office park off Judson Road right across from Northeast Methodist Hospital in Live Oak. An EF0 tornado not only did damage to this building but several homes in the area as well as the nearby hospital. Bexar County (RND)Randolph Afb Sa 25 0600CST 4 W Elmendorf Midlake Ar 0945CST 2 0 0.00K 0.00K Flash Flood

601 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Central

Thunderstorms produced heavy rain that caused flash flooding in and around San Antonio and Bexar County. There was record rainfall in the San Antonio area with the San Antonio International Airport recording 9.87 inches of rain (2nd highest 24 hr total on record) and CoCoRAHS observers reporting over 11 inches. Most of the rain fell in about six hours with four inches in one hour between 6 and 7 AM. A USGS stream and rain gauge on Olmos Creek and Dresden Drive reported 2.58 inches in 15 min between 615 and 630 am. The gauge reported 6.13 inches in one hour, 9.46 inches in 2 hours, and totaled 15.31 inches in 5 hours. A 24hr total at this gauge was 17 inches of rain. This led to massive flooding in the Olmos Basin/Creek just inside Loop 410 near the Quarry. Most of the flooding across the city was in north central and northwest San Antonio along and just side Loop 410. This rain came a day after another heavy rain event with parts of the city receiving over two inches. This all led to major flooding with Olmos Creek, the Medina River, Leon Creek, the San Antonio River, and Salado Creek all reaching major flood stage. There were many roads closed including Hwy 281 at Olmos Creek which remained closed for several days. At 10 AM, there was a foot of water over Ingram and Callaghan Rds. San Antonio creeks and streams saw big rises in their levels which led to additional flooding down steam in the south portion of Bexar County. Areas that were hit the hardest included the Espada Road area near the San Antonio River and Loop 410 intersection. A mobile home park on Plumnear Road off Leon Creek on the southwest side of the city was flooded out. Several hundred rescues and calls for rescue occurred during the morning of the 25th. Two fatalities occurred inside Bexar County. A woman was killed when her car was swept away in flood waters along Leon Creek at the 5800 Block of U.S Highway 90. Another woman was killed in her car when her car was swept away in the 400 Block of Rhapsody Drive about 730 am. In all the City of San Antonio and Bexar County Emergency Management agencies found over 350 impacted residences with 15 of those being destroyed and 27 suffering major damage. The other residences suffered minor damages. Most of the destroyed residences were in the Espada area along the San Antonio River in southeast Bexar County. F30VE, F81VE

Photo of Highway 281 in Central San Antonio. Photo courtesy of San Antonio Express News. Karnes County Kenedy 25 0907CST 2 W Lenz 0959CST 0 0 0.00K 0.00K Flash Flood

Thunderstorms produced heavy rain that caused flash flooding closing Hwy 72 west of Kenedy and Hwy 181 at the Bee County line. Comal County 5 SE Spring Branch 25 0920CST 3 SSW Sattler 0940CST 0 0 0.00K 0.00K Flash Flood

Thunderstorms produced heavy rain that caused flash flooding. Rainfall totals reported by CoCoRAHS observers were up to 8.93 inches. This rain flooded several roads in western and central Comal County. There was also one water rescue.

Karnes County 1 NW Karnes City 25 1030CST 0 0 0.00K 0.00K Funnel Cloud

A thunderstorm produced a funnel cloud.

602 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Central Karnes County 3 SW Runge 25 1102CST 0 0 0.00K 0.00K Funnel Cloud

A thunderstorm produced a funnel cloud near the town of Runge.

Guadalupe County 2 NE Seguin Guadalupe Arp 25 1145CST 0 0 0.00K 0.00K Flash Flood 4 WSW Behring Store Thunderstorms produced heavy rain that caused flash flooding closing several roads in and around Seguin.

Wilson County 2 NNE Floresville 25 1145CST 0 0 0.00K 0.00K Flash Flood Thunderstorms produced heavy rain that caused flash flooding closing several roads in and around Floresville.

Guadalupe County 1 NW Senertz 25 1500CST 1 0 0.00K 0.00K Flash Flood An 18 year old male was killed when he unsuccessfully tried to cross a rain swollen Cibolo Creek around 4 pm. His body was recovered that evening near the area where he went missing. M18IW

An upper level trough moved across Texas and combined with deep low moisture to produce heavy rain on consecutive days that produced flash flooding. The city of San Antonio was hit the hardest with portions of the city seeing significant flash flooding, flooded homes, and even a few fatalities. In addition, a few small tornadoes were reported. M18IW

Val Verde County (DRT)Del Rio Intl Ar 28 2339CST 0 0 10.00K 0.00K Thunderstorm Wind (55MG)

A thunderstorm produced wind gusts measured by the Del Rio International Airport ASOS at 63 mph that damaged the National Weather Service upper air facility. A dryline in west Texas caused thunderstorms that moved into western parts of South Central Texas. One of these storms produced damaging wind gusts in Val Verde County. Note: The measured wind gust of 55 knots is equivalent to 63 mph.

TEXAS, South Panhandle

TXZ021>044 Bailey - Briscoe - Castro - Childress - Cochran - Cottle - Crosby - Dickens - Floyd - Garza - Hale - Hall - Hockley - Kent - King - Lamb - Lubbock - Lynn - Motley - Parmer - Stonewall - Swisher - Terry - Yoakum

01 0000CST 31 2359CST 0 0 0.00K 50.0M Drought

Drought conditions largely worsened through the month of May with most rainfall eluding the region. Extreme (D3) and exceptional (D4) drought levels expanded across the entire area. Only portions of Hall and Yoakum counties remained in severe (D2) drought. May is typically the time of year when the region experiences rainfall however not much rain has fallen this springtime. Deficits were on the order of one to three inches area wide. Lubbock received only 1.15 inches while areas across the Rolling Plains fared better with more frequent thunderstorm events. Several late season cold fronts brought some of the coldest temperatures on record for the month of May. The first half of the month was generally much colder than normal because of these cold fronts with the second half of the month warmer than normal. By the end of the month, temperatures were only 0.3 and 0.7 degrees above normal at Lubbock and Childress, respectively. Keetch-Byram Drought Index values expectantly worsened through the month. By the end of May, values between 500 and 700 were observed across the entire region except for the extreme southwestern Texas panhandle. In this location, values between 200 and 400 were discernible. Rain was desperately needed for area crops otherwise another year of poor crops can be expected. Winter wheat was nearly a total loss for the region with most crops being baled out for hay. Pastures were also in increasingly poor to very poor condition. Spring planting had begun despite little soil moisture available. Fire weather conditions were very low this year despite a dry season. This was mainly due to low fuel load after three years of drought and minimal growth. Economic losses due to drought through May since the drought began were estimated near $2.7 billion.

01 2000CST 2315CST 0 0 0.00K 0.00K High Wind

603 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Panhandle TXZ022 Castro 01 2010CST 02 0310CST 0 0 0.00K 0.00K High Wind

A powerful cold front pushed through West Texas during the daytime hours of the first. However, colder air and very strong winds did not arrive until late in the evening. Some winds reached high wind criteria over the extreme southwestern Texas panhandle. Sustained high wind reports are as follows from the Texas Tech University Mesonet: 41 mph at Friona (Parmer County)...41 mph at Hart (Castro County), and 41 mph at Dimmitt (Castro County).

Hockley County 2 W Coble 06 2046CST 0 0 0.00K 0.00K Hail (1.00)

A storm chaser reported quarter size hail at the intersection of Highway 114 and Farm to Market Road 303. No damage was reported. Hockley County 3 E Sundown 06 2112CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

A storm chaser estimated a wind gust to 65 mph three miles east of Anton. No damage was reported.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Terry County 5 NNE Brownfield 06 2150CST 0 0 0.00K 0.00K Thunderstorm Wind (58EG)

A storm chaser estimated a wind gust to 67 mph five miles north-northeast of Brownfield. No damage was reported.

Despite marginal moisture characterized by dewpoints in the low 40s, ample wind shear and weak instability in upslope flow gave rise to scattered thunderstorms in far eastern New Mexico early this evening. One of these storms matured into a supercell that tracked from Portales, NM southeast to east of Morton and near Levelland early this night. The only severe weather from this storm occurred in the form of quarter size hail and downburst winds as it transitioned into a linear multicell near Levelland. Additionally, power outages were reported near and around Levelland. Note: The estimated wind gust of 58 knots is equivalent to 67 mph. Hall County 3 W Estelline 08 1539CST 0 0 0.00K 0.00K Hail (1.25)

Half dollar size hail was reported by a SKYWARN spotter west of Estelline.

Hall County 5 SE Lakeview 08 1625CST 0 0 0.00K 0.00K Hail (2.75)

A storm chaser observed baseball size hail southeast of Lakeview.

Cottle County 1 S Paducah 08 1640CST 0 0 0.00K 0.00K Hail (1.00)

A COOP observer reported quarter size hail near Paducah. Stonewall County 13 NNW Peacock 08 1655CST 0.01 40 0 0 0.00K 0.00K Tornado (EF0)

A storm chaser observed a very brief tornado over open land in far northwest Stonewall County. The only evidence of the tornado was a rotating column of dirt underneath a slowly-rotating cloud base.

Cottle County 2 SE Paducah 08 1728CST 0 0 0.00K 0.00K Hail (2.00)

Hen egg size hail was spotted by a storm chaser southeast of Paducah.

604 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Panhandle

Scattered supercell thunderstorms erupted along a dryline located just east of the Caprock escarpment this afternoon. These storms tracked slowly east through the Rolling Plains and far southeast Texas Panhandle accompanied by hail as large as baseballs at times and rotating wall clouds. One of these wall clouds produced a brief tornado in northwest Stonewall County over open land. Briscoe County Silverton 09 1616CST 1624CST 0 0 0.00K 0.00K Hail (0.75)

Dickens County Mc Adoo 09 1723CST 0 0 15.00K 0.00K Hail (1.75)

A fire department official reported hail to the size of golf balls in McAdoo. Large hail also damaged a fuel tank which spilled about 4000 gallons of gasoline. Parmer County 2 NE Friona 09 1845CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)

A Texas Tech University West Texas mesonet site near Friona recorded a wind gust to 60 mph. No damage was reported.

Note: The measured wind gust of 52 knots is equivalent to 60 mph.

TXZ028 Lamb 09 1930CST 1940CST 2 0 0.00K 0.00K Strong Wind

Scattered thunderstorms developed both east and west of the dryline on the afternoon of the ninth with an upper level disturbance moving over West Texas. Severe storms in the moist air east of the dryline produced large hail while severe storms in the dry air west of the dryline produced strong wind gusts. A weak thunderstorm northeast of Lamb County developed a strong outflow boundary that moved through Sudan around 1930 CST. At the same time, a tractor trailer was traveling east along US Highway 84 and jackknifed into the westbound lane. The tractor trailer hit a pickup truck and killed the driver and a young boy that was a passenger in the pickup truck. M75VE, M7VE

TXZ035 Lubbock 17 2335CST 0 0 0.00K 0.00K High Wind

TXZ028-035 Lamb - Lubbock 18 0005CST 0101CST 0 0 0.00K 0.00K High Wind

An upper level disturbance moved across the South Plains ahead of a retreating dryline during the early overnight hours. Isolated virga showers and embedded thunder subsequently developed, producing severe wind gusts at the ground due to low level dry air in place. Maximum high wind gust reports are as follows from the Texas Tech University Mesonet and Automated Surface Observation System: 69 mph at Slaton (Lubbock County)...64 mph at Amherst (Lamb County)...and 59 mph at the Lubbock Preston Smith International Airport (Lubbock County).

Cottle County 2 S Paducah 18 1659CST 0 0 0.00K 0.00K Hail (1.00)

Local fire rescue officials observed quarter size hail south of Paducah.

Childress County 3 S Tell 18 1729CST 0 0 0.00K 0.00K Hail (1.00)

A local COOP observer reported quarter size hail south of Tell.

Isolated storms developed across the far southeast Texas panhandle and northern Rolling Plains during the late afternoon and early evening hours ahead of the dryline. A couple of these storms became severe, producing large hail.

605 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Panhandle Castro County 2 NE Dimmitt 21 0600CST 0 0 0.00K 0.00K Thunderstorm Wind (56MG)

The West Texas Mesonet station in Dimmitt recorded a 65 mph wind gust from the outflow of a nearby thunderstorm.

Note: The measured wind gust of 56 knots is equivalent to 64 mph. Lamb County 4 N Littlefield 21 0635CST 0 0 0.00K 0.00K Hail (1.75)

A citizen reported golf ball size hail at a golf course north of Littlefield.

Hale County 1 SE Cotton Center 21 0710CST 0 0 0.00K 0.00K Hail (1.75)

A citizen reported golf ball size hail near Cotton Center. A vigorous upper level disturbance ejected out of New Mexico during the early morning hours. The system aided in developing isolated storms in a highly sheared environment across portions of the far southwestern Texas Panhandle and northern South Plains. Some of these storms became severe.

Floyd County 5 ENE Muncy 23 1253CST 0.01 30 0 0 0.00K 0.00K Tornado (EF0)

Multiple storm spotters and chasers observed a very brief landspout tornado about seven miles WSW of Cedar Hill.

Floyd County 10 SE South Plains 23 1322CST 0.01 30 0 0 0.00K 0.00K Tornado (EF0)

Following a brief landspout tornado earlier, Floydada Fire Department personnel observed a second brief landspout tornado about two miles south of Cedar Hill. Floyd County 7 E Floydada Muni Arpt 23 1323CST 6 NW Dougherty 1420CST 0 0 Hail (1.75)

For nearly an hour, a slow-moving supercell drifted south over rural areas of southeast Floyd County and produced several instances of large hail. These hailstones ranged in size from quarters to golfballs and produced an undetermined amount of damage to crops and some vehicles.

Floyd County 7 NW Dougherty 23 1330CST 1335CST 0.67 50 0 0 0.00K 0.00K Tornado (EF0)

Several storm spotters and storm chasers observed a landspout tornado with a visible funnel cloud for about five minutes. This landspout moved slowly southward north of US Highway 62/70 and was visible as far away as the Hale County Airport in Plainview. Fortunately, this landspout caused no damage as it tracked over open land.

Crosby County 8 E Cone 23 1414CST 1 WSW Crosbyton Paulder Ar 1459CST 0 0 20.00K Thunderstorm Wind (67MG)

A swath of destructive winds in the rear flank downdraft of a supercell exited Floyd County and engulfed much of northern Crosby County for at least 45 minutes. The slow movement of the supercell and its eventual collapse near Crosbyton prolonged the duration and intensity of these winds. Wind gusts in Crosbyton were measured as high as 77 mph resulting in scattered minor structural damage. Several tree limbs were broken and a few trees were completely snapped or uprooted. Multiple power outages resulted from snapped power poles throughout portions of northern Crosby County. These fierce winds also created a dangerous haboob that produced near zero visibility in blowing dust for several minutes. An unknown quantity of young grain crops in the area were damaged or destroyed after being sand blasted by wind and dust.

Note: The measured wind gust of 67 knots is equivalent to 77 mph.

606 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Panhandle Floyd County 2 NE Lakeview 23 1420CST 1425CST 0 0 10.00K 0.00K Thunderstorm Wind (61EG)

A NWS COOP observer reported shingles removed from multiple homes southeast of Floydada. These winds were the result of an intense rear flank downdraft of a supercell that would later proceed southward into Crosby County and produce an extended period of strong and severe winds. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Dickens County 1 WNW Afton 23 1449CST 0 0 Hail (1.75) 2 SSW Elton Law enforcement personnel estimated golf ball size hail in Afton and also five miles north of Dickens. Damage from the hail was not known. Dickens County 1 E Spur 23 1515CST 0 0 5.00K 0.00K Thunderstorm Wind (70EG)

A roof was partially blown off a home about one mile east of Spur. The cause was determined to be an intense downburst wrapping around a mesocyclone passing east of the house. These destructive straight-line winds would continue southeast into northeastern Kent County and cause scattered to widespread wind damage.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Dickens County 11 E Spur 23 1515CST 12 E Spur Muni Arpt 1525CST 1.94 300 0 0 0.00K 0.00K Tornado (EF1)

A NWS aerial storm survey discovered evidence of a tornado debris pattern in open ranch land in far southeast Dickens County. Damage to trees in this area displayed a hallmark convergent pattern and correlated well with a tight gate-to-gate rotation couplet in the area as observed by Doppler radar. The path length and width are crude estimates given generally sparse damage indicators throughout the path of this tornado. Damage to some trees was deemed sufficiently strong to warrant an EF- 1 rating.

NWS Lubbock radar image around the time of an EF-1 tornado in rural southeast Dickens County. An aerial storm survey the following day revealed some convergent debris patterns consisting of trees and tree limbs scattered about a nearly 2-mile long path with damage widths up to 300 yards at times. Kent County 1 E Girard 23 1537CST 1 N Jayton Kent Co Arpt 1620CST 0 0 300.00K Thunderstorm Wind (80MG)

607 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Panhandle

Similar to an earlier supercell in Floyd and Crosby Counties, intense downburst winds in the rear flank downdraft created prolonged and widespread destructive winds in northeast Kent County. These winds were likely enhanced by a strong mesocyclone that earlier was tornadic in southeast Dickens County. A Texas Tech University West Texas mesonet located one mile SSE of Jayton recorded 20 consecutive minutes of severe wind gusts ranging from 59 mph to 92 mph! In Girard and Jayton, scattered structural damage was commonplace and at least one trailer was completely destroyed. At least one home in Girard lost a portion of its roof, but damage to most homes in Girard and Jayton was less severe and consisted of shingle loss, damage to siding, cracked or shattered windows, and toppled fences. Several trees were damaged; one of which totaled a car in Jayton after landing directly on the vehicle. Damage to area farm and ranch land consisted of toppled center pivots and large storage tanks. Power outages were common as several dozen power poles were snapped. Fortunately, no injuries occurred during this extended bout of destructive winds; however, damage to some homes was compounded by heavy rains entering damaged roofs and cracked windows resulting in water damage to carpets, walls and furniture. A NWS storm survey the following day in Girard and Jayton uncovered classic divergent debris patterns associated with downbursts. Monetary losses are estimated at this time and may rise once insurance figures become available.

Note: The measured wind gust of 80 knots is equivalent to 92 mph.

Aerial view of a divergent debris pattern in Girard, TX associated with a significant downburst on the rear flank of a supercell. Photo courtesy of Joe Jurecka. Kent County Jayton 23 1545CST 1730CST 0 0 0.00K 0.00K Heavy Rain

Torrential rains fell over much of far northeast Kent County from a slow-moving, high precipitation supercell. In Jayton, the NWS COOP observer measured a staggering 4.3 inches of rain; most of which fell in one hour. Elsewhere, a Texas Tech University West Texas mesonet station southeast of Jayton recorded 2.45 inches; however, intense straight-line winds during the heaviest rainfall likely resulted in some undercatch issues. These rains produced minor flooding of roads and ranch land with at least one instance of several inches of water flowing over a road near Girard. Runoff from these rains caused a river gage ten miles south of Aspermont to rise seven feet in four hours early the next morning, but this impressive rise still remained well below the river flood action stage.

608 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Panhandle

Torrential rains measured between 2.5 and 4.3 inches in less than 90 minutes created several instances of mostly minor road and street flooding in northeast Kent County. This photo shows about five inches of flowing water over a road near Girard. Photo courtesy of KCBD news. Dickens County 1 W Spur 23 1613CST 1615CST 0 0 0.00K 0.00K Hail (1.75)

Broadcast media estimated hailstones ranging in size from quarters in Spur to golf ball size one mile east of Spur. No reports of damage were received. Stonewall County 4 SW Aspermont Arpt 23 1630CST 1633CST 0 0 0.00K 0.00K Hail (3.00)

An amateur radio operator measured large hail of golf ball size six miles southwest of Aspermont and tennis ball size 12 miles southwest of Aspermont. A separate report and photo of three-inch diameter hail was also received about 12 miles southwest of Aspermont. No damage was observed.

Very large hail up to three inches in diameter that fell southwest of Aspermont. Photo credit unknown.

609 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Panhandle Lynn County Odonnell 23 1803CST 0 0 0.00K 0.00K Hail (1.10)

A resident reported hail slightly larger than quarters covering their lawn. No damage was reported.

Lynn County 2 NW Skeen 23 1825CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

A trained spotter measured a wind gust to 61 mph in Tahoka. Driven southwest by outflow from a complex of thunderstorms in Oklahoma early this morning, a frontal boundary moved into the northeast South Plains and northern Rolling Plains by noon ahead of very moist easterly winds. Although a weak upper ridge was in place over West Texas, a subtropical jet streak flowing over the region assisted in severe thunderstorm development. Strong instability combined with upslope flow and the frontal boundary allowed a supercell storm to erupt early this afternoon in central Floyd County before moving slowly south accompanied by multiple landspout tornadoes, large hail and heavy rain. As this supercell collapsed near Cone, a haboob raced south and west with winds up to 77 mph resulting in minor damage to trees and structures in Crosbyton. Thereafter, a second supercell storm developed to the east in central Dickens County which also proceeded to move south. While east of Spur, this supercell produced an EF-1 tornado over ranch land that damaged some trees. As this storm's mesocyclone continued southward, intense and prolonged rear flank downdraft winds measured as high as 92 mph created scattered structural damage in Girard and Jayton. Torrential rains were measured as high as 4.3 inches by a NWS COOP observer in Jayton; however, flash flooding was not reported. Fortunately, no injuries occurred with any of these storms. Total property losses could exceed $250,000. Note: The measured wind gust of 53 knots is equivalent to 61 mph.

TXZ035 Lubbock 25 2220CST 0 0 0.00K 0.00K High Wind Decaying showers and thunderstorms developed an outflow boundary, which produced a wind gust of 65 mph at Reese Center.

Childress County 1 NW Tell 27 1645CST 0 0 Hail (2.75)

The public estimated hail as large as baseballs in Tell. Instances of damage to property or crops were unknown.

Childress County 3 W Childress 27 1645CST 0 0 0.00K Hail (1.75)

The public estimated hail between nickel and golf ball size in Childress. Damage to property was unknown.

Dickens County 3 NNE Glenn 27 1646CST 0 0 0.00K 0.00K Hail (1.00)

A trained spotter estimated quarter size hail 14 miles north of Dickens. No damage was reported.

Motley County 1 W Roaring Spgs 27 1650CST 0 0 0.00K Hail (1.75)

Fire department personnel from Roaring Springs estimated mostly quarter size hail with some golf ball size hailstones in the city. Damage, if any, was unknown. Dickens County 1 SSW Elton 27 1710CST 0 0 0.00K 0.00K Hail (1.75)

A trained spotter estimated golf ball size hail five miles north of Dickens. No damage was reported.

Childress County 3 SW Arlie 27 1710CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

An NWS COOP observer located 20 miles NNE of Childress estimated wind gusts as high as 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

610 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Panhandle Garza County 1 N Post 27 1726CST 1730CST 0 0 0.00K Hail (1.75)

Law enforcement personnel in Post estimated golf ball size hail. The extent of any damage was not known.

Dickens County 2 ENE Afton 27 1730CST 0 0 0.00K 0.00K Hail (1.00)

A trained spotter estimated quarter size hail three miles east of Afton. No reports of damage were received.

The dryline mixed east of the Caprock Escarpment by late afternoon, creating an area of enhanced convergence across the Rolling Plains and extreme southeastern Texas Panhandle. Decreasing heights and cooling aloft allowed for sufficient instability to aid in generating scattered thunderstorms with large to giant size hail up to baseball size.

Parmer County 1 NE Friona 28 1437CST 0 0 0.00K 0.00K Hail (1.00)

An NWS COOP observer estimated a brief period of quarter size hail. No damage was reported.

Parmer County 7 W Lazbuddie 28 1445CST 0 0 0.00K 0.00K Hail (1.00)

The public estimated quarter size hail eight miles west of Lazbuddie. No damage was reported.

Parmer County 4 SSE Hub 28 1519CST 0 0 0.00K 0.00K Hail (1.25)

An off-duty NWS employee estimated 1.25 inch diameter hail 12 miles south of Friona. No damage was observed.

Parmer County 1 E Bovina 28 1525CST 0 0 0.00K 0.00K Hail (1.00)

A city official in Bovina estimated pea to quarter size hail. No damage was reported.

Parmer County 1 WNW Friona Benger Arpk 28 1530CST 1540CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)

A Texas Tech University West Texas Mesonet site located two miles northeast of Friona measured two separate severe wind gusts. The first was 58 mph at 1530 CST and the second of 60 mph occurred at 1540 CST.

Note: The measured wind gust of 52 knots is equivalent to 60 mph. Parmer County 7 WNW Lazbuddie 28 1534CST 0 0 0.00K 0.00K Hail (2.21)

A storm chaser measured 2.21 inch diameter hail 12 miles north of Muleshoe. No reports of damage were received.

Parmer County 1 NE Friona 28 1544CST 0 0 0.00K 0.00K Hail (1.00)

Volunteers from the Friona Fire Department estimated quarter size hail. No damage was reported.

Parmer County 1 NE Friona 28 1609CST 2 ESE Friona Benger Arpk 1626CST 0 0 75.00K Hail (1.75)

Multiple reports of large hail ranging from quarter size to golf ball size were received from Friona to about four miles east of Friona between 1609 and 1626 CST. Minor damage to vehicles and homes in Friona was common. The extent of damage to area crops, particularly young corn, was unknown.

611 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Panhandle Parmer County 14 NW Parmerton 28 1657CST 0 0 Hail (2.50)

After the first round of severe thunderstorms drifted northeast of Friona and dissipated, the retreating dryline ignited a more robust supercell thunderstorm near Rhea. This storm produce very large hail to tennis ball size four miles north-northwest of Rhea, reported by the local volunteer fire department. Damage from the hail was unknown. Shortly after crossing into Deaf Smith County, this supercell produced a tornado followed by more instances of very large hail.

Parmer County 10 NW Parmerton 28 1715CST 1721CST 0 0 0.00K Hail (1.75)

The Rhea fire department estimated golf ball size hail, lasting around six minutes. Damage, if any, was unknown.

A long-lived discrete supercell thunderstorm developed ahead of a dryline and approaching shortwave trough during the mid to late afternoon in Parmer County. Steady northward moisture advection kept this storm and associated dryline confined to the far southwest Texas Panhandle before the upper trough pushed it farther north in the Panhandle. Large hail up to tennis ball size, wind gusts to 60 mph, and brief lowerings in the form of funnel clouds and wall clouds were reported with this storm.

Briscoe County Silverton 29 1355CST 1358CST 0 0 0.00K 0.00K Hail (1.00)

An NWS COOP observer estimated dime to quarter size hail. No damage was reported.

Floyd County 3 E Lockney 29 1405CST 0 0 0.00K 0.00K Hail (1.75)

The public reported golf ball size hail four miles east of Lockney. Damage, if any, was unknown.

Briscoe County 3 ENE Quitaque 29 1430CST 4 NNE Gasoline 1435CST 0.68 50 0 0 5.00K 0.00K Tornado (EF0)

The first of two landspout tornadoes this afternoon developed just west of Valley Schools in far southeast Briscoe County and moved slowly eastward causing EF-0 damage to a barn. This tornado later passed within 1/4 mile of the Valley Schools' football field and was photographed and videoed by some members of the school faculty.

Hall County 2 SW Turkey 29 1444CST 1446CST 0.56 50 0 0 0.00K 0.00K Tornado (EF0)

Members of the Turkey Fire Department reported a landspout tornado about one mile south of Turkey. The landspout remained over open land for about two minutes before dissipating and was witnessed by many area residents including those as far away as Quitaque.

612 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Panhandle

View from Quitaque, TX looking east at a landspout near Turkey, TX. This brief tornado remained over open land and was witnessed by many area residents. Photo credit unknown. Hall County 2 ENE Eli 29 1600CST 5 ESE Memphis Muni Arpt 1619CST 0 0 0.00K 0.00K Hail (2.25)

A hailswath with large hailstones between quarter size and 2.25 inches in diameter fell from about four miles southwest of Memphis to six miles east-southeast of Memphis. Hail in Memphis was reported by the Fire Department to be pea to dime size. No damage was reported.

Hall County 1 NW Memphis 29 1640CST 1642CST 0 0 0.00K Hail (1.50)

Less than an hour after a thunderstorm with large hail pummeled rural areas southwest and southeast of Memphis, another severe thunderstorm produced large hail up to 1.5 inches in diameter - this time in the city of Memphis. The city emergency manager reported the hail fell for two minutes, but the extent of damage was unknown.

A strong upper level trough moved into west Texas during the early afternoon hours, resulting in convective initiation along the dryline. This large scale forcing was too far north to assist in breaking the cap farther south, which kept activity from developing farther south into the Rolling Plains. Large hail and an isolated tornado occurred along this line before dry air swept in and brought an end to storms across the far southeastern Panhandle.

TEXAS, Southeast Orange County 2 W Orange 09 2301CST 0 0 0.00K 0.00K Hail (0.88)

Nickel sized hail was reported with a passing storm. Orange County 2 W Orange 09 2345CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail was reported in Orange with a passing storm.

Jefferson County 1 S Gillburg 10 0400CST 8 NNW Voth 1400CST 0 0 50.00K 0.00K Flash Flood

Multiple rounds of heavy rainfall caused saturated ground that gave way to flash flooding. Streets and cars were flooded in the north end of Beaumont.

613 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Southeast

A vehicle missed the driveway while driving through flood waters. Photo provided by Beaumont Media. Jefferson County 2 NNW China 10 0910CST 0 0 0.00K 0.00K Hail (0.75)

Penny sized hail was reported near China via facebook. Hardin County 1 N Ariola 10 1300CST 26 ESE Loeb 1500CST 0 0 100.00K 0.00K Flash Flood

Multiple rounds of heavy rainfall caused saturated ground that gave way to flash flooding. A neighborhood flooded in Lumberton with 2 homes taking on water. Orange County 2 S Kilowatt 10 1413CST 1 SSW Bridge City 1500CST 0 0 0.00K 0.00K Flash Flood

Multiple rounds of heavy rainfall caused saturated ground that gave way to flash flooding. Several roads were flooded and closed around Bridge City and Vidor. A north to northwest flow with multiple short waves traveling across the area kicked off severe weather in Southeast Texas. High winds, hail, and heavy rain was reported during the event.

Hardin County 2 ENE Batson 22 0320CST 0 0 0.00K 0.00K Hail (1.75)

Golf ball size sized hail was reported on Highway 105 near Highway 770 southwest of Saratoga. The report was relayed by the Hardin County Sheriffs office. Jefferson County 1 NW Hamshire 22 0450CST 0 0 0.00K 0.00K Hail (1.00)

A report was relayed through Facebook of hail mostly nickel sized with some quarter sized mixed in.

Jefferson County 10 WSW Keith Lake 22 0535CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

A severe thunderstorm moved southeast across Jefferson County and into Sea Rim State Park producing a wind gust of 57 MPH. Early morning severe weather struck Southeast Texas with hail and a high wind gust reported. Note: The measured wind gust of 50 knots is equivalent to 58 mph.

614 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, West TXZ258 Guadalupe Mountains of Culberson County 01 2351MST 02 1251MST 0 0 0.00K 0.00K High Wind

Strong northeast winds occurred in the Guadalupe Mountains behind a cold front.

Borden County Gail 07 1900CST 1905CST 0 0 Hail (1.00)

A thunderstorm moved over Borden County and produced quarter sized hail in Gail.

Scurry County Union 07 2030CST 2035CST 0 0 Hail (1.00)

A thunderstorm moved over Scurry County and produced quarter sized hail in Union. The hail was covering the roadway at FM 1609 and W 37th. A weak upper level ridge was over the area with a surface trough that extended across Southeast New Mexico into the Big Bend. Weak convergence along a dryline was present across the Permian Basin and Lower Trans Pecos. Only modest moisture and instability was available, but enough upper level lift was present to contribute to storms that developed across the eastern Permian Basin. Terrell County 2 W Sanderson 10 1112CST 1117CST 0 0 Hail (0.88)

A thunderstorm moved over Terrell County and produced dime to nickel sized hail along US 90 near Sanderson.

An upper low was located over Arizona with associated upper level disturbances passing over West Texas. A cold front was present across the Trans Pecos. These features combined to produce needed lift for thunderstorm development mainly across the Lower Trans Pecos. Scurry County 2 SW Snyder 15 1535CST 1536CST 0 0 Thunderstorm Wind (55MG)

A thunderstorm moved over Scurry County and produced a 63 mph wind gust two miles southwest of Snyder.

Note: The measured wind gust of 55 knots is equivalent to 63 mph. Scurry County 3 E Snyder 15 1600CST 1601CST 0 0 Thunderstorm Wind (50MG)

A thunderstorm moved over Scurry County and produced a 58 mph wind gust three miles east of Snyder.

An upper low was positioned to the north of the region with a weak portion of upper level lift over the area. A dryline was located across the eastern Permian Basin. This dryline helped to create a focus for thunderstorm development during the late afternoon hours. Note: The measured wind gust of 50 knots is equivalent to 58 mph. Presidio County 28 N Candelaria 23 1648CST 1653CST 0 0 Hail (0.75)

A thunderstorm moved over Presidio County and produced penny sized hail nine miles west southwest of Valentine.

Brewster County 23 ESE Castolon 23 1650CST 1651CST 0 0 Thunderstorm Wind (55MG)

A thunderstorm moved over Brewster County and produced a 63 mph wind gust about one mile southeast of Rio Grande Village as indicated by the Big Bend Portable. Note: The measured wind gust of 55 knots is equivalent to 63 mph.

615 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, West Brewster County Alpine 23 1700CST 1705CST 0 0 Hail (0.75)

A thunderstorm moved over Brewster County and produced penny sized hail in Alpine.

Brewster County 3 WSW Alpine 23 1700CST 1705CST 0 0 Hail (0.88)

A thunderstorm moved over Brewster County and produced nickel sized hail three miles west southwest of Alpine.

Brewster County Alpine 23 1700CST 1720CST 0 0 Heavy Rain

A thunderstorm moved over Brewster County and produced heavy rain in Alpine.

Borden County 17 NE Gail 23 1700CST 1701CST 0 0 Thunderstorm Wind (54MG)

A thunderstorm moved over Borden County and produced a 62 mph wind gust three miles west northwest of Fluvanna.

Note: The measured wind gust of 54 knots is equivalent to 62 mph. Brewster County 16 S Marathon 23 1710CST 1715CST 0 0 Hail (1.75)

A thunderstorm moved over Brewster County and produced golfball sized hail sixteen miles south of Marathon.

Gaines County 3 S Seminole 23 1715CST 1716CST 0 0 Thunderstorm Wind (52MG)

A thunderstorm moved over Gaines County and produced a 60 mph wind gust three miles south of Seminole.

Note: The measured wind gust of 52 knots is equivalent to 60 mph. Scurry County 3 NW Snyder 23 1722CST 1723CST 0 0 Thunderstorm Wind (52EG)

A thunderstorm moved over Scurry County and produced a 60 mph wind gust three miles northwest of Snyder.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Scurry County 3 E Snyder 23 1725CST 1726CST 0 0 Thunderstorm Wind (63MG)

A thunderstorm moved over Scurry County and produced a 73 mph wind gust three miles east of snyder.

Note: The measured wind gust of 63 knots is equivalent to 72 mph. Scurry County 5 ESE Snyder 23 1729CST 1731CST 0 0 1.50K 0.00K Thunderstorm Wind (70EG)

A thunderstorm moved over Scurry County and produced a 70 to 80 mph wind gust five miles east southeast of Snyder. A metal awning for an RV was blown over a stable across a cattle pen along US 180. The cost of damage is a rough estimate.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph.

616 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, West Scurry County 2 SW Snyder 23 1735CST 1736CST 0 0 Thunderstorm Wind (52MG)

A thunderstorm moved over Scurry County and produced a wind gust of 52 knots at the Snyder ASOS.

Note: The measured wind gust of 52 knots is equivalent to 60 mph. Scurry County 1 N Winston 23 1800CST 1 WSW Snyder 1820CST 0 0 3.00K 0.00K Flash Flood

Thunderstorms moved over Scurry County and produced flash flooding in Snyder. Two high water rescues were performed by the Scurry County Fire Department. The cost of damage is a rough estimate.

Mitchell County 2 NNW Buford 23 1800CST 1808CST 0 0 80.00K 0.00K Thunderstorm Wind (78EG)

A thunderstorm moved over Mitchell County and produced strong winds near Buford. The strongest winds were estimated to be 80 to 90 mph. The most intense winds from this event occurred along State Highway 208 from Buford to two miles north northwest of Buford. Three homes sustained damage with loss of roofing materials also reported. A trailer from one of the homes was blown into a neighboring field. Tree branches up to five inches in diameter were broken off trees weakened by the ongoing drought. Eighteen power poles were knocked down or found leaning across State Highway 208 from the damaged homes. The cost of damage is a rough estimate. Note: The estimated wind gust of 78 knots is equivalent to 90 mph.

A thunderstorm moved across Mitchell County with strong winds near Buford. The trailer pictured above was blown into a neighboring field from a house that was damaged. This picture was taken by Melissa Huffman. Scurry County Hermleigh 23 1800CST 1812CST 0 0 2.00K 0.00K Thunderstorm Wind (61EG)

A thunderstorm moved over Scurry County and produced a 60 to 70 mph wind gust in Hermleigh. Multiple tree branches were broken off trees around the city of Hermleigh, and one home had damage from wind-driven hail. The cost of damage is a rough estimate. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Borden County 1 W Gail 23 1805CST 1820CST 0 0 1.00K 0.00K Flash Flood

Thunderstorms moved over Borden County and produced flash flooding in Gail. Creeks were reported to be flooding into local roads. The cost of damage is a rough estimate.

617 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, West Scurry County Hermleigh 23 1810CST 1815CST 0 0 Hail (1.00)

A thunderstorm moved over Scurry County and produced quarter sized hail in Hermleigh.

Mitchell County 7 N Loraine 23 1815CST 1900CST 0 0 Hail (1.00)

A thunderstorm moved over Mitchell County and produced quarter sized hail seven miles north of Loraine.

Borden County 1 W Gail 23 1816CST 1836CST 0 0 1.00K 0.00K Flash Flood

Thunderstorms moved over Borden County and produced flash flooding in Gail. Nearby creeks were flooding into local roads. The cost of damage is a rough estimate. Scurry County 1 SE Winston 23 1830CST 1 SE Snyder Winston Arpt 1850CST 0 0 0.50K 0.00K Flash Flood

Thunderstorms moved over Scurry County and produced flash flooding two miles south of Snyder on Highway 350. The cost of damage is a rough estimate. Howard County 8 SW Big Spring 23 1910CST 1915CST 0 0 Funnel Cloud

A thunderstorm moved over Howard County and produced a funnel cloud eight miles southwest of Big Spring.

Howard County Knott 23 1912CST 1917CST 0 0 Hail (0.88)

A thunderstorm moved over Howard County and produced nickel sized hail in Knott.

Howard County 5 NE Big Spring 23 1930CST 1931CST 0 0 8.00K Thunderstorm Wind (61EG)

A thunderstorm moved over Howard County and produced a 70 mph wind gust five miles northeast of Big Spring. Large power poles were snapped as a result of this wind. The cost of damage is a rough estimate.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Howard County 5 E Big Spring 23 1930CST 1931CST 0 0 0.50K Thunderstorm Wind (61EG)

A thunderstorm moved over Howard County and produced a 70 mph wind gust which uprooted a tree five miles east of Big Spring. The cost of damage is a very rough estimate. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Howard County 2 N South Haven 23 1950CST 2015CST 0 0 2.00K 0.00K Flash Flood

Thunderstorms moved over Howard County and produced flash flooding in Big Spring. The 1300 block of Sixth Street, portions of Third Street, and the intersection of Alamesa and Parkway were all flooded. A taxi cab was reported to be pushed off the road in Big Spring. The cost of damage is a rough estimate.

618 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, West Howard County 1 ESE Big Spring 23 2035CST 2055CST 0 0 Heavy Rain

A thunderstorm moved over Howard County and produced heavy rain over southeast Big Spring.

A dryline was located across the Permian Basin and the Trans Pecos, and a cold front was in the Texas panhandle. Good lower level moisture was present to the east of the dryline, and there was plentiful upper level moisture available. The atmosphere was very unstable. Mid-level lift was present with an upper level disturbance that moved over the area. This combination of moisture, lift, and instability helped to create several severe thunderstorms that produced large hail, damaging winds, and flash flooding across West Texas.

Midland County Midland 25 2202CST 2222CST 0 0 0.00K 0.00K Heavy Rain

A thunderstorm moved over Midland County and produced heavy rain. The intersection of Andrews Highway and Midkiff had standing water from curb to curb. There was ponding of water at an apartment complex parking lot one block south of Andrews Highway.

Ector County 2 NE Greenfield Acres 25 2250CST 2320CST 0 0 0.00K 0.00K Flash Flood

A thunderstorm moved over Ector County and produced flash flooding. Six inches of flowing water was reported at Dixie and 42nd Street as well as Dixie and 44th Street in Odessa. The cost of damage is unknown and is assumed to be zero since no reports were received. An upper level disturbance had moved over the area, and plentiful moisture was present across the Permian Basin. This led to the development of thunderstorms across the Permian Basin which resulted in flash flooding.

Pecos County 14 SSW Imperial 28 1605CST 1610CST 0 0 Hail (0.75)

A thunderstorm moved over Pecos County and produced penny sized hail fourteen miles south southwest of Imperial.

Pecos County 4 E Imperial 28 1642CST 1647CST 0 0 Hail (1.25)

A thunderstorm moved over Pecos County and produced hail up to the size of golfballs six miles southwest of Cordona Lake.

An upper level trough was over Arizona and New Mexico, and it provided lift to West Texas. There was a dryline across the Permian Basin with plentiful low level moisture to the east of this feature. This lift and moisture combined to produce thunderstorms across the Trans Pecos.

TEXAS, Western North

TXZ083>090 Archer - Baylor - Clay - Foard - Hardeman - Knox - Wichita - Wilbarger

01 0000CST 31 2359CST 0 0 Drought

With only a few rainfall events across western north Texas during May, extreme to exceptional drought continued over the region. Wilbarger County 8 ESE Grayback 01 1700CST 0 0 Hail (1.25)

Reported via Nssl Shave Project. Baylor County 4 W Lake Kemp Dam 01 1720CST 0 0 Hail (1.00)

619 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Western North Baylor County 8 ENE Mabelle 01 1800CST 0 0 Hail (1.75)

A strong cold front pushed through the southern Plains during the day. Ahead of the front, thunderstorms developed in an environment of moderate to strong instability and weak deep-layer wind shear. These storms produced several reports of marginally-severe hail. Hardeman County Quanah 09 1800CST 0 0 Hail (1.50)

Moist and unstable air was in place across north Texas ahead of a weak frontal boundary. Several rounds of thunderstorms occurred throughout the afternoon and evening across western north Texas. Most were sub-severe, due to weak deep-layer wind shear, but one yielded a large hail report.

Clay County 3 SSW Vashti 15 1715CST 0 0 Hail (1.75)

Wichita County 2 SW Wichita Falls 15 1850CST 0 0 Hail (1.00)

Quarter size hail. Continued for at least 8 minutes. Wichita County 2 SW Wichita Falls 15 1858CST 0 0 0.00K 0.00K Hail (1.00)

Pea to quarter size hail lasted several minutes. Archer County 6 SSW Windthorst 15 1920CST 0 0 Hail (1.00)

Quarter size hail reported. A few supercells developed over western north Texas during the late afternoon in an environment of moderate instability and moderate vertical shear, producing large hail.

Knox County Goree 18 1922CST 0 0 Hail (1.50)

Wilbarger County 1 S Vernon Wilbarger Arp 18 1935CST 0 0 Thunderstorm Wind (57MG) Note: The measured wind gust of 57 knots is equivalent to 66 mph.

Wilbarger County Odell 18 1956CST 0 0 Hail (1.50)

A classic late Spring severe weather setup unfolded over the southern Plains. Rich low-level moisture and very warm temperatures contributed to high instability, while an incoming shortwave trough yielded deep-layer shear sufficient for supercells during the afternoon. A couple supercells moved northeast over western north Texas during the early evening hours, producing severe hail and wind. Wichita County 1 SW (SPS)Sheppard Afb 20 1320CST 0 0 Hail (1.75)

Wichita County 1 W Wichita Falls 20 1540CST 0 0 Hail (1.75)

Continued for at least 13 minutes. Wichita County 1 W Wichita Falls 20 1553CST 0 0 Hail (1.75)

The hail was reported 5 miles west of Fisher road. No damage information was reported.

620 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Western North Clay County Henrietta 20 1730CST 0 0 Hail (1.00)

A dryline extended from northeast to southwest through far western north Texas. To its east, supercells developed during the late afternoon hours, resulting in large hail.

TXZ085 Wilbarger 23 1755CST 0 0 High Wind Strong outflow winds emanated from the north side a thunderstorm complex moving through the Abilene to Throckmorton region, resulting in severe gusts farther north.

UTAH, East

UTZ022>025-027> Canyonlands/Natural Bridges - Eastern Uinta Basin - Eastern Uinta Mountains - Grand Flat and Arches - 029 La Sal & Abajo Mountains - Southeast Utah - Tavaputs Plateau 01 0000MST 31 2359MST 0 0 0.00K 0.00K Drought

There were some small changes in drought conditions in May, though most areas remained unchanged. A regular series of passing storms kept some precipitation falling across the region. By the end of the month the Uinta Basin had rainfall totals over a third of an inch above normal. The far southeast portion of the state was not as lucky where drought conditions worsened slightly.

UTAH, West and Central

UTZ002 Northern Wasatch Front/Brigham City/Ogden Bountiful 04 2351MST 2356MST 0 0 0.00K 0.00K High Wind

Gusty easterly canyon winds developed along the northern Wasatch Front on the night of May 4, peaking just before midnight before beginning to drop off. Salt Lake County 1 S Bennion 07 1740MST 0 0 0.20K 0.00K Lightning

Lightning struck the top gable of a house in West Jordan; the bolt then traveled about 10 feet and burned part of a satellite dish on the roof of the house. Salt Lake County Salt Lake City Intl 07 1900MST 0 0 5.00K 0.00K Lightning

A plane belonging to the Utah Air National Guard (a KC-135, which is a large plane that provides in-flight refueling for other aircraft) took off from Salt Lake City International Airport on the evening of May 7, and was struck by lightning about 10 minutes after takeoff. The lightning damaged a communications antenna that stretches from the nose to the tail of the aircraft. In addition to knocking out communications, the antenna became loose and hit against the plane repeatedly, damaging the skin of the aircraft. No one was injured in the incident, and the crew was able to use alternate communications to help them return to the airport and land. During an active evening of showers of thunderstorms, damage was reported from two different lightning strikes near Salt Lake City. Tooele County 10 NE Gold Hill 15 1520MST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

The West Salt Flats sensor in the Dugway Proving Ground mesonet recorded a peak wind gust of 61 mph.

Note: The measured wind gust of 53 knots is equivalent to 61 mph. Davis County 9 WSW Syracuse 15 1600MST 0 0 0.00K 0.00K Thunderstorm Wind (59MG)

The Antelope Island State Park sensor recorded a maximum wind gust of 68 mph.

Note: The measured wind gust of 59 knots is equivalent to 68 mph.

621 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

UTAH, West and Central Tooele County 16 SSW Arinosa 15 1930MST 0 0 0.00K 0.00K Thunderstorm Wind (55MG)

The North Salt Flats sensor in the Dugway Proving Ground mesonet recorded a maximum wind gust of 63 mph.

Scattered high-based thunderstorms formed across northern Utah on May 15, primarily bringing gusty microburst winds to the area. The strongest winds with these thunderstorms were recorded across the Great Salt Lake Desert. Note: The measured wind gust of 55 knots is equivalent to 63 mph.

UTZ004 Southern Wasatch Front/Lehi/Provo/Nephi 22 1730MST 0 0 0.00K 0.00K High Wind

UTZ009 Western Unita Mountains 23 1458MST 1758MST 0 0 0.00K 0.00K High Wind

A primarily dry but windy storm system moved through Utah on May 22 and 23, with isolated sites in northern Utah recording severe winds.

VERMONT, North and Central Chittenden County Jericho 21 1942EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Several reports of tree branches and power lines down along Skunk Hollow road due to thunderstorm winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Chittenden County 2 NNE Richmond 21 1945EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

A very large Maple tree with a diameter of several feet and a few smaller trees downed by thunderstorms winds.

On the afternoon and evening of May 21st, a stationary boundary was draped across northern New York into northern Vermont. There was enough low-level instability, as well as disturbances along this boundary to produce thunderstorms during the evening hours in New York with some of these thunderstorms moving into Vermont. One such thunderstorm complex produced isolated wind damage in eastern Chittenden county. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Addison County 1 N Ferrisburg 22 1445EST 0 0 0.00K 0.00K Hail (0.75)

Dime size hail reported. Franklin County Swanton 22 1448EST 0 0 0.00K 0.00K Hail (0.75)

Dime size hail reported. Franklin County 1 NE Highgate 22 1455EST 0 0 0.00K 0.00K Hail (0.75)

Dime size hail reported. Rutland County 1 SW East Hubbardton 22 1520EST 0 1 0.00K 0.00K Lightning

Lightning struck an individual...minor injuries. Chittenden County 2 N Burlington 22 1700EST 1 NNE Essex Jct 1830EST 0 0 50.00K 0.00K Flood

Several low-lying, poor drainage streets were flooded with clogged storm drains from several thunderstorms that traversed Burlington and some northern suburbs for about 90 minutes. Although some flooded basements, all was due to standing water and no washouts.

622 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

VERMONT, North and Central Chittenden County 1 SSW West Bolton 22 1713EST 1715EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

A few trees down on Stage road. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Chittenden County 1 NW Bolton 22 1721EST 1725EST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)

Reports of scattered power lines down from Richmond to Bolton.

On the evening of May 22nd, a stationary boundary remained draped across northern New York and Vermont. There was enough low-level instability, as well as disturbances along this boundary to produce scattered and training thunderstorms during the evening hours in the Champlain Valley that produced some hail and localized urban flooding in poor drainage locations. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Chittenden County 5 NE Underhill Center 23 1800EST 24 0155EST 0 0 1.13M 0.00K Flash Flood

Flash flooding from heavy rainfall washed out roads, culverts, and bridges in Underhill, Jericho, and Essex. Route 15 was closed due to flood waters in Jericho. Roads that were particularly hard hit included Cilley Hill Road, Poker Hill Road, Weed Road, Sleepy Hollow Road, and Pleasant Valley Road.

Chittenden County 3 ESE Underhill Center 23 1935EST 1 S Essex Center 2330EST 0 0 100.00K 0.00K Flash Flood

Flash flooding from heavy rainfall flooded roads in Richmond, including Governor Peck Road and Huntington Road.

Chittenden County 1 S Essex Center 23 1950EST 2 WSW Richmond 2330EST 0 0 50.00K 0.00K Flash Flood

Flash flooding from heavy rainfall flooded roads in Essex, Williston, and Shelburne. Floodwaters inundated and forced the closure of Route 116 in Williston, White Water Circle in Essex, and Bay Road in Shelburne.

Chittenden County 5 NE Underhill Center 23 2116EST 1 ESE Bowman Corners 24 0155EST 0 0 600.00K 0.00K Flash Flood

Flash flooding from heavy rainfall washed out roads, culverts, and bridges in Underhill and Westford. A bridge washout on Route 15 closed the highway between Cowie Road and Seymour Road. Other heavily damaged local roads include North Underhill Station Road, Page Road, Daudelin Road, Osgood Hill Road, and Stony Ridge Road.

Lamoille County 1 SW Cambridge 23 2116EST 2 ENE North Cambridge 24 0155EST 0 0 190.00K 25.00K Flash Flood

Heavy rainfall caused flash flooding in Cambridge Vermont. Routes 108 and 109 were closed by floodwaters...and portions of Upper and Lower Pleasant Valley Roads in Lamoille county were flooded and damaged.

Lamoille County 5 E Eden 23 2242EST 2 N North Wolcott 24 0100EST 0 0 8.00K 0.00K Flash Flood

Flash flooding produced by heavy rainfall from training thunderstorms washed out portions of East Hill, White, Old Deuso, Warren, and Crooks Road in Eden Vermont.

623 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

VERMONT, North and Central Chittenden County 4 NNE North Underhill 24 0155EST 3 N Westford 2300EST 0 0 25.00K 0.00K Flood

Flooding from the previous days flash flood producing rainfall continued across Chittenden County. The Browns River through Underhill, Jericho, and Westford flooded sections of Route 15 and 128.

Lamoille County 28 NNE Monkton Ridge 24 0155EST 2300EST 0 0 10.00K 0.00K Flood

The Lamoille River through Jeffersonville and Cambridge villages flooded as runoff from previous flash flood producing rainfall entered the river. The Lamoille at Jeffersonville river gage rose to its flood stage of 450 feet...and the approaches to the Route 15 Bridge near Cambridge village were flooded.

Orleans County 2 SE Newport 24 0330EST (EFK)Newport Arpt 28 0200EST 0 0 10.00K 0.00K Flood

Runoff from heavy rainfall forced the Barton River into flood. The river crested at 9.32 feet at 00:45 on May 26 2013, flooding local roads along the river. Flood stage is 9 feet. Heavy rainfall from training showers and thunderstorms produced flash flooding across Chittenden and Lamoille Counties in Vermont beginning in the afternoon and evening of May 23. Excessive runoff in the steep terrain of eastern Chittenden and Lamoille counties washed out bridges, culverts, and roads. During the overnight hours the flash flooding transitioned to a flood event as larger rivers such as the Lamoille and Browns river responded to the increased flows.

Chittenden County 1 SW Essex Center 25 1518EST 1 WSW Jericho 2345EST 0 0 5.00K 0.00K Flood

Steady moderate to heavy rainfall renewed flooding along the Browns River in Essex Vermont. The Browns had been in flood on May 23 and 24 from heavy rain and had receded from earlier highs before the additional rainfall caused it to flood Route 128 again.

Lamoille County 1 NNE Belvidere Corners 25 1520EST 2 ENE East Johnson 26 1053EST 0 0 5.00K 0.00K Flood

Heavy rainfall caused water to flood Vermont Route 118 near its junction with Route 109 in Belvidere. The Lamoille River at Jeffersonville also experienced minor flooding, cresting at 450.34 feet at 04:30 am EST on May 26 2013. At 450 feet farmland along the river floods, and water approaches Route 15 near Cambridge VT village.

Orleans County 1 WNW Troy 25 2048EST 26 0551EST 0 0 5.00K 0.00K Flood

Runoff from heavy rainfall caused the Missisquoi River at North Troy VT to flood. The river crested at 9.27 feet at midnight on 26 May 2013, flooding local roads along the river. Flood stage is 9 feet.

An area of low pressure developed on a stalled surface front in southern New England on May 24, and developed into a coastal storm that lasted through May 26. Widespread steady rainfall of one to two inches produced minor flood problems, especially for areas that flooded on May 23. Heavy wet snow fell at elevations above 1200 to 1500 feet, and the combination of snow load and winds of 25 to 35 mph caused power outages. The low pressure moved out of the area on May 26.

624 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

VERMONT, South Bennington County Dorset 21 2114EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A tree was reported down and on wires due to thunderstorm winds on Church Street in Dorset.

A very warm and humid air mass was in place across southern Vermont on Tuesday, May 21st. A slow moving frontal boundary was situated just north of the area across the Saint Lawrence River Valley along the United States-Canadian border. During the day, a wave of low pressure moved along this boundary, allowing the boundary to slowly push southward towards the area. With strong wind shear aloft and plenty of low level moisture in place, thunderstorms developed during the afternoon hours across eastern New York and some of these moved into southern Vermont by evening. Thunderstorms initially formed as single cells and supercells, but eventually organized into several broken lines, which moved from west to east across the area. One of broken lines of thunderstorms that moved across southern Vermont produced gusty winds, which caused damage to trees and power lines in Dorset. As the surface wave of low pressure moved away and with the loss of daytime heating, thunderstorms eventually ended during the late evening hours. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

Bennington County 1 WSW Paper Mill Vlg 22 1518EST 1645EST 0 0 0.00K 0.00K Flash Flood

Heavy rainfall from showers and thunderstorms reportedly caused flash flooding along Route 67A in North Bennington. Law enforcement reported that the road was temporarily closed due to flooding.

As a frontal boundary moved into the region, some areas received heavy rainfall from thunderstorms during the day of Tuesday, May 21st and into the early morning hours on May 22nd. This frontal boundary become stationary across the region for Wednesday, May 22nd. In addition, it was quite warm and humid across much of southern Vermont. As an upper level disturbance moved across upstate New York and into southern Vermont, additional rounds of showers and thunderstorms developed during the afternoon on May 22nd. With the ground saturated from recent rainfall and streams already high, a portion of Bennington County experienced flash flooding, which required road closures. Thunderstorm activity diminished by evening as the upper level disturbance moved away from the area and water levels slowly receded.

Bennington County Bennington 29 1922EST 2121EST 0 0 0.00K 0.00K Flash Flood

Flash flooding was reported as a result of heavy rainfall from thunderstorms in Bennington. South Street (Route 7) was reported to be closed due to flooding on the roadway. Bennington County 1 E Bennington 29 1940EST 2121EST 0 0 0.00K 0.00K Flash Flood

Flash flooding was reported on North Branch Street in Bennington as a result of heavy rainfall from thunderstorms.

During the day on May 29th, a warm front lifted northward across southern Vermont. Although the day began cloudy, some breaks of sun started to occur by afternoon. At the same time, a potent upper level disturbance over Ontario started to approach the region and a strong jet streak was located just to the north. With a moist southerly flow moving into the region at the surface, it became rather humid as well. With all these ingredients coming together, thunderstorms with heavy rainfall developed across upstate New York by mid afternoon and began to spread eastward. The thunderstorms reached southern Vermont by the evening hours. In addition to gusty winds and lightning, these thunderstorms produced extremely heavy rainfall. With the region already rather saturated from repeated thunderstorms over the past week, the additional heavy rainfall that occurred caused flash flooding in some areas. This caused roads to be closed due to being impassable by flowing water. Thunderstorms pushed east of the area by around midnight, ending the threat of heavy rainfall.

625 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

VIRGINIA, East Prince Edward County 1 E Briery 11 1545EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Forty five year old pine tree was downed across a road. Farm buildings were damaged.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Prince Edward County 3 ESE Green Bay 11 1608EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Large tree was downed across a road. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Prince Edward County 1 E Green Bay 11 1615EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Shed was damaged and 300 pound dog pen roof was blown off by winds.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Prince Edward County 1 E Green Bay 11 1617EST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported. Nottoway County 4 WSW Nottoway 11 1630EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Several trees were broken off at the ground downing power lines.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Nottoway County 3 WSW Nottoway 11 1631EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Large tree was downed across East Courthouse Road. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Nottoway County 2 SW Nottoway 11 1636EST 0 0 0.00K 0.00K Hail (1.25)

Half dollar size hail was reported. Dinwiddie County 1 ENE Dinwiddie 11 1735EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Large tree was downed along Route 740 (Turkey Egg Road). Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Chesapeake (c) County 4 WSW St Brides 11 1845EST 0 0 1.00K 1.00K Thunderstorm Wind (50EG)

Two trees were downed with minor crop damage on Ballahack Road.

Scattered severe thunderstorms in advance of a cold front produced damaging winds and large hail across portions of central Virginia. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Hanover County 1 E Gouldin 16 1531EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Trees were downed on Taylor's Creek Road. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. King And Queen County Centerville 16 1710EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Trees were downed on Plainview Lane. Scattered severe thunderstorms in advance of a cold front produced damaging winds across portions of central Virginia. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

626 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

VIRGINIA, East Williamsburg (c) County Williamsburg 23 1645EST 1800EST 0 0 0.00K 0.00K Heavy Rain

Scattered showers and thunderstorms produced rainfall amounts between 3.00 inches and 4.50 inches in a couple of hours across portions of Williamsburg. This rainfall caused minor street flooding at Settler's Market Road in the New Town Community and on Colonial Parkway at the Williamsburg Visitor's Center.

Scattered showers and thunderstorms in advance of a cold front produced heavy rain and minor street flooding across portions of southeast Virginia. York County 1 E Harris Grove 23 1820EST 0 0 0.00K 0.00K Funnel Cloud

Funnel cloud was reported near Goodwin Neck Road, Hornsbyville Road, and Back Creek Road.

Isolated thunderstorm in advance of a cold front produced a funnel cloud across portions of southeast Virginia.

VIRGINIA, Extreme Southwest Russell County Lebanon 19 1558EST 0 0 Thunderstorm Wind (50EG)

Several trees were reported down in Lebanon. Orographics and a slightly to moderately unstable atmosphere appeared to play a role in severe thunderstorms that formed across Southwest Virginia. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Washington County 2 N Damascus 22 0000EST 0100EST 0 0 5.00K 0.00K Flash Flood

Flooding on Rush Creek Road. Water rescues needed for stranded vehicles.

Scott County Nickelsville 22 1618EST 0 0 Thunderstorm Wind (50EG)

Numerous trees were reported down around Nickelsville and Fort Blackmore.

Severe thunderstorms formed along an outflow boundary across the Mid South and moved into the Southern Appalachians during the afternoon and early evening. The result of the early Spring event was mostly wind damage along with some small hail. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

VIRGINIA, North Nelson County 1 NE Norwood 07 1402EST 0 0 0.00K 0.00K Hail (1.00)

Nelson County 1 N Norwood 07 1406EST 0 0 0.00K 0.00K Hail (1.00)

Low pressure tracked north of the Mid Atlantic. Easterly flow transported moisture into the region and surface convergence led to storms that produced heavy rainfall, large hail and damaging winds.

Nelson County 1 NNW Oak Ridge 07 1430EST 1630EST 0 0 0.00K 0.00K Flash Flood

Oak Ridge Road was washed out near Mayswood Lane. Greene County 1 N Standardsville 07 1855EST 2055EST 0 0 0.00K 0.00K Flash Flood

Octonia Road was closed between Madison Road to Pocosan Mountain Road.

627 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

VIRGINIA, North

Low pressure tracked north of the Mid Atlantic. Easterly flow transported moisture into the region and surface convergence led to storms that produced heavy rainfall, large hail and damaging winds.

VAZ025>027-029> Albemarle - Augusta - Culpeper - Greene - Loudoun - Madison - Nelson - Northern Fauquier - Orange - 030-036>040-042- Page - Rappahannock - Rockingham - Shenandoah - Southern Fauquier - Stafford - Warren 050>051-055-501> 502 08 1955EST 09 0900EST 0 0 0.00K 0.00K Dense Fog

VAZ052 Prince William 09 0155EST 0550EST 0 0 0.00K 0.00K Dense Fog

Heavy rain occurred during the day as low pressure moved north of the Mid Atlantic. Low level moisture was in place and breaks in the cloud cover led to fog development overnight.

Highland County 1 WNW Mc Dowell 10 1644EST 0 0 0.00K 0.00K Hail (1.00)

Mountain Oasis on west side of McDowell reported hail. Clarke County 3 SSE Millwood 10 1820EST 0 0 0.00K 1.00K Thunderstorm Wind (52EG)

There were large trees blocking Howellsville Road near the 7500 Block.

Low pressure over the Ohio Valley and an associated cold front approached the mountains. Southerly flow transported moisture into the region. Upper level jet dynamics were stronger across the Ohio Valley. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. VAZ503-504 Eastern Highland - Western Highland 13 0500EST 0730EST 0 0 0.00K 0.00K Frost/Freeze

High pressure moved overhead while cool dry air filtered into the region. Clear skies led to radiational cooling overnight for the western slopes of the Allegheny Front.

14 0200EST 0730EST 0 0 0.00K 0.00K Frost/Freeze

VAZ025>029-031- Augusta - Clarke - Eastern Highland - Frederick - Loudoun - Page - Rockingham - Shenandoah 042-504 14 0200EST 0730EST 0 0 0.00K 0.00K Frost/Freeze

High pressure was overhead for the second consecutive day while cool dry air filtered into the region. Clear skies led to radiational cooling overnight for most of the Mid Atlantic.

Albemarle County 1 NNE Ivy 16 1359EST 0 0 0.00K 0.50K Thunderstorm Wind (52EG)

There was a tree down near 1000 block of Owensville Road. A cold front moved southward through the Central Foothills and stalled. A few upper level disturbances moved over this region as well. Thunderstorms developed near this frontal boundary. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Augusta County 3 ENE Middlebrook 20 1648EST 0 0 0.00K 0.00K Hail (1.00)

628 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

VIRGINIA, North Augusta County 3 ENE Middlebrook 20 1648EST 0 0 0.00K 0.50K Thunderstorm Wind (52EG)

There were large tree limbs snapped from a Maple Tree. A warm front and a upper level disturbance moved through the region where a moist air mass was in place. Greater instability albeit minimal existed in the Central Foothills and thunderstorms did form in this region. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Augusta County 2 SW Mc Kinley 20 1723EST 1923EST 0 0 0.00K 0.00K Flash Flood

A metal culver was washed out at 751 Walker Creek Road. A warm front and a upper level disturbance moved through the region where a moist air mass was in place. Greater instability albeit minimal existed in the Central Foothills and thunderstorms did form in this region.

Frederick County 1 NNE Grimes 22 1638EST 0 0 0.00K 0.50K Thunderstorm Wind (52EG)

There were several four to five inch in diameter tree limbs down.

High pressure over the Atlantic led to southerly flow to transport warm humid conditions in the Mid Atlantic. A trough axis led to the development of thunderstorms across the west of the Blue Ridge. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Frederick County 2 ENE Rock Enon Spgs 22 1650EST 1850EST 0 0 0.00K 0.00K Flash Flood

Back Creek Road was closed due to water running over the road.

High pressure over the Atlantic led to southerly flow to transport warm humid conditions in the Mid Atlantic. A trough axis led to the development of thunderstorms across the west of the Blue Ridge.

Augusta County 1 NNE Piedmont 22 1800EST 0 0 0.00K 1.00K Thunderstorm Wind (52EG)

There were a few trees and large branches down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Augusta County 1 N Mt Meridian 22 1805EST 0 0 0.00K 0.00K Thunderstorm Wind (50ES)

A measured gust of 58 mph occurred at Staunton Airport. Note: The estimated wind speed of 50 knots is equivalent to 58 mph. Page County 1 WSW Comertown 22 1834EST 0 0 0.00K 0.50K Thunderstorm Wind (52EG)

There was a three foot in diameter tree snapped off about eight inches above the ground.

High pressure over the Atlantic led to southerly flow to transport warm humid conditions in the Mid Atlantic. A trough axis led to the development of thunderstorms across the west of the Blue Ridge. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Albemarle County 3 SE Farmington 23 1437EST 0 0 0.50K 0.50K Thunderstorm Wind (52EG)

There was a tree down as well as a transformer on fire. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Shenandoah County 1 NE Strasburg 23 1545EST 0 0 0.00K 0.00K Hail (1.00)

A cold front was approaching from the west. Ahead of it temperatures reached their convective temps and wind speeds increased. Thunderstorms formed along a lee trough.

629 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

VIRGINIA, North VAZ503-504 Eastern Highland - Western Highland 25 0400EST 0730EST 0 0 0.00K 0.00K Frost/Freeze

Canadian high pressure moved over the area. Winds diminished overnight and temperatures dropped below freezing.

Fairfax County 1 NNE Ilda 28 1739EST 0 0 0.00K 2.00K Thunderstorm Wind (52EG)

There were large trees down on Little River Turnpike at Woodburn Road.

A shortwave trough moved north of the region. Organized convection developed near the I-95 corridor where instability was the greatest. Scattered showers and thunderstorms produced large hail, heavy rainfall and damaging winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. VIRGINIA, Northwest Buchanan County 2 NNE Breaks 20 1000EST 3 SW Paw Paw 1230EST 0 0 200.00K 0.00K Flash Flood

Small streams, such as Lynn Camp Creek, Old Home Creek, Jacks Creek, and Stiltner Creek flooded. Water was 1 to 2 feet deep in spots on adjacent roads. The water damaged the roads and the private bridges to residences. Seven homes were damaged. Most of the damage was from water in the basements. One double wide manufactured home was knocked off its foundation from a land slide. Another slide knocked a tree into a carport, damaged the car and the back of the home.

A weak mid level flow existed over a moist lower atmosphere. Slow moving showers, with embedded thunderstorms, developed near dawn over Buchanan County. These showers moved along their northwest to southeast axis, causing repetitive showers over the small streams during the morning. Rain amounts of 2 to 2.5 inches of rain were measured around Grundy in 3 to 4 hours. Radar estimated rain amounts upwards of 3 inches. A few small streams in the mountainous terrain flooded the narrow hollows between the Kentucky border and the Grundy vicinity. The steep terrain also caused some saturated mountainsides to slide into homes.

VIRGINIA, Southwest Bedford County 2 W Gillespie 07 0724EST 0 0 10.00K 0.00K Lightning

Lightning damaged a home on the 1000 block of Glenwood Drive.

Alleghany County 1 SW Clearwater Park 07 1104EST 1304EST 0 0 0.00K 0.00K Flood

Flooding was reported on several roads in Alleghany County, including Highway 220.

Amherst County 2 SSE Lowesville 07 1410EST 1600EST 0 0 0.00K 0.00K Flash Flood

Heavy rain caused Maple Run Creek to overflow its banks and flood Flat Woods Road.

Henry County 1 E Fieldale 07 1450EST 0 0 0.00K 0.00K Hail (1.00)

One inch hail was observed at the Fieldale Cafe on Marshall Way.

630 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

VIRGINIA, Southwest Henry County 1 E Fieldale 07 1454EST 0 0 0.00K 0.00K Hail (0.88)

Henry County 2 NE Figsboro 07 1508EST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported on Route 890 south of Figsboro.

Botetourt County 1 NW Arcadia 07 1800EST 0 0 0.00K 0.00K Flood A blocked culvert caused the pavement on Highway 11 to collapse, closing the road in both directions.

A slow moving upper level low pressure system passed across Virginia during the afternoon and evening. Cooler temperatures aloft associated with the core of the low provided support for hail-producing thunderstorm. In addition, light upper level winds made for slower moving storms, which resulted in flooding in some areas.

Smyth County 2 WSW Marion 10 1540EST 1620EST 0 0 0.00K 0.00K Heavy Rain

Heavy rain over a period of 40 minutes resulted in minor street flooding across parts of the community of Marion.

Montgomery County 1 SSE Walton 10 1649EST 1650EST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

A tree was blown down along Peppers Ferry Road between Jade Drive and Onyx Drive, while another tree was downed near the intersection of Wisteria Drive and Oakwood Court. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Botetourt County 1 WSW Webster 10 1752EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Two trees were blown down near the intersection of Route 460 and Brookfield Lane, with one falling on a power line.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Rockbridge County 1 ESE Lexington 10 1839EST 0 0 5.00K 0.00K Thunderstorm Wind (56EG) 1 NE Buena Vista City A thunderstorm blew several trees and power lines down between the communities of Lexington and Buena Vista.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Buckingham County 2 SW Buckingham 10 2000EST 0 0 3.00K 0.00K Thunderstorm Wind (56EG)

Multiple trees were blown down along Dixie Hill Road. An upper level low pressure system passed across the Appalachian chain, triggering widely scattered strong to severe thunderstorms. Some of these thunderstorms produced locally damaging winds and locally heavy rain which resulted in minor street flooding. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Bedford County 5 S Thaxton 11 1810EST 0 0 1.50K 0.00K Thunderstorm Wind (52EG)

A few trees were blown down by thunderstorm winds on Dickerson Mill Road.

Instability associated with a weak cold front moving across the Appalachian chain trigger widely scattered strong thunderstorms during the afternoon and evening. Instability was marginal due to an abundance of cloud cover, with surface- based CAPE values holding under 1000 J/kg. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

631 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

VIRGINIA, Southwest Smyth County 2 WSW Saltville 19 1530EST 0 0 0.00K 0.00K Hail (1.00)

Tazewell County 1 E Richlands 19 1617EST 2000EST 0 0 0.00K 0.00K Flash Flood

Multiple roads around the Richlands area were closed due to flooding, including Larimer Lane. Heavy rain also caused nearby streams to rise out of their banks. In addition, some roads were closed due to debris, including one debris flow that blocked Highway 460.

Smyth County 1 SW Saltville 19 1659EST 1900EST 0 0 0.00K 0.00K Flash Flood

Flooding was reported across most of the community of Saltville. In particular, Palmer Avenue was closed due to flooding, with flood waters entering the Dollar General Store. Bland County 1 NW Stowersville 19 1840EST 2000EST 0 0 0.00K 0.00K Flood

Clear Fork Creek Road was closed at the Tazewell County line due to flooding.

An upper level low pressure system moved from Kentucky across western Virginia, triggering strong thunderstorms during the afternoon and evening. Southeast winds near the surface associated with a departing high pressure wedge fed Atlantic moisture into the Appalachian Mountains, where marginal instability allowed the thunderstorm activity to develop. Very light upper level winds resulted in slow storm movement and therefore prolonged periods of locally heavy rain in areas where soil conditions were already very moist from rainfall in the preceding days.

Pulaski County Pulaski 22 1315EST 0 0 0.00K 0.00K Hail (1.00)

Bland County Point Pleasant 22 1339EST 0 0 0.00K 0.00K Hail (1.00)

Montgomery County 3 SSE Lafayette 22 1415EST 0 0 0.00K 0.00K Hail (1.00)

Craig County Simmonsville 22 1427EST 0 0 0.00K 0.00K Hail (1.00)

Roanoke County 4 NE Bradshaw 22 1442EST 0 0 0.00K 0.00K Hail (1.00)

Tazewell County 1 N Pisgah 22 1500EST 1 NNW River Jack 1630EST 0 0 0.00K 0.00K Flash Flood

Six inches of water and a significant amount of debris washed onto Baptist Valley Road near the 6600 block, causing the road to be closed. Cabbage Creek flooded Adria Road near Route 636.

Salem (c) County 3 SSE Salem (c) 22 1755EST 1900EST 0 0 0.00K 0.00K Heavy Rain

Four to five inches of water was observed flowing over Cravens Creek Road where it crosses Barnhardt Creek.

Widely scattered strong to severe thunderstorms developed during the afternoon and evening due to strong instability associated with an approaching upper level trough and the associated cold front.

632 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

VIRGINIA, Southwest Henry County 1 SSW Sanville 23 1637EST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

At least a dozen large tree limbs were blown down by thunderstorms winds.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Henry County 1 E Fieldale 23 1707EST 0 0 0.00K 0.00K Hail (0.75)

Henry County 1 SSW Sanville 23 1919EST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorms winds blew down at least a dozen large tree limbs. This is a separate event from another thunderstorm that occurred earlier in the day. Instability ahead of an approaching cold front across the Appalachian chain triggered widely scattered thunderstorms, a few of which reached severe levels. Lifted index values were observed to be in the -4 to -7 range, while CAPE exceeded 1000 J/kg. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

WASHINGTON, Northeast Okanogan County 2 NNW Oroville 10 0000PST 5 SE Oroville Scott Arpt 18 0515PST 0 0 0.00K 0.00K Flood

A National Weather Service employee surveyed the Okanogan River near Tonasket and found pasture fields, and, to a lesser extent, agricultural fields flooded during peak flow. May 10th - May 18th: Temperatures across the area were abnormally warm from May 6th through May 11th with high temperatures in the valleys up into the upper 70s to mid 80s. This was caused by a strong blocking high pressure system that established itself over the region. The warm temperatures melted high level snow pack across British Columbia, which resulted in substantial rises to the Okanogan River through the middle portions of May. Flooding was observed along the river from Oroville to Okanogan in the Okanogan Valley.

WASHINGTON, Northwest King County Auburn 13 1200PST 1700PST 0 0 25.00K 0.00K Thunderstorm Wind (39EG)

A tree and power lines fell across cars in a parking lot at Green River Community College in Auburn. Classes were canceled for the rest of the day due to a power outage. Note: The estimated wind gust of 39 knots is equivalent to 45 mph. Kitsap County Silverdale 13 1200PST 1700PST 0 1 30.00K 0.00K Thunderstorm Wind (35EG)

In Silverdale, a tree crashed onto a home injuring the occupant. There were power outages on other parts of the Kitsap peninsula. Note: The estimated wind gust of 35 knots is equivalent to 40 mph. Pierce County Edgewood 13 1200PST 1700PST 0 0 30.00K 0.00K Thunderstorm Wind (39MG)

Thunderstorm winds knocked down trees which caused local power outages and damage. In Edgewood a tree fell on a home.

Thunderstorms caused local damage and power outages. Note: The measured wind gust of 39 knots is equivalent to 45 mph.

633 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WASHINGTON, Southeast Yakima County 1 WNW Brace 07 0015PST 15 1430PST 0 0 0.00K 0.00K Flood

Extreme heat lead to a prolonged period of snow-melt along the Cascades. This allowed the Naches River near Naches to rise above flood stage for several days. Flood stage for the Naches River is 16 feet, and the river crested at 16.82 feet on May 12th.

Kittitas County 2 WNW Nelson 09 1436PST 14 0600PST 0 0 0.00K 0.00K Flood

Water flowed over roads to a depth of 6-10 inches in the vicinity of Heron Drive and Nighthawk Lane as well as flowing around several houses on Morning Dove Lane. Areas of standing water due to the rise of the water table.

WAZ521 Simcoe Highlands 22 0500PST 1800PST 0 0 0.00K 0.00K Heavy Snow

The town of Bickleton around 2000ft in elevation was hammered with over a foot of snow in about a 12 hour period. A low pressure system centered over the Lower Columbia Basin would continue to circulate mostly rain showers across the forecast area. However the Bickleton area was cold enough to receive show showers for several hours amounting to reports of 12 to 18 inches of snow by the afternoon of May 22nd. Local schools were cancelled due to the heavy snow. Power outages were reported between 530AM and noon that day as well.

WEST VIRGINIA, East

WVZ505-506 Eastern Pendleton - Western Pendleton 13 0500EST 0730EST 0 0 0.00K 0.00K Frost/Freeze

High pressure moved overhead while cool dry air filtered into the region. Clear skies led to radiational cooling overnight for the western slopes of the Allegheny Front.

WVZ050>053-055- Berkeley - Eastern Grant - Eastern Mineral - Eastern Pendleton - Hampshire - Hardy - Jefferson - 501>506 Morgan - Western Grant - Western Mineral - Western Pendleton 14 0200EST 0730EST 0 0 0.00K 0.00K Frost/Freeze

High pressure was overhead for the second consecutive day while cool dry air filtered into the region. Clear skies led to radiational cooling overnight for most of the Mid Atlantic.

Mineral County 1 SSE Claysville 22 1443EST 0 0 0.00K 0.50K Thunderstorm Wind (52EG)

There was a tree down at the intersection of Rt 50 and 93. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mineral County 1 N Keyser 22 1455EST 0 0 0.00K 0.50K Thunderstorm Wind (52EG)

There was a tree down at the intersection of South Mineral Street and Fort Ave.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Morgan County 1 E Berkeley Spgs 22 1627EST 0 0 0.00K 0.00K Hail (1.00)

Morgan County 1 WNW Fair View 22 1630EST 0 0 0.00K 0.00K Hail (1.00)

634 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WEST VIRGINIA, East Jefferson County Charles Town 22 1700EST 0 0 1.00K 0.50K Thunderstorm Wind (52EG)

There was a large tree limb down at East 5th and South Reymann on wires.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Berkeley County 3 SSE Hedgesville 22 1731EST 0 0 0.00K 1.00K Thunderstorm Wind (52EG)

A willow tree was uprooted and a large tree broke in half. High pressure over the Atlantic led to southerly flow to transport warm humid conditions in the Mid Atlantic. A trough axis led to the development of thunderstorms across the west of the Blue Ridge. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Hampshire County 2 SE Little Cacapon 23 1638EST 0 0 0.00K 0.50K Thunderstorm Wind (52EG)

There was a tree down on the 7100 block of Paw Paw Road. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Morgan County Berkeley Spgs 23 1750EST 0 0 0.00K 0.50K Thunderstorm Wind (52EG)

There were two trees down along River Road and Sugar Hollow Road.

A cold front was approaching from the west. Ahead of it temperatures reached their convective temps and wind speeds increased. Thunderstorms formed along a lee trough. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

WVZ501-503-505- Eastern Pendleton - Western Grant - Western Mineral - Western Pendleton 506 25 0400EST 0730EST 0 0 0.00K 0.00K Frost/Freeze

Canadian high pressure moved over the area. Winds diminished overnight and temperatures dropped below freezing.

WEST VIRGINIA, North Ohio County 1 SW (HLG)Ohio Co Arpt Wh 21 1948EST 0 0 0.00K Hail (1.00)

Ohio County 1 S (HLG)Ohio Co Arpt Wh 21 1949EST 0 0 0.00K Thunderstorm Wind (52MG)

Scattered showers and thunderstorms developed in the evening along a weak outflow boundary. Isolated severe thunderstorms developed across the West Virginia panhandle and Washington county, Pennsylvania. Note: The measured wind gust of 52 knots is equivalent to 60 mph. Ohio County 1 ENE Wheeling 23 1609EST 0 0 0.00K 0.00K Hail (0.88)

An upper level disturbance produced scattered afternoon thunderstorms and small hail.

WEST VIRGINIA, Southeast Greenbrier County 1 N White Sulphur Spgs 07 1130EST 1730EST 0 0 0.00K 0.00K Flood

Heavy rain caused flooding on several low water crossings across the county.

Greenbrier County 2 W Harts Run 07 1545EST 2145EST 0 0 0.00K 0.00K Flood

The Interstate 64 exit ramp at mile marker 175 is closed due to water over the road.

635 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WEST VIRGINIA, Southeast

A slow moving upper level low pressure system passed across Virginia during the afternoon and evening. With light upper level winds, widespread showers and thunderstorms were slow moving, and resulted in flooding in some areas.

WEST VIRGINIA, West Cabell County 2 ESE Huntington 10 1315EST 1 W Guyandotte 1317EST 0 0 50.00K 0.00K Thunderstorm Wind (40EG)

A partially rotten tree fell onto a vehicle on 12th Avenue causing significant damage. Another tree fell near the Guyandotte boat ramp and damaged 3 vehicles. Well ahead of an approaching cold front in lower Ohio Valley, fast moving showers and thunderstorms streaked into western West Virginia from eastern Kentucky and southeast Ohio during the afternoon. Maximum wind gusts of 40 to 50 mph were on the leading edge of the largest cluster of convection. Note: The estimated wind gust of 40 knots is equivalent to 46 mph.

Mcdowell County Bartley 20 1115EST 1230EST 0 0 5.00K 0.00K Flash Flood

Rains of around an inch over saturated ground caused minor flash flooding. Water was over low spots along roads. The road along Cow Hollow near Bartley was closed. Slow moving convection during the early evening of the 19th dumped 1 to 2.5 inches of rain over a small area along the Dry Fork between Bradshaw and English. A weak mid level flow existed over a moist lower atmosphere. Slow moving showers, with embedded thunderstorms, redeveloped after dawn on the 20th over McDowell County. These showers moved along their northwest to southeast axis, causing repetitive showers over the small streams during the mid and late morning.

Mingo County 1 W Puritan Mines 21 1835EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

A few trees were blown down. One tree fell on Route 52. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Mingo County 1 ESE Breeden 21 1840EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

A few trees were blown down. One tree fell fell on Route 3/5.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lincoln County Harts 21 1855EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Multiple trees and large branches were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lincoln County Ranger 21 1908EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Multiple trees and large branches were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lincoln County Alkol 21 1927EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Multiple trees and large branches were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lincoln County Griffithsville 21 1930EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Multiple trees and large branches were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

636 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WEST VIRGINIA, West Lincoln County Hamlin 21 1930EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Multiple trees and large branches were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Putnam County Scott Depot 21 1945EST 0 0 5.00K 0.00K Thunderstorm Wind (39EG) 1 WSW Mt Vernon Wind gusts near 45 mph caused electric power outages. Note: The estimated wind gust of 39 knots is equivalent to 45 mph. Kanawha County Charleston 21 1950EST 1955EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

A few trees fell down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Kanawha County St Albans 21 1955EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Several trees and large branches blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Kanawha County 1 WNW Etowah 21 2001EST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Six to 8 healthy trees were blown down just west of the Interstate 77 and 79 split.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Kanawha County Sissonville 21 2006EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

A few large trees were blown down. A long lived convective complex originated on the 20th across the southern Plains. The complex moved across Tennessee and Kentucky during the day on the 21st, reaching western West Virginia during that evening. Wind gusts of 40 to 50 mph were common on the leading edge of the convection, with smaller areas receiving severe wind gusts and tree damage. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

Putnam County Mt Vernon 22 1430EST 1432EST 0 2 125.00K 0.00K Thunderstorm Wind (65EG)

A microburst occurred in a mobile home park near Marina Park and into a housing development near Marina Drive. The peak wind gust was estimated around 75 mph. Several large trees were uprooted or blown down. Two mobile homes were destroyed by fallen trees with 5 others damaged. A vehicle was turned on its side by an uprooted tree. Another vehicle was damaged by a fallen tree. Two residents were taken to the hospital with minor injures and later released. A small private cemetery had 2 toppled trees. The exposed root systems dislodged several headstones.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Roane County Clover 22 1530EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

A few trees were blown down. Strong heating occurred in a moist and unstable environment, well ahead of an approaching cold front in the lower Ohio Valley. Thunderstorms developed in West Virginia during the afternoon. A few storms pulsed briefly to severe limits. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Kanawha County 1 WSW Alumville 23 1339EST 0 1 0.00K 0.00K Lightning

An adult male was outside when a bolt of lightning indirectly hit his leg after traveling across some concrete. He was taken to the hospital and stayed overnight for observation.

637 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WEST VIRGINIA, West Kanawha County 1 WNW Alumville 23 1339EST 0 1 0.00K 0.00K Lightning

A person was struck on Wolfpen Lane, but refused any treatment.

More scattered showers and thunderstorms formed ahead of a cold front.

WISCONSIN, Northeast Portage County Plover 30 1315CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds downed six small trees and knocked out power in Plover. The storms also produced pea size hail.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Waupaca County Iola 30 1358CST 0 0 0.00K 0.00K Hail (0.75)

Thunderstorms near Iola produced penny size hail and a measured wind gust of 56 mph.

Shawano County 2 NE Aniwa 30 1400CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds downed trees near Maple Road and U.S. Highway 45.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Langlade County Antigo 30 1410CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds downed power lines in Antigo. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Langlade County Deerbrook 30 1415CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds downed a tree and tore the steel roof from an out building.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Calumet County High Cliff 30 1435CST 0 0 0.00K 0.00K Thunderstorm Wind (61MG)

Thunderstorm winds snapped a birch tree at High Cliff State Park.

Note: The measured wind gust of 61 knots is equivalent to 70 mph. Langlade County Bryant 30 1441CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Thunderstorm winds downed numerous trees along and near Highway 52 around Bryant.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Forest County 1 S Crandon 30 1445CST 0 0 0.00K Thunderstorm Wind (61EG)

Thunderstorm winds downed trees and knocked out power in Crandon.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Vilas County 1 ESE Eagle River 30 1500CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds downed large trees along Wall Street and knocked out power in Eagle River.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

638 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WISCONSIN, Northeast Shawano County Tigerton 30 1630CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)

A spotter in Tigerton measured a thunderstorm wind gust of 60 mph.

Note: The measured wind gust of 52 knots is equivalent to 60 mph. Waupaca County 7 ESE Symco 30 1835CST 0 0 75.00K 0.00K Thunderstorm Wind (61EG)

A thunderstorm produced high winds that blew down two storage sheds just outside Bear Creek in Waupaca County. More than a dozen farming machines were in one of the sheds; many sustained damage.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Waupaca County Embarrass 30 1906CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds downed trees around Embarrass. Time of event is estimated. Reports of downed trees were received by law enforcement between 7:06 PM and 7:22 PM CST. Thunderstorms developed in unstable air as upper level disturbances passed across the area. Some of the storms became severe, producing damaging winds and hail up to penny size. Thunderstorm winds downed numerous trees and power lines across central and north central Wisconsin, blew down storage sheds near Bear Creek (Waupaca Co.), and tore the roof from an outbuilding in Deerbrook (Langlade Co.). Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

Oneida County 1 SE Lake Tomahawk 31 1735CST 0 0 0.00K 0.00K Hail (1.00)

Thunderstorms produced quarter size hail near Lake Tomahawk.

Oneida County Rhinelander 31 1758CST 0 0 0.00K 0.00K Hail (1.00)

Thunderstorms produced quarter size hail at Rhinelander. Oneida County 3 NNE Rhinelander 31 1802CST 0 0 0.00K 0.00K Hail (1.75)

Thunderstorms produced golf ball size hail on County Highway W northeast of Rhinelander.

Thunderstorms developed in moist and unstable air ahead of an approaching front. Some of the storms produced large hail and strong wind gusts. The largest hail fell in Oneida County, where quarter to golf ball size hail fell in the Rhinelander area and quarter size hail fell near Lake Tomahawk.

WISCONSIN, Northwest

WIZ004-007-008 Iron - Sawyer - Washburn 01 1800CST 03 1200CST 0 0 Heavy Snow

WIZ002-003 Ashland - Bayfield 02 0200CST 03 1200CST 0 0 Heavy Snow

An unusually late and strong winter storm brought a narrow band of heavy snow of up to about 20 inches to parts of northwest Wisconsin. The main band of over 14 inches of snow stretched from about Rochester, MN to Ashland, WI. Storm reports included 18 inches near Clam Lake, 18 inches near Mellen, 17.4 inches near Ashland, 17.3 inches near Saxon, 15.4 inches near Upson, 14.2 inches near Hayward, 13 inches near Odanah, and 10.3 inches near Bayfield.

639 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WISCONSIN, Southeast Dane County 2 NW Roxbury 14 1900CST 3 SE Marshall 1922CST 0 0 100.00K Thunderstorm Wind (65EG)

Firefighters reported numerous trees, power lines and some power poles downed by thunderstorm wind gusts, estimated at 75 mph (65 knots), along a 5-mile wide path from 2 miles northwest of Roxbury to 2.5 miles east of Marshall. An old barn was completely blown down; a shed was moved 4 feet off of it's foundation; and roof shingles, siding and downspouts were torn off of a couple of homes in the village of Dane. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Jefferson County 2 S Waterloo 14 1920CST 3 E Ixonia 1940CST 0 0 100.00K Thunderstorm Wind (65EG)

The public reported numerous trees and power lines downed by thunderstorm wind gusts estimated at 75 mph (65 knots). The damage, in a 6-mile wide swath from 2 miles south of Waterloo to 2.5 miles east of Ixonia, included the destruction of a large pole barn, which had 4-inch by 4-inch support posts ripped out of the ground by the winds. Other homes, barns and sheds were reported to be damaged by the severe thunderstorm wind gusts.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Dodge County 2 N Portland 14 1923CST 3 E Ashippun 1938CST 0 0 10.00K Thunderstorm Wind (61EG)

Newspaper articles indicated numerous trees and power lines downed by thunderstorm wind gusts, estimated at 70 mph (61 knots) along a path from 2 miles north of Portland to 3 miles east of Ashippun.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Waukesha County 2 W Oconomowoc 14 1940CST 1 E Elm Grove 2000CST 0 0 30.00K Thunderstorm Wind (59MG)

Law enforcement officials reported numerous trees and power lines downed by thunderstorm wind gusts, measured by a trained spotter at 68 mph (59 knots). The damage was reported along an 8-mile wide swath from 1.5 miles west of Oconomowoc to 1 mile east of Elm Grove. Note: The measured wind gust of 59 knots is equivalent to 68 mph. Milwaukee County 2 W Wauwatosa 14 2002CST Cudahy 2025CST 0 0 50.00K Thunderstorm Wind (61EG)

A trained spotter reported numerous trees and power lines downed by thunderstorm wind gusts estimated up to 70 mph (61 knots) along a path from 2 miles west of Wauwatosa to just east of Cudahy. A downed power line sparked a house fire 3 miles southwest of downtown Milwaukee. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Rock County 3 WNW Clinton 14 2055CST 2115CST 0 0 10.00K Thunderstorm Wind (61EG)

Law enforcement officials indicated numerous trees and power lines downed by thunderstorm wind gusts, estimated at 70 mph (61 knots), along a path from 3 miles west-northwest of Clinton to 3 miles southeast of Clinton.

Several lines of severe thunderstorms crossed southern Wisconsin during the evening hours of May 14th. The storms produced damaging wind gusts up to 70 to 75 mph (60 to 65 knots). Widespread damage was reported in swaths up to 6 miles in width, which included structural damage to homes and farm buildings as well as downed trees and power lines due to the powerful winds. WE Energies reported 23,000 customers in Dodge, Jefferson, Waukesha and Milwaukee counties were without power at the height of the storm. The severe thunderstorms formed along a warm front that extended from weak low pressure in northwest Wisconsin south of Superior to near Chicago. While wind shear and instability were marginal, evaporative cooling as the rain fell into dry air in the lower levels produced prime conditions for downbursts. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

640 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WISCONSIN, Southeast Lafayette County South Wayne 19 1329CST 0 0 5.00K Thunderstorm Wind (56EG)

Law enforcement officials reported trees downed by thunderstorm wind gusts estimated at 65 mph (56 knots) at the intersection of State Highway 11 and County Road D in South Wayne. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Green County 4 NNW Jordan 19 1338CST 0 0 12.00K Thunderstorm Wind (51MG) Monroe Airport Law enforcement officials reported trees, power lines and power poles downed by thunderstorm wind gusts measured at 59 mph (51 knots) at the Monroe airport (KEFT) along a path from 3 miles east-northeast of Argyle to Monroe.

Note: The measured wind gust of 51 knots is equivalent to 59 mph. Rock County Evansville 19 1403CST 0 0 5.00K Thunderstorm Wind (52EG)

Law enforcement officials reported a few trees, tree branches and power lines downed by thunderstorm wind gusts estimated at 60 mph (52 knots). Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Dane County Downtown Madison 19 1415CST 1425CST 0 0 30.00K Thunderstorm Wind (56EG)

Law enforcement officials reported 10 trees downed by thunderstorm wind gusts estimated at 65 mph (56 knots) at the Wisconsin State Capital. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Dane County Sun Prairie 19 1420CST 0 0 3.00K Thunderstorm Wind (52EG)

A trained spotter reported thunderstorm wind gusts estimated at 60 mph (52 knots) in Sun Prairie.

A cluster of severe thunderstorms brought damaging winds across much of South Central Wisconsin during the afternoon of May 19th. The wind gusts, between 60 mph and 75 mph (52 knots to 65 knots), blew down numerous trees and power lines. The severe thunderstorms developed on the nose of a strengthening low-level jet ahead of the first of a series of short-wave troughs/impulses lifting through the western Great Lakes region on the eastern side of a deep upper-level trough over the Dakotas. The low-level winds brought in an unstable air mass, with surface-based CAPE of 1000 to 1300 J/kg, with 0-6km shear of 35 to 40 knots supporting sustained updrafts and rotating storms. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Rock County Afton 19 2000CST 5 E Beloit 2005CST 0 0 50.00K Thunderstorm Wind (65EG)

Law enforcement officials reported many trees and power lines downed by powerful thunderstorm winds that gusted to an estimated 75 mph (65 knots) along a path from 5 miles east of Beloit to Afton. One tree went through the roof of a home 3 miles northwest of Beloit. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Rock County Orfordville 19 2005CST 0 0 20.00K Thunderstorm Wind (65EG)

Rock County Highway Department workers reported the intersection of State Highway 11 and State Highway 213 in Orfordville was closed due to trees and power lines downed by powerful thunderstorm winds that gusted to an estimated 75 mph (65 knots). Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Sauk County Lone Rock Airport 19 2337CST 0 0 Thunderstorm Wind (52MG)

The Lone Rock Airport (KLNR) ASOS recorded a thunderstorm wind gust of 60 mph (52 knots).

Note: The measured wind gust of 52 knots is equivalent to 60 mph.

641 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WISCONSIN, Southeast Iowa County 3 NNE Clyde 19 2340CST 0 0 10.00K Thunderstorm Wind (56EG)

A trained spotter reported trees downed by powerful thunderstorm winds that gusted to an estimated 65 mph (56 knots) about 3 miles south-southwest of Lone Rock. One of the downed trees blocked State Highway 130 for a time.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Sauk County Spring Green 19 2345CST 2350CST 0 0 40.00K Thunderstorm Wind (56EG)

Law enforcement officials reported trees downed by powerful thunderstorm winds that gusted to an estimated 65 mph (56 knots) in Spring Green. One building was damaged by a falling tree.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Sauk County Reedsburg 19 2356CST 3 W Lake Delton 20 0005CST 0 0 10.00K Thunderstorm Wind (56EG)

Law enforcement officials reported trees downed by powerful thunderstorm winds that gusted to an estimated 65 mph (56 knots) along a path from Reedsburg to 3 miles wesdt of Lake Delton.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Columbia County Lodi 20 0014CST 0 0 Thunderstorm Wind (52MG)

A mesonet site located at Lodi Middle School recorded a 60 mph (52 knot) thunderstorm wind gust.

Note: The measured wind gust of 52 knots is equivalent to 60 mph. Marquette County 1 NE Oxford 20 0031CST 2 S Westfield 0037CST 0 0 10.00K Thunderstorm Wind (56EG)

Law enforcement officials reported trees and power lines downed by powerful thunderstorm winds that gusted to an estimated 65 mph (56 knots) along a path from 1 mile northeast of Oxford to 2 miles south of Westfield.

Several lines of severe thunderstorms with damaging winds affected South Central Wisconsin during the late evening hours of May 19th, lasting into the early morning hours of May 20th. Some structural damage occurred, with many trees and power lines downed by winds that were sustained for 10 to 20 minutes at a time up to 44 mph (38 knots), and gusting to 60 mph (52 knots). The lines of severe storms were moving around 40 knots (46 mph) driven a by a 50-60 knot low-level jet ahead of one of a series of a short-wave impulses that crossed the region. The combination of actual storm speed and the momentum transfer of the strong low-level jet winds being brought down to the surface with the storm precipitation produced the damaging wind gusts. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Waukesha County 1 SW Mukwonago 28 2005CST 0 0 Hail (1.25)

The public reported hail up to 1.25 inches in diameter about 1 mile southwest of Mukwonago.

A line of thunderstorms moved east across southern Wisconsin during the evening hours of May 28th. The storms produced large hail in southern Waukesha County. A surface low developed northeastward into the Upper Great Lakes along a warm front that was moving northward through the region. A broad southwesterly low-level jet brought increasingly moist boundary layer air into the region that impinged on the warm front, providing the forcing that triggered the line of thunderstorms.

Iowa County 4 SW Avoca 29 1748CST 0 0 60.00K Thunderstorm Wind (70EG) Trained spotters reported several homes with roof damage and several outbuildings on farms damaged by powerful thunderstorm wind gusts that were estimated at 80 mph (70 knots). The damaging winds also downed many trees and power lines along the path that extended from 4 miles southwest of Avoca to Avoca.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph.

642 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WISCONSIN, Southeast Sauk County 5 W Hillpt 29 1805CST 8 E Baraboo 1835CST 0 0 40.00K Thunderstorm Wind (61EG)

The Sauk County 911 center received reports of tree and power line damage in a 10-mile wide swath from 5 miles west of Hill Point to 8 miles east of Baraboo due to powerful thunderstorm wind gusts that were estimated at 70 mph (61 knots). A shed was blown down on Coon Bluff Road northwest of Baraboo. The line of thunderstorms produced a gustnado 7 miles east of Baraboo, however only some minor tree damage was reported with the gustnado.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Sauk County Plain 29 1830CST 0 0 20.00K Thunderstorm Wind (56EG)

The Sauk County 911 center received a report of damage to a building in Plain due to thunderstorm wind gusts that were estimated at 65 mph (56 knots). A line of severe thunderstorms moved into Iowa and Sauk counties during the early evening hours of May 29th, with damaging wind gusts estimated up to 80 mph (70 knots) knocking down trees and power lines as well as causing roof damage to several homes and structural damage to outbuildings on a few farms. The line of severe storms had developed to the west of Wisconsin during the day, ahead of a mesoscale convective vorticity maximum. The increased southerly low-level flow ahead of this wave drew warm, moist and unstable air into the region that converged over western Wisconsin, with lift aided by the upper divergence associated with the exit region of an upper-level jet. The line weakened as it moved east into cooler and more stable air over eastern portions of the state. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

Dane County Token Creek 30 1222CST 0 0 Hail (1.00)

The public reported hail measured to 1 inch in diameter in Token Creek.

Dodge County 3 SE Randolph 30 1308CST 0 0 12.00K Thunderstorm Wind (56EG)

Law enforcement officials reported trees downed by thunderstorm wind gusts estimated at 65 mph (56 knots) 3 miles southeast of Randolph. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Dodge County Randolph 30 1308CST 0 0 12.00K Thunderstorm Wind (56EG)

Law enforcement officials reported trees downed by thunderstorm wind gusts estimated at 65 mph (56 knots) in Randolph.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Fond Du Lac County Rosendale 30 1335CST 0 0 30.00K Thunderstorm Wind (56EG)

Law enforcement officials reported trees downed by thunderstorm wind gusts estimated at 65 mph (56 knots) across the Village of Rosendale. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Lafayette County 3 WSW Yellowstone Lake Stat 30 1423CST 0 0 5.00K Thunderstorm Wind (43EG)

Law enforcement officials reported a tree blown down onto a power line by a thunderstorm wind estimated at 50 mph (43 knots) 3 miles west-southwest of Yellowstone Lake Park. Note: The estimated wind gust of 43 knots is equivalent to 49 mph. Sauk County Hillpt 30 1432CST 0 0 12.00K Thunderstorm Wind (56EG)

Law enforcement officials reported trees blown down by thunderstorm wind gusts estimated at 65 mph (56 knots) in the Hill Point area. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

643 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WISCONSIN, Southeast Columbia County 2 S Columbus 30 1700CST Fall River 1710CST 0 0 20.00K Thunderstorm Wind (56EG)

Law enforcement officials reported trees two feet in diameter blown down by thunderstorm wind gusts estimated at 65 mph (56 knots) along a path from 2 miles south of Columbus to Fall River.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Green County 5 SSE Browntown 30 1728CST Dayton 1755CST 0 0 30.00K Thunderstorm Wind (56EG)

Law enforcement officials reported trees and power lines blown down by thunderstorm wind gusts estimated at 65 mph (56 knots) along a 15 mile-wide path from 5 miles south-southeast of Browntown to Dayton.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Green County 5 SSW Juda 30 1734CST Albany 1750CST 0 0 10.00K Thunderstorm Wind (56EG)

Law enforcement officials reported trees and power lines blown down by thunderstorm wind gusts estimated at 65 mph (56 knots) along a 5 mile-wide swath from 5 miles south-southwest of Juda to Albany. A mesonet site along the path measured a 60 mph (52 knot) wind gust. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Rock County 5 W Orfordville 30 1748CST 0 0 5.00K Thunderstorm Wind (56EG)

Law enforcement officials reported a few trees and power lines blown down by thunderstorm wind gusts estimated at 65 mph (56 knots) 5 miles west of Orfordville. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Dane County Middleton 30 1810CST 0 0 75.00K Thunderstorm Wind (56EG)

Madison TV 27 reported numerous trees and power lines blown down by thunderstorm wind gusts estimated at 65 mph (56 knots) in Middleton. Some cars were damaged by the downed trees, as well as a tree piercing the roof of a condominium. A shed was also destroyed by the damaging thunderstorm wind gusts.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Rock County Edgerton 30 1812CST 0 0 5.00K Thunderstorm Wind (56EG)

Law enforcement officials reported eight trees and two power lines blown down by thunderstorm wind gusts estimated at 65 mph (56 knots) in Edgerton. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Dane County 7 SW Downtown Madison 30 1815CST 0 0 5.00K Thunderstorm Wind (52EG)

A trained spotter reported several large tree branches in excess of 6 inches in diameter downed by thunderstorm wind gusts estimated at 60 mph (52 knots) 7 miles southwest of the State Capitol in Madison. A couple power-lines were snapped by the tree debris. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Rock County Newark 30 1815CST 0 0 5.00K Thunderstorm Wind (56EG)

Law enforcement officials reported a few trees and power lines downed by thunderstorm wind gusts estimated at 65 mph (56 knots) in Newark. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

644 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WISCONSIN, Southeast Dane County 1 WNW (MSN)Truax Fld Madi 30 1824CST 0 0 50.00K Thunderstorm Wind (56EG)

A newspaper article reported 23 trees and numerous power-lines blown down by thunderstorm wind gusts estimated at 65 mph (56 knots) about 1 mile west-northwest of Dane County Regional Airport. Some cars and homes were also damaged by the downed trees. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Dane County 3 W Cottage Grove 30 1830CST 0 0 10.00K Thunderstorm Wind (56EG)

The public reported trees and power lines downed by thunderstorm wind gusts estimated at 65 mph (56 knots) 3 miles west of Cottage Grove. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Walworth County Delavan 30 1847CST 1850CST 0 0 100.00K Thunderstorm Wind (61EG)

Law enforcement officials reported 20 buildings were damaged and around 40 trees and numerous power lines downed by a thunderstorm microburst with wind gusts estimated at 70 mph (61 knots) along a 2 mile-long, 1/4 to 1/2 mile-wide path through the City of Delavan. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Dodge County 2 NW Beaver Dam Arpt 30 1906CST 0 0 20.00K Thunderstorm Wind (61EG) Beaver Dam The Dodge County Emergency Manager reported the roof of a barn was blown off, and trees in a cemetery on County Highway G downed by thunderstorm wind gusts estimated at 70 mph (61 knots) along a path from about 2 miles west of Beaver Dam into Beaver Dam. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Dodge County Mayville 30 1938CST Brownsville 1950CST 0 0 5.00K Thunderstorm Wind (61EG)

Law enforcement officials reported a few trees and power lines downed by thunderstorm wind gusts estimated at 70 mph (61 knots) along a path from Mayville to Brownsville. Individual severe thunderstorms that developed over South Central Wisconsin, producing hail up to 1 inch in diameter, merged into several squall lines that produced damaging wind gusts as they moved east through Southeast Wisconsin during the afternoon and evening hours of May 30th. Overall forcing for ascent over the region was provided by differential vorticity advection ahead of a progressive 500 mb negatively-tilted trough, with the storms developing on the nose of a moderate to strong low-level jet ahead of the wave. Moderate instability, reflected in mixed-layer CAPE values of 1000 to 1200 J/kg, and favorable wind shear contributed to conditions that produced broken bands of thunderstorms with damaging wind gusts and downbursts. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

WISCONSIN, Southwest Jackson County 4 SSW Melrose 01 0000CST 16 1500CST 0 0 0.00K 0.00K Flood

Stetzer Road in the Town of Melrose was closed starting in April until May 16th due to flooding and high water on the Black River and Germann Valley Creek. Jackson County 2 W Fall Hall Glen 01 0000CST 09 1500CST 0 0 0.00K 0.00K Flood

Hawk Island Road in the Town of Manchester was closed starting in April until May 9th due to flooding and high water on the Black River. Township roads across Jackson County that were covered with flood waters starting in April, opened up by the middle of May as the waters receded.

WIZ032 Buffalo 02 0100CST 2100CST 0 0 0.00K 0.00K Heavy Snow

645 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WISCONSIN, Southwest

A narrow but intense band of snow set up across portions of western Wisconsin during the evening hours of May 1st and continued into the 2nd. Amounts of 3 to 8 inches were reported across Buffalo County with 6 inches or more common across the northern half of the county. The highest reported total was 8.3 inches west of Mondovi (Buffalo County).

Buffalo County 3 SE Cochrane 19 1649CST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)

Trees and power lines were blown down south of Cochrane. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Buffalo County Gilmanton 19 1715CST 0 0 12.00K 0.00K Thunderstorm Wind (50EG)

Around a dozen power poles were blown down in Gilmanton. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Trempealeau County Eleva 19 1735CST 0 0 0.00K 0.00K Hail (1.00)

One inch hail and wind gusts to 50 mph were reported in Eleva.

Vernon County 1 W Westby 19 2145CST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)

Trees were blown down across U.S. Highway 14/61 in Westby. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Grant County 1 E Lancaster 19 2246CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down in Lancaster. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Grant County 2 ENE Tennyson 19 2250CST 0 0 0.00K 0.00K Hail (1.75)

Golf ball sized hail fell east of Potosi. Richland County 1 SW (LNR)Tri Co Arpt Lon 19 2337CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts of 60 mph occurred in the vicinity of the Lone Rock airport.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Trempealeau County 2 W Pine Creek 22 0315CST 24 2000CST 0 0 0.00K 0.00K Flood

Runoff from heavy rains pushed the Trempealeau River out of its banks at Dodge. The river crested over a foot above the flood stage at 10.34 feet. Several rounds of thunderstorms rolled across western Wisconsin during the afternoon and evening of May 19th. The first round of storms produced wind damage across Buffalo County during the afternoon. The second round of storms in the evening produced additional severe wind gusts in Vernon, Grant and Richland Counties. The most significant damage occurred in Gilmanton (Buffalo County) were a dozen power poles were blown down.

Grant County 1 NE Muscoda 22 1551CST 0 0 0.00K 0.00K Funnel Cloud

Funnel clouds were sighted near Muscoda. Richland County Richland Arpt 22 1922CST 0 0 0.00K 0.00K Funnel Cloud

Funnel clouds were sighted near Richland Center. Numerous funnel clouds were sighted across southwest Wisconsin during the afternoon and early evening of May 22nd. None of these funnels touched down and occurred with showers and thunderstorms that developed along a slow moving trough of low pressure.

646 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WISCONSIN, Southwest Trempealeau County 1 ESE Tamarack 29 1500CST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)

Trees were blown down near County Road F south of Arcadia. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Trempealeau County 1 S Whitehall 29 1516CST 0 0 0.00K 0.00K Hail (0.88)

Trempealeau County 1 S Whitehall 29 1516CST 0 0 25.00K 0.00K Thunderstorm Wind (50EG)

Just south of Whitehall, a pole barn was blown down, other large structures were damaged and numerous tree limbs were blown onto the highway. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. La Crosse County 1 NNW Herrington 29 1535CST 2128CST 0 0 0.00K 0.00K Heavy Rain

Southeast of the city of La Crosse, 2.3 inches of rain fell.

Jackson County Merrillan 29 1551CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell in Merrillan. La Crosse County West Salem 29 1620CST 1735CST 0 0 0.00K 0.00K Heavy Rain

In West Salem, 1.79 inches of rain fell in 45 minutes. La Crosse County West Salem 29 1620CST 2210CST 0 0 0.00K 0.00K Heavy Rain

In West Salem, a total of 2.69 inches of rain fell. La Crosse County 2 E La Crosse 29 1624CST 1830CST 0 0 0.00K 0.00K Flood

Heavy rain caused street flooding to occur in the city of La Crosse and also caused some manhole covers to pop off.

La Crosse County 1 N Barre Mills 29 1627CST 0 0 0.00K 0.00K Hail (0.75)

Crawford County 1 SE Prairie Du Chien 29 1647CST 0 0 3.00K 0.00K Thunderstorm Wind (55EG)

Trees and power lines were blown down in Prairie du Chien. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Grant County 1 WNW Bagley 29 1651CST 1 SE Wyalusing 1654CST 1.56 10 0 0 0.00K 0.00K Tornado (EF0)

A small tornado crossed the Mississippi River from Clayton County going through a campground north of Bagley before dissipating. Grant County 1 E Mt Hope 29 1710CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A 60 mph wind gust occurred in Mt. Hope. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

647 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WISCONSIN, Southwest Crawford County 1 S Mt Sterling 29 1711CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

A 58 mph wind gust occurred in Mt. Sterling. Note: The measured wind gust of 50 knots is equivalent to 58 mph. Vernon County 1 SSE Viroqua 29 1730CST 0 0 4.00K 0.00K Thunderstorm Wind (50EG)

Buildings and trees were damaged along County Road SS southeast of Viroqua. Another shed near Viroqua was also damaged.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Grant County 2 SW Muscoda 29 1735CST 0 0 0.00K 0.00K Funnel Cloud

A funnel cloud was sighted southwest of Muscoda. Richland County 1 S Richland Center 29 1752CST 1753CST 0 0 5.00K 0.00K Thunderstorm Wind (55EG)

South of Richland Center, buildings and trees were damaged. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Juneau County 1 E Wonewoc 29 1819CST 0 0 3.00K 0.00K Thunderstorm Wind (55EG)

Trees and power lines were blown down in Wonewoc. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Juneau County 3 S South Necedah 29 1838CST 0 0 0.00K 0.00K Thunderstorm Wind (56MG)

A wind gust of 65 mph occurred south of Necedah. Note: The measured wind gust of 56 knots is equivalent to 64 mph. Adams County 5 WSW Big Spg 29 1848CST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)

Trees were blown down along County Road G and State Highway 23 southeast of Plainville.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Grant County 1 NE Bagley 29 2136CST 2330CST 0 0 0.00K 0.00K Flash Flood

Heavy rain caused water to spread over several roads in Bagley as the drainage system was not able to keep up the rain. Streams in the area were running very high. A small tornado crossed the Mississippi River from Iowa hitting a campground just north of Bagley (Grant County). This tornado was part of a larger severe weather outbreak that occurred across much of western Wisconsin during the afternoon and evening of May 29th. These storms developed in a warm and moist airmass behind a warm front that was moving north across the Upper Midwest. In addition to the tornado, a pole barn and other structures were damaged near Whitehall (Trempealeau County) and structural damage to buildings also occurred near Richland Center (Richland County).

Jackson County 2 E Vaudreuil 30 1245CST 31 2100CST 0 0 0.00K 0.00K Flood

Runoff from heavy rains pushed the Black River out of its banks in Black River Falls. The river crested over two feet above the flood stage at 49.31 feet. Grant County 1 SSE Lancaster 30 1343CST 0 0 0.00K 0.00K Thunderstorm Wind (61MG)

A wind gust of 70 mph occurred just south of Lancaster. Note: The measured wind gust of 61 knots is equivalent to 70 mph.

648 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WISCONSIN, Southwest Richland County 3 ENE Orion 30 1417CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down west of Gotham near the Grant County line.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Adams County 4 NW Big Flats 30 1456CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

Trees and power lines were blown down west of Big Flats. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Adams County 1 N Adams 30 1516CST 0 0 3.00K 0.00K Thunderstorm Wind (55EG)

Trees and power lines were blown down in Adams. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Adams County 5 ENE White Creek 30 1527CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

Trees and power lines were blown down southwest of Grand Marsh.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Crawford County 6 S Eastman 30 1655CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

An estimated wind gust of 60 mph occurred south of Eastman. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Vernon County 1 SE Bud 30 1725CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

An estimated wind gust of 65 mph occurred west of Viroqua. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. La Crosse County 2 SE West La Crosse 30 1746CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down in the city of La Crosse. For the second straight day, thunderstorms developed during the afternoon across western Wisconsin. Some of these storms produced damaging winds from central Grant County northeast into Adams County. A wind gust of 70 mph occurred near Lancaster (Grant County). Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Buffalo County 1 SE Fountain City 31 1501CST 0 0 0.00K 0.00K Hail (0.88)

Buffalo County 6 N Fountain City 31 1506CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell north of Fountain City. Trempealeau County 1 W Eleva 31 1509CST 0 0 0.00K 0.00K Hail (0.88)

Nickel sized hail and a 55 mph wind gust occurred just outside of Eleva.

Trempealeau County Strum 31 1528CST 0 0 0.00K 0.00K Hail (0.88)

Trempealeau County 1 E Arcadia Arpt 31 1530CST 0 0 0.00K 0.00K Hail (1.25)

Half dollar sized hail fell south of Independence.

649 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WISCONSIN, Southwest Trempealeau County 1 N Independence 31 1531CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell in Independence. Trempealeau County 3 SSE Elk Creek 31 1536CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell northeast of Independence. Taylor County 7 E Perkinstown 31 1629CST 0 0 0.00K 0.00K Hail (0.88)

Taylor County 4 E Perkinstown 31 1631CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell east of Perkinstown. Buffalo County 7 ESE Waumandee 31 1829CST 0 0 0.00K 0.00K Hail (0.88)

Trempealeau County 2 SW Arcadia Arpt 31 1838CST 0 0 0.00K 0.00K Hail (0.88)

Trempealeau County Whitehall 31 1854CST 0 0 0.00K 0.00K Hail (0.75)

Trempealeau County 1 ESE Pigeon Falls 31 1911CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell in Pigeon Falls. Jackson County 2 NW Merrillan 31 1944CST 0 0 0.00K 0.00K Funnel Cloud

A funnel cloud was spotted northwest of Merrillan. Multiple rounds of thunderstorms moved across western Wisconsin during the afternoon and evening of May 31st. These storms developed in a complex surface pattern across the Upper Midwest as a pre-frontal surface trough, dry line and cold front all passed through the area. The storms primarily produced large hail, although a funnel cloud was sighted near Merrillan (Jackson County). The largest hail reported was half dollar sized near Independence (Trempealeau County).

WISCONSIN, West

WIZ014>016-023> Barron - Dunn - Pepin - Pierce - Polk - Rusk - St. Croix 026 01 1700CST 02 1500CST 0 0 50.0K 0.00K Winter Storm

WIZ027-028 Chippewa - Eau Claire 02 0600CST 1500CST 0 0 0.00K 0.00K Winter Storm

A very unusual snow event unfolded across portions of south central and east central Minnesota, as well as west central Wisconsin on the evening of Wednesday, May 1st. Snowfall amounts topped over a foot of snow, with locally 12 to 15 inches in a small band near River Falls, Baldwin, Rice Lake and Ladysmith, Wisconsin, by the time the snow tapered off early Thursday afternoon, May 2nd. This system was highly unusual due to the fact that May snowfall amounts average less than an inch. A strong Canadian air mass for early May allowed for critical temperatures to lower enough to produce snow across south central and east central Minnesota during the late afternoon and early evening of Wednesday May 1st. Areas around Chippewa Falls, and Eau Clairie, Wisconsin, were warmer initially, which kept this area in a mixture of sleet and rain, before changing over to all snow by Thursday morning, May 2nd. A strong surge of moisture from the gulf interacted with the cold air mass to produce very heavy snowfall from Wednesday evening, through Thursday morning, before tapering off after 12 pm. Snowfall rates were as high as 1-2 inches per hour during the height of the storm. The following are some of the higher snowfall totals, ending Thursday afternoon, May 2nd.

650 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WISCONSIN, West

Near Ladysmith 15.0 inches Rice Lake 14.0 inches. Weyerhaeuser 14.0 inches. River Falls 13.0 inches. Baldwin 12.0 inches. Jim Falls 11.4 inches. Durand 10.5 inches. Both Ladysmith, and River Falls, broke the 24 hour, calendar day state record of 12.0 inches for the most snowfall in May. Both these sites beat the previous Wisconsin state daily record in May of 10.9 inches.

Due to the heavy snowfall and high liquid water content, large tree branches broke off and caused damage to power lines, along with numerous power outages. Highland Ridge Campground at the Eau Galle Dam and Recreation Site, located in Spring Valley, Wisconsin, had excessive storm damage due to the extremely wet, and heavy snowfall. Pierce County 3 NE Beldenville 19 1620CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A few trees were blown down north of Ellsworth, Wisconsin. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. St. Croix County 1 NW Baldwin 19 1640CST 1642CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)

Two barns were damaged, shingles were blown off four houses, along with several small trees uprooted between Baldwin and Hammond, Wisconsin. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. St. Croix County 3 ESE New Richmond Arpt 19 1655CST 3 WNW Cylon 1657CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Several power lines were blown down between New Richmond and Deer Park along Highway 64.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Polk County Clear Lake 19 1700CST 1702CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A large tree fell in Clear Lake. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Polk County 2 SE Amery 19 1705CST 1707CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Several trees were uprooted around Amery, Wisconsin. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Polk County Clayton 19 1708CST 1710CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several trees were blown down around Clayton, Wisconsin. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Eau Claire County 1 S Fall Creek 19 1755CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Large tree branches were blown down near Fall Creek, Wisconsin.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Chippewa County 3 W Bateman 19 1803CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

A large tree fell on a home and caused significant damage to the roof and electronic gear on the upper floor.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

651 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WISCONSIN, West Chippewa County 1 N Bateman 19 1805CST 3 NW Cadott 1808CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

There was a swath of trees uprooted from County Hwy K to the Village of Cadott.

Thunderstorms began to develop across south central Minnesota during the afternoon of Sunday, May 19th. These storms started to accelerate northward near Owatonna, southeast to Blooming Prairie where the first report of damage was reported northwest of the town. As these storms started to accelerate to the north-northeast, several bow-echo type thunderstorm structures moved across east central Minnesota, and into west central Wisconsin during the early evening. Reports of 60 mph winds, trees blown down, damaged barns and power outages occurred from two lines of storms. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Eau Claire County 1 NE Altoona 29 1544CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A large tree was blown down east of Eau Claire. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Eau Claire County 1 NE Fairchild 29 1550CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A large tree was blown down in Fairchild, Wisconsin. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Eau Claire County 4 SSW Altoona 29 1555CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A few trees were blown down southwest of Altoona, near Highway 93, and Golf Road.

A complex of thunderstorms that developed across southeast Minnesota, moved quickly northeast into west central Wisconsin, and produced damaging wind gusts from near Eau Claire, to Fairchild, Wisconsin. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Pepin County Durand 31 1412CST 0 0 0.00K 0.00K Hail (1.00)

Dunn County 4 SE Downsville 31 1430CST 0 0 0.00K 0.00K Hail (1.00)

Eau Claire County 4 N Brackett 31 1523CST 0 0 0.00K 0.00K Hail (1.00)

St. Croix County 2 SW Woodville 31 1611CST 0 0 0.00K 0.00K Hail (1.75)

Golf Ball size hail was reported at mile marker 19 on Interstate 94.

Eau Claire County 3 WNW Fairchild 31 1614CST 0 0 0.00K 0.00K Hail (1.25)

Barron County 2 E Reeve 31 1618CST 0 0 0.00K 0.00K Hail (0.88)

Barron County 1 SE Turtle Lake 31 1618CST 0 0 0.00K 0.00K Hail (0.88)

Polk County 1 S Clayton 31 1625CST 0 0 0.00K 0.00K Hail (0.88)

652 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WISCONSIN, West Dunn County 5 SSW Boyceville 31 1652CST 0 0 0.00K 0.00K Hail (1.50)

Dunn County 3 SW Ridgeland 31 1653CST 0 0 0.00K 0.00K Hail (0.88)

Dunn County 2 SSE Boyceville 31 1703CST 0 0 0.00K 0.00K Hail (1.75)

Dunn County 2 N Menomonie 31 1713CST 0 0 0.00K 0.00K Hail (1.00)

Dunn County Colfax 31 1736CST 0 0 0.00K 0.00K Hail (0.88)

Chippewa County 4 W Bloomer 31 1800CST 0 0 0.00K 0.00K Hail (1.00)

Eau Claire County 1 W Eau Claire 31 1811CST 0 0 0.00K 0.00K Hail (0.88)

Chippewa County Bloomer 31 1814CST 0 0 0.00K 0.00K Hail (0.88)

Chippewa County Chippewa Falls 31 1819CST 0 0 0.00K 0.00K Hail (0.75)

Pepin County Durand 31 2048CST 0 0 0.00K 0.00K Hail (0.75)

Numerous thunderstorms developed during the afternoon of Friday, May 31st along the Wisconsin, Minnesota border. These storms quickly became severe, producing large hail across the region. The hail continued during the late afternoon and early evening hours before the loss of daytime heating stabilized the atmosphere.

WYOMING, Central and West

WYZ018-026 Lander Foothills - Upper Green River Basin 01 0000MST 0900MST 0 0 0.00K 0.00K Winter Storm

Snow began April 30 and continued into May 1 in the Lander Foothills and western portions of the Green River Basin. Total snowfall topped-out around one foot in the Lander Foothills. A narrow band of snow developed over the western Green River Basin and produced around one foot of snow in Big Piney and Marbleton. Most of this snow fell in about a six hour period. The beginning of this event is contained in April 2013 Storm Data.

Fremont County (RIW)Riverton Rgnl A 16 1210MST 1211MST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)

Wind gusts of 60 and 62 mph were reported at the Riverton Regional Airport ASOS from the gust front ahead of a line of thunderstorms. A line of thunderstorms developed over the Wind River Range and moved east across central Fremont County. A peak wind gust of 62 mph was reported at Riverton Regional Airport with the gust front ahead of the thunderstorms. Note: The measured wind gust of 54 knots is equivalent to 62 mph. Washakie County 12 W Worland 17 1422MST 0 0 0.00K 0.00K Funnel Cloud

A funnel cloud was observed 12 miles west of Worland.

653 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WYOMING, Central and West Washakie County 1 SE Winchester 17 1427MST 1434MST 0 0 0.00K 0.00K Hail (1.00)

A trained spotter reported hail the size of quarters covering the ground.

Washakie County 4 W Durkee 17 1438MST 1443MST 0 0 0.00K 0.00K Funnel Cloud

A trained spotter reported several funnel clouds as well as a rotating wall cloud north of Worland.

Johnson County 2 ESE Sussex 17 1449MST 1457MST 0 0 0.00K 0.00K Hail (0.75)

Three-quarter inch diameter hail fell at a ranch near Sussex.

Big Horn County 2 NE Hyattville 17 1515MST 0 0 0.00K 0.00K Funnel Cloud

A spotter posted a photo on Facebook of a funnel cloud as seen looking east from Hyattville.

Big Horn County 6 NE Hyattville 17 1530MST 1630MST 0 0 25.00K 0.00K Flash Flood

Heavy rain from thunderstorms brought flash flooding to the Medicine Lodge State Archaeological Site. Debris covered the main road leading into the park in several spots, occasionally to a depth of one to two feet. At least six campsites in the park were damaged when normally dry arroyos to the east of the park swept water and debris across them before emptying into Medicine Lodge Creek. One camper was damaged as mud and rock flowed against its sides. Rainfall estimates ranged from 0.50 inches to 1.25 inches in about 30 minutes. A line of thunderstorms developed over the southern Big Horn Basin and become severe as they progressed to the northeast. Hail was reported in multiple locations. The largest hail was quarter sized and was observed in Winchester. Several funnel clouds were reported in Washakie County with a rotating wall cloud reported north of Worland. Heavy rain in and on the steep slopes just east of Medicine Lodge State Archaeological Site resulted in flash flooding in that park. One main road and six campsites were damaged as a result.

Johnson County Linch 18 1412MST 1418MST 0 0 0.00K 0.00K Hail (1.00)

A trained spotter reported quarter sized hail in Linch. A thunderstorm developed over northern Natrona County and become severe over eastern Johnson County. The largest hail fell in Linch. Park County 2 WSW Cody 23 1600MST 1608MST 0 0 0.00K 0.00K Hail (0.88)

Nickel sized hail was reported by a CoCoRaHs observer on the west side of Cody.

Thunderstorms developed over the Absaroka Range and moved north across the Cody Foothills. One strong storm produced hail in and around Cody. Big Horn County 1 SSW Byron 23 2131MST 2137MST 0 0 0.00K 0.00K Hail (1.00)

One inch diameter hail was reported in Byron.

654 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WYOMING, Central and West Big Horn County Cowley 23 2139MST 2143MST 0 0 0.00K 0.00K Hail (0.75)

A trained spotter reported penny sized hail in Cowley. A thunderstorm rapidly developed over far eastern Park County and become severe over western Big Horn County. Hail of penny to quarter size was reported in a swath from around Byron north to Cowley.

Johnson County 3 NNE Kaycee 26 1814MST 1820MST 0 0 2.00K 0.00K Hail (1.00)

One inch diameter hail was reported about 3 miles north-northeast of Kaycee. The hail broke out windows in an antique car.

Johnson County 28 ESE Buffalo 26 1826MST 1831MST 0 0 0.00K 0.00K Hail (1.50)

The public reported ping pong ball sized hail at the Powder River Rest Stop off of Interstate 90.

Johnson County 3 NNE Kaycee 26 1928MST 1932MST 0 0 0.00K 0.00K Hail (1.00)

A trained spotter reported a second round of quarter sized hail north of Kaycee.

Abundant low-level moisture coupled with an unstable atmosphere and an approaching jet streak produced several severe thunderstorms over Johnson County on the evening of the 26th. The hardest hit areas were just north of Kaycee and along Interstate 90 near the crossing of the Powder River. The largest stones fell near the Powder River Rest Area where 1.5 inch diameter hail was reported. Park County 12 N Meeteetse 27 1000MST 1018MST 6.27 20 0 0 0.00K 0.00K Tornado (EF0)

The Park County Sheriffs Office reported a weak tornado east of State Highway 120 between Cody and Meeteetse, and north of the Greybull River. The tornado was seen and photographed from several vantage points as it traveled east-northeast near the Y -U Bench.

Johnson County 2 ESE Sussex 27 1215MST 0 0 0.00K 0.00K Hail (0.88)

Nickel sized hail was observed at a ranch near Sussex. Washakie County 10 NW Ten Sleep Arpt 27 1235MST 0 0 0.00K 0.00K Hail (1.00)

Hail up to one inch in diameter fell at a ranch 9 miles northwest of Ten Sleep.

Severe thunderstorms developed before noon in a favorable environment over north-central Wyoming. The storms eventually developed farther to the east on either side of the Bighorn Mountains. One storm spawned a weak tornado over open country in eastern Park County. Another storm eventually produced large hail near Ten Sleep, while smaller hail fell in southern Johnson County.

WYZ008 Bighorn Mountains West 30 0100MST 31 2200MST 0 0 15.0K 0.00K Heavy Snow

A persistent, moist, north-northwest flow aloft brought heavy snow to the northern Bighorn Mountains, especially above about 8500 feet. Two day snowfall amounts ranged from 2 to 3 feet in the vicinity of Bald Mountain near US Highway 14A. The snow toppled trees and caused damage to trailers located at a lodge.

WYZ010 Northeast Johnson County 31 0845MST 2138MST 0 0 0.00K 0.00K High Wind

655 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WYOMING, Central and West

A strong pressure gradient swept strong northwest winds across northern Johnson County on May 31. An automated sensor along Interstate 90 east of Buffalo had several wind gusts past 58 mph with a maximum gust of 65 mph. The ASOS at the Johnson County Airport in Buffalo topped-out at 61 mph and a nearby sensor reached 59 mph.

WYOMING, North Central

WYZ099 Sheridan Foothills 23 0239MST 0500MST 0 0 0.00K 0.00K High Wind

A surface low pressure across Wyoming produced a very tight pressure gradient across Southeast Montana and North Central Wyoming which resulted in very strong winds.

Sheridan County 1 W Story 26 1353MST 0 0 0.00K 0.00K Hail (1.75)

Sheridan County 1 W Story 26 1409MST 0 0 0.00K 0.00K Hail (1.75)

Sheridan County 1 W Story 26 1437MST 0 0 0.00K 0.00K Hail (1.75)

Sheridan County 1 W Story 26 1450MST 0 0 0.00K 0.00K Hail (1.75)

Sheridan County 1 NNE Banner 26 1525MST 0 0 0.00K 0.00K Hail (2.50)

Sheridan County 2 SSE Big Horn 26 1635MST 0 0 0.00K 0.00K Hail (1.00)

Sheridan County 3 WNW Wakeley 26 1650MST 0 0 0.00K 0.00K Hail (1.50)

Sheridan County 1 W Story 26 1928MST 0 0 0.00K 0.00K Hail (1.00)

Moderate instability and sufficient vertical shear resulted in the development of severe thunderstorms across portions of the Billings Forecast Area during the afternoon and evening hours of the 26th.

Sheridan County 1 NW Sheridan 27 1300MST 1315MST 0 0 0.00K 0.00K Hail (1.00)

Numerous reports of hail ranging in size from pea to quarter were received in and around the Sheridan area.

Sheridan County 1 SW Story 27 1333MST 0 0 Thunderstorm Wind (61EG)

A thunderstorm wind gust around 70 mph resulted in about 8 trees either toppled or broken in the Story area.

A thunderstorm that moved across the Sheridan Foothills produced some large hail and damaging winds. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

WYZ099 Sheridan Foothills 30 1000MST 31 1900MST 0 0 0.00K 0.00K High Wind

A strong surface low across Northeastern Wyoming produced a very tight pressure gradient and high winds across Sheridan County.

656 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WYOMING, Northeast Campbell County 7 W Savageton 17 1445MST 0 0 0.00K 0.00K Hail (0.88)

Campbell County 16 NNW Savageton 17 1456MST 0 0 0.00K 0.00K Hail (0.88)

A thunderstorm developed over southwestern Campbell County and produced nickel size hail northwest of Savageton.

Campbell County 7 N Gillette 17 1520MST 0 0 0.00K 0.00K Hail (1.00)

A severe thunderstorm developed west of Gillette and tracked northeastward across northern Campbell and Crook Counties. The storm produced quarter size hail north of Gillette. It strengthened over Crook County and produced tennis ball size hail around Devils Tower, which damaged automobiles.

Campbell County 14 SW Gillette 17 1545MST 0 0 0.00K 0.00K Hail (1.25)

Campbell County 5 SE Gillette 17 1620MST 0 0 0.00K 0.00K Hail (1.00)

A severe thunderstorm developed southwest of Gillette and tracked northeast across central Campbell County. The storm produced hail to half dollar size before weakening as it moved into Crook County.

Crook County Devils Tower 17 1715MST 0 0 200.00K 0.00K Hail (1.75)

Crook County 3 SSE Devils Tower 17 1718MST 0 0 0.00K 0.00K Hail (2.50)

Crook County 7 SW Aladdin 17 1815MST 0 0 0.00K 0.00K Hail (1.25)

A severe thunderstorm developed west of Gillette and tracked northeastward across northern Campbell and Crook Counties. The storm produced quarter size hail north of Gillette. It strengthened over Crook County and produced tennis ball size hail around Devils Tower, which damaged automobiles.

Crook County 10 S Sundance 17 1855MST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm quickly became severe over southern Crook County and produced hail the size of quarters south of Sundance.

Weston County 6 WNW Clareton 17 1945MST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail covered the ground. Weston County 2 SSW Four Corners 17 2030MST 0 0 0.00K 0.00K Hail (1.00)

A line of severe thunderstorms developed over western Weston County and moved eastward. The storms produced hail to quarter size and gusty winds across much of the county.

Weston County 10 WSW Upton 18 1625MST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm developed over northwestern Weston County and strengthened as it crossed northern portions of the county, producing quarter size hail west of Upton.

Weston County 5 NNW Osage 18 1718MST 1722MST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm over central Weston County briefly became severe as it moved across the Osage area.

657 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WYOMING, Northeast WYZ054>057 Northern Campbell - South Campbell - Western Crook - Wyoming Black Hills

23 1100MST 0100MST 0 0 145.0K 0.00K High Wind

A tight pressure gradient developed across northeastern Wyoming as low pressure strengthened to the west. Strong south to southwest winds developed over the area during the afternoon and evening, producing wind gusts of 60 to 80 mph across the northeastern Wyoming plains. Campbell County 8 NW Rockypoint 25 1550MST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm briefly became severe over far northeastern Campbell County and produced quarter size hail near the Montana border. Weston County 9 WNW Four Corners 25 1555MST 0 0 0.00K 0.00K Hail (0.88)

Weston County 6 W Four Corners 25 1555MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts were estimated at 60 mph. A thunderstorm briefly became severe as it tracked across Weston County. The storm produced hail and wind gusts to 60 mph over northeastern portions of the county. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

Campbell County 7 N Gillette 26 1545MST 0 0 0.00K 0.00K Hail (1.00)

A severe thunderstorm developed in the Gillette area and remained nearly stationary for a time, then tracked very slowly northward. The storm produced hail up half dollar size and heavy rain over northern Campbell County.

Campbell County 13 SSE Echeta 26 1605MST 0 0 0.00K 0.00K Hail (1.00)

Campbell County 7 SSE Echeta 26 1608MST 0 0 0.00K 0.00K Hail (1.50)

A severe thunderstorm developed just south of Echeta and tracked slowly northward across northwestern Campbell County. The storm produced large hail at times from the Echeta area to the Montana border.

Campbell County 3 N (GCC)Gillette Arpt 26 1656MST 0 0 0.00K 0.00K Hail (1.25)

A severe thunderstorm developed in the Gillette area and remained nearly stationary for a time, then tracked very slowly northward. The storm produced hail up half dollar size and heavy rain over northern Campbell County.

Campbell County 11 W Recluse 26 1658MST 0 0 0.00K 0.00K Hail (1.00)

Campbell County 11 WNW Recluse 26 1710MST 0 0 0.00K 0.00K Hail (1.00)

Campbell County 11 WNW Recluse 26 1730MST 0 0 0.00K 0.00K Hail (1.00)

A severe thunderstorm developed just south of Echeta and tracked slowly northward across northwestern Campbell County. The storm produced large hail at times from the Echeta area to the Montana border.

Campbell County 7 SSE Echeta 26 1737MST 0 0 0.00K 0.00K Hail (1.00)

A second severe thunderstorm developed in the Echeta area and tracked slowly north-northeast across northern Campbell County. The storm produced quarter size hail from Echeta to south and east of Recluse. The training of thunderstorms with heavy rain caused areas of flash flooding northwest of Gillette.

658 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WYOMING, Northeast Campbell County 1 E Weston 26 1800MST 0 0 0.00K 0.00K Hail (1.00)

A severe thunderstorm developed in the Gillette area and remained nearly stationary for a time, then tracked very slowly northward. The storm produced hail up half dollar size and heavy rain over northern Campbell County.

Campbell County 4 NW Echeta 26 1850MST 0 0 0.00K 0.00K Hail (1.00)

Campbell County 5 SSE Echeta 26 1930MST 6 NW (GCC)Gillette Arpt 2100MST 0 0 25.00K 0.00K Flash Flood

Water ponded along the Burlington-Santa Fe railroad tracks ten miles northwest of Gillette. The heavy rain left ruts in some gravel roads. Campbell County 12 NE Echeta 26 1947MST 0 0 0.00K 0.00K Hail (1.00)

Campbell County 9 S Recluse 26 2005MST 0 0 0.00K 0.00K Hail (1.00)

A second severe thunderstorm developed in the Echeta area and tracked slowly north-northeast across northern Campbell County. The storm produced quarter size hail from Echeta to south and east of Recluse. The training of thunderstorms with heavy rain caused areas of flash flooding northwest of Gillette.

Crook County 6 N Moorcroft 26 2200MST 0 0 0.00K 0.00K Hail (1.00)

A severe thunderstorm developed over east central Campbell County and moved northeastward into western Crook County. The storm produced quarter sized hail west of Keyhole Reservoir.

Weston County Upton 27 1455MST 1513MST 0 0 0.00K 0.00K Hail (1.25)

Weston County 4 SE Upton 27 1518MST 1520MST 0 0 0.00K 0.00K Hail (2.00)

A thunderstorm briefly became severe over the Upton area and produced hail larger than golf ball size.

Weston County Newcastle 27 1545MST 0 0 500.00K 0.00K Hail (1.75)

A thunderstorm briefly became severe over Newcastle and produced hail to golf ball size.

Crook County 9 NNW New Haven 31 0700MST 7 SE Devils Tower 2359MST 0 0 60.00K 0.00K Flood

Several creeks and streams across Crook County flooded. The Belle Fourche River near Alva reached a stage of 7.5 feet, which is three feet above flood stage. A strong upper level system moved across the region, bringing significant rainfall to the Bear Lodge Mountains. Four to five inches of rain fell in about 24 hours. Runoff caused smaller creeks to overflow and minor flooding along the Belle Fourche River. Several county roads were closed or washed out and culverts were damaged.

659 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WYOMING, Southeast WYZ106-115>119 Central Laramie County - Central Laramie Range And Southwest Platte County - East Laramie County - Laramie Valley - South Laramie Range - South Laramie Range Foothills 01 0000MST 1400MST 0 0 0.00K 0.00K Winter Storm

A low pressure system moved across Colorado and produced heavy snowfall over portions of southeast Wyoming. Storm total accumulations ranged from 6 to 20 inches, highest over the southern Laramie Range.

WYZ110 North Snowy Range Foothills 22 2050MST 2055MST 0 0 0.00K 0.00K High Wind

Collapsing showers northwest of Elk Mountain produced brief wind gusts of 50 to 60 mph.

Niobrara County 6 E Lusk 26 1910MST 1912MST 0 0 0.00K 0.00K Funnel Cloud

A brief funnel cloud was reported six miles east of Lusk. Niobrara County 10 E Lusk 26 1915MST 1920MST 0 0 0.00K 0.00K Hail (1.00)

Penny to quarter size hail was observed 10 miles east of Lusk.

Evening thunderstorms produced some hail along with a funnel cloud in Niobrara County.

Goshen County 1 N Lingle 28 1515MST 1525MST 0 0 0.00K 0.00K Hail (1.75)

Pea to golf ball size hail was reported in Lingle. Goshen County 1 N Lingle 28 1525MST 1530MST 0 0 0.00K 0.00K Hail (1.00)

Nickel to quarter size hail was reported in Lingle. Goshen County 6 N Torrington 28 1540MST 1545MST 0 0 0.00K 0.00K Hail (1.75)

Pea to golf ball size hail was reported six miles north of Torrington.

Late afternoon thunderstorms produced large hail in Goshen County.

WYZ106-110-116- Central Laramie Range And Southwest Platte County - North Snowy Range Foothills - South Laramie 117 Range - South Laramie Range Foothills 30 0640MST 1500MST 0 0 0.00K 0.00K High Wind

A large pressure gradient with strong westerly winds aloft produced high winds with frequent gusts above 60 mph. Peak wind gusts approached 80 mph over the southern Laramie Range.

31 1115MST 1215MST 0 0 0.00K 0.00K High Wind

WYZ116 South Laramie Range 31 1327MST 1332MST 0 0 0.00K 0.00K High Wind

660 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WYOMING, Southeast

A low pressure system over western South Dakota generated strong and gusty northwest winds to southeast Wyoming. Gusts of 60 to 65 mph were observed over the southern Laramie Range.

LAKE ST. CLAIR

LCZ460 Lake St. Clair (US Portion) 22 1720EST 0 0 0.00K 0.00K Marine Thunderstorm Wind A thunderstorm moving into Lake St. Clair produced a thunderstorm wind gust to 34 knots.

LCZ422 St. Clair River 30 1427EST 0 0 0.00K 0.00K Marine Thunderstorm Wind A severe thunderstorm passed through the St. Clair River.

LCZ423 Detroit River 31 1920EST 0 0 0.00K 0.00K Marine Thunderstorm Wind A severe thunderstorm moved into the Detroit River.

GULF OF MEXICO

GMZ856 Bonita Beach to Englewood FL out 20nm 01 1155EST 0 0 0.00K 0.00K Marine Thunderstorm Wind A large mesoscale convective system over the western Gulf of Mexico pushed onshore with widespread thunderstorms. One of these storms produced 35 knot wind gusts.

GULF OF MEXICO

GMZ532 Mississippi Sound 01 1836CST 0 0 0.00K 0.00K Marine Thunderstorm Wind A slow moving upper low over southern Louisiana fueled the development of strong thunderstorms over the coastal waters.

GULF OF MEXICO

GMZ230-235 Corpus Christi to Baffin Bay - Point O`Connor to Aransas Pass

02 0242CST 0248CST 0 0 0.00K 0.00K Marine Thunderstorm Wind

Scattered thunderstorms developed over South Texas in advance of a cold front moving into the region during the early morning hours. The storms produced wind gusts between 40 and 45 mph from Corpus Christi Bay to Copano Bay.

GULF OF MEXICO

GMZ035 GULF OF MEXICO FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL OUT TO 5 FATHOMS 02 1025EST 0 0 0.00K 0.00K Marine Thunderstorm Wind

GMZ035 Gulf Of Mexico From West End Of Seven Mile Bridge To Halfmoon Shoal Out To 5 Fathoms

02 1045EST 0 0 0.00K 0.00K Marine Hail 02 1050EST 0 0 0.00K 0.00K Marine Thunderstorm Wind 02 1055EST 0 0 0.00K 0.00K Marine Thunderstorm Wind 02 1100EST 0 0 0.00K 0.00K Marine Thunderstorm Wind 02 1120EST 0 0 0.00K 0.00K Marine Thunderstorm Wind

GMZ035-043-044 Gulf Of Mexico From West End Of Seven Mile Bridge To Halfmoon Shoal Out To 5 Fathoms - Hawk Channel From Craig Key To West End Of Seven Mile Bridge Out To The Reef - Hawk Channel From West End Of Seven Mile Bridge To Halfmoon Shoal Out To The Reef 02 1122EST 1411EST 0 0 0.00K 0.00K Marine Thunderstorm Wind 661 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GULF OF MEXICO

Southerly inflow into a large convective complex in the southeast Gulf of Mexico combined with diverging flow aloft and a moist, unstable atmosphere to produce numerous thunderstorms over the extreme lower Florida Keys.

GMZ042 Hawk Channel From Ocean Reef To Craig Key Out To The Reef 03 1323EST 0 0 0.00K 0.00K Marine Thunderstorm Wind Scattered thunderstorms developing east of a broad area of low pressure in the eastern Gulf of Mexico produced gale-force wind gusts along the reef offshore Key Largo, Florida.

GULF OF MEXICO

GMZ530-534-552 Coastal Waters From Southwest Pass Of The Mississippi River To Port Fourchon Louisiana Out 20 Nm - Lake Borgne - Lake Ponchartrain and Lake Maurepas 10 0612CST 0730CST 0 0 0.00K 0.00K Marine Thunderstorm Wind

Several waves of low pressure moved across southern Louisiana during the 10th and 11th. Reports of wind damage were received across southeast Louisiana.

GULF OF MEXICO

GMZ335-355 Galveston Bay - High Island to Freeport TX out 20nm 10 1048CST 1134CST 0 0 0.00K 0.00K Marine Thunderstorm Wind

Clusters and lines of storms produced strong wind gusts along the coast and over the adjacent marine area.

GULF OF MEXICO

GMZ450 Cameron LA to High Island TX out 20nm 10 1235CST 0 0 0.00K 0.00K Marine Thunderstorm Wind Strong storms moved over the Gulf of Mexico producing numerous reports of strong wind gusts.

GULF OF MEXICO

GMZ355 High Island to Freeport TX out 20nm 10 1250CST 0 0 0.00K 0.00K Marine Thunderstorm Wind Clusters and lines of storms produced strong wind gusts along the coast and over the adjacent marine area.

GULF OF MEXICO

GMZ450-452-455- Atchafalaya River to Intracoastal City LA 20 to 60nm - Atchafalaya River to Intracoastal City LA out 470-472-475 20nm - Cameron LA to High Island TX 20 to 60nm - Cameron LA to High Island TX out 20nm - Intracoastal City LA to Cameron LA 20 to 60nm - Intracoastal City LA to Cameron LA out 20nm 11 0036CST 1000CST 0 0 0.00K 0.00K Marine Thunderstorm Wind

Strong storms moved over the Gulf of Mexico producing numerous reports of strong wind gusts.

GULF OF MEXICO

GMZ035-044 Gulf Of Mexico From West End Of Seven Mile Bridge To Halfmoon Shoal Out To 5 Fathoms - Hawk Channel From West End Of Seven Mile Bridge To Halfmoon Shoal Out To The Reef 13 1055EST 1131EST 0 0 0.00K 0.00K Waterspout

A robust towering cumulus cloud line developed over the Lower Florida Keys, producing several waterspouts just north and west of the island chain.

662 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GULF OF MEXICO GMZ830 Tampa Bay 20 1500EST 0 0 0.00K 0.00K Marine Thunderstorm Wind An upper level trough crossing Florida interacted with an already moist atmosphere to enhance sea breeze thunderstorms throughout the afternoon. Some of these storms produced marine thunderstorm wind gusts.

GULF OF MEXICO

GMZ032-043 Gulf Side of the Lower Keys out 20nm - Hawk Channel From Craig Key To West End Of Seven Mile Bridge Out To The Reef 20 1635EST 1655EST 0 0 0.00K 0.00K Marine Thunderstorm Wind

An outflow boundary produced by strong thunderstorms over the Everglades of south Florida focused additional thunderstorm development throughout Florida Bay and the Middle Florida Keys. Gale-force wind gusts occurred as the developing thunderstorms spread south across the Middle Florida Keys and out to the adjacent reef.

GULF OF MEXICO

GMZ450 Cameron LA to High Island TX out 20nm 22 0535CST 0 0 0.00K 0.00K Marine Thunderstorm Wind Severe storms from Jefferson County moved southeast over the Sabine Pass area and into the near shore waters producing high wind gusts.

GULF OF MEXICO

GMZ032-044 Gulf Side of the Lower Keys out 20nm - Hawk Channel From West End Of Seven Mile Bridge To Halfmoon Shoal Out To The Reef 22 1355EST 1600EST 0 0 0.00K 0.00K Waterspout

Waterspouts developed in association with a cumulus cloud line extending from just south of Bahia Honda Key to north of Vaca Key.

GMZ042-043 Hawk Channel From Craig Key To West End Of Seven Mile Bridge Out To The Reef - Hawk Channel From Ocean Reef To Craig Key Out To The Reef 27 0440EST 1753EST 0 0 0.00K 0.00K Marine Thunderstorm Wind

Gale-force wind gusts were measured along the reef from the outflow boundaries of collapsing thunderstorms moving northwest out of the Florida Straits.

GMZ032 Gulf Side of the Lower Keys out 20nm 28 0938EST 0 0 0.00K 0.00K Waterspout An isolated waterspout was reported in association with a line of showers moving northwest in nearshore Gulf of Mexico waters east of Big Pine Key.

GMZ042 Hawk Channel From Ocean Reef To Craig Key Out To The Reef 29 0244EST 0 0 0.00K 0.00K Marine Thunderstorm Wind A thunderstorm produced localized gale-force wind gusts as it passed directly over Molasses Reef.

GULF OF MEXICO

GMZ435 Vermilion Bay 29 0915CST 0 0 0.00K 0.00K Waterspout A waterspout was reported near Cypremort Point.

663 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GULF OF MEXICO GMZ042 Hawk Channel From Ocean Reef To Craig Key Out To The Reef 29 2234EST 0 0 0.00K 0.00K Marine Thunderstorm Wind 30 0210EST 0 0 0.00K 0.00K Marine Thunderstorm Wind Thunderstorms developed from lower tropospheric speed convergence as easterly winds increased during the late evening of May 29th. Gale-force wind gusts were measured along the reef offshore Key Largo, Florida.

EAST PACIFIC OCEAN

PZZ530 San Francisco/San Pablo/Suisun Bay and West Delta 09 1300PST 1 0 0.00K 0.00K Marine Strong Wind Gusty Southwest Winds lead to the capsizing of an America's Cup Yacht in San Francisco Bay during training runs. M36IW

ATLANTIC, Caribbean Sea and Tropical Atlantic

AMZ651 Deerfield Beach to Ocean Reef FL 01 1413EST 0 0 0.00K 0.00K Waterspout An upper level low pressure trough was located over the northeast Gulf of Mexico along with a surface trough over central Florida producing scattered thunderstorms across the South Florida coastal waters.

AMZ610 Lake Okeechobee 02 0909EST 0 0 0.00K 0.00K Waterspout An area of low pressure over the eastern Gulf of Mexico and a surface trough across central Florida combined to produce a strong thunderstorm over Lake Okeechobee.

ATLANTIC, Caribbean Sea and Tropical Atlantic

AMZ472 Fernandina Beach to St. Augustine FL 20 to 60nm 03 1235EST 0 0 0.00K 0.00K Marine Thunderstorm Wind Strong thunderstorm winds produced a gust to 42 mph (36 kts) at buoy 41012.

ATLANTIC, Caribbean Sea and Tropical Atlantic

AMZ550 Flagler Beach to Cocoa Beach FL out 20nm 03 1647EST 0 0 2.0K 0.00K Marine Strong Wind A deepening low pressure system moved from the northern Brevard coastal waters northward and produced gale conditions over the coastal waters and along the coastline. Wind gusts of 45 to 54 mph were common for several hours. While there was scattered convection in the area, the strongest wind gusts were from gradient, non-convective winds.

ATLANTIC, Caribbean Sea and Tropical Atlantic

AMZ450 Altamaha Sound to Fernandina Beach FL out 20nm 05 0305EST 0 0 0.00K 0.00K Marine Thunderstorm Wind A cold front moved over the waters with a line of strong storms.

ATLANTIC, Caribbean Sea and Tropical Atlantic

AMZ610 Lake Okeechobee 10 1700EST 0 0 0.00K 0.00K Marine Thunderstorm Wind Abundant tropical moisture and instability combined to produce scattered thunderstorms across South Florida during the late afternoon and early evening.

AMZ651 Deerfield Beach to Ocean Reef FL 11 0615EST 0625EST 0 0 0.00K 0.00K Waterspout

Tropical moisture and instability along with a light wind resulted in scattered showers to form off the coast of southeast Florida.

664 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ATLANTIC, Caribbean Sea and Tropical Atlantic AMZ552 Volusia-Brevard County Line to Sebastian Inlet 0 to 20nm 11 1550EST 0 0 0.00K 0.00K Marine Thunderstorm Wind

AMZ555 Cocoa Beach to Jupiter Inlet FL out 20nm 11 1755EST 0 0 0.00K 0.00K Marine Hail 11 1800EST 0 0 0.00K 0.00K Marine Thunderstorm Wind Several strong to severe thunderstorms moved from the mainland to the intracoastal waterways and barrier islands then spread into the nearshore Atlantic. Wind gusts over 34 knots occurred, with peak gusts as high as 54 knots.

ATLANTIC, Caribbean Sea and Tropical Atlantic

AMZ650 Jupiter Inlet to Deerfield Beach FL out 20nm 17 0522EST 0 0 0.00K 0.00K Waterspout Tropical moisture and instability along with a light wind produced scattered morning showers off the coasts of Palm Beach and Broward Counties.

18 0821EST 0 0 0.00K 0.00K Waterspout A weak upper level trough of low pressure moved across South Florida producing scattered showers and thunderstorms.

AMZ610 Lake Okeechobee 22 1215EST 1230EST 0 0 0.00K 0.00K Waterspout

High moisture and instability led to thunderstorms developing over parts of south Florida.

ATLANTIC, North

ANZ530>532-536- Chesapeake Bay North of Pooles Island MD - Chesapeake Bay Poole`s Island to Sandy Point MD - 538 Chesapeake Bay Sandy Point to North Beach MD - Patapsco River Including Baltimore Harbor - Tidal Potomac Indian Head to Cobb Island MD 10 2038EST 2200EST 0 0 0.00K 0.00K Marine Thunderstorm Wind

Low pressure over the Ohio Valley and an associated cold front approached the mountains. Southerly flow transported moisture into the region. Upper level jet dynamics were stronger across the Ohio Valley.

ATLANTIC, North

ANZ338 New York Harbor 11 1508EST 0 0 3.0K Marine Thunderstorm Wind Scattered showers and thunderstorms congealed into a squall line ahead of an approaching cold front during the afternoon. Isolated severe thunderstorms were embedded within the line, mainly over the NYC Metro area.

ATLANTIC, North

ANZ543 Tangier Sound And The Inland Waters Surrounding Bloodsworth Island

11 1720EST 0 0 0.00K 0.00K Marine Thunderstorm Wind Low pressure and an associated cold front crossed the Mid Atlantic. Ahead of this system, southerly flow transported moisture into the region. Thunderstorm wind damage was the main threat.

665 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ATLANTIC, North ANZ631-637 Chesapeake Bay Windmill Point to New Point Comfort VA - James River From Jamestown To The James River Bridge 16 1710EST 1736EST 0 0 0.00K 0.00K Marine Thunderstorm Wind

Isolated thunderstorm in advance of a cold front produced gusty winds across portions of the James River.

ATLANTIC, North

ANZ543 Tangier Sound And The Inland Waters Surrounding Bloodsworth Island

16 1742EST 0 0 0.00K 0.00K Marine Thunderstorm Wind A cold front moved southward through the Central Foothills and stalled. A few upper level disturbances moved over this region as well. Thunderstorms developed near this frontal boundary.

ANZ535 Tidal Potomac Key Bridge to Indian Head MD 23 1740EST 0 0 0.00K 0.00K Marine Thunderstorm Wind A cold front was approaching from the west. Ahead of it temperatures reached their convective temps and wind speeds increased. Thunderstorms formed along a lee trough.

ATLANTIC, North

ANZ636 York River 23 1806EST 0 0 0.00K 0.00K Marine Thunderstorm Wind Isolated thunderstorm in advance of a cold front produced gusty winds across portions of the York River.

ATLANTIC, North

ANZ535-536 Tidal Potomac Indian Head to Cobb Island MD - Tidal Potomac Key Bridge to Indian Head MD

23 1808EST 2309EST 0 0 0.00K 0.00K Marine Thunderstorm Wind

A cold front was approaching from the west. Ahead of it temperatures reached their convective temps and wind speeds increased. Thunderstorms formed along a lee trough.

ATLANTIC, North

ANZ632-634 Chesapeake Bay From Little Creek - Chesapeake Bay New Point Comfort to Cape Henry VA

24 1200EST 0 0 0.00K 0.00K Marine Thunderstorm Wind Scattered thunderstorms in advance of a cold front produced gusty winds across portions of the Chesapeake Bay.

LAKE HURON

LHZ421-422 Inner Saginaw Bay & SW of Point Au Gres to Bay Port MI - Outer Saginaw Bay & SW of Alabaster to Point Austin MI 11 1600EST 1910EST 0 0 0.00K 0.00K Marine Thunderstorm Wind

Thunderstorms moving through Saginaw Bay produced frequent wind gusts between 35 and 48 knots.

20 1610EST 1640EST 0 0 0.00K 0.00K Marine Thunderstorm Wind

LHZ421-441>443 Harbor Beach to Point Sanilac MI - Outer Saginaw Bay & SW of Alabaster to Point Austin MI - Point Austin to Harbor Beach MI - Point Sanilac to Point Huron MI 20 1630EST 1850EST 0 0 0.00K 0.00K Marine Thunderstorm Wind

666 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

LAKE HURON

Thunderstorms moving through Saginaw Bay and Southern Lake Huron produced wind gusts to around 60 mph.

LHZ443 Point Sanilac to Point Huron MI 30 1442EST 0 0 0.00K 0.00K Marine Thunderstorm Wind A thunderstorm produced a measured 47 mph thunderstorm wind gust at Fort Gratiot.

LAKE MICHIGAN

LMZ645 North Point Light to Wind Point WI 14 2025CST 2045CST 0 0 0.00K 0.00K Marine Thunderstorm Wind

Weak high based showers and thunderstorms caused by an approaching strong frontal boundary produced a brief period of strong winds over the near shore waters.

LAKE MICHIGAN

LMZ741-745 Burn Harbor to Michigan City In - Wilmette Harbor to Meigs Field IL

20 2210CST 2320CST 0 0 0.00K 0.00K Marine Thunderstorm Wind

Strong to severe thunderstorms moved across southern Lake Michigan during the late evening of May 20th and the early morning of May 21st.

LAKE MICHIGAN

LMZ046 Michigan City in to New Buffalo MI 21 0015EST 0016EST 0 0 0.00K 0.00K Marine Thunderstorm Wind

A squall line extended from northeastern Illinois into Arkansas. The northern portion of this line moved over southern Lake Michigan, but was slowly weakening as it moved east. Strong winds were recorded at the Michigan City GLERL site as it came onshore. Once inland, no severe weather occurred.

LAKE MICHIGAN

LMZ744-745 Burn Harbor to Michigan City In - Gary to Burns Harbor in 28 2030CST 2040CST 0 0 0.00K 0.00K Marine Thunderstorm Wind

Severe thunderstorms moved across parts of southern Lake Michigan during the evening hours of May 28th.

LMZ740>742-744 Gary to Burns Harbor in - Meigs Field to Calumet Harbor IL - Wilmette Harbor to Meigs Field IL - Winthrop Harbor to Wilmette Harbor IL 30 1520CST 2230CST 0 0 0.00K 0.00K Marine Thunderstorm Wind

Strong to severe thunderstorms moved across parts of southern Lake Michigan during the afternoon and evening hours of May 30th.

LAKE SUPERIOR

LSZ248-265>266 Grand Marais to Whitefish Point MI - Manitou Island To Marquette Mi Beyond 5nm From Shore - Manitou Island to Marquette Mi and W of Grand Marais Mi to Us/Canadian Border beyond 5nm of shore - Marquette To Munising Mi 30 1750EST 1845EST 0 0 0.00K 0.00K Marine Thunderstorm Wind

667 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

LAKE SUPERIOR

Upper disturbances moving through a warm and unstable air mass produced several strong to severe thunderstorms over the west half of Lake Superior during the late afternoon hours of the 30th.

LSZ242-246-248- Grand Marais to Whitefish Point MI - Manitou Island to Marquette Mi and W of Grand Marais Mi to 266 Us/Canadian Border beyond 5nm of shore - Marquette to Munising MI - Ontonagon to Upper Entrance of Portage Canal MI - Upper Entrance of Portage Canal to Manitou Island MI 31 1950EST 2205EST 0 0 0.00K 0.00K Marine Thunderstorm Wind

Upper disturbances moving through a warm and unstable air mass produced several strong to severe thunderstorms over the west half of Lake Superior during the evening of the 31th.

LAKE ONTARIO

LOZ042 Niagara River to Thirty Mile Point NY 20 2230EST 0 0 Marine Thunderstorm Wind Thunderstorms develop over Lake Ontario in a warm, humid air mass. One of these thunderstorms produced a measured wind gust of 50 knots at Olcott.

VIRGIN ISLANDS St. Thomas County 1 S St Thomas 10 2037AST 2315AST 0 0 0.50K 0.00K Thunderstorm Wind (46EG)

ASOS reported a wind gust of 53 mph at Charlotte amalie. Note: The estimated wind gust of 46 knots is equivalent to 53 mph. St. Thomas County St Thomas 10 2100AST 2200AST 0 0 0.10K 0.00K Thunderstorm Wind (45EG)

Buoy 41051 south of Saint Thomas reported a wind gust of 45 knots.

An upper level trough combined with daytime heating and local effects to produce scattered to numerous showers with strong thunderstorms over the local islands. Note: The estimated wind gust of 45 knots is equivalent to 52 mph.

PUERTO RICO Arecibo 2 NNE Arecibo 01 1810AST 1925AST 0 0 0.00K 0.00K Flood

Areas of road PR-2 were reported flooded. Some business were affected.

Ciales 2 NW Ciales 01 1810AST 0 0 0.00K 0.00K Heavy Rain A landslide was reported on Road PR-146 from Ciales to Utuado.

An upper level trough combined with ample low level moisture,daytime heating and local effect to produced scattered to numerous showers and thunderstorms mainly in the northern half of Puerto Rico.

Vega Alta 2 SW Vega Alta 06 1627AST 1700AST 0 0 0.00K 0.00K Flash Flood

Road PR-620 was reported flooded and closed due to Mavilla river out of its banks.

Ponce 3 SSE Ponce 06 1737AST 2017AST 0 0 0.00K 0.00K Flood

Numerous streets were reported flooded in the city of Ponce.

668 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PUERTO RICO Barranquitas 3 WSW Barranquitas 07 1424AST 1730AST 0 0 0.00K 0.00K Flood

Heavy rainfall led to urban flooding in Palo Incado sector near road PR-720.

San Sebastian 3 WNW San Sebastian 07 1600AST 2130AST 0 0 0.00K 0.00K Flash Flood

Road PR-125 was closed due to flash flooding. Rincon 3 ENE Rincon 07 1700AST 1745AST 0 0 0.00K 0.00K Heavy Rain

Mudslide was reported at road PR-411. Rincon 1 WNW Rincon 07 1700AST 1745AST 0 0 0.50K 0.00K Thunderstorm Wind (30EG)

Road PR-412 in Rincon was closed due to a tree falling on to the road.

Note: The estimated wind gust of 30 knots is equivalent to 35 mph. Orocovis 2 E Orocovis 07 1710AST 0 0 0.00K 0.00K Heavy Rain Mudslide reported affecting road PR-156 in Orocovis. Vega Alta 1 NW Vega Alta 07 1741AST 2030AST 0 0 0.00K 0.00K Flash Flood

Rio Cibuco in Vega Alta was over its banks which affected roads PR-620, PR-647, PR-675, and PR-690 ans Road PR-2.

Ciales 5 NE Ciales 07 1800AST 08 0403AST 0 0 0.00K 0.00K Flash Flood

Rio Grande De Manati flooded road PR-145. Utuado Utuado 07 2012AST 0 0 0.00K 0.00K Heavy Rain Mudslide reported affected PR-111 Km 1.5. San Sebastian San Sebastian 07 2040AST 0 0 0.00K 0.00K Heavy Rain

A total of 5.01 inches recorded in downtown San Sebatian. Moca 3 WNW Moca 07 2200AST 0 0 0.00K 0.00K Flood Rio Culebrinas was reported out of its banks flooding road PR-110.

Deep tropical moisture combined with daytime heating and an upper level trough to produced scattered to numerous showers with thunderstorms. Very heavy rain fell over the western interior section of Puerto Rico, which led to several roads closed and several creeks and rivers out of its banks.

Aguada 19 N Aguada 08 0900AST 2130AST 0 0 0.00K 0.00K Flood

Road PR-418 and road PR-115 were reported flooded and closed due to Rio Culebrinas out of its banks.

669 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PUERTO RICO Naguabo 2 ESE Naguabo 08 1315AST 1915AST 0 0 0.00K 0.00K Flood

Highway PR-31 At Highway PR-3 was reported flooded. Rio Blanco was reported out of its banks. Also flooded PR-53 near road PR-3 at abandoned factory. Naguabo 2 S Naguabo 08 1500AST 1915AST 0 0 0.00K 0.00K Flash Flood

Road PR-192, Road PR-31 and Highway PR-53 were completely impassable due to the flooding caused by the Heavy Rain and Rio Blanco being out of its banks. Dorad 1 E Dorado 08 1554AST 1730AST 0 0 0.00K 0.00K Flood

Flooding was reported in Barrio Mameyal. Guaynabo 9 NW Guaynabo 08 1600AST 1945AST 0 0 0.00K 0.00K Flood

Many roads were flooded due to Quebrada Margarita out of its banks at La Marina sector.

Catano 2 NW Catano 08 1700AST 1945AST 0 0 0.00K 0.00K Flash Flood

Flooding was reported in several roads in Catano. Cars were stranded in flooding waters.

Naguabo Naguabo 08 1715AST 1915AST 0 0 0.00K 0.00K Heavy Rain

A mudslide affected road PR-972 in Barrio Mariana. Guaynabo 9 NW Guaynabo 08 1730AST 1945AST 0 0 0.00K 0.00K Flash Flood

Several roads were completely impassable around the Buchanan Military Base.

Rio Grande 2 NNW Rio Grande 09 0550AST 0845AST 0 0 0.00K 0.00K Flash Flood

Off-duty NWS employee reported flood at Coco Beach area, along road PR-955 due to a tributary of Rio Espiritu Santo out of its banks. Rio Grande 3 NW Rio Grande 09 0550AST 0845AST 0 0 0.00K 0.00K Flash Flood

Rio Espiritu Santo out its banks in a couple of locations, including areas along road PR-187.

An upper level trough combined with daytime, sea breeze convergence and local effect to produced numerous showers with thunderstorms. Locally heavy rainfall occured over the eastern half of Puerto Rico and the San Juan metropolitan area as well over the west section of Puerto Rico.

670 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PUERTO RICO Vega Alta 3 WNW Vega Alta 10 1702AST 2045AST 0 0 0.00K 0.00K Flood

Quebrada Machuchal and Quebrada Honda both were out of its banks.

Lares Lares 10 1815AST 2045AST 0 0 0.00K 0.00K Flash Flood

Road PR-111 flooded due to heavy rain and Anon creek, Molino creek, Rio Montebello and Rio Guajataca were out of its banks. Some residence were affected in Seburuquillo sector. Guaynabo 7 NW Guaynabo 10 1936AST 2215AST 0 0 0.00K 0.00K Flood

Urban flooding was reported at San Patricio Plaza shopping center.

San Juan 3 NW San Juan 10 1940AST 2215AST 0 0 0.00K 0.00K Flood

Parts of Roosevelt Road Avenue flooded in Hato Rey sector. Naguabo Naguabo 10 2055AST 2330AST 0 0 0.00K 0.00K Flash Flood

Rio Blanco was reported out of its banks flooding road PR-31.

Carolina 3 NW Carolina 10 2200AST 2315AST 0 0 0.00K 0.00K Flood

Flooding occured at intersection between roads PR-3 and PR-8.

An upper level trough across the Mona passage generated an outflow boundary, producing very heavy rainfall and strong gusty winds across the San Juan metro area, North Central and Western Interior sections of Puerto Rico. Also, this upper level trough combined with strong daytime heating and favorable upper level dynamics to produce scattered to numerous showers with thunderstorms. Bayamon 2 N Bayamon 13 1530AST 1730AST 0 0 0.00K 0.00K Flood

Emergency Management Director reported urban flooding at Los Millones Avenue, Villa Contesa urbanization, Castiglioni Avenue and Country Estates urbanization. Guaynabo 7 NW Guaynabo 13 1530AST 1730AST 0 0 0.50K 0.00K Flood

Martinez Nadal Avenue near Summit Hills and Road PR-177 were reported flooded. Also, A car was stranded at Genova street in Villa Caparra sector with one person inside the car. The person was rescued.

San Sebastian 3 NW San Sebastian 13 1530AST 1715AST 0 0 0.00K 0.00K Flood

PR-125, km 26.5 was reported flooded at Barrio Pozas.

671 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PUERTO RICO Guayanilla 1 SSE Guayanilla 13 1530AST 1715AST 0 0 0.00K 0.00K Heavy Rain

A mudslide was reported at Road Pr-383 in Barrio Magas Arriba.

An upper level trough combined with strong daytime heating and local effects producing scattered to numerous showers with isolated thunderstorms mainly across the San Juan Metropolitan area and over the Western Interior sections of Puerto Rico.

Yabucoa 1 SSW Yabucoa 14 1421AST 1715AST 0 0 0.00K 0.00K Flash Flood

A bridge collapsed due to a creek out of its banks and families were uncommunicated.

Yabucoa 2 WSW Yabucoa 14 1441AST 1715AST 0 0 0.00K 0.00K Flash Flood

Rio Guayanes was reported out of its banks at Calabaza sector.

An upper level trough combined with strong daytime heating, orographic affects and a southeast wind flow at the surface, to produce persistent showers with torrential rainfall mainly over the southeast section of Puerto Rico.

Moca 3 SSW Moca 15 1319AST 1730AST 0 0 0.00K 0.00K Heavy Rain

A tree went down at road PR-495 At Barrio Cerro Gordo in Moca.

Las Piedras 3 N Las Piedras 15 1336AST 1700AST 0 0 0.00K 0.00K Flood

A small bridge colapsed near barrio Quebrada Grande. Las Piedras 3 NNE Las Piedras 15 1345AST 1545AST 0 0 0.00K 0.00K Flash Flood

Quebrada Honda was reported out of its banks producing flash flooding at Barrio Lijas.

Canovanas 4 NW Canovanas 15 1508AST 1545AST 0 0 0.00K 0.00K Flash Flood

Rio Canovanas was reported out of its banks. Naguabo 2 ESE Naguabo 15 1508AST 1545AST 0 0 0.00K 0.00K Flash Flood

Road PR-31 was closed and impassable due to Rio Blanco out of its banks.

Rio Grande 3 NW Rio Grande 15 1508AST 1545AST 0 0 0.00K 0.00K Flash Flood

Flash flooding was reported at downtown Rio Grande municipality.

672 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PUERTO RICO Las Piedras 4 N Las Piedras 15 1508AST 1545AST 0 0 0.50K 0.00K Heavy Rain

One line of Road PR-948 was reported impassable due to a mudslide over the area.

Arecibo 7 WNW Arecibo 15 1510AST 1730AST 0 0 0.00K 0.00K Flood

Road PR-2 was completly flooded and impassable. Some people had to park on the side and wait the water levels to receed.

Naguabo 2 WSW Naguabo 15 1600AST 1700AST 0 0 0.00K 0.00K Flood

Highway PR-927 was reported impassable due to flooding waters.

An upper level trough passed north of Puerto Rico during the afternoon. This trough, kept unstable atmospheric conditions, combined with daytime heating and sea breeze convergence to produce scattered to numerous showers over the southeast and western interior sections of Puerto Rico. Total rainfall accumulation were between two to four inches mainly in Las Piedras municipality. Guaynabo 6 WNW Guaynabo 21 1706AST 1845AST 0 0 0.00K 0.00K Flash Flood

Esmeralda Avenue was reported flooded. San Juan 2 WSW San Juan 21 1706AST 1845AST 0 0 0.00K 0.00K Flash Flood

Bridge below road PR-1 at San Roberto street near Interamerican University was reported flooded.

San Juan San Juan 21 1706AST 1845AST 0 0 0.00K 0.00K Flash Flood

Roads in Villa Nevarez and Caparra sectors were reported flooded.

San Juan 3 NNW San Juan 21 1706AST 1845AST 0 0 0.00K 0.00K Flash Flood

Roosevelt avenue was reported flooded in front of Aurorita Restaurant.

San Juan 1 NNE San Juan 21 1725AST 1845AST 0 0 0.00K 0.00K Flash Flood

U.S.G.S River sensor indicated Rio Piedras was out of its banks and peak at 20.26 feet. The flood stage is 15 feet.

San Juan 2 NW San Juan 21 1725AST 1845AST 0 0 0.00K 0.00K Flash Flood

San Claudio Avenue was reported flooded and closed. An active Tropical Wave, combined with daytime heating and sea breeze convergence to produce scattered to numerous showers and isolated to scattered thunderstorms across Puerto Rico.

673 Time Path Path Number of Estimated May 2013 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PUERTO RICO Trujillo Alto Trujillo Alto 22 1315AST 1915AST 0 0 0.00K 0.00K Heavy Rain

A mudslide was reported at road PR-851 La Gloria sector. Guaynabo 7 NW Guaynabo 22 1610AST 1915AST 0 0 0.00K 0.00K Flood

Urban flooding in some areas of road PR-169 near San Patricio Mall.

Bayamon 2 NNW Bayamon 22 1615AST 1915AST 0 0 0.00K 0.00K Flood

Urban flooding on road PR-837 near a residential area at Santa Rosa I and Barrio Canta Gallo.

Caguas 7 NNW Caguas 22 1716AST 1915AST 0 0 0.00K 0.00K Flood

Rio Caas was reported out of its banks at Barrio Caas. Las Piedras 3 WNW Las Piedras 22 1716AST 1830AST 0 0 0.00K 0.00K Flood

Olympic Ville urbanization was reported flooded. Abundant moisture combined with unstable atmospheric conditions and sea breeze convergence to produce scattered to numerous showers with isolated thundertorms across Puerto Rico, mainly over the San Juan metropolitan area.

San Juan 2 ENE San Juan 27 1706AST 2130AST 0 0 0.00K 0.00K Flood

Urban flooding reported at Rio Piedras sector near Monte Hatillo building complex.

Vega Alta Vega Alta 27 1915AST 2130AST 0 0 0.00K 0.00K Flood

Areas of Barrio Machuchal was reported flooded. Carolina 4 NW Carolina 27 1930AST 0 0 2.00K 0.00K Thunderstorm Wind (35EG) Power lines downed at Ramal 8 and Ave Piero. Note: The estimated wind gust of 35 knots is equivalent to 40 mph. Arecibo 4 NW Arecibo 27 1943AST 2130AST 0 0 0.00K 0.00K Flood

Urban flooding was reported at la Puntilla Sector in Arecibo.

An upper level trough located over the Western Atlantic, induced a southwesterly wind flow at the surface, which combined with daytime heating, led to heavy rainfall over the San Juan metropolitan area and the North Central sections of Puerto Rico.

674 Reference Notes:

Storm Data Disclosure

Storm Data is an official publication of the National Oceanic and Atmospheric Administration (NOAA) which documents the occurrence of storms and other significant weather phenomena having sufficient intensity to cause loss of life, injuries, significant property damage, and/or disruption to commerce. In addition, it is a partial record of other significant meteorological events, such as record maximum or minimum temperatures or precipitation that occurs in connection with another event.

Some of the information appearing in Storm Data may have been provided by or gathered from sources outside the National Weather Service (NWS), such as the media, law enforcement and/or other government agencies, private companies, individuals, etc. An effort is made to use the best available information, but because of time and resource constraints, information from these sources may be unverified by the NWS. Therefore, when using information from Storm Data, customers should be cautious as the NWS does not guarantee the accuracy or validity of the information. Further, when it is apparent information appearing in Storm Data originated from a source outside the National Weather Service (frequently credit is provided), Storm Data customers requiring additional information should contact that source directly. In most cases, NWS employees will not have the knowledge to respond to such requests. In cases of legal proceedings, under Department of Commerce regulations and/or rules of the court, NWS employees are not legally obligated to provide written or verbal testimony.

Fatality Codes: For events that include a fatality, there is a code containing the gender, age and fatality location at the end of the event narrative. 1st -letter: Gender (M/F) / 2nd -numbers: Age / 3rd -letters: Fatality location (see table below) Example: M51IW – Male, 51 years of age, fatality occurred In Water.

Fatality Location Abbreviations:

BF Ball Field MH Mobile Home BO Boating OT Other BU Business OU Outside/Open Areas CA Camping PH Permanent Home EQ Heavy Equipment/Construction SC School GF Golfing TE Telephone IW In Water UT Under Tree LS Long Span Roof VE Vehicle

List of Acronyms:

NWS - National Weather Service NOAA - National Oceanic and Atmospheric Administration WCM - Warning Coordination Meteorologist – The meteorologist at each NWS Office responsible for …………………reporting severe weather events LST - Local Standard Time Storm Data attempts to always use “Standard Time” AST - Atlantic Standard Time EST/EDT - Eastern Standard Time / Eastern Daylight Time CST/CDT - Central Standard Time / Central Daylight Time MST/MDT - Mountain Standard Time / Mountain Daylight Time …………………………………………………………………………………………………………………………… ………………………………………………………….._675…………………………………………………

PST/PDT - Pacific Standard Time / Pacific Daylight Time AKS - Alaska Standard Time HST - Hawaii Standard Time

Other Notes:

An “Episode” is an entire storm system and can contain many different types of events.

An “Event” is an individual type of storm event.

When listing wind speed values under “Character of Storm”, i.e. High Wind (G81): The G indicates a “Gust” which is a peak 5-second averaged wind speed in Knots (kts). 1 kt. = 1.152 mph. This number can be either E (estimated) by damage caused, or M (measured) by known calibrated anemometers. Examples: (M61) = measured 61 knots; (E75) = estimated at 75 knots.

All wind speeds listed are estimated by NWS personnel by the amount and type of damage unless otherwise noted with an “M” which represents an actual wind speed as measured by official NWS approved anemometer.

When listing hail size under “Character of Storm”, ex. Hail (2.25), the hail size is given in inches and hundredths of inches.

When listing property and crop damage, the figures indicated are the best guess made by the NWS from the available sources of information at the time of the printing.

The fatalities, injuries, and damage amounts appearing in tropical cyclone events are attributed only to wind damage experienced in the coastal counties/parishes listed. Other tropical cyclone related events such as tornadoes and flooding are listed within their separate event types.

676

The Saffir-Simpson Scale

Category One Hurricane:

Winds 74-95 mph (64-82 kts or 119-153 kph). Storm surge generally 4-5 ft above normal. No real damage to building structures. Damage primarily to unanchored mobile homes, shrubbery, and trees. Some damage to poorly constructed signs. Also, some coastal road flooding and minor pier damage.

Category Two Hurricane:

Winds 96-110 mph (83-95 kts or 154-177 kph). Storm surge generally 6-8 feet above normal. Some roofing material, door, and window damage of buildings. Considerable damage to shrubbery and trees with some trees blown down. Considerable damage to mobile homes, poorly constructed signs, and piers. Coastal and low-lying escape routes flood 2-4 hours before arrival of the hurricane center. Small craft in unprotected anchorages break moorings.

Category Three Hurricane:

Winds 111-130 mph (96-113 kts or 178-209 kph). Storm surge generally 9-12 ft above normal. Some structural damage to small residences and utility buildings with a minor amount of curtainwall failures. Damage to shrubbery and trees with foliage blown off trees and large trees blown down. Mobile homes and poorly constructed signs are destroyed. Low-lying escape routes are cut by rising water 3-5 hours before arrival of the hurricane center. Flooding near the coast destroys smaller structures with larger structures damaged by battering of floating debris. Terrain continuously lower than 5 ft above mean sea level may be flooded inland 8 miles (13 km) or more. Evacuation of low-lying residences with several blocks of the shoreline may be required.

Category Four Hurricane:

Winds 131-155 mph (114-135 kts or 210-249 kph). Storm surge generally 13-18 ft above normal. More extensive curtainwall failures with some complete roof structure failures on small residences. Shrubs, trees, and all signs are blown down. Complete destruction of mobile homes. Extensive damage to doors and windows. Low-lying escape routes may be cut by rising water 3-5 hours before arrival of the hurricane center. Major damage to lower floors of structures near the shore. Terrain lower than 10 ft above sea level may be flooded requiring massive evacuation of residential areas as far inland as 6 miles (10 km).

Category Five Hurricane:

Winds greater than 155 mph (135 kts or 249 kph). Storm surge generally greater than 18 ft above normal. Complete roof failure on many residences and industrial buildings. Some complete building failures with small utility buildings blown over or away. All shrubs, trees, and signs blown down. Complete destruction of mobile homes. Severe and extensive window and door damage. Low-lying escape routes are cut by rising water 3-5 hours before arrival of the hurricane center. Major damage to lower floors of all structures located less than 15 ft above sea level and within 500 yards of the shoreline. Massive evacuation of residential areas on low ground within 5-10 miles (8-16 km) of the shoreline may be required.

677

The Enhanced Fujita Scale EF-Scale Intensity Wind Speed Typical Damage (Suggested) (mph) EF0 Gale Tornado 40 - 72 Tree branches broken, chimneys damaged, shallow-rooted trees pushed over; sign boards damaged or destroyed, outbuildings and sheds destroyed.

EF1 Moderate 73 - 112 Roof surfaces peeled off, mobile homes pushed off foundations or overturned, moving autos pushed off the roads, garages may be destroyed.

EF2 Significant 113 - 157 Roofs blown off frame houses; mobile homes demolished and/or destroyed, train boxcars pushed over; large trees snapped or uprooted; airborne debris can cause damage.

EF3 Severe 158 - 206 Roofs and walls torn off well constructed houses; trains overturned; large trees uprooted, can knock down entire forest of trees.

EF4 Devastating 207 - 260 Well-constructed frame houses leveled; structures with weak foundations blown off some distance; automobiles thrown, large airborne objects can cause significant damage.

EF5 Incredible 261 - 318 Brick, stone and cinder-block buildings destroyed, most debris is carried away by tornadic winds, large and heavy objects can be hurled in excess of 100 meters, trees debarked, asphalt peeled off of roads, steel reinforced concrete structures badly damaged. EF6 Inconceivable 319 - 379 Brick, stone and cinderblock buildings destroyed, most debris is carried away by tornadic winds, large and heavy objects can be hurled in excess of 100 meters, trees debarked, asphalt peeled off of roads, steel reinforced concrete structures badly damaged.

Typical EF0 Tornado Damage Typical EF1 Tornado Damage Note the trees are stripped of leaves, but the Note the uprooted trees and missing shingles trees remain standing. Only light roof from the roof. There is significant roof damage and a few missing shingles. damage.

678 Typical EF2 Tornado Damage Typical EF3 Tornado Damage This home is missing it’s entire roof but the This home is missing the entire roof as well as exterior walls remain intact. Some of the some of the exterior walls. Trees are blown stronger hardwood trees remain standing. over or snapped near the base and outbuildings are destroyed.

Typical EF4 Tornado Damage This home is almost completely obliterated, with no walls standing. The debris from the home is where the house once stood.

Typical EF5 Tornado Damage These homes have been completely removed from their original locations. The debris field has been scattered some distance from their foundation.

Typical EF5 Tornado Damage (All photographs courtesy of Brian Smith, Meteorologist, The asphalt surface has been peeled off of National Weather Service, Valley NE.) this road.

679 680 681 682 These and other publications are available from the National Climatic Data Center Hourly Precipitation Data This publication contains hourly precipitation amounts obtained from recording rain gages located at National Weather Service, Federal Aviation Administration, and cooperative observer stations. Published data are displayed in inches and tenths or inches and hundredths at local standard time. HPD includes maximum precipitation for nine (9) time periods from 15 minutes to 24 hours, for selected stations.

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