APRIL 2010 VOLUME 52 NUMBER 4

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 th Cover: On April 24 an EF-4 tornado killed 10 people in 3 Mississippi counties. It injured 146 along its 149 mile track in the space of 2 ¾ hours. This was the widest tornado in the state’s recorded history (1.75 miles). The widespread destruction included this church. (Photo courtesy: NWS Jackson, Mississippi)

TABLE OF CONTENTS Page Outstanding Storm of the Month…....………………...... ……..…………..…….……...…...... 4 Storm Data and Unusual Weather Phenomena...... …….…....…………...…...... …...... 7 Reference Notes...... ……...... ………...... …..….…...... 376

STORM DATA (ISSN 0039-1972) National Climatic Data Center Editor: Joseph E. Kraft Assistant 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).

The Storm Data and Unusual Weather Phenomena narratives and Hurricane/Tropical Storm summaries are prepared by the National Weather Service. Monthly and annual statistics and summaries of tornado and lightning events resulting in deaths, injuries, and damage are compiled by the National Climatic Data Center and the National Weather Service’s (NWS) Storm Prediction Center.

STORM DATA contains all confirmed information on storms available to our staff at the time of publication. Late reports and corrections will be printed in each edition.

Except for limited editing to correct grammatical errors, the data in Storm Data are published as received.

Note: “None Reported” means that no severe weather occurred and “Not Received” means that no reports were received for this region at the time of printing.

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This is an official publication of the National Oceanic and Atmospheric Administration and is compiled from information received at the National Climatic Data Center Asheville, North Carolina 28801-5001.

Thomas R. Karl Director, National Climatic Data Center

2 April 2010 - Confirmed Tornadoes ®

EF SCALE EF0 EF1 EF2 EF3 Number of Tornadoes EF4 EF0 EF1 EF2 EF3 EF4 EF5 Total EF5 77 32 13 4 1 0 127

Miles 0100 200 400 600 800 1,000

OUTSTANDING STORM OF THE MONTH

April 24th LA, MS Long Track EF-4 Tornado

During the midday hours of April 24th, a violent long track tornado ripped a 149 mile path across the center of the NWS Jackson, MS forecast area. This tornado was responsible for 10 fatalities along with 146 injuries as it impacted 1 parish and 8 counties.

The environment that day was very favorable for severe storms with high levels of instability and extreme wind shear. The weather pattern exhibited a classic setup for a outbreak of severe storms that included a deepening surface low centered over northeast Oklahoma, and rich Gulf moisture located between a warm front lying across northern Mississippi and a modified dry line moving east across Louisiana. Several significant severe weather parameters were peaking at levels rarely seen leading into a severe weather event. The potential for severe weather was outlooked several days in advance with the possibility for this event to produce significant severe weather.

Before the long track tornado touched down, severe weather was ongoing across eastern and south-eastern Mississippi. This tornado was spawned from a quickly evolving supercell thunderstorm tracking across north-central Louisiana. It touched down just south of Interstate 20, roughly 5 miles west of Tallulah, in Madison Parish Louisiana. Then it intensified quickly and became large as it tracked at a fast pace to the northeast. The tornado dissipated about 5 miles north of Sturgis Mississippi, in Oktibbeha County. The tornado moved at an average speed of 55 mph during its life cycle, and was on the ground for 149 miles. The actual time on the ground was 2 hours and 44 minutes.

Right: Vehicle and mobile home under carriage wrapped in a tree near Weir, MS. (Photo courtesy: NWS Jackson MS)

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Left: Destroyed chemical plant in Omega, LA. (Photo

courtesy: NWS Jackson MS)

The most significant damage occurred in Madison Parish, Warren, Yazoo, Holmes, Attala and Choctaw Counties. Across Madison Parish, several structures were damaged or destroyed along Willow Bayou Road and a chemical plant was destroyed in the Omega Community just north of Tallulah. The tornado tracked across the Mississippi River and ripped through the Eagle Lake Community and destroyed or damaged nearly 30 homes.

The tornado then tracked across rural areas of Issaquena and Sharkey Counties where large amounts of timber were destroyed. As the tornado entered Yazoo County, it grew larger and tracked toward Yazoo City. The tornado reached its widest and most intense point as it tracked across the southern and southeastern portion of Yazoo City. Numerous structures were damaged and several leveled. Tree damage was extensive as the tornado reached a width of 1.75 miles. Dozens of structures were damaged as the tornado tracked into Holmes County and crossed Interstate 55. After this point, the tornado weakened some but continued its steady course into and across Attala County. The tornado moved across the Natchez Trace Parkway just south of French Camp and then entered Choctaw County. Here, the tornado intensified once more, just a few miles east of French Camp in the community of Weir. Dozens of structures were damaged or destroyed between this point and the Chester Community.

The tornado then slowly weakened, but continued to down thousands of trees and numerous power lines as it tracked across eastern Choctaw County, eventually dissipating 5 miles north of Sturgis in west-central Oktibbeha County. A great deal of damage along the path was in the EF- 2 to EF-3 range, with a couple areas in Yazoo and Holmes Counties receiving EF-4 damage. Maximum winds peaked around 170 mph. Of the 10 fatalities, 5 occurred in Choctaw County, 4 in Yazoo County, and 1 in Holmes County. Right: Destroyed brick home in Weir, MS. (Photo courtesy: NWS Jackson, MS)

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As we try and put this tornado into perspective for the state of Mississippi, this long track tornado ranks as the 4th longest in Mississippi history at 149 miles. It is the widest known tornado with a maximum width of 1.75 miles. It also ranks as the 9th deadliest tornado with 10 fatalities, making it the most deadly since November 21st 1992. Lastly, this was the first violent tornado (F4 or greater) in the month of April since April 18th, 1978. Above: Areal image, looking east, where the tornado crossed US Highway 49 on the south side of Yazoo City. (Photo courtesy: Allen Lieberman)

Left: Image of the tornado to the southwest of Yazoo City. (Photo courtesy: Reed Timmer and Tornadovideos.net)

Left: False color image of the large wedge tornado on the southwest side of Yazoo City. (Photo courtesy: WAPT)

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Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ALABAMA, Central Blount County 1 NW Blountsville 08 0342CST 0343CST 0.2 50 0 0 15.00K 0.00K Tornado (EF0)

The short-lived tornado touched down on the northernmost ball field in Blountsville Park, where it ripped the tin roofing off the dugouts and carried them to a tree line approximately 300 to 400 yards down the path. It then continued to the north-northeast for less than a quater mile and crossed Park Drive, where it damaged a portion of the roof of a house. One large oak tree with a poor root system was also uprooted.

Jefferson County 2 WSW Rocky Ridge 08 0406CST 0 0 200.00K 0.00K Lightning

A house sustained significant damage from fire after being struck by lightning, in the Altadena Bend neighborhood near the Jefferson and Shelby County line. The residents heard the loud boom of thunder, and then had only a few minutes to get out of the house before it became engulfed. The fire destroyed the attic and upper floor of the two-story home. Three firefighters were injured (indirect) when the back deck on which they were standing collapsed, as they were dousing hot spots.

Etowah County 3 ENE Walnut Grove 08 0420CST 0 0 10.00K 0.00K Lightning

A house fire, with unspecified damages, was caused by a lightning strike in the New Union community.

Etowah County 1 WNW Attalla 08 0428CST Reeseville 0429CST 0 0 20.00K 0.00K Thunderstorm Wind (50EG)

Numerous trees were blown down in a swath from Attalla to the north side of Gadsden. Some trees were blown down and blocked a portion of Interstate 59, north of exit 183, and both lanes of the highway had to be closed for a short time to clear them. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Etowah County 1 NNE Sardis City 08 0428CST 0 0 20.00K 0.00K Thunderstorm Wind (50EG)

Several trees were blown down near the intersection of Patterson Street and Alexander Drive, near the Sardis City community. A portion of a garage roof was blown off, and a home sustained damage from a fallen tree.

A cold front pushing through the area caused numerous showers and thunderstorms across central Alabama. One storm produced a weak tornado, and another an isolated area of wind damage. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lee County 2 ESE Cawatchee 24 0344CST 0 0 0.00K 0.00K Hail (0.88)

Randolph County 1 W White 24 0454CST 0 0 0.00K 0.00K Hail (0.75)

Blount County 1 SE Snead 24 0620CST 0 0 0.00K 0.00K Hail (0.75)

Lamar County 4 NNW Molloy 24 0630CST 0 0 0.00K 0.00K Hail (1.00)

Etowah County 2 NNW Aurora 24 0645CST 0 0 0.00K 0.00K Hail (1.00)

Pickens County Palmetto 24 0655CST 0 0 0.00K 0.00K Hail (1.00)

7 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ALABAMA, Central Pickens County 1 W Aliceville 24 0705CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Several trees were blown down in the city of Aliceville. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Fayette County 1 E Bankston 24 0720CST 0 0 0.00K 0.00K Hail (0.75)

Fayette County 1 E Bankston 24 0720CST 0 0 20.00K 0.00K Thunderstorm Wind (50EG)

A tree fell onto and damaged a car and a business building on AL-18, in the Bankston community.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Jefferson County Hopkins 24 0725CST 0 0 0.00K 0.00K Hail (0.75)

Walker County 1 NW Cordova 24 0805CST 0 0 0.00K 0.00K Hail (0.88)

Sumter County 7 SSE Cuba 24 0940CST 1 ESE Soctum Hill 0950CST 0 0 100.00K 0.00K Thunderstorm Wind (70EG)

A swath of wind damage cut across the southern half of Sumter County, from west of the Ward community, east-northeastward to south of Bellamy. Dozens of trees were snapped and uprooted, many of them blocking roads. One home near CR-10 southeast of Ward received minor roof damage. The driver of a vehicle became trapped by fallen trees near AL-17.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Sumter County 5 S Siloam 24 0944CST 0.08 30 0 0 0.00K 0.00K Tornado (EF0)

A brief tornado touchdown, producing no observable damage, was reported by Fire Department personnel in the Ward community. Marengo County 1 S Shortleaf 24 1005CST 1 E Spocari 1006CST 0 0 5.00K 0.00K Thunderstorm Wind (62MG)

Several trees and power lines were blown down in and around the city of Demopolis.

Note: The measured wind gust of 62 knots is equivalent to 71 mph. Marengo County 1 WNW Demopolis 24 1019CST 2 N Spocari 1022CST 1.65 200 0 0 110.00K 0.00K Tornado (EF1)

The tornado touched down at the City Landing area of Demopolis, and from there moved on a north-northeast path. At City Landing, at least 20 people witnessed the tornado and ran for shelter. At least 20 vehicles were damaged, many with windows blown out. Tool boxes were ripped off the back of a few trucks and were thrown into other vehicles, and many trees were snapped off in the area. The tornado then crossed US-43 and moved into a rural part of the county, before crossing the Black Warrior River and moving into Greene County.

Greene County 8 SSE Forkland 24 1022CST 1032CST 5.1 200 0 2 50.00K 0.00K Tornado (EF1)

The tornado that had touched down in Marengo County, near the city of Demopolis, moved into Greene County. On its northeast path, it produced sporadic tree damage, and stayed mostly in forested areas. Just before crossing the Black Warrior River for the second time, it struck the Greene County Steam Plant, where 2 men were injured when they were blown down by the wind. A few small buildings were damaged in the same area, and a tractor trailer rig was blown over and moved at least 40 feet. The tornado then moved into Hale County.

8 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ALABAMA, Central Hale County 1 NNE Oak Grove 24 1025CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Two power poles were snapped off, about 2 miles north of the intersection of US-80 and AL-69, in the southern part of Hale County. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Hale County 3 N Arcola 24 1032CST 1035CST 1.4 200 0 0 10.00K 0.00K Tornado (EF1)

After touching down in Marengo County, and moving across a portion of Greene County, the Demopolis Tornado crossed the Black Warrior River for a second time and moved into Hale County. Within Hale County, the tornado stayed over primarily wooded terrain, and caused sporadic tree damage.

Hale County 5 NNE Greensboro 24 1050CST 2 SW Hogglesville 1103CST 5.83 100 0 0 60.00K 0.00K Tornado (EF0)

The tornado first touched down about 5 miles northeast of Greensboro, near the intersection of AL-25 and Crawford Road. It then tracked northeastward, roughly parallel to AL-25, for nearly 6 miles, and lifted just north of Starling Road. Three homes sustained minor damage, one barn was destroyed, and metal sheeting was torn off an outbuilding. At least 40 trees were uprooted along the path, some of them blocking portions of AL-25.

Tuscaloosa County 2 WNW Vance 24 1251CST 0 0 0.00K 0.00K Hail (0.88)

Lamar County 2 NE Crews 24 1405CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Several trees were blown down onto US-278, between Sulligent and Beaverton, and blocked all 4 lanes of traffic.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Marion County 2 SSE Hamilton 24 1420CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down onto a power line on Indian Mound Road, southeast of Hamilton.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Jefferson County Center Pt 24 1430CST 1600CST 0 0 5.00K 0.00K Flash Flood

A portion of Polly Reed Road, in Centerpoint, was temporarily closed due to water flowing over the roadway.

Winston County Pebble 24 1449CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Several trees were blown down in the Pebble community. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Marion County 1 NNW Hamilton Arpt 24 1503CST 1630CST 0 0 5.00K 0.00K Flash Flood

Riverside Drive, in the west side of the city of Hamilton, became temporarily impassable due to flooding.

Lamar County 3 S Beaverton 24 1520CST 0 0 0.00K 0.00K Hail (1.00)

9 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ALABAMA, Central Marion County 3 NW Winfield 24 1527CST Brilliant 1538CST 7.15 200 0 0 105.00K 0.00K Tornado (EF0)

The tornado touched down on US-43 just south of the Gu-Win community. From there it produced a sporadic damage path to the northeast for a little over 7 miles, crossing AL-253, CR-61, US-78, and AL-129, before lifting on the southwest side of Brilliant. Three homes took the brunt of the damage, all located southwest of Brilliant along County Road 47. One home had minor damage due to fallen trees. One of these trees uprooted and flipped a minivan upside down. The second home had minor roof damage and two outbuildings on the property that were destroyed. The third home incurred major structural damage when the windward side of the garage was blown in. There was also an outbuilding that flipped over at the third home location. In total, 40 to 60 hardwood trees were uprooted along the path.

Marion County 3 N Goldmine 24 1540CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down on CR-46, northeast of Brilliant. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lamar County 3 NNW Crews 24 1545CST 1900CST 0 0 10.00K 0.00K Flash Flood

Portions of AL-17 and River Road, in the city of Sulligent, had to be temporarily closed due to flash flooding.

Pickens County 2 SW Ethelsville 24 1545CST 0 0 10.00K 0.00K Hail (1.75)

Winston County Haleyville 24 1600CST 1700CST 0 0 5.00K 0.00K Flash Flood

A portion of AL-13 near Dime Road, in the city of Haleyville, had to be temporarily closed due to flash flooding.

Pickens County 1 WNW Melrose 24 1600CST 0 0 0.00K 0.00K Hail (0.88)

Fayette County 5 S Bankston 24 1906CST 1 E Berry 1917CST 6.56 200 0 0 77.00K 0.00K Tornado (EF1)

The tornado touched down near the intersection of CR-15 and Fulmer Road, just west of US-43. It then tracked northeastward for about 6.5 miles, crossing US-43 and CR-63 on the southern city limits of Berry. Four homes on CR-56 southwest of Berry received minor damage, ranging from shingle damage to garage door blown in. One metal outbuilding was destroyed. Around 50 trees were snapped or uprooted along the path.

Fayette County 1 NW Alta 24 1921CST 1927CST 2.21 400 0 0 20.00K 0.00K Tornado (EF1)

The tornado touched down in southeastern Fayette County about 4 miles northeast of Berry. It then tracked northeastward through mostly a wooded rural area, before crossing into Walker County. In Fayette County, damage was mainly confined to about 2 dozen trees that were snapped and uprooted.

Lee County 1 WNW Smiths Station 24 1924CST 0 0 0.00K 0.00K Hail (0.75)

Walker County 2 W Carona 24 1927CST 1935CST 2.38 400 0 0 55.00K 0.00K Tornado (EF1)

The tornado that first touched down near Berry, in Fayette County, moved into Walker County near where AL-18 crosses Frost Creek. From there it continued its northeast path, and eventually lifted about 5 miles west of Oakman. In Walker County, the tornado blew down a 100 foot radio tower and damaged an adjoining shed. Numerous trees were also snapped or uprooted.

10 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ALABAMA, Central Blount County 1 NW Mc Larty 24 2059CST 2102CST 0.91 200 0 0 50.00K 0.00K Tornado (EF1)

The tornado first touched down about 4 miles northeast of Brooksville, and then tracked northeastward. It was on the ground for less than a mile before moving across the county line into Marshall County, just west of the intersection of Panky Lane and Nixon Chapel Road. Within Blount County, two structures were damaged and hundreds of trees were snapped and uprooted. One mobile home was moved off its foundation and also damaged by fallen trees.

Walker County Bradleytown 24 2101CST 3 E Empire 2137CST 19.52 400 0 0 598.00K 0.00K Tornado (EF3)

This long tracked, strong, tornado first touched down in the Walker County city of Parrish. It then remained on the ground for 54 minutes, traversing nearly 30 miles in three counties. The vast majority of the damage was done in Walker County. In addition to Parrish, heavy damaged occurred in the cities of Cordova, Sumiton, and Empire. Between 70 and 80 homes and other buildings along the path received varying degrees of damage, and at least one home in Parrish was completely destroyed. Somewhere between 800 and 1000 trees were snapped, with a similar number uprooted. While there were no known deaths or injuries directly caused by the tornado, one 50 year old woman died (indirect) after she slipped and fell while going to a storm shelter. The tornado moved into Jefferson County near the intersection of Bankston Road and County Line Road.

Winston County 1 W Nathan 24 2106CST 0 0 0.00K 0.00K Hail (0.75)

Walker County 1 N Calumet 24 2107CST 0 0 0.00K 0.00K Hail (1.00)

Jefferson County Corner 24 2137CST 2 NW Warrior 2149CST 6.86 200 0 0 50.00K 0.00K Tornado (EF1)

After crossing into Jefferson County from Walker County, the Parrish Tornado continued its northeastward path. Damage in Jefferson County primarily consisted of trees that were blown down and snapped. A tree fell into and broke a living room window of a home on Arkadelphia Road, and a large storage shed had its roof torn off.

Blount County 5 WSW Hayden 24 2149CST 2155CST 3.26 200 0 0 10.00K 0.00K Tornado (EF1)

After crossing into Blount County from Jefferson County, the Parrish Tornado crossed Interstate 65 near exit 284, and finally lifted southwest of the Hayden community, between the Interstate and McCay Lake. As in Jefferson County, the damage in Blount County primarily consisted of trees that were blown down and snapped.

Etowah County 1 NW Gallant 24 2242CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Trees and power lines were blown down northwest of Gallant and east of Altoona. One 32 year old man was killed (indirect) when the car he was a passenger in struck a tree that had fallen across the road.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Bibb County 2 SSW River Bend 24 2245CST 0 0 20.00K 0.00K Thunderstorm Wind (70EG)

Winds estimated around 80 mph uprooted 5 hardwood trees, damaged the roof of a house, and damaged a travel trailer. All this occurred on CR-9, southwest of West Blocton. Note: The estimated wind gust of 70 knots is equivalent to 81 mph.

11 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ALABAMA, Central Barbour County 4 W Eufaula 24 2330CST 0 0 100.00K 0.00K Lightning

A lightning strike led to the complete loss of a home on AL-30, near the city of Eufaula. A resident of the home was able to escape unharmed. Etowah County 2 E Hokes Bluff 24 2345CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down onto power lines on Troy Road, east of Hokes Bluff.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cherokee County 1 E Centre 24 2353CST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down at several locations around the city of Centre.

A deepening storm system and associated cold front brought widespread severe thunderstorms, including at least 8 tornadoes, to central Alabama. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

ALABAMA, North Cullman County 5 SE Bremen 24 0800CST 0805CST 0 0 0.00K 0.00K Hail (1.75)

Golf ball size hail was reported near Colony. Lauderdale County 1 N Gravelly Spgs 24 1208CST 1213CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Trees were knocked down at Mile Marker 336 on the Natchez Trace Parkway.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lauderdale County 3 NE Waterloo 24 1324CST 1329CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Trees were knocked down on County Road 1. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lauderdale County 3 WNW Upper Green Hill 24 1346CST 1351CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Trees were knocked down along County Road 36 near Green Hill.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lauderdale County 1 S Killen 24 1449CST 1454CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Trees were knocked down along J C Mauldin Highway in Killen.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cullman County 1 S Midway 24 2200CST 2330CST 0 0 0.00K 0.00K Flash Flood

On County Road 678, an area approximately 20 feet deep and 40 feet wide was washed away. Natural gas lines, water mains, and phone lines were destroyed in the area.

12 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ALABAMA, North Dekalb County 1 NE Chavies 24 2315CST 25 0115CST 0 0 0.00K 0.00K Flash Flood

Flash flooding reported on Highway 35 between Rainsville and Fort Payne.

Multiple reports of thunderstorm wind damage, large hail and flash flooding were part of a larger regional severe weather/tornado outbreak across the lower Mississippi and Tennessee Valleys. Four damaging tornadoes tore tracks through north central and northeast Alabama during the evening and overnight hours of the 24th. Synoptic overview...

ALABAMA, Southeast Coffee County 3 SW Damascus 08 1110CST 3 75 0 0 Tornado (EF0)

An EF-0 tornado touched down just east of Alabama highway 87. The next area of damage was reported east-northeast from the initial touch down along county road 611 where a barn was destroyed along with several trees snapped. The final area of damage was reported north of Alabama highway 134 where a roof was taken off the porch of a house along with a portion of the roof over the kitchen. The overall path width of damage was around 75 yards, with maximum winds of 80 mph or EF-0 strength. A few discrete supercells and small lines of strong/severe thunderstorms developed across the region ahead of strong upper system and associated cold front.

ALABAMA, Southwest Washington County 1 WSW Malcolm 08 0615CST 0618CST 0.11 100 0 0 0.00K 0.00K Tornado (EF0)

A brief EF-0 tornado occurred on Happy Hill Road...just west of Highway 43. The tornado only affected one residence...producing minor damage. the most notable damage to the home was a blown out window...a damaged doorway...and minor roof damage. Portions of wood fencing was also damaged and patio furniture was thrown about. several pine trees were either snapped or downed as a result of the tornado. A few telephone poles were also damaged just to the northeast of the home on Happy Hill Road. The tornado path was 300 yards and the width was 75-100 yards. Maximum winds were 75 mph. A brief EF-0 tornado occurred in Washington County. The tornado path was 300 yards and the width was 75-100 yards. Maximum winds were 75 mph. Mobile County Citronelle 24 0141CST 0143CST 0 0 0.00K 0.00K Hail (1.00)

Clarke County Coffeeville 24 1045CST 1047CST 0 0 0.00K 0.00K Hail (0.88)

Clarke County 4 SSE Coffeeville 24 1045CST 1047CST 0 0 0.00K 0.00K Hail (1.75)

Mobile County Coden 24 1404CST 1406CST 0 0 0.00K 0.00K Hail (2.00)

Conecuh County Lenox 24 1407CST 1409CST 0 0 0.00K 0.00K Hail (1.75)

Severe thunderstorms produced large hail across southwest Alabama.

13 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ALASKA, Northern

AKZ213-214 St Lawrence Island Bering Strait - Yukon Delta 09 1930AKS 10 0500AKS 0 0 0.00K 0.00K Blizzard

AKZ207-209-211 Baldwin Peninsula & Selawik Valley - Chukchi Sea Coast - Southern Seward Peninsula Coast

10 0630AKS 1900AKS 0 0 0.00K 0.00K Blizzard

A 956 mb low in the western Bering Sea at 1000AKST on the 9th tracked to the northeast and gradually weakened to 976 mb near the Gulf of Anadyr by 0400AKST on the morning of the 11th. A strong occluded front associated with the low produced blizzard conditions on Saint Lawrence Island and along parts of the west coast of Alaska. Zone 207: Blizzard conditions were observed at Point Hope from approximately 1300AKST until 1800AKST on the 10th. The visibility at the Point Hope AWOS was frequently reduced to one quarter mile or less in snow and blowing snow. A peak wind gust of 41kt/47 mph was observed during this event. Blizzard conditions were also observed at Kivalina from approximately 1430AKST until 1900AKST. The visibility was frequently reduced to one quarter mile or less in snow and blowing snow. A peak wind gust of 43 kt/49 mph was observed during this event. Zone 209: Blizzard conditions were observed at Kotzebue on the 10th from approximately 1230AKST until 1630AKST. The visibility was frequently reduced to one quarter mile or less in snow and blowing snow. A peak gust of 47 kt/54 mph was observed at the Kotzebue ASOS. Zone 211: Blizzard conditions were observed at Nome on the 10th from approximately 0630 am AKST until 1200AKST. The visibility was frequently reduced to one quarter mile or less in snow and blowing snow. A peak wind gust of 44 kt/51 mph was observed at the Nome ASOS. Zone 213: Blizzard conditions were observed at Savoonga from approximately 1930AKST on the 9th until 0000AKST on the 10th. The AWOS was out of service during the event, and the blizzard conditions were observed by a member of the local fire department. Blizzard conditions were observed at Gambell from approximately 1930AKST on the 9th through 1530AKST on the 10th. The visibility at the Gambell AWOS was frequently reduced to one quarter mile or less in snow and blowing snow. There was a peak wind gust of 45kt/52 mph during this event. Blizzard conditions were also observed along the Bering Strait Coast. The blizzard conditions were observed at Wales from 1030AKST on the 10th, and likely continued into the late afternoon hours. After a peak wind gust of 60kt/69 mph was observed at the Wales AWSS, the power was lost. Blizzard conditions were also observed intermittently at Teller from approximately 0700AKST until 1200AKST. A peak wind gust of 53kt/61 mph was observed at the Teller AWSS. Zone 214: Blizzard conditions likely occurred across parts of the Yukon Delta. The observations from Cape Romanzof and Scammon Bay were unavailable at times during this event, but Hooper Bay on the Kuskokwim Delta observed blizzard conditions from approximately 2100AKST on the evening of the 9th through 0330AKST on the morning of the 10th, and similar conditions were likely observed along the coast west of Scammon Bay from approximately 2200AKST until 0500AKST. Occasional blizzard conditions were observed at Emmonak during the morning hours on the 10th, and near blizzard conditions were also observed inland at Saint Mary"s and Mountain Village during the morning of the 10th. A peak wind gust of 50 kt/58 mph was observed at the Hooper Bay AWOS. Winds of a similar magnitude were observed at the Scammon Bay AWSS, but no weather or visibility information was available.

ALASKA, Southern

AKZ181 Alaska Peninsula 05 0211AKS 0600AKS 0 0 0.00K 0.00K Blizzard

A storm in the Gulf of Alaska produced gusty northwest wind and persistent snow showers across the Alaska Peninsula resulting in blizzard conditions in Cold Bay.

AKZ155 Kuskokwim Delta 09 2130AKS 10 0400AKS 0 0 0.00K 0.00K Blizzard

14 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ALASKA, Southern

An intense Bering Sea storm pushed a front to the Bering Sea coast the evening of April 9th. This storm produced snow and blowing snow resulting in a blizzard in the Kuskokwim Delta.

12 0600AKS 0915AKS 0 0 0.00K 0.00K Blizzard

A strong Bering Sea storm produced blizzard conditions along over the Kuskokwim Delta the morning of April 12th.

AKZ155-195 Kuskokwim Delta - Pribilof Islands 15 0612AKS 0000AKS 0 0 0.00K 0.00K Blizzard

A strong large Bering Sea storm pushed a front across the Pribilof Islands to the Kuskokwim Delta April 15th. Strong wind and snow in advance of the front produced blizzard conditions in the Pribilof Islands and along the Kuskokwim Delta.

ARIZONA, Central and Northeast

AZZ011>013-015 Chuska Mountains and Defiance Plateau - Little Colorado River Valley in Coconino County - Little Colorado River Valley in Navajo County - Western Mogollon Rim 05 0900MST 1900MST 0 0 0.00K 0.00K High Wind

05 1300MST 2000MST 0 0 60.0K 0.00K Dust Storm

AZZ013 Little Colorado River Valley in Navajo County 05 1300MST 2000MST 0 0 0.00K 0.00K Dust Storm

AZZ017 White Mountains 05 1300MST 1700MST 0 0 0.00K 0.00K High Wind

A strong cold front approaching Arizona brought very strong winds to the Little Colorado River Valley. The strong winds also caused large areas of blowing dust and sand. Roads were closed due to low visibility in the blowing dust and sand.

AZZ012-013 Little Colorado River Valley in Coconino County - Little Colorado River Valley in Navajo County

21 0900MST 1800MST 0 0 0.00K 0.00K Dust Storm

21 1115MST 1800MST 0 0 0.00K 0.00K High Wind

AZZ013 Little Colorado River Valley in Navajo County 21 1300MST 1800MST 0 0 0.00K 0.00K High Wind

A strong cold front brought strong winds to northern Arizona. The strong winds created blowing dust which closed roads again.

AZZ004-009-015 Kaibab Plateau - Marble Canyon and Glen Canyon - Northeast Plateaus and Mesas from Highway 264 North - Western Mogollon Rim 28 0404MST 1805MST 0 0 0.00K 0.00K High Wind

15 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARIZONA, Central and Northeast AZZ012-013 Little Colorado River Valley in Coconino County - Little Colorado River Valley in Navajo County

28 1100MST 0000MST 0 0 0.00K 0.00K Dust Storm

28 1120MST 1820MST 0 0 0.00K 0.00K High Wind

AZZ010-016 Chinle Valley - Eastern Mogollon Rim 28 1200MST 0324MST 0 0 0.00K 0.00K High Wind

28 1300MST 2200MST 0 0 0.00K 0.00K Dust Storm

AZZ040 Northeast Plateaus and Mesas South of Highway 264 28 1300MST 2300MST 0 0 0.00K 0.00K Dust Storm

AZZ006-011-013> Black Mesa Area - Chuska Mountains and Defiance Plateau - Coconino Plateau - Grand Canyon Country 014-017-039>040 - Little Colorado River Valley in Apache County - Little Colorado River Valley in Navajo County - Northeast Plateaus and Mesas South of Highway 264 - White Mountains 28 1309MST 1150MST 0 0 100.0K 0.00K High Wind

A low pressure center moving across the western United States produced strong winds and significant blowing dust across northern Arizona. The winds caused power outages and the dust caused road closures.

AZZ014 Little Colorado River Valley in Apache County 29 0854MST 1515MST 0 0 0.00K 0.00K Dust Storm

AZZ013-014 Little Colorado River Valley in Apache County - Little Colorado River Valley in Navajo County

29 0900MST 1230MST 0 0 0.00K 0.00K High Wind

29 1330MST 1545MST 0 0 0.00K 0.00K Dust Storm

A low pressure system continued to move across the western United States and produced windy conditions for a second day in a row across portions of eastern Arizona.

ARIZONA, Northwest

AZZ001 Northwest Plateau 28 1657MST 0 0 0.00K 0.00K High Wind 28 1724MST 0 0 10.0K 0.00K Strong Wind 28 1908MST 0 0 0.00K 0.00K High Wind A powerful storm system brought widespread high winds to the Mojave Desert and southern Great Basin.

16 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARIZONA, South AZZ035 Cochise County 29 1100MST 1400MST 0 0 0.5K 0.00K High Wind

An unseasonably cold Pacific storm system entered Arizona on April 29th. As the storm and its associated cold front entered southeast Arizona, strong winds were focused well ahead of the cold front across Cochise County.

ARKANSAS, Central and North Central Woodruff County Riverside 01 0000CST 15 1500CST 0 0 5.00K 0.00K Flood

Heavy rainfall caused the Cache River at Patterson to remain above flood stage through the first half of April.

Woodruff County 1 N Augusta 01 0000CST 30 2359CST 0 0 5.00K 0.00K Flood

Heavy rainfall during late March, and additional rainfall in April allowed the White River at Augusta to remain above flood stage through April, and even into May. Heavy rainfall and planned reservoir releases caused the Cache and White rivers to rise above flood stage during late March and early April. One of the gauge sites remained above flood stage through the entire month of April, and even into May.

Faulkner County 2 E Mcgintytown 07 1220CST 0 0 0.00K 0.00K Hail (1.00)

Independence County 4 SSE Dota 07 1332CST 0 0 0.00K 0.00K Hail (1.00)

Izard County Sage 07 1332CST 0 0 0.00K 0.00K Hail (1.00)

Independence County 4 SSE Dota 07 1332CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

There was a public estimate of a 60 mph thunderstorm wind gust.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. White County 3 SE Steprock 07 1430CST 0 0 0.00K 0.00K Hail (0.75)

Garland County 2 SSE (HOT)Hot Spgs Arpt 07 1445CST 0 0 20.00K 0.00K Lightning

Lightning struck a utility pole in the 4700 block of Central Avenue in Hot Springs, causing several power lines to fall to the ground. Power was knocked out to a small area, including a car dealership and a motel. A small fire started on the roof of the motel, but heavy rain extinguished the fire before the fire department arrived on the scene.

Pulaski County 1 SE Marche 07 1533CST 0 0 0.00K 0.00K Hail (0.75)

Hail at Marche was reported as being from pea to jelly bean size.

Monroe County Holly Grove 07 1725CST 0 0 0.00K 0.00K Hail (1.00)

17 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central Arkansas County Almyra 07 1810CST 0 0 15.00K 0.00K Thunderstorm Wind (56EG)

Power lines and poles were blown down. A cold front arrived on the 7th and plowed into a warm, humid air mass over Arkansas. Some severe thunderstorms erupted during the afternoon and evening. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Conway County Lewisburg 23 1030CST 0 0 75.00K 0.00K Lightning

Lightning struck a house, starting a fire. Conway County 3 S Overcup 23 1035CST 0 0 10.00K 0.00K Lightning

Lightning struck a storage building, setting it on fire. Perry County 1 WSW Oak Grove 23 1145CST 0 0 0.00K 0.00K Hail (1.00)

Conway County Springfield 23 1210CST 0 0 0.00K 0.00K Hail (1.00)

Garland County Avant 23 1252CST 0 0 0.00K 0.00K Hail (1.00)

Perry County Perryville 23 1345CST 0 0 0.00K 0.00K Hail (1.75)

Perry County 1 N Perryville 23 1350CST 0 0 0.00K 0.00K Hail (1.00)

Nickel and quarter size hail fell in downtown Perryville. Conway County 1 N Oppelo 23 1350CST 0 0 50.00K 0.00K Thunderstorm Wind (61EG)

Two irrigation pivots were overturned between Oppelo and the Arkansas River.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Conway County Lewisburg 23 1402CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail fell at the Arkansas Highway 9 bridge over the Arkansas River.

Conway County 1 SW Lewisburg 23 1405CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Signs and barrels were blown over near the intersection of Arkansas Highways 9 and 113.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Pope County 2 W Atkins 23 1437CST 0 0 0.00K 0.00K Hail (1.00)

Van Buren County 4 S Fairbanks 23 1444CST 0 0 0.00K 0.00K Hail (1.75)

Golf ball size hail fell west of Quitman, near the Van Buren/Cleburne County line.

18 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central Pope County 2 NW Atkins 23 1504CST 1600CST 0 0 0.10K 0.00K Flash Flood

Parking lots were partially under water at Atkins High School and the old pickle plant.

Cleburne County Pearson 23 1545CST 0 0 0.00K 0.00K Hail (1.00)

Independence County South Side 23 1548CST 0 0 0.00K 0.00K Hail (1.00)

Independence County Cord 23 1550CST 0 0 30.00K 0.00K Thunderstorm Wind (52EG)

A home was damaged and a barn was destroyed. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Independence County Batesville Regl Arpt 23 1555CST 1635CST 0 0 0.00K 0.00K Heavy Rain

Rainfall totaled 2.30 inches in 40 minutes. Independence County 1 SSE Earnharts 23 1620CST 1 N Jamestown 1800CST 0 0 1.00K 0.00K Flash Flood

Arkansas Highway 14 was flooded near Locust Grove. Independence County 1 NE Batesville 23 1630CST 1730CST 0 0 100.00K 0.00K Flash Flood

Four feet of water covered the 800 block of S. St. Louis (U.S. Highway 167). Three feet of water covered Arkansas Highway 69 near the hospital. Cars stalled in the high water. Independence County Batesville 23 1630CST 0 0 0.00K 0.00K Hail (1.00)

Independence County Desha 23 1631CST 0 0 0.00K 0.00K Hail (1.00)

Independence County Cord 23 1640CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

A tree was blown down on Arkansas Highway 25. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Independence County Newark 23 1640CST 0 0 75.00K 0.00K Thunderstorm Wind (56EG)

A mobile home was destroyed when a large oak tree fell on it. An equipment shed was destroyed, causing damage to the farm equipment stored inside it. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Jackson County 1 N Swifton 23 1700CST 0 0 25.00K 0.00K Thunderstorm Wind (52EG)

A hay barn was blown down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

19 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central Jackson County Swifton 23 1705CST 0 0 0.00K 0.00K Hail (1.00)

Pike County Murfreesboro 23 1815CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

A few trees were blown down around Murfreesboro. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Clark County Arkadelphia 23 1945CST 0 0 0.00K 0.00K Hail (0.75)

Dime to penny size hail was reported in Arkadelphia. White County 1 S Kensett 24 0544CST 0 0 100.00K 0.00K Thunderstorm Wind (61EG)

Four houses sustained roof damage. A porch/carport was blown off one of the houses.Trees were blown down.

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

A porch/carport was torn off a home just south of Kensett (White County) on the morning of 4/24/10. Photo courtesy of John Robinson, Warning Coordination Meteorologist, WFO Little Rock. Bradley County Hermitage 24 0807CST 0 0 2.00K 0.00K Thunderstorm Wind (56EG)

The roof of a storage shed was blown into the street. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Bradley County 1 SSE Warren 24 0829CST 0 0 0.00K 0.00K Hail (1.00)

Hail fell in downtown Warren. White County Sunny Hill 24 0927CST 0 0 0.00K 0.00K Hail (0.75)

A cold front plowed into warm, humid air over Arkansas on the 23rd and 24th. The result was some severe storms, heavy rain, and flash flooding. Boone County Bergman 30 1615CST 0 0 0.00K Hail (0.75)

20 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central Marion County 1 NW Price Place 30 1649CST 1652CST 1.38 100 0 0 40.00K 0.00K Tornado (EF1)

An EF1 tornado caused roof and siding damage to six homes at Price Place. Numerous trees were uprooted or snapped. The tornado exited Marion County, Arkansas, north-northeast of Price Place and crossed into Ozark County, Missouri, south- southeast of Pontiac.

Scott County 1 ENE Brawley 30 1705CST 0 0 10.00K 0.00K Hail (1.75)

Golf ball size hail fell in the Lake Hinkle area. Johnson County 1 WSW Hickeytown 30 1705CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

A shop roof was damaged at Piney Bay. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Baxter County 3 S Three Brothers 30 1753CST 0 0 5.00K Thunderstorm Wind (52EG)

A spotter reported winds estimated over 60 mph, with trees down.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Conway County 1 ESE Gobblers Pt 30 1756CST 3 N Cleveland 1803CST 4.07 400 0 0 100.00K 0.00K Tornado (EF1)

An EF1 tornado blew down hundreds of trees and took the roof off a cabin. Three large culverts, 7 feet in diameter and nearly 30 feet long, alongside the road awaiting installation were picked up and tossed by the tornado. Two culverts went 80 yards in one direction, while the other went 300 yards in a different direction. The tornado exited Conway County north of Cleveland and entered Van Buren County south-southeast of Liberty Springs.

Van Buren County 3 SSE Liberty Spgs 30 1803CST 2 SE Archey 1830CST 16.21 700 1 15 4.00M 0.00K Tornado (EF3)

This tornado exited Conway County north of Cleveland and entered Van Buren County south-southeast of Liberty Springs. The tornado, rated EF3 in Van Buren County, caused extensive damage to the town of Scotland, especially in areas along Lo Gap Road. A 67 year-old woman was killed when she was thrown from her home. Approximately 15 others were injured. A damage assessment by the Arkansas Department of Emergency Management indicated 13 homes (including houses and mobile homes) destroyed, 3 homes with major damage, 7 homes with minor damage, and 11 homes affected. In addition, Scotland's community center was destroyed, and barns, outbuildings, and a gas well were damaged. Thousands of trees and numerous power lines were blown down. F67PH

House destroyed by tornado in Scotland (Van Buren Co.) on 4/30/10. Photo courtesy: John Robinson, Little Rock WCM. 21 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central Grant County 3 SW Belfast 30 1846CST 1852CST 2.78 75 0 0 40.00K 0.00K Tornado (EF1)

An EF1 tornado caused roof damage to a house and a church. Half of a barn roof was blown off and trees were blown down. This was the first of five tornadoes spawned by the same supercell thunderstorm.

Van Buren County 3 NNE Rubek 30 1848CST 1850CST 1 150 0 0 90.00K 0.00K Tornado (EF1)

This EF1 tornado was spawned by the same supercell thunderstorm that produced the EF3 tornado at Scotland. A mobile home was destroyed, with the roof of the mobile home blowing up against a barn. A recreational vehicle was overturned, hitting the side of a mobile home and damaging it. Trees and power lines were blown down. The tornado exited Van Buren County northeast of Rubek and entered Stone County east-southeast of Old Lexington.

Stone County 1 ESE Old Lexington 30 1850CST 2 NNE Fox 1905CST 7.87 150 0 0 75.00K 0.00K Tornado (EF1)

This tornado exited Van Buren County northeast of Rubek and entered Stone County east-southeast of Old Lexington. One house had its roof damaged and a window blown out, and another house had roof damage. The porch and the roof of a mobile home were damaged. Sheds were destroyed and barns were damaged. Trees and power lines were blown down. The city park at Fox suffered considerable damage.

Conway County 1 SW Lick Mtn 30 1855CST 3 E Austin 1916CST 10.63 200 0 0 1.85M 0.00K Tornado (EF2)

A Red Cross survey found the following damage from this EF2 tornado: 12 houses and 2 mobile homes destroyed, 8 houses with major damage, 5 houses and 2 mobile homes with minor damage, and 8 houses affected. Other damage included: roof damage to two churches, a silo thrown against one church, a number of barns and outbuildings damaged, and numerous trees and power lines blown down. The tornado exited Conway County east of Austin and entered Van Buren County north- northwest of Whipple.

A house was destroyed by an EF2 tornado just north of Center Ridge (Conway County) on the evening of 4/30/10. Photo courtesy of John Robinson, Warning Coordination Meteorologist, WFO Little Rock. Saline County 5 SSW Sardis 30 1859CST 1904CST 2.13 350 0 0 100.00K 0.00K Tornado (EF1)

This was the second of five tornadoes spawned by the same supercell thunderstorm. A couple of roofs and some outbuildings were damaged. Trees were blown down. The tornado exited Saline County south of Sardis and entered Grant County northwest of Ico.

22 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central Pope County 1 E Oakland Hgts 30 1903CST 0 0 Hail (1.00)

Grant County 4 NW Ico 30 1904CST 1905CST 0.23 350 0 0 10.00K 0.00K Tornado (EF1)

This tornado exited Saline County south of Sardis and moved through a tiny portion of Grant County before re-entering Saline County south of Sardis. In Grant County, a few trees were blown down.

Saline County 2 S Sardis 30 1905CST 3 NE East End 1917CST 8.03 550 0 8 3.00M 0.00K Tornado (EF2)

This tornado exited Grant County northwest of Ico and re-entered Saline County south of Sardis. The tornado traveled through the East End community, causing EF2 damage. A Red Cross survey of the damage indicated: 4 houses and 11 mobile homes destroyed, 11 houses and 3 mobile homes with major damage, 26 houses and 4 mobile homes with minor damage, and 16 houses and 13 mobile homes affected. A fire station in East End was destroyed and part of the roof was torn off a church. Two businesses also suffered damage. In addition, numerous trees and power lines were blown down. Eight people were injured. The tornado exited Saline County northeast of East End and entered Pulaski County south-southeast of Landmark.

The tornado was spotted to the southwest of East End (Saline County) on the evening of 4/30/10. Photo is courtesy of Leslie Hess. Montgomery County Story 30 1912CST 0 0 Hail (1.75)

Golf ball size hail fell on Arkansas Highway 27. Van Buren County 1 NNW Whipple 30 1916CST 1918CST 1.14 100 0 0 60.00K 0.00K Tornado (EF1)

This tornado exited Conway County east of Austin and entered Van Buren County north-northwest of Whipple. A motor home and three recreational vehicles were blown over. Trees were blown down.

Pulaski County 3 SSE Landmark 30 1917CST 1 SSE Sweet Home 1931CST 7.6 500 0 0 1.15M 0.00K Tornado (EF1)

23 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central

This tornado exited Saline County northeast of East End and entered Pulaski County south-southeast of Landmark. A Red Cross survey of the tornado damage in Pulaski County indicated: 3 houses and 6 mobile homes destroyed, 2 houses and 10 mobile homes with major damage, 10 houses and 16 mobile homes with minor damage, and 23 houses and 22 mobile homes affected. In addition, numerous trees and power lines were blown down.

Scott County 1 SE Blue Ball 30 1930CST Union Hall 2100CST 1 0 20.00K 0.00K Flash Flood

A 63 year-old man drowned during a flash flood near Union Hill. He tried to drive his pickup truck across a small low-water bridge, but the truck was swept into the creek. Witnesses said the man tried to escape through the driver's window, but he was caught by the current and dragged downstream. M63VE

Pulaski County 2 ESE College Station 30 1935CST 4 SSE Jacksonville 1956CST 10.64 150 0 0 250.00K 0.00K Tornado (EF0)

This was the third of five tornadoes spawned by the same supercell thunderstorm. Industrial buildings in the Little Rock River Port had damage to sheet metal on their sides and roofs. The roof of one home was damaged, as were some farm outbuildings. Trees and power lines were blown down. The tornado exited Pulaski County south-southeast of Jacksonville and entered Lonoke County north of Kerr.

Cleburne County 2 NW Shiloh 30 1950CST 0 0 50.00K 0.00K Thunderstorm Wind (56EG)

A number of trees were blown down and several homes sustained roof damage on the south side of the town of Greers Ferry.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Lonoke County 3 N Kerr 30 1956CST 3 NNE Jacksons Store 2032CST 19.03 1000 0 0 4.60M 0.00K Tornado (EF2)

This tornado exited Pulaski County south-southeast of Jacksonville and entered Lonoke County north of Kerr. In Lonoke County, the tornado affected the South Bend and Furlow communities, then continued to the northeast, passing south of Cabot and east of Ward. A Red Cross survey indicated: 20 houses and 14 mobile homes destroyed, 27 houses and 6 mobile homes with major damage, 50 houses and 22 mobile homes with minor damage, and 15 houses and 14 mobile homes affected. In addition, numerous trees and power lines were blown down. The tornado exited Lonoke County north-northeast of Jacksons Store and entered White County southeast of Beebe.

A house 5 miles east-southeast of Ward (Lonoke County) was destroyed by an EF2 tornado on the evening of 4/30/10. Photo courtesy of Dan Koch, Information Technology Officer/Meteorologist, WFO Little Rock.

24 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central White County 4 SE Beebe 30 2032CST 2 SSW Mc Rae 2040CST 5.01 350 0 0 375.00K 0.00K Tornado (EF1)

This tornado exited Lonoke County north-northeast of Jacksons Store and entered White County southeast of Beebe. A Red Cross survey indicated the following damage in White County: two houses and one mobile home were destroyed, two houses had major damage, one house and two mobile homes had minor damage, and two other houses were affected. Numerous trees were blown down.

White County 1 S Kensett 30 2055CST 2101CST 2.41 150 0 0 200.00K 0.00K Tornado (EF1)

This was the fourth of five tornadoes spawned by the same supercell thunderstorm. Roofs of residences and outbuildings were damaged. Numerous trees were blown down. White County 1 WNW Judsonia 30 2112CST 0 2 0.00K 0.00K Lightning

Two teenagers were injured by lightning in an old storm shelter behind a residence in Judsonia. The victims were a female 13 years old and a male 18 years old. They were sitting on metal chairs when they were injured.

Two teenagers were injured by lightning in an old storm cellar in Judsonia (White County) on the evening of 4/30/10. They were sitting on metal folding chairs at the time. Photo courtesy of John Lewis, Senior Forecaster, WFO Little Rock. White County 1 ENE Searcy 30 2118CST 1 WNW Doniphan 2215CST 0 0 0.10K 0.00K Flash Flood

Race Street was flooded in Searcy. White County 1 ENE Searcy 30 2118CST 1 WNW Doniphan 2215CST 0 0 0.10K 0.00K Flash Flood

Race Street was flooded in Searcy. Pulaski County 1 S Amboy 30 2126CST 1 SSW Levy 2226CST 0 0 0.00K 0.00K Flash Flood

The intersection of Percy Machin Dr. and West Pershing Blvd. was flooded.

25 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Central and North Central Jackson County 2 W Weldon 30 2140CST 2 NNE Blackville 2154CST 7.74 1000 0 0 1.00M 0.00K Tornado (EF3)

This was the fifth of five tornadoes spawned by the same supercell thunderstorm. This tornado passed through the south side of Shoffner. A church was destroyed and a power substation was damaged. A hangar at a flying service was destroyed and an aircraft used for agricultural application was damaged. A mobile home was overturned and destroyed. Significant roof damage occurred to homes. A grain elevator was badly damaged. An irrigation pivot was overturned. Outbuildings were destroyed or damaged. Trees were blown down.

Dallas County 2 WNW Princeton 30 2145CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Trees and power lines were reported down east of Manning on Arkansas Highway 8.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Dallas County 1 W Carthage 30 2152CST 2155CST 1.87 50 0 0 40.00K 0.00K Tornado (EF1)

A mobile home was blown off its foundation and had part of its roof blown off, windows blown out, and limbs thrown through its roof. Power lines, power poles, and trees were blown down.

Lonoke County 3 E Mountain Spgs 30 2200CST 1 NE Jacksons Store 2359CST 0 0 20.00K 0.00K Flash Flood

Flash flooding caused washouts on some county roads. Woodruff County Fitzhugh 30 2240CST 0 0 Hail (1.00)

Moisture from the Gulf of Mexico surged into Arkansas at the end of April, so conditions in the state became warm and humid. On the 30th, a strong area of low pressure aloft approached from the west, resulting in the development of thunderstorms. Wind shear, a change in wind direction and speed with height, was present. This created a favorable environment for the formation of tornadoes.

ARKANSAS, East Lawrence County Alicia 07 1354CST 1406CST 0 0 0.00K Hail (1.00)

Nickel to quarter size hail fell in Alicia. The hail fell for 5 to 10 minutes.

Greene County Stanford 07 1430CST 1435CST 0 0 0.00K Hail (0.75)

Greene County 1 NE Lafe 07 1444CST 1515CST 0 0 0.00K Hail (0.88)

Penny to nickel size hail fell north of Paragould. Greene County 1 NW Paragould 07 1448CST 1453CST 0 0 0.00K Hail (1.00)

Quarter size hail covered the ground in Paragould.

26 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, East Greene County 1 ENE Paragould Muni Arpt 07 1505CST 1510CST 0 0 0.00K Hail (1.75)

Golf ball hail fell for 30 seconds just north of Paragould. Greene County 1 ENE Paragould Muni Arpt 07 1505CST 2 N Paragould 1510CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked a tree down onto a house just north of Paragould.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Greene County 1 NNW Marmaduke 07 1515CST 1520CST 0 0 0.00K Hail (1.75)

Dime to golf ball size hail fell in Marmaduke. Greene County 1 NNW Marmaduke 07 1515CST 1525CST 0 0 0.00K Thunderstorm Wind (52EG)

Straight line winds destroyed 2 mobile homes and 3 houses sustained roof and siding damage in Marmaduke. Several commercial buildings also sustained roof and siding damage. In addition, several tree limbs were knocked down. Winds were estimated at 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Clay County 1 SE Rector 07 1522CST 1527CST 0 0 0.00K Hail (1.00)

Craighead County 1 NNW Oak Ridge 07 1525CST 1530CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Straight line winds flipped and tossed about a 14 ft. flat bottom boat which had no motor on it. The winds impaled it up onto a second story I-Beam support structure. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Craighead County Bay 07 1618CST 1 N Davis 1623CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked a tree down onto a house in Bay. Power lines were also knocked down in the area.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Craighead County 2 N Jonesboro 07 1628CST 1900CST 0 0 0.00K 0.00K Flash Flood

Heavy rain produced flash flooding in Jonesboro. The intersection of Matthews Avenue and Madison Street was flooded as well as Aggie Road and Azalea Lane. In addition, Burke Avenue and Culberhouse Street was flooded.

Mississippi County 1 NNW Blytheville 07 1750CST 2030CST 0 0 0.00K 0.00K Flash Flood

Heavy rain flooded Walnut Street in Blytheville causing the street to be impassable.

27 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, East Crittenden County Horseshoe Lake 07 1827CST 2 WNW Seyppel 1832CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds blew several trees and power lines down in the Horseshoe Lake area. Approximately, 700 people were without power during the peak outage. A cold front moved through the Mid-South during the afternoon and evening hours of April 7th, 2010. Showers and thunderstorms developed out ahead of the front. Some storms became severe producing large hail, damaging winds, and flash flooding. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lawrence County 2 SSE Strawberry 23 1655CST 2 W College City 1720CST 0 0 150.00K 0.00K Thunderstorm Wind (74EG)

Straight line winds completely destroyed a shop building, a tractor barn and damaged wooden high voltage transmission poles and lines along County Road 410 near College City. In addition, large trees were toppled at Williams Baptist College. Winds were measured in College City at 67 mph. A tree was knocked down on Highway 25 between Strawberry and Saffell as well. In Alicia, large wooden high voltage transmission poles and lines were damaged. Scattered damage to trees, small sheds, and outbuildings occurred along Highway 230, Highway 91 and Highway 228 between Alicia and Sedewick. Sheet metal from the Morgan Portable Building plant was blown onto the Walnut Ridge Regional Airport grounds. A few signs at the airport were damaged as well. A home on County Road 723 received major damage as the garage and sunroom were destroyed and part of the roof was blown off. The school district in Hoxie reported damage to an awning at the elementary school and to the roof of a dug out and ticket booth at the athletic fields. Several sections of fence and a few signs were damaged on campus as well.

Note: The estimated wind gust of 74 knots is equivalent to 85 mph.

A tractor barn destroyed by straight line winds near College City, Lawrence County Arkansas. Photo taken by Zwemer Ingram. Lawrence County 3 N Lynn 23 1720CST 4 W Powhatan 2015CST 0 0 25.00K 0.00K Flash Flood

Heavy rain produced flash flooding all around Lawrence County. At least six inches of water covered roadways near College City. A culvert was washed out on Highway 25, north of Lynn. In addition, Highway 25 between Lynn and Lake Charles was completely underwater as well as Fowler Road in Lawrence County. Both roads were closed as a result.

Craighead County 2 N Herndon 23 1729CST 1734CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Straight line winds blew a 40 ft. section of a fence down at Lake Frierson State Park. In addition, a park vehicle was also damaged with a few shingles blown off of a pavilion. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

28 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, East St. Francis County 1 WNW Madison 24 0950CST 0957CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked a few trees down just north of Madison.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Mississippi County 1 NW Roseland 24 1305CST 1 NNE Deese 1308CST 2.13 50 0 0 3.00K 0.00K Tornado (EF0)

A tornado briefly touched down west of County Road 305, approximately 3 miles southeast of Manila. The tornado tracked north-northeast for about 2 miles and moved across Mallard Lake. The tornado track was within Big Lake Wildlife Management Area. A few trees were snapped as a result of the tornado.

A warm front lifted north across the Mid-South during the afternoon and evening hours of April 23rd, 2010. Behind the warm front, warm moist air from the Gulf of Mexico made for a very unstable atmosphere. Numerous showers and thunderstorms developed across Eastern Arkansas and North Mississippi during the evening hours of April 23rd. Some storms became severe producing damaging winds and flash flooding. These storms pushed out of the area by the early morning hours of April 24th, 2010 as a strong low pressure developed across the Southern Plains and pushed east with an associated cold front. Additional showers and thunderstorms developed ahead of the low pressure system and cold front during the day on April 24th. Numerous storms became severe producing large hail, damaging winds, flash flooding and tornadoes. The storms moved out of the area by the mid-evening hours.

ARKANSAS, Northwest Carroll County 1 WNW Eureka Spgs 23 1455CST 0 0 0.00K 0.00K Hail (0.88)

Isolated thunderstorms, some producing large hail, affected parts of far Northwest Arkansas during the afternoon of April 23, 2010. Madison County Alabam 24 1154CST 0 0 0.00K 0.00K Hail (0.75)

Carroll County Berryville 24 1217CST 0 0 1.00K 0.00K Thunderstorm Wind (56EG) 2 NE Green Forest Strong wind from a line of thunderstorms blew down a power pole in Berryville and blew down trees near Green Forest.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Carroll County Grandview 24 1220CST 0 0 0.00K 0.00K Thunderstorm Wind (58EG)

Strong thunderstorm wind blew down trees in and to the northeast of Grandview.

Thunderstorms affected parts of far Northwest Arkansas during the afternoon of April 24, 2010, resulting in small hail and isolated damaging winds. Note: The estimated wind gust of 58 knots is equivalent to 67 mph. Washington County 5 SSE Prairie Grove 30 1443CST 0 0 0.00K 0.00K Hail (1.75)

Carroll County 1 NE Green Forest 30 1525CST 0 0 0.00K 0.00K Hail (1.00)

Thunderstorms occurred across Northwest Arkansas on the afternoon of April 30, 2010, some producing large hail.

29 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Southeast Ashley County 2 E Hamburg 24 0510CST 0 0 0.00K 0.00K Hail (1.00)

Ashley County 2 W Trafalgar 24 0529CST 0531CST 0 0 0.00K 0.00K Hail (1.25)

Chicot County Dermott 24 0540CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

An estimated 60 mph wind gust was reported at Dermott. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Chicot County Dermott 24 0544CST 0 0 0.00K 0.00K Hail (1.00)

Ashley County 2 WNW Fountain Hill 24 0642CST 0644CST 0 0 0.00K 0.00K Hail (1.50)

Walnut sized hail was reported west of Fountain Hill. Chicot County 1 NW Dermott 24 0738CST 1000CST 0 0 100.00K 0.00K Flood

Highway 35 west and streets in the city of Dermott were flooded. Traffic was routed around the city. Two and half feet of water was reported in the business district of Dermott and two feet of water was observed on Highway 35 west.

A potent upper disturbance brought severe weather to extreme southeast Arkansas on the morning of the 24th. These storms produced walnut sized hail in Ashley County. These storms also produced 60 mph winds, and flash flooding with 2.5 feet of water around Dermott in Chicot County.

ARKANSAS, Southwest Little River County 3 SSE Millwood Lake 23 1755CST 0 0 0.00K 0.00K Hail (1.00)

Hail was reported in the community of Yarborough Landing. Little River County 1 W Millwood 23 1800CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was observed at Beards Bluff Park just east of Millwood Dam.

Hempstead County De Ann 23 1825CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A massive oak tree in a church yard fell across Hempstead County Road 228. The tree was nearly 80 feet tall.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Miller County 6 NNW Brightstar 23 1855CST 1 SSW Fouke 1913CST 10.08 100 0 0 25.00K 0.00K Tornado (EF0)

This tornado was a continuation from the tornado that first touched down in Cass County, Texas. The storm continued into Miller County, as an EF0 tornado. As the tornado moved into Miller County, several large trees limbs and branches were ripped down by the tornado along Miller County Roads 152 and 24. The tornado entered Fouke, Arkansas at around 8:10 PM CDT, where it snapped several large trees in a nearby field and caused property damage when it blew a large tree limb onto the bed of a truck and into the corner of a house. The tornado lifted as it exited Fouke. Maximum winds are estimated at 70-80 mph.

30 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Southwest Nevada County Boughton 23 1905CST 0 0 0.00K 0.00K Funnel Cloud

A funnel cloud was reported northeast of Prescott, Arkansas.

Miller County 1 SW Fouke 23 1911CST 0 0 0.00K 0.00K Hail (1.00)

Hail was reported in the city of Fouke, Arkansas. Miller County 1 SE Fouke 23 1912CST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail was reported on County Road 43 on the east side of Fouke, Arkansas.

Lafayette County Stamps 23 1935CST 0 0 20.00K 0.00K Thunderstorm Wind (53EG)

A huge oak tree fell across a residents driveway crushing a truck and rested beside the house.

Note: The estimated wind gust of 53 knots is equivalent to 61 mph. Miller County 2 NE Texarkana 24 0240CST 0 0 0.00K 0.00K Hail (0.75)

Hail was reported on State Line Road. Hempstead County 1 E Hope 24 0302CST 0 0 0.00K 0.00K Hail (1.00)

Union County 1 N Huttig 24 0615CST 0 0 0.00K 0.00K Hail (1.75)

A disturbance moving ahead of a strong upper level storm system generated scattered thunderstorms on the 23rd. Some storms reached severe limits producing large hail. A few supercells showed some rotation...and tornadoes were reported across portions of southwest Arkansas during the evening hours of April 23rd. This activity continued to produce severe thunderstorms during the early morning hours of April 24th as well.

Sevier County 1 W Gillham 30 1725CST 0 0 0.00K 0.00K Hail (1.75)

Hail was measured just west of Gilliam along Hwy. 71. Howard County 1 WSW Dierks 30 1937CST 1941CST 1.85 150 0 0 200.00K 0.00K Tornado (EF2)

An EF2 tornado touched down in Dierks, Arkansas destroying a laundrymat and damaging numerous homes and businesses. Numerous trees were snapped or uprooted along the track which started on the southwest side of town where a storage building was destroyed. The tornado crossed the town downing trees and powerlines. Shingles were torn off of numerous homes within the town. The tornado continued northeast and ripped a 100 ft section of roof off of a chicken house. The tornado lifted northeast of the chicken house. Maximum winds are estimated at 105-115 mph.

31 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ARKANSAS, Southwest

Small cinderblock laundrymat destroyed. Photo taken by the WCM from a blackberry. Sevier County Lockesburg 30 2104CST 0 0 0.00K 0.00K Hail (1.00)

Howard County 4 NW Center Pt 30 2124CST 2125CST 0.81 75 0 0 5.00K 0.00K Tornado (EF0)

An EF0 tornado briefly touched down north of Centerpoint Arkansas along Highway 278. One barn had a portion of its roof removed and a small outbuilding sustained minor damage. Several trees had large limbs broken out and a few trees were partially snapped. Maximum winds are estimated at 60-65 mph.

A very unstable airmass developed across much of the Southern Plains and Lower Mississippi Valley during the afternoon and evening hours of April 30th. A strong upper level trough moved into the Southern Plains during the afternoon and sparked strong to severe thunderstorms across much of southeast Oklahoma into northeast Texas and southwest Arkansas. Strong deep layer shear and low level directional shear was present during the evening and this resulted in storms developing supercellular characteristics. Large hail and isolated tornadoes developed with this activity across the region.

CALIFORNIA, North Central

CAZ068-069 Mt Shasta/Western Plumas County - West Slope Northern Sierra Nevada

02 1900PST 03 0800PST 0 0 0.00K 0.00K Winter Storm

A late season storm.

CAZ013-063>064 Burney Basin/Eastern Shasta County - Clear Lake/Southern Lake County - Mountains Southwest Shasta County to Northern Lake County - Shasta Lake/North Shasta County 04 1800PST 05 0300PST 0 0 0.00K 0.00K Winter Storm

CAZ066>069 Motherlode/Camptonville to Groveland - Mt Shasta/Western Plumas County - Northeast Foothills/Sacramento Valley - West Slope Northern Sierra Nevada 05 0000PST 1400PST 0 0 0.00K 0.00K Winter Storm

A winter storm.

32 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

CALIFORNIA, North Central CAZ068-069 Mt Shasta/Western Plumas County - West Slope Northern Sierra Nevada

11 2000PST 12 1000PST 0 0 0.00K 0.00K Winter Storm

A winter storm.

27 0900PST 28 0200PST 0 0 0.00K 0.00K Winter Storm

CAZ069 West Slope Northern Sierra Nevada 27 1400PST 28 0500PST 0 0 0.00K 0.00K Winter Storm

A winter storm.

CALIFORNIA, Northeast

CAZ073 Mono 02 1630PST 2130PST 0 0 0.00K High Wind

An intense and fast-moving system moved through Washington and Oregon on the 2nd and into Idaho on the 3rd. This resulted in strong winds for eastern California on the 2nd.

CAZ071 Lassen/Eastern Plumas/Eastern Sierra 04 1500PST 05 0200PST 0 0 0.00K Winter Weather

CAZ072-073 Greater Lake Tahoe Area - Mono 04 1600PST 05 0900PST 0 0 0.00K Heavy Snow

A strong system dropped out of the Gulf of Alaska and produced heavy snow, especially west of highway 395 in Mono County and near the Sierra crest for the Lake Tahoe area.

CAZ073 Mono 11 1400PST 2300PST 0 0 0.00K Winter Weather

A storm originating in the Gulf of Alaska on the 9th dropped south to off the California coast on the 11th before moving into California and Nevada on the 12th.

CAZ072-073 Greater Lake Tahoe Area - Mono 27 0200PST 1200PST 0 0 0.00K High Wind

A powerful storm slammed into the region on the 27th and 28th bringing damaging winds to the Lake Tahoe area along with substantial rain and snow to northeast California.

CALIFORNIA, Northwest

CAZ003-076 Mendocino Interior - North Coast Interior - Upper Trinity River

04 0900PST 05 0300PST 0 0 0.00K 0.00K Heavy Snow

A winter storm produced heavy snow throughout the higher elevations of northwestern California.

33 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

CALIFORNIA, South Central Tulare County 7 ESE Camp Nelson 03 2325PST 0 0 0.00K 0.00K Heavy Rain 04 Twenty four hour rainfall of 1.59 inches fell, plus an additional 2 inches of snow, at Ponderosa Basin.

CAZ096-097 South Sierra Mountains - Tulare County Mountains 04 1600PST 05 1100PST 0 0 0.00K 0.00K Winter Storm

CAZ093-095 Kern County Mountains - South Sierra Foothills 05 0200PST 1700PST 0 0 0.00K 0.00K Winter Weather

April began with an upper-level trough moving through interior central California. Rain and mountain snow showers continued into the 2nd, before the next storm arrived. This next storm reached the region during the evening of April 4th, and continued into the next day. The cold front moved quickly through interior central California, but in its wake, a pool of cold, unstable air settled over the San Joaquin Valley and adjacent mountains. A late-morning ice-pellet shower fell on Hanford, and small hail fell on parts of central Madera, Fresno and Tulare counties during the afternoon. The snow level dropped as low as 2500 feet during the morning of April 4th, with snow falling on some Sierra Nevada foothill communities, including Oakhurst (which reported up to 3 inch accumulations) and Springville. Some road closures and delays were reported in the foothills. In the central and southern San Joaquin Valley, storm total rainfalls ranged from 0.83 inch at Merced to a mere 0.08 inch at Bakersfield. In the Southern Sierra Nevada, 20 inches of snow fell at Lodgepole, and new snow accumulations were estimated at as much as 29 inches in the high country. Further south, 3.5 inches of snow fell at Bear Valley Springs in the Tehachapi Mountains. Some road closure and delays were reported in Tehachapi Mountain communities. In the Kern County deserts, winds gusted to 50 mph as the storm moved through.

CAZ096-097 South Sierra Mountains - Tulare County Mountains 11 1700PST 12 0400PST 0 0 0.00K 0.00K Winter Storm

CAZ095 Kern County Mountains 11 2300PST 12 0700PST 0 0 0.00K 0.00K Winter Weather

Fresno County 1 E Fig Garden Vlg 12 1457PST 0 0 0.00K 0.00K Hail (0.75) 7 NNE Herndon Accumulating hail up to three quarters of an inch occurred in southern Madera and Northern Fresno counties. Accumulations of around 2 to 3 inches were common along Avenue 12 east of Madera Ranchos, and south to the suburbs of Fresno and Clovis.

Fresno County 1 NW Hammond 12 1500PST 0 0 200.00K 0.00K Lightning

Lightning struck a condominium building on Van Ness Avenue just north of Shaw Avenue in Fresno. Two units were destroyed. Damage was estimated between 100,000 to 200,000 dollars. Fresno County 1 NW Hammond 12 1509PST 0 0 0.00K 0.00K Funnel Cloud

The public reported funnel clouds in the vicinity of Jenson and Dickerson in Fresno.

Fresno County Clovis 12 1530PST 1630PST 0 0 0.00K 0.00K Heavy Rain

Street flooding occurred from heavy rain at the corner of Gettysburg and Willow in Clovis. Other reports of minor urban street flooding were reported around the Fresno Metro area. Skies cleared out on April 6th, except for some upslope mountain clouds, as the trough moved east and an eastern Pacific ridge began to build into California. Interior central California experienced tranquil weather for the next several days, but a potent late-season storm was dropping out of the Gulf of Alaska.

34 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

CALIFORNIA, South Central

The storm moved into central California on April 11th. This was a much wetter storm than that of the week before, and the two- day rainfall totals for several central and southern San Joaquin Valley sites were close to, or over, the normal rainfall for the entire month of April. Gusty winds developed over the San Joaquin Valley during the afternoon of the 11th as the cold front pushed through. Winds gusted to 56 mph at Avenal on the west side of the Valley, while gusts to 46 mph were measured at Meadows Field in Bakersfield. An aircraft taking off from the Taft Municipal Airport was caught in one of these gusts. The aircraft was flipped over and crashed. The pilot only suffered minor injuries, but the aircraft had serious damage.

Thunderstorms developed over the central and southern San Joaquin Valley during the afternoon and early evening of April 12th, with hail up to three quarters of an inch in diameter. Lightning struck a condominium building in Fresno during the late afternoon, starting a fire that destroyed two units.

Another 12 to 18 inches of snow fell on the Southern Sierra Nevada, with both Lodgepole and Grant Grove reporting 15 inches. In the Tehachapi Mountains, up to 6 inches of new snow fell at Pine Mountain Club, and 4 inches at Cuddy Valley.

With abundant ground moisture from the rains, patchy dense fog developed during the early morning of April 13th. Isolated patches of fog formed the next morning, mainly in Merced County; otherwise the central and south Valley remained fog free as a drier airmass moved into the region. An upper-level ridge brought mostly clear skies and near- to slightly-above normal temperatures to interior central California through the 19th.

Tulare County 1 N Three Rivers 19 2249PST 0 0 0.00K 0.00K Heavy Rain 20 The rainfall for the 24 hour period was 2.09 inches.

CAZ096-097 South Sierra Mountains - Tulare County Mountains 20 0800PST 0400PST 0 0 0.00K 0.00K Winter Storm

CAZ089>092 East Central San Joaquin Valley - Southeast San Joaquin Valley - Southwest San Joaquin Valley - West Central San Joaquin Valley 20 1100PST 2000PST 0 0 150.0K 0.00K Strong Wind

CAZ095 Kern County Mountains 21 1700PST 0 0 0.00K 0.00K Winter Weather 22 Another potent, cold Pacific storm reached central California during the late afternoon and evening of April 19th, bringing another round of moderate to locally heavy precipitation to the central California interior. The heaviest rain fell over much of the region on the 20th, but the low stalled over south central California the next day. This allowed an upper-level disturbance rotating around the low to bring another round of moderate precipitation to the area on April 21st. A line of moderate showers pushed into the Tulare County foothills. 2.77 inches of rain fell at Milo during the 24 hours ending at midnight on April 20th, while 2.07 inches fell at Three Rivers during the same period. Lemon Cove had a storm total rainfall of 1.92 inches. Two inches of snow fell on Tehachapi during the early morning of April 21st, and snow was reported as low as 2400 feet near Springville in Tulare County, and near 2600 feet at Mountain Mesa in Kern County. Another 21 inches of new snow fell at Lodgepole, but this amount may have been the result of the line of showers that moved into Tulare County. Elsewhere in the Southern Sierra Nevada, estimated new snow accumulations mostly were in the 9 to 18 inch range, with a few higher amounts. Small pea sized hail fell at Avenal during the afternoon of April 20th, with similarly sized hail fall in Lamont that evening. Winds in the central and southern San Joaquin Valley gusted as high as 45 mph, toppling trees and downing power lines. Winds gusted to around 55 mph in the Indian Wells Valley. The low finally began moving east of the region on April 22nd, although a few residual showers remained over the central and southern San Joaquin Valley and the adjacent mountains. High pressure began building into California on the 23rd, with the high temperatures at both Bakersfield and Fresno up 12 degrees from the previous day. Temperatures continued to warm through April 26th, which was the warmest day of the month at both Bakersfield and Fresno with both cities reaching 85 degrees.

28 1200PST 29 0900PST 0 0 100.0K 0.00K Winter Weather

35 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

CALIFORNIA, South Central CAZ098 Indian Wells Valley 28 1500PST 1900PST 0 0 100.0K 0.00K High Wind

The fourth, and final, storm of the month reached interior central California on April 27th. This was a drier storm than the previous ones, but up to a foot on new snow fell over the high country of the Southern Sierra Nevada, and as much as 4 inches of new snow fell as far south as the Tehachapi Mountains. The freezing level fell below 4000 feet on Interstate 5 around sunrise on April 29th. Black ice formed on the higher elevations of the Grapevine, and the California Highway Patrol also reported hail or snow pellets covering the road. Numerous accidents between 6 AM and 7 AM resulted in Interstate 5 begin closed over the Grapevine for a few hours. In addition to the rain and mountain snow, the storm brought another round of strong wind gusts to the Kern County Mountains and deserts. Gusts to 78 mph were reported near the Walker Pass, and gusts to around 55 mph occurred in the Kern County deserts. The California Highway Patrol reported a rolled semi truck on highway 395 near Pearsonville. April proved to be a much wetter than normal month. This is typical of a strong El Nino pattern, although the low snow levels were not. The storms of April atypically entrained cold Arctic air as well as Pacific moisture, resulting in snow falling into the Southern Sierra Nevada foothills. Typically, strong El Ninos are dominated by warm subtropical moisture fetches, with high snow levels. April also was a much colder than normal month, with both Bakersfield and Fresno seeing their average temperatures for the month rank among the 15 coldest Aprils on record. Bakersfield tied for its 12th coldest April, with an average temperature of 58.7 degrees. Fresno had its 14th coldest April, with an average temperature of 57.7 degrees.

CALIFORNIA, Southeast

CAZ519-520 Eastern Sierra slopes of Inyo County - Owens Valley 02 1900PST 1942PST 0 0 0.00K 0.00K High Wind

A downslope windstorm brought high winds to the eastern Sierra slopes and the Owens Valley.

CAZ519 Eastern Sierra slopes of Inyo County 04 0800PST 0 0 0.00K 0.00K Heavy Snow 05

CAZ520 Owens Valley 04 1642PST 0 0 0.00K 0.00K High Wind Another strong Pacific storm brought high west to southwest winds to much of the Mojave Desert and portions of the southern Great Basin. Isolated heavy snow also fell at the high elevations of the Sierra.

11 1300PST 0 0 0.00K 0.00K High Wind 11 1530PST 0 0 0.00K 0.00K High Wind 11 1540PST 0 0 0.00K 0.00K High Wind 11 1600PST 0 0 0.00K 0.00K High Wind

CAZ519 Eastern Sierra slopes of Inyo County 11 1700PST 12 0100PST 0 0 0.00K 0.00K Heavy Snow

CAZ520 Owens Valley 11 1700PST 0 0 0.00K 0.00K High Wind A Pacific storm system brought areas of high southerly winds ahead of it, then isolated heavy high elevation snow as it passed by. 20 1042PST 0 0 0.00K 0.00K High Wind A cold Pacific storm system and associated cold front brought locally high winds to the Mojave Desert and southern Great Basin. The system also spawned a few thunderstorms which enhanced the gradient winds.

27 0654PST 0 0 0.00K 0.00K High Wind 27 1142PST 0 0 0.00K 0.00K High Wind

36 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

CALIFORNIA, Southeast CAZ520-522-524 Death Valley National Park - Eastern Mojave Desert - Owens Valley

27 1400PST 2320PST 0 1 125.0K 0.00K High Wind

CAZ520-523 Owens Valley - Western Mojave Desert 28 0410PST 1625PST 0 0 0.00K 0.00K High Wind

CAZ523 Western Mojave Desert 28 1645PST 0 0 5.0K 0.00K Strong Wind

CAZ524 Eastern Mojave Desert 28 1800PST 0 0 0.00K 0.00K High Wind 29 0100PST 0 0 5.0K 0.00K Strong Wind A powerful storm system brought widespread high winds to the Mojave Desert and southern Great Basin.

CALIFORNIA, Southwest

CAZ060 Apple and Yucca Valleys 04 1530PST 05 1030PST 0 0 0.00K 0.00K High Wind

CAZ058-061 Coachella Valley - San Diego County Mountains 05 1114PST 1550PST 0 0 0.00K 0.00K High Wind

An upper level trough of low pressure brought light to moderate showers and gusty winds on April 4th and 5th. Rainfall amounts in the coastal and valley locations were generally less than one-quarter inch, while the more favorable locations along the SW facing slopes of the San Bernardino Mountains received almost 1.5 inches. Winds were the main concern with this system, mainly in the mountains and deserts. Wind gusts up to 76 MPH were measured in Lucerne Valley.

CAZ055-061 Coachella Valley - San Bernardino County Mountains 28 1050PST 29 1951PST 0 0 0.00K 0.00K High Wind

Snow and rain were not uncommon sights during the last week of April. Multiple upper level lows moving through brought unseasonable weather and periods of rain and mountain snow from April 21st through April 29th. Several inches of snow fell in the mountains on the 21st through 23rd, while areas west of the mountains received rain and experienced a few thunderstorms with small hail. The second series of storms on the 27th through 29th brought lighter precipitation and strong gusty winds.

CALIFORNIA, Upper

CAZ080-082-083 North Central & Southeast Siskiyou County - South Central Siskiyou County - Western Siskiyou County

02 0316PST 1800PST 0 0 0.00K 0.00K Heavy Snow

Significant subtropical moisture ahead of a strong cold front and strong cold air behind the front brought just the right synoptic conditions for heavy snow fall.

CAZ082-083 North Central & Southeast Siskiyou County - South Central Siskiyou County

04 0100PST 2200PST 0 0 0.00K 0.00K Heavy Snow

Very low snow levels in combination with moisture ahead of a cold front brought significant snow accumulations to the area.

11 1700PST 12 0700PST 0 0 0.00K 0.00K Heavy Snow 37 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

CALIFORNIA, Upper CAZ083 North Central & Southeast Siskiyou County 11 1700PST 12 0700PST 0 0 0.00K 0.00K Heavy Snow

Upslope flow across northern California led to significant snow accumulations across the region.

20 2200PST 21 0900PST 0 0 0.00K 0.00K Heavy Snow

CAZ081-082 Central Siskiyou County - South Central Siskiyou County 20 2300PST 21 1128PST 0 0 0.00K 0.00K Heavy Snow

A strong cold front in combination with deep moisture ahead of the front brought significant snow accumulations to the area.

CALIFORNIA, West South Central

CAZ053-054 Los Angeles County Mountains Excluding the Santa Monica Range - Ventura County Mountains

12 1100PST 1700PST 0 0 0.00K 0.00K Winter Storm

A late season winter storm brought snow and very gusty winds to the mountains of Ventura and Los Angeles counties. Many areas reported snowfall amounts between 4 and 8 inches. In addition, southerly wind gusts to 61 MPH were reported.

29 0853PST 1353PST 0 0 0.00K 0.00K High Wind

CAZ052-054 Los Angeles County Mountains Excluding the Santa Monica Range - Santa Barbara County Mountains

29 0853PST 2314PST 0 0 0.00K 0.00K High Wind

A strong northwest wind event developed across the mountains of Southern California. The strongest winds were reported through the Interstate 5 corridor in Ventura and Los Angeles counties and the Santa Ynez range in southern Santa Barbara county. Wind gusts as high as 68 MPH were reported.

CALIFORNIA, Western Contra Costa County 1 E Walnut Creek 11 1700PST 1815PST 0 0 10.00K 0.00K Heavy Rain

A rain-slicked road led to the crash of a car at the intersection of Mount Diablo Boulevard and Iron Horse Regional Trail in Walnut Creek. The vehicle crashed through a fence and landed upside down in the rain-swollen San Ramon Creek bypass. The driver and one other individual perished, while one occupant was rescued three miles downstream. A Contra Costa County official stated that at the time of the crash, the water would have been 2.34 feet deep and flowing at 6.4 feet per second.

Marin County 7 NNW Nicasio 11 2100PST 2150PST 0 0 12.00K 0.00K Flood

Heavy rain caused flooding at the intersection of Wilson Hill and Marshall Petaluma Roads. Mud consumed the westbound lane and a large tree fell onto the roadway.

CAZ512 Santa Cruz Mountains 11 2300PST 12 0200PST 0 0 25.0K 0.00K Strong Wind

A pacific storm system brought strong wind and brief heavy rain to California. It even produce a few thunderstorms over the coastal waters just west of the central coast which moved onshore and produced small hail.

38 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

COLORADO, Central and Northeast

COZ031-033 South & East Jackson/Larimer/North & Northeast Grand/Northwest Boulder Counties above 9000 Feet - West Jackson & West Grand Counties above 9000 Feet 01 0300MST 2300MST 0 0 0.00K 0.00K Winter Weather

A spring storm produced moderate to heavy snowfall over parts of the North-Central Mountains. Storm totals included: 11 inches at Willow Creek SNOTEL, 10 inches at Columbine SNOTEL and Joe Wright, 9 inches at Buffalo Park SNOTEL, Long Draw SNOTEL and Roach SNOTEL, 7 inches at Arapahoe Ridge, with 6 inches at Lake Irene.

COZ046 North & Northeast Elbert County below 6000 Feet/North Lincoln County

01 1151MST 1355MST 0 0 0.00K 0.00K High Wind

High winds developed over northeast Elbert and Northern Lincoln Counties. Peak wind reports included 64 mph at Limon Airport and 58 mph at Cedar Point.

COZ031 West Jackson & West Grand Counties above 9000 Feet 06 1300MST 07 0800MST 0 0 0.00K 0.00K Winter Storm

COZ033-034 South & East Jackson/Larimer/North & Northeast Grand/Northwest Boulder Counties above 9000 Feet - South & Southeast Grand/West Central & Southwest Boulder/Gilpin/Clear Creek/Summit/North & West Park Counties above 9000 Feet 06 1300MST 07 0800MST 0 0 0.00K 0.00K Winter Weather

Another spring storm brought locally heavy snow to the Gore Range where the Columbine SNOTEL measured 18 inches of snow. Elsewhere, storm totals included: 9 inches at Joe Wright, 8 inches at Arapahoe Ridge, Deadman Hill, Rawah SNOTEL and Zirkel SNOTEL.

COZ046-051 North & Northeast Elbert County below 6000 Feet/North Lincoln County - Phillips County

13 1011MST 1323MST 0 0 0.00K 0.00K High Wind

High winds developed over portions of the Northeast Plains. Peak wind reports included: 69 mph, 2 miles east of Amherst and Highlands Ranch; 60 mph at Cedar Point, 58 mph at Holyoke and 57 mph at Kiowa.

Elbert County 11 WSW Lowland 19 1610MST 0 0 0.00K 0.00K Hail (0.75)

Morgan County Hoyt 19 1818MST 0 0 Hail (1.50)

A severe thunderstorm produced walnut size hail near Hoyt.

Arapahoe County 3 WSW (BKF)Buckley Fld Nas 21 1539MST 0 0 0.00K 0.00K Hail (0.88)

Arapahoe County 3 ENE (BKF)Buckley Fld Nas 21 1550MST 0 0 0.00K 0.00K Hail (1.00)

Boulder County 1 ENE Boulder 21 1650MST 0 0 0.00K 0.00K Hail (0.88)

39 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

COLORADO, Central and Northeast Adams County 1 NE Bennett 21 1701MST 0 0 Hail (1.50)

Large hail caused some car damage. Adams County 1 NE Bennett 21 1705MST 0 0 Hail (1.00)

Severe weather preceded an approaching Pacific storm system. Large hail and heavy rain were reported across parts of Adams, Arapahoe and Boulder Counties. The hail size ranged from nickel size to walnut size, damaging vehicles. In addition, minor street flooding was reported in southeast Aurora.

Arapahoe County 5 E (APA)Englwood Arapah 22 1300MST 0 0 Hail (1.25)

Arapahoe County 4 NW (BKF)Buckley Fld Nas 22 1300MST 0 0 Hail (1.00)

Adams County 20 NNE Strasburg 22 1410MST 0 0 0.00K 0.00K Hail (0.88)

Elbert County 10 W Lowland 22 1428MST 0.1 50 0 0 0.00K 0.00K Tornado (EF0)

A tornado touched down briefly but did no damage. Morgan County Hoyt 22 1438MST 0 0 Thunderstorm Wind (65MG) Note: The measured wind gust of 65 knots is equivalent to 75 mph.

Adams County 17 NE Strasburg 22 1438MST 0.1 50 0 0 0.00K 0.00K Tornado (EF0)

A tornado touched down briefly but did no damage. Morgan County 4 NNE Hoyt 22 1524MST 0 0 0.00K 0.00K Hail (0.88)

Weld County 4 W Stoneham 22 1635MST 0 0 Thunderstorm Wind (56MG)

Severe thunderstorms produced large hail, strong winds and tornadoes across parts of Adams, Arapahoe, Elbert, Morgan and Weld Counties. The hail, up to half dollar size, came down so heavy along parts of Interstates 70 and 76 that snowplows had to be called out to remove it. In Weld and Morgan Counties, very heavy rain and hail accompanied thunderstorm winds up to 75 mph. The heavy rain caused some street flooding in parts of Greeley. Approximately 1300 residents lost power briefly in the towns of Johnston and Milliken. Two brief tornados were observed in Adams and Elbert Counties but no damage was reported. Several minor accidents were reported with snowpacked and slick road conditions along with very low visibilities. Note: The measured wind gust of 56 knots is equivalent to 64 mph.

COZ033-034 South & East Jackson/Larimer/North & Northeast Grand/Northwest Boulder Counties above 9000 Feet - South & Southeast Grand/West Central & Southwest Boulder/Gilpin/Clear Creek/Summit/North & West Park Counties above 9000 Feet 22 1700MST 24 0800MST 0 0 0.00K 0.00K Winter Storm

COZ035-036 Jefferson & West Douglas Counties above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties below 9000 Feet - Larimer & Boulder Counties between 6000 & 9000 Feet 23 0430MST 24 0830MST 0 0 Winter Storm

COZ041 Elbert/Central & east Douglas Counties above 6000 Feet 23 0430MST 24 0800MST 0 0 0.00K 0.00K Winter Weather

40 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

COLORADO, Central and Northeast Lincoln County 6 NE Genoa 23 1017MST 0.1 50 0 0 0.00K 0.00K Tornado (EF0)

A tornado touched down briefly but did no damage. A potent spring storm brought heavy, wet snow to areas in and near the Front Range Foothills and widespread rainfall to the Northeast Plains of Colorado. In the Front Range Foothills and North-Central Mountains, mainly east of the Continental Divide, storm totals generally ranged from 15 to 30 inches. Storm totals over the Palmer Ridge ranged from 4 to 12 inches. Across the Northeast Plains, rainfall totals generally ranged from 1.5 to 2.5 inches over the 2-day period. One tornado reportedly touched down, but did no damage. The more impressive storm totals included: 29.5 inches, 3 miles southeast of Pinecliffe; 27 inches, 8 miles northeast of Four Corners; 23 inches at Willow Creek, 22.5 inches, 13 miles northwest of Golden 21 inches at Never Summer, 18 inches at Buckhorn Mountain, 14 miles north-northwest of Glendevey, and Long Draw Reservoir SNOTEL; 17 inches, 4 miles west- southwest of Eldorado Springs; 16.5 inches, 3 miles west of Jamestown; with 16 inches at Arapahoe Ridge and Elliot Ridge SNOTEL.

COLORADO, East Central

COZ092 Cheyenne County 01 1300MST 1749MST 0 0 0.00K 0.00K High Wind

A tightening surface pressure gradient combined with strong winds aloft to produce strong and gusty southwest winds during the afternoon and early evening hours. Several wind gusts around 60 mph occurred.

COZ090>092 Cheyenne County - Kit Carson County - Yuma County 13 1000MST 1700MST 0 0 0.00K 0.00K High Wind

Strong south to southwest surface gradient winds developed during the morning hours and continued through most of the day across eastern Colorado, southwest Nebraska and western Kansas. Peak wind gusts of 50 to 70 mph were common across the area, producing minor damage, including a broken utility pole, and tree and awning damage. One vehicle was blown over on Interstate 70 near Colby, Kansas but no injuries occurred.

Yuma County 2 E Vernon 13 1639MST 0 0 0.00K 0.00K Hail (1.00)

Spotter reported a lot of hail covering the ground. Yuma County 4 SSE Wray 13 1655MST 0 0 0.00K 0.00K Hail (1.00)

Kit Carson County 5 SW Bethune 13 1759MST 1800MST 0.5 10 0 0 0.00K 0.00K Tornado (EF0)

Tornado report was relayed to NWS via Kit Carson County dispatch.

Cheyenne County 5 WNW Firstview 13 1805MST 0 0 0.00K 0.00K Hail (1.00)

After a day of strong southwest gradient winds gusting over 60 mph, a NE to SW oriented line of strong to severe thunderstorms developed in eastern Colorado and later moved into western Kansas. Several reports of severe hail and one brief tornado occurred with the stronger storms.

Cheyenne County Arapahoe 22 0040MST 0 0 0.00K 0.00K Hail (1.25)

Cheyenne County 1 WSW Kit Carson 22 1455MST 0 0 0.00K 0.00K Hail (1.50)

Observer reported ping pong ball sized hail covering the ground.

41 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

COLORADO, East Central Cheyenne County 1 WSW Kit Carson 22 1504MST 0 0 0.00K 0.00K Hail (1.75)

Cheyenne County 10 NNE Kit Carson 22 1524MST 11 NW Firstview 1528MST 2.33 75 0 0 0.00K 0.00K Tornado (EF0)

The tornado lasted about 4 minutes before roping out. No known damage.

Cheyenne County 3 WSW Kit Carson 22 1540MST 1544MST 1.35 50 0 0 0.00K 0.00K Tornado (EF0)

This tornado developed southwest of Kit Carson and dissipated just west of town. No known damage.

Cheyenne County 1 WSW Kit Carson 22 1553MST 0 0 0.00K 0.00K Hail (1.00)

Cheyenne County 2 NW Kit Carson 22 1555MST 0 0 0.00K 0.00K Hail (2.50)

Hail was mostly golf ball sized but a few stones were 2.0-2.5 inches in diameter.

Cheyenne County 8 NNE Kit Carson 22 1604MST 0 0 100.00K 0.00K Hail (1.75)

Observer reported ten windows were broken in his house, two vehicles completely damaged beyond repair, and hail damage to all buildings. Cheyenne County 8 WNW Firstview 22 1612MST 1620MST 2.59 75 0 0 0.00K 0.00K Tornado (EF0)

The storm chaser reported this tornado became rain-wrapped. Tornado remained over open, rural portions of the county with no known damage. Kit Carson County 2 S Stratton 22 1620MST 0 0 0.00K 0.00K Hail (1.00)

Spotter reported hail to a depth of three inches. Kit Carson County Stratton 22 1642MST 0 0 0.00K 0.00K Hail (1.00)

Kit Carson County 2 E Stratton 22 1650MST 0 0 0.00K 0.00K Hail (0.88)

Law enforcement indicated dime to nickel size hail covered the ground as well as Interstate 70. Road crews were called out to clear the Interstate. Also minor street flooding reported on highway 24, two miles east of Stratton.

Yuma County 3 NNE Idalia 22 1652MST 0 0 0.00K 0.00K Hail (0.75)

Cheyenne County 13 N Firstview 22 1652MST 1654MST 1.07 25 0 0 0.00K 0.00K Tornado (EF0)

The spotter reported the tornado developed on the north side of Road DD and Road 34 and then moved northeast. Tornado remained over open, rural portions of the county with no known damage.

42 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

COLORADO, East Central Cheyenne County 14 N Firstview 22 1705MST 1709MST 1.42 25 0 0 0.00K 0.00K Tornado (EF0)

The tornado remained over open, rural portions of the county with no known damage.

Cheyenne County 12 N Firstview 22 1712MST 2012MST 0 0 0.00K 0.00K Flash Flood

Flooding reported along Road DD between Roads 34 and 38 in extreme northern Cheyenne county.

Kit Carson County 5 S Burlington 22 1754MST 0 0 0.00K 0.00K Hail (1.25)

Kit Carson County 5 S Burlington 22 1755MST 0 0 0.00K 0.00K Hail (1.75)

A strong, slow-moving upper low pressure area moved across eastern Colorado and western Kansas during the afternoon and early evening hours. A round of severe weather occurred with thunderstorms initially producing large, damaging hail. By late afternoon, a NE-SW line of supercells developed and moved northeast across Cheyenne and Kit Carson counties, producing numerous tornadoes near the town of Kit Carson in Cheyenne county. Later in the evening, storms produced flash flooding over portions of western Kansas.

COLORADO, South Central and Southeast

COZ085-089-093> Bent County - Colorado Springs Vicinity/Southern El Paso County/Rampart Range below 7500 Ft - 099 Crowley County - Eastern Kiowa County - Eastern Las Animas County - La Junta Vicinity/Otero County - Lamar Vicinity/Prowers County - Pueblo Vicinity/Pueblo County below 6300 Ft - Springfield Vicinity/Baca County - Western Kiowa County

01 1300MST 1700MST 0 0 0.00K 0.00K High Wind

A strong weather system generated high winds across the southeast plains. Wind gusted in some areas to nearly 70 mph.

COZ093 La Junta Vicinity/Otero County 01 1400MST 1900MST 0 0 30.0K 0.00K Wildfire

A wind-driven grass fire forced the evacuation of residents. The fire started around 3 p.m. along the Arkansas River near CR21 and Highway 266. The fire burned nearly 1000 acres. An irrigation pump house was destroyed, along with some irrigation pipe.

COZ079-082-086 Pikes Peak above 11000 Ft - Pueblo Vicinity/Pueblo County below 6300 Ft - Wet Mountains above 10000 Ft - Wet Mountains between 8500 and 10000 Ft 05 1100MST 1400MST 0 0 0.00K 0.00K High Wind

Strong winds aloft caused gusty winds at the surface, with some gusts over 75 mph across the higher terrain.

Kiowa County 9 ESE Arlington 13 1750MST 1755MST 0 0 0.00K 0.00K Hail (0.88)

Kiowa County 6 WNW Eads 13 1800MST 1805MST 0 0 0.00K 0.00K Hail (0.88)

43 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

COLORADO, South Central and Southeast Kiowa County Eads 13 1810MST 1815MST 0 0 0.00K 0.00K Hail (1.00)

Kiowa County Eads 13 1824MST 1829MST 0 0 0.00K 0.00K Hail (1.25)

Kiowa County Eads 13 1827MST 1832MST 0 0 0.00K 0.00K Hail (0.75)

Kiowa County 9 N Brandon 13 1854MST 1859MST 0 0 0.00K 0.00K Hail (1.00)

A severe thunderstorm produced large hail in central Kiowa County.

El Paso County 6 ESE Falcon 18 1511MST 1516MST 0 0 0.00K 0.00K Hail (0.75)

A strong thunderstorm produced hail up to the size of pennies in northern El Paso County.

Pueblo County 3 NNE Pueblo 20 1355MST 1400MST 0 0 0.00K 0.00K Hail (0.75)

Pueblo County 3 WSW Pueblo 20 1431MST 1436MST 0 0 0.00K 0.00K Hail (0.75)

Pueblo County 1 NNW Colorado City 20 1518MST 1523MST 0 0 0.00K 0.00K Hail (0.88)

Pueblo County 1 N Colorado City 20 1522MST 1527MST 0 0 0.00K 0.00K Hail (0.88)

Pueblo County 4 ESE Colorado City 20 1540MST 1545MST 0 0 0.00K 0.00K Hail (1.00)

Pueblo County 4 ESE Colorado City 20 1545MST 1550MST 0 0 0.00K 0.00K Hail (1.00)

Baca County 7 NNW Springfield 20 1645MST 1650MST 0 0 0.00K 0.00K Hail (0.75)

Baca County 11 NW Springfield 20 1703MST 1708MST 0 0 0.00K 0.00K Hail (1.75)

A few severe thunderstorms across Pueblo and Baca Counties produced hail up to the size of golf balls.

44 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

COLORADO, South Central and Southeast Las Animas County 3 ENE Model 21 1515MST 1525MST 0 0 0.00K 0.00K Hail (2.00)

Huerfano County 6 SSE Walsenburg 21 1526MST 1531MST 0 0 0.00K 0.00K Hail (1.00)

Huerfano County 6 SSE Walsenburg 21 1528MST 1533MST 0 0 0.00K 0.00K Hail (1.75)

Las Animas County 13 SE Thatcher 21 1609MST 1615MST 2.7 50 0 0 0.00K 0.00K Tornado (EF0)

Tornado occurred over open country with no known damage. Las Animas County 21 N Ville Green 21 1842MST 1847MST 0 0 0.00K 0.00K Hail (1.00)

Severe thunderstorms produced golf ball size hail south of Walsenburg, and up to 2 inches in diameter near Model. A tornado occurred in north central Las Animas County over open country, with no known damage.

Bent County 1 NE Ft Lyon 22 1202MST 1207MST 0 0 0.00K 0.00K Hail (1.25)

Bent County 7 SE Las Animas 22 1205MST 4 SSE Ft Lyon 1215MST 4.69 100 0 0 0.00K 0.00K Tornado (EF0)

Tornado occurred over open country and caused no damage. Bent County 5 SE Las Animas 22 1208MST 4 SSE Ft Lyon 1213MST 2.45 50 0 0 0.00K 0.00K Tornado (EF0)

Tornado occurred over open country and caused no damage. Bent County 4 N Hasty 22 1235MST 1237MST 0.59 50 0 0 0.00K 0.00K Tornado (EF0)

Tornado occurred over open country and caused no damage. Bent County 6 N Hasty 22 1248MST 1253MST 1.92 150 0 0 0.00K 0.00K Tornado (EF0)

Tornado occurred over open country and caused no damage. Bent County 10 NNW Mc Clave 22 1257MST 1258MST 0.58 50 0 0 0.00K 0.00K Tornado (EF0)

Tornado occurred over open country and caused no damage. Kiowa County 5 SW Eads 22 1311MST 1316MST 0 0 0.00K 0.00K Hail (1.00)

45 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

COLORADO, South Central and Southeast Prowers County 2 W Bristol 22 1321MST 1326MST 0 0 0.00K 0.00K Hail (0.75)

Kiowa County 15 SSW Eads 22 1322MST 1327MST 3.35 50 0 0 0.00K 0.00K Tornado (EF0)

Tornado occurred over open country and caused no damage. Kiowa County 10 SSW Eads 22 1329MST 1349MST 7.22 200 0 0 1.00K 0.00K Tornado (EF1)

Tornado occurred over open country, but totally destroyed a small storage barn 10.3 miles southwest of Eads. Debris from the barn was carried as far as 1500 feet to the north-northeast.

Kiowa County 8 SSW Eads 22 1336MST 1338MST 0.36 50 0 0 0.00K 0.00K Tornado (EF0)

Tornado occurred over open country and caused no damage. Kiowa County 5 SSW Eads 22 1345MST 1354MST 2.56 50 0 0 0.00K 0.00K Tornado (EF0)

Tornado occurred over open country and caused no damage. Kiowa County 2 SSW Eads 22 1355MST 1357MST 0.73 25 0 0 0.00K 0.00K Tornado (EF0)

Tornado occurred over open country and caused no damage. Kiowa County 3 S Eads 22 1356MST 1404MST 1.36 50 0 0 0.00K 0.00K Tornado (EF0)

Tornado occurred over open country and caused no damage. Kiowa County 1 ENE Eads 22 1400MST 1404MST 1.18 75 0 0 0.00K 0.00K Tornado (EF0)

Tornado occurred over open country with no damage. Kiowa County Haswell 22 1411MST 1416MST 0 0 0.00K 0.00K Hail (0.88)

Kiowa County 7 NNW Eads 22 1412MST 1414MST 1.2 50 0 0 0.00K 0.00K Tornado (EF0)

Tornado occurred over open country and caused no damage. Kiowa County Haswell 22 1418MST 1423MST 0 0 0.00K 0.00K Hail (1.25)

Kiowa County Haswell 22 1420MST 1425MST 0 0 0.00K 0.00K Hail (1.75)

46 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

COLORADO, South Central and Southeast El Paso County 2 W Peterson Afb 22 1914MST 1919MST 0 0 0.00K 0.00K Hail (0.88)

El Paso County 2 SW Peterson Afb 22 1916MST 1921MST 0 0 0.00K 0.00K Hail (0.75)

El Paso County 4 NNE Peterson Afb 22 1929MST 1934MST 0 0 0.00K 0.00K Hail (0.75)

El Paso County 2 N Peterson Afb 22 1930MST 1935MST 0 0 0.00K 0.00K Hail (1.25)

El Paso County 1 NW Peterson Afb 22 1933MST 1938MST 0 0 0.00K 0.00K Hail (1.00)

El Paso County 4 NNW Schriever Afb 22 2024MST 2029MST 0 0 0.00K 0.00K Hail (0.75)

El Paso County 3 E Falcon 22 2035MST 2040MST 0 0 0.00K 0.00K Hail (0.75)

El Paso County 3 E Falcon 22 2043MST 2048MST 0 0 0.00K 0.00K Hail (0.88)

El Paso County 5 E Falcon 22 2046MST 2051MST 0 0 0.00K 0.00K Hail (1.00)

El Paso County 6 ESE Falcon 22 2048MST 2053MST 0 0 0.00K 0.00K Hail (1.25)

El Paso County 7 S Peyton 22 2106MST 2111MST 0 0 0.00K 0.00K Hail (0.88)

Severe thunderstorms produced large hail across Otero, Bent, and Kiowa Counties. One prolific supercell storm generated 13 tornadoes across northern Bent County and central Kiowa County in a three hour time frame. The tornadoes occurred from southeast of Las Animas in Bent County through central Kiowa County. Only one structure, an old, small storage barn, was hit by one of the tornadoes in south central Kiowa County. Large hail also occurred in El Paso County.

COZ081-084 Northern El Paso County/Monument Ridge/Rampart Range below 7500 Ft - Pikes Peak above 11000 Ft - Teller County/Rampart Range above 7500 Ft/Pikes Peak between 7500 & 11000 Ft 23 0000MST 1300MST 0 0 0.00K 0.00K Winter Storm

A very strong low pressure system brought impressive snow amounts to the Palmer Divide and Teller County. Some heavier snow amounts include...over one foot in northern Teller County...including Woodland Park...and 18 to 24 inches in the Monument and Black Forest areas of northern El Paso County. I-25 and US Highway 24 experienced difficult travel conditions for several hours.

47 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

COLORADO, West COZ004-009-012> Elkhead and Park Mountains - Flattop Mountains - Gore and Elk Mountains/Central Mountain Valleys - 013-018>019 Grand and Battlement Mesas - Northwestern San Juan Mountains - Southwestern San Juan Mountains - West Elk and Sawatch Mountains 01 0000MST 02 0900MST 0 0 0.00K 0.00K Winter Storm

COZ002-005 Central Yampa River Basin - Roan and Tavaputs Plateaus - Upper Yampa River Basin

01 0000MST 02 1200MST 0 0 0.00K 0.00K Winter Weather

A strong winter storm system moved into the Great Basin Region pulling a strong cold front with it. The front stalled over northeast Utah, where it produced heavy snowfall over the eastern Utah mountains. The front then pushed through western Colorado spreading heavy snow over the Colorado mountains and higher valleys across northwest Colorado. This event began in March, so please see the March 2010 Storm Data Publication for additional information.

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 30 2359MST 0 0 0.00K 0.00K Drought

Drought conditions across western Colorado through the month of April were largely unchanged. A small area of Routt county in northwest Colorado improved from moderate drought to abnormally dry conditions.

COZ017 Uncompahgre Plateau and Dallas Divide 01 0200MST 02 0900MST 0 0 0.00K 0.00K Winter Storm

COZ008-014 Central Colorado River Basin - Upper Gunnison River Valley 01 0600MST 1000MST 0 0 0.00K 0.00K Winter Weather

A strong winter storm system moved into the Great Basin Region pulling a strong cold front with it. The front stalled over northeast Utah, where it produced heavy snowfall over the eastern Utah mountains. The front then pushed through western Colorado spreading heavy snow over the Colorado mountains and higher valleys across northwest Colorado. This event began in March, so please see the March 2010 Storm Data Publication for additional information.

COZ004-009-012> Elkhead and Park Mountains - Flattop Mountains - Gore and Elk Mountains/Central Mountain Valleys - 013 Grand and Battlement Mesas - West Elk and Sawatch Mountains 02 1500MST 04 1000MST 0 0 0.00K 0.00K Winter Weather

COZ005-014 Upper Gunnison River Valley - Upper Yampa River Basin 03 0100MST 0800MST 0 0 0.00K 0.00K Winter Weather

A Pacific, spring storm system skirted across northeast Utah and northwest Colorado spreading snowfall over the higher elevations.

COZ002-004-010- Central Yampa River Basin - Elkhead and Park Mountains - Flattop Mountains - Gore and Elk 012>013 Mountains/Central Mountain Valleys - Upper Yampa River Basin - West Elk and Sawatch Mountains

05 1500MST 07 0100MST 0 0 0.00K 0.00K Winter Storm

48 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

COLORADO, West COZ018-019 Northwestern San Juan Mountains - Southwestern San Juan Mountains

05 1700MST 07 0700MST 0 0 0.00K 0.00K Winter Weather

COZ009 Grand and Battlement Mesas 05 2000MST 07 0800MST 0 0 0.00K 0.00K Winter Storm

COZ017 Uncompahgre Plateau and Dallas Divide 05 2200MST 06 2000MST 0 0 0.00K 0.00K Winter Weather

A strong, spring storm system over the Great Basin Region pushed eastward and spread significant snowfall over the mountains of eastern Utah and western Colorado.

COZ019 Southwestern San Juan Mountains 16 1400MST 17 0600MST 0 0 0.00K 0.00K Winter Storm

Clockwise flow around a departing area of high pressure drew gulf moisture into the San Juan Mountain region. This, combined with a disturbance moving through southern Colorado, brought a late season snow storm to the southern San Juan Mountains.

COZ003-009-012- Four Corners/Upper Dolores River Basin - Grand and Battlement Mesas - Northwestern San Juan 017>019-021 Mountains - Roan and Tavaputs Plateaus - Southwestern San Juan Mountains - Uncompahgre Plateau and Dallas Divide - West Elk and Sawatch Mountains 21 1500MST 22 0400MST 0 0 0.00K 0.00K Winter Weather

A broad and deep Pacific storm system rotating over the Great Basin spread snowfall over the Rocky Mountains of eastern Utah and western Colorado while pushing a cold front from west to east across the area.

COZ004-010-012- Elkhead and Park Mountains - Flattop Mountains - Gore and Elk Mountains/Central Mountain Valleys - 018 Northwestern San Juan Mountains - West Elk and Sawatch Mountains 22 1300MST 24 0500MST 0 0 0.00K 0.00K Winter Storm

COZ014 Upper Gunnison River Valley 23 0100MST 0 0 0.00K 0.00K Winter Weather 24

COZ009 Grand and Battlement Mesas 23 0800MST 24 0600MST 0 0 0.00K 0.00K Winter Storm

COZ017 Uncompahgre Plateau and Dallas Divide 23 1500MST 24 0400MST 0 0 0.00K 0.00K Winter Weather

As a broad and deep trough of low pressure moved onto the eastern plains, moisture wrapping around the system spread another round of mountain snow across the northern and central mountains of western Colorado.

COZ010 Gore and Elk Mountains/Central Mountain Valleys 24 1400MST 1430MST 0 1 0.00K 0.00K Avalanche

Two skiers headed up Castle Peak in the Elk Mountains when they encountered an avalanche that carried one skier downhill.

49 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

COLORADO, West COZ004-013 Elkhead and Park Mountains - Flattop Mountains 28 1400MST 30 2359MST 0 0 0.00K 0.00K Winter Storm

COZ001-005 Central Yampa River Basin - Lower Yampa River Basin - Upper Yampa River Basin

28 1700MST 30 0900MST 0 0 0.00K 0.00K Winter Weather

COZ009-012 Gore and Elk Mountains/Central Mountain Valleys - Grand and Battlement Mesas - West Elk and Sawatch Mountains 28 2300MST 30 2359MST 0 0 0.00K 0.00K Winter Storm

COZ008 Central Colorado River Basin 29 0000MST 1700MST 0 0 0.00K 0.00K Winter Storm

COZ007-017>019 Debeque to Silt Corridor - Northwestern San Juan Mountains - Southwestern San Juan Mountains - Uncompahgre Plateau and Dallas Divide 29 0100MST 30 2200MST 0 0 0.00K 0.00K Winter Weather

A strong, late season storm system spread heavy snowfall over the Colorado mountains as well as some of the higher valleys. A few of the lower valleys in western Colorado also received significant late season snowfall accumulations. This event continued into May, so please see the May 2010 Storm Data Publication for additional information.

CONNECTICUT, Northeast

CTZ002 Hartford 29 1130EST 1700EST 0 0 250.0K 0.00K Strong Wind

Low pressure over the Canadian Maritimes produced winds gusts of 40 to 50 mph throughout southern New England, resulting in scattered wind damage.

CONNECTICUT, Northwest

CTZ001-013 Northern Litchfield - Southern Litchfield 12 0100EST 0700EST 0 0 0.00K 0.00K Frost/Freeze

Much above normal temperatures during early April resulted in an early start to the growing season across northwestern Connecticut. With mostly clear skies, light winds and a cool airmass in place, temperatures fell into lower 30s during the early morning hours of Monday, April 12th across Litchfield County.

14 0100EST 0730EST 0 0 0.00K 0.00K Frost/Freeze

CTZ013 Southern Litchfield 14 0100EST 0730EST 0 0 0.00K 0.00K Frost/Freeze

50 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

CONNECTICUT, Northwest

Much above normal temperatures during early April resulted in an early start to the growing season across northwestern Connecticut. With mostly clear skies, light winds and a cool airmass in place, temperatures fell into lower 30s during the early morning hours of Wednesday, April 14th across Litchfield County.

CTZ001-013 Northern Litchfield - Southern Litchfield 15 0100EST 0700EST 0 0 0.00K 0.00K Frost/Freeze

Much above normal temperatures during early April resulted in an early start to the growing season across northwestern Connecticut. With mostly clear skies, light winds and a cool airmass in place, temperatures fell into the lower 30s during the early morning hours of Thursday, April 15th across Litchfield County.

24 0300EST 0700EST 0 0 0.00K 0.00K Frost/Freeze

Much above normal temperatures during early April resulted in an early start to the growing season across northwest Connecticut. The combination of clear skies, light winds and a cold, dry airmass allowed temperatures to drop into the lower 30s during the early morning hours of Saturday, April 24th across northern Litchfield County.

28 0000EST 0700EST 0 0 0.00K 0.00K Frost/Freeze

CTZ013 Southern Litchfield 28 0000EST 0700EST 0 0 0.00K 0.00K Frost/Freeze

Much above normal temperatures during early April resulted in an early start to the growing season across northwestern Connecticut. An unseasonably cold airmass was in place across the region and temperatures fell into the lower 30s during the early morning hours of Wednesday, April 28th across Litchfield County.

29 0000EST 0700EST 0 0 0.00K 0.00K Frost/Freeze

29 1425EST 0 0 2.0K 0.00K Strong Wind Much above normal temperatures during early April resulted in an early start to the growing season across northwestern Connecticut. With clearing skies, diminishing winds and an unseasonably cold airmass in place, temperatures fell into the upper 20s to lower 30s during the early morning hours of Thursday, April 29th across southern Litchfield County. In addition, the combination of a tight pressure gradient, and the passage of a strong upper level atmospheric disturbance resulted in strong and gusty winds during Thursday, with some gusts approaching 50 mph.

CONNECTICUT, Southern New London County 1 S Taftville 01 0000EST 1 NW Jewett City 0745EST 0 0 0.00K 0.00K Flood

The Quinebaug River fell to moderate flooding around midnight on April 1 and continued to recede, falling below its flood stage of 17.5 ft during the morning. A Nor'easter centered off the Delmarva coast produced an extended period of heavy rainfall across the area as it tracked very slowly to the northeast between March 28 and March 31, 2010. The Quinebaug River in Jewett City was receding, but remained in flood.

51 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

CONNECTICUT, Southern New Haven County 1 SSE Pine Bridge 22 1513EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

A portion of a roof was ripped off of an auto shop on Main Street in Beacon Falls.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. New Haven County 2 ENE Beacon Falls 22 1513EST 0 0 4.00K 0.00K Thunderstorm Wind (50EG)

A portion of a roof was torn off a trailer home on Donna Street in Beacon Falls. The home adjacent had some siding ripped off.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. New Haven County 1 NE North Branford 22 1602EST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported near Totoket RV Park. An approaching cold front sparked scattered thunderstorms across New Haven County.

CTZ006-008 Northern New Haven - Northern New London 29 1400EST 1800EST 0 0 120.0K 0.00K Strong Wind

A strong low pressure system moved to the Canadian Maritimes resulting in gusty northwest winds.

DELAWARE New Castle County Townsend 16 1900EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A severe thunderstorm tore down a couple of trees in Townsend.

A strong cold frontal passage overnight on the 16th helped trigger strong to locally severe thunderstorms across the northern Delmarva Peninsula during the evening of the 16th. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

DISTRICT OF COLUMBIA District of Columbia 1 ENE Us Capitol 16 1858EST 0 0 5.00K Thunderstorm Wind (50EG)

Many trees were down across the District. A strong area of low pressure over the Great Lakes slowly tracked to our north on the 8th. The cold front associated with the low moved into the region during the afternoon and evening hours. A moist southerly flow ahead of the front provided instability. The instability combined with the forcing from the front to trigger showers and thunderstorms during the afternoon and evening hours of the 8th. Due to strong winds aloft, an isolated thunderstorm did become severe producing damaging winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

FLORIDA, East Central Okeechobee County 2 N Cypress Quarters 17 1405EST 1412EST 0 0 0.00K 0.00K Funnel Cloud

A funnel cloud developed along a line of low-topped showers in eastern Okeechobee County. These showers occurred along a sea and lake breeze convergence boundary on the northeast side of Lake Okeechobee. The funnel cloud lasted about 7 minutes, and was located around 3 miles east-northeast of the city of Okeechobee, Florida.

A funnel cloud developed along a line of showers associated with sea/lake breeze convergence. The funnel cloud was spotted about 3 miles east northeast of the city of Okeechobee.

Orange County 33 W Titusville Airpark 25 1924EST 0 0 30.00K 0.00K Thunderstorm Wind (50EG)

Police and fire officials reported a large tree toppled by high winds as a severe thunderstorm moved across the region. The tree penetrated through portions of a home. The home was heavily damaged and was declared condemned.

52 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

FLORIDA, East Central

An upper level disturbance moved across the peninsula and promoted growth of scattered strong thunderstorms. One of the storms became severe and produce localized wind damage in Orlando. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Indian River County 2 SW (VRB)Vero Beach Muni 26 0207EST 1 S Vero Lake Estates 0210EST 0 0 0.00K Thunderstorm Wind (50EG)

A strong thunderstorm intensified to severe levels upon approach to the coast at Vero Beach. The storm produced winds which toppled a tree onto a house and caused damage to the roof. Nearby, the winds blew the arm of a construction crane into power lines, taking the lines down. Strong winds also blew a large tree limb down which took down power lines. The wind damage affected 16th street and the south side of Vero Beach south of the intersection of 4th Street and U.S. Highway 1. Damage reports were received from police officials and the Scripps Treasure Coast newspaper.

An upper level disturbance triggered a round of early morning thunderstorms over the central Florida interior. Several of the storms became strong and produced wind gusts of 40 to 50 mph. One storm briefly became severe and resulted in wind damage within Vero Beach. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

FLORIDA, Extreme Southern Monroe County 3 WNW Upper Key Largo 26 1130EST 0 0 0.20K 0.00K Thunderstorm Wind (52EG)

Estimated southwest wind gusts to 45 mph shifted to northwest, gusting to about 60 mph as a line of thunderstorms moved through the Jewfish Creek area of North Key Largo. Filled trash cans were blown across a property with a mailbox destroyed.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Monroe County 3 WSW Upper Key Largo 26 1145EST 0 0 1.50K 0.00K Thunderstorm Wind (52EG)

Multiple spotters reported several downed tree limbs ranging from 8 to 12 inches in diameter at the intersection of Dolphin and Biscayne Roads in Key Largo. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Monroe County 3 NNE Key Largo Pt Arpt 26 1145EST 1146EST 0.1 50 0 0 15.00K 0.00K Tornado (EF0)

A waterspout accompanying a line of severe thunderstorms moved onshore the Florida Bay side of Key Largo at the Marriott Florida Bay Resort. A tree was blown down blocking part of U.S. Highway 1 in front of the hotel. An outdoor day spa consisting of a thatched roof and bamboo shutters and interior mirrors was destroyed. Weighted deck loungers were blown across the pool deck and significant landscaping damage occurred on the waterfront side of the hotel. The tornado quickly dissipated over U.S. Highway 1, and was likely a non-supercell spawned waterspout. Estimated maximum winds were near 70 mph. A fast-moving squall line producing damaging winds and a tornado in Key Largo. The tornado was observed as a waterspout in Florida bay just offshore, which made landfall.

FLORIDA, Northeastern Gilchrist County 1 S Lottieville 25 1133EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees were reported blown down near County Road 334A and State Road 26.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Gilchrist County 6 E Tyler 25 1140EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down near County Road 337 and State Road 26.

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

53 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

FLORIDA, Northeastern Alachua County Gainesville West 25 1155EST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail was reported at the intersection of Southwest 6th Street and Southwest 3rd Avenue in Gainesville.

Alachua County 1 W Gainesville North 25 1230EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

A person was trapped in a home when a tree fell onto the structure along Southeast 73rd Terrace. The cost of damage was estimated. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Marion County 3 N Flemington 25 1255EST 0 0 0.00K 2.00K Thunderstorm Wind (50EG)

Trees, power lines, fences and tree limbs were blown down. There was significant crop damage done. Pea size hail was also observed and 1.62 inches of rainfall fell in about 25 minutes. The cost of crop damage was estimated.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Alachua County 1 W Island Grove 25 1315EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Numerous trees were blown down near the Orange Lake area. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Marion County 1 WNW Martel 25 1330EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down along Northwest 27th Avenue. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Putnam County 1 NW East Palatka 25 1355EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Power lines were blown down along south U.S. Highway 17. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Putnam County Interlachen 25 1411EST 0 0 1.00K 0.00K Thunderstorm Wind (45EG)

A tree limb was blown down an damaged a car port. The cost of damage was estimated.

Note: The estimated wind gust of 45 knots is equivalent to 52 mph. Alachua County 3 SSW Newberry 25 1413EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Numerous trees were blown down along Highway 26 and Highway 90.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Alachua County 2 NW Windsor 25 1413EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Numerous trees and power lines were blown down near Newmans Lake.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Flagler County Bunnell 25 1420EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down onto a transformer on 600 North Orange Avenue. Trees were blown down onto power lines at 807 Hymon Circle. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

54 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

FLORIDA, Northeastern Hamilton County 1 S Marion 25 1500EST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported in Suwanee Springs. The time of the event was based on radar.

Duval County 1 E Maxville 25 1610EST 0 0 0.00K 0.00K Hail (0.75)

Penny to half inch size hail was reported 2 miles east of County Road 218 and Highway 301.

Putnam County East Palatka 25 1701EST 0 0 0.00K 0.00K Funnel Cloud

A funnel cloud was sighted near State Road 207 and U.S. Highway 17.

Putnam County 1 E East Palatka 25 1715EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Power lines were blown down in East Palatka which caused power outages.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Clay County 4 WNW Meadowbrook 25 1721EST 0 0 0.00K 0.00K Hail (1.00)

The public reported quarter size hail at 4565 Saddlehorn Trail in Middleburg.

Clay County 1 W Mill Creek 25 1730EST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported in the Fox Meadows sub-division.

Duval County Atlantic Beach 25 1759EST 0 0 0.00K 0.00K Hail (1.00)

Dime to quarter size hail was observed in Atlantic Beach. Marion County 1 ESE Belleview 25 2120EST 0 0 0.00K 0.00K Hail (1.75)

A store clerk reported golf-ball size hail along East Highway 25 just east of Belleview.

A pre-frontal line of convection strengthened across northeast Florida during the afternoon when a 40-50 kt 850mb jet from the southwest phased with the line across a moderately unstable and sheared atmosphere.

Suwannee County 3 ESE Branford 30 1855EST 0 0 68.00K 0.00K Thunderstorm Wind (61EG)

An approximate seven square mile area of straight line wind damage occurred as a result of a bowing line of thunderstorms. The area of most substantial damage had dozens of large trees uprooted and snapped. A total of 18 structures sustained damage with one mobile home destroyed by a large oak tree that fell through it. Damage indicators suggested maximum winds of around 70 mph. The cost of damage was estimated. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Gilchrist County 3 NNW Williford 30 1910EST 0 0 0.00K 0.00K Funnel Cloud

County emergency management relayed a report from law enforcement of a funnel cloud on Highway 130 between State Road 129 and County Road 47.

55 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

FLORIDA, Northeastern Columbia County 2 SSE Ft White 30 1910EST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Trees and power lines were blown down in the Three Rivers Estates area.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Suwannee County 5 ESE Branford 30 1910EST 0 0 2.00K 0.00K Thunderstorm Wind (61EG)

A barn roof was blown off and into an area of trees. The cost of damage was estimated.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Columbia County 1 E Ft White 30 1912EST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported at 1402 SW Tommy Light Street in Fort White.

Alachua County 2 NNW Gainesville North 30 2130EST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A tree was uprooted and fell on a home. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Alachua County 1 NW Gainesville West 30 2130EST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A tree was blown down on a home at 3621 NW 18th Terrace. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Alachua County 2 SSE Phifer 30 2130EST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A tree was blown down on a home at NW 22nd Avenue with no injuries reported.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Alachua County 2 WSW Phifer 30 2130EST 0 0 3.00K 0.00K Thunderstorm Wind (61EG)

Trees were blown down across the parking lot at 5830 NW 39th Avenue in Gainesville. Two telephone connection boxes were also damaged. The cost of damage was estimated. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Alachua County 1 W Gainesville North 30 2130EST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A tree fell on a home at 501 NW 30th Avenue. Water damage was occurring in the home at the time of the report due to tree damage. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Alachua County 2 ENE Phifer 30 2130EST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A tree was blown down onto a trailer with 2 people trapped inside. No injuries were reported.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Alachua County 1 NW Gainesville North 30 2135EST 0 0 5.00K 0.00K Thunderstorm Wind (61EG)

The Gainesville Sun reported that a woman was trapped inside her home due to trees that were blown down on it. The cost of damage was estimated. No injuries were reported. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

56 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

FLORIDA, Northeastern Alachua County 1 N Air Base 30 2140EST 0 0 1.00K 0.00K Thunderstorm Wind (50MG)

A Cessna plane was flipped at the Gainesville Regional Airport. No injuries were reported. The ASOS at the airport measured a wind gust of 57 mph at the time of damage. The cost of damage was estimated.

Note: The measured wind gust of 50 knots is equivalent to 58 mph. Alachua County 1 N Air Base 30 2140EST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

The Gainesville Sun reported a car port was destroyed in the Brittany Estates area off of Waldo Road. The cost of damage was estimated. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Alachua County Cross Creek 30 2155EST 0 0 8.00K 0.00K Thunderstorm Wind (61EG)

The public reported widespread damage at County Road 325 and Southeast 143 Street. Six large trees were either uprooted or snapped along a quarter mile path. All board fences along the path were blown over and power lines were blown down. The cost of damage was estimated. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Alachua County 2 SE Santa Fe Lake 30 2215EST 0 0 0.00K 0.00K Hail (1.00)

Southerly flow around high pressure, increasing atmospheric moisture, and a passing mid level short wave trough phased across our western Florida zones during the evening to yield a few severe storms that produced widespread wind damage and some large hail.

FLORIDA, Northwest Gadsden County 5 SSW Quincy 08 1338EST 1 75 0 0 Tornado (EF0)

A NWS survey crew, in conjunction with county emergency management, found the damage in this location to be consistent with an EF-0 tornado which touched down just southwest of Florida highway 267. The weak tornado then tracked north- northeastward onto Holt lane. The damage southwest of Holt lane was limited to trees snapped or uprooted, with a few non- substantial structures damaged on Holt lane. One outbuilding lost its roof. The tornado continued northeast crossing I-10 near exit 181.

Jefferson County 1 N Lloyd 08 1702EST 0 0 Thunderstorm Wind (56EG)

The NWS surveyed the area around Lloyd, FL at I-10 near exit 215. The damage in this area was limited to a few trees and an awning to a gas station just off FL highway 59, and was deemed consistent with straight line winds estimated around 65 mph.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Madison County 1 W Cherry Lake 08 1828EST 0 0 Thunderstorm Wind (50EG)

Numerous trees down in the Cherry Lake area, along with power outages. Wind speed unknown.

A few discrete supercells and small lines of strong/severe thunderstorms developed across the region ahead of strong upper system and associated cold front. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

Dixie County 2 SSW Old Town 25 1114EST 0 0 Thunderstorm Wind (50EG)

Large limb reported down on powerlines near 898th street and off Highway 346A.

Small severe thunderstorm moved inland off the Gulf and into Dixie county. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

57 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

FLORIDA, Northwest Bay County 1 NW Southport 30 1455CST 0 0 1.00K Lightning

Lightning caused electrical fire in wall of a building. Bay County 2 NNE Vicksburg 30 1638CST 0 0 Heavy Rain

Radio station WMBB reported 4.2 inches of rain in two hours in the Deerpoint Lake area in northern Bay county. Several roads reported flooded. Heavy rain produced a few areas of flooding in Northern FL.

FLORIDA, Southern Palm Beach County 1 ENE Belle Glade 12 1706EST 0.01 1 0 0 0.00K 0.00K Tornado (EF0)

The Palm Beach County Sherriff"s office reported a tornado 2 miles northeast of the Palm Beach County Sherriff's office substation along state road 80; however no damages or injuries occurred.

A brief tornado occurred 2 miles northeast of Belle Glade.

FLZ168 Palm Beach 16 1155EST 0 2 0.00K 0.00K Rip Current East winds of 15 to 25 mph created a high risk for rip currents along the east coast beaches of South Florida.

Glades County Moore Haven 26 0300EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

The Glades County Sherriff"s office reported a tree down in Moore Haven along with widespread power outages.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Collier County 4 NW Golden Gate 26 0645EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Damage to lanais and patio screens to a few homes in the Laurel Lakes subdivision just north of Golden Gate.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Collier County 5 E Naples Park 26 0645EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG) Downed trees were noted by a trained spotter along Immokalee Road between Logan Boulevard and Collier Boulevard.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Miami-Dade County 3 SSW Pennsuco 26 0914EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

An off-duty National Weather Service Employee estimated a wind gust of 60 MPH with a passing squall. Broadcast media also reported 10,000 power outages in Miami-Dade County. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Broward County 1 E (FLL)Ft Laudrdl Intl 26 1050EST 0 1 0.00K 0.00K Lightning

A ramp-side worker at the Ft Lauderdale/Hollywood International Airport was injured when lightning struck nearby. The morning incident occurred at gate F6. A round of severe weather in South Florida produces high wind gusts, down trees, and lightning damage.

58 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

FLORIDA, West Central Levy County Fanning Springs 25 1115EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Numerous trees and power lines were downed along County Road 314 in Fanning Springs.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Levy County Cedar Key 25 1230EST 0 0 0.00K 0.00K Hail (1.00)

The public reported quarter sized hail in Cedar Key. Levy County 7 SW Lake Stafford 25 1255EST 0 0 0.00K 0.00K Hail (0.75)

A trained spotter reported penny sized hail. Levy County 2 SSW Lake Stafford 25 1300EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Several trees and a power pole were blown down along County Road 326 just west of Morriston.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Hernando County 4 S Weeki Wachee Acres 25 1715EST 1720EST 0 0 0.00K 0.00K Hail (0.88)

Penny to nickel sized hail fell for five minutes near Spring Hill.

Hernando County Spring Hill 25 1715EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Two trees were downed in Spring Hill. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Pasco County 4 WNW Loyce 25 1720EST 0 0 0.00K 0.00K Hail (0.88)

The public reported nickel sized hail in Shady Hills. Pasco County 3 S Aripeka Comps Site 25 1720EST 0 0 20.00K 0.00K Thunderstorm Wind (52EG)

The walls of a mobile home collapsed destroying the building, shingles were blown off of a nearby building, and a tree was downed on the property of the Holy Grounds Homeless Shelter in Hudson. There were no injuries.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Hernando County 1 W Masaryktown 25 1730EST 0 0 20.00K 0.00K Thunderstorm Wind (52EG)

One tree was downed onto a house, and several other trees were downed across the road on Korbus Road in Masaryktown.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Pasco County Port Richey Comps Site 25 1730EST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)

The COMPS station at Port Richey measured a wind gust of 54 knots.

Note: The measured wind gust of 54 knots is equivalent to 62 mph. Pasco County 1 NW Gulf Harbors 25 1735EST 0 0 12.00K 0.00K Lightning

59 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

FLORIDA, West Central

Lightning struck just outside of a home on Pilots Place in New Port Richey causing damage inside and outside the home. The bolt struck a palm tree on the side of the house, damaging several spots along the tree's trunk, leaving marks on the ground next to the tree, shattering a large potted plant, breaking up a portion of the sea wall, and rupturing a gas line. Inside, the skylight dome fell into the living room shattering a glass table top as it fell and the windows were blown out on that side of the house. No one was injured inside the house.

Pinellas County 3 E Tarpon Springs 25 1745EST 1750EST 0 0 0.00K 0.00K Hail (1.00)

The public reported up to quarter sized hail falling for five minutes east of Tarpon Springs.

Manatee County Bayshore Gardens 26 0025EST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

A few trees were blown down, one home had minor roof damage, and a fence was blown down on Columbia Drive in Bayshore Gardens. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Polk County Fort Meade 26 0035EST 0 0 2.00K 0.00K Thunderstorm Wind (43EG)

A few large trees were snapped, along with numerous branches broken off and several powerlines downed in Fort Meade.

Note: The estimated wind gust of 43 knots is equivalent to 49 mph. Highlands County 2 SSE Lake Jackson 26 0105EST 0 0 2.00K 0.00K Thunderstorm Wind (43EG)

A 10 by 20 foot freezer at Camp Sparta in Sebring was blown apart. Small boats were also overturned and a few small trees were downed. Note: The estimated wind gust of 43 knots is equivalent to 49 mph. Highlands County 2 NE Lake Placid 26 0120EST 0 0 1.00K 0.00K Thunderstorm Wind (43EG)

A large tree branch broke off and fell onto a mobile home near the intersection of Lagrow Road and Lake Clay Drive.

A strong cold front moved through the area bringing severe thunderstorms with it. Large hail and wind damage occurred with the thunderstorms. Note: The estimated wind gust of 43 knots is equivalent to 49 mph.

FLZ060 Sarasota 30 1505EST 1 0 0.00K 0.00K Rip Current A weak trough lifted north over the area bringing showers and a few thunderstorms. Moderate to strong onshore winds from the tightened pressure gradient between the trough and high pressure ridging across the region caused rip currents to form along area beaches. M26IW

FLORIDA, West Panhandle Santa Rosa County Gulf Breeze 24 0358CST 0359CST 0 0 0.00K 0.00K Hail (0.88)

A thunderstorm produced hail in the Florida panhandle.

60 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GEORGIA, East Central Lincoln County 2 ESE Gill 08 1755EST 1758EST 0 0 Thunderstorm Wind (50EG)

Spotter reported large limbs down along Graball Road. A few severe storms developed ahead of a cold front that pushed across the Central Savannah River area on the evening of the 8th. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lincoln County 2 ESE Gill 08 1755EST 1757EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Spotter reported large limbs down. Severe thunderstorms produced wind damage and hail in the CSRA. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Columbia County 1 SSW Leah 08 1912EST 1915EST 0 0 Thunderstorm Wind (50EG)

Spotter reported large limbs down along Ridge Road. A few severe storms developed ahead of a cold front that pushed across the Central Savannah River area on the evening of the 8th. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Columbia County 2 SW Leah 08 1912EST 1914EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Spotter reported large limbs down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Columbia County 2 NW Pumpkin Center 08 1925EST 1927EST 0 0 0.00K 0.00K Hail (0.88)

SKYWARN reported penny to nickel size hail along I-20 at mile marker 181.

Severe thunderstorms produced wind damage and hail in the CSRA.

Burke County 6 SW Waynesboro Burke Arp 25 0505EST 0507EST 0 0 0.00K 2.00K Thunderstorm Wind (55EG)

Sheriff reported several trees down on Herndon road. An isolated severe thunderstorm took down some trees in Burke county. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. GEORGIA, Lower Coffee County 3 ENE Ambrose 08 1845EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Power lines were blown down. The report was from the Satilla Rural Electric Membership Corporation.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Echols County 5 W Statenville 08 1855EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down along Highway 94. Numerous showers and thunderstorms impacted southeast Georgia and portions of inland north Florida during the evening in advance of an approaching cold front. The strongest dynamics and instability phased across these zones in the evening which resulted in a couple of severe storms. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

Charlton County 2 SSE Newell 25 1555EST 0 0 0.00K 0.00K Hail (1.00)

61 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GEORGIA, Lower Camden County 1 S White Oak 25 1610EST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported near White Oak by local business.

A pre-frontal line of convection strengthened across southeast Georgia during the late afternoon when a 40-50 kt 850mb jet from the southwest phased with the line across a moderately unstable and sheared atmosphere.

GEORGIA, North and Central

GAZ007 Gilmer 01 1525EST 1700EST 0 0 17.0K 0.00K Wildfire

GAZ011 Chattooga 02 1445EST 2000EST 0 0 8.3K 0.00K Wildfire

GAZ006 Fannin 03 1100EST 1500EST 0 0 6.5K 0.00K Wildfire

GAZ008 Union 06 1330EST 1635EST 0 0 5.0K 0.00K Wildfire

After a very wet fall and winter, rainfall during the March and April period fell below normal in many areas, especially the north part of the state. Wildfires were on the increase during April 2010 with several human caused wildfires reported by the Georgia Forestry Commission during the month. Wildfires were reported in Gilmer, Chattooga, Fannin, Union, and Murray counties. The most significant wildfire during the month was actually the result of a T9 military aircraft crash in Fannin county just east of Blue Ridge. This incident fueled a 23 acre wild fire in the forests just east of Blue Ridge.

Morgan County 1 W Rehobeth 08 1550EST 1551EST 1.77 50 0 0 218.00K 0.00K Tornado (EF1)

A damage survey conducted by the National Weather Service Forecast Office in Peachtree City, Georgia confirmed that a brief EF1 tornado had touched down in northeast Morgan county, approximately two miles north-northeast of Bostwick. The tornado first touched down on High Shoals Road, just south of the intersection with Rehoboth Road, then continued on an east- northeastward path across Rehoboth Road, Price Mill Road, and River Walk Road before lifting near the Appalachee River. At the tornado touchdown point on High Shoals Road, the roof was blown off a chicken house. As the tornado crossed Rehoboth Road, the roof of a home sustained significant damage and an adjacent barn was destroyed. As the tornado continued across Price Mill Road, one home sustained major damage and was left uninhabitable. Many trees were also either blown down or uprooted in the area. As the tornado reached its final point along River Walk Road, a high voltage power line was destroyed and two additional homes sustained minor damage. In total, five homes, one chicken house, and five out buildings were damaged.

A strong cold front and increasingly negatively tilted upper trough was sweeping through the southeastern U.S. Strong shear accompanied this upper-level system, but instability was marginal at best. Several narrow lines of showers and thunderstorms accompanied the upper-level trough as it moved through Georgia during the day. The strongest line of thunderstorms developed in the mid-afternoon across west central Georgia and moved quickly into east central Georgia by late afternoon. A small cell along this line of thunderstorms in northern Morgan county of east central Georgia produced a brief EF1 tornado. This was the only event reported with this weather system.

62 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GEORGIA, North and Central

A home in northeast Morgan county sustaining significant damage by an EF1 tornado during the late afternoon of April 8, 2010. Photograph courtesy: NWS Peachtree City, GA.

GAZ005 Murray 11 0200EST 1900EST 0 0 2.2K 0.00K Wildfire

GAZ006 Fannin 12 1530EST 2300EST 0 0 26.0K 0.00K Wildfire

After a very wet fall and winter, rainfall during the March and April period fell below normal in many areas, especially the north part of the state. Wildfires were on the increase during April 2010 with several human caused wildfires reported by the Georgia Forestry Commission during the month. Wildfires were reported in Gilmer, Chattooga, Fannin, Union, and Murray counties. The most significant wildfire during the month was actually the result of a T9 military aircraft crash in Fannin county just east of Blue Ridge. This incident fueled a 23 acre wild fire in the forests just east of Blue Ridge.

Macon County 2 ENE Montezuma 20 1445EST 1449EST 0 0 1.00K 0.00K Thunderstorm Wind (35EG)

The Macon County Sheriff's office reported that four trees were blown down near Georgia Highway 224 between Shiloh Church Road and Mennonite School Road, just east-northeast of Montezuma. A funnel cloud was also observed by the public in this area at the time. Note: The estimated wind gust of 35 knots is equivalent to 40 mph. Clayton County 2 S Riverdale 20 1723EST 3 W Jonesboro 1725EST 0 0 0.00K 0.00K Hail (1.00)

The public observed quarter-sized hail between Riverdale and Jonesboro.

Henry County 3 E Mc Donough 20 1809EST 1811EST 0 0 0.00K 0.00K Hail (1.00)

The public observed quarter-sized hail on the east side of McDonough.

63 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GEORGIA, North and Central

An upper low was moving southeast from central Kentucky and Tennessee toward the southeast U.S. Unstable northwest flow aloft was evident across the region. Considerable dynamics and shear were noted with this system, but thermodynamics and instability were very limited as a very dry, stable air mass had resided over the area during previous days. Widespread showers and thunderstorms were noted across the area throughout much of the day. Isolated thunderstorms became strong to severe during the afternoon producing gusty winds and marginal severe hail. Strong rotation in one storm even prompted a tornado warning during the evening.

Harris County 4 SSW Hamilton 24 0450EST 5 SE Pine Mtn Vly 0500EST 0 0 0.00K 0.00K Hail (0.75)

The Harris County Emergency Management Director relayed reports of penny-sized hail near Hamilton and Pine Mountain Valley. Paulding County Yorkville 24 1057EST 4 NW Dallas 1106EST 0 0 0.00K 0.00K Hail (1.00)

The public observed quarter-sized hail from the west central part of the county near Yorkville to the central part of the county, just northwest of Dallas. Cobb County 2 NW Lost Mtn 24 1112EST Due West 1114EST 0 0 0.00K 0.00K Hail (0.75)

The public observed penny-sized hail in the west central part of the county, just northwest of Lost Mountain State Park.

Floyd County Lindale 24 1559EST Rome 1604EST 0 0 1.00K 0.00K Thunderstorm Wind (35EG)

The Floyd County Emergency Management Director reported that two trees and one power line were down between Lindale and Rome. Note: The estimated wind gust of 35 knots is equivalent to 40 mph. Chattooga County 3 NW Cloudland 24 2333EST 1 W Welcome Hill 2346EST 10.06 300 0 0 1.20M 0.00K Tornado (EF1)

A damage survey conducted by the National Weather Service Forecast Offices in both Huntsville, Alabama and Peachtree City, Georgia confirmed that an EF1 tornado, which initially touched down in eastern DeKalb county Alabama approximately three miles southeast of Valley Head, Alabama, continued into Chattooga county Georgia, crossing into Georgia approximately two miles northwest of Cloudland in northwest Chattooga county. The tornado continued on a nearly 10 mile long path within Chattooga county ending approximately 2.5 miles northwest of Trion in north central Chattooga county. The tornado was rated an EF1 with a maximum path width of 300 yards and maximum wind gusts estimated to be 105 mph. Considerable damage was noted along the tornado path across far northwest and north central Chattooga county. At the touchdown point, at least 15 large trees were down across a one-half mile wide area. As the tornado continued eastward, it crossed Georgia Highway 157 at Gilreath Mill Road. Hunderds of large mature trees were down near the intersection. Just east of this location, the tornado strengthened to its maximum width and intensity. This was determined to be the mid-point of the tornado path, between Georgia Highway 337 and Harrisburg Road. Within this area, eight homes sustained significant damage. Two garages, one carport, and several private storage buildings were destroyed. At a small grass airport strip, one hanger was destroyed, another suffered extensive damage, and two airplanes were flipped over. One of the airplanes was an 800 lb ultralight and the other was a 1500 lb Cessna. Nearby, a home lost its roof, another suffered extensive shingle damage, and another storage building was destroyed. At the location of this destroyed outbuilding, two lawn mowers were moved 90 feet. From this point to the end of the tornado path, hundreds of large, mature oak, pecan, and pine trees were blown down or uprooted. Center Post Road, near the end point of the tornado path, was blocked because of numerous downed trees. Damage to homes, businesses, the airport, and timber land, along with cleanup, was estimated to be $1.2 million.

64 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GEORGIA, North and Central

Damaged and destroyed airplane hangers and an overturned Cessna Airplane at a small grass airstrip in north central Chattooga county near the Walker county line. The damage was the result of an EF1 tornado that moved through the area around 1245 am EDT on April 25, 2010. Photograph courtesy of the Warning Coordination Meteorologist from the National Weather Service Forecast Office in Peachtree City, GA.

Walker County 1 SW Center Post 24 2345EST Villanow 25 0001EST 0 0 3.00K 0.00K Thunderstorm Wind (43EG)

The Walker County 911 Center reported that more than seven trees were down along a path from near Center Post and the Chattooga county line toward Villanow. This damage was caused by the same thunderstorm that spawned the tornado in Chattooga county. No structural damage was observed in Walker county.

Note: The estimated wind gust of 43 knots is equivalent to 49 mph. Houston County Kathleen 25 0001EST Bonaire 0005EST 0 0 0.00K 0.00K Hail (0.75)

Amateur radio operators relayed reports of penny-sized hail near Kathleen.

Jasper County Monticello 25 0029EST Shady Dale 0035EST 0 0 0.00K 0.00K Hail (0.75)

The Jasper County 911 Center reported penny-sized hail. Murray County 3 WSW Chatsworth 25 0034EST 0043EST 0 0 2.00K 0.00K Thunderstorm Wind (39EG)

The Murray County Sheriff's Office reported that a few power lines were down in the Chatsworth area.

Note: The estimated wind gust of 39 knots is equivalent to 45 mph. Houston County 1 S Heard 25 0100EST 0 0 150.00K 0.00K Lightning

The Houston Home Journal of Perry reported that lightning struck and set a home on fire on Sandefur Road. The home sustained major damage as the roof was almost completely destroyed.

65 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GEORGIA, North and Central

A classic tornadic spring storm system was moving from the southern plains toward the Midwest and Ohio Valley as an intense, negatively tilted upper low and associated deep surface low lifted northeast from the Arklatex region toward the Ohio Valley. The Storm Prediction Center had indicated a high risk of severe thunderstorms and tornadoes across western Tennessee, northern and central Alabama, and northern Mississippi. A moderate risk of severe thunderstorms and tornadoes was projected into north central and northwest Georgia as well. Deadly tornadoes had already occurred in northern Mississippi with this event. However, a weak wedge of cooler, most stable air remained in place across much of north and east Georgia thanks to persistent showers and thunderstorms during the morning hours of the 24th. A few of these morning and afternoon storms produced marginal severe hail. Toward midnight, a long lived supercell tracked across north Alabama and into northwest Georgia before finally diminishing across western Fannin county. This storm spawned several tornadoes along its path, including an EF1 tornado that tracked across the Alabama/Georgia border from DeKalb county in Alabama into Chattooga county, Georgia. Fortunately, this was the only tornado observed in Georgia with this major spring storm system.

Johnson County Wrightsville 27 0700EST Kite 0705EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

The Johnson County Emergency Management Director reported that at least seven trees were down between Wrightsville and Kite. Two trees fell on and destroyed a batting cage on private property in Wrightsville. A tree in Kite fell on an unoccupied vehicle. Most of the downed trees were around Wrightsville. Power was out in much of the county for about two hours.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Floyd County 4 N Coosa 27 1528EST Silver Creek 1545EST 0 0 100.00K 0.00K Thunderstorm Wind (50EG)

The Floyd County Emergency Management Director reported that strong wind gusts associated with a line of showers and isolated thunderstorms blew down at least a dozen trees across the county. An apartment building and adjacent garage were heavily damaged when a large oak tree fell on the structures. A vehicle was also damaged from a large downed tree limb. Some power lines were also impacted by the downed trees. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cobb County 1 S Smyrna 27 1609EST 4 E Mableton 1613EST 0 0 0.00K 0.00K Hail (0.75)

The public observed penny-sized hail just east and southeast of Smyrna, especially near the intersection of Interstate-75 and Interstate-285. Most of the hail was pea size. Fulton County 4 WNW Atlanta 27 1615EST 1618EST 0 0 0.00K 0.00K Hail (0.75)

The public observed penny-sized hail in downtown Atlanta and on the east side of Atlanta near Little Five Points. Most of the hail was pea size. De Kalb County 3 SSW Druid Hills 27 1623EST 1627EST 0 0 0.00K 0.00K Hail (0.75)

The public observed penny-sized hail near East Lake in west central DeKalb county. Most of the hail was pea size.

Coweta County 5 W Sargent 27 1630EST Senoia 1700EST 0 0 25.00K 0.00K Thunderstorm Wind (50EG)

The Times Herald of Newnan reported that strong winds from showers and isolated thunderstorms blew down a number of trees and several power lines across the county. A home on Fifth Street near downtown sustained minor damage when a large tree fell on the structure. The roof and guttering on the back of the home was damaged. Power was out in the Newnan area for nearly an hour.

66 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GEORGIA, North and Central

An Alberta clipper type system was moving quickly through the east and southeast U.S. bringing a surge of unusually cold air into the region. Moisture was quite limited in the wake of the strong storm system that had just passed through the area on the 25th. However, even with the lack of surface moisture and instability, very strong dynamics and cold air aloft allowed showers and even a few thunderstorms to develop during the afternoon and evening as the cold front and upper trough swept through the region. The activity was characterized by very little lightning, but a very low freezing level and strong evaporative cooling allowed wind gusts of 40 to 50 mph and dime to penny-sized hail to accompany many of the showers and thunderstorms that passed through the area during the afternoon and evening hours. Temperatures dropped nearly 20 degrees from the 70s into the 50s with the passage of the showers as well. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

GEORGIA, Southeast

GAZ087 Jenkins 27 1950EST 0 0 0.5K 0.00K Strong Wind A strong cold front and upper level disturbance pushed through southeast Georgia, resulting in 40 to 50 mph winds gusts.

GEORGIA, Southwest Early County Nicholasville 08 1424EST 0 0 Thunderstorm Wind (50EG)

A 60 foot greenhouse destroyed by downburst. Time and wind speeds estimated.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Irwin County 5 W Osierfield 08 1810EST 0 0 Thunderstorm Wind (50EG)

Report of a few trees down in Northeast portion of the county.

A few discrete supercells and small lines of strong/severe storms developed and moved across the region. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. HAWAII

HIZ001-008>009- Big Island North and East - Kauai Windward - Maui Windward West - Molokai Windward - Niihau - 012-017-020-025 Oahu Koolau - Olomana - Windward Haleakala 01 0000HST 05 0800HST 0 0 0.00K 0.00K High Surf

A trade wind swell generated surf of 6 to 9 feet along the east-facing shores of all the islands except Lanai. There were no reports of significant injuries or property damage. This is a continuation of a high surf episode from the end of March.

HIZ002-013>015- Big Island Interior - Kauai Windward - Kohala - Kona - Lanai Makai - Lanai Mauka - Leeward 017>019-021-023> Haleakala - Maui Central Valley - Maui Leeward West - Maui Windward West - Molokai Leeward - 024-026>027 South Big Island 01 0000HST 30 2359HST 0 0 0.00K 0.00K Drought

Dry weather conditions persisted, or became worse, over parts of Kauai, Molokai, Lanai, Maui, and the Big Island of Hawaii. County officials maintained water restrictions.

Honolulu County 1 NE Haleiwa 06 2023HST 1 ESE Kailua 07 0652HST 0 0 0.00K 0.00K Heavy Rain

Kauai County 1 S Mana 07 0928HST 2 NNW Anahola 1630HST 0 0 0.00K 0.00K Heavy Rain

67 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

HAWAII Honolulu County 1 NE Haleiwa 07 1522HST 1 E Maili 1732HST 0 0 0.00K 0.00K Heavy Rain

Kauai County 1 SSE Princeville 07 2334HST 08 0628HST 0 0 0.00K 0.00K Flash Flood

Kuhio Highway was closed by the Kauai Police at the Hanalei Bridge because of flooding along the Hanalei River.

Kauai County 1 ENE Na Pali Coast Sp 08 0721HST 1 ENE Koloa 1007HST 0 0 0.00K 0.00K Heavy Rain

Hawaii County 4 E Kawaihae 09 1538HST 5 SSW Waikoloa Beach Resort 1731HST 0 0 0.00K 0.00K Heavy Rain

An upper trough over the islands produced heavy rain on Oahu and the Big Island of Hawaii, and flash flooding conditions in Kauai. However, no serious property damage or injuries were reported.

HIZ001>003-007> Kauai Leeward - Kauai Windward - Maui Central Valley - Maui Windward West - Molokai Leeward - 009-012>013-017- Molokai Windward - Niihau - Oahu Koolau - Oahu North Shore - Olomana - Windward Haleakala 019>020 13 0500HST 14 1200HST 0 0 0.00K 0.00K High Surf

A swell from a low northwest of the islands caused surf of 10 to 15 feet along the north- and west-facing shores of Niihau and Kauai, and 10 to 15 feet along the north-facing shores of Oahu, Maui, and Molokai. No significant injuries or property damage were reported.

16 1900HST 17 2200HST 0 0 0.00K 0.00K High Surf

HIZ002-008-012- Big Island North and East - Kauai Windward - Maui Central Valley - Maui Windward West - Molokai 017-019>020-025 Windward - Oahu Koolau - Olomana - Windward Haleakala 16 1900HST 17 2200HST 0 0 0.00K 0.00K High Surf

A swell from a low north-northeast of the state produced surf of 6 to 8 feet along the east-facing shores of all the isles except Lanai. There were no reports of significant property damage or injuries.

Honolulu County Makaha 21 1035HST 1050HST 0 0 0.00K 0.00K Dust Devil

A dust devil momentarily lifted several children off the ground at Makaha Elementary School in West Oahu, causing a few minor injuries. There were no reports of property damage. Wind gusts with the dust devil were estimated near 60 mph.

HIZ001>003-006> Kauai Leeward - Kauai Windward - Maui Windward West - Molokai Leeward - Molokai Windward - 008-012>013-017- Niihau - Oahu Koolau - Oahu North Shore - Waianae Coast - Windward Haleakala 020 22 0600HST 23 0300HST 0 0 0.00K 0.00K High Surf

A swell from a strong low far northwest of the Aloha State generated surf of 10 to 15 feet along the north- and west-facing shores of Niihau, Kauai, Oahu, and Molokai; and the north-facing shores of Maui. No serious injuries or property damage were reported.

26 0400HST 27 1500HST 0 0 0.00K 0.00K High Surf

68 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

HAWAII HIZ002-005-013> Big Island North and East - Kahoolawe - Kauai Leeward - Kauai Windward - Kona - Lanai Makai - 014-016-018>021- Leeward Haleakala - Maui Central Valley - Maui Leeward West - Molokai Leeward - Oahu South Shore - 023>025 South Big Island - Windward Haleakala 26 0400HST 27 1500HST 0 0 0.00K 0.00K High Surf

A swell from a storm low in the southern hemisphere caused surf of 6 to 10 feet along the south-facing shores of all the islands. There were no reports of significant injuries or property damage.

HIZ001-008>009- Big Island North and East - Kauai Windward - Maui Windward West - Molokai Windward - Niihau - 012-017-020-025 Oahu Koolau - Olomana - Windward Haleakala 01 0000HST 05 0800HST 0 0 0.00K 0.00K High Surf

A trade wind swell generated surf of 6 to 9 feet along the east-facing shores of all the islands except Lanai. There were no reports of significant injuries or property damage. This is a continuation of a high surf episode from the end of March.

HIZ002-013>015- Big Island Interior - Kauai Windward - Kohala - Kona - Lanai Makai - Lanai Mauka - Leeward 017>019-021-023> Haleakala - Maui Central Valley - Maui Leeward West - Maui Windward West - Molokai Leeward - 024-026>027 South Big Island 01 0000HST 30 2359HST 0 0 0.00K 0.00K Drought

Dry weather conditions persisted, or became worse, over parts of Kauai, Molokai, Lanai, Maui, and the Big Island of Hawaii. County officials maintained water restrictions.

Honolulu County 1 NE Haleiwa 06 2023HST 1 ESE Kailua 07 0652HST 0 0 0.00K 0.00K Heavy Rain

Kauai County 1 S Mana 07 0928HST 2 NNW Anahola 1630HST 0 0 0.00K 0.00K Heavy Rain

Honolulu County 1 NE Haleiwa 07 1522HST 1 E Maili 1732HST 0 0 0.00K 0.00K Heavy Rain

Kauai County 1 SSE Princeville 07 2334HST 08 0628HST 0 0 0.00K 0.00K Flash Flood

Kuhio Highway was closed by the Kauai Police at the Hanalei Bridge because of flooding along the Hanalei River.

Kauai County 1 ENE Na Pali Coast Sp 08 0721HST 1 ENE Koloa 1007HST 0 0 0.00K 0.00K Heavy Rain

Hawaii County 4 E Kawaihae 09 1538HST 5 SSW Waikoloa Beach Resort 1731HST 0 0 0.00K 0.00K Heavy Rain

An upper trough over the islands produced heavy rain on Oahu and the Big Island of Hawaii, and flash flooding conditions in Kauai. However, no serious property damage or injuries were reported.

HIZ001>003-007> Kauai Leeward - Kauai Windward - Maui Central Valley - Maui Windward West - Molokai Leeward - 009-012>013-017- Molokai Windward - Niihau - Oahu Koolau - Oahu North Shore - Olomana - Windward Haleakala 019>020 13 0500HST 14 1200HST 0 0 0.00K 0.00K High Surf

69 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

HAWAII

A swell from a low northwest of the islands caused surf of 10 to 15 feet along the north- and west-facing shores of Niihau and Kauai, and 10 to 15 feet along the north-facing shores of Oahu, Maui, and Molokai. No significant injuries or property damage were reported.

16 1900HST 17 2200HST 0 0 0.00K 0.00K High Surf

HIZ002-008-012- Big Island North and East - Kauai Windward - Maui Central Valley - Maui Windward West - Molokai 017-019>020-025 Windward - Oahu Koolau - Olomana - Windward Haleakala 16 1900HST 17 2200HST 0 0 0.00K 0.00K High Surf

A swell from a low north-northeast of the state produced surf of 6 to 8 feet along the east-facing shores of all the isles except Lanai. There were no reports of significant property damage or injuries.

Honolulu County Makaha 21 1035HST 1050HST 0 0 0.00K 0.00K Dust Devil

A dust devil momentarily lifted several children off the ground at Makaha Elementary School in West Oahu, causing a few minor injuries. There were no reports of property damage. Wind gusts with the dust devil were estimated near 60 mph.

HIZ001>003-006> Kauai Leeward - Kauai Windward - Maui Windward West - Molokai Leeward - Molokai Windward - 008-012>013-017- Niihau - Oahu Koolau - Oahu North Shore - Waianae Coast - Windward Haleakala 020 22 0600HST 23 0300HST 0 0 0.00K 0.00K High Surf

A swell from a strong low far northwest of the Aloha State generated surf of 10 to 15 feet along the north- and west-facing shores of Niihau, Kauai, Oahu, and Molokai; and the north-facing shores of Maui. No serious injuries or property damage were reported.

26 0400HST 27 1500HST 0 0 0.00K 0.00K High Surf

HIZ002-005-013> Big Island North and East - Kahoolawe - Kauai Leeward - Kauai Windward - Kona - Lanai Makai - 014-016-018>021- Leeward Haleakala - Maui Central Valley - Maui Leeward West - Molokai Leeward - Oahu South Shore - 023>025 South Big Island - Windward Haleakala 26 0400HST 27 1500HST 0 0 0.00K 0.00K High Surf

A swell from a storm low in the southern hemisphere caused surf of 6 to 10 feet along the south-facing shores of all the islands. There were no reports of significant injuries or property damage.

IDAHO, Northwest

IDZ001-004 Central Panhandle Mountains - Northern Panhandle 02 1100PST 03 0100PST 0 0 0.00K 0.00K Heavy Snow

A strong frontal passage brought late season heavy snow in the mountains of North Idaho. Silver Mountain Ski Resort and Lookout Pass picked up four to eight inches of snow. Meanwhile, Schweitzer Ski Resort reported 11 inches of snow.

IDZ001-004 Central Panhandle Mountains - Northern Panhandle 08 0000PST 1700PST 0 0 0.00K 0.00K Heavy Snow

A moist and strong cold front brought late season heavy snow to the mountains of North Idaho. Snow accumulations from SNOTEL's include 10 inches Hidden Lake, five inches Bear Mountain, Lost Lake seven inches, and Silver Mountain Ski Resort four to eight inches.

70 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IDAHO, Northwest IDZ003-004 Central Panhandle Mountains - Idaho Palouse 08 0700PST 1300PST 0 0 20.0K 0.00K Strong Wind

IDZ002 Southwest and West Kootenai 08 1130PST 1600PST 0 0 0.00K High Wind

IDZ001 Northern Panhandle 08 1130PST 1600PST 0 0 15.0K 0.00K Strong Wind

Strong gusty winds along and behind a cold front passage led to downed trees and power lines over portions of North Idaho. About 3,700 customers lost power in Moscow for about 20 minutes. One tree fell and struck two cars in Moscow. In Kingston, a rotted pine tree fell on a home and damaged the chimney and storage shed. A power line was also taken out when the tree fell. Around 300 customers lost power in Kellogg and St. Maries. In Sandpoint, downed trees led to minor damage with one tree falling on a pickup truck. A spruce tree, 80 feet tall, was blown down taking out a wooden fence and totaling a car. At Hayden Lake, Harrison, and Coeur D'Alene 1,000 power outages were reported.

IDZ004 Central Panhandle Mountains 27 2200PST 30 0800PST 0 0 0.00K 0.00K Heavy Snow

A persistent area of wrap around precipitation from a low pressure system over Idaho and Montana brought heavy snow to the Central Panhandle Mountains. Snow accumulations from SNOTEL's include nine inches at Mica Creek, ten inches at Lost Lake, and seven inches Bear Mountain.

IDAHO, Southeast

IDZ019 Upper Snake Highlands 02 1600MST 03 1300MST 0 0 0.00K 0.00K Heavy Snow

Less than warning criteria snowfall occurred in the Upper Snake River Highlands causing road closures on Saturday morning April 3rd. 8 inches of snow fell in Ashton and 8.5 inches fell in Island Park. State Highway 33 was closed from Newdale to Tetonia from milepost 107 to milepost 131, and State Highway 32 was closed from milepost 0 to milepost 28 due to reduced visibility.

IDZ020-025 Upper Snake River Plain - Wasatch Mountains/Idaho Portion 05 0400MST 06 1000MST 0 0 0.00K 0.00K Heavy Snow

Eight to 16 inches of snow fell in the Idaho Wasatch and 6 to 10 inches of snow fell in the Upper Snake River Plain. Several Idaho Falls area schools were closed on April 6th including Idaho Falls district 91, Bonneville district 93, Shelley district 60, and Ririe district 252.

Fremont County St Anthony 21 1550MST 1610MST 0 0 4.00K 0.00K Thunderstorm Wind (60EG)

Thunderstorm winds blew down a large sign at Simplot in St Anthony. The same storm also blew over a fuel shed on the south side of town near Simplot. Thunderstorm winds blew down a large sign at Simplot in St Anthony. The same storm also blew over a fuel shed on the south side of town near Simplot. Note: The estimated wind gust of 60 knots is equivalent to 69 mph.

IDZ021 Lower Snake River Plain 27 1335MST 1755MST 0 0 4.0K 0.00K High Wind

Very strong non-thunderstorm winds caused damage to buildings in the city of Chubbuck. 20 to 25 feet of roof from Inter Mountain Storage was torn off and blown across the street. And a greenhouse suffered extensive damage in the city as well. In Pocatello the wind uprooted trees and caused roof damage.

71 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IDAHO, Southwest Boise County 5 W Centerville 27 1615MST 1630MST 0 0 Hail (1.75)

Trained spotters near Centerville reported hail from .88 inches to 1.75 inches.

A strong cold front ahead of a very cold upper low pushed through Eastern Oregon and Southwest Idaho on 27th bringing thunderstorms with strong, gusty winds and large hail.

ILLINOIS, Central Fulton County 3 E Lewistown 04 1825CST Little America 1835CST 0 0 30.00K 0.00K Thunderstorm Wind (52EG)

Wind damage reported along Highway 24 from 3 miles east of Lewistown to Little America. Numerous tree branches were blown down and several picnic tables were overturned along this path.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mason County 3 NE Buzzville 04 1835CST 1836CST 0 0 15.00K 0.00K Thunderstorm Wind (52EG)

Numerous 6 diameter branches were blown down near Goofy Ridge.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Fulton County 4 E Little America 04 1840CST 1845CST 0 0 40.00K 0.00K Thunderstorm Wind (52EG)

Lawn furniture, tree branches, and sheet metal were blown down.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Tazewell County South Pekin 04 1903CST 1904CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Several large tree limbs were blown down in South Pekin. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Tazewell County Tremont 04 1905CST 1906CST 0 0 0.00K 0.00K Hail (0.88)

The hail lasted for 3 minutes and a 42 mph wind gust was also observed.

Mclean County Le Roy 04 2019CST 2020CST 0 0 0.00K 0.00K Hail (0.88)

Shelby County 2 S Oconee 04 2309CST 2310CST 0 0 40.00K 0.00K Thunderstorm Wind (52EG)

A couple of outbuildings were damaged, with sheet metal roofing blown nearly a mile away.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cumberland County Toledo 05 0030CST 0035CST 0 0 30.00K 0.00K Thunderstorm Wind (52EG)

72 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Central

A downburst caused minor wind damage on the southwest side of Toledo. A wood fence and travel trailer were blown over. In addition, several small limbs were blown down and 3 houses lost shingles.

A cold front dropped into central Illinois during the evening of April 4th, triggering a broken line of thunderstorms. Upper- level impulses traveling along the boundary helped create isolated strong to severe storms along the line. A few reports of nickel-sized hail and wind gusts in excess of 60 mph were observed. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Edgar County 4 WSW Nevins 05 1453CST 1454CST 0 0 0.00K 0.00K Hail (1.00)

Edgar County 4 WSW Nevins 05 1457CST 1458CST 0 0 0.00K 0.00K Hail (1.75)

Clark County 2 S Oliver 05 1510CST 1511CST 0 0 0.00K 0.00K Hail (1.75)

Clark County 2 S Oliver 05 1510CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

A 65 mph wind gust was estimated. No damage was reported. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Edgar County Paris 05 1617CST 1618CST 0 0 0.00K 0.00K Hail (0.88)

Piatt County 2 N La Place 05 1630CST 1631CST 0 0 0.00K 0.00K Hail (0.75)

Macon County Long Creek 05 1631CST 1632CST 0 0 0.00K 0.00K Hail (0.75)

Supercell thunderstorms developed along an advancing warm front during the afternoon of April 5th. Many of the storms produced large hail and a few caused 50 to 60 mph wind gusts as well.

Macon County Decatur 07 1329CST 1330CST 0 0 0.00K 0.00K Hail (0.75)

Mclean County 2 N Holder 07 1345CST 1346CST 0 0 0.00K 0.00K Hail (0.88)

Mclean County 4 W Chenoa 07 1345CST 1346CST 0 0 8.00K 0.00K Thunderstorm Wind (52EG)

A swimming pool was damaged by thunderstorm winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jasper County Newton 07 1605CST 1606CST 0 0 0.00K 0.00K Hail (0.88)

73 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Central Crawford County Annapolis 07 1633CST 1634CST 0 0 0.00K 0.00K Hail (1.00)

Surface low pressure tracked from Missouri toward the Great Lakes, pulling a cold front into central Illinois on April 7th. Aided by an upper-level impulse, several discrete cells developed along the front during the afternoon. Many of the storms produced large hail. Clay County 1 NW Flora 24 1825CST 1826CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A 30 foot tall tree was blown down. Low pressure tracking from the Plains into the southern Great Lakes triggered scattered strong to severe thunderstorms across central Illinois during the evening of April 24th. While low-level wind shear was quite high, the overall instability remained low. As a result, only one thunderstorm cell managed to produce wind damage across Clay County. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

ILZ043-053-066 De Witt - Effingham - Macon - Piatt 29 1124CST 1646CST 0 0 29.5K 0.00K High Wind

A tightening pressure gradient between a departing high and an approaching deep low produced widespread winds of between 45 and 55 mph across central Illinois on April 29th. The strongest winds gusting as high as 60 mph occurred in a corridor from Springfield to Danville, where minor damage was reported.

Clay County 5 W Flora 30 2250CST 2251CST 0 0 8.00K 0.00K Thunderstorm Wind (52EG)

An 8-inch diameter tree limb was blown onto a garage on Old Route 50 and Mahogany Road. Minor roof damage was reported. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Clay County 1 NE Flora 30 2255CST 2256CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A tree was blown down at Moore's Mill Bridge. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Clay County 1 NW Flora 30 2255CST 2256CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A tree was blown down across Route 45 just northwest of Flora.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Clay County Flora 30 2255CST 2256CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

A 2 foot diameter tree limb was blown down in Flora. Numerous power outages were reported on the south side of town.

A cold front pushed into central Illinois from the west on April 29th, triggering scattered thunderstorms. Strong to severe storms occurred across parts of Iowa and Missouri during the day but tended to weaken considerably as they crossed the Mississippi River into Illinois. One isolated severe cell managed to produce wind damage across Clay County later in the evening before quickly shifting eastward into Indiana. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

74 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northeast Cook County 1 SSE Fernway 04 1521CST 1522CST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail was reported at 179th Street and 84th Avenue.

Cook County Worth 04 1649CST 1650CST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail was reported in Worth. Thunderstorms moved across parts of northern Illinois during the afternoon of April 4th producing numerous reports of pea size hail along with a few reports of larger hail.

Ogle County 1 N Hazelhurst 05 2000CST 0 0 75.00K 0.00K Thunderstorm Wind (70EG)

A corn crib was completely destroyed along Brookville Road, spilling about 18,000 bushels of corn. A machine shed was also destroyed at the same location. Roof and window damage was reported to other buildings in the area. Trees, tree limbs and power lines were also blown down. Windows were broken on a tractor.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Ogle County 1 NNE Buffalo Grove 05 2002CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)

The roof of a hog house was blown off along Eagle Point Road.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Ogle County 1 W Polo 05 2002CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Trees were blown down just west of Polo. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Ogle County 3 NE Buffalo 05 2005CST 0 0 25.00K 0.00K Thunderstorm Wind (65EG)

A grain elevator was damaged at a farm on Canada Road. Part of the elevator fell onto a machine shed and damaged a boat.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Ogle County Forreston 05 2010CST 2011CST 0 0 0.00K 0.00K Hail (0.75)

Ogle County Mt Morris 05 2010CST 2011CST 0 0 0.00K 0.00K Hail (1.00)

Lee County 3 N Franklin Grove 05 2015CST 0 0 3.00K 0.00K Thunderstorm Wind (56EG)

Two utility poles and a power line were blown down near Daysville and Nalor Roads.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Lee County Franklin Grove 05 2015CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)

A wind gust to 60 mph was measured in Franklin Grove. Note: The measured wind gust of 52 knots is equivalent to 60 mph.

75 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northeast Ogle County Oregon 05 2015CST 0 0 5.00K 0.00K Thunderstorm Wind (60EG)

Trees, tree limbs and power lines were blown down. One tree fell onto a house.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Ogle County 3 ESE Rochelle 05 2028CST 0 1 50.00K 0.00K Thunderstorm Wind (50EG)

Two semi trucks were blown over along Interstate 39 and one on Interstate 88. One driver was taken to the hospital.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cook County Hoffman Estates 05 2030CST 2031CST 0 0 0.00K 0.00K Hail (0.88)

Ogle County Rochelle 05 2030CST 0 0 30.00K 0.00K Lightning

The Rochelle police department's antenna was struck by lightning. The lightning travelled down the antenna and damaged a police car and then damaged all three of their dispatch stations.

Cook County Hoffman Estates 05 2035CST 2045CST 0 0 50.00K 0.00K Hail (1.25)

Hail ranging in size from a penny to a half dollar lasted for about 10 minutes causing minor damage to cars and trees.

Winnebago County Rockford 05 2035CST 2036CST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail was reported on the south side of Rockford. Ogle County 2 SSE Creston 05 2035CST 0 0 50.00K 0.00K Thunderstorm Wind (65EG)

Barns were destroyed and a roof was taken off a cattle shelter near Woodlawn and Fairview.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. De Kalb County 1 SW Malta 05 2040CST 0 0 25.00K 0.00K Thunderstorm Wind (65EG)

A barn was destroyed. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. De Kalb County 2 SSE Sycamore 05 2045CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Trees were blown down on Barber Greene Road east of Airport Road.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. De Kalb County Hart 05 2045CST 0 0 1.00K 0.00K Thunderstorm Wind (55EG)

Trees were blown down along Route 72 on the west side of Genoa. Powerlines were also blown down.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph.

76 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northeast De Kalb County De Kalb 05 2050CST 2051CST 0 0 0.00K 0.00K Hail (0.88)

Kane County Maple Park 05 2101CST 0 0 0.00K 0.00K Thunderstorm Wind (61MG)

A wind gust to 70 mph was measured in Maple Park. Note: The measured wind gust of 61 knots is equivalent to 70 mph. Kane County 1 NNW Coleman 05 2113CST 2114CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported at Spring and Wedgewood. Kane County 2 W Dundee 05 2117CST 2118CST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail was reported near Interstate 90 and Randall Road.

Kane County 2 SW Dundee 05 2120CST 2121CST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail was reported one mile east northeast of West Highland Acres.

Kane County Elgin 05 2120CST 2121CST 0 0 0.00K 0.00K Hail (1.00)

Du Page County West Chicago 05 2125CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Tree limbs were blown down along with 75 feet of wooden fence.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Mchenry County 2 NE Silver Lakes 05 2127CST 2128CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported at Dartmouth Drive and Newport Drive.

Mchenry County 3 ENE Silver Lakes 05 2127CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A gust to 60 mph was estimated in Island Lake. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Du Page County 2 WSW Hanover Park 05 2128CST 2129CST 0 0 0.00K 0.00K Hail (1.25)

Hail was reported near Route 20 and Naperville Road. Cook County Streamwood 05 2130CST 2131CST 0 0 0.00K 0.00K Hail (1.00)

77 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northeast Du Page County Hanover Park 05 2130CST 0 0 0.00K 0.00K Hail (0.75)

Cook County 1 ESE Bartlett 05 2130CST 0 0 5.00K 0.00K Lightning

Power lines were blown down onto a house on Cedar Avenue which started a small fire. The fire damage to the house was minimal but the house sustained smoke damage throughout. Cook County Streamwood 05 2132CST 2134CST 0 0 0.00K 0.00K Hail (1.50)

Cook County Des Plaines 05 2135CST 2136CST 0 0 0.00K 0.00K Hail (1.00)

Cook County Rolling Meadows 05 2135CST 2136CST 0 0 0.00K 0.00K Hail (1.00)

Du Page County Itasca 05 2136CST 2137CST 0 0 0.00K 0.00K Hail (1.00)

Cook County Arlington Hgts 05 2138CST 2139CST 0 0 0.00K 0.00K Hail (0.88)

Du Page County Bensenville 05 2140CST 0 0 25.00K 0.00K Thunderstorm Wind (61EG)

Most of the roof of an auto shop on Green Street was blown off.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Du Page County Bensenville 05 2140CST 0 0 50.00K 0.00K Thunderstorm Wind (56EG)

Trees and tree limbs were blown down. Four houses suffered roof damage.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Cook County Streamwood 05 2141CST 2142CST 0 0 0.00K 0.00K Hail (1.00)

Du Page County 1 ESE Bensenville 05 2141CST 0 0 50.00K 0.00K Thunderstorm Wind (61EG)

The roof on two industrial buildings was blown off near County Line Road and Third Avenue. A brick wall of one of the buildings also collapsed. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Cook County (ORD)O'hare Intl Arp 05 2147CST 0 0 0.00K 0.00K Thunderstorm Wind (59MG) Note: The measured wind gust of 59 knots is equivalent to 68 mph.

Cook County Schaumburg 05 2148CST 2149CST 0 0 0.00K 0.00K Hail (0.88)

78 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northeast Cook County Morton Grove 05 2149CST 2150CST 0 0 0.00K 0.00K Hail (1.00)

Cook County Evanston 05 2150CST 2151CST 0 0 0.00K 0.00K Hail (0.88)

Cook County Niles 05 2150CST 2153CST 0 0 0.00K 0.00K Hail (1.75)

Cook County Park Ridge 05 2150CST 2152CST 0 0 0.00K 0.00K Hail (1.25)

Cook County Cumberland 05 2152CST 2156CST 0 0 5.00K 0.00K Hail (2.75)

Baseball size hail was reported near Wolf and Golf Roads. The hail broke numerous windows.

Cook County 2 N Forest Glen 05 2153CST 2154CST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail was reported near Harlem Avenue and Northwest Highway.

Cook County Niles 05 2154CST 2155CST 0 0 0.00K 0.00K Hail (1.00)

Cook County Niles 05 2155CST 2156CST 0 0 0.00K 0.00K Hail (1.00)

Cook County Skokie 05 2155CST 2156CST 0 0 0.00K 0.00K Hail (1.50)

Cook County 1 N Evanston 05 2155CST 2156CST 0 0 0.00K 0.00K Hail (0.75)

Cook County Evanston 05 2157CST 2202CST 0 0 0.00K 0.00K Hail (1.00)

Ogle County 1 S Mt Morris 05 2228CST 2229CST 0 0 0.00K 0.00K Hail (0.88)

Winnebago County 1 E Rockford 05 2330CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Trees were blown down on the east side of Rockford. Note: The estimated wind gust of 55 knots is equivalent to 63 mph.

79 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northeast Ogle County Oregon 05 2335CST 2336CST 0 0 0.00K 0.00K Hail (0.75)

Winnebago County 2 NE Rockford 05 2335CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Trees were reported to be snapped off on the northeast side of Rockford.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Mchenry County Marengo 05 2359CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Numerous trees and tree limbs were blown down. Structural damage was reported to one building.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Mchenry County 4 N Marengo 06 0000CST 0 0 25.00K 0.00K Thunderstorm Wind (61EG)

A barn was blown down. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Mchenry County Huntley 06 0010CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A large tree was uprooted along Church Street. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Mchenry County 1 N Huntley 06 0010CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

A large tree was blown down near Reed Road and Route 47. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Mchenry County Huntley 06 0010CST 0 0 5.00K 0.00K Thunderstorm Wind (51MG)

A gust to 59 mph was measured in Huntley. Tree limbs, utility poles and power lines were blown down.

Note: The measured wind gust of 51 knots is equivalent to 59 mph. Mchenry County Crystal Lake 06 0015CST 0016CST 0 0 0.00K 0.00K Hail (1.00)

Mchenry County Crystal Lake 06 0015CST 0 0 10.00K 0.00K Thunderstorm Wind (61EG)

Numerous trees, tree limbs, utility poles and power lines were blown down in many areas of Crystal Lake.

Strong to severe thunderstorms moved across northern Illinois during the evening hours of April 5th into the early morning hours of April 6th. Large hail and wind damage were reported in many areas. Hail the size of baseballs was reported in Des Plaines. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Kane County Batavia 06 0524CST 0525CST 0 0 0.00K 0.00K Hail (0.75)

Winnebago County Rockford 06 0530CST 0531CST 0 0 0.00K 0.00K Hail (1.00)

80 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northeast Winnebago County 2 ESE East Rockford 06 0530CST 0531CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported near Alpine Road and Harrison Avenue.

Winnebago County Cherry Vly 06 0540CST 0541CST 0 0 0.00K 0.00K Hail (1.00)

Kane County Geneva 06 0623CST 0625CST 0 0 0.00K 0.00K Hail (1.00)

Kane County Batavia 06 0625CST 0628CST 0 0 0.00K 0.00K Hail (1.75)

Kane County 3 ESE Kaneville 06 0625CST 0628CST 0 0 0.00K 0.00K Hail (1.75)

Golf ball size hail was reported near Interstate 88 and Route 47.

Kane County 2 SSE Fox River Estates 06 0630CST 0 0 10.00K 0.00K Lightning

Lightning struck a home on Fox Glen Drive and started a fire in the attic.

Strong to severe thunderstorms moved across parts of northern Illinois during the morning hours of April 6th.

ILZ003-006-012- Du Page - Grundy - Kane - La Salle - Lake - Winnebago 019-021 29 1100CST 1900CST 0 0 68.0K 0.00K Strong Wind

Very strong winds developed across northern Illinois during the late morning of April 26th and continued into the early evening hours. Wind gusts between 45 mph and 55 mph continued for most of the afternoon. Tree limbs and power lines were blown down in many areas.

ILLINOIS, Northwest Whiteside County 2 ESE Albany 04 1625CST 1630CST 0 0 0.00K 0.00K Hail (0.88)

Non-severe hail (<1.0) fell for 5 minutes near Albany, IL between 525 and 530 pm April 4.

Hancock County 1 E Hamilton 04 1708CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell near Hamilton, IL at 608 pm April 4. The hail covered the ground.

Hancock County 1 E Hamilton 04 1708CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated to be 60 mph knocked down some branches near Hamilton, IL at 608 pm April 4.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

81 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northwest Rock Island County Cordova 04 1713CST 0 0 0.00K 0.00K Hail (1.75)

Golf ball sized hail fell in Cordova, IL at 613 pm April 4. Mercer County New Boston 04 1715CST 0 0 0.00K 0.00K Hail (0.88)

Non-severe hail (<1.0) fell in New Boston, IL around 615 pm April 4.

Whiteside County 1 S Morrison 04 1728CST 0 0 0.00K 0.00K Hail (0.88)

Non-severe hail (<1.0) fell in Morrison, IL around 628 pm April 4.

Whiteside County 1 N Albany 04 1730CST 0 0 0.00K 0.00K Hail (0.88)

Non-severe hail (<1.0) fell in Albany, IL around 630 pm April 4.

Whiteside County 1 S Morrison 04 1730CST 0 0 0.00K 0.00K Hail (1.75)

Golf ball sized hail fell in Morrison, IL around 630 pm April 4.

Henderson County Raritan 04 1730CST 0 0 50.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated to be 60 mph blew a machine shed over and damaged several small outbuildings near Raritan, IL around 630 pm April 4. Skies were mostly cloudy on Easter Sunday as an upper level disturbance crossed the region during the afternoon and early evening hours. The system triggered several severe thunderstorms with hail up to the size of a golf ball reported in Cordova, IL, with several reports of 1 inch diameter hail in Muscatine, Scott, and Whiteside counties. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Whiteside County 1 NE Ustick 05 1935CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell about 14 miles south of Mount Carroll, IL around 835 pm April 5.

Whiteside County 1 NE Ustick 05 1935CST 0 0 25.00K 0.00K Thunderstorm Wind (61EG)

Wind gusts estimated to be 70 mph blew some trees and branches down about 14 miles south of Mount Carroll, IL around 835 pm April 5. Some vehicles were damaged by the fallen branches. Also, a power outage was observed.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Carroll County 1 SW Milledgeville 05 1945CST 0 0 100.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated to be 60 mph damaged some outbuildings about 1 mile west of Milledgeville, IL around 845 pm April 5.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Carroll County 1 N Milledgeville 05 1945CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Wind gusts estimated to be 70 mph uprooted some 3 foot diameter trees about 1 mile north of Milledgeville, IL around 845 pm April 5. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

82 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northwest Carroll County 1 S Milledgeville 05 1955CST 0 0 50.00K 0.00K Thunderstorm Wind (61EG)

Wind gusts estimated to be 70 mph blew down several large trees in Milledgeville, IL around 855 pm April 5. The fallen trees knocked down power lines and destroyed the end of a machine shed.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Whiteside County 2 ESE Franklin Corners 05 1955CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Wind gusts estimated to be 70 mph blew down a 2 to 3 foot diameter, 30 to 40 foot tall tree across a road about 7 miles south of Chadwick, IL around 855 pm April 5. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Carroll County 1 S Milledgeville 05 1958CST 0 0 750.00K 0.00K Thunderstorm Wind (61EG) Wind gusts estimated to be 70 mph caused a west-facing wall of a church to collapse in Milledgeville, IL around 858 pm April 5. In addition, several 3 foot diameter trees were blown down. Numerous power lines were also knocked down resulting in a power outage to much of the town. Most of the damage was across the northwest part of town and extended about 0.5 miles to the north. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Carroll County Lanark 05 1959CST 0 0 50.00K 0.00K Lightning

A house caught on fire due to a lightning strike in Lanark, IL around 859 pm April 5.

Jo Daviess County 1 W Galena 05 2208CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell in Galena, IL at 1108 pm April 5. Jo Daviess County 1 W Galena 05 2208CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated to be 60 mph were observed in Galena, IL around 1108 pm April 5.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jo Daviess County 1 NE East Dubuque 05 2210CST 0 0 0.00K 0.00K Hail (1.25)

Half dollar sized hail fell about 1 mile east of East Dubuque, IL around 1110 pm April 5.

Jo Daviess County 2 WNW Galena 05 2210CST 0 0 250.00K 0.00K Thunderstorm Wind (61EG)

Wind gusts estimated to be 70 mph ripped the roof off of Tri State Screen Printing and Embroidery located at 11530 Technical Drive about 3 miles west northwest of Galena, IL around 1110 pm April 5.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Jo Daviess County 1 NE East Dubuque 05 2210CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

Wind gusts estimated to be 75 mph were observed about 1 mile east of East Dubuque, IL around 1110 pm April 5.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Jo Daviess County 2 NNE Apple Canyon Lake 05 2225CST 0 0 500.00K 0.00K Thunderstorm Wind (65EG) Woodbine

83 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northwest

More than half the homes in Woodbine, IL suffered some degree of damage as severe storms moved through the area around 1125 pm April 5. Most of the damage was from downed trees and limbs. Two parked semi-tractor trailers were overturned. Some utility poles snapped near the ground. A garden shed was blown over and other outbuildings were damaged. Shingles, sheets of tin roofing, and tree debris littered the streets. Several homes north of Woodbine and near Apple Canyon Lake sustained damage from fallen trees. This report was from the Freeport Journal Standard.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Stephenson County 3 W Freeport 05 2255CST 0 0 100.00K 0.00K Thunderstorm Wind (61EG)

Wind gusts estimated to be 70 mph snapped some trees and utility poles in half and ripped some siding off of some houses along Pearl City Rd about 0.25 miles west of Highland Community College on the west side of Freeport, IL around 1155 pm April 5. This report was relayed by Stephenson County SKYNET. In addition, a 40 foot tall pine tree on the 1200 block of Lincoln Boulevard fell onto a house. Several Freeport streets were littered with downed trees, especially hard hit were South High Ave, Lemon Ave, Nursery Ave, Bauch Ave, West Pleasant St, and South Highland Ave. The Freeport Journal Standard also contributed to this report. April 5th started off with sunny skies which helped to warm things up. The sun in addition to a developing low pressure system in Kansas pushed a warm front northward into Iowa. The front stalled out along and south of Highway 34, leaving areas north of the boundary in the 60s, while those to the south rose into the 70s. The sunshine coupled with increasing moisture levels resulted in thunderstorm development during the afternoon and evening. Some of the thunderstorms were severe, producing large hail and damaging winds. In addition, frequent lightning also accompanied the storms, with one lightning strike damaging a house. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

Rock Island County Hillsdale 06 0444CST 0 0 0.00K 0.00K Hail (1.50)

Quarter sized to just under golf ball sized hail fell about 6 miles west southwest of Erie, IL at 544 am April 6.

Whiteside County 1 N Erie 06 0445CST 0 0 0.00K 0.00K Hail (0.75)

Non-severe hail (<1.0) fell in Erie, IL around 545 am April 6.

A warm front extending from northeast Kansas along the Missouri and Iowa border to northern Indiana lifted to the north on April 6th resulting in the development of some showers and thunderstorms. Some storms were severe, producing large hail and damaging winds. Henry County 1 NW Galva 24 1817CST 1917CST 0 0 0.00K 0.00K Flash Flood

Heavy rains of 1 to 4 inches resulted in some flash flooding of some streets in Galva, IL during the evening of April 24. The flood waters were 6 inches deep. A strong low pressure system moved from Oklahoma to near Chicago April 24th and 25th, while a warm front stretched across areas south of the Interstate 80 corridor. Heavy rain-producing showers and thunderstorms were common across this area, where rainfall totals of 1 to 4 inches were common. The torrential rains lead to some flash flooding in Galva, IL during the evening hours of April 24th.

Warren County 1 NW Monmouth 30 1602CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated to be 60 mph were observed about 1 mile north of Monmouth, IL at 502 pm April 30.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Warren County 1 NW Monmouth 30 1605CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Wind gusts estimated to be 65 mph were observed about 1 mile north of Monmouth, IL at 505 pm April 30. Heavy rain and pea sized hail was also noted. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

84 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Northwest Warren County 1 NNE Shaw 30 1605CST 0 0 25.00K 0.00K Thunderstorm Wind (61EG)

Wind gusts estimated to be 70 mph destroyed a well-built 60'x60'x35' barn pulling its cement blocks off of the foundation at 2452 1st Ave about 3 miles west of Alexis, IL at 505 pm April 30. In addition, some apple trees were damaged as well as the porch of the residence. This report was relayed by spotter ME23.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Warren County 1 NNW Shaw 30 1605CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Wind gusts estimated to be 70 mph damage or uprooted several healthy trees including one 40 inches in diameter about 4 miles west of Alexis, IL at 505 pm April 30. In addition, a piece of wood was driven into the front yard.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Warren County 1 E Roseville 30 1608CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)

Wind gusts estimated to be 65 mph blew down several power poles in Roseville, IL at 508 pm April 30.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Warren County 1 W Monmouth 30 1608CST 0 0 25.00K 0.00K Thunderstorm Wind (61EG)

Wind gusts estimated to be 70 mph blew down several power poles and ripped the roof off of a building on the north side of Monmouth, IL at 508 pm April 30. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Henry County 2 NNE Atkinson 30 1657CST 1702CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated to be 60 mph were observed for 5 minutes about 2 miles north northeast of Atkinson, IL between 557 pm and 602 pm April 30. Heavy rain was also observed. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Henry County 2 NNE Atkinson 30 1658CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated to be 60 mph blew down some branches about 2 miles north northeast of Atkinson, IL at 558 pm April 30. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Putnam County 1 E Mc Nabb 30 1905CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated to be 60 mph were observed in McNabb, IL at 805 pm April 30.

Showers and thunderstorms moved northeastward across the area April 30th, as a cold front pushed into central Iowa. Some of the storms surpassed severe thresholds, producing damaging winds and large hail. Torrential downpours of rain were also common as the storms moved through, dumping a quick half inch to an inch and a quarter of rain across the area. Daytime high temperatures ranged from the lower 70s near Independence to around 80 in Freeport, the Quad Cities, and Muscatine. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

ILLINOIS, South Alexander County 1 E Cairo 01 0000CST 07 1600CST 0 0 0.00K 0.00K Flood

Minor flooding of the Ohio River occurred in the vicinity of Cairo. Low-lying river access roads, farm fields, and state parkland were under water.

85 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, South Alexander County Thebes 01 0000CST 1 WNW Thebes Jct 13 0700CST 0 0 0.00K 0.00K Flood

Minor flooding of the Mississippi River inundated some low-lying fields and river access points around Thebes.

Jackson County 3 W Murphysboro 01 0000CST 2 W Mt Carbon 06 0800CST 0 0 0.00K 0.00K Flood

Minor flooding of the Big Muddy River occurred near Murphysboro. Low-lying fields and some parkland were flooded.

Pulaski County 3 S New Grand Chain 01 0000CST 06 1500CST 0 0 0.00K 0.00K Flood

Minor flooding of the Ohio River occurred around Grand Chain. Some low-lying fields and river access points were under water. Heavy rainfall in mid-March caused a few rivers to rise above flood stage. The rivers crested by the end of March, then fell below flood stage by mid-April.

ILZ075-080-084> Alexander - Franklin - Jackson - Jefferson - Perry - Saline - Union - Williamson 086-088-092 06 1100CST 1800CST 0 0 17.0K 0.00K Strong Wind

Strong south winds occurred between a low pressure center over Kansas and high pressure off the southeast United States coast. Peak wind gusts ranged from 40 to 45 mph generally along and west of Interstate 57, which runs from Mount Vernon south to Cairo. In northern Williamson County, the metal roof of a lumber company in Johnston City collapsed. The metal roof was over a building that was of a pole-barn type of construction. The east side wall nearly came down. The roof was new, installed to replace the one blown off in the May 8 windstorm of 2009. Some power lines were blown down in the area.

Jackson County 2 WSW Crain 07 1528CST 1531CST 1.88 50 0 0 5.00K 0.00K Tornado (EF0)

Half of the metal roof of a small farm shed was blown off. A large tree and less than a dozen small trees were blown down. A tree and power lines were down on Highway 3. A few signs were blown down. Less than ten percent of the metal roofing and siding was blown off a house. Some wheat less than a foot tall was blown down. A trained spotter and a local resident took photos, but the tornado was very difficult to identify through the rain. Peak winds in this tornado were estimated near 85 mph.

Wabash County Mt Carmel 07 1830CST 1900CST 0 0 0.00K 0.00K Heavy Rain

Significant ponding of water was reported on secondary streets.

A cold front trailed south-southwestward from a surface low pressure center over west central Illinois through southeast Missouri. This cold front provided the low level lift for short lines of thunderstorms to develop during the late afternoon. Some breaks in the clouds allowed sunshine to destabilize the atmosphere, but mixed layer capes remained at or below 1000 j/kg due to modest lapse rates and low-level moisture. Surface dew points around 60 degrees pooled along the front. Wind profiles were unidirectional and generally parallel to the front. As a result, the storms were mainly organized into short linear structures with some bowing segments. An isolated non-supercell tornado occurred west of Murphysboro.

ILZ075>078-080> Alexander - Edwards - Franklin - Gallatin - Hamilton - Hardin - Jackson - Jefferson - Johnson - Massac - 094 Perry - Pope - Pulaski - Saline - Union - Wabash - Wayne - White - Williamson

09 0300CST 0700CST 0 0 0.00K Frost/Freeze

86 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, South

Surface high pressure brought clear skies and light winds, setting the stage for frost formation. Temperatures bottomed out in the mid to upper 30's in most places. The cold spot was Mount Vernon, where the low was 32 degrees. The strawberry crop was the most vulnerable to damage, since most other vegetation was still dormant.

Pulaski County 1 E Grand Chain 24 1231CST 0 0 0.00K 0.00K Funnel Cloud

Pulaski County Karnak 24 1241CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A trained spotter estimated winds gusted to 60 mph. A few small tree limbs were blown down.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Pulaski County Karnak 24 1242CST 0 0 0.00K 0.00K Hail (1.00)

Johnson County Vienna 24 1245CST 0 0 20.00K 0.00K Thunderstorm Wind (52EG) Numerous trees and power lines were blown down from Vienna south for a couple of miles.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Saline County 1 S Eldorado 24 1300CST 2 WSW Cottagegrove 1505CST 0 0 0.00K 0.00K Heavy Rain

Standing water was over State Route 142 at a couple of locations just south of Eldorado. There was a major vehicle accident at one of the locations. Several roadways in eastern Saline County were under water.

Jefferson County Mt Vernon 24 1745CST 1750CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Several trees were down on a golf course just east of Mount Vernon. Large tree limbs were down in the city of Mount Vernon. Power outages were reported around the area. A well-organized upper level low moved east from the central Plains into the Mid Missouri Valley during the day. Very strong winds aloft accompanied this system. A streak of very strong mid level winds punched northeast from the Arklatex region into the Lower Ohio Valley during the afternoon. A low level jet from 50 to 60 knots over the Lower Mississippi Valley nosed into the Lower Ohio Valley. At the surface, a low pressure center tracked from north central Arkansas to near St. Louis by late afternoon. Though surface dew points climbed into the lower to mid 60's, extensive cloudcover along and ahead of a warm front limited instability. The instability was generally weak, characterized by cape values below 1000 j/kg. A short, bowing line segment was responsible for most of the severe weather reports. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Alexander County Thebes 30 0800CST 2359CST 0 0 0.00K 0.00K Flood

Minor flooding occurred on the Mississippi River near Thebes. Some low-lying fields and river access points were under water.

Another round of heavy rain in the upper Mississippi River Valley caused the Mississippi River to rise above flood stage by the end of the month. Perry County Du Quoin 30 2200CST 0 0 6.00K 0.00K Thunderstorm Wind (50EG)

Large tree limbs were down on power lines. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Perry County Du Quoin 30 2204CST 0 0 0.00K 0.00K Hail (0.88)

87 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, South Johnson County Buncombe 30 2213CST 0 0 0.00K 0.00K Hail (1.00)

Franklin County Zeigler 30 2252CST 2350CST 0 0 0.00K 0.00K Heavy Rain

Street flooding was reported in Zeigler. Thunderstorms developed ahead of an eastward moving cold front over the Ozarks. Strengthening mid-level winds ahead of a strong shortwave trough over the central Plains aided storm development. Moderate instability combined with strong effective bulk shear around 50 knots provided very favorable conditions for supercells as the storms spread northeastward.

ILLINOIS, Southwest Adams County Payson 04 1915CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds blew down several trees and a power pole was snapped off.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Greene County White Hall 04 2106CST Roodhouse 2110CST 0 0 0.00K 0.00K Hail (1.00)

Macoupin County 3 WSW Standard City 04 2145CST 0 0 0.00K 0.00K Hail (1.75)

A strong cold front moved through the region, triggering showers and thunderstorms. Several storms became severe producing large hail and a couple reports of damaging winds.

Macoupin County 1 E White City 05 1423CST Mt Olive 1426CST 0 0 0.00K 0.00K Hail (1.75)

Montgomery County 2 W Hillsboro 05 1514CST 1515CST 0.18 10 0 0 0.00K 0.00K Tornado (EF0)

A tornado briefly touched down in a field. No damage or injuries were reported.

Storms fired north of a warm front during the afternoon hours of April 5th, some of which became severe.

Bond County 3 SSW Durley 07 1325CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds blew down a power pole and a couple of large trees on the southeast side of Greenville. One tree fell onto an unoccupied car, causing extensive damage. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Randolph County 2 ENE Menard 07 1418CST 0 0 0.00K 0.00K Hail (1.00)

Marion County 4 SE Branch Jct 07 1539CST 1 SW Centralia 2130CST 0 0 0.00K 0.00K Flash Flood

Between 2 and 5 inches of rain fell in a two hour period on already saturated soils causing flash flooding. Numerous roads were flooded including Illinois Route 37 near Kinmundy. Several cars were swept downstream in a couple of spots in the northern half of the county, but the occupants were rescued with no injuries reported. Also, several basements in Kinmundy and Sandoval were flooded.

88 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ILLINOIS, Southwest Fayette County 3 NE St James 07 1648CST 3 ENE Loogootee 2130CST 0 0 0.00K 0.00K Flash Flood

Between 3 and 5 inches of rain fell in a two hour period onto already saturated soils causing flash flooding. Numerous roads were flooded over far southeastern Fayette County, including two feet of water over Illinois Route 37 in Farina.

Storms developed along a strong cold front. Some of the storms became severe producing large hail, isolated wind damage and flash flooding. Macoupin County 2 S Brighton 24 1605CST 0 0 0.00K 0.00K Hail (1.50)

Madison County 2 WNW Wood River 24 1605CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

An eight inch diameter tree was blown down a the intersection of Illinois Routes 143 and 3.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Madison County Wood River 24 1610CST 0 0 0.00K 0.00K Hail (1.00)

A strong storm system moved through the region, triggering showers and thunderstorms. Numerous reports of large hail, damaging winds, tornadoes and flash flooding were reported with this system.

Monroe County 2 SW Merrimac 30 1950CST 2 NE Warnock 1957CST 7.24 350 0 0 0.00K 0.00K Tornado (EF2)

A tornado touched down about a mile and a quarter south southeast of Kimmswick on the Illinois side of the Mississippi River. It travelled to the northeast for about 7 miles before lifting and dissipating. Several large trees were blown down just west the levee in a two and a half mile area along the path. The greatest degree of damage occurred on County Road 200E just south of the intersection with Merrimac Road. The roof of a two story home was approximately 80 percent removed. A second roof to a porch was totally removed and blown to the north northeast. Window and siding damage was also observed. Several trees and large limbs at the back of this home were severely damaged and helped to show a large convergent damage pattern. Two other homes west of the first home sustained varying degrees of damage. Roof, window and siding damage was common on these two homes. A large hanger at Jacobs Field, northeast of the home damage, sustained varying degrees of damage. Large sections of the hanger's metal roof were blown a quarter to half a mile to the north northeast. The tornado continued to damage small to medium sized machine sheds and caused minor damage to a few homes along the rest of its path. No injuries were reported.

Monroe County 2 NW Foster Pond 30 1957CST 1958CST 0.11 50 0 0 0.00K 0.00K Tornado (EF0)

A tornado briefly touched down on Deer Hill Road, about 1.5 miles southwest of the intersection of Deer Hill Road and County Road HH. A few large trees and several large tree limbs were blown down. One home in the path of this tornado sustained shingle damage. Storms developed ahead of a strong cold front during the afternoon and evening hours. Numerous reports of severe weather were received including large hail, damaging winds and tornadoes.

INDIANA, Central Hendricks County 1 SE Plainfield 05 1600EST 1602EST 0 0 Hail (0.88)

Pea to nickel sized hail was observed by the public in this location.

Hendricks County 1 SE Danville 05 1624EST 1626EST 0 0 Hail (1.00)

89 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

INDIANA, Central Hendricks County 1 WSW Avon 05 1625EST 1627EST 0 0 Hail (2.00)

Hendricks County 2 E Cartersburg 05 1626EST 1628EST 0 0 Hail (1.00)

Hendricks County 1 N Avon 05 1631EST 1641EST 0 0 Hail (0.75)

The hail stones were mostly half inch sized, with several three quarter inch sized stones as well. The event started at 531 PM EDT and lasted 10 minutes. Hendricks County 2 SW Westwood 05 1632EST 1634EST 0 0 Hail (0.75)

Hendricks County 1 ESE Avon 05 1634EST 1637EST 0 0 Hail (0.88)

Nickel sized hail was observed in this location and lasted for 3 to 4 minutes.

Vigo County 1 E Terre Haute 05 1636EST 1701EST 0 0 0.50K 0.50K Heavy Rain

An estimated two inches of rain fell in 20 to 30 minutes. Flooding was reported in many locations across Vigo County and water levels were up to street curbs and in fields. Vigo County 1 E Terre Haute 05 1637EST 1639EST 0 0 Hail (0.75)

Hendricks County 2 E Avon 05 1638EST 1640EST 0 0 Hail (1.00)

Vigo County 2 W Woodridge 05 1640EST 1642EST 0 0 Hail (1.00)

Hancock County 1 NW Mc Cordsville 05 1642EST 1644EST 0 0 0.00K 0.00K Hail (0.75)

Jackson County 1 SE Seymour 05 1655EST 0 0 Thunderstorm Wind (59MG) Note: The measured wind gust of 59 knots is equivalent to 68 mph.

Vigo County 1 E Terre Haute 05 1700EST 1702EST 0 0 Hail (1.00)

Monroe County 3 E Hindustan 05 1707EST 1709EST 0 0 Hail (1.00)

90 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

INDIANA, Central Clay County 2 W Bowling Green 05 1713EST 1715EST 0 0 Hail (1.25)

Brown County 1 N Cordry Lake 05 1720EST 1722EST 0 0 Hail (1.00)

Owen County 3 W Romona 05 1730EST 1745EST 0 0 Hail (2.00)

Hail fell in this location for approximately 15 minutes, from 6:30 to 6:45 PM EDT. The average hail stone size was 0.75 inches with several 2 inch hail stones as well. Owen County 2 S Carp 05 1736EST 1738EST 0 0 Hail (1.75)

Quarter to golf ball sized hail was reported in this location.

Owen County 1 S Carp 05 1740EST 1742EST 0 0 Hail (0.75)

Owen County Gosport 05 1745EST 1747EST 0 0 0.50K Hail (1.75)

Hail to the size of golf balls broke the windshield of a spotter's car.

Owen County Gosport 05 1745EST 1747EST 0 0 Hail (2.25)

Owen County Gosport 05 1745EST 1747EST 0 0 Hail (3.25)

WRTV forwarded a report of 3.25 inch hail in Gosport.

WRTV forwarded this photo of a measured 3.25 inch hail stone from Gosport.

91 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

INDIANA, Central Johnson County 1 E Greenwood 05 1749EST 1751EST 0 0 Hail (0.75)

Event occurred 1 mile west of the Greenwood airport. Morgan County 4 S Paragon 05 1752EST 1754EST 0 0 Hail (2.00)

Golf ball to egg sized hail was observed at this location. Morgan County 1 SE Paragon 05 1755EST 1757EST 0 0 Hail (2.50)

Large hail fell in the town of Paragon. The photographer is unknown.

Morgan County 2 SE Martinsville 05 1802EST 1804EST 0 0 Hail (1.00)

Johnson County Edinburg 05 1838EST 1840EST 0 0 Hail (1.00)

Hail began as dime sized and increased to nickel to quarter sized.

Bartholomew County 1 E St Louis Crossing 05 1844EST 1846EST 0 0 Hail (1.75)

Johnson County Edinburg 05 1844EST 1846EST 0 0 Hail (1.75)

Johnson County Edinburg 05 1845EST 1847EST 0 0 Hail (1.75)

92 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

INDIANA, Central Bartholomew County Hope 05 1847EST 1849EST 0 0 Hail (1.75)

Multiple sized hail stones were observed in the town of Hope. The photographer is unknown.

Bartholomew County Hope 05 1850EST 1852EST 0 0 0.50K Hail (1.50)

One and a half inch sized hail broke out a back windshield in this location.

Shelby County 1 SSW Flat Rock 05 1855EST 1858EST 0 0 Hail (1.75)

Golf ball sized hail was observed at the intersection of 1000 North and 350 East County Roads.

Bartholomew County Hope 05 1910EST 1912EST 0 0 Hail (1.75)

Golf ball sized hail was observed at a the home of a 911 dispatcher in Bartholomew County.

93 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

INDIANA, Central Decatur County 1 N Greensburg 05 1920EST 1922EST 0 0 Hail (0.75)

Thunderstorms developed along a warm front across Central Indiana during the afternoon of April 5, 2010. These storms brought large hail and damaging winds to parts of the southern half of Central Indiana into the early evening. Most of the severe weather that occurred was large hail, with a few hailstones reaching over the two inch mark.

Howard County Kokomo 07 1749EST 1751EST 0 0 Hail (0.88)

This event occurred at the intersection of Dixon Road and Defenbaugh Street in southwest Kokomo.

Vigo County 1 ENE Prairie Creek 07 1800EST 1802EST 0 0 Hail (0.75)

This event occurred at the intersection of State Road 246 and State Road 63.

Clay County 1 NE Clay City 07 1910EST 1912EST 0 0 Hail (1.00)

A cold front came sweeping across Central Indiana during the late afternoon and evening hours on April 7th. This frontal boundary generated a line of thunderstorms that produced a singular, severe hail report. A few other hail reports came in below severe limits.

INDIANA, Northeast St. Joseph County 1 N South Bend 06 0924EST 0925EST 0 0 0.00K 0.00K Hail (0.75)

A trained spotter reported hail ranging from pea to penny size.

The same boundary that allowed for strong to severe storms on April 5th in far southern lower Michigan, became stationary across the Indiana/Michigan/Ohio state line. Upper level energy moved along the front, causing showers and thunderstorms to develop. The majority of the severe weather remained outside the northern Indiana forecast area. However a few storms did produce hail ranging from pea to quarter size.

Allen County 1 SW Meadowbrook 07 1900EST 1902EST 0 0 25.00K 0.00K Thunderstorm Wind (52EG)

Emergency management officials reported that a total of 9 mobile homes suffered varying degrees of damage. The majority of the damage was confined to skirting and support blocks. The southeast facing end of a mobile home was shifted off its blocks, but the home suffered only minor damage beyond that. Trees in the park and outside it were not damaged. Damage is estimated at $25,000. A cold front moved slowly through the area during the late afternoon and early evening hours. While overall instability was modest, strong wind fields were in place. Earlier convection had resulted in no severe weather during peak heating. As evening approached, an area of storms developed and intensified as it moved across Allen county. Isolated wind damage was reported in a mobile home park in New Haven. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

INDIANA, Northwest Lake County 1 N Highland 06 0747CST 0748CST 0 0 0.00K 0.00K Hail (0.75)

Strong storms moved across parts of northwest Indiana during the morning hours of April 6th.

94 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

INDIANA, Northwest Porter County Portage 07 1434CST 1435CST 0 0 0.00K 0.00K Hail (0.75)

Strong storms moved across parts of northwest Indiana during the afternoon hours of April 7th.

INDIANA, South Central Clark County Solon 05 1652EST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was covering the ground. Afternoon instability combined with a shortwave crossing Indiana and Kentucky to set off thunderstorms. These storms dropped hail of up to golf ball size across Indiana and Kentucky.

Perry County 1 NNE Cannelton 07 2131EST 0 0 Thunderstorm Wind (52EG)

Several trees were reported down across the county. Two trees fell across power lines between Cannelton and Tell City. Another tree fell across a road just north of Cannelton. A line of thunderstorms ahead of a cold front swept through Indiana and Kentucky. A bowing segment within the line downed multiple trees in Perry County in Indiana. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

INDIANA, Southeast Wayne County 1 S Richmond 05 1840EST 1844EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Trees were down over a road due to thunderstorm winds. Supercells developed along a warm front initially affecting northern Kentucky during the late afternoon hours. Activity increased and developed into multicell clusters as it lifted northeast across the area. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Wayne County 3 N Richmond 07 2110EST 2115EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Trees were reported down in multiple areas north of Richmond.

Isolated severe weather occurred late in the day on April 7th as a complex of storms moved into the area. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. INDIANA, Southwest Gibson County 2 W Hazleton 01 0000CST 04 1700CST 0 0 0.00K 0.00K Flood

Minor flooding of the White River occurred. Some low oil fields were flooded. A few low rural roads were flooded. High water isolated Pottstown, a river cabin community. Pike County 2 NE Petersburg 01 0000EST 03 0700EST 0 0 0.00K 0.00K Flood

Minor flooding of the White River occurred. Flooding affected low agricultural lands and low oil fields.

Heavy rainfall in mid and late March caused the White River to rise above flood stage. The river crested by the end of March, then fell below flood stage in early April.

Pike County Petersburg 07 1800EST 1830EST 0 0 0.00K 0.00K Heavy Rain

A trained spotter measured almost one-half inch of rain in 30 minutes.

95 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

INDIANA, Southwest Posey County Farmersville 07 1836CST 0 0 50.00K 0.00K Thunderstorm Wind (62MG)

The roof was blown off the gym at the Farmersville elementary school. The roof was blown about 100 yards away. Water damage occurred due to heavy rain that poured into the building. An electronic weather station at the school measured a wind gust to 71 mph. A cold front trailed south-southwestward from a surface low pressure center over west central Illinois through southeast Missouri. This cold front provided the low level lift for short lines of thunderstorms to develop during the late afternoon. Some breaks in the clouds allowed sunshine to destabilize the atmosphere, but mixed layer capes remained at or below 1000 j/kg due to modest lapse rates and low-level moisture. Surface dew points around 60 degrees pooled along the front. Wind profiles were unidirectional and generally parallel to the front. As a result, the storms were mainly organized into short linear structures with some bowing segments that produced damaging wind. Note: The measured wind gust of 62 knots is equivalent to 71 mph.

INZ081-085>088 Gibson - Pike - Posey - Spencer - Vanderburgh - Warrick 09 0300CST 0700CST 0 0 0.00K Frost/Freeze

Surface high pressure brought clear skies and light winds, setting the stage for frost formation. Temperatures bottomed out in the mid to upper 30's in most places. The strawberry crop was the most vulnerable to damage, since most other vegetation was still dormant.

IOWA, Central Emmet County 6 W Huntington 01 0000CST 14 0300CST 0 0 50.00K 0.00K Flood

Humboldt County 1 S Humboldt Muni Arpt 01 0000CST 1 NE Dakota City 08 0640CST 0 0 50.00K 0.00K Flood

Kossuth County 4 ENE Burt 01 0000CST 02 0900CST 0 0 75.00K 0.00K Flood

Palo Alto County 1 NE Graettinger 01 0000CST 3 N Osgood 02 2024CST 0 0 50.00K 0.00K Flood

Wapello County 2 NNW Chillicothe 01 0000CST Eddyville 23 1930CST 0 0 0.00K 0.00K Flood

Webster County 7 ESE Lehigh 01 0000CST 4 NE Dayton 0652CST 0 0 50.00K 0.00K Flood

Flooding from rain and snowmelt in March continued into April. Flooding was the most extensive over the north half of Iowa, particularly along the Des Moines River Basin. Much of the flooding was in agricultural areas and did not have major impacts. Some areas were affected with roads closed yet into April. The rivers had crested during March, so overall flooding was minor to moderate. Cass County Atlantic Arpt 02 0954CST 0 0 5.00K 0.00K Thunderstorm Wind (55MG) Note: The measured wind gust of 55 knots is equivalent to 63 mph.

Taylor County Bedford 02 1001CST 0 0 3.00K 0.00K Thunderstorm Wind (61MG) Note: The measured wind gust of 61 knots is equivalent to 70 mph.

96 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Adair County Fontanelle 02 1004CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Decatur County 1 WNW Leon 02 1012CST 0 0 1.00K 0.00K Thunderstorm Wind (59MG) Note: The measured wind gust of 59 knots is equivalent to 68 mph.

Decatur County 3 NE Van Wert 02 1014CST 0 0 25.00K 0.00K Thunderstorm Wind (65EG)

A grain bin was blown across the road and large tree branches were downed. Siding was ripped off of a house.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Warren County 4 WSW Indianola 02 1020CST 0 0 5.00K 0.00K Thunderstorm Wind (60EG)

Heavy rain and small hail was also reported. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Warren County 1 S Indianola Arpt 02 1028CST 0 0 0.00K 0.00K Hail (0.88)

Warren County 1 S Lacona 02 1037CST 0 0 5.00K 0.00K Thunderstorm Wind (60EG)

Wind speed estimated by Fire Department. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Warren County 1 S Lacona 02 1037CST 0 0 10.00K 0.00K Thunderstorm Wind (57EG)

North side of town reported small trees and a few street signs down. One outbuilding was damaged.

Note: The estimated wind gust of 57 knots is equivalent to 66 mph. Marshall County State Center 02 1050CST 0 0 0.00K 0.00K Hail (0.88)

A few stones of nickel size; pea size hail nearly covered the ground.

Marion County Columbia 02 1050CST 0 0 10.00K 0.00K Thunderstorm Wind (60EG)

Part of a roof was blown off of a coop building in Columbia.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Marion County Columbia 02 1050CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Grain bins at the coop were damaged by high winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Marion County Knoxville 02 1053CST 0 0 2.00K 0.00K Thunderstorm Wind (55MG) Note: The measured wind gust of 55 knots is equivalent to 63 mph.

Marshall County State Center 02 1055CST 0 0 0.00K 0.00K Hail (0.88)

97 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Mahaska County 2 NE Evans 02 1105CST 0 0 50.00K 0.00K Thunderstorm Wind (57EG)

Barn roof blown off and outbuilding damage. Note: The estimated wind gust of 57 knots is equivalent to 66 mph. Black Hawk County 1 N (ALO)Waterloo Muni A 02 1150CST 0 0 0.00K 0.00K Thunderstorm Wind (51MG) Note: The measured wind gust of 51 knots is equivalent to 59 mph.

Hamilton County Williams 02 1150CST 0 0 5.00K 0.00K Thunderstorm Wind (66MG)

The seasons first severe weather occurred around mid day on the 2nd. Strong and deep southerly flow was in place across the central U.S. Low pressure at the surface moved from southwest Kansas on the evening of the 1st, to eastern North Dakota by early afternoon of the 2nd. A cold front extending south from the low moved into Iowa on the morning of the 2nd. A low level jet of 40 to 50 kts was in place during the morning of the 2nd. The upper level jet was around 100 kts at the time. The overall sounding was nearly unidirectional. There was limited CAPE available, around 500 J/kg of elevated CAPE, but sufficient dynamics were in place. The 0-1 km shear was between 30 and 40 kts. Thunderstorms developed along the cold front and moved rapidly northeast at 70 to 80 MPH across southern Iowa. The storms produced sub-severe hail and winds of 60 to 70 MPH as they passed. High winds blew a grain bin across a street, downed large tree branches, and tore siding off of a house in Decatur County. Street signs were damaged in Lacona in Warren County, while part of a roof was torn off in Marion County at Columbia. The storms weakened during the early afternoon hours, but still produced winds as the moved into central and northeast Iowa. A 59 MPH wind gust was recorded at the Waterloo Airport. Overall damage was limited, in part due to the fact that the trees had not leafed out yet. Note: The measured wind gust of 66 knots is equivalent to 76 mph.

Wapello County 2 WNW Dahlonega 04 1615CST 0 0 0.00K 0.00K Hail (0.88)

Wapello County 3 SSE Rutledge 04 1742CST 0 0 0.00K 0.00K Hail (0.88)

The coverage of hail was minimal. A weak cold front dropped southeast across the state during the afternoon of the 4th. Conditions were marginal with surface dew point values just above 50 F, and surface temperatures around 70. The southeast part of the CWA was in a tight CAPE gradient with 2000 J/kg CAPE just southwest of the area. There was little low level shear, however 0-6km shear was in the 60 to 70 kt range. CAPE in the -10 to -30 C part of the atmosphere was around 100 J/kg. A line of thunderstorms formed near the cold front. Most of the stronger storms remained to the southeast of the CWA. One of the stronger storms passed through Wapello County, dropping nickel size hail north of Ottumwa. A secondary line of storms fired up behind the first line. These storms dropped nickel size hail south and southwest of Ottumwa.

Marion County 2 W Donnelly 05 1137CST 0 0 1.00K 0.00K Hail (1.00)

Marion County Knoxville 05 1139CST 0 0 3.00K 0.00K Hail (1.00)

Warren County 1 S Indianola 05 1204CST 0 0 0.00K 0.00K Hail (0.88)

Dallas County 1 E De Soto 05 1213CST 0 0 0.00K 0.00K Hail (0.88)

Dallas County 1 E Van Meter 05 1215CST 0 0 2.00K 0.00K Hail (1.00)

Hail was reported at the Van Meter fire station. Polk County 1 NE Johnston 05 1215CST 0 0 0.00K 0.00K Hail (0.88)

98 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Polk County 1 NW Clover Hills 05 1221CST 0 0 0.00K 0.00K Hail (0.75)

Ringgold County 1 NW Knowlton 05 1221CST 0 0 1.00K 0.00K Hail (1.00)

Polk County 1 NE Dodge Fld Arpt 05 1231CST 0 0 3.00K 0.00K Hail (1.00)

Nickel to quarter size hail was covering the ground. Ringgold County 1 SW Delphos 05 1235CST 0 0 1.00K 0.00K Hail (1.00)

Ringgold County 1 NW Knowlton 05 1308CST 0 0 1.00K 0.00K Hail (1.00)

Ringgold County 3 NNW Ellston 05 1328CST 0 0 5.00K 0.00K Hail (1.50)

Clarke County 1 WNW Hopeville 05 1336CST 0 0 5.00K 0.00K Hail (1.75)

Hail reported by the Sheriff's deputy in the small town of Hopeville.

Clarke County 4 NNE Hopeville 05 1344CST 0 0 5.00K 0.00K Hail (1.75)

Clarke County 1 ESE Murray 05 1345CST 0 0 1.00K 0.00K Hail (1.00)

Warren County 1 S Lacona 05 1430CST 0 0 1.00K 0.00K Hail (1.00)

Marion County 3 N Newbern 05 1437CST 0 0 5.00K 0.00K Hail (1.75)

The ground was white with hail. Marion County 1 WNW Melcher 05 1440CST 0 0 50.00K 0.00K Hail (1.50)

Marion County 2 ESE Nepas 05 1442CST 0 0 1.00K 0.00K Hail (1.00)

Marion County 2 WSW Knoxville Arpt 05 1450CST 0 0 3.00K 0.00K Hail (1.00)

Marion County 1 W Flagler 05 1451CST 0 0 50.00K 0.00K Hail (1.50)

Marion County Knoxville 05 1452CST 0 0 10.00K 0.00K Hail (1.75)

Marion County Knoxville 05 1454CST 0 0 10.00K 0.00K Hail (1.75)

99 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Marion County 2 N Knoxville 05 1455CST 0 0 5.00K 0.00K Hail (1.50)

Marion County 2 NE Knoxville 05 1455CST 0 0 3.00K 0.00K Hail (1.25)

Marion County 1 SE Pella 05 1504CST 0 0 1.00K 0.00K Hail (1.00)

Marion County 1 SE Pella 05 1510CST 0 0 5.00K 0.00K Hail (1.75)

Marion County 1 W Pella 05 1511CST 0 0 1.00K 0.00K Hail (1.00)

Marion County 4 SE Pella 05 1512CST 0 0 5.00K 0.00K Hail (1.75)

Poweshiek County 3 E Deep River 05 1546CST 0 0 5.00K 0.00K Hail (1.25)

The hail covered the ground. Poweshiek County 4 E Deep River 05 1548CST 0 0 1.00K 0.00K Hail (1.00)

Audubon County 1 S Gray 05 2315CST 0 0 0.00K 0.00K Hail (0.88)

Audubon County 1 N Exira 05 2321CST 0 0 0.00K 0.00K Hail (0.88)

Greene County 1 W Scranton 05 2343CST 0 0 0.00K 0.00K Hail (0.88)

Guthrie County 6 ESE Fanslers 06 0008CST 0 0 0.00K 0.00K Hail (0.88)

Dallas County 1 NE Perry 06 0030CST 0 0 10.00K 0.00K Hail (1.75)

Dallas County 1 NE Perry 06 0033CST 0 0 3.00K 0.00K Hail (1.00)

Poweshiek County 1 E Brooklyn 06 0230CST 0 0 0.00K 0.00K Hail (0.88)

Polk County 1 W Altoona 06 0231CST 0 0 1.00K 0.00K Thunderstorm Wind (61MG)

100 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central

A weak cold front moved through the state during the afternoon of the 4th. This front stalled south of Iowa and became a warm front during the day on the 5th. The boundary set the stage for strong lift and thunderstorm development already by the morning of the 5th, and continued through the day. The atmosphere became quite unstable with most unstable CAPE values rising to the 1000-2500 J/kg range by early afternoon. There was considerable deep shear with 60 to 70 kts available in the 0-6 km layer. The LCL level fell as the front lifted north, falling to 750 meters along the frontal boundary. The initial severe weather that occurred was in the form of large hail. The available CAPE in the -10 to -30 C layer of the atmosphere was around 200 J/kg in a relatively low freezing level environment. The freezing level was in the 10,000 to 12,000 foot range. Considerable moisture streamed north to feed the storms. In spite of the surface dews points north of the front in the upper 30s and 40s, readings in the 60s were found just south of the boundary. Precipitable water values rose to 1.25 inches over southern Iowa by early afternoon. Many of the storms produced hail, with numerous reports in the one inch to golf ball size category. The largest hail occurred over south central Iowa with golf ball size hail reported in Clarke County. A secondary round of storms moved through south central into central Iowa by mid afternoon. One of the storms dropped golf ball size hail in Marion County as well, completely covering the ground. The same cluster of storms continued northeast with large hail reported. Half dollar size hail covered the ground in Poweshiek County near Deep River. Another round of thunderstorms developed over northeast Iowa during the afternoon, but they only produced some small hail. Thunderstorm activity decreased during the early evening hours, but began to fire again after sunset as the low level jet developed. Surface winds of 25 to 40 kts from the south developed over Kansas during the evening, with 850 mb winds increasing to southwest at 50 to 60 kts. Most Unstable CAPE increased to 2000 to 3000 J/kg, while the CAPE in the -10 to -30 C layer of the atmosphere increased to between 200 and 400 J/kg. Freezing levels increased slightly to a relatively uniform 12,000 feet. Strong thunderstorms formed over southeast Nebraska into southwest Iowa before midnight and continued to track northeast. The storms produced hail, though not as large as the hail during the afternoon for the most part. One of the stronger storms produced golf ball size hail briefly as it moved northeast of Perry. During the predawn hours, downdraft CAPE increased to 700 to 800 J/kg. A cluster of thunderstorms moving across Iowa formed a small mesoscale low and produced a bow echo segment. Gusty winds resulted, however most were below 50 MPH. As the storm moved through Polk County, a 63 MPH wind gust was reported by an RWIS site in Altoona. Note: The measured wind gust of 61 knots is equivalent to 70 mph.

Grundy County 1 S Dike 06 1550CST 0 0 5.00K 0.00K Hail (1.00)

Black Hawk County 1 S Cedar Falls 06 1554CST 0 0 3.00K 0.00K Hail (1.00)

Grundy County 1 S Dike 06 1555CST 0 0 10.00K 0.00K Hail (1.75)

Black Hawk County Cedar Falls 06 1558CST 0 0 1.00K 0.00K Hail (0.88)

Black Hawk County 1 SW Waterloo 06 1558CST 0 0 3.00K 0.00K Hail (1.00)

Black Hawk County Cedar Falls 06 1559CST 0 0 5.00K 0.00K Hail (1.00)

Black Hawk County Cedar Falls 06 1601CST 0 0 3.00K 0.00K Hail (1.00)

Black Hawk County 1 S Cedar Falls 06 1602CST 0 0 15.00K 0.00K Hail (1.50)

Black Hawk County 1 SW Cedar Falls 06 1604CST 0 0 25.00K 0.00K Hail (2.00)

Black Hawk County Cedar Falls 06 1605CST 0 0 15.00K 0.00K Hail (1.75)

Black Hawk County Cedar Falls 06 1605CST 0 0 50.00K 0.00K Hail (2.00)

101 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Black Hawk County 1 S Cedar City 06 1605CST 0 0 10.00K 0.00K Hail (1.50)

Black Hawk County 1 NE (ALO)Waterloo Muni A 06 1608CST 0 0 15.00K 0.00K Hail (1.75)

Black Hawk County Cedar Falls 06 1608CST 0 0 100.00K 0.00K Hail (2.50)

Black Hawk County 1 SE Waterloo 06 1609CST 0 0 15.00K 0.00K Hail (1.75)

Black Hawk County 1 SE Waterloo 06 1609CST 0 0 25.00K 0.00K Hail (1.75)

Black Hawk County Cedar Falls 06 1609CST 0 0 1.00M 0.00K Hail (3.50)

The ground was covered by 1 to 3.5 inch diameter hail. Black Hawk County 1 SW (ALO)Waterloo Muni A 06 1610CST 0 0 50.00K 0.00K Hail (2.50)

Tennis ball size hail just south of the Waterloo Airport, reported by KWWL.

Black Hawk County Cedar Falls 06 1610CST 0 0 20.00K 0.00K Hail (1.75)

Hail was reported at the intersection of 6th and Main. Bremer County 1 E Denver 06 1614CST 0 0 0.00K 0.00K Hail (0.88)

Bremer County 1 E Readlyn 06 1622CST 0 0 1.00K 0.00K Hail (1.00)

Marion County Knoxville 06 1624CST 0 0 3.00K 0.00K Hail (1.00)

Hail was reported on the northwest edge of Knoxville. Marion County 2 SE Fifield 06 1630CST 0 0 1.00K 0.00K Hail (1.00)

Marion County 2 NNE Otley 06 1630CST 0 0 150.00K 0.00K Thunderstorm Wind (83EG)

Multiple homes with hail damaged siding, windows knocked out, garage with two walls blown out, and a machine shed roof was blown off. Two large trees were also twisted. Note: The estimated wind gust of 83 knots is equivalent to 96 mph. Marion County 5 NNE Pella 06 1642CST 0 0 1.00K 0.00K Hail (1.00)

Jasper County Sully 06 1646CST 0 0 0.00K 0.00K Thunderstorm Wind (58MG) Note: The measured wind gust of 58 knots is equivalent to 67 mph.

102 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Jasper County Sully 06 1647CST 0 0 25.00K 0.00K Thunderstorm Wind (83EG)

Numerous power power outages were reported along with three power poles down near Highway F62.

Note: The estimated wind gust of 83 knots is equivalent to 96 mph. Jasper County 3 NE Turner 06 1655CST 0 0 20.00K 0.00K Thunderstorm Wind (83EG)

There were several power poles snapped along T38. Note: The estimated wind gust of 83 knots is equivalent to 96 mph. Poweshiek County 1 SE Grinnell 06 1656CST 0 0 3.00M 0.00K Thunderstorm Wind (91EG)

On the north edge of Grinnell, cars were reported off the road and flipped. Power lines were down and roofs were blown off homes. Note: The estimated wind gust of 91 knots is equivalent to 105 mph. Poweshiek County 1 SSE Grinnell 06 1656CST 0 0 75.00K 0.00K Thunderstorm Wind (78EG)

Damage was caused to several homes in Grinnell. Note: The estimated wind gust of 78 knots is equivalent to 90 mph. Marion County 1 N Pleasantville 06 1657CST 0 0 0.00K 0.00K Hail (0.88)

Jasper County 2 WSW Turner 06 1657CST 0 0 50.00K 0.00K Thunderstorm Wind (70EG)

Thunderstorm winds blew a camper off the road at mile post 178, causing a multiple vehicle accident.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Poweshiek County 1 SE Grinnell 06 1659CST 0 0 3.00K 0.00K Hail (1.00)

Poweshiek County 1 SW Grinnell 06 1700CST 0 0 100.00K 0.00K Thunderstorm Wind (70EG)

Two barns were blown down just west of Grinnell. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Poweshiek County 2 W Grinnell 06 1701CST 0 0 2.00K 0.00K Thunderstorm Wind (78EG)

Two power poles were blown down and damage was reported to small buildings.

Note: The estimated wind gust of 78 knots is equivalent to 90 mph. Poweshiek County 1 SE Grinnell 06 1702CST 0 6 500.00K 0.00K Hail (1.50)

Poweshiek County 1 SE Grinnell 06 1702CST 0 0 10.00K 0.00K Thunderstorm Wind (65EG)

Sheet metal was blown down and there was street sign damage.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Poweshiek County 2 SW Brooklyn 06 1705CST 0 0 10.00K 0.00K Thunderstorm Wind (65EG)

Tree damage was reported with winds estimated near 75 MPH. Note: The estimated wind gust of 65 knots is equivalent to 75 mph.

103 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Poweshiek County 4 NW Malcolm 06 1706CST 0 0 0.00K 0.00K Funnel Cloud

The funnel cloud was less then half way to the ground. Jasper County Monroe 06 1707CST 0 0 3.00K 0.00K Hail (1.00)

Tama County 1 SSE Tama Arpt 06 1714CST 0 0 1.00K 0.00K Hail (1.00)

Warren County New Virginia 06 1720CST 0 0 0.00K 0.00K Hail (0.88)

Warren County New Virginia 06 1722CST 0 0 3.00K 0.00K Hail (1.00)

Warren County 2 ESE Palmyra 06 1722CST 0 0 0.00K 0.00K Hail (0.88)

Jasper County Monroe 06 1744CST 0 0 3.00K 0.00K Hail (1.00)

Jasper County 2 NW Monroe 06 1744CST 0 0 10.00K 0.00K Hail (1.75)

The frontal boundary from the previous night lifted north as a warm front as low pressure over Kansas pushed northeast into Iowa. The low eventually tracked from southwest Iowa in the afternoon to east central Iowa by early evening. To the southeast of the front, temperatures warmed into the upper 70s to mid 80s, with dew point temperatures in the upper 50s to mid 60s. The atmosphere became quite unstable with lifted indices falling to -5 to -8 Celsius and CAPE rising to 2000-3000 J/kg. The situation was very dynamic with a synoptic scale upper level trough to the west and broad southwest flow over the central U.S. The jet at 300 mb was around 100 kts with 500 mb winds southwest at 75+ kts. This aided in producing deep layer shear of 75 to 100 kts over southeast Iowa by late afternoon. Ample inflow was present with moisture transport at the 850 mb level produced by a 35 to 40 kt flow. This increased precipitable water values to between 1 and 1.2 inches. Thunderstorms fired along the frontal boundary during the mid to late afternoon as the front became a cold front. With 300-400 J/kg of CAPE in the -10 to -30 layer of the atmosphere, and 700-1000 J/kg of downdraft CAPE available, the atmosphere was loaded for the production of wind and hail. In addition, the freezing level was a relatively low 12,000 feet. The line of thunderstorms that formed ahead of the advancing cold front became severe quickly, producing large hail. Much of the hail was in the 1 to 1.5 inch diameter range, however there were several reports of golf ball to tennis ball size hail. The largest hail was over northeast Iowa with golf ball size reported in Grundy County, and tennis ball size from the northwest edge of Waterloo toward Cedar Falls in Black Hawk County. Also in Black Hawk County, a few stones were measured to 3.5 inches in diameter in Cedar Falls. As the system unfolded, the storms began to produce high winds. Wind gusts of 75 to 100 MPH occurred with the stronger storms. Multiple homes had siding damage due to hail blown through the siding, and windows were knocked out in Marion County east of Monroe. High winds snapped power poles in Jasper and Poweshiek Counties. A camper was blown off of Interstate 80 at mile post 178, resulting in a multiple car accident. In Poweshiek County, cars were blown off of the road and flipped, power poles snapped, and roofs were taken off of houses near Grinnell. Power was knocked out to several thousand customers in the Grinnell area. Six members of the Grinnell College track team were caught in the storm and sustained injuries from the hail. They were bruised, taken to the hospital, treated and released. Officials in the city of Grinnell estimated damage due to the high winds from this storm at $10,000,000.

Palo Alto County 1 E Emmetsburg Arpt 12 1407CST 0 0 3.00K 0.00K Hail (1.00)

Palo Alto County 1 SE Emmetsburg 12 1409CST 0 0 5.00K 0.00K Hail (1.25)

Palo Alto County 1 SE Emmetsburg 12 1410CST 0 0 3.00K 0.00K Hail (1.00)

Hail beginning to accumulate at the time of observation.

104 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Palo Alto County 2 SE Emmetsburg Arpt 12 1413CST 0 0 5.00K 0.00K Hail (1.25)

Palo Alto County 1 SE Emmetsburg 12 1415CST 0 0 25.00K 0.00K Hail (1.75)

Largest hail was on the south side of town where golf ball size hail was reported. Quarter size hail fell on the north side of town. Hancock County 1 NE Corwith 12 1535CST 0 0 0.00K 0.00K Hail (0.88)

Kossuth County 1 NE Algona 12 1537CST 0 0 0.00K 0.00K Hail (0.88)

Kossuth County 1 NW Algona 12 1538CST 0 0 10.00K 0.00K Hail (1.50)

Kossuth County Algona 12 1539CST 0 0 25.00K 0.00K Hail (1.75)

Kossuth County Algona 12 1541CST 0 0 2.00K 0.00K Hail (1.00)

Kossuth County 2 E Algona 12 1547CST 0 0 3.00K 0.00K Hail (1.00)

Spotter arrived home from work at 1611 CST with quarter size hail still on the ground. The start time was estimated.

Hancock County 4 ENE Denhart 12 1700CST 0 0 2.00K 0.00K Hail (1.00)

A warm front was positioned from northeast Nebraska, southeast across central into east central Iowa. Thunderstorms fired north of the front during the night, and the activity continued into the day. A 25 kt low level jet continued to feed moisture into the atmosphere during the day. By early to mid afternoon, most unstable CAPE reached 1900 J/kg, with lifted indices around - 7 C. Though there was considerable downdraft CAPE available at around 1400 J/kg, it was not realized. The atmosphere was weakly sheared with about 30 kts of shear present. Hail was the main feature with the storms. The freezing level was low, sloping from around 9600 feet over central Minnesota, to 10,800 feet at Omaha. Numerous reports of hail ranging from nickel to golf ball size were received. Golf ball size hail fell in Kossuth and Pocahontas Counties. Many locations reported that the hail covered the ground. The storms also produced very heavy rainfall. With over an inch of precipitable water available, the storms were quite efficient. Two to two and one half inches of rainfall was reported from near Spencer to Thompson. Though flash flooding did not occur, the heavy rain pushed rivers over flood stage.

Humboldt County 1 S Humboldt Muni Arpt 13 1503CST 1 NE Dakota City 16 2045CST 0 0 0.00K 0.00K Flood

A small area of heavy rainfall occurred between Spencer and Mason City. This caused the Des Moines river to rise once again after it had fallen below flood stage a few days prior. The river crested several inches above flood stage in Humboldt.

Carroll County 1 S Glidden 24 1349CST 0 0 3.00K 0.00K Hail (1.00)

Nickel to quarter size hail was reported. Carroll County 1 S Glidden 24 1354CST 0 0 3.00K 0.00K Hail (1.00)

Most of the hail was dime size, with the largest stones quarter size.

105 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Emmet County 2 SE Estherville 24 1515CST 0 0 0.00K 0.00K Hail (0.88)

A strong upper level low pressure area moved into the central U.S. out of the southwest U.S. during the afternoon of the 24th. The initial dry slot had passed through the state the previous night. The upper low reformed to the southeast of the state during the afternoon of the 24th. Moisture streamed back into the state as the deformation zone formed over Iowa. The atmosphere was somewhat unstable due to the steep lapse rates and cold air aloft. The freezing level ranged from around 8,600 feet over the west to 11,500 feet over the east. CAPE values were around 1000 J/kg with a weakly sheared environment. The effective shear was around 25 kts. Precipitable water values were around .7 inches. Thunderstorms formed during the afternoon. The structure was nearly vertical. Many of the storms produced at least small hail and gusty winds. Downdraft CAPE was around 700 J/kg, with available CAPE in the -10 to -30 C layer of the atmosphere of 200-400 J/kg. The storms pulsed up and down with a few producing brief hail of nickel to quarter size in Carroll and Emmet Counties.

Mahaska County 8 S Cedar 24 2130CST 4 SSE Givin 26 0200CST 0 0 25.00K 0.00K Flood

Wapello County 3 S Eddyville 24 2220CST 26 1450CST 0 0 25.00K 0.00K Flood

Wayne County 2 SSE Confidence 24 2251CST 1 SSW Bethlehem 26 0046CST 0 0 50.00K 0.00K Flood

Lucas County 3 WSW Russell 25 0238CST 26 1536CST 0 0 25.00K 0.00K Flood

Marion County 2 WNW Bussey 25 0257CST 26 1355CST 0 0 50.00K 0.00K Flood

Rainfall was widespread and frequent from the 2nd through the 7th. Locally heavy rain fell over northeastern Iowa on the 5th- 6th with 4.14 inches at Elkader. However, a statewide average of only 0.45 inches of rain fell from the 8th through the 21st, allowing a large amount of fieldwork to take place. However, a small area from near Spencer to Mason City saw heavy rain on the 12th. The greatest rains of the month came on the 23rd, 24th and 25th with south central and southeast Iowa receiving widespread 2 to 3 inch totals. The resulting flooding was relatively minor and brief. Monthly rain totals varied from 1.43 inches at Sioux City to 6.68 inches at Elkader. Following the 7th snowiest winter on record, snow was noticeably absent in April with just a little snow briefly mixed with rain over southwestern Iowa on the 7th. The combination of much warmer than usual weather, and the extended streak of mostly dry weather at mid-month, allowed corn planting to proceed at the most rapid pace on record. Iowa Agricultural Statistics reported that 68% of the intended corn acres had been planted as of April 25. This is a truly amazing development considering that Iowa entered spring with super-saturated soils and deep snow cover.

Lucas County 2 NNE Norwood 25 0700CST 2 W Lucas 26 0100CST 0 0 50.00K 0.00K Flood

Marion County 2 WNW Knoxville 25 0700CST 2 WNW Columbia 26 0100CST 0 0 50.00K 0.00K Flood

Two days of rainfall, with amounts of 3 to 5 inches total, occurred over parts of southern Iowa. The antecedent conditions were quite dry, so flooding was limited to ponding in fields for the most part and eventually some river flooding. More significant flooding occurred in typical flood prone areas of Marion and Lucas Counties. Some minor flooding also took place in eastern Monroe County. The most significant flooding took place along the White Breast Creek in Lucas County, and the English River in Monroe County. Water overtopped U.S. Highway 65 at the intersection of U.S. Highway 34 in Lucas County.

Decatur County 1 N Grand River 25 0752CST 26 0807CST 0 0 0.00K 0.00K Flood

106 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central

Rainfall was widespread and frequent from the 2nd through the 7th. Locally heavy rain fell over northeastern Iowa on the 5th- 6th with 4.14 inches at Elkader. However, a statewide average of only 0.45 inches of rain fell from the 8th through the 21st, allowing a large amount of fieldwork to take place. However, a small area from near Spencer to Mason City saw heavy rain on the 12th. The greatest rains of the month came on the 23rd, 24th and 25th with south central and southeast Iowa receiving widespread 2 to 3 inch totals. The resulting flooding was relatively minor and brief. Monthly rain totals varied from 1.43 inches at Sioux City to 6.68 inches at Elkader. Following the 7th snowiest winter on record, snow was noticeably absent in April with just a little snow briefly mixed with rain over southwestern Iowa on the 7th. The combination of much warmer than usual weather, and the extended streak of mostly dry weather at mid-month, allowed corn planting to proceed at the most rapid pace on record. Iowa Agricultural Statistics reported that 68% of the intended corn acres had been planted as of April 25. This is a truly amazing development considering that Iowa entered spring with super-saturated soils and deep snow cover.

Monroe County 7 ESE Selection 25 0900CST 6 SE Avery 1100CST 0 0 0.00K 0.00K Flood

Two days of rainfall, with amounts of 3 to 5 inches total, occurred over parts of southern Iowa. The antecedent conditions were quite dry, so flooding was limited to ponding in fields for the most part and eventually some river flooding. More significant flooding occurred in typical flood prone areas of Marion and Lucas Counties. Some minor flooding also took place in eastern Monroe County. The most significant flooding took place along the White Breast Creek in Lucas County, and the English River in Monroe County. Water overtopped U.S. Highway 65 at the intersection of U.S. Highway 34 in Lucas County.

Webster County 2 NNW (FOD)Ft Dodge Muni A29 1838CST 0 0 5.00K 0.00K Hail (1.25)

Webster County 1 S Badger 29 1840CST 0 0 0.00K 0.00K Hail (0.88)

Webster County 1 SE Badger 29 1844CST 0 0 0.00K 0.00K Hail (0.88)

Humboldt County 1 N Thor 29 1847CST 0 0 3.00K 0.00K Hail (1.00)

Webster County Gowrie 29 1850CST 0 0 0.00K 0.00K Hail (0.75)

Webster County 2 ESE (FOD)Ft Dodge Muni A 29 1853CST 0 0 0.00K 0.00K Hail (0.75)

Worth County 1 S Northwood 29 1853CST 0 0 10.00K 0.00K Hail (1.50)

Cerro Gordo County 1 NNW Ventura 29 1854CST 0 0 10.00K 0.00K Hail (1.75)

Hancock County 2 E Garner 29 1900CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Tree branch damage was reported and a 2 foot diameter tree was blown down.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Humboldt County 1 N Thor 29 1901CST 0 0 5.00K 0.00K Hail (1.25)

Cass County 1 SE Griswold 29 1938CST 0 0 0.00K 0.00K Hail (0.88)

107 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Cass County 1 S Griswold 29 1938CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Nickel size hail also fell with the high winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cass County 1 E Griswold 29 1939CST 0 0 5.00K 0.00K Hail (1.00)

Quarter size hail, combined with 50 MPH winds was reported. Cass County 1 SSE Griswold 29 1940CST 0 0 0.00K 0.00K Hail (0.88)

Cass County 1 E Griswold 29 1941CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Pea size hail combined with the wind. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cerro Gordo County 1 NE Meservey 29 1955CST 0 0 3.00K 0.00K Hail (1.00)

Cerro Gordo County 1 W Rockwell 29 2012CST 0 0 3.00K 0.00K Hail (1.00)

Audubon County Imballton 29 2100CST 0 0 3.00K 0.00K Hail (1.00)

Guthrie County 2 S Bagley 29 2234CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind speeds estimated at 60 MPH. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Greene County Cooper 29 2242CST 0 0 20.00K 0.00K Hail (1.75)

A strong upper level low pressure system lifted out of the southwest U.S. during the day on the 29th into the overnight hours. A strong southwest flow aloft was present, with a 115 kt jet in place across the area. Moisture was limited with the system initially with surface dew points in the low to mid 50s. The dew point climbed gradually during the afternoon to near 60. The CAPE was marginal with this system, in the 500 to 1000 J/kg range. Downdraft CAPE was around 600 J/kg, with available CAPE in the -10 to -30 C layer of the atmosphere between 200 and 300 J/kg. The freezing level was a relatively low 11,500 feet. The air mass became unstable during the afternoon and early evening hours as surface temperatures warmed in the upper 70s to low 80s. The lifted index fell to around -3 C. Surface low pressure lifted northeast out of Kansas into northeast Kansas by late evening. A boundary extending north-northeast to south-southwest through the low was the focus for thunderstorm development. Moisture increased by evening with precipitable water values increasing to 1.1 to 1.3 inches. A strong line of thunderstorms developed and moved into western Iowa and extended through north central Iowa by evening. For the most part, the mode of severe weather was in the form of hail. Numerous reports of nickel to golf ball size hail were received along the line. Golf ball size hail fell in Cerro Gordo County near Ventura, and also in Greene County northwest of Jamaica. Most of the storms produced wind gusts of 30 to 50 MPH, though there were spotty reports of 60 MPH winds.

Decatur County 5 ENE Davis City 30 0900CST 0 0 3.00K 0.00K Hail (1.00)

Decatur County 3 WNW Woodland 30 0910CST 0 0 0.00K 0.00K Hail (0.75)

Monroe County 2 NNE Weller 30 0946CST 0 0 1.00K 0.00K Hail (0.88)

108 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Central Marion County 2 ESE Pella Muni Arpt 30 1000CST 0 0 1.00K 0.00K Hail (0.88)

Poweshiek County 1 W Searsboro 30 1016CST 0 0 5.00K 0.00K Hail (1.00)

Appanoose County 2 W Dean 30 1045CST 0 0 1.00K 0.00K Hail (0.88)

Appanoose County 1 NW Moulton 30 1050CST 0 0 0.00K 0.00K Hail (0.75)

Wapello County 2 SE Rutledge 30 1110CST 0 0 5.00K 0.00K Hail (1.00)

Bremer County 1 E Denver 30 1115CST 0 0 2.00K 0.00K Lightning

A tree was stuck by lightning and fell down. Wapello County 1 NW Ottumwa 30 1116CST 0 0 5.00K 0.00K Hail (1.00)

Wapello County 1 NW Ottumwa 30 1117CST 0 0 10.00K 0.00K Hail (1.00)

Wapello County 3 SSE Rutledge 30 1125CST 0 0 5.00K 0.00K Hail (1.00)

Wapello County Ottumwa 30 1130CST 0 0 10.00K 0.00K Lightning

Thunderstorms that moved through western Iowa during the evening of the 29th into the early morning hours of the 30th continued into the day on the 30th. The airmass where the storms were had become stabilized as the outflow boundary had outrun the convection. Just east of the line however, instability still existed with the lifted index around -2 C, 1000 J/kg of CAPE, and at least 40 kts of shear available. A cold front entered western Iowa during the morning, and progressed eastward as a strong upper level shortwave lifted out of the southwest U.S. This rekindled the thunderstorm line from the previous night and the storms became severe by mid to late morning. The only severe weather produced was in the form of dime to quarter size hail from south central into southeast Iowa. Lightning struck a tree in Bremer County, taking it down. As the thunderstorms moved east of the Ottuwma area, lightning strikes from the back side of the storm struck a house in Ottumwa, causing minor damage.

IOWA, East Central and Southeast Benton County 1 S Belle Plaine 02 1142CST 0 0 0.00K 0.00K Hail (0.75)

Non-severe hail (<1.0) fell in Belle Plaine, IA. Buchanan County 1 W Independence 02 1210CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated to be 60 mph blew down some tree limbs in Independence, IA around 110 pm April 2.

A cold front in the central plains pushed eastward into central Iowa on April 2nd, bringing some showers and thunderstorms to areas west of the Mississippi River. One of the storms was severe, producing gusty winds which blew down some tree limbs in Independence, IA. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Des Moines County 1 SSE Lenox Park 04 1030CST 0 0 0.00K 0.00K Hail (0.88)

Non-severe hail (<1.0) fell in Burlington, IA.

109 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast Keokuk County 3 E Delta 04 1557CST 0 0 0.00K 0.00K Hail (0.88)

Non-severe hail (<1.0) fell near Sigourney, IA. Scott County 3 ENE Davenport Arpt 04 1659CST 0 0 0.00K 0.00K Hail (0.88)

Non-severe hail (<1.0) fell near Eldridge, IA. The hail covered the ground.

Scott County 1 W Princeton 04 1712CST 0 0 0.00K 0.00K Hail (0.75)

Non-severe hail (<1.0) fell in Princeton, IA at 612 pm April 4. The hail covered the ground.

Muscatine County Conesville 04 1839CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell in Conesville, IA at 739 pm April 4.

Muscatine County 2 WNW Muscatine 04 1851CST 0 0 0.00K 0.00K Hail (1.00) Quarter sized hail fell on the Highway 61 Bypass on the west side of Muscatine, IA at 751 pm April 4.

Muscatine County 1 W Muscatine 04 1852CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell on the west central part of Muscatine, IA at 752 pm April 4.

Muscatine County 1 WNW Muscatine 04 1853CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell about 1 mile west of Highway 61 in Muscatine, IA at 753 pm April 4.

Muscatine County 1 NNE Muscatine 04 1853CST 1856CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell for 3 minutes in Muscatine, IA between 753 pm and 756 pm April 4.

Muscatine County 1 WNW Muscatine 04 1855CST 0 0 0.00K 0.00K Hail (1.00)

Nickel to quarter sized hail fell in Muscatine, IA at 755 pm April 4. The hail covered the ground.

Muscatine County 3 NNE Muscatine 04 1856CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell at the intersection of Highway 38 and Highway 61 on the north side of Muscatine, IA at 756 pm April 4.

Muscatine County 1 NE Muscatine 04 1858CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell in Muscatine, IA at 758 pm April 4. Muscatine County 1 W Muscatine 04 1901CST 0 0 50.00K 0.00K Hail (1.25)

Half dollar sized hail fell on the west side of Muscatine, IA at 801 pm April 4. The hail dented some cars.

110 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast

Skies were mostly cloudy on Easter Sunday as an upper level disturbance crossed the region during the afternoon and early evening hours. The system triggered several severe thunderstorms with hail up to the size of a golf ball reported in Cordova, IL, with several reports of 1 inch diameter hail in Muscatine, Scott, and Whiteside counties.

Iowa County 1 SW Williamsburg 05 1610CST 0 0 0.00K 0.00K Hail (0.88)

Non-severe hail (<1.0) fell near Williamsburg, IA at 510 pm April 5.

Iowa County 3 ESE Genoa Bluff 05 1610CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell about 4 miles west of Williamsburg, IA at 510 pm April 5.

Iowa County Conroy 05 1620CST 0 0 0.00K 0.00K Hail (0.75)

Non-severe hail (<1.0) fell in Conroy, IA at 520 pm April 5.

Iowa County 6 ENE Williamsburg 05 1625CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell on Interstate 80 near mile marker 225 about 6 miles east northeast of Williamsburg, IA at 525 pm April 5. Johnson County 1 NW Tiffin 05 1641CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell about 1 mile west of Tiffin, IA at 541 pm April 5.

Johnson County 1 SE North Liberty 05 1642CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell in North Liberty, IA at 542 pm April 5.

Johnson County 1 SE North Liberty 05 1645CST 0 0 0.00K 0.00K Hail (0.75)

Non-severe hail (<1.0) fell at Exit 4 on Interstate 380 near North Liberty, IA at 545 pm April 5.

Johnson County 1 SE North Liberty 05 1650CST 0 0 0.00K 0.00K Hail (0.88)

Non-severe hail (<1.0) fell in North Liberty, IA at 550 pm April 5.

Johnson County 1 E Solon 05 1657CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell in Solon, IA at 557 pm April 5. Linn County 3 NNW Lafayette 05 1740CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell about 4 miles east of Center Point, IA at 640 pm April 5.

Linn County Alburnett 05 1740CST 0 0 1.00K 0.00K Thunderstorm Wind (56EG)

Wind gusts estimated to be 65 mph blew some branches down and ripped some shingles and siding off a home in Alburnett, IA around 640 pm April 5. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

111 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast Linn County 1 E Central City 05 1741CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell in Central City, IA at 641 pm April 5.

Buchanan County 2 SE Monti 05 1743CST 0 0 0.00K 0.00K Hail (0.75)

Non-severe hail (<1.0) fell near Monti, IA at 643 pm April 5.

Linn County Coggon 05 1747CST 0 0 0.00K 0.00K Hail (1.25)

Half dollar sized hail fell in Coggon, IA at 647 pm April 5. The hail covered the ground.

Delaware County 2 NE Robinson 05 1748CST 0 0 0.00K 0.00K Hail (0.88)

Non-severe hail (<1.0) fell about 4 miles west of Ryan, IA at 648 pm April 5. The hail covered the ground.

Jones County 1 SE Monticello Muni Arpt 05 1815CST 0 0 0.00K 0.00K Thunderstorm Wind (59MG)

A 68 mph wind gust was recorded by the AWOS at the Monticello Municipal Airport just southeast of Monticello, IA at 715 pm April 5. Note: The measured wind gust of 59 knots is equivalent to 68 mph. Linn County 3 ENE Walker 05 2050CST 0 0 1.00K 0.00K Thunderstorm Wind (61EG)

Wind gusts estimated to be 70 mph blew a tin utility shed across a street in Walker, IA around 950 pm April 5. In addition, a section of a privacy fence was blown down, a large softwood tree was blown down, and a 4x4 street sign post was snapped in half. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Delaware County 3 SE Robinson 05 2107CST 0 0 25.00K 0.00K Thunderstorm Wind (56EG)

Wind gusts estimated to be 65 mph damaged or destroyed an unoccupied mobile home about 5 miles southwest of Ryan, IA around 1007 pm April 5. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Benton County 1 NNE Newhall 05 2110CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)

Wind gusts estimated to be 65 mph damaged some signs at a Chevy Dealership in Newhall, IA around 1010 pm April 5.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Benton County 1 NNE Atkins 05 2112CST 0 0 0.00K 0.00K Thunderstorm Wind (64MG)

A 74 mph wind gust was measured at the Atkins, IA Fire Department at 1012 pm April 5.

Note: The measured wind gust of 64 knots is equivalent to 74 mph. Benton County 2 NNE Atkins 05 2112CST 0 0 50.00K 0.00K Thunderstorm Wind (61EG)

Wind gusts estimated to be 70 mph blew a steel roof off of a farm outbuilding, ripped the top of a silo off, and blew a barn down just north of Atkins, IA around 1012 pm April 5. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

112 Time Path Path Number of Estimated April 2010 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 ESE Buck Creek 05 2122CST 0 0 10.00K 0.00K Thunderstorm Wind (56EG)

Wind gusts estimated to be 65 mph damaged the roof of a barn about 3 miles southwest of Hopkinton, IA at 1022 pm April 5.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Jones County 4 N Monticello 05 2127CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated to be 60 mph caused a horse trailer to flip over on Highway 38 near Sam Springs or about 5 miles southeast of Hopkinton, IA around 1027 pm April 5. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Linn County 3 S Cedar Rapids 05 2127CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Wind gusts estimated to be 60 to 65 mph were observed about 1 mile south southeast of Cedar Rapids, IA at 1027 pm April 5.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Linn County 3 SE Cedar Rapids 05 2130CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts measuring 60 mph were observed about 3 miles east of Cedar Rapids, IA at 1030 pm April 5.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Linn County 3 S Cedar Rapids 05 2135CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated to be 60 mph lofted a sheet of plywood and damaged the Hy-Vee Garden Center on the east side of Cedar Rapids, IA at 1035 pm April 5. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Dubuque County 3 N Fillmore 05 2138CST 0 0 50.00K 0.00K Thunderstorm Wind (56EG)

Wind gusts estimated to be 65 mph destroyed a barn about 6 miles northeast of Cascade, IA around 1038 pm April 5.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Dubuque County 1 E Cascade 05 2140CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

A 58 mph wind gust was measured at the Cascade, IA Fire Department at 1040 pm April 5.

Note: The measured wind gust of 50 knots is equivalent to 58 mph. Dubuque County 1 E Center Grove 05 2150CST 0 0 0.00K 0.00K Hail (1.25)

Half dollar sized hail fell in Dubuque, IA at 1050 pm April 5. This report was relayed by WREX TV.

Dubuque County 3SSW(DBQ)Dubuque Mun Ar 05 2150CST 0 0 150.00K 0.00K Thunderstorm Wind (61EG)

Wind gusts estimated to be 70 mph ripped the roof off of a house near the intersection of Buncombe Rd and Bennettville Rd or about 3 miles south southwest of the Dubuque, IA Regional Airport at 1050 pm April 5.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Dubuque County 2 SE (DBQ)Dubuque Muni Ar 05 2150CST 0 0 50.00K 0.00K Thunderstorm Wind (61EG)

Wind gusts estimated to be 70 mph blew some farm machinery over and downed some power lines about 2 miles southeast of the Dubuque, IA Regional Airport at 1050 pm April 5. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

113 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast Dubuque County 2 WNW Bernard 05 2152CST 0 1 25.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated to be 60 mph blew a semi truck off the road at the intersection of Highway 151 and Sundown Rd or about 9 miles west southwest of the Dubuque, IA Regional Airport at 1052 pm April 5.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Dubuque County 1 E (DBQ)Dubuque Muni Ar 05 2156CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)

A 60 mph wind gust was recorded by the ASOS at the Dubuque, IA Regional Airport at 1056 pm April 5.

Note: The measured wind gust of 52 knots is equivalent to 60 mph. Jackson County 3 NW La Motte 05 2207CST 0 0 35.00K 0.00K Thunderstorm Wind (56EG)

Wind gusts estimated to be 65 mph ripped the roof off of a machine shed and blew a post through the side of a mobile home just east of the Dubuque-Jackson county line on 230th Avenue or about 3 miles north of La Motte, IA at 1107 pm April 5.

April 5th started off with sunny skies which helped to warm things up. The sun in addition to a developing low pressure system in Kansas pushed a warm front northward into Iowa. The front stalled out along and south of Highway 34, leaving areas north of the boundary in the 60s, while those to the south rose into the 70s. The sunshine coupled with increasing moisture levels resulted in thunderstorm development during the afternoon and evening. Some of the thunderstorms were severe, producing large hail and damaging winds. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

Linn County 2 NNE Beverly 06 0051CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated to be 60 mph blew down a large highway exit sign on Highway 30 marking the 16th Avenue Exit around 151 am April 6. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Johnson County 1 NNE Hills 06 0314CST 0 0 0.00K 0.00K Hail (0.88)

Non-severe hail (<1.0) fell in Hills, IA at 414 am April 6. Scott County 1 NNE Davenport Arpt 06 0415CST 0 0 0.00K 0.00K Hail (0.88)

Non-severe hail (<1.0) fell in Eldridge, IA at 515 am April 6.

Scott County 2 SSW Scott County Park 06 0418CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell in Park View, IA at 518 am April 6. Scott County 4 W Le Claire 06 0430CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell in Le Claire, IA at 530 am April 6. Scott County 4 W Le Claire 06 0436CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell in Le Claire, IA at 536 am April 6. A warm front extending from northeast Kansas along the Missouri and Iowa border to northern Indiana lifted to the north on April 6th resulting in the development of some showers and thunderstorms. Some storms were severe, producing large hail and damaging winds.

114 Time Path Path Number of Estimated April 2010 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 Jesup 06 1528CST 0 0 0.00K 0.00K Hail (0.88)

Non-severe hail (<1.0) fell in Jesup, IA at 428 pm April 6. Buchanan County Jesup 06 1530CST 0 0 0.00K 0.00K Hail (0.88)

Non-severe hail (<1.0) fell near Jesup, IA at 430 pm April 6. The hail started to cover the ground.

Buchanan County 1 SW Jesup 06 1537CST 0 0 0.00K 0.00K Hail (0.75)

Non-severe hail (<1.0) fell in Jesup, IA at 437 pm April 6. Buchanan County 2 W Aurora 06 1605CST 0 0 0.00K 0.00K Hail (1.75)

Golf ball sized hail fell just west of Aurora, IA at 505 pm April 6.

Buchanan County 4 NE Otterville 06 1650CST 0 0 30.00K 0.00K Thunderstorm Wind (61EG)

Wind gusts estimated to be 70 mph blew two semi trucks and two cars off of Highway 150 about 5 miles north of Independence, IA around 550 pm April 6. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Delaware County Backbone State Park 06 1715CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Wind gusts estimated to be 70 mph blew down some 1 foot diameter tree limbs in Backbone State Park about 3 miles north of Dundee, IA around 615 pm April 6. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Benton County 1 NW Garrison 06 1726CST 0 0 0.00K 0.00K Hail (0.75)

Non-severe hail (<1.0) fell 7 miles west of Vinton, IA at 626 pm April 6.

Benton County 3 N Mt Auburn 06 1747CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell about 2 miles north of Mount Auburn, IA at 647 pm April 6.

Buchanan County Aurora 06 1749CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell in Aurora, IA at 649 pm April 6. Buchanan County 1 W Independence 06 1803CST 0 0 0.00K 0.00K Hail (0.75)

Non-severe hail (<1.0) fell in Independence, IA at 703 pm April 6.

Buchanan County 4 WSW Stanley 06 1812CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell about 4 miles west southwest of Stanley, IA at 712 pm April 6.

Linn County 3 NNW Paris 06 1818CST 0 0 0.00K 0.00K Hail (0.75)

Non-severe hail (<1.0) fell about 3 miles north northwest of Paris, IA at 718 pm April 6.

115 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast Jones County 3 WNW Langworthy 06 1828CST 0 0 0.00K 0.00K Hail (0.75)

Non-severe hail (<1.0) fell about 8 miles north of Anamosa, IA at 728 pm April 6.

Delaware County Delhi 06 1838CST 0 0 0.00K 0.00K Hail (1.75)

Golf ball sized hail fell in Delhi, IA around 738 pm April 6. The hail was covering much of the ground.

Delaware County 6 N Sand Spg 06 1841CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell about 2 miles west of Worthington, IA at 741 pm April 6.

Linn County 3 WSW Cedar Rapids 06 1944CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell about 2 miles west northwest of Cedar Rapids, IA at 844 pm April 6.

Linn County 1 E Marion 06 1952CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell in Marion, IA at 852 pm April 6. Jones County 1 S Wapsipinicon Sp 06 2009CST 0 0 0.00K 0.00K Hail (0.75)

Non-severe hail (<1.0) fell about 2 miles south of Anamosa, IA at 909 pm April 6.

A warm front extending from northeast Kansas along the Missouri and Iowa border to northern Indiana lifted to the north on April 6th resulting in the development of some showers and thunderstorms. Some storms were severe, producing large hail and damaging winds. Iowa County 6 WNW Koszta 09 0815CST 4 NE East Amana 10 0045CST 0 0 0.00K 0.00K Flood

Heavy rains during the first week or so of April resulted in the Iowa River at Marengo going above the moderate flood stage level of 15.5 feet on April 9th around 815 am. It crested around 15.53 feet around 430 pm April 9. It fell below the moderate flood stage level around 145 am April 10. Heavy rains during the first week or so of April resulted in the Iowa River at Marengo going above the moderate flood stage level of 15.5 feet on April 9th around 815 am. It crested around 15.53 feet around 430 pm April 9. It fell below the moderate flood stage level around 145 am April 10.

Des Moines County 2 SW Burlington 23 2040CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

An isolated thunderstorm knocked down a tree onto an Alliant Energy transmission line connecting to a $3.2 million substation at the intersection of Fourth and Fifth Streets in Burlington, IA during the evening of April 23. Power was out to most of the downtown area until the early morning hours of April 24. Time estimated.

An isolated thunderstorm knocked down a tree in Burlington, IA during the evening of April 23. The tree fell onto some power lines resulting in a power outage to most of the downtown area. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Des Moines County 8 W Danville Wilson Arpt 24 1630CST 3 N Burlington 2130CST 0 0 0.00K 0.00K Flash Flood

Heavy rains during the late afternoon and early evening hours of April 24 resulted is flash flooding of some streets in Burlington, Fort Madison, and Keokuk, IA and some surrounding communities.

Heavy rains during the late afternoon and early evening hours of April 24 resulted is flash flooding of some streets in Burlington, Fort Madison, and Keokuk, IA and some surrounding communities.

116 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast Iowa County 6 WNW Koszta 25 1245CST 4 NE East Amana 26 1015CST 0 0 0.00K 0.00K Flood

Heavy rains during the last week of April resulted in the Iowa River at Marengo going above the moderate flood stage level of 15.5 feet on April 25th around 145 pm. It crested around 15.84 feet around 745 pm April 25. It fell below the moderate flood stage level around 1115 am April 26. Heavy rains during the last week of April resulted in the Iowa River at Marengo going above the moderate flood stage level of 15.5 feet on April 25th around 145 pm. It crested around 15.84 feet around 745 pm April 25. It fell below the moderate flood stage level around 1115 am April 26.

Keokuk County 1 W Ollie 30 1140CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell 1 mile west of Ollie, IA at 1240 pm April 30.

Johnson County 1 SE Iowa City 30 1224CST 0 0 0.00K 0.00K Hail (0.75)

Non-severe hail (<1.0) fell in Iowa City, IA at 124 pm April 30.

Johnson County 3 ENE Iowa City 30 1225CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell at the Highway 1 and Interstate 80 interchange on the northeast side of Iowa City, IA at 125 pm April 30.

Cedar County 2 W Lime City 30 1240CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Wind gusts estimated to be 70 mph blew down some trees and branches just southeast of Rochester, IA around 140 pm April 30. This report was relayed by KCRG TV. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Cedar County 2 W Lime City 30 1244CST 0 0 0.00K 0.00K Thunderstorm Wind (56MG)

A 65 mph wind gust was measured about 2 miles southeast of Rochester, IA at 144 pm April 30.

Note: The measured wind gust of 56 knots is equivalent to 64 mph. Clinton County 2 NW Dewitt 30 1312CST 0 0 0.00K 0.00K Hail (0.75)

Non-severe hail (<1.0) fell about 1 mile north of De Witt, IA on Highway 61 at 212 pm April 30.

Clinton County 3 NE Welton 30 1312CST 0 0 10.00K 0.00K Thunderstorm Wind (56EG)

Wind gusts estimated to be 65 mph damaged a barn about 2 miles northeast of Welton, IA at 212 pm April 30.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Dubuque County 2 NE (DBQ)Dubuque Muni Ar 30 1325CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated to be 60 mph blew a semi truck into the median of Highway 61 about 1 mile north northeast of the Dubuque, IA Regional Airport around 225 pm April 30. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Dubuque County 1 NE (DBQ)Dubuque Muni Ar 30 1325CST 0 0 500.00K 0.00K Thunderstorm Wind (61EG)

117 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, East Central and Southeast

Wind gusts estimated to be 70 mph destroyed a hanger at the Dubuque, IA Regional Airport at 225 pm April 30. Parts of the hanger were lofted into two other hanger buildings damaging them. In addition, several airplanes inside the hangers were also heavily damaged. An airport official also contributed to this report.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Lee County 1 SW Donnellson 30 1400CST 0 0 0.00K 0.00K Hail (0.75)

Non-severe hail (<1.0) fell in Donnellson, IA at 300 pm April 30. The hail covered the ground.

Lee County 1 WSW Donnellson 30 1405CST 0 0 0.00K 0.00K Hail (0.75)

Non-severe hail (<1.0) fell near Donnellson, IA around 305 pm April 30.

Lee County 1 WSW Donnellson 30 1405CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated to be 60 mph blew some branches down in Donnellson, IA around 305 pm April 30.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Lee County 1 WSW Donnellson 30 1405CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated to be 60 mph were observed in Donnellson, IA around 305 pm April 30.

Showers and thunderstorms moved northeastward across the area April 30th, as a cold front pushed into central Iowa. Some of the storms surpassed severe thresholds, producing damaging winds and large hail. Torrential downpours of rain were also common as the storms moved through, dumping a quick half inch to an inch and a quarter of rain across the area. Daytime high temperatures ranged from the lower 70s near Independence to around 80 in Freeport, the Quad Cities, and Muscatine. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

IOWA, Northeast Fayette County 1 W Maynard 02 1220CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Amateur radio operators reported estimated wind gusts of 60 to 70 mph.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Winneshiek County 1 E Ossian 02 1225CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

Law enforcement officials in Winneshiek county reported some power lines blown down near Ossian.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Winneshiek County 2 NNE Decorah Tatro Arpt 02 1233CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

Law enforcement officials in Winneshiek county reported trees blown down across U.S. Highway 52 at College Drive near Decorah. A line of thunderstorms formed along a cold front as it moved through northeast Iowa. Severe winds and heavy rainfall were produced by the storms. The winds were estimated between speeds of 60 to 70 mph creating some minor damage across parts of Winneshiek county. The fast movement of the storms prevented the heavy rain from producing any flooding. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Fayette County 4 SSE Arlington 06 1610CST 0 0 8.25K 0.00K Hail (2.00)

Amateur radio operators reported thirteen skylight windows and some vehicles were damaged at the Starmont High School.

118 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Northeast Clayton County 2 WNW Elkader 06 1625CST 0 0 0.00K 0.00K Hail (1.00)

Fayette County 1 W Oelwein 06 1642CST 1644CST 0 0 0.00K 0.00K Hail (1.00)

This storm also produced quarter sized hail on the southwest side of Oelwein.

Clayton County 1 NW Garnavillo 06 1650CST 0 0 0.00K 0.00K Hail (0.75)

Trained spotters also reported some standing water as 1.5 inches of rail fell.

Fayette County 2 E Oelwein Muni Arpt 06 1651CST 2 W Oelwein 1655CST 0 0 0.00K 0.00K Hail (1.75)

Golf ball sized hail was also reported 1 mile west of Oelwein. Trained spotters continued to report golf ball sized hail through 1655 at an unreported location within the city of Oelwein.

Fayette County 2 SW Oelwein 06 1730CST 1920CST 0 0 0.00K 0.00K Flood

A trained spotter in Oelwein reported a small local creek was out of its banks where it flows through the Oelwein city park. In other parts of the city, a lot of running water occurred with full drainage ditches and standing water was reported in yards, especially on the south side of the city.

Clayton County 2 NW Read 06 1735CST 0 0 0.00K 0.00K Hail (1.00)

Amateur radio operators reported hail covering the ground. Thunderstorms developed during the late afternoon of April 6th north of a slow moving warm front. These storms produced large hail across parts of Fayette and Clayton counties. The hail sized range from three quarters of an inch up to golf ball.

Clayton County Littleport 06 2130CST 07 0230CST 0 0 5.00K 0.00K Flood

Two rounds of slow moving thunderstorms on April 6th into the 7th produced locally heavy rains across central and southern Clayton county. Reports from cooperative observers indicated around 3.5 inches of rain fell at Strawberry Point and just over 4 inches fell near Elkader. This heavy rain pushed the Volga River out of its banks at Littleport for a short period on the 6th and 7th. Slow moving thunderstorms on April 6th into the 7th produced locally heavy rain over central and southern Clayton County. This heavy rain caused the Volga River at Littleport to briefly top flood stage on the 6th and 7th.

Floyd County 3 W Rockford 29 2020CST 0 0 0.00K 0.00K Hail (1.00)

Floyd County 3 NNW Floyd 29 2045CST 0 0 0.00K 0.00K Hail (1.00)

A warm front lifted northward into southern Minnesota during the evening hours of April 29th. Scattered severe thunderstorms developed along the warm front and moved over northeast Iowa in the evening hours. The thunderstorms produced hail up to one inch in Floyd County.

119 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Northwest Plymouth County 6 N Akron 01 0000CST 04 1800CST 0 0 0.00K 0.00K Flood

Continued flooding of the Big Sioux River from March abated and ended in early April, with minor flooding affecting mainly fields adjacent to the river. Starting the month at near a foot above flood stage at Akron, the river fell below flood stage on April 4th.

Sioux County 5 NNW Hawarden 01 0000CST 04 1800CST 0 0 0.00K 0.00K Flood

Continued flooding of the Big Sioux River from March abated and ended in early April, with minor flooding affecting mainly fields adjacent to the river. Starting the month at near a foot above flood stage at Hawarden, the river fell below flood stage on April 4th. Continued flooding of parts of the Big Sioux River from March snowmelt abated and ended during the first few days in April.

Buena Vista County Linn Grove 01 0000CST 04 1800CST 0 0 0.00K 0.00K Flood

Continued flooding of the Little Sioux River from March snowmelt abated and ended during the first few days in April. The minor flooding affected a few fields along the river. The river started the month at less than a foot above flood stage at Linn Grove, and fell below flood stage on April 4th.

Clay County 10 W Fostoria 01 0000CST 04 1800CST 0 0 0.00K 0.00K Flood

Continued flooding of the Little Sioux River from March snowmelt abated and ended during the first few days in April. The minor flooding affected a few fields along the river. The river started the month at less than a foot above flood stage at Spencer, and fell below flood stage by the end of the first day, with minor flooding lingering to the 4th of April at the southern edge of the county. Continued flooding of parts of the Little Sioux River from March snowmelt abated and ended during the first few days in April.

Buena Vista County 3 S Linn Grove 12 0720CST 0 0 0.00K 0.00K Hail (0.75)

Cherokee County 2 SSW Mary Hill 12 0950CST 0 0 0.00K 0.00K Hail (1.00)

Buena Vista County 3 W Linn Grove 12 1207CST 0 0 0.00K 0.00K Hail (1.00)

Buena Vista County 1 N Sioux Rapids 12 1227CST 0 0 0.00K 0.00K Hail (1.00)

Buena Vista County 2 E Sioux Rapids 12 1227CST 1245CST 0 0 0.00K 0.00K Hail (0.75)

Hail covered the ground. Buena Vista County Sioux Rapids 12 1230CST 0 0 0.00K 0.00K Hail (1.50)

Large hail covered the ground. Buena Vista County 4 E Sioux Rapids 12 1230CST 0 0 0.00K 0.00K Hail (1.75)

120 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Northwest Buena Vista County 5 E Sioux Rapids 12 1250CST 0 0 0.00K 0.00K Hail (0.75)

Hail was accompanied by strong, but not damaging, winds. Clay County 1 W Webb 12 1259CST 0 0 0.00K 0.00K Hail (0.88)

Clay County 1 W Webb 12 1300CST 0 0 0.00K 0.00K Hail (1.00)

Clay County 3 SE Webb 12 1300CST 0 0 0.00K 0.00K Hail (1.00)

Clay County 1 N Spencer 12 1318CST 0 0 0.00K 0.00K Hail (0.75)

Hail was mostly pea size with a few stones up to dime size. Thunderstorms produced large hail in Cherokee, Buena Vista, and Clay Counties in northwest Iowa during the morning and early afternoon of April 12th. Lyon County 2 NW Larchwood 24 1625CST 0 0 0.00K 0.00K Hail (1.00)

Lyon County 1 N Loster 24 1702CST 0 0 0.00K 0.00K Hail (0.88)

Lyon County 1 N Loster 24 1710CST 0 0 0.00K 0.00K Hail (1.00)

Lyon County 1 N Loster 24 1720CST 0 0 0.00K 0.00K Hail (1.75)

Sioux County 1 NW Alton 24 1744CST 0 0 0.00K 0.00K Hail (0.75)

Sioux County 4 N Hull 24 1802CST 0 0 0.00K 0.00K Hail (1.00)

Lyon County Doon 24 1811CST 0 0 0.00K 0.00K Hail (0.75)

Sioux County 4 NNE Hull 24 1820CST 0 0 0.00K 0.00K Hail (1.75)

Sioux County 1 NW Hull 24 1900CST 2100CST 0 0 0.00K 0.00K Flash Flood

Heavy rain caused flooding of a trailer park, a tank farm, and part of U.S. Highway 18.

Thunderstorms produced large hail at several locations in Lyon and Sioux Counties of northwest Iowa during the late afternoon and early evening of April 24th. The storms also produced flash flooding in one area.

121 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Southwest Pottawattamie County Avoca 05 2305CST 0 0 0.00K Hail (1.50)

Hail up to 1.5 inches in diameter caused rather extensive damage to cars and even some houses in the Avoca area.

Shelby County 7 SE Corley 05 2305CST 0 0 0.00K 0.00K Hail (1.00)

Harrison County Dunlap 06 0000CST 0 0 0.00K 0.00K Hail (1.00)

Shelby County Harlan 06 0001CST 0 0 0.00K 0.00K Hail (0.88)

Monona County Soldier 06 0012CST 0 0 0.00K 0.00K Hail (0.88)

Monona County Soldier 06 0015CST 0 0 0.00K 0.00K Hail (1.00)

A trained spotter reported that hail a little larger than nickel-size fell.

Thunderstorms, a few severe, developed north of a warm front in an area of warm advection aided by a low level jet. The storms in southwest Iowa mainly produced hail up to quarter-size, although just to the west in eastern Nebraska one storm caused wind damage. Fremont County 4 SW Thurman 24 1225CST 1235CST 0 0 0.00K 0.00K Hail (0.88)

Hail up to nickel size fell for about 10 minutes southwest of Thurman.

A large upper level low pressure system caused scattered thunderstorms to develop during the late morning and early afternoon of April 24th. The storms then moved west and southwest in response to the upper circulation center...and a few of them produced large hail. Mills County 1 N Emerson 29 1913CST 0 0 0.00K 0.00K Hail (0.88)

Mills County 1 W Pacific City 29 2157CST 2200CST 1.43 44 0 0 0.00K 0.00K Tornado (EF0)

Big tornado. Mills County 4 ESE Glenwood 29 2200CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm wind gusts estimated at close to 60 mph downed 2 to 3 inch in diameter tree limbs in the area.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Mills County 2 SW Mineola 29 2200CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated at 55 to 60 mph downed half of a small dead tree in the area.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Mills County 3 NE Malvern 29 2215CST 2216CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated at around 60 mph downed several tree limbs up to 6 inches in diameter east northeast of Malvern. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

122 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

IOWA, Southwest Mills County 2 W Henderson 29 2220CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm wind gusts estimated at close to 60 mph downed 3 to 4 inch in diameter tree limbs.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Fremont County 3 ENE Percival 29 2235CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated at 55 to 60 mph downed a 2 inch in diameter tree limb.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Fremont County 2 SSW Thurman 29 2235CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated at 55 to 60 mph downed a tree limb around 2 inches in diameter.

A large upper level low pressure system over the northern plains brought gusty southwest winds and warm and relatively dry air to eastern Nebraska and southwest Iowa during the afternoon of April 29th. By early evening strong south winds transporting more moist and unstable air caused thunderstorms to develop over north central Kansas near the intersection of the drier air and this more unstable airmass. These thunderstorms then tracked northeast into southeast Nebraska and southwest Iowa aided by an increasing low level jet. The thunderstorms produced a modest amount of large hail reports and at least one tornado in southeast Nebraska. Areas of heavy rain also accompanied some of the activity. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. KANSAS, East Jackson County 1 SE Delia 02 0655CST 0 0 0.00K 0.00K Hail (0.88)

Coffey County 2 WSW Aliceville 02 0730CST 0735CST 0 0 Thunderstorm Wind (52EG)

Several large trees were down along with minor building damage at 9th street and Wayside Road on the west side of Aliceville.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Anderson County 5 ESE Westphalia 02 0732CST 0737CST 0 0 Thunderstorm Wind (56EG)

A portion of a roof was blown off a house and several outbuildings were destroyed near the intersection of Arkansas Street and 900 Road. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Franklin County 1 WSW Homewood 02 0750CST 0 0 0.00K 0.00K Hail (1.00)

Douglas County 2 WSW Lawrence 02 0814CST 0 0 0.00K 0.00K Hail (1.00)

Douglas County 3 S Lake View 02 0815CST 0818CST 0 0 0.00K 0.00K Hail (1.00)

Douglas County 2 SE Lake View 02 0815CST 0 0 0.00K 0.00K Hail (0.88)

123 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East Douglas County 4 W Lawrence 02 0818CST 0 0 0.00K 0.00K Hail (0.88)

Douglas County 4 W Lawrence 02 0818CST 0 0 0.00K 0.00K Hail (0.88)

As a cold front swept through the area scattered thunderstorms formed across east central Kansas. Ahead of the front severe thunderstorms formed and dropped quarter sized hail in Lawrence and Ottawa. Strong winds were also produced by these storms and caused some damage to trees and structures in Coffey and Anderson Counties.

Lyon County 1 S Allen 05 0640CST 0 0 0.00K 0.00K Hail (1.00)

Lyon County 1 N Admire 05 0640CST 0 0 0.00K 0.00K Hail (0.88)

Osage County 2NNWLyndon Pomona Lk Ar 05 0726CST 0 0 0.00K 0.00K Hail (0.88)

Shawnee County 5 W Pauline 05 0746CST 0 0 0.00K 0.00K Hail (1.00)

Shawnee County 6 SSW Menoken 05 0749CST 0 0 0.00K 0.00K Hail (1.00)

Shawnee County 4 SW Topeka 05 0752CST 0 0 0.00K 0.00K Hail (1.00)

Shawnee County Topeka 05 0802CST 0 0 0.00K 0.00K Hail (0.88)

Brown County 2 SW Hiawatha 05 0955CST 0 0 0.00K 0.00K Hail (0.75)

Washington County 3 ESE Kimeo 05 1840CST 0 0 0.00K 0.00K Hail (1.00)

Nemaha County 1 E Seneca 05 1851CST 0 0 0.00K 0.00K Hail (0.88)

Marshall County 1 E Bremen 05 1953CST 0 0 0.00K 0.00K Hail (1.00)

Marshall County 3 WSW Oketo 05 2000CST 0 0 0.00K 0.00K Hail (1.00)

Washington County 1 NE Washington 05 2000CST 0 0 0.00K 0.00K Hail (1.00)

Marshall County 3 NE Herkimer 05 2002CST 0 0 0.00K 0.00K Hail (1.00)

Marshall County 3 WSW Marietta 05 2004CST 2007CST 0 0 0.00K 0.00K Hail (1.25)

124 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East Washington County 1 N Hanover 05 2011CST 0 0 0.00K 0.00K Hail (1.00)

Marshall County 1 E Bremen 05 2015CST 0 0 0.00K 0.00K Hail (1.00)

Washington County 1 N Hanover 05 2015CST 2018CST 0 0 0.00K 0.00K Hail (1.25)

Marshall County 3 E Schroyer 05 2016CST 0 0 0.00K 0.00K Hail (0.88)

Marshall County 1 W Bremen 05 2025CST 0 0 0.00K 0.00K Hail (1.00)

A stationary boundary oriented west to east set up across central Kansas. During the morning hours the boundary lifted northward as a warm front and brought a period of severe weather characterized by marginally severe hail. Later in the day storms initiated again along the surging cold front moving in from the west. Again, marginally severe hail was observed with these storms. Lyon County 6 N Plymouth 06 1409CST 0 0 0.00K 0.00K Hail (1.00)

The hail was reported at the junction of Road C and 240. Lyon County 5 SSW Allen 06 1415CST 0 0 0.00K 0.00K Hail (1.00)

Lyon County 1 N Admire 06 1422CST 0 0 0.00K 0.00K Hail (1.00)

Lyon County 7 NNE Plymouth 06 1431CST 0 0 0.00K 0.00K Hail (0.75)

Osage County 4 N Burlingame 06 1444CST 0 0 0.00K 0.00K Hail (0.75)

Osage County 4 N Burlingame 06 1444CST 1446CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A storm chaser near Burlingame reported an estimated 60 mph wind gust.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Osage County 8 N Burlingame 06 1448CST 0 0 0.00K 0.00K Hail (1.00)

Osage County 2 WSW Peterton 06 1454CST 0 0 0.00K 0.00K Hail (1.75)

Osage County 1 W Osage City 06 1457CST 0 0 0.00K 0.00K Hail (0.88)

Osage County 2 W Overbrook 06 1457CST 0 0 0.00K 0.00K Hail (1.00)

125 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East Osage County 2 NNW Peterton 06 1458CST 0 0 0.00K 0.00K Hail (0.88)

Osage County 3WNWLyndon Pomona Lk Ar 06 1458CST 0 0 0.00K 0.00K Hail (0.75)

Strong winds of 40 to 50 mph caused blowing hail. Osage County 2 NNW Peterton 06 1458CST 1500CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

A trained spotter near Burlingame reported an estimated 70 mph wind gust.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Osage County 3 S Burlingame 06 1500CST 0 0 0.00K 0.00K Hail (1.00)

Osage County 2 W Overbrook 06 1510CST 0 0 0.00K 0.00K Hail (1.00)

Jefferson County 1 W Perry 06 1515CST 0 0 0.00K 0.00K Hail (0.88)

Osage County 5 NE Overbrook 06 1515CST 0 0 0.00K 0.00K Hail (1.00)

Jefferson County 1 NW Williamstown 06 1515CST 1517CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

An emergency manager near Perry reported an estimated 60 mph wind gust.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jefferson County 1 W Perry 06 1515CST 1517CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

An emergency manager reported an estimated 60 mph wind gust near Perry.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Osage County 3 SE Carbondale 06 1518CST 1520CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

A 30 foot tall tree 13 inches in diameter was blown down across the road.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Jefferson County 3 NW Mc Louth 06 1523CST 0 0 0.00K 0.00K Hail (0.88)

Douglas County 1 SW Clinton 06 1525CST 0 0 0.00K 0.00K Hail (1.00)

Osage County 3 SE Carbondale 06 1525CST 1527CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

A 30 foot tall tree 13 inches in diameter was blown down across the road.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

126 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East Jefferson County 2 E Mc Louth 06 1528CST 0 0 0.00K 0.00K Hail (1.00)

The emergency manager also estimated a 55 mph wind gust at the same location.

Osage County 2 WSW Peterton 06 1529CST 0 0 0.00K 0.00K Hail (0.88)

Douglas County 2 WSW Lawrence 06 1530CST 1532CST 0 0 0.00K Thunderstorm Wind (52EG)

A soccer goal was blown ten yards into the adjoining field. Time was estimated.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Douglas County 2 W Lawrence 06 1530CST 1 SE Lawrence Arpt 1540CST 0 0 Thunderstorm Wind (59MG)

An off duty NWS employee discovered widespread tree damage along a strong wind gust path through Lawrence. Many trees were snapped, the largest of which was approximately 30 inches in diameter. This tree was located in the parking lot of Lawrence Memorial Hospital. The Lawrence ASOS, located on the far northeastern portion of town reported a 68 mph wind gust. Note: The measured wind gust of 59 knots is equivalent to 68 mph. Douglas County 1 WNW Lawrence 06 1532CST 1534CST 0 0 0.00K Thunderstorm Wind (56EG)

An off duty NWS employee reported a tree 9 inches in diameter snapped near 6th Street and Iowa Street in Lawrence.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Douglas County 1 NNW Lawrence 06 1532CST 1534CST 0 0 0.00K Thunderstorm Wind (52EG)

This was a delayed report. A power line was down at 6th Street and Maine Street as well as 25th Street and Iowa Street in lawrence. A tree was down near 8th and Alabama. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Douglas County 2 WNW Lawrence 06 1535CST 0 0 0.00K 0.00K Hail (1.00)

Douglas County 2 WNW Lawrence 06 1535CST 1537CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A trained spotter reported an estimated 60 mph wind gust near Lawrence.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jefferson County 4 S Mc Louth Arpt 06 1535CST 1537CST 0 0 0.00K Thunderstorm Wind (52EG)

A 4 inch tree limb was snapped off of a tree. Time was estimated.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Douglas County Midland 06 1537CST 0 0 0.00K 0.00K Hail (0.75)

127 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East Douglas County 1 W Lawrence 06 1537CST 1539CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

An emergency manager near Lawrence reported an estimated 60 mph wind gust.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Douglas County 2 WSW Lawrence 06 1539CST 1541CST 0 0 0.00K 0.00K Thunderstorm Wind (59MG)

The Lawrence Municipal Airport ASOS machine reported a 68 mph wind gust.

Note: The measured wind gust of 59 knots is equivalent to 68 mph. Osage County 1 N Osage City 06 1604CST 0 0 0.00K 0.00K Hail (0.88)

Lyon County 6 SSW Olpe 06 1755CST 0 0 0.00K 0.00K Hail (1.00)

Lyon County 6 SSW Olpe 06 1755CST 1757CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A trained spotter near Olpe reported an estimated 60 mph wind gust.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Lyon County 1 S Olpe 06 1808CST 0 0 0.00K 0.00K Hail (1.00)

Coffey County 3 SW Strawn 06 1848CST 0 0 0.00K 0.00K Hail (0.88)

Coffey County 2 ESE Ottumwa 06 1855CST 0 0 0.00K 0.00K Hail (1.00)

Anderson County 2 W Colony 06 1959CST 0 0 0.00K 0.00K Hail (1.00)

On the afternoon of April 6th, 2010 a line of storms formed along a dry line in central Kansas. These storms produced large hail up to golfball sized and and damaging winds near 70 mph across the area. By 4:00 pm the line of storms moved into east central Kansas and affected Lawrence. Severe winds ripped through the northern portions of town causing significant damage to some of the neighborhoods along and north of 6th Street. The Lawrence Airport ASOS reported a wind gust of 68 mph at 4:39 pm. No structures were reported as being damaged, however, many trees greater than 24 inches in diameter were snapped as a result of the strong winds. After the winds left the area heavy rain affected Lawrence for a couple hours thereafter and caused minor street flooding.

Dickinson County 2 NE Abilene 22 0623CST 0723CST 0 0 0.00K 0.00K Flood

Reports of minor street flooding were reported from Abilene. Also a portion of Old Highway 40 to the west of Abilene is under water. Dickinson County 1 NE Solomon 22 0805CST 0905CST 0 0 0.00K 0.00K Flood

Roads in Solomon were closed due to high water.

128 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East Osage County 1 WNW Lomax 22 1424CST 1524CST 0 0 0.00K 0.00K Flash Flood

An emergency manager reported that small streams were overflowing their banks onto local roads.

Lyon County 2 WNW Hartford 22 1430CST 1530CST 0 0 0.00K 0.00K Flash Flood

A road was washed out .5 mile north of Road 110 just outside Hartford. Spotter reported road under water well into Coffee County as well. Franklin County 1 W Princeton 22 1600CST 1700CST 0 0 0.00K 0.00K Flash Flood

Multiple county roads were flooded in the Princeton area. Franklin County 3 ENE Ottawa 22 1700CST 1800CST 0 0 0.00K 0.00K Flash Flood

A county road was washed out approximately 1 mile north of Ottawa.

Lyon County 2 W Emporia 22 1739CST 1839CST 0 0 0.00K 0.00K Flash Flood

Several roads around Emporia reported to have water running over them. Some roads are reported to be impassable.

Lyon County 7 NNE Plymouth 22 1739CST 1839CST 0 0 0.00K 0.00K Flash Flood

Road 240 was flooded up to 2 feet deep and was barricaded. On the afternoon of April 22, 2010 thunderstorms brought heavy rain to the area, which resulted in flash flooding in Franklin, Lyon, and Osage Counties. Rainfall amounts of up to 3.5 inches fell across the area and caused many roads to be closed.

Ottawa County 6 W Delphos 29 1536CST 1539CST 0 0 Hail (1.75)

Golfball size hail was reported by a trained spotter. Hail damage was sustained to a tractor.

Cloud County 1 SW Concordia 29 1600CST 0 0 0.00K 0.00K Hail (1.00)

Cloud County 1 E Concordia 29 1603CST 0 0 0.00K 0.00K Hail (0.88)

Washington County Washington 29 1630CST 0 0 0.00K 0.00K Hail (1.00)

Republic County Belleville 29 1710CST 0 0 0.00K 0.00K Hail (0.75)

129 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East Republic County Belleville 29 1715CST 1717CST 0 0 0.00K 0.00K Hail (1.25)

Republic County 1 SW Munden 29 1715CST 1718CST 0 0 0.00K 0.00K Hail (1.50)

Republic County Belleville 29 1715CST 1718CST 0 0 0.00K 0.00K Hail (1.75)

Republic County 1 SW New Tabor 29 1730CST 0 0 0.00K 0.00K Hail (1.00)

Republic County 1 W Cuba 29 1739CST 0 0 0.00K 0.00K Hail (1.00)

Washington County 1 N Haddam 29 1748CST 0 0 0.00K 0.00K Hail (1.00)

Washington County 2 NNW Haddam 29 1748CST 0 0 0.00K 0.00K Hail (1.00)

Washington County 3 NW Emmons 29 1812CST 1813CST 0.96 25 0 0 0.00K 0.00K Tornado (EF0)

A brief tornado touchdown occurred over open country approximately 4 miles northeast of Washington. No condensation funnel appeared to reach the ground however dust was noted beneath the rotating wall cloud indicating a ground circulation on two occasions for a period of about 30 seconds. No damage was found to have occurred. The tornado was documented by the general public and storm chasers.

Republic County 1 NNE Courtland 29 1822CST 1824CST 0 0 0.00K 0.00K Hail (1.25)

Republic County 1 E Republic 29 1942CST 0 0 0.00K 0.00K Hail (0.88)

Republic County 7 WNW New Tabor 29 1957CST 0 0 0.00K 0.00K Hail (1.00)

Cloud County 4 NW Macyville 29 2057CST 0 0 0.00K 0.00K Hail (0.88)

Washington County 3 WSW Washington 29 2149CST 0 0 0.00K 0.00K Hail (0.75)

Washington County 1 N Hanover 29 2200CST 2203CST 0 0 Thunderstorm Wind (52EG)

The public reported an estimated 60 mph wind gust near Washington. Small tree limbs were broken.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

130 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, East Cloud County 3 WSW Como 29 2218CST 0 0 0.00K 0.00K Hail (1.00)

Ottawa County 5 E Lamar 29 2230CST 0 0 0.00K 0.00K Hail (1.00)

Cloud County Aurora 29 2230CST 2233CST 0 0 Thunderstorm Wind (52EG)

A tree was blown down due to thunderstorm winds. Time was estimated.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

KSZ022 Riley 29 2239CST 2242CST 0 0 0.00K 0.00K High Wind

Dickinson County 1 E Abilene 29 2253CST 2256CST 0 0 Thunderstorm Wind (52EG)

A trained spotter reported an estimated 60 mph wind gust near Abilene.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Dickinson County Chapman 29 2328CST 2331CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Law enforcement reported an estimated 60 mph wind gust. On the afternoon of April 29th, 2010 strong to severe thunderstorms formed across northern Kansas bringing large hail to the size of golfballs and damaging winds over 60 mph. A brief tornado touchdown occurred over open country approximately 4 miles northeast of Washington. No condensation funnel appeared to reach the ground however dust was noted beneath the rotating wall cloud indicating a ground circulation on two occasions for a period of about 30 seconds. No damage was found to have occurred. The tornado was documented by the general public and storm chasers. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

KSZ054 Lyon 30 0053CST 0056CST 0 0 0.00K 0.00K High Wind

This is a continuation of the previous day's account. On the afternoon of April 29th, 2010 strong to severe thunderstorms formed across northern Kansas bringing large hail to the size of golfballs and damaging winds over 60 mph. A brief tornado touchdown occurred over open country approximately 4 miles northeast of Washington. No condensation funnel appeared to reach the ground however dust was noted beneath the rotating wall cloud indicating a ground circulation on two occasions for a period of about 30 seconds. No damage was found to have occurred. The tornado was documented by the general public and storm chasers. Douglas County 2 SW Eudora 30 0710CST 0 0 0.00K 0.00K Hail (0.88)

Coffey County 3 ENE Sharpe 30 0728CST 0 0 0.00K 0.00K Hail (0.88)

Coffey County 2 ESE Sharpe 30 0730CST 0 0 0.00K 0.00K Hail (1.00)

A single severe storm formed in east central Kansas during the morning of Friday April 30, 2010. Only marginally severe hail was observed from this storm.

131 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Extreme Southeast Bourbon County 3 WSW Redfield 02 0820CST 0 0 Thunderstorm Wind (52EG) Several reports of 60 mph winds were received by the office of Emergency Management. No damage was reported.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Bourbon County 2 N Xenia 02 0820CST 0 0 75.00K 0.00K Thunderstorm Wind (65EG) Thunderstorm winds damaged a modular home near Hidden Valley Lake. The home's roof was lifted off of the home and the western walls were pushed in. In addition, several trees were toppled taking down at least one power line.

Strong to severe thunderstorms, associated with a cold front, pushed across southeast Kansas and into Missouri. The storms initially produced severe wind gusts up to 75 mph in Kansas, then produced flooding rains across portions of central Missouri. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Cherokee County 1 W Columbus 06 2327CST 0 0 0.00K 0.00K Hail (0.88)

Cherokee County 3 ESE Sherwin 06 2327CST 0 0 0.00K 0.00K Hail (0.88)

Cherokee County 2 WSW West Mineral 06 2337CST 0 0 0.00K 0.00K Hail (0.75)

Cherokee County 1 W Columbus 06 2352CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG) Thunderstorm winds downed one inch diameter tree limbs. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Crawford County 1 S Pittsburg 07 0002CST 0 0 0.00K 0.00K Hail (0.88)

Crawford County 2 ENE Kirkwood 07 0002CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG) Thunderstorm winds downed multiple tree limbs from two to four inches in diameter.

A weakening line of thunderstorms sporadically produced large hail and wind damage mainly to trees. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. KANSAS, North Central Phillips County 1 S Logan 01 2043CST 0 0 5.00K 0.00K Hail (1.00)

Rooks County Zurich 01 2056CST 0 0 0.00K 0.00K Hail (0.88)

Phillips County 6 ESE Phillipsburg 01 2104CST 0 0 0.00K 10.00K Hail (1.00)

A surface dryline along the High Plains provided a focus for late evening convective development, with thunderstorms then shifting to the northeast into portions of North Central Kansas. Some thunderstorms were strong to severe, dropping hail anywhere from the size of peas to quarters.

Phillips County 3 NE Prairie View 14 1554CST 0 0 0.00K 0.00K Hail (0.75)

A weak surface boundary stalled across the region provided a focus for scattered thunderstorm development during the afternoon and early evening hours. Moisture pooling along the boundary, along with modest instability but marginal shear, allowed for some strong thunderstorms, dropping hail up to the size of pennies.

132 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, North Central Rooks County 1 NW Plainville 15 1919CST 2119CST 0 0 25.00K 0.00K Flash Flood

A surface cold front pushing across the area brought another round of thunderstorms during the evening hours. Their movement along the front allowed for locally heavy rainfall of generally 1 to 2 inches. One exception was in and near the town of Plainville, which saw over 2 and one half inces of rain in a short amount of time, causing water to run over street curbs and spill into some local shops and stores.

Rooks County 1 WNW Damar 22 1800CST 0 0 0.00K 0.00K Hail (0.75)

An upper level disturbance crossing the Central Plains aided in the development of evening thunderstorms across North Central Kansas. While the best instability remained well to the south, there was enough available to allow for some strong thunderstorms, with penny size hail reported.

Mitchell County 6 S Simpson 29 1642CST 0 0 0.00K 0.00K Hail (1.75)

Jewell County Jewell 29 1930CST 0 0 0.00K 0.00K Hail (1.00)

Osborne County 13 ESE Covert 29 1948CST 0 0 0.00K 0.00K Hail (1.00)

A surface front draped across the region was the focus for convective development across eastern portions of North Central Kansas. These early to mid evening thunderstorms developed as a mid level disturbance crossed the region, and a narrow band of instability nosing in from the south allowed for some thunderstorms to become strong to severe, droping quarter to golfball size hail.

KANSAS, Northeast Johnson County 1 WSW De Soto 02 0815CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A thunderstorm wind gust to 60 mph, was estimated along K-10, just west of Desoto.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Johnson County 1 NE Olathe 02 0830CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds were estimated to gust to near 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Leavenworth County 1 ESE Loring 02 0830CST 0 0 5.00K 0.00K Thunderstorm Wind (61EG)

A roof was blown off a house at 142nd and Krieger Road. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Leavenworth County 3 NW Loring 02 0830CST 0 0 15.00K 0.00K Thunderstorm Wind (61EG)

A 120 by 40 Foot barn roof and the front side of a barn, was destroyed at 158th and K-32. A travel trailer was blown over at 166th and Stilwell Road. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Linn County 1 NE Blue Mound 02 0830CST 0 0 3.00K 0.00K Thunderstorm Wind (56EG)

Structural damage was reported to several metal buildings. A strong cold front with an associated line of strong to severe thunderstorms, moved across the area in the morning hours of April 2, 2010. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

133 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Northeast Leavenworth County Basehor 04 1500CST 0 0 0.00K 0.00K Hail (0.75)

A strong cold front moved across extreme eastern Kansas, during the mid afternoon hours of April 4, 2010. One report of hail was received from Leavenworth County.

Wyandotte County 1 SE Piper 05 0538CST 0 0 0.00K 0.00K Hail (0.75)

A strong thunderstorm produced penny sized hail across Wyandotte County, during the early morning hours of April 5, 2010.

Leavenworth County Jarbalo 06 1540CST 0 0 0.00K 0.00K Hail (0.75)

Leavenworth County 1 S Tonganoxie 06 1544CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm wind gusts were estimated up to 65 mph. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Leavenworth County 2 ESE Reno 06 1545CST 0 0 0.00K 0.00K Hail (1.00)

Leavenworth County 2 ESE Reno 06 1545CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds were estimated up to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Wyandotte County Bonner Spgs 06 1641CST 0 0 0.00K 0.00K Hail (1.00)

Wyandotte County 3 NNE Muncie 06 1644CST 0 0 0.00K 0.00K Thunderstorm Wind (59MG)

Thunderstorm wind gust was measured at 68 mph, at the intersection of I-435 and Kansas Avenue.

Note: The measured wind gust of 59 knots is equivalent to 68 mph. Wyandotte County 3 NNW Muncie 06 1649CST 0 0 0.00K 0.00K Hail (1.00)

Severe thunderstorms brought large hail and damaging winds to the area, during the afternoon hours of April 6, 2010.

Miami County 1 W Osawatomie 23 0834CST 1434CST 0 0 0.00K 0.00K Flash Flood

Plum Creek Road and 335th Street, were closed due to flowing water over the road.

A thunderstorm brought very heavy rains and flash flooding to Leavenworth County, on April 23, 2010.

Leavenworth County Lansing 23 2345CST 0 0 0.00K 0.00K Hail (0.75)

A thunderstorm brought penny sized hail to Leavenworth county, during the late evening hours of April 23, 2010.

Leavenworth County Linwood 30 0712CST 0 0 0.00K 0.00K Hail (0.88)

134 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Northeast Wyandotte County 1 NW Sunflower 30 0725CST 0 0 0.00K 0.00K Hail (1.00)

Wyandotte County 1 SW Piper 30 0725CST 0 0 0.00K 0.00K Hail (1.50)

Leavenworth County 6 SE Lansing 30 0727CST 0 0 0.00K 0.00K Hail (1.25)

Wyandotte County 1 E Wolcott 30 0728CST 0 0 0.00K 0.00K Hail (2.00)

Severe thunderstorms brought large hail and damaging winds to the area, during the morning hours of April 30, 2010.

KANSAS, Northwest

KSZ013-027 Sherman - Wallace 01 1100MST 1438MST 0 0 0.00K 0.00K High Wind

A tightening surface pressure gradient combined with strong winds aloft to produce strong and gusty southwest winds during the afternoon and early evening hours. Several wind gusts around 60 mph occurred.

KSZ001-013>015- Cheyenne - Gove - Logan - Sheridan - Sherman - Thomas - Wallace 027>029 13 1000MST 1800MST 0 0 15.0K 0.00K High Wind

Strong south to southwest surface gradient winds developed during the morning hours and continued through most of the day across eastern Colorado, southwest Nebraska and western Kansas. Peak wind gusts of 50 to 70 mph were common across the area, producing minor damage, including a broken utility pole, and tree and awning damage. One vehicle was blown over on Interstate 70 near Colby, Kansas but no injuries occurred.

Wichita County 1 W Leoti 14 1504CST 0 0 0.00K 0.00K Hail (0.88)

Norton County 4 SE Almena 14 1525CST 0 0 0.00K 0.00K Hail (0.75)

A line of scattered thunderstorms developed during the early afternoon hours from Leoti and Scott City northeast to Norton. A couple reports of penny to nickel sized hail were received from storm spotters.

Greeley County 5 ESE Tribune 22 1223MST 0 0 0.00K 0.00K Hail (1.25)

Greeley County 13 SE Tribune 22 1318MST 0 0 0.00K 0.00K Hail (0.88)

Greeley County 5 ESE Tribune 22 1330MST 0 0 0.25K 0.00K Hail (1.25)

The public reported that the hail broke a window. Wallace County 10 S Sharon Spgs 22 1355MST 0 0 0.00K 0.00K Hail (1.25)

Sherman County 8 S Ruleton 22 1432MST 0 0 0.00K 0.00K Hail (0.88)

135 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Northwest Gove County 10 SE Gove 22 2021CST 2022CST 0.52 10 0 0 0.00K 0.00K Tornado (EF0)

Law enforcement reported a brief tornado. It remained over open fields with no known damage.

Gove County Grinnell 22 2100CST 2300CST 0 0 0.00K 0.00K Flash Flood

Spotter reported street flooding in town and 3.0 inches of rain since 7 pm CDT. Radar estimated rainfall for the storm indicated that 3.55 inches of precipitation had fallen in the immediate area.

Gove County 2 W Grainfield 22 2108CST 1 SE Grinnell 23 0008CST 0 0 0.00K 0.00K Flash Flood

Water was reported over highway 40 at Grainfield. KDOT is preparing to close the highway. Parts of Highway 40 between Grinnell and Grainfield were reported flooded as well. Gove County 5 S Quinter 22 2135CST 23 0035CST 0 0 0.00K 0.00K Flash Flood

Water is reported over Castle Rock Road 5 miles south of Quinter.

Norton County 1 NNE Edmond 22 2225CST 23 0025CST 0 0 0.00K 0.00K Flash Flood

Law enforcement reported State Highway 9 is flooded one mile east of Edmond.

A strong, slow-moving upper low pressure area moved across eastern Colorado and western Kansas during the afternoon and early evening hours. A round of severe weather occurred with thunderstorms initially producing large, damaging hail. By late afternoon, a NE-SW line of supercells developed and moved northeast across Cheyenne and Kit Carson counties in Colorado, producing numerous tornadoes near the town of Kit Carson in Cheyenne county. A tornado was also reported in southeast Gove county Kansas. Later in the evening, storms produced flash flooding over Gove and Norton counties in Kansas.

KANSAS, Southeast Elk County 1 E Howard 02 0650CST 0655CST 0 0 3.00K Thunderstorm Wind (61EG)

Estimated 70 mph winds damaged a fence and a sheet metal shed.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Elk County 4 W Howard 02 0650CST 0655CST 0 0 2.25K Thunderstorm Wind (61EG)

Estimated 70 mph winds damaged a tree and damaged a barn roof.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Elk County 1 SW Howard 02 0655CST 0 0 35.00K Thunderstorm Wind (61EG) A pole barn with dimensions of 40 feet by 60 feet was completely destroyed. Additionally, some minor shed and house damage occurred. Ten inch tree limbs were blown down as well. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

136 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southeast Greenwood County 2 NNW Fall River 02 0657CST 0 0 17.50K Thunderstorm Wind (52EG)

A barn was destroyed and a house was damaged. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Wilson County 5 NE New Albany 02 0705CST 0 0 0.00K 0.00K Hail (0.75)

Montgomery County 2 E Caney 02 0730CST 0 0 18.00K Thunderstorm Wind (65EG) A hay barn was ripped apart and thrown into a field. Also, at the Havana Golf Course, several cedar trees were broken off. The metal roof was torn off a barn with the roof landing in the trees across the street along Old highway 166.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Montgomery County 3 ESE Caney 02 0730CST 0 0 7.50K Thunderstorm Wind (56EG)

Damage to a barns metal roof was reported along with a tree falling on a house.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Wilson County Neodesha 02 0730CST 0750CST 0 0 18.00K Thunderstorm Wind (70EG)

A few power poles were knocked down along 4th Street knocking out power to Neodesha. This power outage left 3500 people without power for most of the day. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Neosho County 2 WSW (CNU)Johnson Ar Ch 02 0744CST 0 0 0.50K Thunderstorm Wind (52EG)

Several trees were knocked down by the strong winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Neosho County 1 W (CNU)Johnson Arpt Ch 02 0746CST 0 0 Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Neosho County 1 NW (CNU)Johnson Arpt Ch 02 0749CST 0 0 0.50K Thunderstorm Wind (52EG)

Several tree limbs were reported down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Allen County Iola 02 0753CST 0800CST 0 0 50.00K Thunderstorm Wind (70EG)

A violent storm with winds estimated at 80 mph moved through Iola, partially collapsing a truck repair shop roof. The roof was also blown off the building across the street with the chimney partially destroyed. Numerous trees were blown down, some of the trees were three to four feet in diameter. A chimney was blown off the roof of a house crashing into a car.

A vigorous cold front moved across the eastern half of Kansas during the morning hours of April 2nd, 2010. A few clusters of strong to severe thunderstorms raced northeast across eastern Kansas ahead of this frontal boundary. The storms moved at unprecedented speeds upwards of 70 mph! Among other things, this fast movement helped the thunderstorms produce brief, but very strong straight line winds. These severe straight line winds caused power outages, damage to numerous outbuildings and homes, and also uprooted trees. The most damage occurred in Elk, Greenwood, Montgomery, Wilson and Allen counties. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Chautauqua County Sedan 05 0356CST 0 0 Hail (1.75)

Fifty three mph winds were also measured as well.

137 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southeast Montgomery County Cherryvale 05 0505CST 0 0 Hail (1.00)

Isolated showers and thunderstorms developed north of an advancing warm front across portions of South Central Kansas. The isolated thunderstorms produced a few reports of large hail.

Chase County 1 W Cottonwood Falls 06 1345CST 0 0 Thunderstorm Wind (52EG)

Spotter estimated pea to half inch sized hail with the 50 to 60 mph winds.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Butler County 10 NE Potwin 06 1422CST 0 0 Hail (1.00)

Marion County 1 NW Burns 06 1422CST 0 0 Hail (1.00)

Butler County 1 ESE Whitewater 06 1617CST 0 0 Hail (0.88)

Hail was accompanied by 45 mph winds and torrential rain. Sedgwick County 3 WSW Park City 06 1620CST 0 0 Hail (1.00)

Sedgwick County 2 SW Park City 06 1628CST 0 0 Hail (1.00)

Nickel to quarter sized hail reported by KWCH television. Sedgwick County 3 NNW (ICT)Wichita Arpt 06 1630CST 0 0 Hail (0.75)

Public reported pea to penny sized hail with heavy showers. Sedgwick County 1 WSW Kechi 06 1631CST 0 0 Hail (0.88)

Pea to slightly larger than nickel sized hail reported by KAKE television Meteorologist.

Marion County 6 N Burns 06 1636CST 2036CST 0 0 0.10K 0.10K Flash Flood

Five inches of rain caused a creek to come out of its banks.

Sedgwick County 4 S Maize 06 1645CST 1655CST 0 0 Hail (0.88)

Sedgwick County 3 NNW (ICT)Wichita Arpt 06 1648CST 0 0 Hail (1.25)

Sedgwick County 3 NNW (ICT)Wichita Arpt 06 1652CST 0 0 Hail (1.50)

Sedgwick County Park City 06 1703CST 0 0 Hail (0.88)

138 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southeast Butler County 1 NW Cassoday 06 1733CST 0 0 Hail (1.00)

Butler County 3 WSW Potwin 06 1735CST 0 0 Thunderstorm Wind (52EG)

A wheelbarrow flew 60 feet. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Chase County 5 SE Matfield Green 06 1745CST 0 0 Hail (1.00)

Greenwood County 1 W Madison 06 1830CST 0 0 Hail (0.75)

Hail was accompanied by 50 to 55 mph winds. Greenwood County 1 SW Madison 06 1835CST 0 0 Hail (1.00)

The hail was accompanied by 60 mph winds. Greenwood County 1 SW Madison 06 1835CST 0 0 Thunderstorm Wind (52EG)

Quarter sized hail covered the ground. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Marion County 1 NW Burns 06 1858CST 0 0 Hail (1.00)

Greenwood County 4 E Eureka 06 1911CST 0 0 Hail (1.00)

Woodson County 6 NW Yates Center 06 1930CST 0 0 Hail (1.00)

Woodson County 2 NE Neosho Falls 06 1955CST 0 0 Hail (1.00)

Chautauqua County 1 N Cedar Vale 06 2022CST 0 0 Hail (0.88)

Chautauqua County 2 W Sedan 06 2030CST 0 0 Hail (1.00)

Chautauqua County 10 WNW Hale 06 2042CST 0 0 Hail (1.00)

Chautauqua County 1 N Sedan 06 2055CST 0 0 Hail (1.75)

Chautauqua County 1 N Sedan 06 2055CST 0 0 Thunderstorm Wind (52EG)

The 60 mph winds were accompanied by one inch hail. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Chautauqua County 8 E Cedar Vale 06 2120CST 0 0 Thunderstorm Wind (52EG)

The strong winds were accompanied by pea sized hail. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

139 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southeast Wilson County 3 WSW Neodesha 06 2145CST 0 0 Hail (1.00)

Forty five mph winds were also reported. Severe thunderstorms developed during the afternoon hours along and east of a dry line as it moved into Eastern Kansas on April 6th, 2010. The supercell thunderstorms were prolific producers of large hail and damaging winds.

Saline County 8 NE New Cambria 22 0630CST 5 NNW Glendale 1630CST 0 0 0.00K 0.00K Flood

Several secondary roads were impassable across western portions of Saline county due to flooding. Brookville in western portions of the county reported 3.50 inches of rain. Additionally, roads in the Solomon area were closed due to high water. Any potential property or crop damage that may have occurred is unknown.

Barton County 1 SW Pawnee Rock 22 0645CST 4 WNW Olmitz 1140CST 0 0 0.00K 0.00K Flood

Flooding was reported in and around both Great Bend and Ellinwood. Just less than 2 inches of rain occurred in Great Bend. Any potential property or crop damage that may have occurred is unknown.

Lincoln County 12 SSW Sylvan Grove 22 0923CST 8 WNW Ash Grove 1445CST 0 0 0.00K 0.00K Flood

Some street flooding occurred across the town of Lincoln. Secondary roads across the county were more than likely impacted by sporadic areas of high water. Creeks near Lincoln ran near bankfull. Any potential property or crop damage that may have occurred is unknown. Numerous showers and thunderstorms during mainly the morning hours of the 22nd produced very heavy rainfall amounts of 2 to 4 inches across central Kansas. The excessive runoff from the heavy rainfall produced mainly minor flooding of typical flood -prone areas across portions of Barton, Lincoln and Saline counties.

Butler County 1 E El Dorado 22 1214CST 1216CST 0 0 Hail (0.88)

Butler County 2 WSW Rosalia 22 1220CST 1240CST 0 0 20.00K 0.00K Heavy Rain

A car collided with a semi on Highway 54 east of El Dorado during the early afternoon hours on the 22nd. The driver of the car was seriously injured (indirect). Very heavy rainfall associated with a strong to severe thunderstorm produced poor visibility, which likely lead to the cause of the accident. Information courtesy of the El Dorado Times.

Butler County 2 ESE El Dorado Res 22 1220CST 0 0 1.00K Thunderstorm Wind (61EG)

A downburst produced estimated 70 mph winds around the Bluestem Point area at El Dorado Lake. Two campers had blown out windows, a dumpster was moved 150 feet, and 5 to 7-inch diameter tree limbs were downed.

A severe thunderstorm moved over the northern half of Butler county during the early afternoon hours on the 22nd. The storm produced estimated 70 mph winds around the El Dorado Lake Area, along with nickel size hail in El Dorado. Blinding rainfall associated with the thunderstorm resulted in an injury automobile accident east of El Dorado. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Butler County 3 W Smileyburg 23 2035CST 0 0 0.50K Thunderstorm Wind (52EG)

Some trees were downed. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

140 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southeast Cowley County 7 WNW Burden 23 2039CST 0 0 0.20K Thunderstorm Wind (52EG)

Some tree limbs were downed. A few strong to severe thunderstorms moved across portions of Cowley and Butler counties during the late evening hours of the 23rd. Estimated wind gusts of 60 mph downed some trees and tree limbs. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Harper County 4 SE Anthony 24 1322CST 1325CST 0 0 0.00K 0.00K Funnel Cloud

The cold air funnel did not touch down or produce any damage.

A cold air funnel 4 miles southeast of Anthony in Harper county on April 24th. The funnel never touched down, and produced no damage. Photographer was Nikki Hightree. Montgomery County 2 W Cherryvale 24 1558CST 0 0 Hail (0.88)

Nickel size hail covered the ground. Sedgwick County 4 E Peck 24 1605CST 0 0 Hail (0.88)

Hail covered the ground along Interstate 35. Relayed by the Topeka NWS.

Scattered strong to marginally severe thunderstorms developed during the afternoon hours of the 24th across portions of central, south-central and southeast Kansas, in response to cold air aloft associated with a strong upper level low pressure area. A funnel cloud was reported in Harper county, and nickel size hail occurred across Montgomery and Sedgwick counties.

Lincoln County 2 ENE Barnard 29 1527CST 0 0 Hail (1.00)

A strong cold front sparked numerous strong to severe thunderstorms across central and south-central Kansas from the late afternoon through late evening hours on the 29th, and even into the early morning hours on the 30th. Some of the more notable storm reports included winds in excess of 70 mph and hail to 2 inches in diameter. The severe weather did produce sporadic structural and tree damage across the area.

KSZ047 Barton 29 1930CST 2030CST 0 0 High Wind

141 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southeast

Very strong southerly winds developed during the mid to late evening hours of the 29th across portions of mainly Central Kansas. Sustained speeds around 40 mph were common, with localized gusts of 50 to 63 mph. The unusually strong southerly winds were likely caused by 80 to 100 mph southerly winds (low-level jet) around 2,000 feet above the ground. Increased inflow into strong to severe thunderstorms approaching from the northwest also likely aided the strong winds. The winds subsided some around midnight. Russell County 3 S Bunker Hill 29 2000CST 0 0 Hail (1.75)

Russell County 4 SW Dorrance 29 2000CST 0 0 10.00K Thunderstorm Wind (61EG)

A metal shed roof was blown off, and a garage was destroyed.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Russell County 1 W Bunker Hill 29 2000CST 0 0 2.00K Thunderstorm Wind (61EG)

A wall and garage door of a farmers shop were bowed in by the estimated 70 mph winds.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Russell County 1 WSW Bunker Hill 29 2000CST 0 0 10.00K Thunderstorm Wind (61EG)

Wind damage was reported at the Bear House Truckstop. Nine vehicles lost side windows due to wind-blown gravel. The estimated 70 mph winds also moved a breezeway wall at the truckstop, and moved an empty ice machine 20 yards into a trailer. Fuel pumps were twisted as well. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Russell County 8 E Milberger 29 2007CST 0 0 Hail (0.88)

Winds of 40 to 50 mph occurred with the hail. Russell County 8 E Milberger 29 2015CST 0 0 Hail (1.00)

Russell County 1 NE Wilson Lake 29 2015CST 0 0 Thunderstorm Wind (52EG)

Measured at Wilson Lake. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Lincoln County 2 NW Ash Grove 29 2023CST 0 0 Hail (0.75)

Barton County 1 N Susank 29 2029CST 0 0 Thunderstorm Wind (52EG)

Estimated wind gust. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Lincoln County 11 SSW Sylvan Grove 29 2047CST 0 0 Hail (1.75)

Lincoln County 9 S Sylvan Grove 29 2052CST 0 0 Hail (1.75)

The golfball size hail was driven by 55 mph winds.

142 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southeast Barton County 2 WSW Great Bend 29 2055CST 0 0 Thunderstorm Wind (52EG)

Estimated wind gust. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Barton County Pawnee Rock 29 2056CST 0 0 Hail (1.00)

Lincoln County 3 S Lincoln 29 2100CST 2120CST 0 0 Hail (0.75)

Winds of 60 mph occurred with the hail. A strong cold front sparked numerous strong to severe thunderstorms across central and south-central Kansas from the late afternoon through late evening hours on the 29th, and even into the early morning hours on the 30th. Some of the more notable storm reports included winds in excess of 70 mph and hail to 2 inches in diameter. The severe weather did produce sporadic structural and tree damage across the area.

KSZ051 McPherson 29 2100CST 2300CST 0 0 High Wind

Very strong southerly winds developed during the mid to late evening hours of the 29th across portions of mainly Central Kansas. Sustained speeds around 40 mph were common, with localized gusts of 50 to 63 mph. The unusually strong southerly winds were likely caused by 80 to 100 mph southerly winds (low-level jet) around 2,000 feet above the ground. Increased inflow into strong to severe thunderstorms approaching from the northwest also likely aided the strong winds. The winds subsided some around midnight. Barton County 2 SW Hoisington 29 2104CST 0 0 Hail (1.00)

Lincoln County 3 S Lincoln 29 2117CST 2120CST 0 0 Thunderstorm Wind (52EG)

Occurred with dime size hail. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Ellsworth County 1 NNW Holyrood 29 2129CST 0 0 Hail (1.00)

The hail was driven by 60 mph winds. Ellsworth County 1 NNW Holyrood 29 2129CST 0 0 Thunderstorm Wind (52EG)

Quarter size hail occurred with the wind. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Barton County 1 E Claflin 29 2131CST 0 0 Hail (0.88)

A strong cold front sparked numerous strong to severe thunderstorms across central and south-central Kansas from the late afternoon through late evening hours on the 29th, and even into the early morning hours on the 30th. Some of the more notable storm reports included winds in excess of 70 mph and hail to 2 inches in diameter. The severe weather did produce sporadic structural and tree damage across the area.

KSZ067 Reno 29 2138CST 0 0 High Wind Very strong southerly winds developed during the mid to late evening hours of the 29th across portions of mainly Central Kansas. Sustained speeds around 40 mph were common, with localized gusts of 50 to 63 mph. The unusually strong southerly winds were likely caused by 80 to 100 mph southerly winds (low-level jet) around 2,000 feet above the ground. Increased inflow into strong to severe thunderstorms approaching from the northwest also likely aided the strong winds. The winds subsided some around midnight.

143 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southeast Barton County 3 W Ellinwood 29 2155CST 0 0 Hail (1.75)

Relayed via Dodge City National Weather Service Office. Ellsworth County 2 N Ellsworth 29 2200CST 0 0 Thunderstorm Wind (61EG)

Estimated wind gust. A strong cold front sparked numerous strong to severe thunderstorms across central and south-central Kansas from the late afternoon through late evening hours on the 29th, and even into the early morning hours on the 30th. Some of the more notable storm reports included winds in excess of 70 mph and hail to 2 inches in diameter. The severe weather did produce sporadic structural and tree damage across the area. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

KSZ068 Harvey 29 2200CST 30 0000CST 0 0 7.0K High Wind

Very strong southerly winds developed during the mid to late evening hours of the 29th across portions of mainly Central Kansas. Sustained speeds around 40 mph were common, with localized gusts of 50 to 63 mph. The unusually strong southerly winds were likely caused by 80 to 100 mph southerly winds (low-level jet) around 2,000 feet above the ground. Increased inflow into strong to severe thunderstorms approaching from the northwest also likely aided the strong winds. The winds subsided some around midnight. Barton County 4 S Claflin 29 2204CST 0 0 Hail (1.00)

Rice County 3 N Lyons 29 2213CST 0 0 Hail (1.00)

Hail was driven by strong winds. Saline County (SLN)Salina Muni Arp 29 2215CST 0 0 Thunderstorm Wind (53MG)

Measured by the Salina Airport ASOS. Note: The measured wind gust of 53 knots is equivalent to 61 mph. Rice County Lyons 29 2216CST 2222CST 0 0 250.00K Hail (1.75)

The hail occurred with estimated 65 mph winds. Numerous vehicles and roofs received hail damage in town, some of which was rather extensive and severe. Incurred property damage is a rough estimate.

Rice County Lyons 29 2216CST 0 0 Thunderstorm Wind (56EG)

The wind occurred with golfball size hail. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Rice County Lyons 29 2220CST 0 0 Hail (1.00)

Hail decreased from golfball to quarter size. Rice County 1 N Lyons 29 2221CST 0 0 Hail (1.75)

Reported by a KAKE tv Storm Chaser. Mcpherson County 1 E Mc Pherson 29 2247CST 0 0 Thunderstorm Wind (50MG)

Reported by KSN WeatherLab equipment.

144 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southeast

A strong cold front sparked numerous strong to severe thunderstorms across central and south-central Kansas from the late afternoon through late evening hours on the 29th, and even into the early morning hours on the 30th. Some of the more notable storm reports included winds in excess of 70 mph and hail to 2 inches in diameter. The severe weather did produce sporadic structural and tree damage across the area. Note: The measured wind gust of 50 knots is equivalent to 58 mph.

KSZ051 McPherson 29 2247CST 0 0 High Wind Very strong southerly winds developed during the mid to late evening hours of the 29th across portions of mainly Central Kansas. Sustained speeds around 40 mph were common, with localized gusts of 50 to 63 mph. The unusually strong southerly winds were likely caused by 80 to 100 mph southerly winds (low-level jet) around 2,000 feet above the ground. Increased inflow into strong to severe thunderstorms approaching from the northwest also likely aided the strong winds. The winds subsided some around midnight. Mcpherson County 1 W Lindsborg 29 2248CST 0 0 Hail (1.00)

Estimated winds of 50 mph occurred with the hail. Reno County 1 E Sylvia 29 2315CST 0 0 Hail (0.88)

Reno County Arlington 29 2325CST 0 0 0.20K Thunderstorm Wind (50EG)

Some tree limbs were downed. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Reno County 1 W Plevna 29 2328CST 0 0 Hail (1.00)

Reno County Arlington 29 2330CST 0 0 Hail (2.00)

Hail stones averaged 1-inch in diameter, with periodic stones reaching 2 inches in diameter.

Reno County 1 E Hutchinson 29 2356CST 0 0 Hail (0.88)

Harvey County 6 S Burrton 30 0002CST 0 0 10.00K Thunderstorm Wind (61EG)

A large machine shed was blown over. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Marion County 1 E Peabody 30 0025CST 0 0 10.00K Thunderstorm Wind (61EG)

A roof was blown off a building at the Peabody Golf Course. A power pole was also downed.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Cowley County 1 E Arkansas City 30 0600CST 0 0 Hail (0.75)

A strong cold front sparked numerous strong to severe thunderstorms across central and south-central Kansas from the late afternoon through late evening hours on the 29th, and even into the early morning hours on the 30th. Some of the more notable storm reports included winds in excess of 70 mph and hail to 2 inches in diameter. The severe weather did produce sporadic structural and tree damage across the area.

KSZ032 Russell 30 1720CST 0 0 High Wind Collapsing showers moving out of Western Kansas in concert with a very dry atmosphere resulted in a measured 58 mph wind gust at the Russell Airport. The dry atmosphere aided in evaporative cooling underneath the collapsing showers, resulting in the enhanced winds reaching the ground.

145 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southwest Ford County 13 WNW Bloom 01 2020CST 0 0 Hail (0.88)

Meade County Fowler 01 2020CST 0 0 Hail (0.75)

Ford County 1 NE Dodge City 01 2027CST 0 0 0.00K 0.00K Hail (0.75)

Ness County 1 W Ness City 01 2032CST 0 0 0.00K 0.00K Hail (0.88)

Clark County 7 SSW Minneola 01 2048CST 0 0 Hail (0.88)

Ford County 3 WSW Spearville 01 2050CST 0 0 Hail (0.88)

Penny to nickel sized hail fell along US highway 50. Ford County 4 ENE Wilroads 01 2055CST 0 0 Hail (0.88)

Ford County 1 N Ford 01 2100CST 0 0 Hail (1.00)

Ford County 3 E Spearville 01 2110CST 0 0 Hail (1.00)

Clark County 9 NNE Sitka 01 2125CST 0 0 Hail (0.75)

Ford County 4 ESE Windthorst 01 2125CST 0 0 Hail (1.00)

Ford County 4 E Bucklin 01 2128CST 0 0 Hail (1.50)

Kiowa County 3 WSW Mullinville 01 2130CST 0 0 Hail (1.00)

Kiowa County 1 E Mullinville 01 2132CST 0 0 Hail (1.00)

Kiowa County 1 W Joy 01 2135CST 0 0 Hail (0.75)

The observer also had 60 mph winds with the hail. Kiowa County 1 W Joy 01 2135CST 0 0 Thunderstorm Wind (52EG)

There was also penny sized hail. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Kiowa County 6 N Mullinville 01 2140CST 0 0 Hail (1.00)

146 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southwest Pawnee County 3 WSW Ash Valley 01 2145CST 0 0 Hail (0.88)

Edwards County 3 S Centerview 01 2150CST 0 0 Hail (0.88)

Edwards County 5 SSW Centerview 01 2150CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts to 60 mph were reported. An upper level trough help to produce strong boundary layer transport of moisture and convergence along a dry line and surface cyclogenesis produced elevated severe thunderstorms after dark. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Stanton County 4 NE Stanton Co Arpt 14 1447CST 0 0 Hail (0.75)

Trego County 2 NW Collyer 14 1612CST 0 0 Hail (1.00)

Barber County 5 SE Quinter 14 1615CST 0 0 Hail (0.75)

Trego County 1 WSW Collyer 14 1615CST 0 0 Hail (0.75)

An upper level trough located over southern New Mexico moved across the area and helped produce scattered thunderstorms.

Hamilton County 18 SSW Syracuse 22 0006MST 0 0 Hail (0.88)

Hamilton County 18 SSW Syracuse 22 0006MST 0 0 0.00K 0.00K Heavy Rain

Rainfall of 1.90 inches fell in a short period at a location 18 miles south-southwest of Syracuse.

Stanton County 12 NW Manter 22 0049CST 0 0 0.00K 0.00K Heavy Rain

Rainfall of 1.50 inches was reported at a location 12 miles northwest of Manter.

Stanton County 14 NNW Manter 22 0054CST 0 0 0.00K 0.00K Heavy Rain

Rainfall of 2.30 inches fell in a short period at a location 14 miles north-northwest of Manter.

Finney County 6 SSE Tennis 22 0150CST 0 0 Hail (1.25)

Hodgeman County 8 N Jetmore 22 0600CST 0 0 0.00K 0.00K Heavy Rain

Rainfall of 2.20 inches fell overnight at a location 8 miles north of Jetmore.

Pawnee County 10 NW Burdett Rozel Arpt 22 0730CST 0 0 0.00K 0.00K Heavy Rain

Rainfall of 3.30 fell overnight at a location 9 miles south of Alexander.

147 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southwest

A speed max aloft advanced across Kansas and helped to enhance elevated convection. There were a few reports of hail but most of the storms produced moderate to heavy amounts of rainfall.

Hamilton County 1 ESE Mayline 22 1251MST 0 0 Hail (1.00)

Hamilton County 1 ESE Mayline 22 1258MST 0 0 Hail (1.00)

Meade County 9 N Collano 22 1340CST 0 0 Hail (1.00)

Gray County 2 NNE Montezuma Arpt 22 1342CST 0 0 Hail (1.00)

Hamilton County 13 SW Kendall 22 1345MST 0 0 Hail (0.75)

Hamilton County 6 SSW Kendall 22 1400MST 0 0 Hail (0.88)

Stanton County 2 SSW Manter 22 1403CST 0 0 Hail (0.75)

Stanton County 4 N Manter 22 1412CST 0 0 Hail (0.75)

Morton County 3 NNW Rolla 22 1535CST 0 0 Hail (1.00)

Hamilton County Kendall 22 1540MST 0 0 Hail (1.75)

Morton County 1 W Rolla 22 1540CST 0 0 Hail (1.00)

There was also a lot of smaller hail falling. Morton County 8 ESE Richfield 22 1555CST 0 0 Hail (1.75)

Morton County 10 ENE Richfield 22 1555CST 0 0 Hail (1.00)

Morton County 8 ESE Richfield 22 1555CST 0 0 Thunderstorm Wind (61EG)

There was damage done to a tin roof and sides of a barn and also the roof on the house was damaged.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Kearny County 5 W Lakin 22 1600CST 0 0 Hail (2.75)

Stanton County 8 N Big Bow 22 1625CST 0 0 Hail (1.75)

Windows were broken by the hail in the spotters vehicle.

148 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southwest Stanton County 11 N Big Bow 22 1628CST 0 0 Hail (1.25)

Kearny County 15 N Deerfield 22 1655CST 0 0 Hail (1.00)

Kearny County 15 N Deerfield 22 1706CST 0 0 Hail (2.00)

Kearny County 15 N Deerfield 22 1706CST 0 0 Hail (2.00)

Scott County 1 SSE Shallow Water 22 1807CST 0 0 Hail (0.75)

Scott County 1 SSE Shallow Water 22 1807CST 0 0 Thunderstorm Wind (56EG)

The off duty employee estimated the wind gusts to 65 mph. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Scott County 1 W Scott City 22 1809CST 0 0 Hail (0.88)

Scott County 1 SW Shallow Water 22 1810CST 0 0 Thunderstorm Wind (71MG)

This wind gust was measured at a ham radio station site. Note: The measured wind gust of 71 knots is equivalent to 82 mph. Scott County 1 W Scott City 22 1812CST 0 0 Hail (1.25)

Haskell County 8 N Satanta Muni Arpt 22 1855CST 0 0 Hail (1.25)

Haskell County 8 N Satanta Muni Arpt 22 1855CST 0 0 Thunderstorm Wind (56MG) Note: The measured wind gust of 56 knots is equivalent to 64 mph.

Clark County 1 S Englewood 22 1925CST 0 0 Hail (0.75)

Finney County 2 ESE Holcomb 22 1931CST 0 0 Hail (0.75)

Finney County 1 NW Holcomb 22 1931CST 0 0 Hail (0.88)

Finney County 2 ESE Holcomb 22 1931CST 0 0 Thunderstorm Wind (52EG)

The winds were estimated to be at least 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Finney County 1 NW Holcomb 22 1937CST 0 0 Hail (0.75)

149 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KANSAS, Southwest Comanche County 1 W Protection 22 2040CST 0 0 Hail (1.00)

Lane County Healy 22 2100CST 23 0300CST 0 0 0.00K 0.00K Flood

The Lane county sheriff reported that major street flooding was indicated in Healy. Water was 4 feet deep at the intersection of highway K4 in town. Trego County Wakeeney 22 2122CST 0 0 Hail (1.00)

A mid level s/wv trough lifted northeast across the area and produced widespread thunderstorms. A east/west frontal boundary was the focusing mechanism. Hail and tornadoes were reported.

Finney County 1 W Garden City 23 1610CST 0 0 Hail (1.00)

Finney County 1 W Garden City 23 1617CST 0 0 Hail (0.88)

Lane County 2 S Amy 23 1650CST 0 0 Hail (0.75)

Lane County 1 W Amy 23 1655CST 0 0 Hail (0.75)

Thunderstorms developed under a closed upper level low and a few became severe.

Barber County 4 WNW Hazelton 24 1656CST 0 0 0.00K 0.00K Hail (0.75)

One lone thunderstorm produced marginal severe hail in Barber county.

Stafford County 4 N Seward 29 2140CST 0 0 Hail (0.88)

Pratt County 2 W Cullison 29 2248CST 0 0 Hail (0.75)

Pratt County 4 W Pratt 29 2256CST 0 0 Hail (1.00)

Stafford County 2 ESE Stafford 29 2302CST 0 0 Hail (1.00)

Stafford County 1 SSE Neola 29 2310CST 0 0 Hail (1.50)

The wind was estimated to be between 50 and 60 mph while the hail was falling.

Elevated thunderstorms developed north of a stalled out front and produced minor severe weather.

150 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Central Allen County 1 W Scottsville 03 0743CST 0 0 Thunderstorm Wind (50EG)

A few trees were reported down and large limbs were broken. A few thunderstorms that formed during the afternoon and early evening hours produced isolated damaging winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Henry County Sligo 05 1708EST 0 0 0.00K 0.00K Hail (1.25)

Trimble County 1 S Abbott 05 1711EST 0 0 0.00K 0.00K Hail (1.75)

Henry County 1 NW Campbellsburg 05 1720EST 0 0 0.00K 0.00K Hail (1.75)

The hail was covering the ground. Harrison County 1 WNW Berry 05 1839EST 0 0 0.00K 0.00K Hail (1.75)

The hail was covering the ground. Harrison County 2 ENE Boyd 05 1845EST 1915EST 0 0 3.00K 0.00K Flash Flood

The KY State EOC reported flash flooding along Snake Lick Creek just west of state highway 27 in northern Harrison county. One family was rescued as water approached several homes in a subdivision.

Afternoon instability combined with an upper level shortwave moving across Indiana and Kentucky to set off afternoon thunderstorms. These thunderstorms produced hail up to golf ball size in north central Kentucky.

Hancock County Patesville 07 2010CST 2015CST 0 0 Thunderstorm Wind (52EG)

Several trees were reported down across the county. One tree fell across Hawesville-Easton road near Patesville.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Ohio County 2 NW Fordsville 07 2014CST 0 0 Thunderstorm Wind (52EG)

A newly constructed gazebo was moved 30 feet off a concrete slab and was damaged.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Butler County Morgantown 07 2040CST 0 0 Thunderstorm Wind (50EG)

Three reports were called in of trees down blocking roadways in Butler county.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Hardin County 2 N Franklin Xrds 07 2231EST 0 0 Thunderstorm Wind (54MG)

A 54 knot gust was measured at the Hardin County mesonet site 8 miles west of Elizabethtown.

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

151 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Central Spencer County 1 W Yoder 07 2250EST 0 0 Thunderstorm Wind (52EG)

A barn was severely damaged on Elk Creek Road one mile south of Highway 55.

A line of thunderstorms ahead of a cold front swept through Indiana and Kentucky. Multiple bowing segments within the line produced wind damage to trees and multiple structures in west central Kentucky. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Logan County 2 SSE Beechland 24 1605CST 0 0 Funnel Cloud

A funnel cloud was sighted at State Road 106 four miles east of Lewisburg.

Logan County Epleys 24 1605CST 0 0 Thunderstorm Wind (52EG)

A large tree was blocking State Road 106 four miles south of Lewisburg.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Butler County 2 N Provo 24 1606CST 0 0 Thunderstorm Wind (52EG)

Trees were reported downed in Provo with wind gusts estimated to be 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Logan County 3 ENE Gordonsville 24 1612CST 0 0 0.00K 0.00K Hail (1.00)

Logan County 1 SW Russellville 24 1615CST 0 0 Thunderstorm Wind (52EG)

A trained spotter reported wind gusts estimated to be 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Logan County 1 SW Russellville 24 1615CST 0 0 Thunderstorm Wind (52EG)

Many trees were reported down on houses and blocking roads. Utility lines were also downed by winds estimated to be 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Logan County 1 ESE Jerico 24 1615CST 0 0 Thunderstorm Wind (52EG)

Trees were reported down in Logan county. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Logan County Epleys 24 1615CST 0 0 Thunderstorm Wind (52EG)

Numerous trees and power lines were reported down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Logan County 1 SW Russellville 24 1617CST 0 0 Thunderstorm Wind (52EG)

A trained spotter reported winds estimated at 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Butler County 2 N Provo 24 1622CST 0 0 Thunderstorm Wind (52EG)

Trees were reported down in Provo. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

152 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Central Butler County 1 E Woodbury 24 1625CST 0 0 Thunderstorm Wind (52EG)

A Co-op observer near Woodbury reported winds estimated around 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Warren County 1 W Richardsville 24 1634CST 0 0 Thunderstorm Wind (56EG)

A trained spotter reported wind gusts estimated to be 65 mph. Pea sized hail was also observed at the same time.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Warren County 1 W Richardsville 24 1635CST 0 0 Thunderstorm Wind (60EG)

Trees were blown down and blocking the road. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Edmonson County 2 NW Huff 24 1640CST 0 0 20.00K Thunderstorm Wind (75EG)

A concrete block garage was destroyed and an RV was blown over 2.5 miles southwest of Sunfish.

Note: The estimated wind gust of 75 knots is equivalent to 86 mph. Edmonson County Sunfish 24 1640CST 1642CST 1.1 50 0 0 30.00K Tornado (EF1)

A storm damage survey team concluded that an EF-1 tornado with wind speeds of 100 miles per hour touched down in northwest Edmonson county at 540 pm CDT Saturday April 24 2010. The 50 yard wide damage path started near Sunfish and traveled east southeast for 1.1 miles. A well built home suffered significant damage along with a shed that was destroyed. Also, several outbuildings were damaged and numerous hardwood and softwood trees were wither uprooted or snapped.

Edmonson County 1 SSW Huff 24 1642CST 0 0 Thunderstorm Wind (59MG)

The public reported a measured wind gust of 59 knots. Note: The measured wind gust of 59 knots is equivalent to 68 mph. Edmonson County 1 S Huff 24 1644CST 0 0 Thunderstorm Wind (52EG)

A storm chaser reported large tree limbs down. Wind gusts were estimated to be around 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Edmonson County 1 S Huff 24 1644CST 0 0 Thunderstorm Wind (52EG)

A storm chaser reported large tree limbs down. Wind gusts were estimated to be 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Hart County Munfordville 24 1710CST 0 0 Thunderstorm Wind (52EG)

Trees were reported down county wide in Hart county with wind gusts estimated to be 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Ohio County 1 N Beaver Dam 24 1715CST 0 0 0.00K 0.00K Flood Minor flooding from heavy rain was reported in the Beaver Dam area as well as the Fordsville area.

153 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Central Green County Allendale 24 1729CST 0 0 Thunderstorm Wind (52EG)

Trees were reported down on Highway 61 near Allendale. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Larue County 1 W Brooks 24 1811EST 0 0 Hail (0.88)

Larue County 1 W Brooks 24 1811EST 0 0 Hail (0.88)

Larue County 1 E Barren Run 24 1820EST 0 0 Thunderstorm Wind (61EG)

Several well built barns were blown away near the junction of highways 222 and 84. A rotating wall cloud and pea sized hail were also reported near this location. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Larue County 1 E Hodgenville 24 1820EST 0 0 Thunderstorm Wind (52EG)

Multiple reports of power lines down were reported throughout the county.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Larue County 2 S Leafdale 24 1823EST 0 0 Thunderstorm Wind (56EG)

The windows were blown out of a house on Dangerfield Road off of Highway 470.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Larue County Tonieville 24 1826EST 0 0 Thunderstorm Wind (52EG)

Barns and small outbuildings were damaged or destroyed along with numerous tree branches blown off.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Bullitt County 3 N Limestone 24 1848EST 0 0 Thunderstorm Wind (52EG)

Power lines were reported down along Highway 480 with estimated wind gusts of 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Marion County Lebanon 24 1848EST 0 0 Thunderstorm Wind (61EG)

Trees and power lines were blown down. In addition windows were blown out of vehicles.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Washington County 1 N Springfield 24 1849EST 0 0 Thunderstorm Wind (52EG)

A tree was reported down and blocking a road. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Spencer County 1 W Taylorsville 24 1900EST 0 0 Thunderstorm Wind (52EG)

A large tree was blown down blocking Highway 44 west of Taylorsville.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

154 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Central Boyle County Perryville 24 1908EST 0 0 Thunderstorm Wind (52EG)

A trained spotter reported wind gusts estimated at 60 mph as well as pea sized hail.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mercer County 1 W Stringtown 24 1916EST 0 0 Thunderstorm Wind (52EG)

Scattered power outages were reported in the town of Harrodsburg. A tree fell across a city street as well.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mercer County Salvisa 24 1916EST 0 0 Thunderstorm Wind (52EG)

Damage to several structures including a tobacco barn and a fence row near Salvisa.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mercer County 1 NE Mc Afee 24 1925EST Ebenezer 1928EST 1.75 50 0 0 Tornado (EF1)

An EF-1 tornado was confirmed in Mercer County with maximum winds estimated at 90 mph. The tornado touched down at 2025EDT near McAfee along Route 127. It traveled 1.75 miles northeast before dissipating near Ebenezer. This tornado was EF-0 for most of its length, but EF-1 damage was observed neat Patterson Lane.

Jessamine County 1 S Pollard 24 1930EST 0 0 Thunderstorm Wind (52EG)

A trained spotter reported small trees and large limbs down. Wind gusts were estimated to be around 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mercer County 1 N Harrodsburg Arpt 24 1930EST 0 0 Thunderstorm Wind (56EG)

A tobacco barn was destroyed and numerous large trees were blown down.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Fayette County 2 ESE Lexington 24 1952EST 0 0 Thunderstorm Wind (52MG)

A 52 knot gust was measured at the LEX ASOS. Note: The measured wind gust of 52 knots is equivalent to 60 mph. Russell County 1 SW Eller 24 2031CST 0 0 Thunderstorm Wind (52EG)

Russell county dispatch reported a tree down on Highway 619 north between Jamestown and Russell Springs. The road department had to be called to remove the tree. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Clinton County Cumberland City 24 2055CST 0 0 Thunderstorm Wind (52EG)

Clinton county dispatch reported that tree limbs were down in Cumberland City. The fire department had to be called to remove a tree and tree limbs from a roadway in Cumberland City.

A severe squall line developed in advance of an occluded front moving across central Kentucky. This squall line produced widespread wind damage across south central Kentucky and into the Bluegrass region. In addition, two brief tornadoes touched down in Mercer and Edmonson counties. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

155 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Eastern KYZ044-079-083- Fleming - Lee - Owsley - Pulaski - Wayne 111-114 03 0845EST 1158EST 0 0 11.0K 0.00K Strong Wind

A strong pressure gradient associated with a powerful cold front caused strong winds to blow throughout the day across eastern KY on April 3rd. Damage occurred across several counties due to these winds between 10 am and 1 pm on this day.

Fleming County Flemingsburg 05 1830EST 1835EST 0 0 0.00K 0.00K Hail (1.75)

Golf ball size hail reported in Flemingsburg. Fleming County Flemingsburg 05 1830EST 1836EST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail reported in Flemingsburg. Fleming County Cowan 05 1910EST 1915EST 0 0 0.00K 0.00K Hail (1.75)

Golf ball size hail was reported in Cowan. Fleming County Nepton 05 1915EST 1920EST 0 0 0.00K 0.00K Hail (1.75)

Golf ball size hail fell in Nepton. Fleming County Ewing 05 1935EST 1940EST 0 0 0.00K 0.00K Hail (1.75)

Golf ball size hail fell in Ewing between 835 and 840 pm. Fleming County Muses Mills 05 1940EST 1944EST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail fell in Muses Mills. Rowan County Waltz 05 1944EST 2000EST 0 0 0.00K 0.00K Hail (1.75)

Golf ball size hail was reported north of a line from Waltz to Triplett between 844 and 900 pm.

Scattered severe thunderstorms formed ahead of an approaching cold front on April 5th. The hail ranged in size from nickels to golf balls in both Fleming and Rowan counties.

Floyd County Martin 08 0920EST 0925EST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)

Three trees were blown down in Martin. Two of the trees were downed on KY 3382 and another was blown down on KY 550.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Martin County 2 NE Inez 08 0940EST 0945EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

A tree was blown down on Route 908 near Inez. Isolated severe thunderstorms brought down several trees in Floyd and Martin counties during the late morning hours of April 8th. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

156 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Eastern KYZ050-052-058- Bell - Breathitt - Elliott - Estill - Floyd - Harlan - Jackson - Johnson - Knox - Laurel - Lee - Letcher - 068>069-079>080- Magoffin - Martin - McCreary - Montgomery - Morgan - Owsley - Pike - Powell - Pulaski - Rockcastle - 083>088-104-106> Rowan - Wayne - Whitley - Wolfe 112-114-118>120 10 0500EST 1200EST 0 0 0.00K 0.00K Frost/Freeze

High pressure brought calm winds and clear skies to the eastern Kentucky coalfields during the overnight and early morning hours of April 10th. This synoptic pattern created ideal conditions for a widespread hard freeze. Cooperative weather observer reports and various surface observations from April 10th revealed that a widespread freeze did indeed occur in 26 of the 33 counties in the Jackson weather office county warning area.

KYZ044-050>052- Bath - Bell - Breathitt - Clay - Elliott - Estill - Fleming - Floyd - Harlan - Jackson - Johnson - Knott - Knox 058>060-068>069- - Laurel - Lee - Leslie - Letcher - Magoffin - Martin - McCreary - Menifee - Montgomery - Morgan - 079>080-083>088- Owsley - Perry - Pike - Powell - Pulaski - Rockcastle - Rowan - Wayne - Whitley - Wolfe 104-106>120 18 0500EST 1200EST 0 0 0.00K 0.00K Frost/Freeze

High pressure brought calm winds and clear skies to the eastern Kentucky coalfields during the overnight and early morning hours of April 18th. This synoptic pattern created ideal conditions for widespread frost. Cooperative weather observer reports and various surface observations from April 18th revealed that widespread frost did indeed occur across the entire 33 county area.

19 0500EST 1200EST 0 0 0.00K 0.00K Frost/Freeze

KYZ050>052-058> Bath - Bell - Breathitt - Clay - Elliott - Estill - Floyd - Harlan - Jackson - Johnson - Knott - Knox - Laurel - 060-068>069-079> Lee - Leslie - Letcher - Magoffin - Martin - McCreary - Menifee - Montgomery - Morgan - Owsley - Perry 080-083>088-104- - Pike - Powell - Pulaski - Rockcastle - Rowan - Wayne - Whitley - Wolfe 106>120 19 0500EST 1200EST 0 0 0.00K 0.00K Frost/Freeze

High pressure brought calm winds and clear skies to the eastern Kentucky coalfields during the overnight and early morning hours of April 19th. This synoptic pattern created ideal conditions for widespread frost. Cooperative weather observer reports and various surface observations from April 19th revealed that widespread frost did indeed occur across the entire 33 county area. Pulaski County Ferguson 24 2215EST 2220EST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

A trained spotter reported wind gusts estimated at 60-70 mph 1/2 mile north of Somerset.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Estill County Irvine 24 2300EST 25 0000EST 0 0 3.00K 0.00K Thunderstorm Wind (53EG)

Between 1130 pm and midnight EST, many tents were blown down at the Mushroom Festival in Irvine.

Note: The estimated wind gust of 53 knots is equivalent to 61 mph. Whitley County Grove 24 2305EST 2310EST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail fell in Grove. Whitley County Corbin 24 2315EST 2320EST 0 0 0.00K 0.00K Funnel Cloud

Several people reported seeing a lightning illuminated funnel cloud in Corbin.

157 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Eastern Whitley County Corbin 24 2315EST 2320EST 0 0 0.00K 0.00K Hail (1.75)

Golf ball size hail fell in Corbin. Laurel County Keavy 24 2330EST 2335EST 0 0 10.00K 0.00K Thunderstorm Wind (60EG)

A house partially collapsed after losing its roof in a thunderstorm in Keavy.

Scattered severe thunderstorms form ahead of a strong area low pressure and its associated frontal boundary boundaries. A strong low level jet as strong as 55 kts at times allowed the storms to maintain their potency late between midnight and 1 am on April 24th and 25th. Note: The estimated wind gust of 60 knots is equivalent to 69 mph.

KYZ044-050>052- Bath - Bell - Breathitt - Clay - Elliott - Estill - Fleming - Floyd - Harlan - Jackson - Johnson - Knott - 058>060-068>069- Laurel - Lee - Leslie - Letcher - Magoffin - Martin - McCreary - Menifee - Montgomery - Morgan - 079>080-084>085- Owsley - Perry - Pike - Powell - Pulaski - Rockcastle - Rowan - Whitley - Wolfe 087>088-104-106> 120 28 0500EST 1300EST 0 0 0.00K 0.00K Frost/Freeze

High pressure brought calm winds and clear skies to the eastern Kentucky coalfields during the overnight and early morning hours of April 28th. This synoptic pattern created ideal conditions for widespread frost. Cooperative weather observer reports and various surface observations from April 28th revealed that widespread frost did indeed occur in 31 of the 33 counties in the Jackson weather office forecast area.

KYZ052-060-087- Bell - Breathitt - Elliott - Floyd - Harlan - Johnson - Knott - Lee - Leslie - Letcher - Magoffin - Martin - 104-106>115-117> Menifee - Morgan - Owsley - Perry - Pike - Rowan - Wolfe 120 29 0500EST 1200EST 0 0 0.00K 0.00K Frost/Freeze

High pressure brought calm winds and clear skies to the eastern Kentucky coalfields during the overnight and early morning hours of April 29th. This synoptic pattern created ideal conditions for widespread frost. Cooperative weather observer reports and various surface observations from April 29th revealed that widespread frost did indeed occur in 19 of the 33 counties in the Jackson weather office forecast area.

KENTUCKY, Northeast Carter County Grayson 05 1956EST 0 0 0.00K 0.00K Hail (1.75)

Carter County Grayson 05 1958EST 0 0 0.00K 0.00K Hail (1.00)

Boyd County Rush 05 1959EST 0 0 0.00K 0.00K Hail (1.25)

Carter County Grayson 05 2000EST 0 0 0.00K 0.00K Hail (1.00)

Boyd County Rush 05 2003EST 0 0 0.00K 0.00K Hail (1.25)

Boyd County Catlettsburg 05 2005EST 0 0 0.00K 0.00K Hail (0.75)

Greenup County 1 S Hunnewell 05 2010EST 0 0 0.00K 0.00K Hail (1.50)

158 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Northeast Boyd County Rush 05 2015EST 0 0 0.00K 0.00K Hail (0.88)

After temperatures reached into the upper 70s and lower 80s, along with dew points near 60, showers and thunderstorms formed by late afternoon near a warm front. Some mid level disturbances and a westerly elevated inflow, helped the convection survive well into the night.

KENTUCKY, Northern Robertson County 2 WSW Mt Olivet 05 1740EST 1745EST 0 0 Hail (1.75)

Robertson County 4 NW Kentontown 05 1740EST 1745EST 0 0 Hail (1.00)

Robertson County Mt Olivet 05 1750EST 1755EST 0 0 Hail (0.88)

Owen County Owenton 05 1755EST 1800EST 0 0 Hail (0.75)

Lewis County 4 SE Camp Dix 05 1919EST 1924EST 0 0 Hail (1.50)

Supercells developed along a warm front initially affecting northern Kentucky during the late afternoon hours. Activity increased and developed into multicell clusters as it lifted northeast across the area.

KENTUCKY, Southwest Livingston County Ledbetter 07 1830CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

Pea-sized hail accompanied the wind gust, which was measured at a golf course along the Ohio River.

Note: The measured wind gust of 50 knots is equivalent to 58 mph. Lyon County Kuttawa 07 1847CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

A large sign was blown across Interstate 24. A traffic control barrier was blown onto the road, blocking it.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Hopkins County 3 WNW Madisonville 07 1921CST 1923CST 0 0 15.00K 0.00K Thunderstorm Wind (61EG)

A few miles west of Madisonville, a porch was heavily damaged. The front wall of the porch separated from the foundation, and the porch windows were blown out. At a nearby business, an aluminum roof was ripped off a storage shed. A trained spotter estimated a wind gust of 70 mph. In the city, a couple of power lines were blown down, causing power outages.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Daviess County (OWB)Owensboro Arpt 07 1949CST 1 S Doyle 1956CST 0 0 0.00K 0.00K Thunderstorm Wind (63MG)

A wind gust to 73 mph was measured at the automated weather observing station at the Owensboro airport. A gust of 64 mph was measured at the community college on U.S. Highway 231 near the U.S. 60 bypass.

Note: The measured wind gust of 63 knots is equivalent to 72 mph.

159 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Southwest Christian County 2 W Hopkinsville 07 1952CST 0 0 5.00K 0.00K Thunderstorm Wind (52MG) 3 N Gainsville A mobile storm chase vehicle measured a wind gust of 60 mph on U.S. Highway 68 just west of Hopkinsville. Power lines were blown down on the north side of Hopkinsville, about a mile north of the Pennyrile Parkway interchange with the bypass.

Note: The measured wind gust of 52 knots is equivalent to 60 mph. Daviess County Whitesville 07 2007CST 0 0 0.00K 0.00K Hail (0.75)

The dime-size hail was accompanied by 40 to 50 mph winds. Daviess County Owensboro 07 2245CST 2345CST 0 0 0.00K 0.00K Heavy Rain

Minor flooding occurred in flood-prone neighborhoods. About six inches of standing water covered some streets and low spots.

A cold front trailed south-southwestward from a surface low pressure center over west central Illinois through southeast Missouri. This cold front provided the low level lift for short lines of thunderstorms to develop during the late afternoon. Some breaks in the clouds allowed sunshine to destabilize the atmosphere, but mixed layer capes remained at or below 1000 j/kg due to modest lapse rates and low-level moisture. Surface dew points around 60 degrees pooled along the front. Wind profiles were unidirectional and generally parallel to the front. As a result, the storms were mainly organized into short linear structures with some bowing segments that produced damaging wind.

KYZ001>022 Ballard - Caldwell - Calloway - Carlisle - Christian - Crittenden - Daviess - Fulton - Graves - Henderson - Hickman - Hopkins - Livingston - Lyon - Marshall - McCracken - McLean - Muhlenberg - Todd - Trigg - Union - Webster 09 0300CST 0700CST 0 0 0.00K Frost/Freeze

Surface high pressure brought clear skies and light winds, setting the stage for frost formation. Temperatures bottomed out in the mid to upper 30's in most places. The cold spot was a mesonet site six miles southwest of Mayfield, where the low was 33 degrees. The strawberry crop was the most vulnerable to damage, since most other vegetation was still dormant.

Ballard County Kevil 24 1245CST 5 ENE Ingleside 1345CST 0 0 0.00K 0.00K Heavy Rain

Nearly one and three-quarters inch of rain fell within one hour. Near the McCracken County line, Kentucky 358 was covered with about an inch of flowing water for about 50 yards. Caldwell County Cobb 24 1400CST 1445CST 0 0 0.00K 0.00K Heavy Rain

Three-quarters of an inch of rain fell in 14 minutes. Calloway County Hazel 24 1408CST Hamlin 1423CST 0 0 30.00K 0.00K Thunderstorm Wind (52EG)

Trees were down in the community of Hazel. Numerous large trees were down six miles east-southeast of Murray. Ten to fifteen of the trees were blocking roads. Several power lines were down. Numerous trees were topped in Hamlin.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Trigg County 2 NNW Cadiz 24 1435CST 1440CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Several trees were blown down, blocking roads. A barn was slightly damaged.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

160 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Southwest Christian County 2 E Hopkinsville 24 1500CST 1530CST 0 0 0.00K 0.00K Heavy Rain

Heavy rain and minor road flooding was reported east of Hopkinsville. One inch fell within 15 minutes in the community of Lacey, where some roads were flooded. Hopkins County 4 S Madisonville 24 1500CST 0 0 3.00K 0.00K Thunderstorm Wind (54MG) Earlington A wind gust to 62 mph was measured at the Kentucky mesonet site south of Madisonville. A live power line came down across a road in Earlington. Note: The measured wind gust of 54 knots is equivalent to 62 mph. Christian County 2 SW Pembroke 24 1523CST 1527CST 2 40 0 0 4.00K 0.00K Tornado (EF0)

Several trees or tree limbs were blown down. Minor damage occurred to a home, consisting mainly of gutter damage. The tornado track was mostly across fields. The tornado was photographed near the initial touchdown and was also observed less than one mile from Pembroke. Peak winds were estimated near 75 mph.

Muhlenberg County Powderly 24 1525CST 1550CST 0 0 0.00K 0.00K Heavy Rain

A trained spotter reported 1.05 inches of rain in 40 minutes. Minor road flooding occurred countywide.

Todd County Elkton 24 1525CST 1617CST 0 0 0.00K 0.00K Heavy Rain

Heavy rain produced standing water along many roadways countywide.

Todd County Britmart 24 1525CST Allegre 1530CST 0 0 20.00K 0.00K Thunderstorm Wind (61EG)

Near Britmart, a mobile home was blown off its foundation, and a barn roof was damaged. Near Allegre, a falling tree split a trailer in half. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Daviess County 2 NE Philpot 24 1536CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)

A measured wind gust to 62 mph was reported by broadcast media.

Note: The measured wind gust of 54 knots is equivalent to 62 mph. Muhlenberg County Powderly 24 1544CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter observed branches were breaking off trees.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Christian County 1 SE Kennedy 24 1546CST 1 E Barkers Mill 1552CST 0 0 50.00K 0.00K Thunderstorm Wind (78EG)

The microburst damage extended from along the Kentucky/Tennessee border northeastward to the Todd County border. Many dozens of trees were uprooted or broken. A barn was levelled. Several other barns received moderate to major damage. A few homes suffered minor damage, such as partial loss of shingles and porch damage.

Note: The estimated wind gust of 78 knots is equivalent to 90 mph.

161 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

KENTUCKY, Southwest Todd County 2 WSW South Zion 24 1552CST 4 SE Trenton 1600CST 0 0 75.00K 0.00K Thunderstorm Wind (78EG)

The microburst damage extended from along the Christian/Todd county border northeastward across southern Todd County. Many dozens of trees were uprooted or broken, blocking a few roads. A barn was levelled. Several other barns received moderate to major damage. A few homes suffered minor damage, such as partial loss of shingles and porch damage. Near Trenton, a falling tree destroyed a garage and cars inside. A well-organized upper level low moved east from the central Plains into the Mid Missouri Valley during the day. Very strong winds aloft accompanied this system. A streak of very strong mid level winds punched northeast from the Arklatex region into the Lower Ohio Valley during the afternoon. A low level jet from 50 to 60 knots over the Lower Mississippi Valley nosed into the Lower Ohio Valley. At the surface, a low pressure center tracked from north central Arkansas to near St. Louis by late afternoon. Though surface dew points climbed into the lower to mid 60's, extensive cloudcover along and ahead of a warm front limited instability. The instability was generally weak, characterized by cape values below 1000 j/kg. Note: The estimated wind gust of 78 knots is equivalent to 90 mph.

LOUISIANA, Northeast Madison Parish 1 NE Barnes 23 1150CST 0 0 0.00K 0.00K Hail (1.00)

A potent weather disturbance brought showers and thunderstorms to the region. Some of these storms produced hail up to the size of quarters. Morehouse Parish 1 NE Naff 24 0850CST 0 0 0.00K 0.00K Hail (1.50)

Walnut sized hail was reported just northwest of Beekman. A potent upper disturbance brought severe weather to portions of northeast Louisiana on the morning of the 24th. These storms produced walnut sized hail in Morehouse Parish. This was also the day where an intense supercell thunderstorm produced the long track EF4 tornado, which started just west of Tallulah.

Madison Parish 2 S Quebec 24 1009CST 2 ENE Talla Bena 1025CST 12.35 1500 0 16 35.00M 1.00M Tornado (EF3)

The start of the long-track violent tornado began around 6 miles west of Tallulah, just to the south of I-20. This tornado did not waste any time becoming strong and quite wide as it downed a few high tension truss towers on the south end of I-20. As the tornado crossed the interstate, a tractor-trailer was flipped over and thrown opposite of the initial traveling direction. The driver of the truck was injured as this occurred. The tornado then traveled quickly northeast and crossed Highway 80 and Willow Bayou Road, just to the northwest of Tallulah. Here, several homes were heavily damaged along with several vehicles and tractors damaged. The tornado continued to the northeast and crossed Highway 65 and then tracked across the Mississippi River and into far northwest Warren County at Eagle Lake. This tornado destroyed a chemical plant near Highway 65 and the Mississippi River levee, in the community of Omega. A few rail cars were rolled off the track at this location and a large crane was flipped over and destroyed. Several storage tanks were severely damaged as well at this location. The tornado produced mainly EF3 and EF2 damage across Madison Parish with maximum winds around 155 mph. Timber and power line damage along the path was substantial with dozens of power lines taken down along with thousands of trees snapped and uprooted.

During the midday hours of April 24th, an intense supercell thunderstorm produced a violent, long track tornado, which ripped a path across the center of the NWS Jackson, MS forecast area. This tornado touched down just south of I-20, west of Tallulah, in Madison Parish. The tornado intensified quickly and became large as it tracked at a fast pace to the northeast. The tornado moved at roughly 55 mph and was on the ground for 149 miles. The actual time on the ground was 2 hours and 44 minutes. The tornado touched 9 counties along it's path with the most significant damage occurring in Madison Parish, Warren, Yazoo, Holmes, Attala and Choctaw Counties. A great deal of the damage was in the EF2 and EF3 range with a couple locations of EF4 damage in Yazoo and Holmes Counties. Maximum winds peaked around 170 mph. Overall, 10 fatalities occurred along with 146 injuries. Five fatalities occurred in Choctaw County, 4 in Yazoo County and 1 in Holmes County. This long track tornado ranks as the 4th longest in Mississippi history at 149 miles. It is the widest known tornado with a maximum width of 1.75 miles. It also ranks as the 9th deadliest tornado with 10 fatalities.

162 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

LOUISIANA, Northeast

Debris from a destroyed home off Willow Bayou Road, northwest of Tallulah, LA. Damage occurred from the April 24th, 2010, long-track EF-4 tornado. Photo courtesy of NWS Jackson, MS. Madison Parish 1 SE Tallulah 24 1015CST 0 0 50.00K 0.00K Thunderstorm Wind (53EG)

Several trees were blown down across Tallulah. One tree was down through a house. This wind occurred from the rear flank downdraft of the supercell thunderstorm which produced the long track tornado just outside town.

A potent upper disturbance brought severe weather to portions of northeast Louisiana on the morning of the 24th. These storms produced walnut sized hail in Morehouse Parish. This was also the day where an intense supercell thunderstorm produced the long track EF4 tornado, which started just west of Tallulah. Note: The estimated wind gust of 53 knots is equivalent to 61 mph.

LOUISIANA, Northwest Bossier Parish 1 E Fosters 07 1630CST 0 0 250.00K 0.00K Lightning

A home on Devereaux Street in the Colony Subdivision off of Benton Road was struck by lightning and burned to the ground.

De Soto Parish 2 SSW Frierson 07 1836CST 0 0 0.00K 0.00K Hail (0.75)

On April 7th, beginning around noon, thunderstorms producing pea sized hail developed along a line from DeQueen, Arkansas to Tyler, Texas. This convection was aligned along a cold front moving east across the region. Reports of wind gusts at Texarkana around 300 pm were as high as 49 knots. Most of the convection began initiating as a shortwave trough intercepted the cold front. These two factors combined with surface dewpoint values in the 60s, resulted in moderate instability across the region and temperatures were cold enough aloft for the development of hail.

Natchitoches Parish 1 E Campti 23 0945CST 0 0 0.00K 0.00K Hail (0.75)

Ouachita Parish 1 SW Lakeshore 23 1136CST 0 0 0.00K 0.00K Hail (1.75)

Quarter to golfball sized hail was reported off of Riverside Drive in Monroe, Louisiana.

163 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

LOUISIANA, Northwest Claiborne Parish 2 ENE Oaks 23 1200CST 0 0 0.00K 0.00K Hail (1.00)

Hail fell near a service station along U.S. Hwy. 79. A disturbance moving ahead of a strong upper level storm system generated scattered thunderstorms on the 23rd. Some storms reached severe limits producing large hail. A few supercells showed some rotation...but the storms were slightly elevated and no tornadoes were reported.

Caddo Parish 1 S Jewella 24 0425CST 0 0 0.00K 0.00K Hail (1.25)

Hail was reported at Bayou Bend Drive and Leonard Road. De Soto Parish 1 N Stonewall 24 0425CST 0 0 0.00K 0.00K Hail (1.50)

Union Parish 1 W Marion 24 0435CST 0 0 0.00K 0.00K Hail (1.00)

Caddo Parish 1 S Jewella 24 0439CST 0 0 0.00K 0.00K Hail (1.00)

Hail fell in the southeast side of town. Caddo Parish 2 SSE Lucas 24 0440CST 0 0 0.00K 0.00K Hail (1.00)

Bossier Parish 2 NNW Curtis 24 0445CST 0 0 0.00K 0.00K Hail (0.88)

Hail was reported just north of Taylortown. Webster Parish 1 S Goodwill 24 0505CST 0 0 0.00K 0.00K Hail (2.75)

Union Parish 4 E Cooley 24 0540CST 0 0 0.00K 0.00K Hail (1.25)

Union Parish 3 SE Truxno 24 0557CST 0558CST 0.54 70 0 0 0.00K 0.00K Tornado (EF0)

The National Weather Service conducted a storm survey in Union Parish, Louisiana, and concluded that storm damage was the result of an EF0 tornado. The tornado touched down at around 6:57 AM CDT, about 7 miles west of Marion along Game Reserve Road, knocking down a few trees along the road and in the forest nearby. No structural damage was observed. Maximum winds are estimated at 60-70 mph.

Sabine Parish 3 NNW Loring 24 0623CST 0 0 0.00K 0.00K Hail (1.00)

Natchitoches Parish 2 NNE Marthaville 24 0635CST 0 0 0.00K 0.00K Hail (2.50)

Hail was reported approximately 3 miles north of Marthaville, Louisiana.

Sabine Parish Clare 24 0645CST 0 0 0.00K 0.00K Hail (1.75)

Hail was reported by a fisherman on Toledo Bend Reservoir.

164 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

LOUISIANA, Northwest Jackson Parish 1 SW Hodge 24 0740CST 0 0 0.00K 0.00K Hail (1.00)

Winn Parish 1 W Winnfield 24 0805CST 0 0 0.00K 0.00K Hail (0.75)

A disturbance moving ahead of a strong upper level storm system generated scattered thunderstorms on the 23rd. Some storms reached severe limits producing large hail. A few supercells showed some rotation...and tornadoes were reported across portions of southwest Arkansas during the evening hours of April 23rd. These storms continued into northwest Louisiana during the early morning hours of April 24th.

LOUISIANA, Southeast Jefferson Parish 1 NNE Bridgedale 23 1351CST 1 ENE Kenner 1600CST 0 0 0.00K 0.00K Flash Flood

Significant street flooding reported on Transcontinental...David Drive...West Metairie and Clearview Roads.

Orleans Parish 1 N New Orleans 23 1358CST 1 W Vieux Carre 1600CST 0 0 0.00K 0.00K Flash Flood

Significant street flooding with streets impassible near the intersection of Tulane Avenue and Jefferson Davis Parkway.

Isolated thunderstorms developed on a lake breeze in the New Orleans Metro area. The storms produced small hail and flash flooding. Livingston Parish Albany 24 0505CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail reported in Albany. Tangipahoa Parish Tickfaw 24 0515CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail reported by Tickfaw Police Department. Tangipahoa Parish Tickfaw 24 0530CST 0 0 0.00K 0.00K Hail (1.75)

Golfball size hail reported in village of Tickfaw. Washington Parish Franklinton 24 0545CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail reported in Franklinton. Washington Parish Bogalusa 24 0845CST 0 0 0.00K 0.00K Hail (1.00)

Former NWS employee reported quarter size hail in Bogalusa. Washington Parish 8 S Bogalusa 24 0900CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail reported 8 miles south of Bogalusa. Severe thunderstorms developed during the early morning hours in advance of a cold front. Hail and high winds were reported with the storms.

165 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

LOUISIANA, Southwest Lafayette Parish 3 ENE Carencro 14 1440CST 0 0 0.00K 0.00K Hail (1.00)

KATC-TV relayed report of pea to quarter size hail northeast of Carencro.

Lafayette Parish 3 ENE Carencro 14 1440CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

KATC-TV relayed report of estimated winds of 60 to 70 mph near Carencro. A large outdoor tent was blown down.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Iberia Parish Coteau 14 1518CST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail was reported by KLFY-TV on Highway 88 in Coteau.

Scattered showers and thunderstorms developed across south-central Louisiana during the afternoon hours on April 14. A few storms were strong to marginally severe, with a few reports of large hail and damaging winds received.

Vernon Parish Anacoco 24 0716CST 0 0 0.00K 0.00K Hail (1.00)

Anacoco Police Department received numerous reports of hail up to quarter size all across the town.

Vernon Parish 1 E Anacoco 24 0720CST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail was reported at the Anacoco Post Office. A few isolated strong to severe thunderstorms developed across interior southeast Texas during the morning hours on April 24. One storm became supercellular as it passed into west-central Louisiana, with a few reports of large hail received. This same supercell thunderstorm eventually moved into northeastern Louisiana and Mississippi where it produced several long-track tornadoes with considerable damage and fatalities.

MAINE, North Penobscot County 1 W Mattawamkeag 01 0015EST 05 0715EST 0 0 0.00K 0.00K Flood

The Mattawamkeag River at Mattawamkeag crested just over a half foot above flood stage. The flooding was minor...affecting only low lying wooded areas along the river. A combination of heavy rain and melting snow caused the Mattawamkeag River at Mattawamkeag to rise slightly above flood stage. The river gradually rose above flood stage during the early morning hours of the 1st. The river crested just over a half foot above flood stage during the afternoon of the 2nd. The river slowly fell thereafter...falling below flood stage during the morning of the 5th. The flooding was minor...affecting only low lying wooded areas along the river.

MAINE, South Kennebec County 1 W Augusta 01 0000EST 2012EST 0 0 0.00K 0.00K Flood

Heavy rain caused flooding on the Kennebec River at Augusta (flood stage 12.0 ft) which began on the 30th of March and continued through much of the 1st of April. The river crested at 14.3 ft.

Heavy rain which fell during a storm at the end of March caused flooding on the Kennebec River beginning on the 30th of March. The river remained above flood stage through the 1st of April.

Somerset County 1 SW Norridgewock 21 1515EST 1517EST 0 0 0.00K 0.00K Hail (1.00)

An isolated severe thunderstorm produced 1 inch hail in Norridgewock.

166 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MAINE, South

An isolated severe thunderstorm produced 1 inch hail in Norridgewock Maine.

MARYLAND, Central Washington County 1 S Hagerstown 08 1631EST 0 0 3.00K Thunderstorm Wind (50EG)

Multiple trees were down due to thunderstorm winds in Hagerstown.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Anne Arundel County 1 NE Tipton Aaf Arpt 08 1918EST 0 0 1.00K Thunderstorm Wind (50EG)

A large tree was down near Route 32 and 198. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Anne Arundel County 1 WSW Glen Burnie Park 08 1927EST 0 0 Thunderstorm Wind (52EG)

A wind gust was estimated around 60 mph near Glenn Burnie Park.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Anne Arundel County 2 W Elvaton 08 1928EST 0 0 1.00K Thunderstorm Wind (50EG)

A tree was down near Elvaton Road and Foxwell Road. A strong area of low pressure over the Great Lakes slowly tracked to our north on the 8th. The cold front associated with the low moved into the region during the afternoon and evening hours. A moist southerly flow ahead of the front provided instability. The instability combined with the forcing from the front to trigger showers and thunderstorms during the afternoon and evening hours of the 8th. Due to strong winds aloft, some thunderstorms became severe with damaging winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Washington County 1 NNE Pinesburg 16 1440EST 0 0 Thunderstorm Wind (52MG)

A wind gust of 60 mph was measured at a radio station near Conococheague.

Note: The measured wind gust of 52 knots is equivalent to 60 mph. Frederick County 2 SSE Unionville 16 1543EST 0 0 1.00K Thunderstorm Wind (50EG)

A tree was down at Woodville Road and Talbot Run. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Howard County 1 NE Long Corner 16 1547EST 0 0 1.00K Thunderstorm Wind (50EG)

A large tree was down in Lisbon near Shaffersville Road and Long Corner.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Frederick County 2 NNW Johnsville 16 1738EST 0 0 Thunderstorm Wind (52EG)

A spotter estimated wind gusts over 60 mph. A cold front passed through Maryland on the 16th. There was just enough instability ahead of the front for a couple severe thunderstorms that produced strong winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

Frederick County 1 SSE Burkittsville 25 1739EST 0 0 Hail (1.75)

Golf ball size hail was reported in Burkittsville.

167 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MARYLAND, Central Frederick County 1 SE Jefferson 25 1830EST 0 0 Hail (1.00)

Quarter size hail was reported near Jefferson. Carroll County 1 WNW Eldersburg 25 1843EST 0 0 Hail (1.25)

Half dollar size hail was reported in Eldersburg. Montgomery County Beallsville 25 1909EST 0 0 Hail (1.00)

Quarter size hail was reported at the intersection of Route 109 and Route 28 near Beallsville.

Montgomery County 1 SSW Damascus 25 1910EST 0 0 Hail (1.50)

Ping pong size hail was reported about one mile south of Damascus.

Montgomery County 1 SSW Damascus 25 1920EST 0 0 Hail (1.00)

Quarter size hail was reported about one mile south of Damascus.

Howard County 2 ESE Glenelg 25 1938EST 0 0 Hail (1.00)

Quarter size hail was reported near Glenelg. Baltimore County 1 SSW Harewood Park 25 1940EST 0 0 Hail (1.00)

Quarter size hail was reported near Chase. A strong upper-level low slowly tracked through the central portion of the country on the 25th. A southwest flow ahead of this system ushered in warm and humid air. A cold front dropped into the region from the northeast during the afternoon and evening hours of the 25th. The cold front combined with plenty of instability for showers and thunderstorms to develop. Due to plenty of cold air aloft, thunderstorms produced large hail.

St. Mary's County Avenue 26 1708EST 0 0 Hail (1.00)

Quarter size hail was reported near Avenue. A stationary boundary was located over lower southern Maryland. Showers and thunderstorms developed along the boundary. There was enough instability just ahead of the boundary for large hail in and isolated thunderstorm.

MARYLAND, Northeast Kent County Chestertown 16 1830EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

The gust front from a severe thunderstorm tore down a couple of trees in Chestertown.

A strong cold frontal passage overnight on the 16th helped trigger strong to locally severe thunderstorms across the northern Delmarva Peninsula during the evening of the 16th. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

Kent County Galena 25 2023EST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail fell in Galena. A stationary front over the Delmarva Peninsula helped trigger strong to locally severe thunderstorms with hail during the evening of the 25th.

168 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MASSACHUSETTS, Central and East Bristol County 3 W North Attleboro 01 0000EST 2 NE North Easton 04 1000EST 0 0 0.00K 0.00K Flood

Four to eight inches of rain fell across Bristol County resulting in several small streams rising above flood stage, including the Mill River in Taunton, the Canoe River at Norton, the Wading River at Norton, and the Segregansett River at Dighton, all of which set records. Basements flooded in Taunton, North Attleboro, Attleboro, Norton, Mansfield, and Acushnet. Numerous streets were closed due to flooding in Taunton, Fall River, Dartmouth, Norton, Dighton, Raynham, Somerset, North Attleboro, Attleboro, Freetown, Westport, Berkley, Mansfield, Rehoboth, and Swansea, including Route 6 in Westport, Interstate 195 at Exit 3 in Swansea, Route 24 in Dartmouth, and Route 140 in Freetown (exit 8). The North Attleboro Town Hall sustained $350,000 worth of damage from flooding and Richards Memorial Library was closed for several weeks after the basement was flooded with water and sewage. A pond at Capron Park Zoo in Attleboro overflowed, threatening zoo buildings. It was able to be pumped out, keeping water out of most of the buildings. One building was flooded with two feet of water, damaging boxes of gift shop items and supplies. Route 44 on the Taunton/Raynham line was closed for the second time in a month due to flooding from the Taunton River. An amphibious vehicle from the Boston Duck Tours was called into service to ferry residents from isolated neighborhoods to nearby supermarkets and pharmacies. One bridge (Wheeler Street) was destroyed and three others damaged in Rehoboth when the Palmer River flooded. Portions of two of the damaged bridges (Danforth and Elm Streets) were undermined and washed away and the Summer Street bridge sustained structural damage. Two people were rescued when they fell into the Palmer River while trying to rescue their dog. They were transported to Rhode Island Hospital. Sixteen year round residents at the Canoe River Camp Ground in Mansfield were evacuated. Three apartment buildings on Riverbank Road in Attleboro were completely surrounded by water overflowing from the Ten Mile River. The Seven Mile River in South Attleboro overflowed its banks, flooding Pitas Avenue, isolating twenty homes. Six structures in North Attleboro were evacuated because of flooding. In hard-hit Fall River: Numerous roads were flooded, including Columbia Street and Mount Hope Avenue. Storm water overwhelmed storm drains, blowing out of the manholes with such force that it ripped up pavement, gravel, and utilities. Twenty nine homes lost power and gas service when the utilities were ripped up. Bricks from sidewalks along Columbia Street floated down Canal and Columbia Streets, collecting in piles on Broadway and Anawan Street. Doran Elementary School was flooded and the sewage treatment plant became overwhelmed with flood waters. A vehicle became stuck in floodwaters, trapping the occupants. Railroad tracks were under water at Interstate 195 and at Route 6. The southbound lanes of Route 24 were closed from President Avenue to Route 195. A 25 foot wide sinkhole developed on Jackson Street. At least 300 people were evacuated from their homes. The mayor declared a state of emergency. In Freetown: 85 school-children were taken to a shelter after flooding made it impossible for buses to take them home. The Assonet Bay Shores neighborhood (home to about 1000 people) was cutoff to regular traffic by floodwaters and the collapse of a Narrows Road/Causeway Road bridge. Eleven students at the Crystal Springs School (a learning center for children and adults with learning disabilities) were stuck at the school for an evening after the bridge collapsed. They were able to be transported back to the main part of the city when two mountain rescue vehicles owned by the state police were dispatched. The vehicles remained in place for several days to transport residents between the neighborhood and the rest of the city. A bridge 20 yards downstream from the Forge Pond Dam crumbled, leaving a four foot gap in Forge Road. Fifteen households in Assonet Village were evacuated as Forge Pond continued to rise. Schools were closed early Tuesday, March 30 and for the day Wednesday, March 31 due to flooding. There were three minor house fires in Mansfield that were the result of floodwaters reaching burners and electrical panels in basements. Damage amounts can be found in the March Storm Data when most of the damage occurred. Rivers and small streams remained in flood into April.

Essex County 1 E Newbury 01 0000EST 1 NW Methuen 05 0700EST 0 0 0.00K 0.00K Flood

169 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MASSACHUSETTS, Central and East

Three to seven inches of rain fell across Essex County resulting in several rivers going into minor flood, including the Spicket River at Methuen and the Merrimack River at Lawrence and at Haverhill. In addition, several small streams rose above flood stage across Essex County, including the Parker River at Byfield and the Ipswich River at Ipswich and South Middleton.

Several streets were closed due to flooding in Peabody, Methuen, Andover, Danvers, Saugus, Gloucester, and Topsfield. Many basements were also flooded. The Mayor of Gloucester reported water pouring in the windows of the police station, as well as water coming into City Hall, some of the schools, and the Rose Baker Senior Center. Minor flooding occurred at the Danvers Electric Division and the Peabody Institute Library.

Two people were injured when a 28 year old woman's car became stranded in a deep puddle on the shoulder of Interstate 95. A Massachusetts state trooper rescued her from her car, cutting his arm on broken glass from the window. Thirteen people in Peabody were hospitalized with carbon monoxide poisoning after an unvented, gasoline powered pump was set up in a basement, emitting noxious fumes to the rest of the building.

Damage amounts can be found in the March Storm Data when most of the damage occurred. Rivers and small streams remained in flood into April. Middlesex County Farm Hill 01 0000EST 1 E Arlington 10 0600EST 0 0 0.00K 0.00K Flood

Four to seven inches of rain fell across Middlesex County resulting in each of the seven gaged mainstem rivers in Middlesex County to rise above flood stage. The Assabet River at Maynard and the Sudbury River at Saxonville both reached major flood with the Sudbury River setting a new flood of record. The Nashua River at East Pepperell, the Shawsheen River at Wilmington, and the Merrimack River at Lowell reached moderate flood. Several small streams rose above flood stage in Middlesex County, including the Aberjona River at Winchester and the Charles River at Waltham. Basements flooded in Stoneham and Billerica. Numerous streets were closed due to flooding in Littleton, Concord, Lexington, Holliston, Shirley, Medford, Natick, Tewksbury, Wilmington, Billerica, Arlington, Framingham, Wayland, Waltham, and Stoneham, including Route 119 at the Littleton/Ayer town line. The basement of the Bacon Free Library in Natick flooded, but did not sustain any damage to its collection. Residents on Circle Drive in Framingham were evacuated after the Sudbury River sent at least a foot of water into most of the houses. Wayland's Pelham Island neighborhood (about 63 homes) was cut off by a tributary to the Sudbury River. The town ran a school bus and then a Boston Duck Tours amphibious vehicle as a shuttle between the neighborhood and a downtown parking lot where residents were asked to move their cars. Several apartments on Linden Street (roughly 30 people) in Waltham were evacuated. In Littleton and Ayer, the five foot diameter culvert that links Spectacle Pond with Gilson Brook collapsed resulting in a build up of water in the pond. It subsequently backed up into a nearby neighborhood. This build up also forced the town of Ayer to shut off its wells by the pond that supply drinking water to most of the town. PanAm Railways halted all freight trains from traveling through the area after the tracks became flooded. Damage amounts can be found in the March Storm Data when the majority of the damage occurred. Rivers and small streams remained in flood into April.

Norfolk County 1 S Wethersfield 01 0000EST 1 SE Harding 09 0400EST 0 0 0.00K 0.00K Flood

Four to six inches of rain fell across Norfolk County, resulting in the Charles River at Dover and the Neponset River at Norwood rising to major flood. Several small streams rose above flood stage across Norfolk County, including the Charles River at Medway which set a record, the Monatiquot River at East Braintree, and the Old Swamp River at South Weymouth.

Many basements were flooded in Norfolk and Westwood. Numerous streets were closed due to flooding in Holbrook, Medfield, Bellingham, Franklin, Westwood, Medway, Norfolk, Walpole, Quincy, Weymouth, and Millis.

In Bellingham, one family was evacuated from a house on Pine Grove Avenue. The Primavera School on Harpin Street also had some flooding. Damage amounts can be found in the March Storm Data when most of the damage occurred. Rivers and small streams remained in flood into April.

170 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MASSACHUSETTS, Central and East Plymouth County 1 SE Stanley 01 0000EST Scituate 05 1300EST 0 0 0.00K 0.00K Flood

Three to eight inches of rain fell across Plymouth County resulting in several small streams rising above flood stage, including the Taunton River at Bridgewater, which set a record, the Indian Head River at Hanover, and the Jones River at Kingston. Several ponds in Lakeville rose out of their banks. At least 35 families were evacuated because of the pond flooding. Schools in Lakeville closed early Tuesday, March 30 and closed for the day Wednesday, March 31 because of the flooding. Two buildings in the Ashley Place condominium complex in Middleborough were evacuated due to flooding. A day care center on Route 28 was also evacuated. A handful of people were evacuated from a multi-family dwelling on Ames Street in Brockton. Many streets flooded (and most were eventually closed) in Wareham, Mattapoisett, Scituate, Bridgewater, Brockton, East Bridgewater, Middleborough, Kingston, and Lakeville, including Route 105 in Middleborough where it passes under Interstate 495 at exit 4. This intersection was eventually closed. Portions of Route 44 in Middleborough were closed due to flooding. Route 18 in Whitman was closed between Routes 27 and 14. A few basements flooded in Marion and some in Norwell were flooded with several feet of water. West Bridgewater High School was closed early Tuesday, March 30 due to flooding that threatened the electrical system at the school. Several sewage treatment plants flooded resulting in raw sewage being discharged into rivers and other bodies of water. Damage amounts can be found in the March Storm Data when most of the damage occurred. Rivers and small streams remained in flood into April.

Worcester County Southbridge 01 0000EST 1 WNW Gardner 02 0400EST 0 0 0.00K 0.00K Flood

Three to seven inches of rain fell across portions of Worcester County, resulting in the Blackstone River at Northbridge rising to minor flood. The Nashua River at Clinton also rose above flood stage. Several roads and basements flooded in Leominster, Fitchburg, Lancaster, Milford, Mendon, Blackstone, Northbridge, and Shrewsbury. Reduced speed limits were imposed on the rail line between Framingham and Worcester. Clinton experienced substantial flooding two weeks prior to this event. The Nashua River at Clinton crested only four tenths of a foot lower than that event. However, because of the recent flooding, many preparations were made in advance of the rainfall. Roughly 10,000 sandbags were made and placed around Clinton with the help of the Massachusetts National Guard. This alleviated some of the damage that likely would have recurred with the three to six inches of rain that fell. Damage amounts can be found in the March Storm Data when most of the damage occurred. Rivers and small streams remained in flood into April.

A low pressure system sat just south of Long Island for two days, bringing heavy rain to much of Southern New England during that time. A persistent southerly low level jet brought very moist air into the area, which resulted in high rainfall rates. A coastal front along the I-95 corridor enhanced rainfall in that area. This event followed a heavy rainfall and record flooding event in mid-March as well as a second lesser rain event about a week prior. Rivers across much of Massachusetts and Rhode Island were still high from those events and warm temperatures in northern Vermont and New Hampshire resulted in a period of snowmelt, that resulted in rises on both the mainstem Connecticut and Merrimack Rivers. All of these factors led to a second record rainfall and flooding event. Two day rainfall totals across Southern New England ranged from an inch to ten inches. Though concentrated in Rhode Island and southeastern Massachusetts, all of Southern New England was affected by the flooding. In Massachusetts, two day rainfall totals ranged from one and a half inches on Cape Cod to nearly eight inches in Bristol County. Providence, Boston, and Blue Hill Observatory in Milton, MA set record monthly precipitation totals during the month of March. Providence also set the record for the wettest month ever in the period of record. Both the Pawtuxet River in Rhode Island and the Sudbury River in Massachusetts set floods of record. Nearly 1000 Massachusetts National Guardsmen were activated to aid in sandbagging and evacuations. President Obama issued federal disaster declarations for seven counties in Massachusetts following the mid-March flooding. After this second round of flooding, residents of the seven counties (Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk, and Worcester) received an automatic extension for filing their state and federal taxes.

171 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MASSACHUSETTS, Central and East Plymouth County 1 W Brockton 22 1337EST 0 0 50.00K 0.00K Lightning

Lightning struck a house on North Main Street, igniting a fire.

Plymouth County Brockton 22 1426EST 0 0 50.00K 0.00K Lightning

Lightning struck a house on Gibbon Street, igniting a fire. Plymouth County Westdale 22 1454EST 0 0 25.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds brought down wires near the intersection of Park Avenue and Route 106.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Middlesex County Cambridge 22 1554EST 0 0 150.00K 0.00K Lightning

Lightning struck a building on Franklin Street, knocking part of the building into the street.

Scattered showers and thunderstorms developed ahead of an approaching cold front.

MAZ007 Eastern Essex 27 2156EST 2300EST 0 0 0.00K 0.00K Storm Surge/Tide

High astronomical tides combined with leftover swells produced isolated minor coastal flooding along the northeast Massachusetts coast.

MAZ005-007-010- Barnstable - Eastern Essex - Eastern Hampden - Eastern Hampshire - Eastern Norfolk - Eastern 014>020-022 Plymouth - Northern Bristol - Southeast Middlesex - Southern Bristol - Suffolk - Western Middlesex - Western Plymouth 29 1209EST 1555EST 0 3 193.0K 0.00K Strong Wind

Low pressure over the Canadian Maritimes produced winds gusts of 40 to 50 mph throughout southern New England, resulting in scattered wind damage.

MICHIGAN, East Oakland County Highland 06 0028EST 0 0 150.00K 0.00K Lightning

Lightning caused a house fire at a home near Duck Lake on Highland Court, leading to extensive electrical and roof damage.

Lightning struck a Highland Township house.

Livingston County 2 SW Brighton Hyne Arpt 06 1056EST 0 0 0.00K 0.00K Hail (1.50)

Livingston County Brighton Hyne Arpt 06 1102EST 0 0 0.00K 0.00K Hail (0.75)

Oakland County 1 NW Milford 06 1105EST 0 0 0.00K 0.00K Hail (1.00)

Oakland County 1 NW Commerce 06 1112EST 0 0 0.00K 0.00K Hail (1.75)

172 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MICHIGAN, East Oakland County 2 S Andersonville 06 1115EST 0 0 0.00K 0.00K Hail (0.75)

Oakland County 1 SE Oakley Park 06 1115EST 0 0 0.00K 0.00K Hail (1.75)

Oakland County 1 W Bloomfield Hills 06 1125EST 0 0 0.00K 0.00K Hail (1.00)

Oakland County 3 SE Eames 06 1130EST 0 0 0.00K 0.00K Hail (0.75)

Oakland County 1 NW Trot Big Beaver Arpt 06 1132EST 0 0 0.00K 0.00K Hail (1.00)

Macomb County 1 N Sterling Hgts 06 1133EST 0 0 0.00K 0.00K Hail (1.00)

Macomb County 1 NNW Sterling Hgts 06 1134EST 1137EST 0 0 0.00K 0.00K Hail (2.25)

Macomb County 3 WNW Mt Clemens 06 1135EST 0 0 0.00K 0.00K Hail (1.75)

Macomb County 1 N Sterling Hgts 06 1135EST 0 0 0.00K 0.00K Hail (1.25)

Macomb County 1 E Waldenburg 06 1140EST 0 0 0.00K 0.00K Hail (1.75)

Macomb County 3 S Waldenburg 06 1140EST 0 0 0.00K 0.00K Hail (1.00)

Macomb County 1 E Waldenburg 06 1145EST 0 0 0.00K 0.00K Hail (1.75)

Penny size hail covered the ground with some golfball size hail as well.

St. Clair County Algonac 06 1155EST 0 0 0.00K 0.00K Hail (1.75)

A warm front approached southern Lower Michigan, leading to numerous hail producing thunderstorms, focused along the M- 59 corridor.

MICHIGAN, Extreme Southwest Cass County 1 NNW Dowagiac Cass Arpt 05 2230EST 1 NNW Marcellus 2240EST 0 0 400.00K 0.00K Thunderstorm Wind (63MG)

An area of scattered damage originated at the Dowagiac airport, with a hangar suffering moderate damage. The wind damage continued to expand with the roof being shifted off a business in the 54000 block of M-51. The remainder of the damage was confined to numerous three to four foot diameter trees being uprooted or snapped, as well as some large branches down. A few of these did fall on a few structure but damage was very limited. Damage for the area is estimated at $400,000.

Note: The measured wind gust of 63 knots is equivalent to 72 mph.

173 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MICHIGAN, Extreme Southwest St. Joseph County 1 W Flowerfield 05 2250EST 2251EST 0 0 0.00K 0.00K Hail (0.88)

St. Joseph County 1 N Three Rivers 05 2300EST 2301EST 0 0 Thunderstorm Wind (55EG)

Trained spotters reported several trees down in the Three Rivers area. One of these fell onto a house. No damage estimate was available. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. St. Joseph County 1 N Three Rivers 05 2302EST 2303EST 0 0 0.00K 0.00K Hail (1.00)

Branch County 1 W Union City 05 2315EST 2316EST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Law enforcement officials reported several trees down in the Union City area.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Branch County 1 W Union City 05 2319EST 2320EST 0 0 0.00K 0.00K Hail (1.00)

Branch County 3 W Union City 05 2339EST 2340EST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Emergency management officials reported the top of a pine tree was broken off and blown onto a road three miles west of Union City. A slow moving warm front, which extended from northern Illinois into far southern lower Michigan, provided the focus for numerous showers and thunderstorms. A few of these storms produced damaging winds of greater than 70 mph and hail to one inch in diameter. Note: The estimated wind gust of 55 knots is equivalent to 63 mph.

MICHIGAN, North

MIZ008 Chippewa 08 0100EST 1400EST 0 0 0.00K 0.00K Winter Weather

Rain developed on the 7th as low pressure approached the Great Lakes region from the southwest. As the low started to exit, cooler air filtered in from the north, and rain changed over to snow. Accumulations were very light in most places, 2 inches or less. However, a small portion of Chippewa County, near and north of a line from Pickford to Paradise, saw 5 to 7 inches of snow. Sault Ste Marie picked up 7.2 inches.

Grand Traverse County 4 SSW Hannah 30 2155EST 2 SE Mayfield 2205EST 0 0 4.00K 0.00K Thunderstorm Wind (52EG)

Trees were downed on West County Line Road southwest of Kinglsey, and on Voice Road northeast of Kingsley.

A bowing line of thunderstorms produced a short path of spotty wind damage. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

174 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MICHIGAN, Upper MIZ011>014 Delta - Dickinson - Menominee - Southern Schoolcraft 07 2100EST 08 0800EST 0 0 0.00K 0.00K Winter Weather

MIZ005 Marquette 08 0100EST 09 0000EST 0 0 0.00K 0.00K Winter Storm

MIZ006 Alger 08 0100EST 2200EST 0 0 0.00K 0.00K Winter Weather

A low pressure system moving from the Plains into Lower Michigan produced moderate to heavy snow over portions of central Upper Michigan from late evening on the 7th through the 8th.

Iron County 1 SW Mineral Hills 30 1650CST 1651CST 0.4 100 0 0 15.00K 0.00K Tornado (EF0)

The tornado touched down just west of Homer Road between Forbes Road and West Mineral Avenue approximately 1.5 miles northwest of Iron River. The tornado uprooted trees and caused some damage to a few out buildings before lifting back off the ground.

Iron County 1 W Iron River 30 1655CST 1656CST 0 0 30.00K 0.00K Thunderstorm Wind (65EG)

Storms uprooted numerous birch trees and caused some roof damage to houses in the Homer area near Iron River.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Ontonagon County 2 WNW Calderwood 30 1715EST 1716EST 0 0 2.00K 0.00K Thunderstorm Wind (60EG)

Numerous trees were snapped off near Bond Falls. Increasing moisture and instability ahead of a cold front advancing from the Northern Plains generated a few severe thunderstorms over portions of Western Upper Michigan on the evening of the 30th. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. MICHIGAN, West Van Buren County Lawton 05 2230EST 1 NE Mattawan Arpk 2240EST 0 0 50.00M Hail (1.25)

Trained spotters across the far southeastern portion of Van Buren county reported hail up to one and a quarter inches in diameter and wind damage. Several trees were blown down and the large wind driven hail resulted in siding damage to homes across that area.

Kalamazoo County 1 W Schoolcraft 05 2242EST 1 NE Vicksburg 2257EST 0 0 125.00M Hail (1.75)

Severe thunderstorm winds in excess of 80 mph and hail up to golf ball size impacted far southwestern and south central Kalamazoo county as a bow echo moved into Schoolcraft east to Vicksburg. The most significant damage occurred across west southwest portions of the town of Schoolcraft, where the siding of the western sides of many homes was shredded by the wind driven large hail. About a dozen irrigation pivots were destroyed and several trees were blown down. A local RV dealership had several of it's vehicles rolled over and damaged. Power lines were blown down and a semi truck was tipped over 1 mile south of downtown Schoolcraft. A wind gust to 79 mph was measured one mile northeast of Vicksburg by a co-op observer with a home weather station a minute before midnight.

175 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MICHIGAN, West

Severe thunderstorms moved into extreme southwestern portions of Southwestern Lower Michigan just prior to midnight on April 5th, resulting in numerous reports of up to golf ball sized hail and winds in excess of 80 mph. The most significant damage occurred across southern Kalamazoo county, especially just west southwest of Schoolcraft.

The siding of many homes in and near Schoolcraft was shredded by wind driven large hail. Ottawa County 2 W Noordeloos 06 0850EST 1 E Holland 0905EST 0 0 Hail (1.50)

A trained spotter reported that one inch diameter hail covered the ground three miles north of Holland. Several trained spotters and a utility company in and near Holland also reported hail ranging from an inch to inch and a half in diameter.

Van Buren County 1 W Breedsville 06 0910EST 0920EST 0 0 Hail (1.00)

A trained spotter three miles northeast of Bangor reported one inch diameter hail, which was corroborated with another report of one inch diameter hail ten minutes later in Breedsville.

Kent County 1 SE Byron Center 06 0912EST 3 WNW Holy Corners 0926EST 0 0 Hail (1.50)

Trained spotters from Byron Center off to the east northeast through Grand Rapids to Dutton reported hail ranging anywhere from three quarters of an inch up to an inch and a half in diameter.

Allegan County Dorr 06 0925EST 0 0 Hail (0.75)

Three quarters inch diameter hail was reported in Dorr. This report was relayed by the broadcast media and the hail lasted for eight to ten minutes. Ottawa County 1 E Holland 06 0930EST 0 0 Hail (1.00)

A trained spotter in Holland reported one inch diameter hail.

176 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MICHIGAN, West Eaton County 1 S Bellevue 06 1004EST 1 SW Charlotte 1012EST 0 0 Hail (0.75)

Hail up to three quarters of an inch in diameter was reported in Bellevue and Charlotte by trained spotters.

Ingham County 1 NW North Aurelius 06 1020EST 0 0 Hail (1.00)

A trained spotter five miles west of Mason measured one inch diameter hail.

A nocturnal mesoscale convective system that developed off to the west across Iowa and northern Illinois during the early morning hours of April 6th rolled into Southwest Michigan during the mid to late morning hours. The strong to severe storms produced numerous reports of large hail in addition to heavy rain and frequent lightning.

Mecosta County Paris 06 2350EST 0 0 Hail (1.00)

Broadcast media from Cadillac reported that at least one inch diameter hail was reported in Paris in Mecosta county.

An isolated severe thunderstorm which impacted portions of Mecosta county produced at least one inch diameter hail in Paris.

MINNESOTA, Central and South Central Martin County 3 WSW Sherburn 12 1459CST 0 0 0.00K 0.00K Hail (0.75)

Martin County 1 SW Manyaska 12 1525CST 0 0 0.00K 0.00K Hail (1.00)

The public reported quarter size hail covering the ground. Martin County 1 SE Manyaska 12 1526CST 0 0 0.00K 0.00K Hail (0.88)

Martin County 5 W East Chain 12 1600CST 1610CST 0 0 0.00K 0.00K Hail (0.88)

Martin County 4 NNE Wilbert 12 1600CST 1612CST 0 0 0.00K 0.00K Hail (1.50)

Martin County 5 ENE East Chain 12 1605CST 0 0 0.00K 0.00K Hail (0.88)

Martin County 3 ENE East Chain 12 1627CST 0 0 0.00K 0.00K Hail (1.00)

Martin County 2 S Imogene 12 1650CST 0 0 0.00K 0.00K Hail (1.50)

Faribault County Blue Earth 12 1715CST 1725CST 0 0 0.00K 0.00K Hail (1.50)

Blue Earth County 1 NNE Garden City Arpt 12 1810CST 1820CST 0 0 0.00K 0.00K Hail (1.75)

The public reported that the hail covered the ground south of Garden City.

177 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MINNESOTA, Central and South Central Blue Earth County 1 N Good Thunder 12 1830CST 0 0 0.00K 0.00K Hail (0.75)

Blue Earth County 3 ENE Beauford 12 1908CST 0 0 0.00K 0.00K Hail (1.75)

Blue Earth County 1 SW St Clair 12 1920CST 0 0 0.00K 0.00K Hail (1.75)

Waseca County 2 WSW Alma City 12 1938CST 0 0 0.00K 0.00K Hail (0.75)

Renville County Sacred Heart 12 2003CST 2005CST 0 0 0.00K 0.00K Hail (0.75)

A sharp edge of marginal instability helped cause an area of thunderstorms to develop along the Minnesota-Iowa border near Jackson, and move eastward during the late afternoon. Wind shear values were around 40 kts, which aided in the development of several long lived mesocyclones that caused hail stones to grow above severe levels. A few of the hail stones grew to golf ball size. Stearns County 1 NE Sauk Centre 30 1920CST 0 0 0.00K 0.00K Hail (0.88)

Stearns County 2 SE Albany 30 1950CST 0 0 0.00K 0.00K Hail (0.88)

Hennepin County Minneapolis 30 2255CST 0 0 0.00K 0.00K Hail (0.88)

A very large storm system moved across the Northern Plains and Upper Midwest. Enough instability caused thunderstorms to develop along the leading edge of a slow moving cold front. Some of the storms produced half inch hail, with the strongest storms producing up to nickel size hail during the late afternoon and evening hours of April 30th.

MINNESOTA, Northeast

MNZ012-019>021- Central St. Louis - Northern Cook/Northern Lake - Southern Cook - Southern Lake - Southern St. 037 Louis/Carlton 01 0000CST 30 2359CST 0 0 0.00K 0.00K Drought

Very little rain fell across the Arrowhead of Minnesota during the month of April. Precipitation totals were only 10 to 25 percent of normal for the month. This lack of rain allowed for severe (D2) drought conditions to develop by the end of the month across Cook, Lake, and far southeastern St. Louis counties, according to the U.S. Drought Monitor.

MINNESOTA, Northwest Kittson County 1 SSE Noyes 01 0000CST 1 NE Caribou 12 1151CST 0 0 0.00K 0.00K Flood

Marshall County 12 WNW Stephen Arpt 01 0000CST 5 WNW Strandquist 14 1300CST 0 0 0.00K 0.00K Flood

Polk County 6 NNW Northland 01 0000CST 10 E Roan 12 1151CST 0 0 0.00K 0.00K Flood

178 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MINNESOTA, Northwest

Water levels remained high through the early part of April, especially along the Red River. One saving grace from even higher water levels was a general precipitation deficit. Between the fourth and the twenty-eighth, there were only two days (12th/13th) with measurable precipitation at the first order climate reporting sites of Grand Forks and Fargo. Even then, only 0.39 inches of rain fell at both cities. The lack of additional moisture allowed the overland flooding to slowly subside.

Marshall County 7 N Grygla 02 0905CST 0 0 Hail (1.00)

The ground was covered with dime to quarter sized hail. Beltrami County 12 NNW Carmel 02 0910CST 0 0 Hail (0.75)

Pea to dime sized hail covered the ground. Roseau County 2 WNW Pencer 02 0915CST 0 0 Hail (1.25)

Nickel to half dollar sized hail covered the ground. Roseau County 5 SW Swift 02 0937CST 0 0 Hail (0.88)

Lake Of The Woods County 26 N Lude 02 1016CST 1018CST 0 0 Hail (0.88)

One to two minutes of dime to nickel sizes hail ended at about 1118 AM CDT at Angle Outpost Resort.

A severe thunderstorm developed in northern Minnesota ahead of a warm front during the morning of April 2, 2010.

MINNESOTA, Southeast Mower County 3 SSW Varco 29 1900CST 0 0 1.50K 0.00K Thunderstorm Wind (56EG)

Law enforcement reported large trees down across Highway 105 six miles south of Austin.

A warm front lifted northward into southern Minnesota during the evening hours of April 29th. Scattered severe thunderstorms developed along the warm front and moved over southeast Minnesota in the evening hours. The thunderstorms knocked trees down onto Highway 105 six miles south of Austin in Mower County. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Houston County Caledonia 30 1223CST 0 0 0.00K 0.00K Hail (0.75)

Houston County 3 WSW River Jct 30 1230CST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Strong thunderstorm winds tore a roof off a shed across the street from the WXOW television station.

A cold front moved across southeast Minnesota in the early afternoon hours of April 30th. Severe thunderstorms developed along the cold front and produced large hail and damaging winds in Houston County. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. MINNESOTA, Southwest Cottonwood County 8 NW Windom 01 0000CST 05 1800CST 0 0 0.00K 0.00K Flood

Continued flooding of the Des Moines River abated and ended during the first few days in April, with the minor flooding affecting a few fields. The river began the month at 1.8 feet above flood stage near Windom, and fell below flood stage there on April 5th.

179 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MINNESOTA, Southwest Jackson County 8 WNW Bergen 01 0000CST 05 1800CST 0 0 0.00K 0.00K Flood

Continued flooding of the Des Moines River abated and ended during the first few days in April, with the minor flooding affecting a few fields. The river began the month at 0.4 feet above flood stage at Jackson, and fell below flood stage there on April 2nd. The minor flooding continued to about April 5th near the northern edge of the county.

Continued flooding of parts of the Des Moines River from March snowmelt abated and ended during the first few days in April.

Rock County 6 N Kenneth 12 0445CST 0 0 0.00K 0.00K Hail (1.00)

Hail the size of quarters and smaller hail covered the ground.

Nobles County 4 W Reading 12 0645CST 0 0 0.00K 0.00K Hail (0.88)

Nobles County 4 W Reading 12 0845CST 0 0 0.00K 0.00K Hail (0.88)

Thunderstorms produced marginally large hail in Rock and Nobles County of southwest Minnesota on the morning of April 12th. Jackson County 1 E Jackson 12 1435CST 0 0 0.00K 0.00K Hail (0.75)

Hail covered the ground. A thunderstorm produced penny size hail at Jackson during the afternoon of April 12th.

MISSISSIPPI, Central Bolivar County 1 S Cleveland 03 0152CST 0 0 30.00K 0.00K Thunderstorm Wind (60EG)

A few power lines and power poles were blown down around Cleveland.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Sunflower County 1 S Rome 03 0200CST 0 0 200.00K 0.00K Lightning

A house was struck by lightning and burned down, resulting in a total loss.

Sunflower County 1 ESE Ruleville 03 0205CST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)

A few power lines were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Sunflower County 1 E Indianola 03 0218CST 0 0 15.00K 0.00K Thunderstorm Wind (50EG)

A few power lines were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Leflore County 1 SE Schlater 03 0220CST 2 SW Minter City 0222CST 0 0 100.00K 0.00K Thunderstorm Wind (78EG)

Wind damage was reported between the city of Schlater and Sunny Side Road. Three snapped power poles, 2 downed trees, an overturned irrigation pivot, and some overturned farm equipment were all noted.

Note: The estimated wind gust of 78 knots is equivalent to 90 mph.

180 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSISSIPPI, Central Leflore County 1 E Money 03 0232CST 0 0 30.00K 0.00K Thunderstorm Wind (62EG)

Some power lines and a few power poles were blown down. Note: The estimated wind gust of 62 knots is equivalent to 71 mph. Leflore County 1 W Greenwood 03 0242CST 0 0 35.00K 0.00K Thunderstorm Wind (60EG)

A few power lines and some power poles were blown down. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Grenada County 1 S Holcomb 03 0246CST 0 0 20.00K 0.00K Thunderstorm Wind (50EG)

A few power lines were reported down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Grenada County 1 S Grenada 03 0258CST 1 WNW Futheyville 0300CST 0 0 115.00K 0.00K Thunderstorm Wind (53EG)

Numerous tree were blown down across town, especially the northwest part. Several power lines were down, along with some trees. A 40x40 section of roof of the medical complex building was torn off.

Note: The estimated wind gust of 53 knots is equivalent to 61 mph. Carroll County 3 S Carrollton 03 0304CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A few trees were blown down near Highway 17. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Montgomery County 1 E Duck Hill 03 0313CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A tree was reported down in Duck Hill. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Montgomery County 1 N Winona 03 0318CST 0 0 35.00K 0.00K Thunderstorm Wind (60EG)

A few power lines and power poles were down. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Choctaw County 4 NE French Camp 03 0356CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Scattered trees and some power lines were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Oktibbeha County 3 NW Bradley 03 0417CST 0 0 10.00K 0.00K Thunderstorm Wind (53EG)

A few trees and some power lines were blown down. Note: The estimated wind gust of 53 knots is equivalent to 61 mph. Scott County 3 NE Pulaski 03 0455CST 0 0 0.00K 0.00K Hail (1.00)

Some quarter sized hail was reported. Scott County 1 SE Forest 03 0505CST 0 0 0.00K 0.00K Hail (0.88)

A weather system brought showers and thunderstorms to the region. Some of these storms brought some wind damage and hail.

181 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSISSIPPI, Central Warren County 3 SSW Eagle Bend 23 1200CST 0 0 0.00K 0.00K Hail (0.88)

Hail occured for around 4 minutes. Warren County Katzenmeyer 23 1215CST 0 0 0.00K 0.00K Hail (1.25)

Rankin County Value 23 1304CST 0 0 0.00K 0.00K Hail (0.88)

Madison County 2 SSW Madison 23 1310CST 1311CST 0 0 0.00K 0.00K Hail (0.88)

Penny to nickel sized hail was reported between Madison and Gluckstadt, and in the Twin Harbors Subdivision.

Washington County 1 E Leland 23 1405CST 0 0 0.00K 0.00K Hail (0.88)

Covington County 4 SW Mt Olive 23 1420CST 0 0 0.00K 0.00K Hail (1.00)

Nickel to quarter sized hail was reported on Leonard Road. Montgomery County 1 NE Kilmichael 23 1420CST 0 0 0.00K 0.00K Hail (0.88)

Covington County 1 NE Mt Olive 23 1425CST 0 0 0.00K 0.00K Hail (1.00)

Nickel to quarter sized hail was reported along Highway 49 in Mount Olive.

Sunflower County 3 S Pollock 23 1426CST 0 0 2.00K 0.00K Hail (1.75)

Golf ball sized hail fell between Indianola and Inverness. Sunflower County 1 SE Milroy 23 1430CST 0 0 0.00K 0.00K Funnel Cloud

Attala County 5 ENE Newport 23 1430CST 1432CST 0 0 0.00K 0.00K Hail (1.00)

Sunflower County 1 NNE Inverness 23 1432CST 0 0 0.00K 0.00K Hail (1.00)

Attala County 4 S Wamba 23 1434CST 0 0 0.00K 0.00K Hail (1.00)

Attala County 3 E Williamsville 23 1443CST 1445CST 0 0 0.00K 0.00K Hail (1.00)

Leflore County 1 NNE Nichols 23 1448CST 2 SE Peteet 1451CST 2 50 0 0 50.00K 0.00K Tornado (EF1)

Several power lines were downed and one power pole was snapped. The tornado touched down near Swiftown and crossed Mississippi Highway 7 near County Road 530.

182 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSISSIPPI, Central Attala County 3 SSE Ethel 23 1455CST 0 0 0.00K 0.00K Hail (1.00)

Leflore County 1 E Morgan City 23 1457CST 0 0 0.00K 0.00K Hail (1.00)

Attala County 5 S Mc Cool 23 1500CST 0 0 0.00K 0.00K Hail (1.00)

Montgomery County 1 NE Kilmichael 23 1529CST 0 0 0.00K 0.00K Hail (1.00)

Carroll County Carrollton 23 1531CST 0 0 0.00K 0.00K Hail (0.88)

Neshoba County 3 NNE Hope 23 1531CST 0 0 0.00K 0.00K Hail (1.00)

Neshoba County 1 SW Sandtown 23 1811CST 0 0 0.00K 0.00K Hail (1.00)

A potent weather disturbance brought showers and thunderstorms to the region. Some of these storms produced hail up to the size of quarters. A tornado occurred on this date as well.

Clay County 6 N Abbott 24 0037CST 0039CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail was reported in the Una Community. Lowndes County 1 S New Hope 24 0225CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail was reported at New Hope. Marion County 8 ENE Columbia Marion Arpt 24 0522CST 0 0 0.00K 0.00K Hail (1.00)

Dime to quarter sized hail was reported at West Improve. Lamar County Sumrall 24 0541CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

An estimated 60 mph wind gust was reported at Sumrall. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Bolivar County 4 NNW Waxhaw 24 0554CST 0 0 0.00K 0.00K Hail (1.00)

Lincoln County 2 S Enterprise 24 0630CST 0 0 0.00K 0.00K Hail (1.00)

Bolivar County 2 ESE Rosedale 24 0653CST 0654CST 0 0 1.00K 0.00K Hail (1.75)

Slightly larger than golf ball sized hail was reported at Rosedale.

Lawrence County 3 N Wanilla 24 0657CST 0 0 0.00K 0.00K Hail (1.00)

183 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSISSIPPI, Central Bolivar County 3 SSE Gunnison 24 0702CST 0704CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail covered the ground at Gunnison. Simpson County 2 SSE Shivers 24 0710CST 0712CST 0 0 15.00K 0.00K Thunderstorm Wind (55EG)

Several trees were blown down along Highway 43 and some sheds were damaged.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Rankin County 2 ESE Rook Hill 24 0711CST 0713CST 0 0 0.00K 0.00K Hail (1.00)

Nickel to Quarter sized hail was reported southeast of Brandon.

Simpson County 2 S Weathersby 24 0725CST 0726CST 0 0 0.00K 0.00K Hail (1.25)

Smith County 2 S Raleigh 24 0742CST 0748CST 0 0 3.00K 0.00K Hail (1.75)

Quarter to Golf ball sized hail was reported at Raleigh. Smith County 1 E Raleigh 24 0742CST 0744CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down at Raleigh. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Smith County 9 SW Raleigh 24 0743CST 0758CST 10.69 50 0 0 40.00K 0.00K Tornado (EF1)

This EF1 tornado had a path length of 10 miles and a width of 50 yards. Many small trees were snapped with a couple large hardwood trees uprooted. Maximum winds were around 95 mph.

Smith County 1 SE Pineville 24 0800CST 0 0 1.00K 0.00K Hail (1.75)

Golf ball sized hail was reported at Pineville. Jasper County 3 NW Moss Hill 24 0822CST 5 NNE Rose Hill 0834CST 9.72 1056 0 0 400.00K 600.00K Tornado (EF2)

This tornado touched down just to the northeast of Montrose near County Road 2414, in Jasper County. This tornado tracked across 3 counties before it dissipated just before it reached Meridian. Along the path, it produced major structural roof damage to a church. Shingles and siding were blown off of a house. An outbuilding was destroyed along with damage to a grain silo. Thousands of large softwood and hardwood trees were snapped and uprooted. In addition, numerous power lines were blown down. This EF2 tornado had a total path length of 23 miles and a width of 0.6 miles. Maximum winds were around 125 mph.

Newton County 7 SSW Chunky 24 0834CST 0840CST 3.63 1056 0 0 200.00K 100.00K Tornado (EF2)

184 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSISSIPPI, Central

This tornado touched down just to the northeast of Montrose near county road 2414, in Jasper County. This tornado tracked across 3 counties before it dissipated just before it reached Meridian. Along the path, it produced major structural roof damage to a church. Shingles and siding were blown off of a house. An outbuilding was destroyed along with damage to a grain silo. Thousands of large softwood and hardwood trees were snapped and uprooted. In addition, numerous power lines were blown. This EF2 tornado had a total path length of 23 miles and a width of 0.6 miles. Maximum winds were around 125 mph.

Marion County 1 N Columbia 24 0836CST 0 0 50.00K 0.00K Thunderstorm Wind (50EG)

A tree was blown down on a house and a power line was down in Columbia. A shed was also damaged in this area.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lauderdale County 5 SSW Point 24 0840CST 2 SSW (MEI)Key Fld Meridia 0852CST 9.54 1056 0 0 650.00K 300.00K Tornado (EF2)

This tornado touched down just to the northeast of Montrose near County Road 2414, in Jasper County. This tornado tracked across 3 counties before it dissipated just before it reached Meridian. Along the path, it produced major structural roof damage to a church. Shingles and siding were blown off of a house. An outbuilding was destroyed along with damage to a grain silo. Thousands of large softwood and hardwood trees were snapped and uprooted. In addition, numerous power lines were blown down. This EF2 tornado had a total path length of 23 miles and a width of 0.6 miles. Maximum winds were around 125 mph.

Jefferson Davis County 3 ESE Bassfield 24 0841CST Melba 0843CST 0 0 15.00K 0.00K Thunderstorm Wind (60EG)

Numerous trees were blown down southeast of Bassfield. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Lamar County Sumrall 24 0848CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Estimated 60 mph winds were reported at Sumrall. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Lamar County 1 SE Purvis 24 0900CST 0 0 0.00K 0.00K Hail (1.00)

Nickel to quarter sized hail was reported in Purvis. Also some small limbs were blown down.

Lamar County 1 SE Purvis 24 0900CST 0902CST 0 0 150.00K 0.00K Thunderstorm Wind (58EG)

Some trees were blown down along with some damage to a few commercial buildings.

Note: The estimated wind gust of 58 knots is equivalent to 67 mph. Forrest County 4 S Rock Hill 24 0912CST 0914CST 0 0 0.00K 0.00K Hail (1.50)

Forrest County 1 NE Carnes 24 0920CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A couple of trees were blown down across a road in the Carnes Community southeast of Rockhill.

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

185 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSISSIPPI, Central Jones County 1 WNW Laurel 24 0945CST 1030CST 0 0 5.00K 0.00K Flash Flood

Locally heavy rainfall caused drains to back up which resulted in several streets being under water.

Clarke County 5 WNW Shubuta 24 1000CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

A few trees were blown down west of Shubuta. A powerful spring storm system moved across the region on April 24th and brought an outbreak of severe storms and tornadoes to the area. The most powerful and destructive storm during this event was the long track EF4 tornado which ripped a 149 mile path across the forecast area. In addition to this violent tornado, many other storms became severe and produced 5 additional tornadoes along with numerous reports of quarter to golf ball sized hail. Of the 5 tornadoes, 3 of these were strong (EF2) and occurred across, Jasper, Newton, Lauderdale, Oktibbeha, and Clay Counties. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Warren County 5 SW Brunswick 24 1025CST 3 NE Eagle Bend 1032CST 9.93 900 0 2 920.00K 500.00K Tornado (EF2)

The tornado crossed the Mississippi River and entered northwest Warren County at Eagle Lake. Roughly, thirty homes were damaged or destroyed in this area along with 13 mobile homes. In addition to the damaged structures, hundreds of trees were snapped and uprooted along with many power lines taken down. The damage across this part of Warren County was in the EF2 range with maximum winds around 130 mph.

Debris from a destroyed home in the Eagle Lake Community. Damage occurred from the April 24th, 2010, long-track EF-4 tornado. Photo courtesy of NWS Jackson, MS. Issaquena County 6 WSW Hardee 24 1032CST 8 ENE Valley Park 1048CST 15.04 1100 0 0 100.00K 2.00M Tornado (EF2)

The tornado moved into Issaquena County from Warren County and mainly tracked across forested portions of the county. The tornado did track across US Highway 61 just a couple miles south of Valley Park. Thousands of trees were snapped and uprooted along the path with one abandoned agricultural building destroyed. The tornado had EF2 intensity with 130 mph winds across Issaquena County.

186 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSISSIPPI, Central

During the midday hours of April 24th, an intense supercell thunderstorm produced a violent, long track tornado, which ripped a path across the center of the NWS Jackson, MS forecast area. This tornado touched down just south of I-20, west of Tallulah, in Madison Parish. The tornado intensified quickly and became large as it tracked at a fast pace to the northeast. The tornado moved at roughly 55 mph and was on the ground for 149 miles. The actual time on the ground was 2 hours and 44 minutes. The tornado touched 9 counties/parishes along it's path with the most significant damage occurring in Madison Parish, Warren, Yazoo, Holmes, Attala and Choctaw Counties. A great deal of the damage was in the EF2 and EF3 range with a couple locations of EF4 damage in Yazoo and Holmes Counties. Maximum winds peaked around 170 mph. Overall, 10 fatalities occurred along with 146 injuries. Five fatalities occurred in Choctaw County, 4 in Yazoo County, and 1 in Holmes County. As we try and put this tornado into perspective for the state of Mississippi, this long track tornado ranks as the 4th longest in Mississippi history at 149 miles. It is the widest known tornado with a maximum width of 1.75 miles. It also ranks as the 9th deadliest tornado with 10 fatalities, making it the most deadly since November 21st 1992. Lastly, this was the first violent tornado (F4 or greater) in the month of April since April 18th, 1978.

Issaquena County 1 ENE Hardee 24 1044CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

An 80 mph wind gust was reported in the rear flank downdraft from the supercell storm which produced the long track tornado. The storm chasers were positioned along US Highway 61, just north of the Warren/Issaquena County line.

A powerful spring storm system moved across the region on April 24th and brought an outbreak of severe storms and tornadoes to the area. The most powerful and destructive storm during this event was the long track EF4 tornado which ripped a 149 mile path across the forecast area. In addition to this violent tornado, many other storms became severe and produced 5 additional tornadoes along with numerous reports of quarter to golf ball sized hail. Of the 5 tornadoes, 3 of these were strong (EF2) and occurred across, Jasper, Newton, Lauderdale, Oktibbeha, and Clay Counties. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Sharkey County 5 S Lucre 24 1048CST 1053CST 4.33 1100 0 0 0.00K 2.00M Tornado (EF2)

The path of the tornado clipped the far southeast corner of Sharkey County in the Delta National Forest. Considerable damage occurred to the timber along the path as it moved into western Yazoo County. The tornado reached EF2 intensity before moving into western Yazoo County with peak winds around 130 mph.

Yazoo County 5 WSW Enola 24 1053CST 3 NNW Fordyke 1133CST 34.85 3080 4 53 140.00M 4.00M Tornado (EF4)

The tornado moved out of extreme southeast Sharkey County and into west central Yazoo County and gained intensity as it tracked northeast. The tornado caused significant home damage northwest of Satartia, and again as it crossed Highway 3 near the Crupp Community. The tornado then moved through a rural area southwest of Yazoo City, causing major damage or destruction of a number of homes, as well as intense tree damage. As the tornado approached the intersection of US Highway 49 and Highway 16, on the south side of Yazoo City, it reached its widest point and maximum intensity. Here the rating peaked at EF4 with maximum winds around 170 mph. The tornado had a maximum width of 1.75 miles. Several buildings, including a church and several businesses, were totally destroyed. The tornado continued moving through residential areas on the southeast side of Yazoo City, heavily damaging or destroying numerous homes. The tornado continued northeast through rural northeastern Yazoo County before it tracked into Holmes County. A total of four fatalities occurred in Yazoo County. All of the fatalities were individuals who were in mobile homes. F79MH, M64MH, M51MH, F31MH

187 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSISSIPPI, Central

Destroyed church in Yazoo City, MS. Damage occurred from the April 24th, 2010, long-track EF-4 tornado. Photo courtesy of NWS Jackson, MS. Holmes County 2 ESE Zeiglerville 24 1133CST 3 E Durant 1157CST 21.25 2600 1 40 60.00M 4.00M Tornado (EF4)

The tornado continued northeast into rural southern Holmes County, causing intense tree damage and damaging or destroying a number of rural residences. The damage across this area was in the EF3 range. As the tornado moved by the Franklin Community, in rural Holmes county, it again reached EF4 intensity. It completely destroyed two brick homes and heavily damaged or destroyed a number of other homes. The tornado then crossed Interstate 55, causing significant tree damage and blowing a number of vehicles off the road. As the tornado approached the area just south of Durant and crossed US Highway 51, it narrowed and reached one of its weakest points. One fatality occurred in Holmes County. M70MH

Detailed track map with EF scale damage swaths color coded. Segment of the long-track tornado of April 24th, 2010, across LA and MS. Attala County 3 N Boyette 24 1157CST 6 N Mc Cool 1228CST 30.1 1920 0 0 60.00M 4.00M Tornado (EF2)

188 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSISSIPPI, Central

The tornado then moved into western Attala County from just east of Durant in Holmes County. The tornado re-intensified somewhat and began causing significant tree damage in rural western Attala County. The tornado continued across Attala County, causing tree and power line damage,and heavily damaging a number of rural residences, including in the community of Hesterville. The tornado continued to the northeast and crossed the Natchez Trace Parkway. Here numerous trees were damaged and thrown across the Parkway. The maximum intensity in Attala County was EF2 with maximum winds around 130 mph.

Snapped and uprooted trees along Black Road in far northeast Attala County. Damage occurred from the April 24th, 2010, long-track EF-4 tornado. Photo courtesy of NWS Jackson, MS. Choctaw County 2 ESE French Camp 24 1228CST 4 ESE Reform 1250CST 18.25 1883 5 35 90.00M 6.00M Tornado (EF3)

The tornado moved into Choctaw County and crossed Black Road around 128 pm. Here, minor damage occurred to a brick home. Tree damage in this area was more substantial and was in the upper EF2 range. Thousands of trees were uprooted and snapped. Many trees were also splintered in this area. The tornado then crossed Highway 413, just east of French Camp. The tornado reached high end EF3 intensity at this point and produced significant structural damage to a number of structures. Wind speeds ranged from 155 to 165 mph at this location. Three well built brick homes were nearly flattened with only 1 outer wall left standing. Other well built structures sustained major damage to the roof. The Crossroads Grocery was destroyed as the cinder-block structure collapsed on itself. Several vehicles were thrown in this area including at semi-truck. A cell tower was snapped in half. The intense damage continued along the track across Stuart-Weir Road and White Road. Several more structures were severely damaged or destroyed in this area along with significant devastation to timber. Along Pisgah and Dotson Roads, some of the most severe damage occurred and this was the location of the 5 fatalities. Here, dozens of mobile homes and conventional foundation homes were destroyed. Multiple vehicles were thrown with a few landing in trees. The widest part of the tornado was in this general area where it was 1.07 miles wide. The EF3 intensity damage occurred for about 4 miles. The tornado weakened as it tracked toward the Chester Community and crossed Weir-Salem Road and Chester-Mills Road. Here the damage was mostly tree damage with a dozen of homes or so receiving minor to major damage. Some homes had a small portion of roof torn off or shingles peeled away. One well built home was shifted off the foundation with a portion of the back of the home collapsed. Again, timber damage was significant with a large area of pine forest heavily damaged. EF2 damaged was noted there. The tornado continued through Chester and toward Highway 9 and Highway 15. Here mainly EF1 tree damage occurred. The only exception was at and just to the east of the intersection with Highway 9 and Highway 790. Here some low end EF2 tree damage was noted. The tornado then crossed Highway 15 and continued just along and to the south of Macedonia Road. EF1 tree damage occurred in this area as well. The tornado continued into Oktibbeha County just east of of the Reform-Sturgis Road. F0MH, F9OU, F14OU, F58VE, M58VE

189 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSISSIPPI, Central

Destroyed home along Dotson Road in central Choctaw County. Damage occurred from the April 24th, 2010, long-track EF-4 tornado. Photo courtesy of NWS Jackson, MS. Oktibbeha County 5 NNW Sturgis 24 1250CST 5 NNW Bugh 1253CST 2.87 800 0 0 15.00K 20.00K Tornado (EF1)

The tornado moved into west-central Oktibbeha County and tracked along Big Creek Road and Simmons Road before dissipating at Sturgis-Maben Road about 5 miles north of Sturgis. Many trees were snapped and uprooted as the long-track tornado came to an end. During the midday hours of April 24th, an intense supercell thunderstorm produced a violent, long track tornado, which ripped a path across the center of the NWS Jackson, MS forecast area. This tornado touched down just south of I-20, west of Tallulah, in Madison Parish. The tornado intensified quickly and became large as it tracked at a fast pace to the northeast. The tornado moved at roughly 55 mph and was on the ground for 149 miles. The actual time on the ground was 2 hours and 44 minutes. The tornado touched 9 counties/parishes along it's path with the most significant damage occurring in Madison Parish, Warren, Yazoo, Holmes, Attala and Choctaw Counties. A great deal of the damage was in the EF2 and EF3 range with a couple locations of EF4 damage in Yazoo and Holmes Counties. Maximum winds peaked around 170 mph. Overall, 10 fatalities occurred along with 146 injuries. Five fatalities occurred in Choctaw County, 4 in Yazoo County, and 1 in Holmes County. As we try and put this tornado into perspective for the state of Mississippi, this long track tornado ranks as the 4th longest in Mississippi history at 149 miles. It is the widest known tornado with a maximum width of 1.75 miles. It also ranks as the 9th deadliest tornado with 10 fatalities, making it the most deadly since November 21st 1992. Lastly, this was the first violent tornado (F4 or greater) in the month of April since April 18th, 1978.

Oktibbeha County 4 NNW Starkville 24 1309CST 3 N Osborn 1316CST 6.98 800 0 0 650.00K 0.00K Tornado (EF2)

One mobile home was destroyed and 20 homes were damaged along Sun Creek and Mitchell roads. Three power poles were snapped along with numerous trees snapped and uprooted. A barn was also damaged along the path. Maximum winds were around 115 mph.

Clay County 3 SSE Whites 24 1328CST 1330CST 1.87 300 0 0 80.00K 0.00K Tornado (EF2)

This tornado touched down near Barton Ferry Road and tracked northeast for a short distance. Three sets of metal power poles were blown down in a field off Barton Ferry Road. Several trees and power lines were also blown down along with an outbuilding destroyed. Maximum winds were around 115 mph.

190 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSISSIPPI, Central Clay County 1 NE Cedarbluff 24 1338CST 0 0 0.00K 0.00K Hail (1.00)

Oktibbeha County 3 NW Bradley 24 1408CST 0 0 0.00K 0.00K Hail (1.25)

Oktibbeha County 1 NW Patrick 24 1419CST 0 0 0.00K 0.00K Hail (1.25)

Clay County 2 ENE West Pt Mc Charen Ar 24 1437CST 0 0 0.00K 0.00K Hail (1.00)

Winston County 3 SSE Louisville 24 1439CST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail was reported southeast of Louisville. Winston County 5 SE Loakfoma 24 1453CST 0 0 0.00K 0.00K Hail (1.00)

Noxubee County 1 SSE Lynn Creek 24 1501CST 0 0 0.00K 0.00K Hail (1.50)

Lowndes County 3 N Forreston 24 1530CST 1533CST 0 0 10.00K 0.00K Hail (2.50)

Tennis ball sized hail was reported south of New Hope. Noxubee County 2 NE Mc Leod 24 1600CST 0 0 0.00K 0.00K Hail (1.00)

Noxubee County 2 N Aubrey 24 1614CST 0 0 0.00K 0.00K Hail (1.00)

Lauderdale County 2 NE Martin 24 1832CST 1835CST 0.96 100 0 0 150.00K 0.00K Tornado (EF1)

This tornado touched down along Brown Road and tracked across Townsend Byrd Road before moving into Kemper County. Several homes were damaged along Frasier Grove Road as the tornado tracked to the northeast. The tornado also damaged or destroyed 4 barns, a shed, and uprooted numerous medium to large trees. Maximum winds were around 105 mph.

Kemper County 4 SE Rio 24 1835CST 1 SW Klondike 1839CST 3.36 100 0 0 300.00K 0.00K Tornado (EF1)

This tornado touched down along Brown Road and tracked across Townsend Byrd Road before moving into Kemper County. Several homes were damaged along Frasier Grove Road as the tornado tracked to the northeast. The tornado also damaged or destroyed 4 barns, a shed, and uprooted numerous medium to large trees. Maximum winds were around 105 mph.

A powerful spring storm system moved across the region on April 24th and brought an outbreak of severe storms and tornadoes to the area. The most powerful and destructive storm during this event was the long track EF4 tornado which ripped a 149 mile path across the forecast area. In addition to this violent tornado, many other storms became severe and produced 5 additional tornadoes along with numerous reports of quarter to golf ball sized hail. Of the 5 tornadoes, 3 of these were strong (EF2) and occurred across, Jasper, Newton, Lauderdale, Oktibbeha, and Clay Counties.

Carroll County 3 WSW Beatty 30 1900CST 2 NNW Carroll 2010CST 0 0 75.00K 0.00K Flash Flood

Locally heavy rainfall, between 3 and 5 inches, fell around and just east of Vaiden. Several streets around town were flooded along with a few others just outside of town.

191 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSISSIPPI, Central Montgomery County 2 WNW Sibleyton 30 1927CST 0 0 0.00K 0.00K Hail (1.00)

Montgomery County 3 SSE Sibleyton 30 2014CST 3 SW Kilmichael 2110CST 0 0 50.00K 0.00K Flash Flood

Several county roads in and near Kilmichael were flooded. A few of the roads in the city were impassable, and some were washed out.

Image of rainfall totals for the evening of April 30th, 2010, across north-central Mississippi. Webster County 1 ESE Eupora 30 2030CST 3 WNW Pellez 2114CST 0 0 125.00K 0.00K Flash Flood

Numerous roads were flooded across the county with many roads washed out. District 2 was the hardest hit which covers most of the central section of the county. Four to 6 inches of rain was measured in this area.

Webster County 1 N Clarkson 30 2045CST 2052CST 0 0 0.00K Thunderstorm Wind (50EG)

A couple trees were blown down near the Clarkson Community. A warm front pushed north across the region during the afternoon and evening of April 30th. As this occurred, thunderstorms developed across portions of north-central Mississippi and produced locally heavy rainfall and some severe weather. Flash flooding occurred across portions of Carroll, Montgomery, and Webster Counties along with a few occurrences of hail and wind damage. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

MISSISSIPPI, North Panola County 2 ENE Rock Hill 03 0205CST Sardis 0215CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked trees and power lines down along Latham Road between Highway 315 and Ballentine Road. A metal carport was turned over on Peachtree Road near Highway 315. A house on Hemingway Road sustained wall and roof damage. In addition, half of the roof was blown off of the gym at North Panola High School.

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

192 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSISSIPPI, North Tallahatchie County Charleston 03 0220CST Blue Lake 0235CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked down trees and power lines all across Tallahatchie County.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Marshall County Holly Spgs 03 0230CST Potts Camp 0235CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds produced minor roof damage to a house on Hubbard Road between Holly Springs and Potts Camp.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Tippah County Ripley 03 0325CST 0330CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked down trees in Ripley. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Itawamba County 7 SE Fulton 03 0423CST 2 ENE Tilden 0428CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked down trees on Bowen Road, southeast of Fulton.

An upper level disturbance moved through North Mississippi during the early morning hours of April 3rd, 2010. The combination of forcing from the disturbance and an unstable atmosphere set off showers and thunderstorms over the area. Some storms became severe and produced damaging winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

Coahoma County Coahoma 07 1910CST 1915CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked down trees in the town of Coahoma.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Marshall County 1 W Slayden 07 2012CST 2017CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked trees down onto Highway 72 near Slayden.

A cold front moved through the Mid-South during the afternoon and evening hours of April 7th, 2010. Showers and thunderstorms developed out ahead of the front. Some storms became severe producing large hail, damaging winds, and flash flooding. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

MISSISSIPPI, South Harrison County 1 S (GPT)Gulfport Rgnl A 08 0530CST 0 0 15.00K 0.00K Thunderstorm Wind (52EG)

Ballfield at Three Rivers Road Elementary School damaged. Power lines down...bleachers damaged..dugouts damaged...and wooden shed thrown over fence. Storm survey determined straight line winds of 60 mph.

An isolated severe thunderstorm produced wind damage in Harrison County. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Walthall County Tylertown 24 0447CST 0 0 0.00K 0.00K Hail (1.75)

Quarter to golfball size hail in Tylertown. Time estimated based on radar.

193 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSISSIPPI, South Pearl River County 12 NE Poplarville 24 0915CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Power lines down and power outages in and around Maxie. Severe thunderstorms developed in advance of a cold front. The storms produced large hail and high winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. MISSISSIPPI, Southeast George County 1 SE Lucedale 24 0121CST 0123CST 0 0 0.00K 0.00K Hail (0.75)

George County 1 SE Lucedale 24 0121CST 0123CST 0 0 0.00K 0.00K Hail (1.00)

Perry County Mahned 24 0940CST 0942CST 0 0 0.00K 0.00K Hail (1.00)

A strong thunderstorm produced large hail in southeast Mississippi.

MISSOURI, East Ralls County 2 S Perry 04 1910CST 0 0 0.00K 0.00K Hail (0.75)

Ralls County 4 ENE Liberty Hall 04 1921CST 0 0 0.00K 0.00K Hail (0.75)

Pike County 2 E Farmer 04 1940CST 0 0 0.00K 0.00K Hail (1.25)

Pike County 1 SW Bowling Green 04 1942CST 0 0 0.00K 0.00K Hail (0.88)

Boone County 3 ESE Woodlandville 04 1945CST 0 0 0.00K 0.00K Hail (1.00)

Pike County 1 NW Eolia 04 1953CST 1954CST 0 0 0.00K 0.00K Hail (2.00)

Pike County 2 NW Paynesville 04 1956CST 0 0 Hail (1.75)

Golfball sized hail damaged a greenhouse at Clopton High School and also caused siding and roof damage to several buildings on campus. Pike County 1 ESE Paynesville 04 1958CST 1 WSW Annada 2005CST 0 0 0.00K 0.00K Hail (1.00)

Boone County Browns 04 2006CST 0 0 0.00K 0.00K Hail (0.75)

194 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, East Boone County 3 N Columbia 04 2008CST 0 0 0.00K 0.00K Hail (0.88)

Boone County 1 E Columbia 04 2022CST 0 0 0.00K 0.00K Hail (0.75)

Boone County 2 W Deer Park 04 2041CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A large sign was blown down at the intersection of Highway 163 and S. Bennett Drive.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Boone County 1 E Ashland 04 2052CST 0 0 0.00K 0.00K Hail (1.00)

Callaway County 2 SSW Fulton 04 2110CST 0 0 0.00K 0.00K Hail (1.75)

St. Louis County 2 NNE Robertson 04 2243CST 0 0 0.00K 0.00K Hail (1.00) 1 S Wedgewood A strong cold front moved through the region, triggering showers and thunderstorms. Several storms became severe producing large hail and a couple reports of damaging winds.

Warren County 3 NNE Pendleton 23 1740CST 1741CST 0.1 10 0 0 0.00K 0.00K Tornado (EF0)

A tornado briefly touched down in a field. No damage was reported.

Warren County 6 SSE New Truxton 23 1811CST 1812CST 0.12 10 0 0 0.00K 0.00K Tornado (EF0)

A tornado briefly touched down in a field. No damage was reported.

Lincoln County 1 W Hawk Pt 23 1829CST 1830CST 0.21 20 0 0 0.00K 0.00K Tornado (EF0)

A tornado briefly touched down in a field. No damage was reported.

Lincoln County 3 SW Silex 23 1848CST Millwood 1849CST 0.11 10 0 0 0.00K 0.00K Tornado (EF0)

A tornado briefly touched down in a field. No damage was reported.

Moniteau County 3 NW California 23 1910CST 24 0030CST 0 0 0.00K 0.00K Flash Flood

Between 2 and 4 inches of rain fell in a short amount of time causing flash flooding. Numerous roads were flooded including U.S. Highway 50 just west of California and Highway O just north of California. One foot of water was flowing over Parkview Drive in California.

Lincoln County 2 NNE Silex 23 1914CST 1915CST 0.14 10 0 0 0.00K 0.00K Tornado (EF0)

A tornado briefly touched down in a field. No damage was reported.

195 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, East Boone County 3 N Midway 23 2013CST 1 SSE Murry 24 0030CST 0 0 0.00K 0.00K Flash Flood

Between 2 and 4 inches of rain fell in a short amount of time causing flash flooding. Numerous roads were flooded in Columbia. Storms formed south of a warm front and moved north, interacting with the frontal boundary. Some of the storms produced brief tornado touch downs, while others produced very heavy rainfall.

Jefferson County Dittmer 24 1451CST 0 0 0.00K 0.00K Thunderstorm Wind (59MG) Note: The measured wind gust of 59 knots is equivalent to 68 mph.

Jefferson County 1 NW Cedar Hill 24 1455CST 0 0 0.00K 0.00K Hail (0.75)

Jefferson County 1 NW Cedar Hill 24 1455CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Several large tree limbs blown down. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Jefferson County Parkdale 24 1514CST 0 0 0.00K 0.00K Hail (0.75)

Boone County 2 S Englewood 24 1515CST 4 SE Ashland 25 0030CST 0 0 0.00K 0.00K Flash Flood

Between one and three inches of rain fell in a short amount of time on already saturated soils causing flash flooding. Numerous roads were flooded in and around Ashland. Also, several roads in the Sturgeon area were flooded including the intersection of Highway CC and Tri City Lake Road.

Jefferson County 4 SW Arnold 24 1515CST 1517CST 0 0 0.00K 0.00K Hail (1.00)

St. Louis County 1 N St Louis Weiss Arpt 24 1518CST 0 0 0.00K 0.00K Hail (0.88)

St. Louis County Fenton 24 1518CST 1 NNE St Louis Weiss Arpt 1520CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down several large trees, tree limbs and power lines. Some shingles were blown off of roofs, with additional roof damage caused by falling trees and tree limbs.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. St. Louis County 1 NNW Keyes Summit 24 1519CST 1523CST 0 0 0.00K 0.00K Hail (1.00)

St. Louis County Sappington 24 1522CST 0 0 0.00K 0.00K Hail (0.88)

St. Louis County 1 S Rock Hill 24 1525CST 1530CST 0 0 0.00K 0.00K Thunderstorm Wind (65EG)

196 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, East

There was a wide swath of sporadic damage due to thunderstorm winds which occurred over portions of Webster Groves. One area occurred along East Lockwood Avenue. At the Eden Theological Seminary, a large rotted tree was blown down along with several large branches. Several trees were also damaged on the northwest corner of the Webster University campus. Another large tree branch was down near the bus stop at the corner of East Lockwood Ave. and Bompart Avenue. Around three fourths of a mile further north, a large tree fell onto a house near the corner of North Bompart Ave. and Greeley Ave. Two blocks further to the north near the corner of North Bompart Ave. and Clark Ave., a large tree fell on a wooden deck which contained a storage room. A car and the corner of an adjacent house were also damaged. All other damage found during the survey consisted of small downed tree limbs.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. St. Louis County 1 SW Kirkwood 24 1525CST Des Peres 1526CST 0.61 300 0 0 0.00K 0.00K Tornado (EF0)

The tornado touched down approximately 0.3 of a mile north of Dougherty Ferry Road near Lynkirk Rd. and moved north northwest through part of a subdivision. The tornado lifted briefly, then touched down again near the intersection of Ballas Rd. and Kirk Place Dr. before lifting and disspating just east of West County Mall. The path was approximately six tenths of a mile long and a maximum width around 300 yards across part of the subdivision and an average width of less than 200 yards elsewhere. Widespread tree damage and minor roof damage was observed across the subdivision but the overall lack of structural damage suggests winds did not exceed 70 to 80 mph. In the subdivision, several large healthy trees were uprooted and some roofs had missing or damaged shingles. At least one healthy tree was snapped several feet above its base. More extensive tree damage was observed with the second touchdown near Ballas Rd. and Kirk Place Dr. where several healthy pine trees were snapped at the midpoint and the debris pattern indicated a convergent circulation. Tree damage in this area also downed several powerlines along Ballas Road.

St. Louis County 1 WSW University City 24 1530CST 1 ESE Breckenridge Hills 1537CST 4.36 325 0 0 0.00K 0.00K Tornado (EF0)

The tornado initially touched down near the intersection of Duke Drive and Blackberry Avenue in University City. The tornado traveled northwest producing intermittent damage for approximately 0.6 of a mile. The damage became more continuous for the next 2.4 miles from just southeast of Olive Boulevard to near Dawes Place just southeast of Lackland Road. Intermittent damage continued beyond Lackland Road to the northwest for an additional 1.4 miles. The last discernible damage was located near St. Ann Lane. The vast majority of the damage along the path consisted of varying degrees of tree damage which included numerous tree branches broken, trees uprooted, and tree trunks snapped well above their base. The most significant structural damage occurred on Wallis Avenue just north of Trescott Avenue where a three foot diameter tree caved in the corner of a home. The tornado reached a maximum width of 325 yards as it crossed Trescott Avenue. This is also where the damage was most intense with wind speeds estimated at 85 mph. Other notable damage was located near the intersection of Woodson Road and Harney Road where there was roof damage to a storage facility. Minor structural damage was noted at other locations along the path caused by tree limbs or trees falling on homes. Any direct tornadic damage to homes and businesses was minor superficial damage which consisted of siding, soffit and shingles. No injuries were reported.

Cole County Jefferson City 24 1554CST 25 0030CST 0 0 0.00K 0.00K Flash Flood

Up to three inches of rain fell in a short amount of time on already saturated soils causing flash flooding. Numerous roads were flooded including water over a one lane bridge on Meadows Ford Road just south of intersection with Scruggs Station Road.

Shelby County 2 NW Bethel 24 1628CST 1 ENE Sigsbee 25 0030CST 0 0 0.00K 0.00K Flash Flood

Up to three inches of rain fell in a short amount of time on already saturated soils causing flash flooding. Numerous roads were flooded including Highway J about 4 miles east of Bethel. It had between 4 and 6 inches of water flowing over it in several locations.

Montgomery County Montgomery City 24 1634CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds blew down several power lines in town. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

197 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, East Callaway County 2 SE Boydsville 24 1819CST 1 SW Fulton 25 0030CST 0 0 0.00K 0.00K Flash Flood

Up to three inches of rain fell in a short amount of time on already saturated soils causing flash flooding. Numerous roads were flooded including Highway C near South Callaway High School. Also, U.S. Highway 54 had water over it in spots.

Audrain County Laddonia 24 2007CST 4 SSE Vandalia Arpt 25 0030CST 0 0 0.00K 0.00K Flash Flood

Up to three inches of rain fell in a short amount of time on already saturated soils causing flash flooding. Numerous roads were flooded including Highway K east of Laddonia and portions of Highway 19.

A strong storm system moved through the region, triggering showers and thunderstorms. Numerous reports of large hail, damaging winds, tornadoes and flash flooding were reported with this system.

Monroe County 7 N Holliday 30 1520CST 0 0 0.00K 0.00K Hail (0.75)

Lewis County La Grange 30 1600CST 0 0 0.00K 0.00K Hail (0.88)

Crawford County 4 W Cook Station 30 1750CST 1753CST 1.94 100 0 0 0.00K 0.00K Tornado (EF1)

A tornado touched down about 4 miles west of Cook Station and paralled/crossed Highway YY several times before lifting and dissipating about 3 miles west northwest of Cook Station. Damage was observed at the Carr Cemetery and the High Adventure Game Ranch. Damage consisted of snapped and uprooted trees and downed branches. The worst damage was at the Carr Cemetery where a number of large healthy oak trees were snapped just above the base.

Crawford County 1 N Cook Station 30 1754CST 1755CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds blew down several large trees near Highway M about one and a half miles north northeast of Cook Station. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Washington County 3 ENE Richwoods 30 1908CST 1909CST 0.73 100 0 0 0.00K 0.00K Tornado (EF0)

A tornado touched down in eastern Washington county about 4 miles northwest of Fletcher and travelled to the northeast. It blew down several large trees before crossing into Jefferson county, about 3 miles northwest of Fletcher.

Jefferson County 3 NW Fletcher 30 1909CST 1 SW Otto 1940CST 17.6 581 0 0 0.00K 0.00K Tornado (EF1)

The tornado crossed into Jefferson county about 3 miles northwest of Fletcher. The tornado travelled northeast crossing just north of Morse Mill on State Highway B. The tornado continued northeast passing through Lake Tishomingo, finally lifting 1.5 miles southwest of Otto. The tornado snapped and uprooted numerous trees and downed numerous tree limbs along the entire path. There were several areas of more substantial damage. On Brook Hollow Lane, 3 miles north northwest of Fletcher, a home was damaged with part of the roof removed and a wall of the garage destroyed. Also, on Brook Hollow Lane, a manufactured home sustained roof, siding and window damage. Another area of damage was along Highway B just north of the Big River. An outbuilding of the Morse Mill Baptist Church had the overhead doors caved in, which caused the roof to be removed and parts of the exterior walls to fail. The last area of significant damage was at Lake Tishomingo, especially along the north shore. Several of the homes suffered damage to the roofs and porches. Also, a number of homes were damaged when trees fell on them. No injuries were reported.

198 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, East Iron County 4 SSW Annapolis 30 2005CST 2006CST 0.32 50 0 0 0.00K 0.00K Tornado (EF0)

A tornado briefly touched down on a ranch about 4 miles southwest of Annapolis. Numerous large trees were twisted and blown down. One of the trees fell onto a shed causing moderate damage. No injuries were reported.

Madison County 5 NE Silver Mine 30 2030CST 5 WNW Mine La Motte 2035CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds blew down numerous large tree limbs, a few large trees and caused moderate damage to an outbuilding. Part of the roof was blown off and two walls had siding blown off.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. St. Francois County 1 ESE Knob Lick 30 2035CST 2036CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds blew down several large tree limbs in Knob Lick.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Crawford County 3 W Cuba Airstrip Arpt 30 2100CST 1 N Bourbon 2359CST 0 0 0.00K 0.00K Flash Flood

Up to 2 inches of rain fell in a short amount of time on already saturated soils causing flash flooding. Numerous roads were flooded and a small creek in Steelville rose out of its banks blocking access to a bridge in town.

St. Louis County 1 W Twin Oaks 30 2238CST 1 W Oakland 2359CST 0 0 0.00K 0.00K Flash Flood

Up to three inches of rain fell in a short amount of time onto already saturated soils causing flash flooding. Numerous roads were flooded including the southbound lanes Highway 141 under the Interstate 44 overpass, as well as Lewis Road north of Interstate 44. Storms developed ahead of a strong cold front during the afternoon and evening hours. Numerous reports of severe weather were received including large hail, damaging winds and tornadoes.

MISSOURI, Northeast Clark County 1 SW Wyaconda 04 1628CST 0 0 0.00K 0.00K Hail (0.75)

Non-severe hail (<1.0) fell in Wyaconda, MO at 528 pm April 4.

Clark County Kahoka 04 1641CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail fell in Kahoka, MO at 541 pm April 4. Clark County Kahoka 04 1641CST 0 0 0.00K 0.00K Hail (0.88)

Non-severe hail (<1.0) fell in Kahoka, MO at 541 pm April 4. The hail covered the ground to a depth of 1 inch.

Clark County Kahoka 04 1642CST 0 0 0.00K 0.00K Hail (0.75)

Non-severe hail (<1.0) fell in Kahoka, MO at 542 pm April 4.

199 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northeast Clark County Fox City 04 1644CST 0 0 0.00K 0.00K Hail (0.88)

Non-severe hail (<1.0) fell about 5 miles east of Kahoka, MO at 544 pm April 4.

Clark County Wayland 04 1645CST 0 0 0.00K 0.00K Hail (0.75)

Non-severe hail (<1.0) fell in Wayland, MO at 545 pm April 4.

Clark County 1 SE Alexandria 04 1700CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Wind gusts were estimated to be 65 mph in Alexandria, MO at 600 pm April 4.

Skies were mostly cloudy on Easter Sunday as an upper level disturbance crossed the region during the afternoon and early evening hours. The system triggered several severe thunderstorms across the area. One severe storm produced quarter sized hail and wind gusts estimated to be 65 mph as it tracked across Clark County between 530 pm and 6 pm. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Scotland County 1 SSW Memphis Arpt 30 1130CST 0 0 0.00K 0.00K Hail (0.75)

Non-severe hail (<1.0) fell about 3 miles west of Memphis, MO at 1230 pm April 30.

Showers and thunderstorms moved northeastward across the area April 30th, as a cold front pushed into central Iowa. Non- severe hail up to the size of a penny was reported in parts of northeast Missouri.

MISSOURI, Northwest Clay County 1 N Missouri City 02 0845CST 0 0 10.00K 0.00K Thunderstorm Wind (74EG)

Thunderstorm wind gusts to 85 mph were estimated in Missouri City. Numerous tree limbs were snapped and power lines were reported down. Note: The estimated wind gust of 74 knots is equivalent to 85 mph. Platte County 1 S Platte City 02 0845CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A thunderstorm wind gust was estimated around 60 mph, near the I-29 and Highway 92 intersection.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Platte County (MCI)Ks City Intl Ar 02 0846CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)

Thunderstorm wind gust was measured at 62 mph, at the Kansas City International Airport.

Note: The measured wind gust of 54 knots is equivalent to 62 mph. Platte County 1 W Riverside 02 0848CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Thunderstorm winds were estimated near 70 mph. Tree limbs were broken and small trees were blown over.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Jackson County 2 E Grandview 02 0853CST 0 0 2.00K 0.00K Thunderstorm Wind (61EG)

A telephone pole was snapped in two, at High Grove Road and Raytown Road in Blue Springs, near the entrance of O'Donnell Park. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

200 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northwest Platte County 1 S Platte City 02 0855CST 0 0 2.00K 0.00K Thunderstorm Wind (61EG)

Power lines were reported down at I-29 and Highway 92. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Platte County 2 WNW (MCI)Ks City Intl Ar 02 0855CST 0 0 3.00K 0.00K Thunderstorm Wind (56EG)

Kansas City International Airport had signs with concrete bases blown over.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Platte County 2 WNW (MCI)Ks City Intl Ar 02 0857CST 0 0 2.00K 0.00K Thunderstorm Wind (61EG)

Winds estimated up to 70 mph, caused three semi tractor trailers to be blown over, at the intersection of I-29 and Mexico Avenue. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Jackson County 1 E Unity Vlg 02 0858CST 0 0 2.00K 0.00K Thunderstorm Wind (61EG)

A large piece of sheet metal was blown across I-470, and two cars were blown off the road.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Buchanan County 1 S St Joseph 02 0900CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A tree was blown over, in winds estimated up to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Clay County 1 ENE Bigham Hgt 02 0900CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunerstorm wind gusts were estimated up to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Clinton County 1 SE Gower 02 0900CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Thunderstorm winds were estimated to gust near 70 mph. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Jackson County Lees Summit 02 0901CST 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 1 SW Grain Vly 02 0905CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Tree limbs were reported down with power out. Lawn furniture was blown across the street.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. De Kalb County 2 E Osborn 02 0910CST 0 0 5.00K 0.00K Thunderstorm Wind (61EG)

Ten power poles were snapped off along Highway 36 near Osborn.

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

201 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northwest Clinton County Lathrop 02 0925CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Thunderstorm wind gusts to 70 mph were estimated in downtown Lathrop.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Gentry County Albany 02 0930CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

A machine shed was severely damaged, in thunderstorm wind gusts estimated up to 60 mph. Some of the debris was carried a half mile downwind. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Gentry County 3 ESE Pinhook 02 0933CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)

A barn roof was reported to be peeled off. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Caldwell County 1 N Hamilton 02 0935CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

Semi tractor trailer was blown off the road, near the junction of Highway 36 and Highway 13 in Hamilton.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Daviess County 4 W Gallatin 02 0938CST 0 0 3.00K 0.00K Thunderstorm Wind (61EG)

Boats were reported to be blown over at Lake Viking. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Daviess County 1 SE Gallatin 02 0940CST 0 0 45.00K 0.00K Thunderstorm Wind (52EG)

A chimney was reported collapsed and several roofs were blown off buildings.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Daviess County 1 SE Gallatin 02 0945CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

A barn was blown down along Business Highway 6. A two foot diameter tree was also uprooted.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Daviess County 1 E Jamesport 02 0945CST 0 0 1.00K 0.00K Thunderstorm Wind (70EG)

Thunderstorm winds were estimated up to 80 mph. Sheds were reported overturned.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Harrison County 1 WSW Bethany 02 0950CST 0 0 25.00K 0.00K Thunderstorm Wind (61EG)

Numerous buildings were reported to have lost roof vents in town. Numerous sheds were also blown over throughout Bethany.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Grundy County 5 WSW Laredo 02 1000CST 0 0 1.00K 0.00K Thunderstorm Wind (61EG)

An abandoned mobile home had a roof blown off, with debris scattered about 100 yards. Several tree limbs were snapped off.

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

202 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northwest Grundy County 3 SE Trenton Arpt 02 1000CST 0 0 0.10K 0.00K Thunderstorm Wind (61EG)

A metal flag pole was bent over by thunderstorm wind gusts to 70 mph. A large tree was snapped off on Highway 65.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Mercer County 1 NNE Princeton Kaufman Ar 02 1007CST 0 0 15.00K 0.00K Thunderstorm Wind (60EG)

A farm building roof collapsed from thunderstorm winds, estimated up to 60 mph.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Mercer County 1 W Princeton 02 1007CST 0 0 20.00K 0.00K Thunderstorm Wind (61EG)

The west side of a truck shop, on the north side of town was destroyed. There was also roof damage and multiple tree limbs down, reported across town. A strong cold front moved through the area during the morning hours of April 2, 2010. This cold front generated a line of strong to severe thunderstorms. There were numerous reports of damaging winds. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Bates County 1 W Amsterdam 02 1840CST 0 0 0.00K 0.00K Hail (0.75)

A thunderstorm produced hail in Bates County, April 2, 2010.

Howard County 2 NNE Hilldale 04 0844CST 0 0 0.00K 0.00K Hail (0.75)

A strong thunderstorm produced penny sized hail, in the early morning hours of April 5, 2010.

Clay County 1 ESE North Kansas City 04 1548CST 0 0 0.00K 0.00K Hail (0.75)

Clay County 3 NNW Stockdale 04 1549CST 0 0 0.00K 0.00K Hail (1.50)

Clay County 2 WNW Liberty Mitchell Arp 04 1556CST 0 0 0.00K 0.00K Hail (0.75)

Clay County 3 NNW Stockdale 04 1559CST 0 0 0.00K 0.00K Hail (1.50)

Clay County 1 SE Kearney 04 1600CST 0 0 0.00K 0.00K Hail (1.00)

Clay County 2 E Smithville 04 1604CST 0 0 0.00K 0.00K Hail (0.75)

Clay County 4 N Excelsior Spgs 04 1609CST 0 0 0.00K 0.00K Hail (1.25)

Ray County 2 SE Vibbard 04 1622CST 0 0 0.00K 0.00K Hail (1.25)

Ray County 1 NW Knoxville 04 1629CST 0 0 0.00K 0.00K Hail (1.75)

203 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northwest Clay County Excelsior Spgs 04 1633CST 0 0 0.00K 0.00K Hail (0.88)

Ray County 2 NW Georgeville 04 1634CST 0 0 0.00K 0.00K Hail (1.00)

Ray County Knoxville 04 1647CST 0 0 0.00K 0.00K Hail (0.75)

Linn County 1 N Brookfield 04 1651CST 0 0 0.00K 0.00K Hail (0.75)

Caldwell County 1 N Braymer 04 1655CST 0 0 0.00K 0.00K Hail (1.00)

Carroll County 1 SE Bogard 04 1700CST 0 0 0.00K 0.00K Hail (2.50)

Livingston County 4 SSW Chillicothe Arpt 04 1700CST 0 0 0.00K 0.00K Hail (1.00)

Carroll County 1 E Bosworth 04 1708CST 0 0 0.00K 0.00K Hail (0.75)

Carroll County 1 N Carrollton 04 1709CST 0 0 0.00K 0.00K Hail (1.00)

Carroll County 3 SW Bogard 04 1710CST 0 0 0.00K 0.00K Hail (2.25)

Carroll County 6 WNW Carrollton 04 1722CST 0 0 1.00K 0.00K Thunderstorm Wind (56EG)

A power pole was broken on Highway D near Highway E. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Chariton County 1 S Brunswick 04 1730CST 0 0 0.00K 0.00K Hail (1.00)

Chariton County 1 E Salisbury 04 1747CST 0 0 0.00K 0.00K Hail (0.75)

Macon County 1 N Macon Arpt 04 1747CST 0 0 0.00K 0.00K Hail (0.75)

Chariton County 1 E Salisbury 04 1750CST 0 0 0.00K 0.00K Hail (1.00)

Chariton County 1 E Salisbury 04 1754CST 0 0 0.00K 0.00K Hail (1.75)

Randolph County 1 S Yates 04 1800CST 1810CST 2.41 25 0 0 0.00K 0.00K Tornado (EF0)

EF0 tornado touched down at 1800 CST in rural Randolph County. The tornado continued east over rural areas, before lifting at 1810 CST. Tree damage was the only damage reported.

204 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northwest Randolph County Mt Airy 04 1809CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Thunderstorm winds were estimated to 70 mph, with small trees reported down.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Randolph County 1 SE Higbee 04 1809CST 0 0 4.00K 0.00K Thunderstorm Wind (61EG)

Power poles were reported down. Thunderstorm wind gusts were estimated to 70 mph.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Randolph County 1 SE Renick 04 1813CST 0 0 10.00K 0.00K Thunderstorm Wind (61EG)

An RV was rolled over and destroyed near Renick. Thunderstorm wind gusts were estimated to 70 mph.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Randolph County 4 S Milton 04 1817CST 0 0 0.00K 0.00K Hail (1.00)

Randolph County 1 W Moberly 04 1818CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds were estimated to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Randolph County 1 E Clark 04 1818CST 0 0 5.00K 0.00K Thunderstorm Wind (61EG)

Power poles were reported down, with winds estimated to 70 mph.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Randolph County 1 W Moberly 04 1821CST 0 0 0.00K 0.00K Hail (1.75)

Cooper County 1 WSW Boonville 04 1944CST 0 0 0.00K 0.00K Hail (1.00)

A strong cold front moved across the area, during the late afternoon and early evening hours, of April 6, 2010. Severe thunderstorms generated numerous reports of large hail and damaging winds.

Jackson County 2 WNW Holmes Park 05 0623CST 0 0 0.00K 0.00K Hail (0.75)

Jackson County 1 WNW Raytown 05 0640CST 0 0 0.00K 0.00K Hail (0.75)

Jackson County 1 NNW Lees Summit Arpt 05 0657CST 0 0 0.00K 0.00K Hail (0.75)

Putnam County 3 NW Elko 05 0902CST 0 0 0.00K 0.00K Hail (0.75)

Atchison County 1 E Rockport 05 1053CST 0 0 0.00K 0.00K Hail (1.75)

205 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northwest Atchison County 3 ENE Rockport 05 1055CST 0 0 0.00K 0.00K Hail (1.75)

Atchison County 1 NNE Phelps City 05 1055CST 0 0 0.00K 0.00K Hail (1.75)

Atchison County 1 N Tarkio 05 1102CST 0 0 0.00K 0.00K Hail (1.25)

Nodaway County Elmo 05 1119CST 0 0 0.00K 0.00K Hail (0.75)

Nodaway County 1 N Skidmore 05 1145CST 0 0 0.00K 0.00K Hail (0.88)

Severe thunderstorms produced numerous hail reports across the area, during the morning hours of 4/5/2010.

Holt County 1 S Craig 05 1933CST 0 0 0.00K 0.00K Hail (0.75)

A strong thunderstorm produced penny sized hail in Holt County, in the evening hours of 4/5/2010.

Platte County 1 S Platte City 06 1609CST 0 0 0.00K 0.00K Hail (0.75)

Platte County 1 S Ferrelview 06 1615CST 0 0 0.00K 0.00K Thunderstorm Wind (55MG)

This thunderstorm wind gust was measured just east of KCI Airport, by a trained spotter.

Note: The measured wind gust of 55 knots is equivalent to 63 mph. Clay County 1 SSE Smithville 06 1622CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Clay County 1 SSE Smithville 06 1627CST 0 0 0.00K 0.00K Hail (0.75)

Clinton County 4 WSW Converse 06 1633CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm wind gusts were estimated to 65 mph. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Clay County 1 E Holt 06 1636CST 0 0 0.00K 0.00K Hail (0.75)

Platte County 1 S Platte Woods 06 1652CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds were estimated at 56 knots, at the intersection of Highway 9 and Highway 45.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Clay County 2 WNW Liberty Mitchell Arp 06 1653CST 0 0 0.00K 0.00K Hail (0.88)

206 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northwest Clay County 1 WNW Liberty 06 1655CST 0 0 0.00K 0.00K Hail (0.88)

Nodaway County Conception 06 1655CST 0 0 0.00K 0.00K Hail (0.88)

Platte County 2 E Houston Lake 06 1656CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated at 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Clay County 1 ENE Bigham Hgt 06 1700CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds were estimated to 56 knots. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Clay County 1 ENE Linden 06 1701CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts were estimated at 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Platte County 2 E Houston Lake 06 1701CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm wind gusts were estimated at 56 knots. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Platte County 2 E Parkville 06 1703CST 0 0 0.00K 0.00K Hail (1.00)

Worth County 1 NE Grant City 06 1705CST 0 0 0.00K 0.00K Hail (1.00)

Worth County 1 NE Grant City 06 1712CST 0 0 0.00K 0.00K Hail (1.00)

Worth County 1 N Worth 06 1712CST 0 0 0.00K 0.00K Hail (0.75)

Clay County 3 ESE Kearney 06 1713CST 0 0 0.00K 0.00K Hail (0.75)

Clay County 1 SE Kearney 06 1715CST 0 0 0.00K 0.00K Hail (1.00)

Ray County 1 SW Lawson 06 1715CST 0 0 3.00K 0.00K Thunderstorm Wind (56EG)

Power poles were reported snapped and laying across Highway 69.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Clinton County 4 NE Lilly 06 1718CST 0 0 0.00K 0.00K Hail (0.75)

Ray County 1 NNE Union 06 1728CST 0 0 0.00K 0.00K Hail (0.75)

207 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northwest Ray County 2 S Elmira 06 1730CST 0 0 0.00K 0.00K Hail (0.75)

Caldwell County 3 N Kingston 06 1738CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Winds were estimated up to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Caldwell County 1 S Cowgill 06 1830CST 0 0 0.00K 0.00K Hail (0.75)

Carroll County 3 S Hale 06 2028CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

Thunderstorm wind gust was measured at 53 knots. Note: The measured wind gust of 53 knots is equivalent to 61 mph. Johnson County 2 WNW Bowmansville 06 2225CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds were estimated gusting up to 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Henry County 1 SE Blairstown 06 2230CST 0 0 0.00K 0.00K Hail (0.88)

Severe thunderstorms brought large hail and damaging winds to the area, during the late afternoon and evening hours of April 6, 2010. Platte County 2 E Parkville 07 1446CST 0 0 0.00K 0.00K Hail (1.75)

Platte County Lake Waukomis 07 1453CST 0 0 0.00K 0.00K Hail (0.75)

Platte County 1 S Platte Woods 07 1453CST 0 0 0.00K 0.00K Hail (0.75)

Platte County 2 E Parkville 07 1456CST 0 0 0.00K 0.00K Hail (1.00)

Clay County 1 ENE Linden 07 1512CST 0 0 0.00K 0.00K Hail (1.00)

Clay County 1 ENE Linden 07 1518CST 0 0 0.00K 0.00K Hail (0.75)

Clay County 1 ENE Linden 07 1522CST 0 0 0.00K 0.00K Hail (1.00)

A frontal boundary brought severe thunderstorms with large hail to the area, during the afternoon hours of April 7, 2010.

Randolph County 1 W Moberly 23 1742CST 0 0 0.00K 0.00K Hail (0.75)

A thunderstorm produced penny sized hail, in the late afternoon hours of April 23, 2010.

Buchanan County 2 N Willow Brook 24 0005CST 0 0 0.00K 0.00K Hail (1.00)

208 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northwest Platte County 1 N Edgerton 24 0025CST 0 0 0.00K 0.00K Hail (1.00)

Clinton County 1 SE Gower 24 0035CST 0 0 0.00K 0.00K Hail (1.00)

Platte County (MCI)Ks City Intl Ar 24 0039CST 0 0 0.00K 0.00K Hail (1.00)

De Kalb County 1 ENE Maysville 24 0105CST 0 0 0.00K 0.00K Hail (1.25)

Harrison County New Hampton 24 0142CST 0 0 0.00K 0.00K Hail (0.75)

Daviess County 3 NE Altamont 24 0144CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds estimated up to 60 mph, blew a vehicle off of I-35.

A cold front brought severe thunderstorms to the area, during the early morning hours of April 24, 2010. There were numeorus reports of hail and damaging winds. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

Nodaway County 1 ENE Maryville Mem Arpt 24 1137CST 1138CST 0.06 25 0 0 0.00K 0.00K Tornado (EF0)

A brief EFO tornado touchdown was observed, from 1137 to 1138 am CST, in rural land. The only damage reported was to tree limbs. Nodaway County 1 SW Pickering 24 1140CST 1141CST 0.11 25 0 0 0.00K 0.00K Tornado (EF0)

A brief EF0 tornado touchdown, from 1140 to 1141 am CST, was observed in open rural land.

Thunderstorms produced two EFO tornadoes in Nodaway County, in the late morning hours of April 24, 2010. These tornadoes were more like land spouts and only caused minor tree limb damage.

Howard County 1 E Fayette 24 1752CST 2352CST 0 0 0.00K 0.00K Flash Flood

Numerous county roads, were closed due to flash flooding. Randolph County 1 SE Huntsville 24 1804CST 25 0004CST 0 0 0.00K 0.00K Flood

Water was reported over the road on Route D, just south of Huntsville.

Howard County 2 ENE Fayette 24 2036CST 25 0236CST 0 0 0.00K 0.00K Flash Flood

Route H near Highway O, northeast of Fayette, was closed due to high water over the road.

Macon County 2 ENE Macon Arpt 25 0119CST 2 WSW Anabel 0719CST 0 0 0.00K 0.00K Flood

Water was reported over the road, closing Routes DD and PP. Thunderstorms with heavy rains, caused flash flooding across portions of the area, in the late evening hours of April 24th, into the early morning hours of April 25, 2010.

209 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Northwest Platte County (MCI)Ks City Intl Ar 30 0735CST 0 0 0.00K 0.00K Hail (1.75)

Platte County (MCI)Ks City Intl Ar 30 0737CST 0 0 0.00K 0.00K Hail (2.00)

Daviess County Pattonsburg 30 0738CST 0 0 0.00K 0.00K Hail (1.00)

Platte County 1 S Platte City 30 0738CST 0 0 0.00K 0.00K Hail (1.00)

Platte County (MCI)Ks City Intl Ar 30 0741CST 0746CST 0 0 0.00K 0.00K Hail (3.00)

Three inch diameter hail fell at the Kansas City International Airport, between 0741 and 0746 am CST. Hail had a very spiky and aggregate appearance. No damage was observed. Livingston County 1 S Chillicothe 30 0945CST 0 0 0.00K 0.00K Hail (1.75)

Livingston County Chillicothe 30 0950CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

A large oak tree fell on an outbuilding, crushing everything inside.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Howard County 6 ENE Burton 30 1433CST 0 0 0.00K 0.00K Hail (0.75)

Severe thunderstorms brought large hail to the area on April 30, 2010.

MISSOURI, Southeast Cape Girardeau County 1 ENE Gulf Jct 01 0000CST 15 1200CST 0 0 0.00K 0.00K Flood

Minor flooding of the Mississippi River occurred around Cape Girardeau. Some low-lying fields and river access facilities were under water. Heavy rainfall in mid-March caused the Mississippi River to rise above flood stage. The river crested by the end of March, then fell below flood stage in mid-April.

MOZ076-086-109> Bollinger - Butler - Cape Girardeau - Perry - Scott - Stoddard 111 06 1100CST 1800CST 0 0 6.0K 0.00K Strong Wind

Strong south winds occurred between a low pressure center over Kansas and high pressure off the southeast United States coast. Peak wind gusts ranged from 40 to 45 mph from Poplar Bluff northeast across Cape Girardeau and Marble Hill to Perryville. Stoddard County 2 NNW Advance 07 1535CST 0 0 20.00K 0.00K Thunderstorm Wind (61EG)

A 150-year-old wood barn was destroyed. Some debris from the tin roof was blown a considerable distance. The barn was constructed of hand-hewn cypress logs up to 42 feet long. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

210 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southeast Cape Girardeau County 2 NNE Dutchtown 07 1602CST 5 NW Cape Girardeau 1615CST 0 0 0.00K 0.00K Hail (0.88)

Nickel-sized hail fell two miles north of Dutchtown. A swath of dime to nickel-sized hail continued northeast, passing between Gordonville and the city of Cape Girardeau. Mississippi County East Prairie 07 1615CST 1800CST 0 0 0.00K 0.00K Heavy Rain

A trained spotter measured 1.8 inches of rain within two hours.

A cold front trailed south-southwestward from a surface low pressure center over west central Illinois through southeast Missouri. This cold front provided the low level lift for short lines of thunderstorms to develop during the late afternoon. Some breaks in the clouds allowed sunshine to destabilize the atmosphere, but mixed layer capes remained at or below 1000 j/kg due to modest lapse rates and low-level moisture. Surface dew points around 60 degrees pooled along the front. Wind profiles were unidirectional and generally parallel to the front. As a result, the storms were mainly organized into short linear structures with some bowing segments.

MOZ076-086-100- Bollinger - Butler - Cape Girardeau - Carter - Mississippi - New Madrid - Perry - Ripley - Scott - Stoddard 107>112-114 - Wayne 09 0300CST 0700CST 0 0 0.00K Frost/Freeze

Surface high pressure brought clear skies and light winds, setting the stage for frost formation. Temperatures bottomed out in the mid to upper 30's in most places. The cold spot was Doniphan, where the low was 32 degrees. The strawberry crop was the most vulnerable to damage, since most other vegetation was still dormant.

Wayne County Greenville 23 1700CST 24 0830CST 0 0 20.00K 0.00K Heavy Rain

A home was damaged when a portion of a basement wall collapsed. About three inches of rain fell during the previous night and early morning. The collapse occurred due to water collecting in recently excavated soil. The weight of the saturated mud caused one of the basement's concrete walls to collapse. The roof of the house began sagging after the collapse.

Butler County Poplar Bluff 23 1835CST 2015CST 0 0 30.00K 0.00K Flash Flood

Widespread street flooding was reported on the north side of Poplar Bluff and a few streets downtown. Some motorists were stranded in their vehicles. Police assisted stranded motorists and blocked flooded roads. Rainfall rates were estimated by radar around three inches within a couple hours over Poplar Bluff.

Southwest flow aloft brought an abundance of moisture in the form of increased cloud cover and occasional thunderstorms. At the surface, a large storm system developed in the southern Plains and moved only slowly northeast. Locally heavy rain and some isolated flooding resulted from the wet pattern.

New Madrid County 1 SSE Howardville 24 1200CST 0 0 8.00K 0.00K Thunderstorm Wind (56EG)

A new farmer's market and flea market structure was destroyed. The structure was an open structure with no solid walls. A temporary booth-like structure used for auctions was blown over. The damage was near the 44-mile marker on Interstate 55.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. New Madrid County 2 E Henderson Mound 24 1216CST 1218CST 0 0 50.00K 0.00K Thunderstorm Wind (100EG)

211 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southeast

This intense macroburst began in northeast New Madrid County, but the vast majority of the damage was in Mississippi County. Winds estimated near 115 mph heavily damaged a house under construction off Route OO. There was extensive damage to walls and the roof. A nearby 30-by-40 foot shed was blown away. A 14-foot boat was thrown about one-half mile. Most of the path was over very sparsely populated cropland. Tin and small metal frames were visible in fields off Highway BB, most likely debris from barns and sheds. Small tree limbs were down near tree lines that separated farm fields.

Note: The estimated wind gust of 100 knots is equivalent to 115 mph. Mississippi County 4 SSW East Prairie 24 1218CST 1228CST 0 1 250.00K 0.00K Thunderstorm Wind (104EG)

A macroburst approximately eight miles long and three miles wide struck the East Prairie area with winds up to 120 mph. The origins of the macroburst were in New Madrid County, but the vast majority of the event occurred in Mississippi County. The highest concentration of damage was in East Prairie. On County Road 535 on the outskirts of East Prairie, two mobile homes were demolished. A single-wide mobile home was completely separated from the frame, which was blown 100 yards until it struck a brick house. The sole occupant of the mobile home was a young adult who received only numerous minor abrasions that did not require hospitalization. A second nearby single-wide mobile home was blown a very short distance into trees and destroyed. This mobile home had been vacant for years. Both mobile homes were tied down. A nearby house lost most of the roof, and a large section of the windward-facing exterior wall was blown in. In the city of East Prairie, three industrial buildings were heavily damaged or destroyed. A large industrial block building was partially unroofed, a wood frame metal building was destroyed, and a wooden industrial shop was destroyed. The roof of the police department was damaged. Numerous trees were blown down in and near East Prairie, some damaging homes. Several farm buildings received minor to major damage southwest of town. Outside of town, several irrigation pivots were blown over, a barn was damaged, and a travel trailer was overturned. An empty grain bin was blown away. The peak wind of 120 mph was supported by damage to several structures, including the industrial buildings in East Prairie and the house and mobile homes on the outskirts of town. This was among the strongest downbursts ever documented in southeast Missouri.

Note: The estimated wind gust of 104 knots is equivalent to 120 mph.

Photo of the site of the demolished single-wide mobile home on County Road 535 on the outskirts of East Prairie. The sole occupant of the mobile home was ejected after it rolled at least twice, but he only received minor injuries. NWS photo. Mississippi County 2 SW Charleston 24 1251CST 1254CST 0 0 5.00K 0.00K Thunderstorm Wind (61EG)

About 20 percent of the metal was blown off a barn roof on Highway 105 south of Charleston. An interstate highway sign supported by two poles was blown down along Interstate 57 at exit 12, which is the U.S. Highway 60 exit.

212 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southeast

A well-organized upper level low moved east from the central Plains into the Mid Missouri Valley during the day. Very strong winds aloft accompanied this system. A streak of very strong mid level winds punched northeast from the Arklatex region into the Lower Ohio Valley during the afternoon. A low level jet from 50 to 60 knots over the Lower Mississippi Valley nosed into the Lower Ohio Valley. At the surface, a low pressure center tracked from north central Arkansas to near St. Louis by late afternoon. Though surface dew points climbed into the lower to mid 60's, extensive cloudcover along and ahead of a warm front limited instability. The instability was generally weak, characterized by cape values below 1000 j/kg. Most of the damage was the result of a line of thunderstorms that suddenly accelerated northeast from New Madrid and Mississippi Counties. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Cape Girardeau County 1 E Gulf Jct 28 0600CST 30 2359CST 0 0 0.00K 0.00K Flood

Minor flooding of the Mississippi River occurred near Cape Girardeau. Some low-lying fields and river access points were under water. Another round of heavy rain in the upper Mississippi River Valley caused the Mississippi River to rise above flood stage by the end of the month. Carter County 1 ESE Fremont 30 2022CST 0 0 3.00K 0.00K Thunderstorm Wind (65EG)

A small area of tree damage measured about 300 by 200 yards. Most of the damaged trees were soft white pines. A few trees were snapped six to eight feet off the ground. The damaged trees were less than one-half mile south of U.S. Highway 60 in the Mark Twain National Forest. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Carter County 1 NNW Ellsinore 30 2030CST 0 0 0.00K 0.00K Funnel Cloud

A trained spotter reported a funnel cloud off Highway N. Bollinger County Patton 30 2103CST 0 0 0.00K 0.00K Hail (0.75)

Dime-size hail was reported in and around Patton. Bollinger County 3 SE Alliance 30 2110CST 0 0 0.00K 0.00K Hail (1.00)

Quarter-size hail fell northwest of Sedgwickville near the end of Highway EE.

Butler County 10 S Poplar Bluff 30 2230CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Tree branches were broken and down. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cape Girardeau County Cape Girardeau 30 2235CST 2 NNE Gordonville 2250CST 0 0 3.00K 0.00K Thunderstorm Wind (50MG)

A wind gust of 58 mph was measured at a television station in Cape Girardeau. Trees were down in the Jackson and Gordonville areas. Note: The measured wind gust of 50 knots is equivalent to 58 mph. Butler County 4 W Poplar Bluff 30 2315CST 2355CST 0 0 30.00K 0.00K Flash Flood

Several roads were flooded and impassable. County Highway 302 had sections of the road washed away.

Scott County 4 NW Vanduser 30 2320CST 2350CST 0 0 0.00K 0.00K Heavy Rain

Water was over Highway 91 and CC Highway.

213 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southeast

Thunderstorms developed ahead of an eastward moving cold front over the Ozarks. Strengthening mid-level winds ahead of a strong shortwave trough over the central Plains aided storm development. Moderate instability combined with strong effective bulk shear around 50 knots provided very favorable conditions for supercells as the storms spread northeastward.

MISSOURI, Southwest Phelps County 2 SE Dillon 02 2212CST 2 WNW Zion Hill 03 0900CST 0 0 0.00K 0.00K Flood

The low water crossings on county roads 3220 and 3040 were reported to have 8 to 12 inches of water running across them.

Pulaski County 2 SSW Gospel Ridge 02 2301CST 03 1000CST 0 0 0.00K 0.00K Flood

A portion of State Route H was closed due to high water. Texas County 4 SW Cabool 03 0047CST 0945CST 0 0 0.00K 0.00K Flood

A portion of State Route EE was closed due to high water. Phelps County 2 N Doolittle 03 0545CST 1545CST 0 0 0.00K 0.00K Flood

A low water crossing on County Road 8280 was reported impassable due to high water.

Strong to severe thunderstorms, associated with a cold front, pushed across southeast Kansas and into Missouri. The storms initially produced severe wind gusts up to 75 mph in Kansas, then produced flooding rains across portions of central Missouri.

Barton County 4 N Kenoma 07 0027CST 0 0 0.00K 0.00K Hail (0.75)

Barton County 4 N Kenoma 07 0027CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG) Thunderstorm winds downed one to two inch diameter tree limbs.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cedar County Stockton 07 0055CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG) The Corp of Engineers reported that severe thunderstorm wind gusts destroyed a press box at the Stockton High School football field. A weakening line of thunderstorms that moved into southwest Missouri sporadically produced large hail and wind damage mainly to trees. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Laclede County 1 NE Sleeper 22 1810CST 0 0 0.00K 0.00K Hail (0.88)

Laclede County 1 NE Sleeper 22 1812CST 0 0 5.00K 0.00K Hail (1.50)

Pulaski County 1 SW Buckhorn 22 1837CST 0 0 0.00K 0.00K Hail (1.00)

Pulaski County 1 WNW Laquey 22 1840CST 0 0 0.00K 0.00K Hail (0.88)

Isolated severe thunderstorms produced a few reports of severe hail across portions of central Missouri.

214 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southwest Barry County Golden 23 1507CST 0 0 0.00K 0.00K Hail (1.00)

Greene County 4 SW Springfield 23 1520CST 0 0 0.00K 0.00K Hail (0.75)

Greene County 1 E Springfield 23 1520CST 0 0 0.00K 0.00K Hail (1.00)

Greene County 1 E Battlefield 23 1521CST 0 0 0.00K 0.00K Hail (0.88)

Stone County 2 W Galena 23 1527CST 0 0 0.00K 0.00K Hail (1.00)

Greene County Fair Grove 23 1549CST 0 0 0.00K 0.00K Hail (0.75)

Greene County 3 NW Wildwood Estates 23 1615CST 0 0 0.00K 0.00K Hail (0.88)

Greene County 2 WNW Sequiota 23 1620CST 0 0 0.00K 0.00K Hail (0.88)

Hickory County Pittsburg 23 1655CST 0 0 0.00K 0.00K Hail (1.00)

Hickory County 1 ENE Pittsburg 23 1658CST 0 0 0.00K 0.00K Hail (1.00)

Hickory County 1 S Cross Timbers 23 1712CST 0 0 10.00K 0.00K Hail (1.75)

Hickory County 1 S Cross Timbers 23 1712CST 0 0 2.00K 0.00K Thunderstorm Wind (58EG) A large tree was reported down in town. Note: The estimated wind gust of 58 knots is equivalent to 67 mph. Hickory County 1 N Cross Timbers 23 1719CST 0 0 0.00K 0.00K Hail (1.00)

Benton County 1 ENE Edwards 23 1721CST 0 0 0.00K 0.00K Hail (1.00)

Benton County 2 WNW Knobby 23 1723CST 0 0 10.00K 0.00K Hail (1.75)

Benton County 1 N Knobby 23 1725CST 0 0 0.00K 0.00K Hail (0.88)

Benton County 3 N Knobby 23 1725CST 0 0 0.00K 0.00K Hail (0.88)

Benton County 1 N Hastain 23 1725CST 0 0 0.00K 0.00K Hail (1.00)

A deep upper low tracked into the region bringing widespread rainfall and isolated severe weather. Limited instability in conjunction with a vigorous shortwave generated a couple of bands of strong to isolated severe convection.

215 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southwest Barry County 3 SE Shell Knob 24 1235CST 1240CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

A boat dock on Table Rock Lake was ripped from shore and pushed down the cove.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Taney County 5 SSW Branson Mem Arpt 24 1240CST 1242CST 0.51 70 0 0 20.00K 0.00K Tornado (EF0)

A National Weather Service storm survey revealed that an EF-0 tornado with 80 mph winds touched down at the Table Rock State Park Marina and Camp Grounds. The tornado damaged a few docks while twisting trees within Camp Site number 2. The damage path extended for one half of a mile...while the width was approximately 70 yards.

Stone County Blue Eye 24 1245CST 1250CST 0 0 15.00K 0.00K Thunderstorm Wind (52EG)

A large 50 x 24 metal barn was destroyed and several trees were downed in the woods.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Stone County 1 NNW Kimberling City 24 1248CST 1253CST 0 0 20.00K 0.00K Thunderstorm Wind (52EG)

Multiple trees were downed along James River Road near Hoot Owl Point. A few homes received minor damage from fallen trees and limbs. One boat dock was flipped over. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Stone County 2 SE Silver Dollar City 24 1250CST 1255CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A large tree was down across Highway 13. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Taney County 1 NW Pt Lookout Arpt 24 1253CST 1258CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

A large wooden swing set was blown across Highway 76. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Stone County 2 NNE Kimberling City 24 1300CST 3 NNE Notch 1305CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

There were numerous reports of broken tree limbs and damage to power lines across the county.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Christian County 2 NW Highlandville 24 1329CST 1333CST 0 0 1.00K 0.00K Thunderstorm Wind (59MG)

Large tree limbs were downed due to thunderstorm winds. Note: The measured wind gust of 59 knots is equivalent to 68 mph. Douglas County 1 SSW Hest 24 1339CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG) Thunderstorm winds downed a large tree at the intersection of Highway 5 and Highway A.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

216 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southwest Greene County Springfield 24 1344CST 1349CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)

Thunderstorm winds downed large tree limbs. Note: The measured wind gust of 54 knots is equivalent to 62 mph. Christian County 3 NE Ozark Airpark Arpt 24 1352CST 1355CST 0 0 5.00K 0.00K Thunderstorm Wind (73MG)

Severe thunderstorm winds tore the roof off a carport at the intersection of Highway NN and Melton Road.

Note: The measured wind gust of 73 knots is equivalent to 84 mph. Wright County 1 E Norwood 24 1358CST 0 0 0.00K 0.00K Hail (0.75)

Webster County 1 E Rogersville 24 1401CST 1406CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)

Thunderstorm winds downed large tree limbs. Hail to a half an inch in size was also reported.

Note: The measured wind gust of 52 knots is equivalent to 60 mph. Howell County 2 SSW Peace Vly 24 1423CST 1428CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Severe thunderstorm wind gusts downed a large tree across Highway 17 north of County Road 1500.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Polk County 1 SE Pleasant Hope 24 1423CST 1428CST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Severe thunderstorm wind gusts downed several power poles and several trees near the Pleasant Hope area.

A deep upper low tracked into the region bringing widespread rainfall and isolated severe weather. Limited instability in conjunction with a vigorous shortwave generated a couple of bands of strong to isolated severe convection. These storms produced several severe wind reports and one EF-0 tornado on Table Rock Lake in Taney County. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Lawrence County 2 ESE Round Grove 30 1315CST 0 0 0.00K 0.00K Hail (1.00)

Barry County 1 W Exeter 30 1348CST 0 0 10.00K 0.00K Hail (1.75)

Barry County 2 S Purdy 30 1400CST 0 0 0.00K 0.00K Hail (1.00)

Greene County 1 N Phenix 30 1405CST 0 0 0.00K 0.00K Hail (0.88)

Barry County 1 S Scholten 30 1425CST 0 0 0.00K 0.00K Hail (0.88)

Barry County 1 W Seligman 30 1440CST 0 0 0.00K 0.00K Hail (0.75)

217 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southwest Stone County 2 NNE Kimberling City 30 1455CST 0 0 0.00K 0.00K Hail (0.75)

Stone County 1 ESE Cape Fair 30 1455CST 0 0 0.00K 0.00K Hail (0.88)

Greene County 1 ESE Mentor 30 1500CST 0 0 0.00K 0.00K Hail (1.00)

Stone County Reeds Spg 30 1500CST 0 0 0.00K 0.00K Hail (1.00)

Christian County Highlandville 30 1514CST 0 0 0.00K 0.00K Hail (1.00)

Wright County 1 E Grovespring 30 1550CST 0 0 0.00K 0.00K Hail (1.00)

Ozark County Pontiac 30 1650CST 1655CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds downed numerous large trees. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Ozark County 2 SSE Pontiac 30 1652CST 1 NNW Hardenville 1712CST 14.62 440 0 0 0.00K 10.00K Tornado (EF1)

An EF-1 tornado with winds estimated at 100 mph crossed the Missouri and Arkansas state line south of Pontiac, Missouri. Damage in Missouri consisted of the uprroting and snapping of trees.

Ozark County Hardenville 30 1712CST 3 NW Tecumseh 1714CST 3.72 440 0 0 80.00K 0.00K Tornado (EF1)

An EF-1 tornado produced 90 to 100 mph winds uprotting numerous trees, damaging several outbuildings, a horse trailer, and downing power lines and poles. Ozark County 1 ENE Hardenville 30 1714CST 1715CST 0.82 100 0 0 0.00K 1.00K Tornado (EF0)

An EF-0 tornado briefly touched down uprooting trees. Ozark County 2 WNW Lawndale 30 1724CST 4 ENE Toccoa 1740CST 11.05 1320 0 0 875.00K 25.00K Tornado (EF1)

An EF-1 tornado with maximum winds estimated at 110 mph damaged 30 homes, some severely, along with numerous barns and other outbuildings. Hundreds of oaks trees were damaged including many that were uprooted or snapped.

Ozark County 1 E Dora 30 1737CST 0 0 0.00K 0.00K Hail (1.00)

Howell County 2 NNW Burnham 30 1805CST 0 0 0.00K 0.00K Hail (1.25)

218 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MISSOURI, Southwest Howell County 1 NW Burnham 30 1805CST 3 SE Willow Spgs 1810CST 2.74 1320 0 0 750.00K 25.00K Tornado (EF1)

An EF-1 tornado with maximum winds of 110 mph produced moderate to severe damage to several homes and a restrurant located near the intersection of Missouri Highways 60 and 63 (Hillbilly Junction). Severe damage also occurred at the Willow Springs water treatment plant. The path width varied between a quarter and three quarters of a mile.

Howell County 1 S Willow Spgs 30 1807CST 0 0 0.00K 0.00K Hail (1.25)

Howell County 5 S West Plains 30 1900CST 0 0 5.00K 0.00K Hail (1.50)

An approaching shortwave trough and accompanying surface low tracked northeast of Arkansas and into southern Missouri. A modest instability and high shear environment with very moist airmass supported widespread convection and a few supercells. A tornadic supercell tracked northeast from north central Arkansas through Ozark and Howell counties in Missouri producing five tornadoes.

MONTANA, Central

MTZ009-012-014 Cascade - Eastern Glacier - North Rocky Mountain Front - Southern Lewis and Clark

03 0949MST 1430MST 0 0 0.00K 0.00K High Wind

Deep surface low pressure moving across southern Canada contributed to the development of high winds along the Rocky Mountain Front. Wind gusts in excess of 60 mph were reported.

MTZ008-015 Beaverhead - Madison 05 1900MST 06 1429MST 0 0 0.00K 0.00K Winter Storm

MTZ055 Gallatin 06 0000MST 1429MST 0 0 0.00K 0.00K Winter Storm

A Pacific storm system brought heavy snow to portions of Southwest Montana. Snow amounts in excess of 6 inches were common.

MTZ009>014-044> Blaine - Broadwater - Cascade - Chouteau - Eastern Glacier - Fergus - Gallatin - Hill - Judith Basin - 045-047>048-050> Liberty - North Rocky Mountain Front - Southern Lewis and Clark - Southern Rocky Mountain Front - 051-053-055 Toole 08 1156MST 1755MST 0 0 0.00K 0.00K High Wind

Very deep surface low pressure moving east of the Contiental Divide along the International Boundary helped create high winds over most of North Central Montana. Wind gusts in excess of 60 mph were common.

MTZ008>015-044> Beaverhead - Blaine - Broadwater - Cascade - Chouteau - Eastern Glacier - Eastern Pondera - Eastern 055 Teton - Fergus - Gallatin - Hill - Jefferson - Judith Basin - Liberty - Madison - Meagher - North Rocky Mountain Front - Southern Lewis and Clark - Southern Rocky Mountain Front - Toole 13 0000MST 1200MST 0 0 0.00K 0.00K Winter Storm

A powerful spring Pacific storm brought widespread snow to most of North Central Montana. Snow amounts ranged from 6 inches to over a foot.

MTZ009 North Rocky Mountain Front 24 1500MST 0 0 0.00K 0.00K High Wind A Pacific storm system brought high winds to the Northern Rocky Mountain Front. Wind gusts in excess of 60 mph were reported.

219 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MONTANA, Central MTZ009-048-055 Gallatin - North Rocky Mountain Front - Southern Rocky Mountain Front

28 0600MST 30 0543MST 0 0 0.00K 0.00K Winter Storm

MTZ010>014-046- Cascade - Chouteau - Eastern Glacier - Eastern Pondera - Eastern Teton - Fergus - Hill - Jefferson - 049>052-054 Judith Basin - Meagher - Southern Lewis and Clark 29 0600MST 0 0 0.00K 0.00K Winter Storm 30 A strong Pacific spring storm brought winter weather to a large portion of North Central Montana. Snow amounts ranged from 6 inches to several feet of new snow in the mountains.

MTZ051 Fergus 30 1653MST 0 0 0.00K 0.00K High Wind A deep closed upper low over Wyoming brought heavy snow and high winds to Fergus County. Wind gusts in excess of 58 mph were reported.

MONTANA, East

MTZ016-020-022> Central and Southeast Phillips - Central and Southern Valley - Garfield - Little Rocky Mountains - 023-059>060 McCone - Northern Phillips - Western Roosevelt 08 1430MST 1910MST 0 0 0.00K 0.00K High Wind

MTZ017 Central and Southern Valley 08 1730MST 09 0400MST 0 0 75.0K 0.00K Wildfire

Wildfire near Glasgow, Montana destroys barn.

MTZ018-025>026- Daniels - Dawson - Northern Valley - Prairie - Sheridan 061 08 1744MST 2006MST 0 0 0.00K 0.00K High Wind

A strong area of low pressure moved east across southern Saskatchewan. High winds associated with a trailing cold front helped to kick up brush fires in some areas.

220 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MONTANA, East Petroleum County 20 E Winnett 13 0310MST 0 0 0.00K 0.00K Hail (0.88)

Trained spotter reported nickel-size hail. Garfield County 13 NW Sand Spgs 13 0325MST Mosby 0343MST 0 0 0.00K 0.00K Hail (0.88)

Spotters from Mosby to 13 NW of Sand Springs reported nickel-size hail with thunderstorms.

Hail with brief heavy rain fell from thunderstorms that formed along a frontal boundary in the area.

MTZ060 Little Rocky Mountains 29 0400MST 30 2300MST 0 0 0.00K 0.00K Winter Storm

An upper trough over the area provided a moist and cold flow airstream that was lifted provided a heavy snowfall and windy conditions to southwest Phillips county.

MTZ016-020-022- Central and Southeast Phillips - Dawson - Garfield - Little Rocky Mountains - Western Roosevelt 025-060 30 1210MST 2100MST 0 0 0.00K 0.00K High Wind

A marginal wind event ensued across the area with a vertically stacked area of low pressure centered over North Dakota. Mid- level winds mixed to the surface creating the strong winds in places.

MONTANA, South

MTZ036-056-066- Absarokee/Beartooth Mountains - Beartooth Foothills - Powder River - Red Lodge Foothills 067 01 0000MST 02 0830MST 0 0 0.00K 0.00K Heavy Snow

An early Spring storm system moved across the Northern Rockies bringing widespread precipitation to the Billings Forecast Area. The precipitation began as a mix of rain and snow but quickly changed to all snow during the early morning hours. Icy and snow covered roads were common during the late night and early morning hours of the 1st.

MTZ029-035 Musselshell - Yellowstone 08 1621MST 2000MST 0 0 High Wind

A strong cold front moved across the Billings Forecast Area during the late afternoon hours and into the evening on the 8th. High winds occurred along and behind the front resulting in dangerous driving conditions.

MTZ063 Judith Gap 13 0200MST 1400MST 0 0 0.00K 0.00K Heavy Snow

A strong storm system moved across South Central Montana bringing heavy snow to portions of the Billings Forecast Area.

Fallon County 130 NE Quietas 28 1624MST 0 0 Thunderstorm Wind (54MG)

An isolated thunderstorm producing strong wind gusts moved across Fallon County. Note: The measured wind gust of 54 knots is equivalent to 62 mph. MTZ067 Absarokee/Beartooth Mountains 28 2100MST 30 1000MST 0 0 0.00K 0.00K Heavy Snow

221 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MONTANA, South

A strong and slow moving Spring storm system moved across Southern Montana and Northern Wyoming. This storm brought heavy snow to the Crazy, and Beartooth/Absaroka Mountains, as well as the higher terrain of Southern Big Horn County.

MTZ028 Southern Wheatland 29 0655MST 1455MST 0 0 High Wind

A powerful spring storm system and surface low over Northeast Montana brought high winds across portions of the Billings Forecast Area on the 29th and 30th.

MTZ068 Crazy Mountains 29 0800MST 30 1300MST 0 0 0.00K 0.00K Heavy Snow

A strong and slow moving Spring storm system moved across Southern Montana and Northern Wyoming. This storm brought heavy snow to the Crazy, and Beartooth/Absaroka Mountains, as well as the higher terrain of Southern Big Horn County.

MTZ035-038 Southern Big Horn - Yellowstone 30 0300MST 1100MST 0 0 High Wind

A powerful spring storm system and surface low over Northeast Montana brought high winds across portions of the Billings Forecast Area on the 29th and 30th.

30 0500MST 1730MST 0 0 0.00K 0.00K Heavy Snow

A strong and slow moving Spring storm system moved across Southern Montana and Northern Wyoming. This storm brought heavy snow to the Crazy, and Beartooth/Absaroka Mountains, as well as the higher terrain of Southern Big Horn County.

MTZ031 Northern Rosebud 30 1202MST 1730MST 0 0 High Wind

A powerful spring storm system and surface low over Northeast Montana brought high winds across portions of the Billings Forecast Area on the 29th and 30th.

MONTANA, West

MTZ001-003-005> Bitterroot/Sapphire Mountains - Butte/Blackfoot Region - Flathead/Mission Valleys - Kootenai/Cabinet 007-043 Region - Missoula/Bitterroot Valleys - Potomac/Seeley Lake Region 08 0940MST 2000MST 0 0 24.3K 0.00K High Wind

A vigorous shortwave and associated cold front produced very strong winds in portions of western Montana on April 8th. Wind speeds up to 60 mph were reported with this system. Damage to trees, powerlines, cars and property occured virtually area wide.

MTZ002-007-043 Butte/Blackfoot Region - Potomac/Seeley Lake Region - West Glacier Region

13 0300MST 14 0356MST 0 0 0.00K 0.00K Heavy Snow

A deep upper level low pressure system moving through western Montana and north central Idaho push a strong jet stream and associated cold front through the region. An area of wrap around precipitation developed, bringing rain and snow to much of the area. Accumulating snow affected portions of southwest Montana and along the Continental Divide. Snow amounts ranged from five to 12 inches.

MTZ002 West Glacier Region 28 1800MST 30 0500MST 0 0 0.00K 0.00K Heavy Snow

222 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

MONTANA, West

A closed upper level low deepened over central and eastern Montana with wrap around moisture affecting western Montana. The main impact was to Glacier National Park where eight to nine inches of snow fell in the lower elevations, and up to 42 inches of snow was reported above 6000 feet. In elevations below 4000 feet, impressive rain fall amounts were recorded, ranging from 0.60 to 4.4 of liquid.

NEBRASKA, Central

NEZ005-008>009- Arthur - Blaine - Brown - Chase - Custer - Eastern Cherry - Frontier - Hayes - Hooker - Keith - Keya 024>027-035>038- Paha - Lincoln - Logan - Loup - McPherson - Perkins - Rock - Thomas 057>059-069>071 13 0800MST 1830MST 0 0 45.0K 0.00K High Wind

Deep low pressure over eastern Colorado into the Nebraska panhandle caused a tight surface pressure gradient and very strong southerly winds. Strong southerly winds of 35 to 45 mph with gusts to around 60 mph were common from late morning, through the afternoon and evening hours on Tuesday, April 13, 2010. The strong winds were responsible for overturning at least two semi trucks, as well as damage to road signs, homes, and businesses. The strong winds were also responsible for the spread of a wildfire across Keith, McPherson, and Arthur counties, which burned approximately 6000 acres.

Deuel County 2 ESE Chappell 13 1442MST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail covered the ground 2 miles east of Chappell.

Deuel County 1 S Chappell 13 1442MST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail was reported by a trained spotter in Chappell at 242 pm MST.

Perkins County Venango 13 1625MST 0 0 0.00K 0.00K Hail (1.00)

Perkins County 5 N Grant 13 1646MST 0 0 15.00K 0.00K Thunderstorm Wind (50EG) Two gustnadoes were spotted in gust front winds. One of the gustnadoes, 2.75 miles south of Grant, damaged a center pivot irrigation system as it passed. A strong cold front produced a line of thunderstorms across western and north central Nebraska during the afternoon and evening hours on Tuesday, April 13, 2010. Hail, as well as a few gustnadoes, were reported along the leading edge of the thunderstorms across the southeast panhandle into southwest Nebraska. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Grant County 16 SSE Hyannis 23 1537MST 0 0 0.00K 0.00K Funnel Cloud

Multiple reports of funnel clouds from the public were received by the Grant County sheriff's office. One of the funnels was photographed by a storm spotter in Hooker County. A northward advancing warm front was a focus for thunderstorm development over portions of north central Nebraska during the afternoon hours on April 23rd, 2010. Small hail was reported with a few of the stronger storms while multiple reports of funnel clouds were reported in southern Grant county.

Blaine County 5 WSW Dunning 28 1910CST 0 0 0.00K 0.00K Hail (1.00)

Brown County 23 SSW Ainsworth 28 2048CST 0 0 0.00K 0.00K Hail (0.75)

An advancing cold front and upper level disturbance triggered scattered showers and thunderstorms across portions of western and north central Nebraska. A few of the stronger storms produced hail up to one inch in diameter in north central Nebraska during the evening hours of April 28, 2010.

223 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, East Nemaha County 3 N Brownville 01 0001CST 2 E Peru 03 0645CST 0 0 0.00K 0.00K Flood

Minor flooding continued into early April along the Missouri River near Brownville. The river at Brownville crested around 38 feet in late March and finally fell below its 32 foot flood stage during the morning of April 3. The higher water and any damage was mainly caused by the higher water levels that occurred in late March.

Snow melt and several rain episodes caused the Missouri River to flood from mid March into early April.

Nemaha County 1 S Auburn 05 1007CST 0 0 0.00K 0.00K Hail (1.00)

Nemaha County Peru 05 1022CST 1030CST 0 0 0.00K 0.00K Hail (1.25)

Law enforcement reported half dollar-size hail just north of Peru. A few minutes earlier a report of nickel size hail was reported in town. Scattered thunderstorms moved into southeast Nebraska during the morning of April 5th as warm and moist air streamed northeast into the region. Isolated storms produced large hail.

Lancaster County 1 SW Waverly 05 2320CST 0 0 10.00K 0.00K Thunderstorm Wind (55EG)

Thunderstorm wind gusts estimated at over 60 mph partially destroyed a 3000 square foot storage shed that was under construction. This same cell went on to cause further damage a little farther east/northeast of the area.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Dodge County 1 SSE Fremont 05 2322CST 0 0 0.00K 0.00K Hail (0.88)

Saunders County 3 ENE Cedar Bluffs 05 2322CST 0 0 0.00K 0.00K Hail (0.88)

Dodge County 2 ESE Fremont 05 2330CST 2333CST 0 0 0.00K 0.00K Hail (1.00)

Hail up to 1 inch in diameter fell for several minutes in the Fremont area.

Cass County 4 ENE Greenwood 05 2330CST 2335CST 0 0 20.00K 0.00K Thunderstorm Wind (55EG)

Thunderstorm wind gusts estimated at over 60 mph damaged a few signs along Interstate 80 and blew a semi truck over near mile marker 422. The storm also did some damage to a race track bleacher section near the area. This same cell caused some damage in the Waverly area a few minutes earlier. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Washington County 6 NE Spiker 05 2345CST 0 0 0.00K 0.00K Hail (0.88)

Douglas County Dundee 05 2358CST 1 SE Omaha Millard Arpt 06 0002CST 0 0 0.00K 0.00K Hail (0.88)

Hail around penny and nickel-size was reported near 126th and Harrison Streets and 75th and Blondo. The hail at 126th and Harrison was accompanied by winds estimated at 40 mph.

224 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, East Douglas County 1 E West Benson 06 0005CST 0 0 90.00K 0.00K Lightning

Lightning struck a tree which then caught fire and spread to a nearby house nearly destroying it. The house was in the 2600 block of North 45th Street. Thunderstorms, a few severe, developed near a warm front over southeast Nebraska, during the evening of April 5. After these storms diminished by late evening, new storms developed in an area of warm advection aided by a low level jet. Although the storms primarily produced large hail, isolated storms in the late evening/early morning hours also produced damaging winds.

NEZ016 Antelope 13 1700CST 0 0 15.0K 0.00K Strong Wind Deep low pressure over Wyoming brought strong southerly winds to eastern Nebraska. Sustained winds of 25 to 35 mph with gusts of 40 to 50 mph were common. These winds caused isolated damage across the region, most notably a large livestock shed which was destroyed with the debris scattered across Highway 70 west of Elgin.

Sarpy County 3 S Gretna 23 1802CST 0 0 0.00K 0.00K Hail (1.00)

Hail up to 1 inch in diameter was observed by off duty NWS meteorologists along Interstate 80 near exit 432.

Gage County 4 NNE Filley 23 1815CST 0 0 0.00K 0.00K Hail (1.00)

Gage County 2 WSW Adams 23 1839CST 0 0 0.00K 0.00K Hail (0.88)

Lancaster County 2 WNW Bennet 23 1845CST 0 0 0.00K 0.00K Hail (1.00)

Lancaster County 1 SW Waverly 23 1850CST 0 0 0.00K 0.00K Hail (0.88)

Accompanied by 50 mph gusts. Lancaster County 5 NNW Bennet 23 1854CST 0 0 0.00K 0.00K Hail (1.00)

Lancaster County 1 SW Waverly 23 1905CST 0 0 0.00K 0.00K Hail (1.00)

Lancaster County 3 N Bennet 23 1930CST 0 0 0.00K 0.00K Hail (1.50)

Saunders County 2 E Weston 23 1930CST 0 0 0.00K 0.00K Hail (1.75)

The public reported a few hailstones reached golfball-size. Cass County 3 W Alvo 23 1935CST 0 0 0.00K 0.00K Hail (1.25)

Cass County 3 E Greenwood 23 1947CST 0 0 0.00K 0.00K Hail (0.75)

Saunders County 3 SW Yutan 23 2004CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Emergency management estimated thunderstorm wind gusts reached around 60 mph southwest of Yutan.

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

225 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, East Douglas County 1 W Valley 23 2010CST 0 0 0.00K 0.00K Hail (0.75)

Douglas County 1 W Valley 23 2017CST 2029CST 0 0 0.00K 0.00K Hail (1.00)

Hail at the NWS office fell for almost 20 minutes, although there was a brief break. The hail reached 1 inch in diameter toward the end of the second episode and was accompanied by very heavy rain, with nearly 2 inches measured from the storm, and 35 mph winds.

Washington County 1 SSE Blair 23 2034CST 0 0 0.00K 0.00K Hail (0.75)

Otoe County 4 WSW Palmyra 23 2040CST 0 0 0.00K 0.00K Hail (1.00)

Cedar County 1 W Randolph 23 2103CST 0 0 0.00K 0.00K Hail (1.00)

Saunders County 2 NE Wahoo 23 2114CST 0 0 0.00K 0.00K Hail (0.75)

Burt County 1 E Tekamah 23 2133CST 0 0 0.00K 0.00K Hail (0.88)

Antelope County Neligh 23 2248CST 0 0 0.00K 0.00K Hail (1.00)

A warm front lifted north across eastern Nebraska during the afternoon of April 23rd. This allowed unstable conditions to spread north across the region. A large upper level low pressure system began moving onto the plains from the central Rocky Mountains during the evening of the 23rd which aided in thunderstorm development over the region. In addition...a dryline spread into southeast Nebraska during the evening of the 23rd also aiding in convective development.

Pierce County 3 SW Pierce 24 1318CST 1320CST 0 0 0.00K 0.00K Hail (1.75)

Hail, mostly up to 1 inch in diameter, covered the ground west of Pierce. A few hailstones reached golfball-size.

Pierce County 3 W Pierce 24 1418CST 0 0 0.00K 0.00K Hail (1.00)

From the second severe storm to hit the area in about 1 hour.

Knox County 6 WSW Santee 24 1455CST 0 0 0.00K 0.00K Hail (0.75)

A large upper level low pressure system caused scattered thunderstorms to develop during the late morning and early afternoon of April 24th. The storms then moved west and southwest in response to the upper circulation center...and a few of them produced large hail. Jefferson County 2 E Daykin 29 1755CST 0 0 0.00K 0.00K Hail (0.88)

Saline County 3 SE Western 29 1758CST 0 0 0.00K 0.00K Hail (1.00)

226 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, East Saline County 4 SW Wilber Muni Arpt 29 1810CST 0 0 0.00K 0.00K Hail (0.75)

Jefferson County 1 SW Fairbury 29 1912CST 0 0 0.00K 0.00K Hail (1.00)

Jefferson County 2 N Endicott 29 1915CST 0 0 0.00K Thunderstorm Wind (60EG) Thunderstorm wind gusts estimated at over 65 mph downed trees and power lines along 710 road. The damage was probably the rear flank downdraft from the supercell that spawned a tornado just to the northeast a few minutes later.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Jefferson County 4 W Diller 29 1922CST 3 ENE Shea 1925CST 2.89 300 0 0 650.00K 0.00K Tornado (EF1)

An Assessment team from the NWS determined that a tornado tracked around 3 miles west through northwest of the Diller area. The damage path was around 300 yards at its widest. Trees and farm outbuildings were damaged along its path and 35 large power poles were snapped. A house in the area also sustained major damage to the roof and windows and the upper floor was partially shifted from the lower floor and a wall was bowed outward and garage destroyed. A center irrigation pivot was damaged at the tornadoes lifting point.

Lancaster County 2 NW Kramer 29 1936CST 0 0 0.00K 0.00K Hail (1.00)

Otoe County 1 N Burr 29 2020CST 0 0 0.00K 0.00K Hail (0.88)

Jefferson County 2 W Reynolds 29 2039CST 0 0 0.00K 0.00K Hail (0.75)

Sarpy County Bellevue 29 2040CST 0 0 0.00K 0.00K Hail (0.88)

Gage County 1 NW Cortland 29 2041CST 0 0 0.00K 0.00K Hail (1.00)

Lancaster County 1 W Hickman 29 2046CST 0 0 0.00K 0.00K Hail (1.00)

Jefferson County 1 SW Fairbury 29 2056CST 0 0 0.00K 0.00K Hail (1.00)

Jefferson County 5 WSW Endicott 29 2057CST 0 0 0.00K 0.00K Hail (2.00)

Hail up to 2 inches in diameter caused damage to a car west southwest of Endicott.

Lancaster County 2 NNW Cheneys 29 2058CST 0 0 0.00K 0.00K Hail (1.00)

Otoe County 1 NW Palmyra 29 2100CST 0 0 0.00K 0.00K Hail (1.50)

Saunders County 1 SE Ashland 29 2115CST 0 0 0.00K 0.00K Hail (1.00)

227 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, East Gage County 1 NNW Blue Spgs 29 2136CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm wind gusts estimated at close to 60 mph blew 6 inch diameter metal irrigation pipes onto a road.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lancaster County 1 W Bennet 29 2145CST 0 0 0.00K 0.00K Heavy Rain

Rainfall of 2.75 inches in Bennet from several storms that moved across the area this evening caused considerable standing water in farm fields around town. A large upper level low pressure system over the northern plains brought gusty southwest winds and warm and relatively dry air to eastern Nebraska and southwest Iowa during the afternoon of April 29th. By early evening strong south winds transporting more moist and unstable air caused thunderstorms to develop over north central Kansas near the intersection of the drier air and this more unstable airmass. These thunderstorms then tracked northeast into southeast Nebraska and southwest Iowa aided by an increasing low level jet. The thunderstorms produced a modest amount of large hail reports and at least one tornado in southeast Nebraska. Areas of heavy rain also accompanied some of the activity.

NEBRASKA, Extreme Southwest

NEZ079-081 Dundy - Red Willow 13 1000MST 1800MST 0 0 0.00K 0.00K High Wind

Strong south to southwest surface gradient winds developed during the morning hours and continued through most of the day across eastern Colorado, southwest Nebraska and western Kansas. Peak wind gusts of 50 to 70 mph were common across the area, producing minor damage, including a broken utility pole, and tree and awning damage. One vehicle was blown over on Interstate 70 near Colby, Kansas but no injuries occurred.

NEBRASKA, South Central

NEZ060 Dawson 13 1810CST 0 0 3.0K 0.00K High Wind A strengthening surface low pressure system over eastern Wyoming brought increasing winds to the area during the morning hours, which then continued to increase as the low shifted to the east. Once the sun came up, the impact of mixing down stronger winds aloft brought numerous wind gusts of 45 to 55 mph, with one report of a 59 mph reported by the AWOS in Lexington. These gusty winds knocked down tree branches into power lines, causing power outages, and one home also reported damage to a vehicle and boat. Webster County 6 S Red Cloud 14 1350CST 0 0 0.00K 0.00K Hail (0.88)

Phelps County 3 E Loomis 14 1742CST 0 0 0.00K 0.00K Hail (0.75)

A weak surface boundary stalled across the region provided a focus for scattered thunderstorm development during the afternoon and early evening hours. Moisture pooling along the boundary, along with modest instability but marginal shear, allowed for some strong thunderstorms, dropping hail up to the size of nickels.

Webster County 4 S Red Cloud 22 2225CST 0 0 0.00K 0.00K Hail (1.00)

An upper level disturbance crossing the Central Plains aided in the development of evening thunderstorms across South Central Nebraska. While the best instability remained well to the south, enough was available to allow for some strong thunderstorms, as well as an isolated severe thunderstorm near Red Cloud, which dropped quarter size hail.

Thayer County 1 S Hubbell 29 1725CST 1730CST 0 0 15.00K 0.00K Hail (1.75)

228 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEBRASKA, South Central Thayer County Need 29 1738CST 0 0 0.00K 0.00K Hail (1.25)

Thayer County 5 NE Hubbell 29 1900CST 0 0 0.00K 0.00K Hail (1.00)

Thayer County 1 S Chester 29 2002CST 0 0 5.00K 0.00K Hail (1.00)

Thayer County Need 29 2026CST 0 0 0.00K 0.00K Hail (1.00)

A surface front draped across the region was the focus for convective development across eastern portions of South Central Nebraska. These early to mid evening thunderstorms developed as a mid level disturbance crossed the region, and a narrow band of instability nosing in from the south allowed for some thunderstorms to become strong to severe. Hardest hit was Thayer County, which saw thunderstorms dropping anywhere from quarter to golfball size hail, and heavy rain of 1 to 2 inches.

NEBRASKA, West

NEZ019 Scotts Bluff 03 1521MST 1900MST 0 0 High Wind

A Pacific cold front was expected to move into western Wyoming the morning of April 3rd subsequently tightening of the surface pressure gradient across the Nebraska Panhandle. This increasing pressure gradient combined with strong winds aloft resulted in very strong west to southwest winds across extreme western portions of the Nebraska panhandle.

NEZ095 North Sioux 06 1700MST 07 2359MST 0 0 Heavy Snow

A slow moving storm system moved over the area on 5th and 6th. Most locations received a couple of inches, but a snowfall amount greater than six inches was reported.

NEZ003 Box Butte 13 1133MST 1655MST 0 0 High Wind

As a low pressure moves into the area with an associated cold front, strong winds developed ahead of and behind the front.

Kimball County 1 E Kimball 22 1717MST 2102MST 0 0 0.00K 0.00K Heavy Rain

Heavy rainfall in Kimball county produced considerable standing water. County road 37, two miles north and 1 mile west of Kimball was washed out by the heavy rainfall. Kimball County 1 E Kimball 22 1717MST 2202MST 0 0 0.00K Heavy Rain

At 1709MST law enforcement reported the drainage canal through Gotte Park is flooding, with water a few inches deep draining down portions of roadways. Lodgepole creek running at bank full.

Heavy rainfall on the already saturated ground from the plentiful seasonal snowfall and slow moving storms caused localized flooding for parts of the area.

229 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEVADA, North

NVZ034 Ruby Mountains/east Humboldt Range 02 1400PST 03 0200PST 0 0 0.00K 0.00K Heavy Snow

NVZ032 Southwest & South-Central Elko 02 1400PST 03 0230PST 0 0 0.00K Winter Weather

A winter storm dropped heavy snow in the Ruby Mountains and East Humboldt Range and also caused snow and ice covered roads across portions of Elko county.

NVZ034 Ruby Mountains/east Humboldt Range 04 2200PST 05 1400PST 0 0 0.00K 0.00K Heavy Snow

Seven to twelve inches of snow was reported across most of the Ruby Mountains and the East Humboldt Range.

NVZ013-037 Northern Nye - South Lander & South Eureka 11 1230PST 2130PST 0 0 0.00K 0.00K High Wind

A potent cold front approaching the area produced strong southerly winds across much of central Nevada. Wind gusts up to 64 mph were recorded.

20 1230PST 1500PST 0 0 0.00K High Wind

Southerly winds ahead of a strong cold front gusted up to 73 mph across central Nevada.

Humboldt County 3 SW Rose Creek 20 1245PST 1247PST 0 0 0.00K 0.00K Thunderstorm Wind (64MG)

A thunderstorm wind gust of 74 mph was reported at the Rose Creek Mesonet site.

Note: The measured wind gust of 64 knots is equivalent to 74 mph. Humboldt County (WMC)Winnemuca Muni 20 1300PST 1305PST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

A 61 mph thunderstorm wind gust was reported by the Winnemucca Airport ASOS.

Note: The measured wind gust of 53 knots is equivalent to 61 mph. Humboldt County 12 SE Orovada 20 1330PST 1333PST 0 0 0.00K 0.00K Thunderstorm Wind (58MG)

A 67 mph thunderstorm wind gust was reported at the Morey Creek RAWS.

Note: The measured wind gust of 58 knots is equivalent to 67 mph. Humboldt County 12 W Orovada Rio King Arp 20 1330PST 1332PST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)

A thunderstorm wind gust of 60 mph was reported by the Texas Springs RAWS.

A line of severe thunderstorms moved from southwest to northeast across Humboldt county along a strong cold front. Wind gusts between 60 and 74 mph were reported across the county. Note: The measured wind gust of 52 knots is equivalent to 60 mph.

230 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEVADA, North NVZ035-037 South Lander & South Eureka - White Pine 20 1400PST 1825PST 0 0 0.00K 0.00K High Wind

Southerly winds ahead of a strong cold front gusted up to 73 mph across central Nevada.

NVZ030-032-034> Humboldt - North Lander & North Eureka - Ruby Mountains/east Humboldt Range - South Lander & 037 South Eureka - Southwest & South-Central Elko - White Pine 27 0950PST 1433PST 0 2 0.00K 0.00K High Wind

NVZ030 Humboldt 27 1515PST 1645PST 0 0 0.00K 0.00K Dust Storm

NVZ031 North Elko County 27 1600PST 1742PST 0 0 0.00K 0.00K High Wind

NVZ032 Southwest & South-Central Elko 27 1700PST 2030PST 0 0 0.00K 0.00K Dust Storm

NVZ033 Extreme east Elko 27 1900PST 2115PST 0 0 0.00K 0.00K High Wind

A strong cold front produced high winds across northern and central Nevada. Numerous wind gusts over 60 mph were observed. The high winds produced widespread blowing dust across northern Nevada reducing visibility to 1/4 mile or less at times.

NEVADA, South

NVZ018 Sheep Range 04 2230PST 0 0 0.00K 0.00K High Wind

NVZ014-017-020 Esmeraldo/Central Nye - Las Vegas Valley - Sheep Range - Western Clark/Southern Nye

05 0034PST 1534PST 0 0 0.00K 0.00K High Wind

Another strong Pacific storm brought high west to southwest winds to much of the Mojave Desert and portions of the southern Great Basin. Isolated heavy snow also fell at the high elevations of the Sierra.

NVZ017 Western Clark/Southern Nye 20 1400PST 0 0 0.00K 0.00K High Wind

NVZ014 Esmeraldo/Central Nye 20 1430PST 1530PST 0 0 50.0K 0.00K Strong Wind

Esmeralda County Lida 20 1440PST 0 0 5.00K 0.00K Thunderstorm Wind (45EG)

Thunderstorm winds blew down a large pine tree onto Highway 266.

Note: The estimated wind gust of 45 knots is equivalent to 52 mph.

231 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEVADA, South Esmeralda County Silver Peak 20 1450PST 0 0 25.00K 0.00K Lightning

Lightning struck a transmission line, causing power outages.

NVZ015 Lincoln County except the Sheep Range 20 1841PST 0 0 0.00K 0.00K High Wind A cold Pacific storm system and associated cold front brought locally high winds to the Mojave Desert and southern Great Basin. The system also spawned a few thunderstorms which enhanced the gradient winds.

NVZ017-019-020 Las Vegas Valley - Spring Mountains - Western Clark/Southern Nye

27 1130PST 2324PST 0 0 0.00K 0.00K High Wind

NVZ020 Las Vegas Valley 28 1130PST 0 0 50.0K 0.00K Strong Wind

NVZ015-017-020 Las Vegas Valley - Lincoln County except the Sheep Range - Western Clark/Southern Nye

28 1253PST 1845PST 0 0 75.0K 0.00K High Wind

A powerful storm system brought widespread high winds to the Mojave Desert and southern Great Basin.

NEVADA, West

NVZ003 Greater Reno/Carson City/Minden Area 02 1100PST 2000PST 0 0 30.0K 0.00K Strong Wind

NVZ001 Mineral/Southern Lyon 02 1500PST 1900PST 0 0 0.00K High Wind

An intense and fast-moving system moved through Washington and Oregon on the 2nd and into Idaho on the 3rd. This resulted in strong winds for western and west-central Nevada on the 2nd.

NVZ003 Greater Reno/Carson City/Minden Area 23 0000PST 0800PST 0 0 10.0K 0.00K Dense Fog

Significant rain with a slow-moving upper low pressure system set the stage for dense fog on the morning of the 23rd.

NVZ001>004 Greater Lake Tahoe Area - Greater Reno/Carson City/Minden Area - Mineral/Southern Lyon - Western Nevada Basin and Range 27 0200PST 1700PST 0 0 265.0K 0.00K High Wind

A powerful storm slammed into the region on the 27th and 28th bringing extensive wind damage to the Reno-Carson City area along with a moderate snowfall to the Carson Range east of Lake Tahoe.

232 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW HAMPSHIRE, North and Central Merrimack County West Henniker 01 0000EST 1510EST 0 0 0.00K 0.00K Flood

Heavy rain at the end of March caused flooding on the Contoocook River at Henniker (flood stage 12.0 ft) which crested at 13.0 ft. Merrimack County 1 S Kelleys Corner 01 0000EST 1 NNE North Chichester 03 0258EST 0 0 0.00K 0.00K Flood

Heavy rain at the end of March caused flooding on the Suncook River at North Chichester (flood stage 7.0 ft) which crested at 11.7 ft. Rockingham County 1 ENE Newmarket 01 0000EST 03 0500EST 0 0 0.00K 0.00K Flood

Heavy rain at the end of March caused flooding on the Lamprey River at Newmarket (flood stage 8.0 ft.) which crested at 12.6 ft. Heavy rain caused flooding on several New Hampshire rivers at the end of March which lasted into April. Flooding was generally minor with no damage reported.

NEW HAMPSHIRE, Southern Hillsborough County Noone 01 0000EST Goffstown 2000EST 0 0 0.00K 0.00K Flood

Three to four inches of rain fell in Hillsborough County, resulting in several rivers going into minor flood, including the Contoocook at Peterborough, the Piscataquog at Goffstown, the Souhegan at Merrimack, and the Merrimack at Goffs Falls and at Nashua. Several streets were flooded in Wilton and Hudson. Rain running off High Street down a steep embankment into the Souhegan River in Greenville caused a mudslide that uprooted several trees and dislodged large boulders. Damage amounts can be found in the March Storm Data when most of the damage occurred. Rivers and small streams remained in flood into April.

A low pressure system sat just south of Long Island for two days, bringing heavy rain to much of Southern New England during that time. A persistent southerly low level jet brought very moist air into the area, which resulted in high rainfall rates. A coastal front along the I-95 corridor enhanced rainfall in that area. This event followed a heavy rainfall and record flooding event in mid-March as well as a second lesser rain event about a week prior. Rivers across much of Massachusetts and Rhode Island were still high from those events and warm temperatures in northern Vermont and New Hampshire resulted in a period of snowmelt, that resulted in rises on both the mainstem Connecticut and Merrimack Rivers. All of these factors led to a second record rainfall and flooding event. Two day rainfall totals across Southern New England ranged from an inch to ten inches. Though concentrated in Rhode Island and southeastern Massachusetts, all of Southern New England was affected by the flooding. In New Hampshire, two day rainfall totals ranged from three to four inches. Providence, Boston, and Blue Hill Observatory in Milton, MA set record monthly precipitation totals during the month of March. Providence also set the record for the wettest month ever in the period of record. Both the Pawtuxet River in Rhode Island and the Sudbury River in Massachusetts set floods of record. In mid to late May, a federal disaster was declared for Hillsborough County for the flooding in mid to late March.

NHZ011-015 Cheshire - Western and Central Hillsborough 29 1220EST 1315EST 0 0 25.0K 0.00K Strong Wind

Low pressure over the Canadian Maritimes produced winds gusts of 40 to 50 mph throughout southern New England, resulting in scattered wind damage.

233 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW JERSEY, South and Northwest Burlington County South Pemberton 01 0000EST 03 1200EST 0 0 0.00K 0.00K Flood

The North Branch of the Rancocas Creek at Pemberton was above its 2.5 foot flood stage from 715 p.m. EDT on March 29th through 100 p.m. EDT on April 3rd. It crested at 3.51 feet at 1230 p.m EDT on March 31st.

Cumberland County 2 WSW South Vineland 01 0000EST 02 2100EST 0 0 0.00K 0.00K Flood

The Maurice River at Norma was above its 4 foot flood stage from 9 a.m. EDT on March 30th through 10 p.m. EDT on April 2nd. It crested at 4.40 feet at 215 p.m. EDT on March 31st. Morris County 1 SSE Chatham 01 0000EST 04 1715EST 0 0 0.00K 0.00K Flood

The Rockaway River below the Boonton Reservoir was above its 5 foot flood stage from 615 p.m. EDT on March 29th through 616 a.m. EDT on April 2nd. It crested at 6.35 feet at 1015 a.m. EDT on March 31st. The Passaic River at Chatham was above its 6 foot flood stage from 1245 p.m. EDT on March 30th through 6 a.m. EDT on April 2nd. It crested at 6.34 feet at 700 p.m. EDT on March 30th. Farther downstream, the Passaic River at Pine Brook was above its 19 foot flood stage from 1107 a.m. EDT on March 30th through 615 p.m. EDT on April 4th. It crested at 20.23 feet at 800 a.m. EDT on April 1st.

Ocean County 1 N Parkway Pines 01 0000EST 1 ESE Greenville 0915EST 0 0 0.00K 0.00K Flood

The North Branch of the Metedeconk River near Lakewood was above its 7 foot flood stage from 430 p.m. EDT on March 29th through 1015 a.m. EDT on April 1st. It crested at 8.27 feet at 3 a.m. EDT on March 31st.

Salem County Norma 01 0000EST Willow Grove 02 2100EST 0 0 0.00K 0.00K Flood

The Maurice River at Norma was above its 4 foot flood stage from 9 a.m. EDT on March 30th through 10 p.m. EDT on April 2nd. It crested at 4.40 feet at 215 p.m. EDT on March 31st. Somerset County 1 SSE Griggstown 01 0000EST 2 N Sunset Hill Garden 2145EST 0 0 0.00K 0.00K Flood

The Millstone River at Griggstown was above its 10 foot flood stage from 808 a.m. EDT on March 29th through 1045 p.m. EDT on April 1st. It crested at 15.15 feet at 430 a.m. EDT on the 31st. Farther downstream, the Millstone River at Blackwells Mills was above its 9 foot flood stage from 400 p.m. EDT on March 30th through 755 a.m. EDT on April 1st. It crested at 11.89 feet at 645 a.m. EDT on March 31st. River and stream flooding from the heavy rain that fell on March 28th and 30th continued through April 4th in parts of Morris, Somerset, Burlington, Ocean, Salem and Cumberland Counties. Aside from the Passaic River at Pine Brook (Morris County) which crested on April 1st, all the other rivers and streams crested in March.

NJZ001-019 Northwestern Burlington - Sussex 07 1435EST 0800EST 0 2 0.00K 0.00K Wildfire

Unseasonably warm and dry weather coupled with gusty southwest winds made it easy for wildfires to spread in New Jersey on the 7th. Two large wildfires occurred in Burlington and Sussex Counties.

In Burlington County, a wildfire occurred at the intersection of Magnolia Road and New Jersey State Route 70 in Pemberton Township. The fire was reported at 335 p.m. EDT and was contained at 700 p.m. EDT. No traffic disruptions or evacuations were reported. Local firefighters remained on the scene to extinguish hot spots and flare ups.

234 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW JERSEY, South and Northwest

In Sussex County, a wildfire also occurred at the intersection of County Route 521 and Katey Lane in Frankford Township. The fire was located in a very remote area near Culver's Gap west of Lake Owassa. The fire was reported at 421 p.m. EDT. By early that evening, the fire continued to grow with an estimated 40 acres consumed. An extreme smoke condition existed. A precautionary evacuation of Kittatinny Lake Community took place. Two firefighters were treated for minor non-life threatening injuries. The Salvation Army supplied a water canteen for fire fighters at the scene. No forced evacuations and no danger to any structures occurred. The fire was contained the next day.

NEW MEXICO, Central and North

NMZ520-522>524- Central Highlands - Curry County - De Baca County - Eastern Lincoln County - Eastern San Miguel 526>537-539 County - Estancia Valley - Far Northeast Highlands - Guadalupe County - Harding County - Lower Rio Grande Valley - Northeast Highlands - Quay County - Raton Ridge/johnson Mesa - Roosevelt County - South Central Highlands - South Central Mountains - Union County

01 0155MST 1527MST 0 0 10.0K 0.00K High Wind

A strong storm system blew through New Mexico on April Fool's Day. Nearly all areas east of the central mountain chain recorded wind gusts that reached or exceeded 58 mph. Blowing dust reduced visibilities to around a mile in many locations.

NMZ505 West Central Plateau 05 1400MST 1700MST 0 0 High Wind

An approaching upper level trough tightened the mid level pressure gradient and helped to produce a few high wind gusts around Gallup.

NMZ515-523-529- Central Highlands - East Slopes Of The Sangre De Cristo Mountains - Northeast Highlands - Quay 534-536 County - Roosevelt County - South Central Highlands 06 0815MST 1800MST 0 0 High Wind

An upper level trough that brought isolated high winds to western New Mexico on the 5th produced more widespread high winds over central and eastern New Mexico on the 6th. The trough crossed the state on the 6th along with a strong surface cold front. Chaves County 3 SSW Hagerman 11 1830MST 1840MST 0 0 Hail (1.00)

Nickel sized hail was reported at 630pm MST and quickly grew to Quarter size hail and continued until 740pm MST. The hail covered the ground. Chaves County 5 SW Hagerman 11 1839MST 0 0 Hail (1.00)

A dry line over southeast New Mexico set up a boundary for an isolated severe thunderstorm near Hagerman in southeast Chaves County. Lincoln County San Patricio 12 1610MST 0 0 0.00K 0.00K Hail (1.75)

Increased moisture ahead of a short wave trough over the Great Basin streamed into central and eastern New Mexico. This helped to produce isolated showers and thunderstorms, one of which turned severe near San Patricio.

NMZ528>530 Far Northeast Highlands - Northeast Highlands - Union County

13 1055MST 1306MST 0 0 High Wind

An approaching upper level trough of low pressure and a surface cold front combined to cause several reports of high winds from Clines Corners to Las Vegas and Raton, east to Clayton.

235 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW MEXICO, Central and North San Miguel County 1 E Bell Ranch 13 1725MST 1735MST 0 0 Hail (1.75)

Hail ranged from quarter to golf ball size and lasted from 525 pm to 535 pm MST.

Union County 1 W Pasamonte 13 1748MST 0 0 Hail (0.88)

San Miguel County 14 NE Bell Ranch 13 1750MST 0 0 Hail (1.50)

Union County 1 W Pasamonte 13 1750MST 1753MST 0 0 Hail (1.00)

Quarter size hail lasted for roughly 3 minutes. An upper level trough of low pressure and surface cold front increased instability and lift across northeast New Mexico, with plenty of low level moisture available. This led to a few reports of large hail over San Miguel and Union Counties.

Union County 4 E Amistad 14 1615MST 0 0 0.00K 0.00K Hail (1.25)

Union County 1 E Clayton 14 1628MST 0 0 0.00K 0.00K Hail (0.88)

Union County 4 N Amistad 14 1630MST 0 0 0.00K 0.00K Hail (1.00)

KVII TV in Amarillo relayed a report of quarter size hail by a SchoolNet observer.

Widespread showers and thunderstorms developed along the east slopes of the central mountain chain and moved eastward across the plains. A few storms pulsed up and dropped hail across Union county.

Rio Arriba County 3 NNW Chama 17 1800MST 18 1100MST 0 0 5.00K 0.00K Flood

Rising water from the Rio Chamita resulted in flooding of yards, storage sheds and possibly a barn on the west side of Chama. No homes were flooded. Widespread heavy rains fell across the northwest mountains during the early morning hours of the 17th, including an inch of rain that fell in Chama. The heavy rain on existing snow pack caused the Rio Chamita to flood, west of Chama.

Harding County Roy 21 1646MST 0 0 0.00K 0.00K Hail (0.88)

Isolated storms developed during the mid afternoon hours and moved northeast dropping nickel size hail in Roy.

NMZ526 South Central Mountains 22 1035MST 1135MST 0 0 High Wind

NMZ523 Central Highlands 23 0015MST 0 0 High Wind A strong storm system moved into Arizona on the 22nd and re-organized over Southeast Colorado on the 23rd. Isolated high winds were recorded east and south of the storm, near Clines Corners and Ruidoso.

NMZ518 Santa Fe Metro Area 25 1500MST 1510MST 0 0 0.5K Strong Wind

236 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW MEXICO, Central and North

Strong wind gusts blew the roofs off of two commercial greenhouses on the far southwest side of Santa Fe.

NMZ505-515-523- Central Highlands - East Slopes Of The Sangre De Cristo Mountains - Northeast Highlands - South 526-529 Central Mountains - West Central Plateau 28 1310MST 0235MST 0 0 High Wind

NMZ505-511-516- Albuquerque Metro Area - Central Highlands - Far Northeast Highlands - Jemez Mountains - Lower Rio 519-523-526-528> Grande Valley - Northeast Highlands - South Central Mountains - Upper Rio Grande Valley - West 529 Central Plateau 29 0355MST 1353MST 0 0 12.0K High Wind

A slow-moving, deep trough of low pressure moved inland on the 28th and was over Arizona on the 29th. High winds developed ahead of this system, impacted large areas of northern and central New Mexico. Hardest hit was the South Central Mountains.

NMZ518 Santa Fe Metro Area 29 1300MST 0 0 1.5K Strong Wind

NMZ527-533-538- Chaves County Plains - Guadalupe County - Quay County - Raton Ridge/johnson Mesa - Southwest 540 Chaves County 29 1409MST 1753MST 0 0 30.0K High Wind

A slow-moving, deep trough of low pressure was over Arizona on the 29th. High winds developed ahead of this system for the second day in a row, this time impacting a much greater area of northern and central New Mexico.

NEW MEXICO, South Central and Southwest

NMZ023-032 Sierra County Lakes Region - Southern Desert - Tularosa Basin/Southern Desert

01 1100MST 2000MST 0 0 20.0K 0.00K High Wind

A strong Pacific trough moving into the desert southwest brought a cold front through the region with wind gusts up to 96 mph.

Sierra County 1 NNW Winston 18 1400MST 1405MST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail was reported in Winston. Southeasterly surface winds behind a weak back door cold front provided enough lift and moisture over the Blacks Range for isolated thunderstorms to develop over Sierra County.

NMZ031 Southwest Desert Mimbres Basin 22 1600MST 2000MST 0 0 0.00K 0.00K High Wind

A deep upper low centered over the Las Vegas area helped to bring a strong cold front through the region with strong westerly winds behind it.

NMZ022>025-030- Sierra County Lakes Region - Southern Desert - Southern Sacramento Mountains - Southwest 032 Desert/Boothill - Southwest Mountains/Lower Gila Region - Tularosa Basin/Southern Desert 29 1200MST 2000MST 0 0 15.0K 0.00K High Wind

A deep upper low moving across the Rockies had a 130 knot jet streak moving around the base of it into southern New Mexico. A strong surface low deepened over the Oklahoma panhandle with winds ahead of a strong cold front gusting up to 95 MPH.

237 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW MEXICO, Southeast NMZ028 Eddy County Plains 06 0800MST 1100MST 0 0 0.00K 0.00K High Wind

Strong mid level winds ahead of an approaching upper trough resulted in high winds in the Guadalupe Mountains.

23 1353MST 1453MST 0 0 0.00K 0.00K High Wind

Strong mid level winds associated with a potent upper air trough imparted strong surface winds to the Guadalupe Mountains, Davis Mountains and portions of the southeast New Mexico plains.

NMZ027-028 Eddy County Plains - Guadalupe Mountains of Eddy County 29 0400MST 1910MST 0 0 30.0K 0.00K High Wind

Strong mid level winds preceding the arrival of an upper air trough resulted in strong winds across southeast New Mexico.

NEW YORK, Central Broome County 2 ESE Edson 08 1846EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Several trees and wires were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Broome County Vestal 08 1855EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Large trees were blown down, which damaged a fence and property.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Broome County 1 SSW Binghamton 08 1855EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Several trees were blown down in the city. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Broome County Vestal 08 1900EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Fifteen to twenty large, mature trees and wires were blown down, with damage to homes and property.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Broome County Kirkwood 08 1905EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Several trees and wires were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Broome County Conklin 08 1910EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Dime sized hail blown by high winds broke windows. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Delaware County 1 SW Sidney 08 1950EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down near Sidney and Franklin. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

238 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, Central Delaware County 1 N Franklin 08 1955EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down in Franklin. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Delaware County Walton 08 2005EST 0 0 3.00K 0.00K Thunderstorm Wind (50EG)

Trees were blown down in several locations across Delaware county.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Broome County 5 N Binghamton 08 2030EST 0 0 35.00K 0.00K Lightning

Lightning hit a tree, and then a storage shed at the Binghamton Mobile Estates. The flames spread to two mobile homes, and both sustained serious damage. One home was deemed unsafe to live in.

Unseasonably warm temperatures were in place ahead of a strong cold front that moved through the region on the afternoon and evening of April 8. Several storms produced damaging winds and large hail.

NEW YORK, East

NYZ054-059>061- Eastern Columbia - Eastern Dutchess - Eastern Greene - Eastern Rensselaer - Southeast Warren - 065>066-083>084 Southern Washington - Western Columbia - Western Dutchess 12 0100EST 0700EST 0 0 0.00K 0.00K Frost/Freeze

Much above normal temperatures during early April resulted in an early start to the growing season across portions of east central New York. With mostly clear skies, light winds and a cool airmass in place, temperatures fell into upper 20s to lower 30s during the early morning hours of Monday, April 12th across portions of east central New York, including the Taconics, and across Dutchess, Columbia, eastern Greene, eastern Rensselaer, southern Washington and southeastern Warren counties.

NYZ041-043-049- Eastern Columbia - Eastern Rensselaer - Eastern Schenectady - Northern Saratoga - Northern 054-061-083>084 Washington - Southeast Warren - Southern Saratoga - Southern Washington 13 0100EST 0700EST 0 0 0.00K 0.00K Frost/Freeze

Much above normal temperatures during early April resulted in an early start to the growing season across portions of east central New York. With mostly clear skies, light winds and a cool airmass in place, temperatures fell into mid 20s to lower 30s during the early morning hours of Tuesday, April 13th across portions of east central New York, including the northern and central Taconics and across Saratoga, Washington, southeastern Warren, and eastern Schenectady counties.

14 0100EST 0730EST 0 0 0.00K 0.00K Frost/Freeze

NYZ043-049-052> Eastern Albany - Eastern Columbia - Eastern Dutchess - Eastern Greene - Eastern Rensselaer - Eastern 054-059>061-064> Schenectady - Eastern Ulster - Northern Washington - Southeast Warren - Southern Saratoga - Southern 066-083>084 Washington - Western Columbia - Western Dutchess - Western Rensselaer 14 0100EST 0730EST 0 0 0.00K 0.00K Frost/Freeze

Much above normal temperatures during early April resulted in an early start to the growing season across portions of east central New York. With mostly clear skies, light winds and a cool airmass in place, temperatures fell into mid 20s to lower 30s during the early morning hours of Wednesday, April 14th across portions of east central New York, including the upper and mid Hudson Valleys and the Taconics.

239 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, East NYZ047-050-053- Eastern Columbia - Eastern Dutchess - Eastern Greene - Eastern Rensselaer - Eastern Ulster - Schoharie - 059>061-064>066- Southeast Warren - Southern Saratoga - Southern Washington - Western Columbia - Western Dutchess - 083>084 Western Rensselaer 15 0100EST 0700EST 0 0 0.00K 0.00K Frost/Freeze

Much above normal temperatures during early April resulted in an early start to the growing season across portions of east central New York. With mostly clear skies, light winds and a cool airmass in place, temperatures fell into mid 20s to lower 30s during the early morning hours of Thursday, April 15th across portions of east central New York, including the Taconics, mid Hudson Valley, Schoharie Valley, and across western Rensselaer, southern Washington, southern Saratoga and southeastern Warren counties.

NYZ054-060-065> Eastern Columbia - Eastern Dutchess - Eastern Rensselaer - Western Columbia - Western Dutchess 066 20 0000EST 0700EST 0 0 0.00K 0.00K Frost/Freeze

Much above normal temperatures during early April resulted in an early start to the growing season across portions of east central New York. With mostly clear skies and light winds, temperatures fell into upper 20s to lower 30s during the early morning hours of Tuesday, April 20th across portions of east central New York, including Dutchess, Columbia and eastern Rensselaer counties.

NYZ039>041-043- Eastern Albany - Eastern Columbia - Eastern Dutchess - Eastern Greene - Eastern Rensselaer - Eastern 047-049>050-052> Schenectady - Montgomery - Northern Saratoga - Northern Washington - Schoharie - Southeast Warren - 054-059>061-065> Southern Fulton - Southern Saratoga - Southern Washington - Western Columbia - Western Dutchess - 066-083>084 Western Rensselaer

24 0300EST 0700EST 0 0 0.00K 0.00K Frost/Freeze

Much above normal temperatures during early April resulted in an early start to the growing season across portions of east central New York. The combination of clear skies, light winds and a cold, dry airmass allowed temperatures to drop into the mid 20s to lower 30s during the early morning hours of Saturday, April 24th across portions of east central New York, including Ducthess, Columbia, Rensselaer, Washington, Saratoga, Montgomery, southern Fulton, Schoharie, eastern Schenectady, eastern Albany, eastern Greene, and southeastern Warren counties.

NYZ083 Southeast Warren 27 2300EST 28 0700EST 0 0 0.00K 0.00K Frost/Freeze

NYZ039-047-054- Eastern Columbia - Eastern Dutchess - Eastern Rensselaer - Schoharie - Southern Fulton - Southern 061-065-084 Washington - Western Dutchess 28 0000EST 0700EST 0 0 0.00K 0.00K Frost/Freeze

Much above normal temperatures during early April resulted in an early start to the growing season across portions of east central New York. An unseasonably cold airmass was in place across the region, allowing temperatures to fall into the upper 20s and lower 30s during the early morning hours of Wednesday, April 28th across portions of east central New York, including Dutchess, eastern Columbia, eastern Rensselaer, southern Washington, southeastern Warren, southern Fulton and Schoharie counties. An accumulating snowfall even occurred mainly at elevations above 1000 feet.

29 0000EST 0700EST 0 0 0.00K 0.00K Frost/Freeze

240 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, East NYZ041-054-060- Eastern Columbia - Eastern Rensselaer - Northern Saratoga - Southeast Warren - Southern Washington - 083>084 Western Columbia 29 0000EST 0700EST 0 0 0.00K 0.00K Frost/Freeze

NYZ083 Southeast Warren 29 0900EST 0 0 1.0K 0.00K Strong Wind Much above normal temperatures during early April resulted in an early start to the growing season across portions of east central New York. With clearing skies, diminishing winds and an unseasonably cold airmass in place, temperatures fell into the upper 20s to lower 30s during the early morning hours of Thursday, April 29th across portions of east central New York, including Columbia, eastern Rensselaer, southern Washington, northern Saratoga, southeastern Warren and southern Fulton counties. In addition, the combination of a tight pressure gradient, and the passage of a strong upper level atmospheric disturbance resulted in strong and gusty winds during Thursday, with some gusts approaching 50 mph.

NYZ040-054-083- Eastern Rensselaer - Montgomery - Southeast Warren - Southern Washington 084 30 0000EST 0700EST 0 0 0.00K 0.00K Frost/Freeze

Much above normal temperatures during early April resulted in an early start to the growing season across portions of east central New York. With clearing skies, diminishing winds and an unseasonably cold airmass in place, temperatures fell into the mid 20s to lower 30s during the early morning hours of Friday, April 30th across portions of east central New York, including eastern Rensselaer, southern Washington, southeastern Warren and Montgomery counties.

NEW YORK, North

NYZ029>031-034 Southeastern St. Lawrence - Southern Franklin - Western Clinton - Western Essex

27 0400EST 28 0900EST 0 0 35.0K 0.00K Winter Storm

NYZ026>028-035 Eastern Clinton - Eastern Essex - Northern Franklin - Northern St. Lawrence

27 0500EST 28 0800EST 0 0 30.0K 0.00K Winter Weather

Surface low pressure across the Ohio River Valley on April 26th slowly moved across the southern New England coast into the Gulf of Maine on the 27th and 28th. Meanwhile, a cold, strong upper atmospheric area of low pressure moved from Quebec across northern New England. This resulted in an abnormally cold, unstable and moist air mass across northern New York which produced largely orthographically enhanced snowfall across the higher terrain of the northern Adirondacks, northern Champlain Valley and northern St. Lawrence River Valley. The snow began by daybreak on the 27th and slowly diminished during the morning of the 28th with accumulations of a heavy, wet snow that ranged from 4 to 8 inches in the valleys with 8 to 20 inches above 1000 feet in favored northwest facing slope communities. This heavy wet snowfall resulted in scattered power outages that affected over 5000 customers. Some specific snowfall totals included; 5 inches in Potsdam (St. Lawrence county), 7 inches in Champlain (Clinton county) and Childwold (St. Lawrence county), 9 inches in Lake Placid (Essex county), 14 inches in South Colton (St. Lawrence county) and Malone (Franklin county) with 16 inches at Lyon Mountain (Clinton county), 18 inches at Chasm Falls (Franklin county) and 19.5 inches in Dannemora (Clinton county).

241 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NEW YORK, West Chautauqua County 1 ESE Dunkirk 06 1427EST 0 0 8.00K 25.00K Hail (1.00)

A warm front slowly lifted north across the region during the early afternoon. A thunderstorm accompanying the front produced one-inch hail just outside of Dunkirk.

Erie County 1 NE Clarence Center 07 0908EST 0 0 5.00K 0.00K Hail (1.00)

Erie County 1 SE Williamsville 07 0908EST 0 0 0.00K 0.00K Hail (0.75)

A cold front crossed the region during the morning. A thunderstorm accompanying the front produced a one-inch hail in near Clarence. At the Buffalo National Weather Service Office located adjacent to the Buffalo"Niagara Airport, three-quarter inch hail fell.

NORTH CAROLINA, Central Forsyth County 1 E Winston Jct 08 1827EST 1 SSW Guthrie 1830EST 0 0 0.00K 1.00K Thunderstorm Wind (50EG)

Numerous trees were blown down in and around Winston-Salem. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Davidson County 1 NE Thomasville 08 1847EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

One tree was blown down at the intersection of East Street and Unity Street in downtown Thomasville.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Guilford County 2 SE Colfax 08 1853EST 1 NE Mc Leansville 1925EST 0 0 0.00K 1.00K Thunderstorm Wind (50EG)

Several trees were reported blown down along this swath. Power-lines were also reported down at Lake Brandt Road and Highway 150. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Orange County 2 N Mc Dade 08 1955EST 1 N Etland 2000EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Two trees were reported blown down near the intersection of Brookhollow Road at Lebanon Road and Highway 86 at Efland- Cedar Grove Road. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Person County Roxboro 08 2000EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

One tree was blown down along Allensville Road with a reported Accident along Highway 501 South.

Scattered showers and thunderstorms developed over the North Carolina mountains and foothills during the afternoon before moving into the western Piedmont during the evening. The storms were focused along a strong low-level jet, in advance of an upper level trough and attendant surface cold front. A dry boundary layer featuring surface dewpoints in the 50s combined with steep lapse rates supported an increase wind threat. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

Wake County Rockton 25 1859EST 1906EST 3.87 75 0 0 250.00K 25.00K Tornado (EF0)

242 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH CAROLINA, Central

The tornado initially touched down near Bell Street just west of Glaxo-Smith-Klein and the Zebulon municipal building. Both of these facilities experienced large fallen trees which damaged fencing but no structural damage occurred to any of the buildings. One oak tree at the municipal building was around 4 feet in diameter. The tornado moved east across Highway 96/North Arendell Avenue where it caused minor damage to several businesses in the Triangle East Center. A McDonald's, Pizza Hut and other businesses in the shopping center experienced very minor damage. A four hundred pound condenser on the roof of the McDonald's was moved sideways. A couple of vehicles in the shopping center parking lot were moved about 10-15 feet and a number of vehicles had their windows shattered by debris from the tornado. Tornado wind speeds in the shopping center were around 70 mph. The tornado crossed Highway 64/264 near Shepards School Road traveling parallel to Highway 64/264 before crossing Old Bunn Road. Numerous trees were blown down and one shed was destroyed along Old Bunn Road. The strongest tornado damage was evident at 1311 Old Bunn Road where a home sustained a fair amount of minor roof damage when a carport collapsed and numerous outbuildings were destroyed by a combination of tornadic winds and falling trees. Winds in this area were estimated at around 80 mph. After striking the residence on Old Bunn Road the tornado again crossed highway 64 eventually crossing Parks Village Road where another large hardwood fell destroying an outbuilding. The tornado then moved into a swampy area before crossing Highway 39 just north of the intersection of Highway 39 and Highway 97. Numerous trees at a residence on Highway 39 were uprooted or snapped. A home in the area lost several shingles and some siding was damaged. Winds in this area were around 70 to 75 mph. The tornado moved into southern Franklin County for a short distance before lifting off the ground.

Nash County 4 WNW Fraziers Xrds 25 1912EST 0 0 5.00K 0.00K Hail (1.00)

Residents on Worth Road reported quarter-size hail. The hail broke a window and cracked vinyl siding on a mobile home.

Nash County 4 WNW Fraziers Xrds 25 1915EST 0 0 2.50K 0.00K Thunderstorm Wind (56EG)

Straight line winds damaged a carport/storage shed on Worth Road.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

Carport and garage overturned by straight line wind on Worth Road near Spring Hope. Photo courtesy of National Weather Service Raleigh. Nash County 1 NNE Nashville 25 1936EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

A big limb from an Oak tree fell on the deck and part of a shed at a residence on Boddie Street.

An isolated cell formed over Moore County in advance of a strong surface cold front in a high shear and moderate CAPE environment. The lone storm strengthened into a super cell over central Wake County before it produced a weak EF0 tornado near Zebulon in eastern Wake County. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

243 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH CAROLINA, Extreme Southwest Clay County Hayesville 25 0200EST 0210EST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Law enforcement personnel reported one tree downed by thunderstorm winds on Jarrett Road in Hayesville.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Clay County 2 NNE Hayesville 25 0200EST 0205EST 1.5 60 0 0 20.00K 0.00K Tornado (EF1)

The tornado began north of Hayesville as an EF0 rating with a maximum wind speed of 65 mph and a damage path of 20 yards. It strengthened to an EF1 rating with a maximum wind speed of 90 mph and a damage path of 60 yards. The tornado weakened to an EF0 rating with a maximum wind speed of 65 mph and a damage path of 10 yards before dissipating. The path length was 1.5 miles. A strong low pressure system along with an associated cold front tracked across the area triggering thunderstorms during the overnight hours. A tornado touched down in Clay County.

Twisted and snapped trees just north of Hayesville, North Carolina. Photo courtesy of Tim Troutman, National Weather Service, Morristown, TN.

NORTH CAROLINA, North Coastal Chowan County 1 ESE Edenton 09 0330EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Several buildings had minor roof damage on the east side of Edenton. Building was shifted off its foundation on the corner of Oakum and Gale Streets. Chimney was damaged on the Barker House downtown. A couple of tall trees were downed.

Isolated severe thunderstorm produced damaging winds across portions of northeast North Carolina. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. NORTH CAROLINA, Northwest and North Central Stokes County 3 ENE Sandy Ridge 05 1745EST 1755EST 0 0 3.00K Thunderstorm Wind (70EG)

A roof was torn off a large garage. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Stokes County 3 NE Sandy Ridge 05 1745EST 1800EST 0 0 3.00K 0.00K Thunderstorm Wind (70EG)

A roof and siding material was torn off sheds and a mobile home porch. A small shed was also destroyed and a few trees snapped off. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. 244 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH CAROLINA, Northwest and North Central Rockingham County 1 S Reidsville 05 1835EST 1840EST 0 0 Hail (1.00)

Rockingham County 1 S Reidsville 05 1835EST 1845EST 0 0 5.00K Thunderstorm Wind (70EG)

Trees were reported down in western Rockingham County. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Rockingham County 1 S Reidsville 05 1836EST 1845EST 0 0 Hail (1.00)

Thunderstorms moving southeast out of Virginia became severe over parts of the North Carolina piedmont in the early evening of April 5th, with some strong wind gusts the main feature.

Wilkes County 1 SSE Thurmond 08 1723EST 1745EST 0 0 3.00K 0.00K Thunderstorm Wind (60EG)

Numerous trees were brought down on Center Church Road in the State Road community.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Wilkes County Thurmond 08 1723EST 1745EST 0 0 3.00K 0.00K Thunderstorm Wind (55EG)

Numerous trees were brought down at the intersection of Thurmond Road and Haystack Road.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Surry County 2 N State Rd 08 1725EST 1735EST 0 0 5.00K 0.00K Thunderstorm Wind (60EG)

A mobile home shifted on its foundation on Thurmond Road. A roof was blown off a home on Zephyr Mountain Park Road and other buildings damaged. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Surry County 1 S Mountain Park 08 1726EST 1736EST 0 0 3.00K 0.00K Thunderstorm Wind (55EG)

One tree and a few power lines were blown down at Mountain Park Road and North Hays Road.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Wilkes County 1 SSW Thurmond 08 1727EST 1735EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Several trees were reported down on Zephyr Mountain Park Road.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Wilkes County 5 E Traphill 08 1727EST 1735EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Several trees were down and a chicken house was destroyed on Roaring Gap Rd.

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

245 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH CAROLINA, Northwest and North Central Stokes County 4 NNE Pine Hall 08 1730EST 1745EST 0 0 3.00K 0.00K Thunderstorm Wind (55EG)

A power pole was snapped by thunderstorm winds along Madison Road.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Surry County 3 WSW Dobson 08 1735EST 1745EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A tree down was blown down by thunderstorm winds near Zephyr Road and White Road.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Surry County 2 NNE Dobson 08 1739EST 1745EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

One tree was blown down by thunderstorm winds on Old Highway 61.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Surry County 5 E Dobson 08 1742EST 1750EST 0 0 5.00K 0.00K Thunderstorm Wind (55EG)

A large tree brought down power lines at the intersection of Siloam Road and Ararat Road.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Rockingham County 1 N Madison 08 1745EST 1800EST 0 0 0.50K 0.00K Thunderstorm Wind (55EG)

Two trees were knocked down on Ayersville Road between Mayodan and Madison.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Rockingham County 4 ENE Stoneville 08 1800EST 1815EST 0 0 0.30K 0.00K Thunderstorm Wind (50EG)

A tree was reported down on Price Grange Road and Barns Road.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Caswell County 3 S Camp Spgs 08 1920EST 1930EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A tree was blown down and blocked a road. A large upper level low centered over Illinois pushed east into the Ohio Valley with an associated cold front tracking east into a warm and unstable air mass. Surface dew points surged into the 60s into North Carolina as low level winds veered producing wind shear sufficient for severe storms. There were frequent wind gusts in excess of 50 knots, causing damage mainly to trees and small structures. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

NORTH CAROLINA, South Coastal Robeson County 3 S Lumberton 27 1535EST 1540EST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail and a wind gust estimated to 50 mph was reported by a trained spotter. The hail lasted for five minutes.

246 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH CAROLINA, South Coastal Robeson County 4 SW Allenton 27 1545EST 1550EST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail was reported along Long Branch Drive. The hail lasted for five minutes.

Cold pool associated with an area of low pressure aloft and surface heating steepened lapse rates across the area. An approaching shortwave helped to develop thunderstorms west of Interstate 95 during the mid afternoon. These thunderstorms quickly intensified as they moved east at up to 50 mph.

NORTH CAROLINA, Southwest

NCZ059 Northern Jackson 07 1400EST 0 0 100.0K Wildfire A wildfire destroyed a home on Bradley Branch Rd.

Cleveland County 1 ESE Lawndale 08 1733EST 1 ESE Belwood 1737EST 0 0 30.00K 0.00K Thunderstorm Wind (60EG)

Straight line winds affected an area between Lawndale and Belwood. Several trees were uprooted, one of which fell on a manufactured home on West Stagecoach Trail just west of Lawndale. In addition, half the roof was blown off a barn on Old Belwood Rd. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Cleveland County 2 E Double Shoals 08 1734EST 0 0 Hail (0.88)

Lincoln County 1 SSE Reepsville 08 1750EST 0 0 Thunderstorm Wind (50EG)

Trees and power lines were blown down about 3 miles southeast of Vale.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Iredell County 3 SE Statesville 08 1815EST 0 0 Thunderstorm Wind (50EG)

Trees were blown down in a roadway about 3 miles southeast of Statesville.

A strong cold front produced a band of heavy rain and some embedded severe thunderstorms. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Macon County 2 SE Franklin 25 0225EST 0 0 Thunderstorm Wind (55EG)

Several trees and power lines were blown down in and around the city, with one tree down on a home.

A fast moving, narrow line of showers and thunderstorms along a cold front caused a small area of wind damage in the North Carolina Mountains. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Cleveland County 1 W Metcalf 27 1310EST 0 0 Hail (0.88)

Nickel size hail was reported at the intersection of highway 226 and Yates Rd.

Union County 3 SW Waxhaw Arpt 27 1500EST 0 0 Hail (0.75)

Dime size hail was reported along Maggie Robinson Rd. An upper low triggered scattered afternoon thunderstorms, a few of which produced small hail.

247 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH DAKOTA, Central and West

NDZ020>022-034> Burleigh - Grant - Mclean - Morton - Oliver - Sheridan - Sioux 035-042-045 02 0400CST 1700CST 0 0 36.0M 0.00K Winter Storm

NDZ012-019-023- Emmons - Kidder - McHenry - Mercer - Wells 036-046 02 0400CST 1700CST 0 0 115.0K 0.00K Winter Weather

A significant and damaging early spring storm severely impacted much of south central North Dakota on Good Friday, April 2nd. Widespread damages to electrical utilities and nearly impossible travel conditions were common. A strong mid level disturbance and area of surface low pressure, embedded within an eastward advecting long wave trough, lifted northeast through the central Rockies April 1st and into the Upper Mississippi Valley April 2nd. Well above freezing temperatures ahead of the main storm resulted in precipitation beginning as all rain Thursday, April 1st. Due to the strength of the mid level low and steep mid level lapse rates, convective precipitation bands and scattered thunderstorms developed late Thursday night into early Friday across south central North Dakota, dramatically increasing the dynamic cooling of the atmosphere. This dynamic cooling, combined with strong cold air advection on the back side of the surface low, resulted in the moderate to heavy rain bands across the south central to eventually change over to a mix of sleet and heavy wet snow by daybreak Friday morning. Moderate to heavy snow and sleet then continued into early Friday afternoon before gradually changing back over to rain and dissipating by Friday evening. In addition, wind gusts to near 40 mph developed Friday morning and continued through much of the day as the surface low tightened the pressure gradient across the region. A band of six to twelve inches of heavy wet snow fell from Grant and Morton counties through parts of Burleigh, McLean, and Sheridan counties. Snowfall amounts quickly dropped off west, north, and east of this area. Numerous road closures and no travel advisories were issued by county and state officials due to several inches of snow and slush coating roads. Most significant was the widespread utility damage that occurred, resulting in massive power outages to thousands of customers. The combination of heavy wet snow sticking to power lines and poles and the strong winds, resulted in thousands of power poles and hundreds of high voltage transmission towers collapsing. Preliminary damage assessments from this storm exceeded thirty-five million dollars.

NDZ018-031>033- Adams - Billings - Bowman - Dunn - Golden Valley - Hettinger - Slope - Stark 040>041-043>044 08 2300CST 09 0000CST 0 0 0.00K 0.00K High Wind

Strong pressure rises moving into western North Dakota resulted in short-lived and isolated wind gusts to near 60 mph during the late evening hours of Thursday, April 8th, through the early morning hours of Friday, April 9th.

Mcintosh County 6 WSW Ventura 12 0855CST 0910CST 0 0 0.00K 0.00K Hail (1.50)

Mcintosh County 10 E Ashley 12 0955CST 1001CST 0 0 0.00K 0.00K Hail (1.00)

Dickey County 4 E Forbes 12 1110CST 1114CST 0 0 0.00K 0.00K Hail (1.00)

Thunderstorms developed during the mid morning hours of April 12th across portions of south central North Dakota in response to an approaching short wave trough and isentropic ascent ahead of a warm front draped across northern South Dakota. Three reports of large hail were received from the mid morning through the early afternoon.

248 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH DAKOTA, Central and West Ward County 7 SW Minot 13 0010CST 0020CST 0 0 0.00K 0.00K Hail (1.50)

Ward County Burlington 13 0032CST 0037CST 0 0 0.00K 0.00K Hail (0.75)

Bottineau County 4 E Kramer 13 0156CST 0159CST 0 0 0.00K 0.00K Hail (0.88)

Nocturnal thunderstorms associated with steep mid level lapse rates and increasing boundary layer moisture developed across portions of north central North Dakota during the early morning hours of the 13th. Three reports of large hail were received.

Mchenry County 4 S Bergen 13 1000CST 1005CST 0 0 0.00K 0.00K Hail (1.00)

Dunn County 1 W Halliday 13 1315MST 1323MST 0 0 15.00K 0.00K Thunderstorm Wind (52EG)

Tree damage from thunderstorm winds was reported near Halliday.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Morton County Mandan 13 1600CST 1615CST 0 1 25.00K 0.00K Thunderstorm Wind (52EG)

High winds from thunderstorms caused a large tree to fall on a mobile home in Mandan. One person in the home received minor injuries. Time is estimated. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Morton County 7 ENE Sweet Briar 13 1600CST 1615CST 0 0 25.00K 0.00K Thunderstorm Wind (52EG)

High winds from thunderstorms toppled two tandem trailers on a semi along Interstate 94 west of Mandan. The location and time are estimated. In the early afternoon hours of April 13th, Severe Thunderstorm Watch 70 was issued for portions of western and central North Dakota in anticipation of severe thunderstorms developing downstream of a strong upper level trough, and in the vicinity of an eastward moving cold front. Due mainly to relatively low instability parameters, only marginal severe thunderstorms developed. One report of large hail and three reports of severe thunderstorm winds were received. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

NDZ048 La Moure 28 1539CST 1547CST 0 0 30.0K 0.00K High Wind

Areas of showers allowed an isolated damaging wind gust to reach the surface over LaMoure County in southeast North Dakota. A strong synoptic low pressure system produced wind advisory criteria winds further west across central portions of the state. Mcintosh County Ashley 30 1325CST 1333CST 0 0 0.00K 0.00K Hail (1.00)

Mcintosh County 4 E Wishek 30 1330CST 1338CST 0 0 0.00K 0.00K Hail (0.88)

249 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

NORTH DAKOTA, Central and West Mcintosh County 7 NE Ashley 30 1355CST 1403CST 0 0 0.00K 0.00K Hail (0.75)

An isolated severe thunderstorm moving across south central North Dakota resulted in three large hail reports over McIntosh County.

NORTH DAKOTA, East Richland County 17 WNW Walcott 01 0000CST Lithia 12 1142CST 0 0 0.00K 0.00K Flood

Water levels remained high through the early part of April, especially along the Red River. One saving grace from even higher water levels was a general precipitation deficit. Between the fourth and the twenty-eighth, there were only two days (12th/13th) with measurable precipitation at the first order climate reporting sites of Grand Forks and Fargo. Even then, only 0.39 inches of rain fell at both cities. The lack of additional moisture allowed the overland flooding to slowly subside.

Grand Forks County 7 W Forest River Colony 01 0000CST 8 N Manvel 12 1151CST 0 0 0.00K 0.00K Flood

Pembina County 4 N Walhalla Arpt 01 0000CST 1 NNW Pembina 12 1151CST 0 0 0.00K 0.00K Flood

Ransom County 8 NW Ft Ransom 01 0000CST 3 S Coburn 12 1142CST 0 0 0.00K 0.00K Flood

Sargent County 6 NNW Crete 01 0000CST 2 ENE De Lamere 12 1142CST 0 0 0.00K 0.00K Flood

Walsh County 1 W Hoople 01 0000CST 2 ENE Herrick 12 1151CST 0 0 0.00K 0.00K Flood

Water levels remained high through the early part of April, especially along the Red River. One saving grace from even higher water levels was a general precipitation deficit. Between the fourth and the twenty-eighth, there were only two days (12th/13th) with measurable precipitation at the first order climate reporting sites of Grand Forks and Fargo. Even then, only 0.39 inches of rain fell at both cities. The lack of additional moisture allowed the overland flooding to slowly subside.

Sargent County 4 SW Brampton 30 1615CST 0 0 Hail (0.88)

Some late day heating and a cold pool aloft combined with an upper level disturbance to produce hail.

OHIO, East Jefferson County Reeds Mills 16 1425EST Steubenville 1435EST 0 0 500.00K 0.00K Thunderstorm Wind (56EG)

Emergency management reported large trees down from near the intersection of Highways 43 and 22 to the Jefferson County Airport and east across the city of Steubenville. 3 hangars at the airport were significantly damaged with loss of roofs and structural damage. Trees and power lines were down across much the the Steubenville area.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

250 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OHIO, East Coshocton County 1 N Warsaw 16 1455EST 0 0 50.00K 0.00K Thunderstorm Wind (50EG)

Law enforcement reported large trees down near Warsaw. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Tuscarawas County 1 NW Dover 16 1501EST 0 0 50.00K 0.00K Thunderstorm Wind (50EG)

Law enforcement reported large trees down in Dover. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Harrison County New Athens 16 1530EST 0 0 75.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported large trees down across Route 9 in New Athens.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Tuscarawas County 1 N Gnadenhutten 16 1534EST 0 0 75.00K 0.00K Thunderstorm Wind (50EG)

Law enforcement reported large trees down in Gnadenhutten. Severe thunderstorms were scattered across eastern Ohio, the northern West Virginia panhandle, and southwest Pennsylvania ahead of a cold front. Significant damaging winds associated with a large bow echo occured along a path from near Steubenville, Ohio to Latrobe, Pennsylvania. From this bow echo the highest recorded wind gusts at ASOS observation sites were 71 MPH at Wheeling, WV, 66 MPH at Allegheny County Airport in West Mifflin, PA, and 86 MPH at Latrobe, PA. At least 150,000 homes lost power at some point during the storms. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Muskingum County 1 E Zanesville 25 1218EST 0 0 0.00K Hail (0.75)

Muskingum County 1 E Zanesville 25 1227EST 0 0 0.00K Hail (1.00)

Muskingum County 1 E Zanesville 25 1239EST 0 0 0.00K Hail (1.25)

Guernsey County Kimbolton 25 1308EST 0 0 25.00K 0.00K Thunderstorm Wind (50EG)

Law enforcement reported trees down near Kimbolton. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Tuscarawas County 1 N Midvale 25 1318EST 0 0 25.00K 0.00K Thunderstorm Wind (50EG)

Law enforcement reported trees down in Midvale. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Guernsey County 1 E Cambridge 25 1343EST 0 0 0.00K Hail (0.88)

Scattered severe thunderstorms developed across eastern Ohio and Western Pennsylvania ahead of low pressure moving east acoss the Ohio Valley.

OHIO, North Hancock County Mc Comb 07 2015EST 2018EST 0 0 35.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorms winds downed several trees in McComb. A propane tank was blown over at a residence. Garage doors on a couple homes in the town were also blown in. Peak wind gusts were estimated to be almost 60 mph.

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

251 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OHIO, North Sandusky County Fremont 07 2045EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds downed one tree and several large tree limbs.

Low pressure moved northeast across northern Indiana during the evening hours of April 7th. A warm front stretching east from the low swept north across northern Ohio. Scattered showers and thunderstorms developed along this front. A couple of the stronger thunderstorms became severe. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

Knox County 20 SSW Loudonville 25 1120EST 0 0 0.00K 0.00K Hail (0.75)

Penny sized hail was observed. Hancock County Findlay 25 1140EST 1149EST 0 0 0.00K 0.00K Hail (0.75)

Penny sized hail was observed. Crawford County Tiro 25 1141EST 0 0 0.00K 0.00K Hail (0.75)

Penny sized hail was observed. Crawford County 1 NNE Bucyrus 25 1142EST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail was observed. Knox County 2 S Danville 25 1145EST 0 0 0.00K 0.00K Hail (1.00)

Nickel to quarter sized hail was observed. Richland County Mansfield 25 1155EST 0 0 0.00K 0.00K Hail (0.88)

Nickel sized hail was reported. Hancock County Findlay 25 1159EST 0 0 0.00K 0.00K Hail (0.75)

Penny sized hail was observed. Erie County 1 W Huron 25 1215EST 0 0 0.00K 0.00K Hail (0.75)

Penny sized hail was observed. Erie County Huron 25 1225EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds downed a tree and some large limbs. A warm front lifted north across northern Ohio during the early afternoon hours of April 25th. Scattered showers and thunderstorms developed along this front. A few of the stronger thunderstorms became severe. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. OHIO, Northwest Paulding County 3 NW Knoxdale 07 1906EST 1907EST 0 0 10.00K 0.00K Thunderstorm Wind (56EG)

Emergency management officials reported west facing barn doors were blown into the barn with north facing doors blown out. Damage was estimated at $10,000. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

252 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OHIO, Northwest Paulding County 1 N Cecil 07 1914EST 1916EST 0 0 100.00K 0.00K Thunderstorm Wind (60EG)

Emergency management officials reported that damage was observed along a roughly half mile long path. The damage started near the intersection of county highway C-105 and U.S. 24. Two mobile homes that were attached together, were flipped over, destroying it. As the wind continued east a pole barn next to the mobile home was destroyed. Along U.S. 24, several trees were uprooted in two separate residences. Two homes suffered roof damage as well. The damage ended just across the Maumee River where several large broken tree limbs were found along the river bank. The combined damage is estimated at $100,000.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Defiance County 3 S Ashwood 07 1920EST 2 E Ayersville 1924EST 0 0 20.00K 0.00K Thunderstorm Wind (60EG)

Law enforcement officials reported trees and power lines down across mainly the southern parts of the county. Damage is estimated at $20,000. A cold front moved slowly through the area during the early evening hours. While overall instability was modest, strong wind fields were in place. An area of storms developed in far eastern Indiana and tracked northeast into Paulding county. This area produced sporadic damage across the county before weakening. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Henry County 1 WSW Napoleon 25 1315EST 1316EST 0 0 10.00K 0.00K Thunderstorm Wind (56EG)

A local television station reported several trees were uprooted in the Glenwood Cemetery. Some of the grave markers were moved. Low pressure was moving from Illinois into Indiana during the afternoon and evening hours. An unstable atmosphere was in place ahead of the low, allowing for showers and thunderstorms to develop, mainly across northwestern Ohio. One storm moved through Henry county, producing some damage in the Napoleon area. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. OHIO, Southeast Jackson County 6 ENE Oak Hill 05 2235EST 0 0 0.00K 0.00K Hail (1.50)

Gallia County Bidwell 05 2245EST 0 0 0.00K 0.00K Hail (1.75)

Gallia County Rio Grande 05 2245EST 0 0 0.00K 0.00K Hail (1.75)

Gallia County Rio Grande 05 2245EST 0 0 0.00K 0.00K Hail (1.25)

Gallia County Addison 05 2300EST 0 0 1.00K 0.00K Hail (1.00)

Windows were broken in businesses. Gallia County Gallipolis 05 2300EST 0 0 1.00K 0.00K Hail (1.00)

Gallia County Gallipolis 05 2300EST 0 0 1.00K 0.00K Hail (1.25)

Gallia County Gallipolis 05 2302EST 0 0 1.00K 0.00K Hail (1.00)

After temperatures reached into the upper 70s and lower 80s, along with dew points near 60, showers and thunderstorms formed by late afternoon along a warm front. Some mid level disturbances and a westerly elevated inflow, helped the convection survive well into the night.

253 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OHIO, Southwest Hamilton County 3 ESE Cincinnati 05 1847EST 1852EST 0 0 Hail (0.75)

Clinton County New Vienna 05 1851EST 1855EST 0 0 Hail (1.25)

Preble County Eaton 05 1853EST 1857EST 0 0 15.00K 0.00K Thunderstorm Wind (60EG)

A gas station canopy was blown over due to thunderstorm winds.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Clinton County 2 NW New Vienna 05 1855EST 1900EST 0 0 Hail (0.75)

Highland County Leesburg 05 1907EST 1912EST 0 0 Hail (1.00)

Preble County Eaton 05 1907EST 1912EST 0 0 Hail (0.88)

Montgomery County 1 N Miamisburg 05 1911EST 1916EST 0 0 Hail (0.75)

Montgomery County Dayton 05 1920EST 1925EST 0 0 Hail (0.75)

Montgomery County Dayton 05 1920EST 1925EST 0 0 Hail (1.00)

Fayette County Washington Court Hou 05 1922EST 1926EST 0 0 Hail (1.00)

Fayette County Bloomingburg 05 1925EST 1930EST 0 0 Hail (0.75)

Montgomery County (DAY)Cox Dayton Intl 05 1928EST 0 0 Thunderstorm Wind (51MG) Note: The measured wind gust of 51 knots is equivalent to 59 mph.

Fayette County Bloomingburg 05 1929EST 1934EST 0 0 Hail (1.00)

254 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OHIO, Southwest Clark County North Hampton 05 1950EST 0 0 Thunderstorm Wind (55MG) Note: The measured wind gust of 55 knots is equivalent to 63 mph.

Madison County 10 ESE London 05 1955EST 2000EST 0 0 Hail (1.00)

Franklin County Darbydale 05 2000EST 2005EST 0 0 Hail (1.25)

Franklin County 2 NW Grove City 05 2007EST 3 NW Urbancrest 2018EST 0 0 Hail (1.75)

One inch hail also fell in this location. Franklin County Grove City 05 2007EST 2016EST 0 0 Hail (1.75)

Franklin County Columbus 05 2018EST 2030EST 0 0 Hail (1.75)

One inch hail also fell in this location. Butler County Trenton 05 2041EST 2046EST 0 0 Hail (2.00)

Butler County Trenton 05 2045EST 2100EST 0 0 Hail (0.88)

Butler County Middletown 05 2048EST 2053EST 0 0 Hail (1.00)

Clinton County New Vienna 05 2052EST 2057EST 0 0 Hail (1.75)

One in hail also occurred at this location. Warren County 2 S Springboro 05 2107EST 2112EST 0 0 Hail (0.75)

Warren County 5 N Lebanon 05 2111EST 2116EST 0 0 Hail (1.00)

Licking County Newark 05 2112EST 2117EST 0 0 Hail (1.00)

255 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OHIO, Southwest Franklin County Gahanna 05 2121EST 2126EST 0 0 Hail (0.75)

Clinton County 3 NW Wilmington 05 2130EST 2135EST 0 0 Hail (0.75)

Clinton County 4 N Wilmington 05 2130EST 2135EST 0 0 Hail (1.00)

Pike County 5 W Waverly 05 2143EST 2148EST 0 0 Hail (1.25)

Pike County 5 SW Waverly 05 2145EST 2153EST 0 0 Hail (0.88)

Pike County Piketon 05 2156EST Waverly 2201EST 0 0 Hail (1.00)

Ross County 3 ENE Frankfort 05 2229EST 2234EST 0 0 Hail (0.75)

Supercells developed along a warm front initially affecting northern Kentucky during the late afternoon hours. Activity increased and developed into multicell clusters as it lifted northeast across the area.

Darke County Greenville 07 2200EST 2300EST 0 0 20.00K 0.00K Lightning

There were several reports of damage and structural fires due to lightning across the county.

A series of lightning strikes caused multiple fires around the area.

Fairfield County 4 S Lancaster 16 1710EST 1715EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

A few trees were reported down in Hocking and Berne Townships due to damaging thunderstorm winds.

Isolated severe weather occurred during the early evening hours of April 16th. The main threat from these storms was damaging winds. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Fairfield County Pickerington 25 1204EST 1209EST 0 0 Hail (1.00)

Fairfield County Baltimore 25 1217EST 1222EST 0 0 Hail (0.88)

Severe storms developed during the early afternoon hours of April 25th across Ohio.

256 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Eastern Creek County 2 SSE Depew 02 0645CST 0 0 0.00K 0.00K Thunderstorm Wind (70EG)

Strong thunderstorm wind damaged the roofs of homes, severely damaged several barns and uprooted several trees at West 271st Street South and South 449th West Avenue. Maximum wind gusts based on this damage were estimated to be about 80 mph. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Osage County 2 NE Hominy 02 0650CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Strong thunderstorm wind broke a utility pole and blew shingles off a home.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Pawnee County 3 N Jennings 02 0652CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Strong thunderstorm wind destroyed a barn, damaged several trees, and blew the skirting off a mobile home.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Creek County 7 WSW Kellyville 02 0700CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Strong thunderstorm wind blew down several fences and damaged a barn on Highway 66. This report was relayed by KOTV.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Washington County 1 N Dewey 02 0705CST 0 0 5.00K 0.00K Thunderstorm Wind (52EG)

Strong thunderstorm wind damaged a barn and other outbuildings north of Dewey.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Tulsa County 1 NW Tulsa 02 0710CST 0 0 15.00K 0.00K Thunderstorm Wind (52EG)

Strong thunderstorm wind blew off the roof of a car wash and damaged homes in the area.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Tulsa County 4 ENE Jenks 02 0855CST 0 0 0.00K 0.00K Hail (0.75)

Tulsa County 6 ESE Tulsa 02 0857CST 0 0 0.00K 0.00K Hail (0.75)

Tulsa County 5 SE Tulsa 02 0858CST 0 0 0.00K 0.00K Hail (0.75)

Tulsa County 7 SSE Tulsa 02 0900CST 0 0 0.00K 0.00K Hail (0.75)

Rogers County 4 W Catoosa 02 0903CST 0 0 0.00K 0.00K Hail (0.75)

Tulsa County 8 E Tulsa 02 0906CST 0 0 0.00K 0.00K Hail (0.88)

Scattered thunderstorms developed across portions of northeast Oklahoma early on the morning of April 2, 2010, resulting in significant wind damage and hail.

257 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Eastern Washington County Dewey 04 2317CST 0 0 0.00K 0.00K Hail (0.88)

Washington County Dewey 04 2317CST 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. Washington County Dewey 04 2318CST 0 0 0.00K 0.00K Hail (1.00)

A storm chaser with KJRH reported quarter size hail. Osage County Pawhuska 05 0003CST 0 0 0.00K 0.00K Hail (1.00)

Isolated thunderstorms affected portions of Northeast Oklahoma with a few storms producing damaging winds and large hail.

Pawnee County 4 N Pawnee 06 2110CST 0 0 0.00K 0.00K Hail (1.00)

Osage County 5 N Hominy 06 2150CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts to 60 miles per hour were reported. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Pawnee County 1 SSW Cleveland 06 2201CST 0 0 0.00K 0.00K Hail (0.75)

Washington County Ochelata 06 2225CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Emergency Management estimated 60 mile per hour thunderstorm wind gusts.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Creek County 9 SSE Mannford 06 2229CST 0 0 0.00K 0.00K Hail (0.75)

Tulsa County 5 NW Collinsville 06 2245CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Thunderstorm wind gusts to 65 miles per hour were estimated by the broadcast media.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Tulsa County Tulsa 06 2255CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm wind gusts to 60 mph were estimated by the broadcast media.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Tulsa County 4 SSE Tulsa 06 2305CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Strong thunderstorm wind gusts damaged trees. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Rogers County 2 S Claremore 06 2312CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG)

An amateur radio operator measured 61 mile per hour thunderstorm wind gusts.

Note: The measured wind gust of 53 knots is equivalent to 61 mph.

258 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Eastern Tulsa County Broken Arrow 06 2315CST 0 0 0.00K 0.00K Hail (0.75)

Ottawa County Commerce 06 2353CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Strong thunderstorm winds blew down trees. Isolated thunderstorms affected portions of Northeast Oklahoma, some of which produced damaging winds and large hail. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Sequoyah County 4 WNW Short 30 1406CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

Strong thunderstorm wind blew down trees and damaged barns near Nicut.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Haskell County 1 NNE Stigler 30 1420CST 0 0 10.00K 0.00K Hail (1.75)

Sequoyah County 1 SSE Gans 30 1508CST 0 0 0.00K 0.00K Hail (0.88)

Sequoyah County 1 N Muldrow 30 1515CST 0 0 0.00K 0.00K Hail (1.00)

Sequoyah County Roland 30 1516CST 0 0 0.00K 0.00K Hail (0.75)

Thunderstorms occurred across Eastern Oklahoma on the afternoon of April 30, 2010, some producing large hail and damaging winds.

OKLAHOMA, Extreme Southeast Mccurtain County 2 SSE Kullituklo 30 1830CST 0 0 0.00K 0.00K Hail (0.88)

A very unstable airmass developed across much of the Southern Plains and Lower Mississippi Valley during the afternoon and evening hours of April 30th. A strong upper level trough moved into the Southern Plains during the afternoon and sparked strong to severe thunderstorms across much of southeast Oklahoma into northeast Texas and southwest Arkansas. Strong deep layer shear and low level directional shear was present during the evening and this resulted in storms developing supercellular characteristics. Large hail and isolated tornadoes developed with this activity across the region.

OKLAHOMA, Panhandle

OKZ001 Cimarron 01 1315CST 0 0 0.00K 0.00K High Wind Strong gradient non-thunderstorm winds occurred during the afternoon hours across the western Oklahoma Panhandle. No damage or injuries were reported. At 1315 CST...fifty-two knot non-thunderstorm wind gusts were reported at the Boise City Oklahoma Mesonet station located three miles south southeast of Boise City. At 1555 CST...fifty knot non-thunderstorm wind gusts were reported at the Boise City Oklahoma Mesonet station located three miles south southeast of Boise City. At 1600 CST...fifty-one knot non-thunderstorm wind gusts were reported at the Boise City Oklahoma Mesonet station located three miles south southeast of Boise City. At 1615 CST...fifty-one knot non-thunderstorm wind gusts were reported at the Boise City Oklahoma Mesonet station located three miles south southeast of Boise City.

259 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Panhandle OKZ003 Beaver 05 1730CST 2030CST 0 0 20.0K 0.00K Wildfire

A grass fire began around one mile north of Clear Lake in Beaver County about 1730 CST. The grass fire consumed an estimated three hundred and sixty acres and was reported to be one quarter to one half mile wide and one and a half miles long. The grass fire was caused by a vehicle which was destroyed. No injuries were reported. The grass fire was brought under control around 2030 CST and a total of nine fire departments responded to the grass fire.

Texas County 1 N Guymon 22 1348CST 0 0 0.00K 0.00K Hail (0.75)

Texas County 1 N Guymon 22 1413CST 0 0 0.00K 0.00K Hail (0.88)

Texas County 4 SW Hooker 22 1431CST 0 0 0.00K 0.00K Hail (0.88)

Texas County 16 SE Hitchland 22 1510CST 0 0 0.00K 0.00K Hail (1.00)

The trained spotter reported the hail at the Palo Duro Reservoir.

Texas County 16 SE Hitchland 22 1519CST 0 0 0.00K 0.00K Hail (1.00)

The trained spotter reported the hail at the Palo Duro Reservoir.

Beaver County 3 S Gray 22 1651CST 1652CST 0.23 25 0 0 0.00K 0.00K Tornado (EF0)

The tornado touched down about eight miles south of Bryans Corner in Beaver County at 1651 CST and lifted at 1652 CST. The tornado remained over open country and was on the ground with a path length of approximately one quarter of a mile and a path width of about twenty-five yards. No damage or injuries were reported.

Beaver County 7 S Beaver 22 1811CST 1812CST 0 0 0.00K 0.00K Hail (1.00)

Beaver County 8 SSE Elmwood 22 1908CST 1910CST 0 0 0.00K 0.00K Hail (0.88)

Severe thunderstorms producing large hail along with an isolated tornado moved across the central and eastern Oklahoma Panhandle during the afternoon and evening hours. No damage or injuries were reported.

OKLAHOMA, Western Central and Southeast Cotton County Hulen 02 0440CST 0442CST 0 0 0.00K Thunderstorm Wind (56EG)

Eight power poles were blown down on top of Highway 65 near Baseline Road. The garage door at the fire department was blown in. Several south to southwest facing windows were blown out. Monetary damages were not available.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

260 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Cotton County 1 NW Walters 02 0440CST 0 0 0.00K 0.00K Thunderstorm Wind (58MG) Note: The measured wind gust of 58 knots is equivalent to 67 mph.

Comanche County 3 E Pumpkin Center 02 0450CST 0 0 0.00K 0.00K Hail (1.75)

Golf-ball size hail was reported near the Bethel area. Grady County 4 WNW Chickasha Arpt 02 0452CST 0457CST 0 0 0.00K 0.00K Hail (1.00)

Hail up to quarter size lasted about 5 minutes. Grady County Rush Springs 02 0502CST 0512CST 0 0 400.00K 0.00K Thunderstorm Wind (78EG)

Widespread damage occurred in and around the Rush Springs area during the pre-dawn hours. Two areas of rotation occurred along the gust front, one moving through northern Rush Springs, and another moving across the south. The heaviest damage, with wind gusts estimated at 90-100 mph, occurred over the south side of town. In total, four unanchored mobile homes were destroyed. The former diner (Blue's Diner) located on Highway 81b was mostly destroyed, and the walk-in freezer was thrown approximately 40 yards. Several other structures were heavily damaged or destroyed and several large trees were uprooted. Seven distribution poles and nine transmission poles were downed. Numerous other power lines were also downed across Highway 81. The power lines and debris caused the closure of Highway 81 for several hours. Much of the town was without power for several hours. In addition to the structures, several automobiles were heavily damaged from the flying debris. Monetary damages were estimated.

Note: The estimated wind gust of 78 knots is equivalent to 90 mph. Grady County Rush Springs 02 0505CST 0 0 0.00K 0.00K Hail (1.75)

Canadian County 2 NW Piedmont 02 0508CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Quarter-size hail was also reported with the wind gust. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mcclain County 1 ESE Blanchard 02 0520CST 3 NNW Goldsby 0535CST 0 0 0.00K Thunderstorm Wind (61EG)

Two small scale circulations, call misocyclones, moved east during the early morning, with damage reported along their paths. The first circulation caused trees and tin outbuilding damage beginning near Blanchard and continuing northeast. The more significant damage occurred a half mile south of Highway 9 on Western Avenue. Here, a large barn was destroyed and a concrete wall of another barn was blown in. Some other minor tree damage was reported just east of this location. Monetary damages were not available. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

261 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast

A concrete wall of a barn was blown in, a half mile south of Highway 9 on Western Avenue. Photo courtesy of Doug Speheger. Mcclain County 2 SW Newcastle 02 0525CST 0530CST 0 0 0.00K Thunderstorm Wind (65EG)

A 2nd misocyclone moved through parts of McClain and Cleveland counties. Damage was first noted in Newcastle along 16th Street where minor damage was reported to law furniture. Damage was reported to trees and tin outbuildings, as well minor damage to lawn furniture and trampolines, as the circulation moved east-southeast. Four large and five typical-size power poles were knocked down near the Community Christian School, and a semi-trailer blown over near I-35 and Highway 77. More damage to trees, flag poles, and fencing continued until just south of Lindsay Street east of Interstate 35. A large billboard sustained damage at this location. Monetary damages were not available.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Oklahoma County 6 W Edmond 02 0526CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

No damage was reported with the wind gust. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cleveland County 3 N (OUN)Norman Westheimer Arpt 02 0530CST 0540CST 0 0 0.00K Thunderstorm Wind (65EG)

This was a continuation of the 2nd misocyclone that developed over McClain county and continued into Cleveland county. Damage was first noted in Newcastle along 16th Street where minor damage was reported to law furniture. Damage was reported to trees and tin outbuildings, as well minor damage to lawn furniture and trampolines, as the circulation moved east- southeast. Four large and five typical-size power poles were knocked down near the Community Christian School, and a semi- trailer blown over near I-35 and Highway 77. More damage to trees, flag poles, and fencing continued, and came to an end near Indian Hills Road and Bryant Avenue. Monetary damages were not available.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Oklahoma County 1 ESE Oklahoma City 02 0533CST 0 0 4.00K 0.00K Thunderstorm Wind (56EG)

A large highway sign was blown down over I-235, just north of the I-40 junction. Monetary damages were estimated.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

262 Time Path Path Number of Estimated April 2010 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 SW Norman 02 0535CST 0 0 6.00K 0.00K Thunderstorm Wind (52EG)

A large billboard was damaged south of Lindsay Street and just east of Interstate 35. Two business' near this location also had broken windows. Monetary damages were estimated. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Noble County Perry 02 0535CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Pea-size hail that covered the ground was also reported with the wind gust.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cleveland County 2 SSE Norman 02 0540CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

No damage was reported with the wind gust. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Cleveland County 3 S Norman 02 0540CST 0 0 0.00K Thunderstorm Wind (52MG) The wind gust was measured at the National Weather Center. Numerous tree limbs were blown down onto cars, breaking one window at Burton Hall on the University of Oklahoma Campus. A few signs also were damaged across the campus. Monetary damage estimates were not available. Note: The measured wind gust of 52 knots is equivalent to 60 mph. Oklahoma County 6 W Edmond 02 0541CST 0 0 0.00K 0.00K Hail (0.75)

Cleveland County 4 WNW Norman 02 0542CST 0 0 0.00K 0.00K Hail (1.00)

A wind gust of 60 mph accompanied the hail. Cleveland County Norman 02 0543CST 0 0 0.00K 0.00K Hail (1.00)

Cleveland County 2 E (OUN)Norman Westheimer 02Arpt 0545CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

No damage was reported with the wind gust. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Oklahoma County (TIK)Tinker Afb 02 0547CST 0 0 0.00K 0.00K Thunderstorm Wind (55MG) Note: The measured wind gust of 55 knots is equivalent to 63 mph.

Oklahoma County 3 N Harrah 02 0605CST 0606CST 0 0 0.00K Thunderstorm Wind (56EG)

Two large tin barns were heavily damaged. A couple of trees were uprooted and minor shingle damage was reported to a couple of houses. Monetary damages were not available. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Lincoln County 3 NNE Sparks 02 0625CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG) Note: The measured wind gust of 50 knots is equivalent to 58 mph.

Lincoln County 5 SW Parkland 02 0626CST 0628CST 0 0 0.00K Thunderstorm Wind (56EG)

Several small storage sheds were destroyed. Debris from the sheds was blown approximately 100 yards away. A few power poles/lines were blown down, with one causing a small grass fire. Monetary damages were not available.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. 263 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Payne County 1 SE Cushing 02 0635CST 0 0 0.00K Thunderstorm Wind (56EG)

Minor roof damage to a home and carport were reported. Monetary damages were not available.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Pontotoc County Lula 02 0843CST 0 0 0.00K 0.00K Hail (0.75)

A pacific cold front/dry line moved east through Oklahoma during the late morning hours of the 1st into the morning of the 2nd. Showers and thunderstorms developed along the front, with the aide of an upper level storm system that slowly moved east toward the southern plains. The thunderstorms increased in intensity as they moved/developed east, as better instability was in place. Strong wind shear was also in place, as the nocturnal low-level jet developed. Although hail up to golf-ball size was reported with a few of the thunderstorms as they moved east and northeast, the severe winds were the main threats with storms. Some of the storms caused extensive damage, especially in the Rush Springs area, as they moved northeast from southern into central Oklahoma. Most severe wind gusts were between 60 and 70 mph, but in and around the Rush Springs area, gusts were more likely between 90 and 100 mph. Additional damage occurred further northeast into central Oklahoma. Damage was reported in and around Newcastle, Blanchard, Norman, and Oklahoma City. And most of this occurred as the morning rush was developing. At least 3,000 people were without power across central Oklahoma. The storms continued into eastern Oklahoma by late morning.

Major County Ames 04 1917CST 0 0 0.00K 0.00K Hail (0.88)

Major County 1 SE Ames 04 1923CST 0 0 0.00K 0.00K Hail (1.75)

The hail fell at the Korner Store in Ames. Garfield County Waukomis 04 1950CST 0 0 0.00K 0.00K Hail (1.00)

Garfield County Waukomis 04 1950CST 1952CST 0 0 0.00K Thunderstorm Wind (61EG)

Several street signs and tree limbs were blown down. Part of a tin barn was blown down. A stock tank was blown onto a train. Hail up to quarter-size was also reported. Monetary damage estimates were not available.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Blaine County 2 N Canton Lake Dam 04 2025CST 0 0 0.00K 0.00K Hail (1.00)

Quarter-size hail, with an estimated 50 mph winds were reported at the Overlook Cafe.

Kingfisher County 4 N Loyal 04 2105CST 0 0 0.00K 0.00K Hail (1.65)

Noble County 7 SSE Red Rock 04 2110CST 0 0 0.00K 0.00K Thunderstorm Wind (54MG) Note: The measured wind gust of 54 knots is equivalent to 62 mph.

Garfield County Enid 04 2136CST 0 0 0.00K 0.00K Hail (0.88)

Garfield County 3 N Covington 04 2155CST 0 0 5.00K 0.00K Thunderstorm Wind (56EG)

A couple of power lines and one pole was blown down near Highway 74. Monetary damages were estimated.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

264 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Grant County 1 SW Medford 05 0105CST 0 0 0.00K 0.00K Thunderstorm Wind (64MG)

Thunderstorms developed along a slowly moving warm front during the early evening hours. A moderately strong low-level jet developed, which helped provide additional lift and instability for the thunderstorms to maintain themselves through the evening. The thunderstorms took on supercell characteristics, dropping large hail and produced damaging winds around 70 mph. Some damage was reported in Garfield county as a result of the strong winds. Note: The measured wind gust of 64 knots is equivalent to 74 mph. Logan County 3 NE Crescent 06 2035CST 0 0 0.00K 0.00K Hail (1.75)

Canadian County Piedmont 06 2040CST 0 0 0.00K 0.00K Hail (0.88)

Noble County 6 SE Red Rock 06 2042CST 0 0 0.00K 0.00K Hail (1.00)

Logan County 3 NW Guthrie 06 2045CST 0 0 0.00K 0.00K Hail (1.75)

Logan County 3 SW Mulhall 06 2045CST 0 0 0.00K 0.00K Hail (1.00)

Logan County 1 S Guthrie 06 2059CST 0 0 2.00K 0.00K Hail (1.75)

The hail cracked the windshield of a fire truck. Monetary damages were estimated.

Payne County Lake Carl Blackwell Dam 06 2108CST 0 0 0.00K 0.00K Hail (0.88)

Logan County 4 SE Guthrie 06 2109CST 0 0 0.00K 0.00K Hail (1.00)

Mcclain County 3 N Goldsby 06 2120CST 0 0 0.00K 0.00K Hail (0.88)

Mcclain County Blanchard 06 2122CST 0 0 0.00K 0.00K Hail (1.25)

Logan County Meridian 06 2125CST 0 0 0.00K 0.00K Hail (1.00)

Cleveland County 3 W Norman 06 2133CST 0 0 0.00K 0.00K Hail (0.75)

Cleveland County 1 N Norman 06 2138CST 0 0 0.00K 0.00K Hail (1.00)

Stephens County 3 S Corum 06 2153CST 0 0 0.00K 0.00K Hail (1.50)

The report was relayed by KSWO-7 in Lawton. Cleveland County 4 NNE Noble 06 2158CST 0 0 0.00K 0.00K Hail (0.75)

Wind gusts to 50 mph were also reported at this location.

265 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Stephens County Velma 06 2222CST 0 0 0.00K 0.00K Hail (1.75)

Jefferson County Waurika 06 2235CST 0 0 0.00K 0.00K Hail (0.88)

Pottawatomie County Tecumseh 06 2240CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Brief power outages were reported throughout town. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Seminole County 3 NW Seminole 06 2255CST 0 0 0.00K 0.00K Hail (1.00)

A wind gust of 50 mph accompanied the hail. Stephens County 1 NW Sunray 06 2310CST 0 0 0.00K 0.00K Hail (1.25)

Two boundaries moved into/toward Oklahoma during the day on the 6th. A dry line moved slowly east into parts of central Oklahoma, and a cold front moved south out of Kansas. A strong cap was in place for much of the day, and any attempt for thunderstorm development failed into later in the evening. The cold front began to overtake the dry line from north to south after dark. This combined with a weakening cap allowed for thunderstorms to develop from parts of north central Oklahoma into southern Oklahoma. The thunderstorms became severe with marginally severe hail and heavy rain reported. The hail size occasionally grew as large as golf-ball size, but hail sizes averaged quarter to half-dollar size. The storms moved into southeast Oklahoma shortly after midnight, but the severe thunderstorm threat had ended.

Roger Mills County Cheyenne 22 2002CST 0 0 0.00K 0.00K Hail (1.00)

Roger Mills County Hammon 22 2040CST 0 0 0.00K 0.00K Hail (1.00)

An estimated wind gust of 60 mph was also reported. Roger Mills County Hammon 22 2040CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Quarter-size hail was also reported at this location. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Roger Mills County 6 SW Cheyenne 22 2315CST 0 0 0.00K 0.00K Thunderstorm Wind (52MG) Note: The measured wind gust of 52 knots is equivalent to 60 mph.

Jackson County (LTS)Altus Afb 23 0014CST 0 0 0.00K 0.00K Thunderstorm Wind (60MG) Note: The measured wind gust of 60 knots is equivalent to 69 mph.

Kiowa County Snyder 23 0038CST 0040CST 0 0 0.00K Thunderstorm Wind (56EG)

The southwest portion of Snyder sustained minor damage to trees, fencing, a small shed, and carports. Monetary damage estimates were not available. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Caddo County 2 E Carnegie 23 0120CST 0 0 7.00K 0.00K Thunderstorm Wind (56EG)

Roof damage was reported to a barn. Monetary damages were estimated.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

266 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OKLAHOMA, Western Central and Southeast Major County 4 E Meno 23 0140CST 0 0 0.00K 0.00K Thunderstorm Wind (53MG) Note: The measured wind gust of 53 knots is equivalent to 61 mph.

Garfield County (END)Vance Afb Enid 23 0150CST 0155CST 0 0 0.00K 0.00K Thunderstorm Wind (70MG)

A wind gust of 63 mph was also reported, in addition to the 81 mph wind gust.

Note: The measured wind gust of 70 knots is equivalent to 81 mph. Garfield County Enid 23 0155CST 0205CST 0 0 0.00K Thunderstorm Wind (76MG)

The peak wind gust was measured on top of the Knox building in downtown Enid. Large trees were toppled, with several limbs knocking down power lines. At least 3,500 residents were without power as a result. Other damage included fences knocked down, minor to moderate roof damage, and minor house siding damage. Monetary damage estimates were not available.

A large storm system moved from Nevada into the Texas panhandle during the day on the 22nd. A surface dry line took shape over the Texas panhandle, with numerous severe thunderstorms developing ahead the boundary. The thunderstorms remained more discrete west of the Oklahoma/Texas panhandle border, before congealing into a more linear complex by mid evening. The larger complex of thunderstorms moved into western Oklahoma, with some moderately severe hail and strong winds affecting several locations. Coverage of the thunderstorms lessened as the storms moved east, but the developing low-level jet kept the chance for strong winds well into the overnight hours. The line of thunderstorms took on renewed strength over northern Oklahoma, and strong winds were reported from Major into Garfield counties. Wind gusts reached as high as 80 mph over parts of Enid, resulting in some fairly widespread damage. Note: The measured wind gust of 76 knots is equivalent to 87 mph. OKZ009-015-022 Custer - Dewey - Ellis - Washita 23 1509CST 1700CST 0 0 0.00K 0.00K High Wind

A storm system located over the central Plains slowly moved off to the east northeast from the 23rd into the 24th. Strong winds aloft were able to mix down to the surface due to afternoon heating. Winds routinely gusted over 40 mph across northwest Oklahoma. A few gusts, however, reached as high as 60 mph, although these gusts were not frequent. No damage was reported with the wind gusts. The winds gradually decreased through the evening due to the loss of daytime heating.

OREGON, Central and East

ORZ043-502 Central Oregon - Northern Blue Mountains 02 0300PST 1900PST 0 0 Heavy Snow

A strong cold front and associated upper level trough brought late season heavy snow to the Blue Mountains and central Oregon. Snowfall amounts in inches included Sunriver (5.5), 1 mile west of Three Rivers (4), High Ridge Snotel (6), and MilkShakes Snotel (6). Deschutes County Redmond 14 1741PST 0 0 Hail (0.75)

Penny sized hail covered the ground. An upper level disturbance over southwest Oregon brought moisture into central Oregon and combined with daytime heating to produce thunderstorms with hail. Umatilla County 5 ESE Vinson 17 1650PST 0 0 Hail (1.00)

Quarter sized hail reported. Umatilla County 7 SSW Barnhart 17 1653PST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail reported.

267 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OREGON, Central and East Umatilla County Pendleton 17 1730PST 0 0 Hail (0.75)

Dime size hail reported. Umatilla County 1 E Mission 17 1735PST 0 0 Hail (0.75)

Dime sized hail reported. An upper level disturbance combined with daytime heating to produce thunderstorms with large hail in Umatilla County.

ORZ502 Northern Blue Mountains 27 1500PST 28 0200PST 0 0 0.00K 0.00K Heavy Snow

Umatilla County 1 NNE Echo 27 1535PST 1555PST 0 0 0.00K 0.00K Funnel Cloud

Funnel cloud observed near Echo. A strong cold front and upper level trough brought heavy snowfall to the northern Blue Mountains. Snowfall amounts in inches included High Ridge SnoTel (9) and Tollgate (6). Also a funnel cloud was observed near Echo.

Courtesy Lars Hansen NWS Electronics Technician. Funnel cloud near Echo, Oregon.

OREGON, Northwest

ORZ011-013 Cascades in Lane County - Northern Oregon Cascades 02 0100PST 03 0400PST 0 0 0.00K 0.00K Heavy Snow

A small but moist late season storm brought heavy snowfall to the Cascades and Cascades Foothills.

ORZ001-003 Coast Range of Northwest Oregon - Northern Oregon Coast 02 0556PST 1245PST 0 0 0.00K 0.00K High Wind

A particularly late-season frontal system brought strong winds to the coast and Coast Range.

ORZ010-014 North Oregon Cascades Foothills - Upper Hood River Valley 02 0600PST 03 1400PST 0 0 0.00K 0.00K Heavy Snow

268 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OREGON, Northwest

A small but moist late season storm brought heavy snowfall to the Cascades and Cascades Foothills.

ORZ002-004 Central Coast Range of West Oregon - Central Oregon Coast 02 0645PST 1230PST 0 0 0.00K 0.00K High Wind

A particularly late-season frontal system brought strong winds to the coast and Coast Range.

ORZ001-002 Central Oregon Coast - Northern Oregon Coast 05 1248PST 1430PST 0 0 0.00K 0.00K High Wind

A small system brought winds strong enough to just reach high wind criteria along the Oregon coast.

OREGON, Southeast Harney County 5 NW Crane 20 1430PST 1500PST 0 0 200.00K Thunderstorm Wind (65EG)

Harney County Sheriff Department reported 52 broken or downed power poles along state highway 78, damaged roofs, several outbuildings partially destroyed, and a mobile home blown 3 feet off the foundation.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Malheur County Rome State Arpt 20 1535MST 1555MST 0 0 Thunderstorm Wind (54MG)

The Rome ASOS measured a wind gust of 62 MPH from the southwest.

A strong, spring season cold front moved through Central Oregon on the afternoon of the 20th creating severe thunderstorms with damaging winds in Harney and Malheur counties. Note: The measured wind gust of 54 knots is equivalent to 62 mph.

Malheur County Rome State Arpt 27 1455MST 1520MST 0 0 Thunderstorm Wind (57MG)

The ASOS at Rome recorded a wind gust of 66 MPH from the southwest.

A strong cold front ahead of a very cold upper low pushed through Eastern Oregon and Southwest Idaho on 27th bringing thunderstorms with strong, gusty winds and large hail. Note: The measured wind gust of 57 knots is equivalent to 66 mph.

OREGON, Southwest

ORZ027 South Central Oregon Cascades 02 0400PST 03 0800PST 0 0 0.00K 0.00K Heavy Snow

Significant subtropical moisture ahead of a strong cold front and strong cold air behind the front brought just the right synoptic conditions for heavy snow fall.

ORZ021-031 Central & Eastern Lake - Coastal Curry - South Central Oregon Coast

02 0554PST 0910PST 0 0 0.00K 0.00K High Wind

Strong south to southwest winds occurred ahead of a strong cold front. Severe winds were experienced along the south Oregon coast. 02 2100PST 03 0900PST 0 0 0.00K 0.00K High Surf

269 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

OREGON, Southwest ORZ022 Coastal Curry 03 0300PST 0500PST 0 0 0.00K 0.00K High Surf

Significant long period west-northwesterly swell entered the marine zones which created high surf (large breaker waves) along the coast.

ORZ024 Eastern Curry & Josephine 04 0400PST 0 0 0.00K 0.00K Heavy Snow 05 Very low snow levels in combination with moisture ahead of a cold front brought significant snow accumulations to the area.

ORZ021 South Central Oregon Coast 04 0800PST 0840PST 0 0 0.00K 0.00K High Wind

Strong south winds occurred ahead of a strong cold front which brought severe winds to the south Oregon coast.

ORZ023>026 Central Douglas - Eastern Curry & Josephine - Eastern Douglas Foothills - Jackson

08 2300PST 09 0700PST 0 0 0.00K 0.00K Frost/Freeze

A cold air mass settled over Oregon which brought well below minimum temperatures to the area under mostly clear skies at night. 10 0000PST 0700PST 0 0 0.00K 0.00K Frost/Freeze

ORZ024>026 Eastern Curry & Josephine - Eastern Douglas Foothills - Jackson

10 0000PST 0700PST 0 0 0.00K 0.00K Frost/Freeze

Another night of well below normal minimum temperatures as a cold air mass continued over Oregon.

ORZ030-031 Central & Eastern Lake - Northern & Eastern Klamath & Western Lake

20 2200PST 21 0800PST 0 0 0.00K 0.00K Heavy Snow

A strong cold front in combination with deep moisture ahead of the front brought significant snow accumulations to the area.

ORZ031 Central & Eastern Lake 26 1638PST 27 0038PST 0 0 0.00K 0.00K High Wind

A strong cold front moved across south central Oregon with severe winds occurring ahead of this front.

PENNSYLVANIA, Central Clearfield County 1 SE Clearfield 08 1600EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled numerous trees and wires in Clearfield Borough.

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

270 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, Central Cameron County 1 NE Emporium 08 1630EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled multiple trees and wires throughout the county. State Route 120 between Emporium and Truman was closed due to downed trees and wires.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Franklin County 1 E Chambersburg 08 1630EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph topped numerous trees and wires in the Chambersburg area.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Mifflin County 1 S Lumber City 08 1635EST 0 0 15.00K 0.00K Thunderstorm Wind (70EG)

Thunderstorm winds estimated near 80 mph uplifted a large (26x40) garage roof and carried it approximately 200 feet from the original structure. The damage occurred in the area of 169 Queen Street in Reedsville (Brown Township). Additional debris was lifted nearly 75 feet over surrounding obstructions. Several homes in the immediate area were affected by downed wires. The damage was confined to the garage roof with only minor residual damage noted. No injuries were reported.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph.

Thunderstorm winds estimated near 80 mph uplifted this large (26x40) garage roof and carried it approximately 200 feet from the original structure. The damage occurred in the area of 169 Queen Street, Reedsville (Brown Township). No injuries were reported. Juniata County 1 W Port Royal 08 1648EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled several trees along State Route 333 near Port Royal.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Adams County 1 SE Biglerville 08 1655EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled several trees a few miles east of Ardentsville.

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

271 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, Central Clinton County 1 S Lockport 08 1655EST 0 0 5.00K 0.00K Thunderstorm Wind (50MG)

Thunderstorm winds measured at 58 mph toppled several trees between the 300 and 800 blocks along Church Street in Lock Haven. Note: The measured wind gust of 50 knots is equivalent to 58 mph. Perry County 1 N Newport 08 1706EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled several trees near Newport.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Perry County 1 NNW Duncannon 08 1715EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled several trees near Duncannon.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lycoming County 1 NE Newberry 08 1725EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled numerous trees and wires in the Williamsport area.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lycoming County 2 E Ralston 08 1750EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled several trees and wires near Ralston.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lycoming County 1 E Picture Rocks 08 1800EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled several trees and wires near Picture Rocks.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Schuylkill County 1 W Big Mine Run 08 1835EST 0 0 10.00K 0.00K Thunderstorm Wind (70EG)

Thunderstorm winds estimated near 80 mph toppled a few power poles and wires near Ashland.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Lebanon County 1 E Annville 08 1836EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph damaged a weakened residential structure on West Main Street in Annville.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lebanon County 1 N Lebanon 08 1836EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled numerous trees and wires in Lebanon city.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Sullivan County 3 SSE Nordmont 08 1845EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled several trees a few miles southeast of Laporte.

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

272 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, Central Sullivan County 1 WSW Millview 08 1845EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled several trees along the 3000 block of Route 4008 near Forksville.

Severe thunderstorms produced multiple reports of wind damage during the late afternoon and evening hours across central Pennsylvania. Thunderstorm winds gusted as high as 80 mph. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Clearfield County 3 E Allport 16 1530EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled several trees in Winburne.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Clearfield County 3 NNW Osceola Mills 16 1530EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled several trees in Decatur Township.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cambria County Johnstown 16 1540EST 0 0 5.00K 0.00K Thunderstorm Wind (52MG)

Thunderstorm winds measured 60 mph. Note: The measured wind gust of 52 knots is equivalent to 60 mph. Cambria County Johnstown 16 1540EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled numerous trees in and around the city of Johnstown. Several thousand customers experienced power outages which lasted for approximately 24 to 48 hours.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Somerset County 1 W Davidsville 16 1545EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled several trees in Davidsville. The downed trees caused several power outages. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Somerset County 1 S Windber 16 1545EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled several trees in Windber. The downed trees resulted in power outages.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cambria County Johnstown 16 1548EST 0 0 0.00K 0.00K Thunderstorm Wind (54MG)

The Johnstown Airport (KJST) reported a peak wind gusts of 54 knots (62 mph).

Note: The measured wind gust of 54 knots is equivalent to 62 mph. Bedford County 2 SW Queen 16 1605EST 0 0 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph collapsed an old school house north of Osterburg near Imler.

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

273 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, Central Blair County 2 ENE Mill Run 16 1605EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled multiple trees and wires across portions of the county.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Bedford County 1 SE Loysburg 16 1610EST 0 0 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph collapsed a barn in New Enterprise.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Blair County (AOO)Blair Co Arpt A 16 1610EST 0 0 0.00K 0.00K Thunderstorm Wind (69MG)

The Altoona-Blair County Airport (KAOO) measured a peak wind gust of 69 knots (79 mph).

Note: The measured wind gust of 69 knots is equivalent to 79 mph. Bedford County 1 S Saxton 16 1615EST 0 0 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph partially collapsed a mobile home in Saxton.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Huntingdon County 1 E Huntingdon 16 1625EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled several trees and wires in Oneida and Penn Townships. Sporadic wind damage was also reported county-wide. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Mifflin County Lewistown 16 1635EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled numerous trees and wires in Lewistown.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Mifflin County 1 W Mc Veytown 16 1635EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled numerous trees and wires near McVeytown.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Franklin County 1 E Chambersburg 16 1641EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled numerous trees and wires across portions of the county.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Snyder County 1 S Beaver Spgs Arpt 16 1650EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled trees and wires near Beaver Springs.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Perry County 1 N Newport 16 1711EST 0 0 0.00K 0.00K Thunderstorm Wind (57MG)

Thunderstorm winds were measured near 65 mph. Note: The measured wind gust of 57 knots is equivalent to 66 mph.

274 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, Central Cumberland County 1 W Williams Grove 16 1720EST 0 1 0.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled a tree onto a vehicle. The incident occurred on Locust Point Road between Baish Road and Park Place in Monroe Township. The female driver of the vehicle sustained injuries.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Dauphin County 2 E Skyline View 16 1735EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph brought down ten large pine trees on the 500 block of North Mill Road. The incident occurred a few miles east-northeast of Skyline View or near Grantsville.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. York County 1 NE Lewisberry 16 1740EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled several large limbs near Lewisberry.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. York County 1 NE Lewisberry 16 1740EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds were estimated near 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Lebanon County 1 N East Hanover 16 1742EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph brought down a tree onto a vehicle. The incident occurred approximately 5 miles west of Jonestown. The driver was not injured. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lebanon County 1 N Sunset 16 1743EST 0 0 0.00K Thunderstorm Wind (56EG)

Thunderstorm winds estimated near 65 mph tore a large roof off of a kennel in North Lebanon Township.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. York County 1 SW East York 16 1755EST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds were estimated near 60 mph in East York. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. York County 1 SW East York 16 1755EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled several large trees along East Market Street and Edgewood Road in East York. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lancaster County 1 SW Rohrerstown 16 1800EST 0 0 0.00K 0.00K Thunderstorm Wind (61MG)

WGAL-TV meteorologist in Lancaster measured a peak wind gust of 70 mph.

Note: The measured wind gust of 61 knots is equivalent to 70 mph. Lancaster County 1 ENE Hamilton Park 16 1815EST 0 0 0.00K Thunderstorm Wind (50EG)

Thunderstorm winds estimated near 60 mph toppled numerous trees and wires across portions of the county.

275 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, Central

Severe thunderstorms crossed the Commonwealth during the mid afternoon and early evening hours, producing multiple reports of straight line damaging winds. The primary damage area started in Clearfield County along Interstate 80 and extended east-southeast through the south central mountains and into the lower Susquehanna Valley. Thunderstorm structures organized into bowing line segments, which tapped and accentuated anomalously strong environmental winds in the middle to lower atmosphere. Numerous measured peak wind gusts between 50 and 80 mph were reported via ASOS. One injury occurred in Cumberland County (Monroe Township) when a tree fell onto a vehicle. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Cambria County 1 N Ebensburg 25 1520EST 0 0 Hail (1.00)

Cambria County 2 ENE Vinco 25 1542EST 0 0 Hail (0.88)

Perry County 2 WNW New Germantown 25 1725EST 0 0 Hail (1.00)

Quarter-size hail reported along Route 274 approximately 1.5 miles west of New Germantown.

A retreating warm frontal zone and associated sharp temperature gradient combined with steep mid-level lapse rates to produce isolated large hail.

PENNSYLVANIA, East Delaware County Village Green 08 2051EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A severe thunderstorm tore down large tree limbs and wires in Aston Township.

A late night cold frontal passage triggered strong to locally severe thunderstorms in southeastern Pennsylvania. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Berks County Womelsdorf 16 1804EST 1 W Wyomissing Jct 1815EST 0 0 100.00K 0.00K Thunderstorm Wind (56EG)

A line of severe thunderstorms caused wind damage across southwestern Berks County in Womelsdorf, South Heidelberg and Spring Townships. The worst damage occurred in the West Wyomissing section of Spring Township where approximately 20 homes were damaged by either the wind directly (mainly shingles torn off) or downed trees. A downed tree broke through the roof of a home on Hillvale Avenue and displaced the family. The damage was concentrated in a two to three block area from Fritztown Road to Lincoln Avenue. A downed tree damaged two vehicles on Lincoln Avenue. The siding and shingles of another home were torn away. A trampoline was tossed into a vehicle. About 400 homes and businesses lost power in Berks County, most had the power restored by 10 p.m. EDT that evening.

A strong cold frontal passage overnight on the 16th helped trigger strong to locally severe thunderstorms across southeastern Pennsylvania during the evening of the 16th. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

PENNSYLVANIA, Northeast Bradford County Athens 08 1815EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Numerous trees were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Bradford County Wysox 08 1820EST 0 0 0.00K 0.00K Hail (1.00)

Luzerne County 1 N Chauncey 08 1845EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Numerous trees were blown down. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

276 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, Northeast Luzerne County 2 ESE Kyttle 08 1845EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Numerous trees were blown down. The Back Mountain area and Sweet Valley were the hardest hit.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Wayne County 1 NE Honesdale 08 1930EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Numerous trees were blown down throughout the county. Unseasonably warm temperatures were in place ahead of a strong cold front that moved through the region on the afternoon and evening of April 8. Several storms produced damaging winds and large hail. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. PENNSYLVANIA, West Washington County Mc Donald 16 1440EST 0 0 75.00K 0.00K Thunderstorm Wind (50EG)

Trained spotter reported large trees down in Mcdonald. Trees and power lines were also reported down by law enforcement across much of the county. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Allegheny County Highcliff 16 1445EST 0 1 4.00K 0.00K Thunderstorm Wind (55EG)

A woman suffered minor injuries when a large tree branch struck her car and shattered the car windshield.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Allegheny County 1 SE Castle Shannon 16 1450EST 0 0 200.00K 0.00K Thunderstorm Wind (55EG)

A trained spotter reported a utility pole snapped. Trees and power lines were alos reported down by law enforcement across much of western Allegeny county. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Allegheny County 1 NW Brentwood 16 1450EST 0 0 75.00K 0.00K Thunderstorm Wind (50EG)

Pittsburgh City public works reported 25 to 30 large trees down with power lines in the South Hills along and near Brownsville Road. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Allegheny County Allegheny Co Arpt 16 1453EST 0 0 75.00K 0.00K Thunderstorm Wind (57MG)

A 66 MPH wind gust was reported at the Allegheny County Airport in West Mifflin. Trees and power lines were reported down around West Mifflin. Note: The measured wind gust of 57 knots is equivalent to 66 mph. Allegheny County 1 ESE Monroeville Arpt 16 1455EST 0 0 25.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported trees down in Monroeville near the Pennsylvania Turnpike interchange.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Allegheny County Braddock 16 1455EST 0 0 100.00K 0.00K Thunderstorm Wind (60EG)

Newspapers and local media reported 4 buildings in Braddock sustainded major roof damge, including a commercial building with a day care cand dental clinic. Note: The estimated wind gust of 60 knots is equivalent to 69 mph.

277 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, West Allegheny County Mc Keesport 16 1455EST 0 0 35.00K 0.00K Thunderstorm Wind (50EG)

A lage pine tree fell onto the corner of a house smashing the roof and breaking a wall in Mckeesport.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Westmoreland County Irwin 16 1500EST 0 1 15.00K 0.00K Thunderstorm Wind (50EG)

A motorist was injured when a falling tree struck his vehicle in North Huntingdon Township.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Westmoreland County West Newton 16 1500EST 0 0 50.00K 0.00K Thunderstorm Wind (55EG)

Newspapers and local media reported roof damge to a church in West Newton.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Westmoreland County 1 NNW Lincoln Hgts 16 1510EST 1 S Loyalhanna 1520EST 0 0 200.00K 0.00K Thunderstorm Wind (60EG)

Trained spotters and law enforcement reported widespread trees and power lines down from west of Greensburg to around Latrobe. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Washington County 1 WSW Mc Connells Mill 16 1515EST 0 0 10.00K 0.00K Lightning

Emergency management reported a home fire due to a lightning strike in Chartier Township.

Washington County 1 NW Bentleyville 16 1515EST 0 0 75.00K 0.00K Thunderstorm Wind (55EG)

Emergency management reported utility lines down across all 4 lanes of Interstate 70 near Bentleyville.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Westmoreland County (LBE)Latrobe Arpt 16 1515EST 0 0 100.00K 0.00K Thunderstorm Wind (75MG)

AWOS at Arnold Palmer Regional airport in Latrobe reported a wind gust of 86 MPH. The wind pushed a Piper Cherokee secured by wheel chocks into a fence. Minor damge was also reported to buildings at the terminal.

Note: The measured wind gust of 75 knots is equivalent to 86 mph. Fayette County Leith 16 1717EST 0 0 50.00K 0.00K Thunderstorm Wind (55EG)

Emergency management reported large trees down in Uniontown.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Fayette County Leith 16 1725EST 0 0 25.00K 0.00K Thunderstorm Wind (55EG)

A trained spotter reported roof damage to a commercial building in Uniontown.

Severe thunderstorms were scattered across eastern Ohio, the northern West Virginia panhandle, and southwest Pennsylvania ahead of a cold front. Significant damaging winds associated with a large bow echo occured along a path from near Steubenville, Ohio to Latrobe, Pennsylvania. From this bow echo the highest recorded wind gusts at ASOS observation sites were 71 MPH at Wheeling, WV, 66 MPH at Allegheny County Airport in West Mifflin, PA, and 86 MPH at Latrobe, PA. At least 150,000 homes lost power at some point during the storms. Note: The estimated wind gust of 55 knots is equivalent to 63 mph.

278 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PENNSYLVANIA, West Allegheny County 1 SSW Bruceton 25 1430EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter reported large tree branches down in South Park Township.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Armstrong County 1 ESE Mc Grann 25 1545EST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Emergency management reported trees down in Manor Township. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Armstrong County 1 S Pine Furnace 25 1611EST 0 0 0.00K Hail (0.88)

Venango County 1 E Oil City 25 1624EST 0 0 0.00K Hail (0.75)

Clarion County 1 SW Clarion Parker Arpt 25 1632EST 0 0 0.00K Hail (1.00)

Clarion County 1 E Shippenville 25 1632EST 0 0 0.00K Hail (1.00)

Clarion County 1 E Shippenville 25 1634EST 0 0 0.00K Hail (0.88)

Clarion County Shippenville 25 1636EST 0 0 0.00K Hail (1.00)

Scattered severe thunderstorms developed across eastern Ohio and Western Pennsylvania ahead of low pressure moving east acoss the Ohio Valley.

RHODE ISLAND Kent County 1 NE Lakewood 01 0000EST 02 1100EST 0 0 0.00K 0.00K Flood

Eight to ten inches of rain fell across Kent County causing record rises on the Pawtuxet River at Cranston, cresting at nearly 21 feet, roughly 6 feet higher than the previous record set only two weeks prior. The Pawtuxet River flows into Kent County and resultant flooding occurred in Warwick, West Warwick, and Coventry. The South Branch of the Pawtuxet River also went into flood, setting a record at just over nine feet.

Numerous basements were flooded in East Greenwich, Warwick, West Warwick, and Coventry. In addition, numerous streets were closed due to flooding in Coventry, East Greenwich, and West Warwick, including portions of Jefferson Boulevard, and Routes 2 and 5, all major secondary roads in Warwick. A pond at the Royal Crest Estates apartment complex in Warwick flooded, submerging at least one car. Numerous buildings flooded in Warwick. One of Coventry's fire stations was badly damaged by floodwaters that they hope to repair within six months.

Evacuations were ordered for many residents, including those on River and Providence Streets in West Warwick and those in the area of the Villa del Rio and Greenwich Village apartments in Warwick. Each of those complexes have hundreds of units housing mainly elderly or disabled persons. Approximately 2500 homes and businesses were evacuated in Warwick. Three to four hundred houses (roughly 1000 people) were evacuated in West Warwick, with all of the Natick and some areas of the Clyde neighborhoods inundated with floodwaters. So many houses in Natick were flooded that electricity to the neighborhood was cut off for safety reasons. Many of the homes evacuated, particularly those nearest to the Pawtuxet River, were deemed uninhabitable by inspectors from FEMA. Evacuations were ordered in Coventry downstream of the Laurel Avenue Bridge over the Pawtuxet River after the bridge was severely eroded and in danger of collapsing along with the adjacent dam. A 50 foot portion of the side of the Concordia building that sits along the river near the dam collapsed. This compounded the concerns about the Laurel Avenue Bridge and adjacent dam. The bridge held through the flooding, though was seriously compromised and has been closed since the end of March while a new bridge is built or repairs can be made to the current bridge.

279 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

RHODE ISLAND

The Pawtuxet River first came out of its banks at a service plaza off Interstate 95 at Jefferson Boulevard (exit 15), flooding the parking lot with two feet of water. A 500 foot section of I-95 between Route 37 and Route 113 that normally carries between 160,000 to 180,000 cars per day was closed Tuesday evening, March 30th, after being inundated with water from the Pawtuxet. This section was closed for nearly 48 hours cutting the main route through Rhode Island in half and snarling traffic throughout the Providence metro area. This was compounded by flooding on the Airport Connector, the main road between I-95 and Rhode Island's primary airport, T.F. Green, which leads off the flooded section of I-95. Both of these roads were closed in both directions. T.F. Green airport remained open and fully operational throughout the flooding, though portable toilets were brought in due to the problems at the Warwick sewage treatment plant. Emergency workers, Department of Transportation workers, and National Guardsmen worked for several days to keep water off Interstate 295, the primary alternative to I-95.

The river flooded the Warwick Mall, submerging cars in the parking lot and sending up to four feet of water in spots and at least two feet of water into the stores on the lower level. Firefighters had to rescue a trapped security guard at the height of the flooding. This closed all 70 stores in the million square foot mall. The first store in the Warwick Mall to reopen, Sports Authority, did so nearly seven weeks after the flood. It was on the second floor and did not flood but was concerned about air quality in the mall. Other anchor stores in the mall plan to reopen in July (Target), October (JC Penny), and December (Macy's). A CVS at the corner of Providence and Wakefield Streets in West Warwick was damaged by the flooding resulting in that store temporarily closing. Up to 150 businesses in Warwick were also closed by the flooding, including the Rhode Island Blood Center. In addition to the flooding from the Pawtuxet River and its tributaries, many local ponds and lakes flooded, inundating nearby streets and neighborhoods with water. Both sewage treatment plants in Warwick and West Warwick were flooded and closed for a time during which residents were asked to only flush when necessary and to restrict water use. The Warwick plant was inundated with 78 million gallons of polluted water that had to be removed before wastewater treatment could resume. The mayor of Warwick issued an executive order shutting down the city's coin-operated laundries and asking health clubs to stop offering free showers to residents.

Damage amounts can be found in the March Storm Data when most of the damage occurred. Rivers and small streams remained in flood into April. Providence County 1 W (PVD)Tf Green Arpt P 01 0000EST 0 0 0.00K 0.00K Flood 1 SE Edgewood 05 Six to nine inches of rain fell across Providence County, resulting in rises on both the Blackstone River at Woonsocket and the Pawtuxet River at Cranston. The Blackstone rose to moderate flood and the Pawtuxet rose to nearly 21 feet, surpassing the previous flood of record set only two weeks prior of nearly 15 feet. The Woonasquatucket, Runnins, and Ten Mile Rivers also flooded. Several small streams rose above flood stage across Providence County, including the Woonasquatucket River at Centerdale and the Branch River near North Smithfield. Numerous streets and basements were flooded across all of Providence County, including Cranston, North Smithfield, Johnston, Scituate, East Providence, North Providence, Providence, Pawtucket, and Cumberland. Several were undermined and eroding away, including the major east/west route through Cumberland, Nate Whipple Highway (Route 120) and Old Sayles Hill Road in North Smithfield. The portion of Old Sayles Hill Road that eroded leads to a dead end, stranding residents at the end. Flooding over the railroad tracks between Providence and Attleboro, MA resulted in the Massachusetts Bay Transit Authority cancelling commuter rail service to Providence. About 45 people were evacuated from the Riveredge Village apartment complex in the Manton neighborhood of Providence. Roughly 120 homes were evacuated in the Valley View neighborhood in Cranston. A four building condo complex on Fordson Avenue was also evacuated. About 300 people total were evacuated from their homes in Cranston. In Cumberland, all 193 apartments in the Ashton Mill complex and 200 residents of an assisted living facility (One Mendon Road) were evacuated. A house on Dexter Lane in Scituate was flooded, trapping an elderly resident. Houses near the intersection of Warren and Waterman Avenues in East Providence were evacuated. Tenants from lower level units of an apartment building on Exchange Court in Pawtuxet were asked to evacuate due to flooding. A car on Valley Street in Providence was stuck in flood waters, leaving the driver stranded. Two homes on Tuxedo Street in Providence were looted while their owners were kept away for safety reasons. The Woonasquatucket River rose in Providence inundating two major parks and the Eagle Square shopping center, including an Eye and Audiology Clinic for the VA Hospital. It also flooded a bridge that takes Valley Street over the river and forced the evacuation of houses and some apartment complexes in nearby neighborhoods, incluing Olneyville and Manton. The animal shelter in Cumberland was evacuated to the animal shelter in nearby Lincoln.

One of Cumberland's largest employers, Hope Global, was damaged by the flooding. Employees were able to safeguard much of the equipment at the company by raising it off the floor several feet but 30,000 square feet worth of offices and furniture were ruined. Damage estimates for Hope Global thus far have totaled around $400,000.

In Woonsocket, flooding caused a national computer system failure at CVS that affected prescription services in all 7,000 of its pharmacies. Stores were able to fill prescriptions but were unable to process insurance claims. This resulted in some delays in filling the prescriptions. In North Providence, a dam was breached, emptying Geneva Pond into West River. A nearby bridge that carries Douglas Avenue over West River sustained damage to its abutments and was closed.

The Cranston wastewater treatment plant failed during the flooding, untreated sewage into the Pocasset River at a rate of 8 million gallons per day.

280 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

RHODE ISLAND

In Johnston, the Pocasset Bridge on Route 14 (Plainfield Street) that spans the Pocasset River was closed after it started to show four large cracks. Several items that had floated down the river were caught under the bridge, blocking the water flow. City Hall experienced some flooding as well, prompting employees to shut down the computer system.

Damage amounts can be found in the March Storm Data when most of the damage occurred. Rivers and small streams remained in flood into April. Washington County 2 SW Escoheag 01 0000EST 1 SSW Davisville 12 1530EST 0 0 0.00K 0.00K Flood

Five to ten inches of rain fell across Washington County, resulting in rises on the Pawcatuck River at Westerly and at Wood River Junction. The Pawcatuck River set a record of nearly fifteen and a half feet at Westerly and just over eleven feet at Wood River Junction. The Pawcatuck River overflowed its banks in Charlestown, closing Route 91 and Shannock Road. Numerous basements were flooded in South Kingstown, Narragansett, and Charlestown. Numerous roads were flooded in Exeter, Charlestown, Hopkinton, Narragansett, South Kingstown, and North Kingstown, including the intersection of Route 2 and Mail Road and washing away a portion of Route 102 in Exeter. A section of the Blue Pond Dam in Hopkinton washed away, flooding the area and washing out a portion of Route 3. Water flowed so ferociously through the Saugatucket River near the Palisades Mill complex in South Kingstown that windows were broken out of the mill and water flowed into the building, resulting in substantial damage. Lower levels of an office building in the Peace Dale section of South Kingstown were flooded. Sixteen homes on Summit Road in Exeter were isolated after a portion of the road washed out. Several drivers in Narragansett and Exeter had to be rescued from their cars after they drove into water three to four feet deep. One family in the Peace Dale section of South Kingstown had to be rescued by boat from their home. Four to six homes in the Green Hill section had to be evacuated as well. A bridge on Route 138 spanning the Chipuxet River in South Kingstown partially collapsed closing Route 138 between Route 2 and Ministerial Road. A second bridge on Route 138 spanning the Usquepaug River in Richmond was closed nearly eight weeks after the flooding after an underwater inspection of the bridge revealed it was damaged by the flooding at the end of March. The bridge is between Routes 2 and 112. It reopened about one week after it was closed. A privately owned dam at Glen Rock Reservoir in West Kingston was partially breached, however, the area downstream of the dam is wetlands so no structures were affected. Damage to structures at the University of Rhode Island in South Kingstown amounted to $1.85 million. The basements of all 22 buildings on campus flooded as well as classrooms and offices. Other facilities at the school were closed because of flooding damage to equipment. In addition, Route 138 was flooded cutting off access to the University of Rhode Island from Interstate 95. A mudslide washed onto two of the three rail tracks (one passenger, one freight) that run through North Kingstown near Routes 403 and 4, disrupting rail service through Rhode Island. A few residents in the area were asked to evacuate. Chapman Pond and Newton's Marsh flooded and along with flooding from the Pawcatuck River cut off an entire neighborhood from goods and services for at least a week. Residents were encouraged to evacuate after electricity was cut off for safety reasons for nearly a week. However, 20 of the 36 families stayed in their homes to protect them from the rising water. Nearly 10,000 residents of Westerly were impacted by the flooding and power outages that occurred, some of them have not been allowed back in their homes over a month later. The Broad Street Bridge was closed for safety reasons, blocking the main route in and out of Westerly from Connecticut. Several portions of Route 91, a main east-west artery, were flooded and closed. This wreaked havoc with bus schedules and daily commutes. Pawcatuck River flooding in Westerly left some homes flooded up to their roof lines. Basements, yards, and fields flooded on Block Island. Oil contamination from a home whose foundation collapsed and spilled heating oil, resulted in the temporary closure of shellfishing from HogPen Channel to Trim's Pond and Harbor Pond. Georgian Swamp off Corn Neck Road flooded a private lane cutting off access to two homes. A single, indirect injury occurred when an unidentified man cut his foot while walking through his flooded basement barefoot. Damage amounts can be found in the March Storm Data when most of the damage occurred. Rivers and small streams remained in flood well into April.

281 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

RHODE ISLAND

A low pressure system sat just south of Long Island for two days, bringing heavy rain to much of Southern New England during that time. A persistent southerly low level jet brought very moist air into the area, which resulted in high rainfall rates. A coastal front along the I-95 corridor enhanced rainfall in that area. This event followed a heavy rainfall and record flooding event in mid-March as well as a second lesser rain event about a week prior. Rivers across much of Massachusetts and Rhode Island were still high from those events and warm temperatures in northern Vermont and New Hampshire resulted in a period of snowmelt, that resulted in rises on both the mainstem Connecticut and Merrimack Rivers. All of these factors led to a second record rainfall and flooding event.

Two day rainfall totals across Southern New England ranged from an inch to ten inches. Though concentrated in Rhode Island and southeastern Massachusetts, all of Southern New England was affected by the flooding. In hardest hit Rhode Island, two day rainfall totals ranged from five to ten inches. Providence, Boston, and Blue Hill Observatory in Milton, MA set record monthly precipitation totals during the month of March. Providence also set the record for the wettest month ever in the period of record. Both the Pawtuxet River in Rhode Island and the Sudbury River in Massachusetts set floods of record.

River and areal flooding resulted in millions of dollars of damage across Rhode Island, with numerous homes, businesses, and people affected. A portion of Interstate 95, the main highway through Rhode Island, was closed for two days after the Pawtuxet River inundated the highway with up to three feet of water. Amtrak service through the state was suspended for several days because portions of the tracks were under up to two feet of water in several locations across the state. Passengers were rerouted through Springfield, Massachusetts. Though all 39 cities and towns in Rhode Island were affected, the most damage was seen in Warwick, West Warwick, Coventry, and Cranston, where the Pawtuxet and Pocasset Rivers flow through. Four dams in Rhode Island were breached and many others were overtopped and close to breaching, which resulted in the inspection of 42 dams throughout the state. Officials estimated that more than 500 people were evacuated from their homes because of rising water or the threat of rising water. More than 500 Rhode Island National Guardsmen were activated during the flooding, filling sandbags, directing traffic, and aiding in evacuations. Six National Grid substations were flooded and four were close to flooded, disrupting electrical service in Westerly and Warwick. One of the amphibious vehicles generally used on the Boston Duck Tours was lent to the state of Rhode Island to transport utility workers to and from these substations and switching terminals. Shellfishing grounds in the southern part of the state were closed temporarily over concerns of sewage and other contaminants in the water. They reopened about a week and a half later. Half a dozen sewage treatment plants through the state were overwhelmed or compromised by the flooding, leading to raw sewage being discharged into area rivers and bays. The Governor's office estimated that tens of thousands of properties were impacted by the flooding and about 4,000 workers were affected when the businesses they worked in were closed during and after the flooding. Numerous schools and many businesses, as well as the state government were closed for at least a day because of the flooding. President Obama issued a federal disaster declaration for the entire state of Rhode Island and residents received an automatic extension for filing their state and federal income taxes. The disaster declaration encompassed both the mid-March storm and this storm.

Providence County 1 S Woodlawn 22 1426EST 1 NE Cranston 1434EST 0 0 0.00K 0.00K Hail (1.00)

Quarter sized hail fell in Providence near Route 10. Penny sized hail fell in Cranston.

Scattered showers and thunderstorms developed ahead of an approaching cold front.

RIZ002-003 Southeast Providence - Western Kent 29 1430EST 1620EST 0 0 60.0K 0.00K Strong Wind

Low pressure over the Canadian Maritimes produced winds gusts of 40 to 50 mph throughout southern New England, resulting in scattered wind damage.

SOUTH CAROLINA, Central Mccormick County 1 SW Modoc 08 1915EST 1917EST 0 0 Hail (1.00)

Public reported quarter size hail at Modoc Campground. Edgefield County 4 NW Colliers 08 1920EST 1922EST 0 0 Thunderstorm Wind (60EG)

Sheriff dispatch reported trees down along Hwy. 23 near the McCormick and Edgefield County line.

A few severe storms developed ahead of a cold front that pushed across the Central Savannah River Area and Western Midlands on the evening of the 8th. Note: The estimated wind gust of 60 knots is equivalent to 69 mph.

282 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH CAROLINA, Central Edgefield County 4 NW Colliers 08 1920EST 1922EST 0 0 0.00K 3.00K Thunderstorm Wind (60EG)

Sheriff reported trees down along hwy 23 near the McCormick county line.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Mccormick County 1 SW Modoc 08 1925EST 1927EST 0 0 0.00K Hail (1.00)

Public reported quarter size hail at the Modoc Campground. Severe thunderstorms produced wind damage and hail across the western Midlands.

Saluda County 1 N Ward 08 2000EST 2003EST 0 0 Thunderstorm Wind (50EG)

Postal worker reported large limbs down in the town of Ward.

A few severe storms developed ahead of a cold front that pushed across the Central Savannah River Area and Western Midlands on the evening of the 8th. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Saluda County Ward 08 2000EST 2002EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Post Office reported large limbs down in Ward. Severe thunderstorms produced wind damage and hail across the western Midlands. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lancaster County 4 NE Lancaster 27 1505EST 1507EST 0 0 Hail (1.00)

Public reported quarter size hail. A couple of severe thunderstorms developed across the region during the afternoon ahead of a strong shortwave.

Lancaster County 1 W Unity 28 1505EST 1507EST 0 0 0.00K Hail (1.00)

Public reported quarter size hail on George Howle road in northern Lancaster county near the state line.

Kershaw County 4 SSE Liberty Hill 28 1648EST 1650EST 0 0 5.00K 0.00K Thunderstorm Wind (50EG)

Spotter reported large branches down on a couple of homes on Lake Wateree on Beaver Creek road.

Isolated severe thunderstorms produced some large hail and wind damage in the upper Midlands and Pee Dee region. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

SOUTH CAROLINA, North Coastal Darlington County 3 ENE Oats 25 1840EST 1843EST 0.63 50 0 3 750.00K 0.00K Tornado (EF2)

283 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH CAROLINA, North Coastal

A National Weather Service Storm Survey Team confirmed an EF2 tornado with winds estimated to 130 mph. The tornado first touched down in a stand of pine trees, snapping approximately 30 of them several feet off the ground. The largest of the snapped trees was 12 inches in diameter. The tornado then moved east into a cluster of homes and mobile homes along East 7 Pines Street. One mobile home was blown 20 yards off its frame and was completely destroyed. The debris was blown into another single wide mobile home which was subsequently destroyed. A large pecan tree was uprooted before the tornado lifted off the ground. The damage was rated EF1 with winds to 100 mph. The second touchdown occurred a few hundred yards to the east. The tornado moved over a stand of trees and descended practically on top of a two story single family residence located on East 7 Pines Street. This dwelling was blown off its foundation and flipped over onto two automobiles and in the process was completely destroyed. Three people were in the home at the time. They took shelter in an interior hallway moments before the tornado struck. They were transported to the hospital, treated for minor injuries and released. A Ford Ranger Pickup was lifted and dropped approximately 50 yards away. A horse trailer was lifted and dropped 100 yards away. A large wood framed workshop and horse barn were also destroyed. The tornado moved east approximately two tenths of a mile and damaged or uprooted several trees as it lifted. The damage was rated EF2 with winds to 130 mph.

Darlington County Darlington Moores Ar 25 1845EST 1 ESE Darlington 1857EST 2.99 75 0 0 6.25M 0.00K Tornado (EF2)

A National Weather Service Storm Survey Team confirmed an EF2 tornado with winds estimated to 115 mph. The tornado first touched down near Syracuse Street and Rogers Road. An unanchored double-wide mobile home was rolled off its foundation and onto its side. Several trees along Syracuse Street were uprooted or snapped or had large branches broken off. Several homes suffered minor to moderate shingle damage, largely as a result of fallen trees or branches. The damage was rated EF1 with winds to 90 mph. After briefly lifting, the tornado touched down as it approached Highway 401 and caused major damage to a large steel building. Two bay doors were blown in and a large portion of the roof was lifted and blown off. Sheet metal from the roof was strewn for about 200 yards. A small wooden garage and building were destroyed before the tornado lifted near Highway 401. The damage was rated EF1 with winds to 100 mph. The tornado touched down one last time between Lightly Street and Southern Pine Street. Numerous hardwood trees were uprooted or snapped. A few of these trees, with diameters up to 24 inches, were snapped a few feet from the ground. There was significant damage to some residential homes, primarily the result of falling trees or branches. The tornado continued across Highway 52 business where several businesses and structures sustained minor to moderate damage. A set of car wash bays were blown over and a church lost many shingles and a small portion of its roof. The tornado then continued east of Highway 52 business through a residential neighborhood. Several large trees up to 20 inches in diameter were uprooted. A large section of roof was blown off a home. Cain Elementary School suffered significant damage. Many awnings at the school were damaged or destroyed and one building lost half its roof. Shortly after causing the roof damage to Cain Elementary, the tornado caused more tree damage as it lifted through the treetops. As these trees or their branches fell, several residences sustained minor to moderate damage to include some roof shingle damage. The damage was rated EF2 with winds to 115 mph.

Darlington County 2 SSW Mechanicsville 25 1908EST 1909EST 0.06 50 0 0 25.00K 0.00K Tornado (EF1)

A National Weather Service Storm Survey Team confirmed an EF1 tornado with winds up to 100 mph. A tornado briefly touched down along South Charleston Road. The tornado uprooted or snapped about a dozen hardwood trees, some as large as 18 inches in diameter. A thunderstorm developed along a surface boundary during the evening. The thunderstorm developed supercell characteristics soon after moving into Darlington County and spawned several tornadoes over its lifetime.

Marlboro County 3 SW Bennetsville Arpt 27 1447EST 1449EST 0 1 55.00K 0.00K Thunderstorm Wind (83EG)

A 40 x 60 foot section of roof was blown off a large metal warehouse of a Flakeboard MDF Plant on Highway 912. A trailer was blown off its foundation at the plant. The rear window of a pickup truck was shattered. One person was trapped between a trailer and metal beam and suffered a broken arm. National Weather Service personnel estimated a wind gust to 95 mph caused the damage. Note: The estimated wind gust of 83 knots is equivalent to 96 mph. Marlboro County 1 SSW Bennettsville 27 1500EST 1501EST 0 0 1.50K 0.00K Thunderstorm Wind (52EG)

A tree was reported down on a house along Spruce Street. No damage to the house was reported.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

284 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH CAROLINA, North Coastal Marlboro County Mill Vlg 27 1500EST 1501EST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)

Trees were reported down along Highway 38. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Dillon County 3 N Minturn 27 1510EST 1511EST 0 0 8.00K 0.00K Thunderstorm Wind (60EG)

Trees and power lines were reported down near the intersection of Carolina Church Road and Heustess Road. One tree fell onto a car causing minor damage, but no injuries. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Marlboro County 1 SW Clio 27 1510EST 1512EST 0 0 55.00K 0.00K Thunderstorm Wind (83EG)

A National Weather Service Storm Survey Team confirmed a microburst with winds to 95 mph. The most significant structural damage occurred to a small three-bay auto garage on Juniper Street near Highway 9 in Clio. This brick and cinder block structure lost its sheet metal roof just before the exterior walls collapsed. Two people took shelter inside the building just before the storm hit and were not injured. The roof of the building was lifted and blown approximately 100 yards. A snapped power pole appeared to be the result of the airborne roof. Trees were also down. The damage pattern was indicative of a strong and narrow microburst. The microburst was estimated to be 20 yards wide and 100 yards long.

Note: The estimated wind gust of 83 knots is equivalent to 96 mph. Marlboro County 1 WSW Five Forks 27 1510EST 1511EST 0 0 3.00K 0.00K Thunderstorm Wind (60EG)

Two large trees were reported down across Highway 381 between Driggers Road and Coxe Road. Time was estimated based on radar data. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Dillon County 2 NW Oakland Xrds 27 1520EST 1521EST 0 0 7.00K 0.00K Thunderstorm Wind (60EG)

Trees and power lines down on Mckays Bridge Road. Time was estimated based on radar data.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Marion County 1 SSW Mullins 27 1548EST 1549EST 0 0 4.00K 0.00K Thunderstorm Wind (52EG)

A tree was reported down on a house along Gibson Street. Minor roof damage was also reported.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Dillon County 1 SSW Floydale 27 1550EST 1551EST 0 0 7.00K 0.00K Thunderstorm Wind (60EG)

Trees and power lines were reported down near the intersection of Highway 917 and Burke Road.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Marion County Mullins 27 1555EST 1556EST 0 0 4.00K 0.00K Thunderstorm Wind (52EG)

A large tree was reported down on Avon Circle blocking the road. When the tree fell, it also took down nearby power lines.

285 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH CAROLINA, North Coastal

Cold pool associated with an area of low pressure aloft and surface heating steepened lapse rates across the area. An approaching shortwave helped to develop thunderstorms west of Interstate 95 during the mid afternoon. These thunderstorms quickly intensified as they moved east at up to 50 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

SOUTH CAROLINA, Northwest Oconee County Fair Play 08 1601EST 1603EST 0.7 30 0 0 5.00K Tornado (EF0)

A short tornado track was surveyed in the Fair Play community. The tornado touched down along highway 59 between Cleveland Creek Rd and Doctors Rd. Part of the roof was blown off a manufactured home at this location, and numerous trees were snapped off or uprooted. The tornado continued in a northeast direction toward the Pine Grove Rd area, where damage to trees continued near the intersection of Grant Rd. The tornado appeared to dissipate in this area.

Anderson County 3 W (AND)Anderson Co Arp 08 1618EST 0 0 Thunderstorm Wind (50EG)

Trees were blown down along highway 187 near Lake Hartwell. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Anderson County 2 E La France 08 1626EST 1630EST 2.04 75 0 0 100.00K Tornado (EF1)

A tornado damage path began in the Harper Rd area of Pendleton. A large detached garage had its windward-facing doors blown in. This caused a large cargo door on the back side of the garage to blow out. Several horse stables on Harper Rd had metal roofs partially peeled back or blown off. Numerous trees were snapped off in this area, with a few large trees uprooted. The tornado continued northeast to Liberty Highway, just south of the Cherry St extension. The metal roofing was partially torn off a barn at this location, and several outbuildings were damaged or blown away. A large, well-constructed home received minor eaves damage. The tornado turned in a more east northeasterly direction at this point, dissipating shortly after crossing Liberty Highway.

Anderson County 4 ENE Denver 08 1629EST 0 0 Thunderstorm Wind (50EG)

Trees were blown down near I-85 north of Anderson. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Anderson County 7 WNW Cheddar 08 1634EST 0 0 Thunderstorm Wind (50EG)

Trees were blown down near mile marker 26 on Interstate 85. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Greenville County 1 SW Greenville Donaldson 08 1700EST 0 0 Thunderstorm Wind (50EG)

Power lines were blown down along highway 25 near the Donaldson Center. A couple trees were blown down in the area as well. A strong cold front crossed the region during the evening hours, triggering severe thunderstorms and a couple non-supercell tornadoes. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Abbeville County 1 SE Calhoun Falls 25 0126EST 0 0 Hail (1.75)

A cluster of strong storms moved across the southern part of the Upstate during the early morning hours. One of the storms produced large hail. York County 3 E Sharon 27 1410EST 0 0 Hail (0.75)

286 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH CAROLINA, Northwest York County Boyd Hill 27 1430EST 0 0 Hail (0.75)

York County 1 NNW Lesslie 27 1435EST 0 0 Hail (1.25)

Spartanburg County 1 SSW Sigsbee 27 1607EST 1 NE Drayton 1610EST 0 0 Hail (1.00)

Several different sources reported hail ranging from dime to quarter size from the intersection of I-85 and I-26 to Skylyn Dr across the north side of Spartanburg. Cherokee County 3 SSE White Plains 27 1639EST 0 0 Hail (0.88)

Nickel size hail was reported on highway 150, about 10 miles south southwest of town.

Cherokee County 1 WNW Saratt 27 1640EST 0 0 Hail (0.75)

Dime size hail was reported at the intersection of highway 211 and Garner Rd.

Chester County 1 W Chester Muni Arpt 27 1715EST 0 0 Hail (0.75)

Penny size hail was reported near Old York Rd and Darby Rd. Chester County 2 NW Richburg 27 1732EST 0 0 Hail (0.75)

Cherokee County 38 ESE Saratt 27 1745EST 0 0 Thunderstorm Wind (50EG)

Multiple trees were blown down near highway 97 and Ross Dye Rd.

An upper low triggered scattered afternoon thunderstorms over Upstate South Carolina. The storms produced hail of various sizes. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

SOUTH CAROLINA, South Coastal Beaufort County 2 WNW Bluffton 08 2211EST 2212EST 0.15 20 0 0 40.00K 0.00K Tornado (EF0)

The National Weather Service in Charleston, South Carolina, in conjunction with Beaufort county Emergency Management, confirmed a small EF-0 tornado touched down at 1111 pm on April 8, 2010, two miles west of Bluffton and traveled northeast approximately 0.15 miles before dissipating. The tornado snapped off the tops of a few pine trees, a few of which landed on and damaged vehicles, tore off some aluminum flashing from homes, knocked down several fences, destroyed a shed and damaged a swing set. Maximum winds were estimated near 75 mph and the maximum path width was around 20 yards wide.

SCZ045 Berkeley 08 2230EST 0 0 1.0K 0.00K Strong Wind A strong cold front moved through southern South Carolina resulting in scattered showers and thunderstorms across the area.

SCZ044 Dorchester 17 1430EST 1730EST 0 0 25.0K 0.00K Wildfire

The combination of low humidity, warm temperatures, breezy conditions and dry fuels, resulted in an increase in fire danger across southern South Carolina.

287 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, Central and North Brown County 10 W Winship 01 0000CST 11 SW Rudolph 30 2359CST 0 0 0.00K 0.00K Flood

Day County 9 NW Pierpont 01 0000CST 1 NW Crandall 30 2359CST 0 0 0.00K 0.00K Flood

Marshall County 8 W Newark 01 0000CST 7 W Langford 30 2359CST 0 0 0.00K 0.00K Flood

Spink County 7 W Mansfield 01 0000CST 11 WSW Tulare 30 2359CST 0 0 0.00K 0.00K Flood

Snowmelt flooding from March continued throughout April for several counties in northeast South Dakota. Lake levels also remained high across the area and continued to threaten homes and businesses particularly in Day and Marshall counties. Large waves, generated by strong winds off and on during the month, caused some property damage. Countless roads continued to be covered with water, especially throughout Brown county. Many residents continued to have difficulty getting in and out of their properties along with having to take long alternate routes.

Brown County 5 NW Hecla 01 0000CST 3 NE Ordway 30 2359CST 0 0 0.00K 0.00K Flood

Spink County 3 ENE Duxbury 01 0000CST 4 NNW Redfield 30 2359CST 0 0 0.00K 0.00K Flood

March snowmelt flooding on the James River continued throughout April across Brown and Spink counties. The James River near Redfield went below flood stage on April 23rd. Many roads along with abundant agricultural and pastureland remained flooded.

SDZ022 Hamlin 01 0000CST 30 2359CST 0 0 0.00K 0.00K Lakeshore Flood

Snowmelt runoff from March along with drainage from lakes above Lake Poinsett caused the lake to rise to well overfull and threaten many lake homes. Several hundred volunteers placed thousands of sandbags to protect lake property. Strong winds off and on during the month generated large waves which caused some property damage.

Codington County 2 N (ATY)Watertown Arpt 01 0000CST 08 0700CST 0 0 0.00K 0.00K Flood

The Big Sioux River at the gaging site located three miles northwest of Watertown slowly fell at the beginning of the month, finally going to below flood stage on April 8th. A few roads along with some agricultural land were affected.

Spink County 11 WSW Tulare 01 0000CST 10 0700CST 0 0 0.00K 0.00K Flood

March flooding continued on Turtle Creek at Redfield into early April with the creek falling to below flood stage on April 10th. Minor flooding of agricultural and pastureland occurred.

Corson County 2 NW Maple Leaf 01 0000MST 2 S Mahto 03 0700MST 0 0 0.00K 0.00K Flood

Minor flooding continued on Oak Creek for a short time into early April. Oak Creek went below flood stage on April 3rd.

288 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, Central and North SDZ003-015 Corson - Dewey 02 0300CST 1200CST 0 0 Heavy Snow

A band of heavy snow set up across Corson and Dewey counties during the early morning hours of April 2nd. Along with with heavy wet snow, northwest winds gusting up to 40 mph developed. By the time the snow ended in the late morning hours, 6 to 8 inches of snow had fallen. The heavy snow, combined with the strong winds, downed many power poles across the region along with making travel treacherous. Some snowfall amounts included; 4 inches at Eagle Butte; 6 inches at Timber Lake, McLaughlin, and 14 miles north of Isabel; 7 inches at Isabel and 6 miles southeast of McIntosh; 8 inches southwest of Keldron. More than 400 poles were lost to the heavy snow leaving approximately 800 people without power. Eighty lineman worked through the Easter weekend in the snow and mud. McLaughlin and Keldron were the hardest hit. Several hundred people were still without power on April 5th.

Campbell County 1 SE Artas 12 0830CST 0 0 Hail (1.75)

Campbell County 2 NNW Artas 12 0845CST 0 0 Hail (1.25)

Mcpherson County 3 WNW Spring Creek Colony 12 1049CST 0 0 Hail (0.88)

Mcpherson County 5 SSE Spring Creek Colony 12 1053CST 0 0 Hail (1.00)

Brown County 6 W Winship 12 1113CST 0 0 Hail (1.00)

Brown County 5 WSW Winship 12 1125CST 0 0 Hail (1.00)

Marshall County Langford 12 2108CST 0 0 Hail (0.75)

Several severe thunderstorms moved across north central South Dakota producing large hail up to the size of golfballs.

Marshall County Langford 12 2108CST 0 0 Hail (0.75)

Penny size hail fell from a strong thunderstorm near Langford.

SDZ003-015-034> Corson - Dewey - Hughes - Hyde - Lyman - Sully 036-048 13 1200CST 1700CST 0 0 High Wind

Very strong south winds developed over central and northeast South Dakota in the early afternoon and continued into the early evening hours. South winds of 30 to 50 mph with gusts to near 70 mph caused some structural and shingle damage across the area. In Presho, the chamber sign was blown down with a carport tipped and damaged. A pickup on Interstate-90 lost a camper to the high winds. The high winds, combined with lowered humidity and dry fuels, helped fan several grassland fires across the region. The largest fire was started from a downed power line in Campbell County near the town of Glenham. The fire grew to be five miles long by two miles wide and traveled eight miles before it was brought under control. Almost 6000 acres were burned with nearly 20 fire departments dispatched.

Corson County 7 SSW Keldron 13 1330MST 0 0 Thunderstorm Wind (52EG)

Sixty mph winds were estimated southwest of Keldron. A couple thunderstorms brought damaging winds to 60 to 70 mph in central South Dakota. A calving shed was flipped along with some roof damage to a home. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

289 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, Central and North SDZ017 Faulk 13 1400CST 1700CST 0 0 High Wind

Very strong south winds developed over central and northeast South Dakota in the early afternoon and continued into the early evening hours. South winds of 30 to 50 mph with gusts to near 70 mph caused some structural and shingle damage across the area. In Presho, the chamber sign was blown down with a carport tipped and damaged. A pickup on Interstate-90 lost a camper to the high winds. The high winds, combined with lowered humidity and dry fuels, helped fan several grassland fires across the region. The largest fire was started from a downed power line in Campbell County near the town of Glenham. The fire grew to be five miles long by two miles wide and traveled eight miles before it was brought under control. Almost 6000 acres were burned with nearly 20 fire departments dispatched.

Corson County 2 WSW Mc Intosh Muni Arpt 13 1410MST 0 0 Thunderstorm Wind (52EG)

Sixty mph winds were estimated by a trained spotter. A couple thunderstorms brought damaging winds to 60 to 70 mph in central South Dakota. A calving shed was flipped along with some roof damage to a home. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

SDZ004-009-016- Campbell - Jones - McPherson - Potter - Stanley - Walworth 033-045 13 1415CST 1700CST 0 0 High Wind

Very strong south winds developed over central and northeast South Dakota in the early afternoon and continued into the early evening hours. South winds of 30 to 50 mph with gusts to near 70 mph caused some structural and shingle damage across the area. In Presho, the chamber sign was blown down with a carport tipped and damaged. A pickup on Interstate-90 lost a camper to the high winds. The high winds, combined with lowered humidity and dry fuels, helped fan several grassland fires across the region. The largest fire was started from a downed power line in Campbell County near the town of Glenham. The fire grew to be five miles long by two miles wide and traveled eight miles before it was brought under control. Almost 6000 acres were burned with nearly 20 fire departments dispatched.

Stanley County 5 SSW Hayes 13 1435MST 0 0 Thunderstorm Wind (52EG)

A calving shed was flipped and destroyed by sixty mph winds.

A couple thunderstorms brought damaging winds to 60 to 70 mph in central South Dakota. A calving shed was flipped along with some roof damage to a home. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

SDZ051 Buffalo 13 1440CST 1700CST 0 0 High Wind

Very strong south winds developed over central and northeast South Dakota in the early afternoon and continued into the early evening hours. South winds of 30 to 50 mph with gusts to near 70 mph caused some structural and shingle damage across the area. In Presho, the chamber sign was blown down with a carport tipped and damaged. A pickup on Interstate-90 lost a camper to the high winds. The high winds, combined with lowered humidity and dry fuels, helped fan several grassland fires across the region. The largest fire was started from a downed power line in Campbell County near the town of Glenham. The fire grew to be five miles long by two miles wide and traveled eight miles before it was brought under control. Almost 6000 acres were burned with nearly 20 fire departments dispatched.

Stanley County 9 NW Wendte 13 1445MST 0 0 Thunderstorm Wind (61EG)

Seventy mph winds damaged the roof of a home. A couple thunderstorms brought damaging winds to 60 to 70 mph in central South Dakota. A calving shed was flipped along with some roof damage to a home. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

SDZ006-010-018- Brown - Edmunds - Hand - Spink 037 13 1450CST 1640CST 0 0 High Wind

290 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, Central and North

Very strong south winds developed over central and northeast South Dakota in the early afternoon and continued into the early evening hours. South winds of 30 to 50 mph with gusts to near 70 mph caused some structural and shingle damage across the area. In Presho, the chamber sign was blown down with a carport tipped and damaged. A pickup on Interstate-90 lost a camper to the high winds. The high winds, combined with lowered humidity and dry fuels, helped fan several grassland fires across the region. The largest fire was started from a downed power line in Campbell County near the town of Glenham. The fire grew to be five miles long by two miles wide and traveled eight miles before it was brought under control. Almost 6000 acres were burned with nearly 20 fire departments dispatched.

Dewey County Bear Creek 28 1435MST 0 0 Hail (1.00)

An isolated thunderstorm in Dewey county brought quarter size hail near Lantry.

Brown County 1 NW Aberdeen 30 1429CST 0 0 Hail (1.00)

Brown County 2 W Aberdeen 30 1433CST 0 0 Hail (1.00)

Brown County Aberdeen 30 1442CST 0 0 Hail (1.00)

Brown County 4 NE Houghton 30 1538CST 0 0 Hail (0.75)

Codington County 8 W South Shore 30 1600CST 0 0 Hail (0.75)

Several thunderstorms brought penny to quarter size hail to parts of northeast South Dakota.

SOUTH DAKOTA, Southeast Beadle County 3 E Hitchcock 01 0000CST 30 2359CST 0 0 0.00K 0.00K Flood

Flooding of the James River continued from March through all of April. The river fell slowly during the month, with no new flooding, but farmland and some roads remained flooded. The river fell from 7.6 feet above flood stage at Huron at the start of April to 4 feet above flood stage at the end of the month.

Davison County 8 NNW Mitchell 01 0000CST 30 2359CST 0 0 0.00K 0.00K Flood

Flooding of the James River continued from March through all of April. The river fell slowly during the month, with no new flooding. Farmland and some roads remained flooded, but flooding of major roads abated. The river fell from 6.7 feet above flood stage near Mitchell at the start of April to 4.1 feet above flood stage at the end of the month.

Hanson County 1 N Riverside 01 0000CST 9 S Alexandria 30 2359CST 0 0 0.00K 0.00K Flood

Flooding of the James River continued from March through all of April. The river fell slowly during the month, with no new flooding, but farmland and some roads remained flooded. Hutchinson County 6 NW Milltown 01 0000CST 3 E Kaylor 30 2359CST 0 0 0.00K 0.00K Flood

291 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, Southeast

Flooding of the James River continued from March through all of April. The river fell slowly during the month, with no new flooding, but farmland and some roads remained flooded. The river fell from 5.7 feet above flood stage near Scotland at the start of April to 2.7 feet above flood stage at the end of the month.

Sanborn County 10 N Forestburg 01 0000CST 30 2359CST 0 0 0.00K 0.00K Flood

Flooding of the James River continued from March through all of April. The river fell slowly during the month, with no new flooding. Farmland and some roads remained flooded, but flooding of major roads abated. The river fell from 6 feet above flood stage at Forestburg at the start of April to 3.3 feet above flood stage at the end of the month.

Yankton County 9 NNW Lesterville 01 0000CST 3 E Yankton 30 2359CST 0 0 0.00K 0.00K Flood

Flooding of the James River continued from March through all of April. The river fell slowly during the month, with no new flooding, but farmland and some roads remained flooded. The river fell from 5.7 feet above flood stage near Scotland at the start of April to 2.7 feet above flood stage at the end of the month.

Flooding of the James River which began in March due to snowmelt continued through all of April, with the river falling slowly during the month. Brookings County 6 NNW Bruce 01 0000CST 12 1800CST 0 0 0.00K 0.00K Flood

Continued flooding of the Big Sioux River from March abated and ended in early April, with the flooding affecting mainly fields adjacent to the river. Starting the month at near a foot above flood stage, the river fell below flood stage on April 12th near Bruce, and on April 8th near Brookings.

Union County 8 ENE Alcester 01 0000CST 3 SE Jefferson 04 1800CST 0 0 0.00K 0.00K Flood

Continued flooding of the Big Sioux River from March abated and ended in early April, with minor flooding affecting mainly fields adjacent to the river. Starting the month at near a foot above flood stage several miles northeast of Richland, the river fell below flood stage on April 4th. Continued flooding of parts of the Big Sioux River from March snowmelt abated and ended during the first two weeks in April.

Beadle County Hitchcock 01 2340CST 0 0 0.00K 0.00K Hail (1.75)

A thunderstorm produced golf ball size hail at the town of Hitchcock.

SDZ057 Brule 13 1326CST 1520CST 0 0 0.00K 0.00K High Wind

Strong southerly gradient winds on a warm early Spring day reached sustained speeds of 45 mph with gusts as high as 64 mph in the Missouri River Valley at Chamberlain during the afternoon of April 13th.

Union County 8 N Alsen 23 2154CST 0 0 0.00K 0.00K Hail (0.75)

A thunderstorm produced penny size hail at Beresford during the evening of April 23rd.

Turner County 4 SW Marion 24 1318CST 1323CST 0 0 0.00K 0.00K Hail (1.00)

Large hail, along with smaller size hail, covered the ground.

292 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, Southeast Hutchinson County Freeman 24 1335CST 1350CST 0 0 1.00K 0.00K Hail (1.00)

Large hail covered the ground to a depth of 2 inches in the town, with the hail piled higher at some spots. The dense fall of hail broke a few windows, shredded two screens at one house, and caused an unknown amount of damage to trees and other plants from stripped leaves and buds.

Minnehaha County 3 ENE Buffalo Trading Post 24 1545CST 0 0 0.00K 0.00K Hail (1.00)

Thunderstorms produced large hail at a few locations in southeast South Dakota during the afternoon of April 24th.

Turner County 1 W Parker 26 1945CST 0 0 0.00K 0.00K Hail (0.75)

A thunderstorm produced penny size hail at Parker in southeast South Dakota on the evening of April 26th.

SOUTH DAKOTA, West

SDZ001-024-028 Central Black Hills - Harding - Northern Black Hills - Northern Foot Hills

01 1600MST 02 1400MST 0 0 0.00K 0.00K Winter Storm

A strong spring storm produced rain and snow across the area. Heavy snow fell across far northwestern South Dakota and the northern Black Hills. Snowfall ranged from six to 12 inches, with as much as 20 inches over the higher elevations of the northern Black Hills.

08 2300MST 09 0200MST 0 0 0.00K 0.00K High Wind

SDZ031-073 Pennington Co Plains - Southern Meade Co Plains 08 2300MST 09 0200MST 0 0 0.00K 0.00K High Wind

SDZ013-026 Northern Meade County Plains - Rapid City 09 0000MST 0200MST 0 0 0.00K 0.00K High Wind

A quick moving cold front brought strong winds to portions of the northwestern and west central South Dakota plains overnight. Sustained winds of 35 to 45 mph and gusts around 60 mph developed behind the front and persisted for a couple of hours. Meade County Tilford 13 1041MST 1044MST 0 0 0.00K 0.00K Hail (0.75)

A thunderstorm dropped penny sized hail in Tilford.

SDZ047 Todd 13 1100CST 1700CST 0 0 0.00K 0.00K High Wind

A tight pressure gradient produced sustained south winds of 30 to 45 mph and gusts over 60 mph across Todd and Tripp Counties. Meade County 1 N Hereford 13 1120MST 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.

293 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, West Meade County 8 NE Ellsworth Afb 13 1125MST 0 0 0.00K 0.00K Hail (1.00)

Meade County 8 NE Ellsworth Afb 13 1125MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Estimated wind gusts were 60 mph. A severe thunderstorm produced quarter sized hail and wind gusts to 60 mph from near Ellsworth Air Force Base to the Hereford area. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

SDZ049 Tripp 13 1200CST 1600CST 0 0 0.00K 0.00K High Wind

A tight pressure gradient produced sustained south winds of 30 to 45 mph and gusts over 60 mph across Todd and Tripp Counties. Meade County Enning 13 1230MST 0 0 0.00K 0.00K Hail (1.00)

Meade County Enning 13 1230MST 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. Meade County 2 SE White Owl 13 1235MST 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. Meade County 5 SE White Owl 13 1240MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Estimated wind gusts were 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Meade County Howes 13 1255MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts were estimated around 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jackson County 1 NW Cottonwood 13 1300MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds toppled several calf shelters. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Ziebach County 3 NE Red Elm 13 1302MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts were estimated at 60 mph. A line of severe thunderstorms produced wind gusts around 60 mph and large hail across west central South Dakota. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Bennett County Allen 13 1315MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Estimated 60 mph wind gusts. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jackson County 1 NE Wanblee 13 1338MST 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.

294 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

SOUTH DAKOTA, West Jackson County 1 NW Kadoka 13 1340MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts estimated at 60 mph. A severe thunderstorm produced wind gusts around 60 mph across northwestern Bennett and Jackson Counties. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Haakon County 11 NE Milesville 13 1400MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Wind gusts were estimated at 60 mph. A severe thunderstorm produced 60 mph wind gusts in northeastern Haakon County. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jackson County Belvidere 13 1405MST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Estimated wind gust of 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Jackson County 12 NE Belvidere 13 1415MST 0 0 10.00K 0.00K Thunderstorm Wind (52EG)

Thunderstorm winds blew roofs off three pole barns and scattered the tin across a county road.

A severe thunderstorm produced wind gusts around 60 mph across northwestern Bennett and Jackson Counties. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Mellette County Norris 13 1510CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Dime sized hail also fell. A severe thunderstorm produced 60 mph wind gusts and small hail in Norris. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. TENNESSEE, Central Humphreys County 1 E New Johnsonville 07 2110CST 2112CST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A trained spotter estimated that winds gusted to nearly 60 mph in a thunderstorm.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Dickson County 2 W Daniel 07 2240CST 0 0 0.00K 0.00K Hail (1.00)

Hail approximately 1 inch in diameter fell along Highway 49.

Davidson County Nashville 07 2330CST 2335CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Two trees were reported downed and blocking roads in the Nashville area. One was at the intersection of Massman Drive and Patricia Drive. The other one was at the intersection of Porter Road and Wendell Avenue in Hermitage.

A few severe thunderstorms affected Middle Tennessee ahead of a strong cold front. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Giles County 2 WSW Sumac 24 0850CST 0853CST 0 0 5.00K 1.00K Thunderstorm Wind (50EG)

Tin roof was peeled off barn...large tree limbs were blown down.

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

295 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, Central Marshall County 1 E Lewisburg 24 0850CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Marshall county sheriff"s office reports a few trees down across county back roads across the county.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Williamson County 2 ESE Douglas 24 0950CST 0952CST 0 0 8.00K 0.00K Lightning

A 6 inch hole was blown in the roof of a home. Stewart County 7 SSE Ft Henry 24 1450CST 0 0 9.00K 0.00K Thunderstorm Wind (53EG)

Stewart county sheriff"s office reported multiple power lines down along state highway 232.

Note: The estimated wind gust of 53 knots is equivalent to 61 mph. Stewart County 1 W Dover 24 1453CST 0 0 3.00K 0.00K Thunderstorm Wind (51EG)

Amateur radio reported that multiple trees were downed across the county.

Note: The estimated wind gust of 51 knots is equivalent to 59 mph. Houston County Erin 24 1535CST 0 0 5.00K 0.00K Thunderstorm Wind (51EG)

Houston county sheriff"s office and central dispatch reported multiple trees and power lines down across northern and southwestern portions of the county. Note: The estimated wind gust of 51 knots is equivalent to 59 mph. Perry County 5 NNW Pine View 24 1540CST 1547CST 5.01 300 0 0 70.00K 0.00K Tornado (EF1)

A tornado with maximum winds of 100 mph entered Perry county near Simms Road along the eastern side of the Tennessee river. Damage continued northeastward...for a length of 13.8 miles and a maximum width of 300 yards. Hundreds of soft and hard wood trees were snapped or uprooted. There was some roof damage noted.

Humphreys County 4 W Pruette Spg 24 1547CST 4 E Buffalo 1557CST 8.84 200 0 0 15.00K 0.00K Tornado (EF1)

The tornado entered Humphreys County just north of the intersection of Blue Creek and Crooked Creek Roads. Damage consisting of snapped and uprooted trees continued almost nine miles northeast crossing Interstate 40 just east of the Highway 13 exit. The last evidence of damage was along Barren Hollow Road just north of I-40.

Montgomery County 3 WNW St Bethlehem 24 1552CST 0 0 0.00K 0.00K Hail (1.00)

Montgomery County 2 N Clarksville 24 1553CST 0 2 18.00K 0.00K Thunderstorm Wind (55EG)

Tree fell on a car on Trenton road near exit one on I-24. Two people were taken to the hospital with injuries. Extent of injuries was unknown. Shutters were blown off of a house in the same area.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph.

296 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, Central Montgomery County 3 ENE Hampton Station 24 1603CST 0 0 5.00K 0.00K Thunderstorm Wind (61EG)

Trained spotter reported an estimated gust of 70 mph. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Dickson County Dickson 24 1644CST 0 0 1.00K 0.00K Thunderstorm Wind (56EG)

Trained spotter estimated 60 to 65 mph wind gust along i-40 and hwy 46.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Hickman County Aetna 24 1715CST 1717CST 1.84 100 0 0 30.00K 0.00K Tornado (EF1)

A tornado with max winds of 90 mph touched down southwest of the Aetna community along state highway 48. Damaged continued to the northeast along state highway 48 for a length of 2 miles and a maximum width of 100 yards. Hundreds of trees were uprooted and snapped with a couple of small sheds and trailer destroyed. Some minor roof damage was noted on a dozen homes.

Sumner County 1 SSW Kansas 24 1830CST 0 0 0.00K 0.00K Funnel Cloud

A funnel cloud was reported on highway 31 north of Gallatin.

Macon County 1 NW Eulia 24 1842CST 1 S New Zion 1844CST 1.51 50 0 0 16.00K 0.00K Tornado (EF0)

A tornado with max winds of 85 mph touched down at the intersection of state highway 52 and rocky mound road. Damaged continued to the north northeast for an approximately length of 1.5 miles and a maximum width of 50 yards. Multiple shallow rooted trees were uprooted with one small barn destroyed.

Sumner County 1 S Gallatin 24 1910CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Summer county EMA reported telephone poles downed with wires across the road at the 1100 block of liberty lane in Gallatin.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Wilson County 1 N Mt Juliet 24 1936CST 0 0 8.00K 0.00K Lightning

Wilson county emergency management agency reported that lightning started a house and field fire on Terrance Hill road.

Pickett County Byrdstown 24 2115CST 0 0 0.00K 0.00K Funnel Cloud

A funnel cloud was reported in Byrdstown. Low Pressure moved west of Middle Tennessee during the late afternoon and evening of April 24th. A line of severe thunderstorms developed over West Tennessee ahead of a strong cold front.

297 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, Central Davidson County 1 NW Brentwood 27 1103CST 1105CST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail was reported on the Davidson and Williamson county line at interstate 65.

Lawrence County 1 W Lawrenceburg 27 1215CST 1217CST 0 0 5.00K 0.00K Thunderstorm Wind (43EG)

One tree was reported down in Lawrenceburg which fell on a car...trapping a person inside. Estimated wind gust was around 50 mph. Note: The estimated wind gust of 43 knots is equivalent to 49 mph. Maury County 1 NW Canaan 27 1239CST 1241CST 0 0 2.00K 0.00K Thunderstorm Wind (48EG)

Minor damage occurred to siding on a home. Bradford Pear trees were also damaged.

Note: The estimated wind gust of 48 knots is equivalent to 55 mph. Wilson County 2 W Lebanon Arpt 27 1245CST 1247CST 0 0 0.00K 0.00K Hail (1.00)

Trained spotter reported quarter size hail at the intersection of Interstate 40 and Interstate 840 in Wilson County.

Instability brought by daytime heating allowed thunderstorms to fire up during the afternoon of April 27th. A few of the storms became strong to briefly severe.

TENNESSEE, East Marion County Jasper 24 1735CST 1745CST 0 0 10.00K 0.00K Thunderstorm Wind (60EG)

Law enforcement personnel reported several trees downed by thunderstorm winds in Jasper.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Sequatchie County Dunlap 24 1740CST 1745CST 0 0 2.00K 0.00K Thunderstorm Wind (55EG)

Law enforcement personnel reported one tree downed by thunderstorm winds in Dunlap.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Marion County Jasper 24 2210CST 2220CST 0 0 10.00K 0.00K Thunderstorm Wind (55EG)

Law enforcement personnel reported several trees downed by thunderstorm winds in the Jasper area.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Meigs County 1 NE Decatur 25 0020EST 0030EST 0 0 15.00K 0.00K Thunderstorm Wind (60EG)

Law enforcement personnel reported several trees and powerlines downed by thunderstorm winds in the Decatur area.

Note: The estimated wind gust of 60 knots is equivalent to 69 mph.

298 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, East Mcminn County 2 NNW Fiketon 25 0030EST 0032EST 0 0 0.00K 0.00K Thunderstorm Wind (73MG)

The Pone Knob ETOS tower reported a measured wind gust at 73 knots (84 mph).

Note: The measured wind gust of 73 knots is equivalent to 84 mph. Mcminn County Athens 25 0030EST 0040EST 0 0 20.00K 0.00K Thunderstorm Wind (60MG)

The Daily Post-Athenian newspaper reported several trees and powerlines downed by thunderstorms winds across the county. Around 2000 homes lost power. Note: The measured wind gust of 60 knots is equivalent to 69 mph. Monroe County 3 WSW Vonore 25 0050EST 0100EST 0 0 100.00K 0.00K Thunderstorm Wind (65EG)

The emergency manager reported a barn was destroyed and a roof blown off a house at the intersection of Lakeside Road and Kincaid Road southwest of Vonore. Several other homes and businesses were also damaged in the area.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Monroe County 2 WSW Vonore 25 0050EST 0055EST 5 50 0 0 25.00K 0.00K Tornado (EF0)

The NWS storm survey determined a tornado developed near the Hugh Storage Facility 2 miles west southwest Vonore, It was classified as an EF0 tornado with winds estimated at 80 mph and a path width of 50 yards. The tornado produced damage near the Pro-Tex plant.

Loudon County 1 SW Greenback 25 0055EST 0105EST 0 0 120.00K 0.00K Thunderstorm Wind (70EG)

The Daily Times newspaper in Maryville reported a home was destroyed and several trees and powerlines downed by thunderstorm winds near Greenback. Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Loudon County 1 S Greenback 25 0055EST 0104EST 8 100 0 0 30.00K 0.00K Tornado (EF1)

The NWS storm survey determined the tornado entered from Monroe County tracked across extreme southern Loudon County then continued east into Blount County. It was classified as an EF1 tornado with winds estimated at 100 mph and a path width of 100 yards. The tornado snapped around 20 trees in extreme southern Loudon County near Greenback.

Blount County 2 W Lanier 25 0103EST 0115EST 0 0 10.00K 0.00K Thunderstorm Wind (65EG)

Amateur radio personnel reported a roof was blown off a house on Thompson Bridge Road just across the county line from Greenback. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Blount County 1 WSW Lanier 25 0104EST 0110EST 0 0 120.00K 0.00K Thunderstorm Wind (65EG)

Law enforcement personnel reported a home destroyed and several trees downed by thunderstorm winds on Cannon Road.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph.

299 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, East Blount County 2 W Lanier 25 0104EST 0109EST 1 100 0 0 20.00K 0.00K Tornado (EF2)

The NWS storm survey determined a tornado tracked from Loudon County for one-half of a mile along Thompson Bridge road. It was classified as an EF2 tornado with winds estimated at 110 mph with a path width of 100 yards.

EF-2 tornado damage along Cannon Road, Blount County, Tennessee. Photo by Tim Troutman, National Weather Service, Morristown, TN. Polk County Ducktown 25 0105EST 0115EST 0 0 20.00K 0.00K Thunderstorm Wind (60EG)

Law enforcement personnel reported several trees downed by thunderstorm winds in the southeast part of the county from Isabella to Ducktown to Farner. Note: The estimated wind gust of 60 knots is equivalent to 69 mph. Polk County 3 WNW Postelle 25 0105EST 0112EST 1.24 30 0 0 20.00K 0.00K Tornado (EF0)

A tornado briefly touched down just southwest of highway 64 just west of Ducktown and continued northeast before quickly dissipating. The tornado snapped and twisted 10 trees in its path with 70 mph winds before dissipating.

A strong low pressure system along with an associated cold front tracked across the area triggering thunderstorms during the evening and overnight hours. A tornado touched down in eastern Monroe County, then tracked across southern Loudon County and finally dissipated in western Blount County. Another weak tornado touched down briefly in Polk County.

TENNESSEE, West Weakley County 2 SW Hillside 07 1835CST 3 SW Dresden 1903CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked down several tree limbs at two residences northwest of Sharon. In addition, trees were knocked down on Travis Chapel Road, southwest of Dresden. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Shelby County 1 SE Arlington 07 1910CST 1915CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds blew a large tree down on a house on Brown Street in Arlington.

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

300 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, West Shelby County 1 SE Shelby Farms 07 1920CST Bartlett 2115CST 0 0 0.00K 0.00K Flash Flood

Heavy rain produced flash flooding in the Bartlett-East Memphis area. Interstate 240 at Walnut Grove was flooded. In addition, Walnut Grove at Farm Road was flooded. Flooding also occurred at Mullins Station Road and Sycamore View.

Carroll County 1 NW Howley 07 2030CST Hollow Rock 2050CST 0 0 0.00K Thunderstorm Wind (52EG)

Straight line winds blew several large tree limbs down southwest of Leach. Winds were estimated at 60 mph when the storm moved through Hollow Rock. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Carroll County 1 NNE Hollow Rock 07 2045CST 2050CST 0 0 0.00K Hail (1.00)

Chester County 3 NW Jacks Creek 07 2110CST 2120CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds blew trees down near Glendale. Several trees fell onto roads some of which were Glendale Road, Clarks Creek Road and Jones Road. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Henderson County 1 N Lexington 07 2120CST 2135CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked trees down in and around Lexington.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Decatur County 1 NE Beacon 07 2130CST 2132CST 0 0 0.00K 0.00K Thunderstorm Wind (50MG)

Winds were measured at 58 mph just west of Parsons. A cold front moved through the Mid-South during the afternoon and evening hours of April 7th, 2010. Showers and thunderstorms developed out ahead of the front. Some storms became severe producing large hail, damaging winds, and flash flooding. Note: The measured wind gust of 50 knots is equivalent to 58 mph. Shelby County 3 SW Germantown 24 0709CST 0714CST 0 0 0.00K Hail (1.25)

Quarter to half dollar size hail fell in Hickory Hill. Shelby County 2 SW Cordova 24 0711CST 0729CST 0 0 0.00K Hail (1.75)

Quarter to golf ball size hail fell in the Cordova area. Golf ball size hail was reported at the National Weather Service Office.

Fayette County 1 ESE Piperton 24 0720CST 0725CST 0 0 0.00K Hail (1.75)

Penny to golf ball size hail fell in Piperton.

301 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, West Shelby County 1 N Germantown 24 0720CST 1 NNW Forest Hill 0728CST 0 0 0.00K Hail (1.75)

Nickel to golf ball size hail fell in the Germantown area. Shelby County 1 NNW Piper 24 0721CST 2 NNE Collierville 0735CST 0 0 0.00K Hail (1.75)

Quarter to golf ball size hail fell in the Collierville area.

Shelby County 1 ESE Arlington 24 0730CST 0735CST 0 0 0.00K Hail (1.75)

Golf ball size hail fell in Arlington. Mcnairy County 1 W Mc Nairy 24 0850CST 0855CST 0 0 0.00K Thunderstorm Wind (61EG)

Straight line winds knocked down trees just west of McNairy.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Chester County 4 S Jacks Creek 24 0904CST 0909CST 0 0 10.00K 0.00K Thunderstorm Wind (50EG)

Straight line winds blew a roof off of a mobile home in Sweet Lips.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Shelby County 1 ENE Aulon 24 1210CST 1400CST 0 0 0.00K 0.00K Flash Flood

Heavy rain produced flash flooding in the Midtown to East Memphis area. The viaduct at Union Avenue and Poplar Avenue was flooded as well as Poplar Avenue near the intersection of Highland Street.

Shelby County (MEM)Memphis Intl Ar 24 1210CST 1400CST 0 0 0.00K 0.00K Flash Flood

Heavy rain produced flash flooding near Memphis International Airport. Water depth reached the wheel wells of several cars at the intersection of Winchester Road and Plough Road. One person was injured when their vehicle hydroplaned into a power pole.

Shelby County 2 SSW Shelby Farms 24 1210CST 0 0 5.00K 0.00K Lightning

Lightning struck a detached garage on Boswell Road near Summer Avenue near Memphis. The garage caught fire as a result.

Shelby County 1 W Raleigh 24 1210CST 1 NNW Berclair 1220CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked trees and power lines down in the Berclair and Raleigh areas. A tree was knocked down onto a vehicle at the intersection of North Graham Street and Macon Road. In addition, a large tree fell onto a house on Victor Drive. A tree knocked down power lines on Jewell Road. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

302 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, West Shelby County Memphis 24 1210CST 1 W Binghamton 1215CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked down numerous trees in Midtown Memphis. Several of these trees fell near the intersection of Hawthorne Street and Galloway Avenue. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Shelby County 1 E Ellendale 24 1225CST 1 ESE Arlington 1242CST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Straight line winds produced damage between Ellendale and Arlington. Limbs with the diameter of a baseball were knocked down at the intersection of Summer Avenue and Appling Road. A tree was uprooted and a greenhouse structure was destroyed in Arlington. Power poles were knocked down in Arlington as well.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Tipton County 1 ESE Mason 24 1242CST 1247CST 0 0 0.00K Hail (1.50)

Shelby County 2 ESE Shelby Center 24 1243CST 2 NNW Cordova 1400CST 0 0 0.00K 0.00K Flash Flood

Heavy rain produced flash flooding near Cordova. Streets inside the Countrywood Subdivision were flooded. Dexter Road was covered with 6-8 inches of water between Appling Road and Germantown Parkway.

Shelby County 2 NE Germantown 24 1245CST 1400CST 0 0 0.00K 0.00K Flash Flood

Heavy rain produced flash flooding near Germantown. Southbound Kimbrough Road between Wolf River Boulevard and Farmington Boulevard was flooded with 1 foot of water. Farmington Boulevard near Germantown Road was flooded with water higher than the curb.

Lauderdale County 3 E Orysa 24 1245CST 1250CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked down trees near the Lauderdale-Haywood County line, east of Henning. Significant property damage occurred to homes in the area from fallen trees. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Tipton County Mason 24 1250CST 2 S Gailor 1255CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked down power lines on Highway 59 near Highway 70.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Shelby County Arlington Muni Arpt 24 1325CST 1400CST 0 0 0.00K 0.00K Flash Flood

Heavy rain produced flash flooding near Arlington. Hayes Road was covered with 6-8 inches as a result.

Gibson County Humboldt 24 1330CST 1 WNW Medina 1340CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds blew a roof off of a car dealership in Humboldt. Several trees were knocked down in the area as well.

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

303 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, West Weakley County 1 SE Dresden 24 1338CST 4 NNW Mc Kenzie 1342CST 0 0 20.00K 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked down 20 trees across Weakley County stretching from Dresden to the Henry/Carroll County line.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Carroll County Mc Kenzie 24 1400CST 1410CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked down trees in McKenzie. Several trees fell onto homes causing structural damage. Power lines were also knocked down in the area. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Henry County 1 W Paris 24 1400CST 1405CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked down trees in Paris. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Henry County Cottage Grove 24 1405CST 4 NW Puryear 1410CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked down trees and power poles near Cottage Grove and Puryear.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Gibson County 1 ENE Hughes Loop 24 1417CST 1422CST 0 0 0.00K Hail (1.75)

Golf ball size hail fell between Cades and Milan. Gibson County Milan 24 1420CST 1 SW Ledbetter 1425CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked down several trees in Milan. A couple of trees fell onto a vehicle and a house causing damage.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Carroll County 1 SSE Trezevant 24 1425CST 2 ENE Huntingdon 1450CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked down trees across Highway 70 in Huntingdon. Additional trees and power lines were knocked down near Trezevant, Atwood, Hollow Rock and Westport. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Chester County 2 ENE Henderson 24 1440CST 3 SSW Mifflin 1513CST 0 0 0.00K Hail (4.50)

Quarter to softball size hail fell in the Henderson area. Chester County 2 ENE Henderson 24 1508CST 2 WSW Jacks Creek 1513CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds knocked down trees on Highway 100 east of Henderson.

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

304 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, West Henderson County 1 W Wildersville 24 1510CST 1515CST 0 0 0.00K Hail (0.75)

Penny size hail fell in Parker's Crossroads. Henderson County Lexington 24 1510CST New Safford 1525CST 0 0 0.00K Thunderstorm Wind (50EG)

Straight line winds produced widespread tree damage across Henderson County.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Henderson County 3 E Lexington 24 1515CST 2 ESE Law 1615CST 0 0 0.00K 0.00K Flash Flood

Heavy rain flooded a low water crossing 3 miles east of Lexington. A subdivision road and several yards were flooded as a result. Henry County 1 E India 24 1515CST 1615CST 0 0 10.00K 0.00K Flash Flood

Heavy rain produced flash flooding northeast of Paris. A culvert was washed out on Somerset Drive as a result.

Henderson County 5 S Lexington 24 1515CST 1525CST 0 0 0.00K 0.00K Hail (1.75)

Quarter to golf ball size hail fell east and south of Lexington including the Pine Lake area.

Decatur County 1 SSW Bible Hill 24 1526CST 5 ESE Bowmans 1540CST 11.79 400 0 0 1.00M 0.00K Tornado (EF1)

A tornado touched down on Bible Hill Road, approximately 2 miles north-northwest of Parsons. The tornado traveled east- northeast for about 11 miles crossing the Tennessee River and continuing into Perry County, Tennessee. Significant tree damage occurred along the track, especially on Brodie's Landing Road. Although minor damage occurred to most structures hit directly from the tornado, significant property damage occurred from falling trees. In total, 15 homes sustained damage. Three of these homes were completely destroyed. Seven homes received major damage while five had minor damage. One business had a roof blown off while one barn was completely destroyed.

A warm front lifted north across the Mid-South during the afternoon and evening hours of April 23rd, 2010. Behind the warm front, warm moist air from the Gulf of Mexico made for a very unstable atmosphere. Numerous showers and thunderstorms developed across Eastern Arkansas and North Mississippi during the evening hours of April 23rd. Some storms became severe producing damaging winds and flash flooding. These storms pushed out of the area by the early morning hours of April 24th, 2010 as a strong low pressure developed across the Southern Plains and pushed east with an associated cold front. Additional showers and thunderstorms developed ahead of the low pressure system and cold front during the day on April 24th. Numerous storms became severe producing large hail, damaging winds, flash flooding and tornadoes. The storms moved out of the area by the mid-evening hours.

305 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TENNESSEE, West

Hunting cabin destroyed from the April 24th, 2010 EF-1 Decatur County tornado. Photo taken by Joseph Lowery. Hardin County 2 NNW Counce 30 2000CST 2005CST 0 0 0.00K Hail (1.00)

Quarter size hail fell 2 miles west of Pickwick Dam. An upper level disturbance slowly approached the Mid-South during the evening of April 30th, 2010 as a cold front became stationary to the west. This pattern remained in place through the evening hours of May 2nd, 2010. South to southwest winds pumped warm moist air from the Gulf of Mexico and created a very unstable atmosphere. Showers and thunderstorms developed in association with the front during the early evening hours and moved east into Eastern Arkansas shortly before midnight. Additional thunderstorms occurred in association with the upper level disturbance. Due to the unstable atmosphere, thunderstorms quickly became severe producing large hail, damaging winds, and flash flooding. The severe weather evolved into an outbreak by May 1st and 2nd. Historic rainfall and flash flooding in addition to large hail and damaging winds occurred during the early morning hours of May 1st with several tornadoes occurring during the afternoon hours of May 1st to early morning hours of May 2nd.

TEXAS, Central Throckmorton County Throckmorton 17 0710CST 1000CST 0 0 0.00K 0.00K Flash Flood

City officials reported flooding along with some road closures around Throckmorton.

Heavy rains fell across Throckmorton during the night with up to 5.75 inches reported by a rainfall observer and this led to flash flooding across the city.

Coleman County 1 N Rockwood 23 1920CST 0 0 0.00K 0.00K Hail (0.75)

Mothball size hail was reported in southern Coleman County. An isolated storm produced hail below the one inch criteria across southern Coleman County.

TEXAS, Central Southeast Walker County 1 ENE Huntsville 07 1557CST 0 0 0.00K Hail (0.75)

Dime to penny sized hail was observed in downtown Huntsville.

306 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Central Southeast Brazos County 1 S Bryan 07 1655CST 0 0 0.00K Hail (0.75)

Penny sized hail was observed over the south side of Bryan. Brazos County 2 SSE Bryan 07 1658CST 0 0 0.00K Hail (0.75)

Penny sized hail was observed in the Bryan College Station city line area.

Washington County 1 WSW Sandy Hill 07 1717CST 0 0 0.00K Hail (0.75)

Penny sized hail was observed on FM 50. Walker County 2 ESE Riverside 07 1718CST 0 0 0.00K Hail (0.75)

Penny sized hail was observed on the northwest end of Lake Livingston.

Washington County 1 W Brenham Muni Arpt 07 1721CST 0 0 1.00K 0.00K Hail (1.00)

Quarter sized hail was observed on the north side of Brenham.

Montgomery County 2 N Willis 07 1850CST 0 0 1.00K 0.00K Hail (1.00)

Quarter sized hail was observed on the north side of Willis.

Montgomery County 2 WSW Shenandoah 07 1950CST 0 0 0.00K Hail (0.88)

Penny to nickel sized hail was observed near the Panther Creek and Cochrans Crossing area.

Some severe hail producing thunderstorms developed along and ahead of a cold front.

Houston County 5 WNW Latexo 23 1845CST 0 0 0.00K 0.00K Hail (0.88)

Nickel sized hail was observed in this thunderstorm. Houston County 1 N Latexo 23 1850CST 0 0 0.00K 0.00K Funnel Cloud

A rotating wall cloud and a funnel cloud were sighted by multiple trained spotters.

Houston County 3 SE Augusta 23 1930CST 0 0 0.00K 0.00K Hail (0.88)

Nickel sized hail was observed in this thunderstorm. Severe thunderstorms developed along and ahead of a cold front as it moved eastward across the area.

TXZ238 Galveston 24 0055CST 0100CST 0 0 20.0K 0.00K High Wind

A low pressure system combined with a gravity wave disturbance to produce a period of strong winds mainly along the coast. The winds did damage to some homes.

307 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Central Southeast Burleson County 3 WNW Caldwell Muni Arpt 26 1845CST 0 0 5.00K 0.00K Hail (1.75)

A severe thunderstorm produced golf ball sized hail. Burleson County 1 N Caldwell Muni Arpt 26 1910CST 0 0 25.00K 0.00K Thunderstorm Wind (55EG)

A severe thunderstorm downed numerous trees and power lines across the county.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Washington County 1 S Long Pt 26 1915CST 0 0 2.00K 0.00K Hail (1.00)

A severe thunderstorm produced quarter sized hail. Washington County 1 S Brenham 26 2023CST 0 0 0.00K 0.00K Thunderstorm Wind (58EG)

The wind gust was measured by the Brenham ASOS. Severe thunderstorms developed along a slow southward sagging cold front and generated some hail and wind damage. Note: The estimated wind gust of 58 knots is equivalent to 67 mph.

TEXAS, Extreme West

TXZ055 El Paso 01 1100MST 2000MST 0 0 0.00K 0.00K High Wind

A strong Pacific trough moving into the desert southwest brought a cold front through the region with wind gusts up to 73 mph reported in El Paso. El Paso County 6 ENE Socorro 12 1455MST 1500MST 0 0 0.00K 0.00K Hail (1.75)

Golf ball size hail was reported in Horizon City by the Department of Public Safety.

An embedded impulse in southwesterly flow aloft triggered a severe thunderstorm along a dryline in El Paso County.

El Paso County 3 S Isla 14 1430MST 2 NNW Tornillo 1600MST 0 0 30.00K 0.00K Flash Flood

El Paso County Sheriff reported flooding in several homes and along many streets in Tornillo. Up to two inches of rain was reported in the town of Tornillo. El Paso County 1 W Tornillo 14 1430MST 1435MST 0 0 0.00K 0.00K Hail (1.00)

A report was received of up to one inch diameter hail in Tornillo.

Hudspeth County 2 ENE Acala 14 1508MST 1515MST 0 0 0.00K 0.00K Hail (0.75)

Three-quarter inch hail was reported at I-10 and Acala Rd. An upper level trough in weak southwesterly flow aloft combined with a dryline over the El Paso area resulting in training severe thunderstorms over far southeastern El Paso county.

TXZ055 El Paso 22 1600MST 2000MST 0 0 0.00K 0.00K High Wind

308 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Extreme West

A deep upper low over the Las Vegas area helped to bring a strong cold front through the region with gusty westerly winds behind it. 29 1200MST 2000MST 0 0 2.0K 0.00K High Wind

A deep upper low moving across the Rockies had a 130 knot jet streak moving around the base of it into southern New Mexico. A strong surface low deepened over the Oklahoma panhandle with winds ahead of a strong cold front gusting up to 74 MPH.

TEXAS, Mid-South Jim Wells County 3 WNW Premont 12 0930CST 1145CST 0 0 0.00K 0.00K Flash Flood

Water was reported flowing into the City Hall in Premont. Portions of FM 716 and CR 428, just west of Premont, were impassable due to high water. Several city streets in Premont were also flooded.

Low to mid level easterly flow developed over South Texas April 11-12 and began drawing deep moisture into the region. A subtropical jet stream extended across the Pacific and over Mexico leaving South Texas in diffluent wind flow aloft. A complex of thunderstorms developed across southern Jim Wells and western Kleberg counties, along an outflow boundary from earlier convection across the Brush Country and Rio Grande Plains. Between 2-5 inches of rain fell quickly during the morning hours of April 12th, producing flash flooding in near Premont.

Duval County 2 S Freer 15 1800CST 0 0 50.00K 0.00K Lightning

Lightning struck an oil storage facility, causing an explosion and fire, along highway 16 just south of Freer.

Duval County 15 NW Realitos 15 1804CST 8 WNW Crestonia 2045CST 0 0 0.00K 0.00K Flash Flood

Several spots along HWY 16, between Freer and Hebbronville, were flooded, including 3 feet of flowing water over HWY 16 roughly 18 miles south of Freer. Highway 16 was closed for much of the night. In addition, flooding was reported along FM 2295, between Benavides and HWY 16, and it was also closed.

Large scale lift, associated with the approach of an upper level trough , and deep easterly low to mid level convergence produced an area of strong showers and thunderstorms across most of Duval County during the late afternoon and evening of the 15th Thursday afternoon. Rainfall estimates over Duval County ranged from 3 to 6 inches, and flash flooding was reported in much of the southern half of the county. A mid level circulation from the Duval County storms drifted northward Thursday night and redeveloped strong showers and thunderstorms further north into McMullen County.

Mcmullen County 11 N Tilden 16 0120CST 0945CST 0 0 100.00K 0.00K Flash Flood

Thunderstorms with very heavy rainfall trained for much of the night across northern McMullen county, dumping up to 10-15 inches of rainfall and producing widespread flash flooding. Highways 16, 72, and 99 were all closed near Tilden due to flooded roads. A portion of FM 3445 was washed out and a vehicle swept into the high water. A successful high water rescue was performed.

Live Oak County 4 NW Three Rivers 16 0325CST 3 ENE Simmons 0730CST 0 0 20.00K 0.00K Flash Flood

Slow moving thunderstorms through much of the night produced widespread flash flooding in and around Three Rivers. Between 8 and 12 inches of rain fell. Many city streets were flooded in Three Rivers, with as much as 2-3 feet of water stranding motorists. Eight homes were flooded on Hwy 72 in town. East and west bound lanes of Hwy 72 at I-37 were flooded and impassable. Schools were closed in Three Rivers for the day.

309 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Mid-South Bee County 3 SSW Mineral 16 0600CST 5 NNE Poesta 0930CST 0 0 0.00K 0.00K Flash Flood

Heavy rainfall produced flash flooding of roadways in and around Beeville. FM 799 just east of La Para Rd. had 1-2 feet of flowing water over the road. U.S. 181 Business north of Beeville also had flowing water over the road. Many low-lying city streets were closed in Beeville due to flooding.

Live Oak County 5 S Karon 16 0845CST 4 W La Para 0930CST 0 0 0.00K 0.00K Flash Flood

FM 1596 closed between CR 311 and 332 due to flash flooding of Gamble Gully Creek.

Live Oak County 2 NNW Lagarteo 16 1220CST 1345CST 0 0 0.00K 0.00K Flash Flood

Heavy rain produced flash flooding of several County and Farm to Market Roads near Lagarto. Six inches of flowing water was reported covering CR 175, FM 534, and FM 3162. Duval County 4 WNW Concepcion 16 1255CST 2300CST 0 0 50.00K 0.00K Flood

Excess runoff from heavy rainfall the day before led to flooding of Macho Creek near Realitos. Also, the Agua Pocquita Creek flooded, forcing the closure of FM 2295, between Benavides and Highway 16. One resident had to be rescued by helicopter from a racnh home on FM 2295. Many residents were evacuated from there homes in and around Realitos. Several rural homes were reported flooded. Damage estimated are very rough.

Jim Wells County 3 WNW Orange Grove 16 1305CST 1930CST 0 0 100.00K 0.00K Flash Flood

Torrential rainfall of 4-8 inches fell led to widespread flash flooding in northern and northwest Jim Wells county. In particular, A flood wave developed on the Agua Dulce Creek, west of Orange Grove, and traveled downstream through Jim Wells County and into Nueces county. Several County Roads became impassable along the creek. One vehicle was swept into the creek near CR 239 and CR 308, with all three passengers rescued by a Coast Guard helicopter. Another resident who was trapped in their home was rescued by a Coast Guard helicopter. The flood wave destroyed one mobile home in Jim Wells county. In addition flooding of roadways occurred in Orange Grove, and several homes were reported to have water in them. FM 624 was closed in Orange Grove due to 1 foot of flowing water over the road. Also water was reported over CR 307, northwest of Orange Grove, making it impassable. WATER COVERING COUNTY ROAD 307 NORTHWEST OF ORANGE GROVE. THE ROAD IS BECOMING IMPASSIBLE.

Jim Wells County 3 S Dillworth 16 1312CST 1845CST 0 0 0.00K 0.00K Flash Flood

Water was flowing over CR 226 near Agua Dulce Creek. Live Oak County 2 SSW Lagarteo 16 1315CST 1345CST 0 0 0.00K 0.00K Flash Flood

Heavy rainfall led to FM 534 being flooded in several spots with several inches of moving water, near the Arrowhead community. Jim Wells County 1 S Midway 16 1415CST 1845CST 0 0 0.00K 0.00K Flash Flood

U.S. 281 was closed from FM 624 to 1 mile north of that location due to water flowing over the roadway.

310 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Mid-South Bee County 5 SE Papalote 16 1525CST 5 SE Tynan 1745CST 0 0 0.00K 0.00K Flash Flood

Between 4 and 7 inches of rain fell producing widespread flash flooding in the Skidmore and Tynan areas. Flowing water was over the road at the intersection of Hwy 181 and Hwy 359 in Skidmore. Water was also over the road at Hwy 359, between Skidmore and Tynan. Water was flowing over Hwy 181, between Skidmore and Papalote, where some motorists were stranded with water up to the doors on vehicles. FM 796 was closed from FM 359 in Tynan to US 59 due to high water. One high water rescue was performed on FM 796. Water was also reported flowing over the road on Hudson Marshall Rd., 2 miles north of Skidmore.

Victoria County 2 SE Victoria 16 1600CST 3 E Aloe 1730CST 0 0 0.00K 0.00K Flash Flood

Several inches of flowing water was reported at a low water crossing on Briggs Blvd. Minor flooding of roadways was reported elsewhere through the city. Nueces County 2 NNE Rabb 16 1645CST 1930CST 0 0 0.00K 0.00K Flash Flood

Water was reported flowing of CR 44, just west of Robstown. The flowing water was up to a foot deep in some areas.

San Patricio County 4 SW St Paul 16 1825CST 1930CST 0 0 0.00K 0.00K Flash Flood

Flowing water was reported across FM 188 and FM 630, near the CR 35 intersections.

A mid level circulation from the Duval County storms drifted northward into McMullen county late on the evening of the 15th, and through the morning hours of the 16th, redeveloping strong showers and thunderstorms. This circulation embedded in the mean upper level trough axis which had shifted over central South Texas fed on a moist and unstable air mass (1.6 inches precipitable water and 2000 J/KG surface-based CAPE) supplied by the persist low level easterly flow. A complex of thunderstorms centered over Choke Canyon produce torrential rains overnight and significant flash flooding from Tilden to Three Rivers to Oakville. Radar estimated as much as 12 inches of rain fell on the west side of Choke Canyon Reservoir and an observer in Cross reported 7 inches. Flooding was extensive to the areas around the Reservoir and the water level rose 2.5 feet by midday Friday. The thunderstorms shifted east of I-37 Friday morning and brought very heavy rain into Bee County. The rich moist air mass remained in placed and the upper level trough extension shifted into the Coastal Plains by Friday afternoon. This resulted in a weaker sea breeze and a focus of low level convergence along highway 281 and eastward. Local areas of intense thunderstorms developed Friday afternoon from Orange Grove to Sinton and northeast to the Victoria Crossroads region. This area of thunderstorms was very slow moving and produced embedded mid level circulations within the weak but diffluent wind flow aloft. Torrential rainfall totals of 4 to 8 inches occurred leading to widespread areal and flash flooding in Orange Grove and Agua Dulce and localized flooding into the northern Coastal Bend. Rainfall was so intense that runoff closed many roads, flooded numerous homes, surrounded some homes with a foot or slightly more of standing water, and turned normally dry creeks and drainage canals into ragging torrents. At least one water rescue was performed when a vehicle was swept into deep water. The precipitation diminished quickly Friday evening as it moved into the Coastal Bend and the associated upper level trough extension shifted over the West Gulf.

Mcmullen County 2 SE Calliham 17 0750CST 0945CST 0 0 0.00K 0.00K Flash Flood

Flowing water was reported over Hwy 72 at Park Road 8, south of Calliham, and also along Hwy 72 near the prison entrance.

Live Oak County 4 NNW Simmons 17 1334CST 1530CST 0 0 0.00K 0.00K Flash Flood

Flowing water once again covering the road at Hwy 72 near the prison.

311 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Mid-South Nueces County 4 SW Palo Alto 17 1439CST 0 0 0.00K 0.00K Funnel Cloud

A rotating wall cloud produced a short lived funnel cloud near FM 665 and FM 666.

Nueces County 6 S Agua Dulce 17 1458CST 0 0 0.00K 0.00K Hail (0.88)

Pea to nickle sized hail fell at the intersection of FM 70 and FM 665.

Nueces County 3 NW La Rose 17 1500CST 1530CST 0 0 0.00K 0.00K Flash Flood

CoCoRaHS observer reported 2.73 inches of rain fell in only 45 minutes. Water was reported flowing over the road at FM 666 and FM 3088. Nueces County 9 WSW Palo Alto 17 1509CST 0 0 0.00K 0.00K Funnel Cloud

Spotter reported a wall clouds and funnel cloud 10 miles northwest of Bishop.

Kleberg County 4 ESE Kingsville Arpt 17 1615CST 1616CST 0.51 50 0 0 5.00K 0.00K Tornado (EF0)

A trained spotter reported a tornado touched down on the King Ranch, south of Hwy 141 and roughly 4 miles west of the main entrance to the ranch. The tornado was on the ground for roughly 1/2 mile as it moved south, producing EF-0 damage. Minor damage of roofing tin along with twisted mesquite trees were reported by the King Ranch. Winds were estimated between 70 and 80 mph.

Jim Wells County 2 WSW (ALI)Alice Intl Arpt 17 1630CST 3 NE Ben Bolt 1730CST 0 0 0.00K 0.00K Flash Flood

FM 1930 flooded in 3 places, with up to 1 foot of water flowing over the road.

On the heals of the Friday April 16th system, another upper trough approached the Rio Grande Valley Friday night within a stronger wind flow aloft. Moisture levels were slightly lower early Saturday but the large scale lift with the approaching disturbance and cooler air aloft allowed for showers to develop after midnight Friday night across interior sections of South Texas. The rain became locally heavy, again, on the west side of Choke Canyon Reservoir. Localized rainfall amounts of 3 to 6 inches occurred bringing 2 day totals of 12 to 18 inches. Partial sunshine allowed for sufficient heating across the Coastal Bend on the morning of the 17th and low level speed convergence was present early in the morning. Instability values peaked on Saturday with surface-based CAPE of 2500 to 3000 J/KG. A weak surface boundary reflection of the upper level trough axis entered the Coastal Plains by early afternoon and thunderstorms became numerous. At the same time a weak sea breeze shifted slightly inland over the western portions of Kleberg and Nueces Counties. Increased upper level winds shifted from west to northwest with the arrival of a stronger upper level trough helped organize the thunderstorms which had developed in the very unstable air mass. By mid afternoon, a line of thunderstorms slowly moved through Jim Wells and Kleberg Counties producing a quick 2 to 5 inches of rain, significant cloud to ground lightning, and a weak EF-0 tornado on the King Ranch. The heavy rain resulted in additional flooding to parts of Jim Wells County which had already received significant rainfall during the week.

Nueces County 1 ESE Banquete 18 0800CST 2000CST 0 0 20.00K 0.00K Flood

A flood wave from previous rainfall on the 16th and 17th, continued down Banquette Creek. A driver tried to cross the flooded roadway at the creek near CR 38 and CR 83 and lost control of the vehicle. All four passengers were able to abandon the vehicle to safety. The flash flood that began on Agua Dulce Creek in Jim Wells county on the 16th, continued down as a flood wave into Banquette Creek on the 18th, and into Petronilla Creek on the 19th.

312 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Mid-South Calhoun County 5 ENE Heyser 18 1804CST 1806CST 0 0 0.00K 0.00K Funnel Cloud

Several reports of multiple funnel clouds were received west of Port Lavaca, near the Green Lake area.

Drier air and offshore flow spread across South Texas into the morning of the 18th pushing all the showers and thunderstorms into the West Gulf of Mexico. However, a weak sea breeze developed on the afternoon of the 18th, leading to low level speed convergence on the immediate coast. Moisture and instability was still sufficient and some showers developed on the coast and funnel clouds observed near Port Lavaca.

Nueces County 2 N Palo Alto 19 1200CST 20 0000CST 0 0 0.00K 0.00K Flood

A flood wave resulting from heavy rain on the 16th and 17th impacted Petronilla Creek. FM 2826 was closed between FM 666 and U.S. 77 due to flooding along the creek. The flash flood that began on Agua Dulce Creek in Jim Wells county on the 16th, continued down as a flood wave into Banquette Creek on the 18th, and into Petronilla Creek on the 19th.

TXZ243 Nueces 22 2335CST 23 0000CST 0 0 0.00K 0.00K High Wind

Precipitation, from a decaying and elevated shower over Corpus Christi, fell through a strong low-level jet beneath the cap, and induced a small-scale wake low. Winds briefly gusted between 60 and 70 mph, localized to just the central and south side of Corpus Christi.

TEXAS, North Hood County 2 NNE Cresson 17 1200CST 3 NNW Lipan 1730CST 0 0 1.00K 0.00K Flood

The county sheriff reported that 23 barricades were set up on various roads around the county due to flooding from persistent steady rainfall across the county. At one intesection in Acton the water was 8-10 inches deep. Rainfall totals averaged 3-3.5 across the county but were reported as high as 5 inches in the northern portions of the county. Most of the water had receded within a few hours. Some damage to the road surface on Paluxy Highway near Neri Road occurred.

Parker County 2 SW Springtown Kezer Arp 17 1631CST 2 ESE Springtown 1900CST 0 0 0.00K 0.00K Flash Flood

Water was flowing over Smith Road at least 6 inches deep and rising.

Young County 3 NE Markley 17 1900CST 11 ESE Bunger 19 0700CST 0 0 200.00K 0.00K Flood

Rainfall totals over 6 over the weekend resulted in Lake Graham overflowing its banks and flooding the nearby land. Also, flooding along the Brazos River backed up into area creeks and streams resulting in widespread flooding around the county. A high water rescue of three teenagers was performed on April 18th around 4 pm CDT when rising flood waters pushed their car off Power Plant Road in Graham. Another vehicle nearly got stuck in this same area. Rising waters also flooded Graham Bible Church where several inches of water was found inside the building, and the water in the parking lot was almost waist deep. Fireman's Park in Graham was under water. Several major roadways were closed on the 18th due to high water: HWY 380 West at Elm Creek, HWY 61 near Spivey Hill, HWY 16 north at the Archer Co line, and HWY 578. All roads were re-opened by the morning of the 19th.

A slow moving upper level system combined with a surface front resulted in a two-day period of moderate to heavy rain across parts of north Texas. The persistent rainfall resulted in some flooding problems; most notably on lakes, rivers, creeks, and streams in Young and Palo Pinto County.

313 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Bell County Temple 23 1640CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported in south Temple. Milam County 5 N Cameron 23 1645CST 0 0 4.00K 0.00K Hail (4.00)

Grapefruit size hail was reported 5 miles north of Cameron. Milam County Splawn 23 1648CST 0 0 4.00K 0.00K Hail (2.50)

Tennis Ball size hail was reported at FM 485 and US 77, approximately 4 miles north of Cameron.

Bell County 4 NNE Troy 23 1705CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported 4 miles north of Troy. Robertson County 1 W Franklin 23 1731CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported 1 mile west of Franklin. Leon County 4 W Leona 23 1830CST 0 0 0.00K 0.00K Hail (1.50)

Half Dollar size hail was reported 4 miles west of Leona. Anderson County 1 ESE Palestine Arpt 23 1840CST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail was reported by the VFD at CR 425 and FM 320, west of Palestine.

Lampasas County Kempner 23 2225CST 0 0 5.00K 0.00K Hail (1.75)

Golfball size hail was reported in Kempner. Lampasas County Kempner 23 2225CST 0 0 2.00K 0.00K Thunderstorm Wind (52EG)

Sixty MPH winds were estimated in Kempner. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Coryell County Copperas Cove 23 2226CST 0 0 5.00K 0.00K Thunderstorm Wind (52MG)

A 60 MPH wind gust was measured in Copperas Cove. A local newspaper reported some property damage was reported in Copperas Cove, but no other information was given. Note: The measured wind gust of 52 knots is equivalent to 60 mph. Coryell County 1 E Copperas Cove 23 2229CST 0 0 2.00K 0.00K Thunderstorm Wind (58MG)

A 67 MPH wind gust was measured just east of Copperas Cove. Note: The measured wind gust of 58 knots is equivalent to 67 mph. Coryell County Ater 23 2230CST 0 0 0.50K 0.00K Thunderstorm Wind (56EG)

The local newspaper reported a few trees were down in Ater and were blocking roads.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

314 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Coryell County Gatesville 23 2235CST 0 0 1.00K 0.00K Thunderstorm Wind (56EG)

The local newspaper reported some trees down in Gatesville, but no other property damage was reported.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Bell County (GRK)Gray Aaf Ft Hoo 23 2240CST 0 0 4.00K 0.00K Thunderstorm Wind (54MG)

A 62 MPH wind gust was measured at Fort Hood. Note: The measured wind gust of 54 knots is equivalent to 62 mph. Bosque County 3 ESE Lakeside Vlg 23 2258CST 0 0 0.00K 0.00K Hail (0.75)

Dime to Penny size hail was reported in the Steele Creek Area.

Coryell County Oglesby 23 2300CST 0 0 0.50K 0.00K Thunderstorm Wind (56EG)

The local newspaper reported a few trees were down in Oglesby and were blocking roads.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Coryell County The Grove 23 2300CST 0 0 0.50K 0.00K Thunderstorm Wind (56EG)

The local newspaper reported a few trees were down in The Grove area and were blocking roads.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Mclennan County Crawford 23 2308CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported in Crawford. Mclennan County Mcgregor 23 2308CST 0 0 2.00K 0.00K Thunderstorm Wind (53EG)

Tree limbs from 12-14 diameter trees were knocked down in McGregor.

Note: The estimated wind gust of 53 knots is equivalent to 61 mph. Bell County 2 N Temple 23 2310CST 0 0 5.00K 0.00K Thunderstorm Wind (63MG)

A 72 MPH wind gust was measured just north of Temple. Note: The measured wind gust of 63 knots is equivalent to 72 mph. Mclennan County China Spg 23 2315CST 0 0 3.00K 0.00K Thunderstorm Wind (56EG)

The COOP Observer in China Spring estimated 65 MPH winds. Also in China Spring, a retired NWS meteorologist reported a 14 diameter tree was knocked down and several 4-6 dead tree limbs were knocked down.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Mclennan County Eddy 23 2320CST 2325CST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported for at least 5 minutes by a local amateur radio operator and a member of local broadcast media in Bruceville-Eddy.

315 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Mclennan County Waco Madison Cooper 23 2320CST 0 0 10.00K 0.00K Thunderstorm Wind (57MG)

The automated weather station at Waco Regional Airport (KACT) measured a 66 MPH wind gust.

Note: The measured wind gust of 57 knots is equivalent to 66 mph. Mclennan County 2 SE East Waco 23 2320CST 0 0 2.00K 0.00K Thunderstorm Wind (48EG)

A 55 MPH wind gust was estimated at the Baylor Discovery Center on University Parks Drive.

Note: The estimated wind gust of 48 knots is equivalent to 55 mph. Mclennan County 1 SE Woodway 23 2323CST 0 0 5.00K 0.00K Thunderstorm Wind (63EG)

A 73 MPH wind gust was estimated at HWY 6 and Imperial Drive.

Note: The estimated wind gust of 63 knots is equivalent to 72 mph. Mclennan County West 23 2330CST 0 0 4.00K 0.00K Thunderstorm Wind (56EG)

At a residence near West, high winds knocked a temporary building on its side. Tree damage and other minor building damage was also reported. Power outages were also reported in town.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Mclennan County Ross 23 2330CST Leroy 2345CST 0 0 4.00K 0.00K Thunderstorm Wind (56EG)

Tree damage and minor building damage was reported in and around Ross, Tours, Leory, and Elm Mott. Power outages were also reported. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Mclennan County 2 S Axtell 23 2335CST 0 0 8.00K 0.00K Thunderstorm Wind (65EG)

Trees were uprooted and a refrigerator was blown off a back porch along HWY 84 near Axtell.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Ellis County 1 SW Ennis 23 2340CST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail was reported south-southwest of Ennis. Hill County Penelope 23 2340CST Hubbard 2355CST 0 0 60.00K 0.00K Thunderstorm Wind (61EG)

Numerous trees and power poles were reported down in the southeast corner of Hill County from Penelope to Hubbard. Several trees were also reported down along 171 south of Hubbard. Some of the downed trees blocked county roads. In Hubbard, a large glass window at a business was blown out, a few tree limbs fell on cars causing damage, and some sheet metal was wrapped around a utility pole. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Hill County Mt Calm 23 2342CST 0 0 2.00K 0.00K Thunderstorm Wind (61EG)

Trees and power lines were down in the Mount Calm area. Note: The estimated wind gust of 61 knots is equivalent to 70 mph.

316 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Limestone County 2 E Billington 23 2345CST 0 0 10.00K 0.00K Thunderstorm Wind (61EG)

Siding and roof damage was reported to a building along CR 120.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Ellis County 2 E Ennis 23 2350CST 0 0 2.00K 0.00K Hail (2.00)

Hen Egg size hail was reported 2 miles east of Ennis. Limestone County 2 N Coolidge 23 2359CST 0 0 20.00K 0.00K Thunderstorm Wind (65EG)

The roofs were damaged on two unoccupied mobile homes north of Coolidge. Other visible damage was sustained to the two mobile homes. Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Navarro County Dawson 24 0005CST Kerens 0040CST 0 0 75.00K 0.00K Thunderstorm Wind (65EG)

Numerous large trees were blown down from thunderstorm winds in a large swath starting from near Dawson and ending near Kerens. Some of these trees blocked roads or fell on cars and other structures.

Note: The estimated wind gust of 65 knots is equivalent to 75 mph. Navarro County 2 SSW Corsicana 24 0015CST 0 0 35.00K 0.00K Thunderstorm Wind (74EG)

Thunderstorm winds lifted part of the roof off the Stonebriar Apartment complex in southwest Corsicana. The Altera Sterling House next door also sustained significant roof damage. Note: The estimated wind gust of 74 knots is equivalent to 85 mph. Navarro County Corsicana 24 0015CST 0 0 25.00K 0.00K Thunderstorm Wind (74EG)

Brookshire Grocery store in Corsicana lost approximately 30 percent of its roof and had some trusses bent due to thunderstorm wind damage. Note: The estimated wind gust of 74 knots is equivalent to 85 mph. Navarro County Corsicana Muni Arpt 24 0019CST 0 0 0.00K 0.00K Thunderstorm Wind (76MG)

The Corsicana ASOS measured an 87 mph wind gust. Note: The measured wind gust of 76 knots is equivalent to 87 mph. Henderson County 2 ESE Cedar Creek Res Sout 24 0035CST 0 0 75.00K 0.00K Thunderstorm Wind (70EG)

A large boathouse had half of its roof blown off by thunderstorm winds in the Pinnacle Club Subdivision. Hundreds of trees were also reported to be down in the subdivision and some of the fallen trees damaged homes.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Henderson County 3 NW Malakoff 24 0035CST 0 0 3.00K 0.00K Thunderstorm Wind (61EG)

In Star Harbor, minor roof damage was reported and large tree limbs were blown down from thunderstorm winds.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Henderson County 2 WNW Cedar Creek Res Sout 24 0035CST 0 0 200.00K 0.00K Thunderstorm Wind (70EG)

In Key Ranch Estates, several homes were left uninhabitable after large trees were blown onto them from thunderstorm winds.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph.

317 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Henderson County 3 SE Cedar Creek Res Nort 24 0035CST 0 0 350.00K 0.00K Thunderstorm Wind (75EG)

The roof of a business in a strip mall in Gun Barrel City collapsed due to thunderstorm winds. Significant sign damage was also reported in the city and large trees were uprooted. In Loon Bay, a boat dock was lifted out of the water and smashed into the porch of a resident. The neighboring house sustained extensive damage to its second story and the wind also moved the back wall. Note: The estimated wind gust of 75 knots is equivalent to 86 mph. Henderson County Malakoff 24 0038CST 0 0 150.00K 0.00K Thunderstorm Wind (68MG)

A member of broadcast media measured a wind gust of 78 mph in Malakoff. The local newspaper reported two light poles were knocked down at the football field. A tin roof of a building was peeled back, and the sign at a church was blown out. Several trees were also knocked over and some trees fell on homes.

Note: The measured wind gust of 68 knots is equivalent to 78 mph. Kaufman County Mabank 24 0042CST 0 0 300.00K 0.00K Thunderstorm Wind (78EG)

Several buildings in Mabank sustained significant damage due to thunderstorm winds. The fire marshall estimated that 14-15 commercial buildings were damaged. Terry's Furniture Store, Mid-Cities Storage, and Groom & Sons Hardware all sustained significant damage. Part of the second story collapsed at the furniture store, at least one storage building was blown over at the storage center, and the roof of the hardware store was partially lost. Blown off shingles were common at residential homes.

Note: The estimated wind gust of 78 knots is equivalent to 90 mph. Kaufman County Mabank 24 0044CST 0045CST 0.16 30 0 0 50.00K 0.00K Tornado (EF1)

A brief EF-1 tornado, producing winds of 90 mph, touched down in Mabank and significantly damaged a residential home. The tornado was approximately a quarter mile in length. Van Zandt County 4 WSW Phalba 24 0045CST 1 NE Grand Saline 0115CST 0 0 100.00K 0.00K Thunderstorm Wind (75EG)

The Emergency Manager reported a long track of thunderstorm wind damage extending from just northeast of Mabank to Grand Saline. Most of the damage resulted from numerous large trees being blown onto area roadways while some trees were reported to have fallen onto homes and vehicles. Note: The estimated wind gust of 75 knots is equivalent to 86 mph. Van Zandt County 3 WNW Big Rock 24 0050CST 0 0 3.00K 0.00K Thunderstorm Wind (70EG)

Many trees were knocked down at Purtis Creek State Park, and the clean up took about a week to complete.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Van Zandt County 4 ESE Phalba 24 0100CST 0 0 200.00K 0.00K Lightning

The county newspaper reported that lightning caused a fire at a residence on County Road 2309. One man died in the fire as he reentered the residence to try and put the fire out. Nine children in the home escaped with only minor injuries. Two other house fires were also reported in the county: one on CR 3814 and a vacant house on CR 2319.

Van Zandt County 2 W Van 24 0104CST 0 0 4.00K 0.00K Thunderstorm Wind (61EG)

Trained spotters reported numerous trees were blown down by thunderstorm winds approximately 2 miles west of Van.

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

318 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Van Zandt County Van 24 0112CST 0 0 100.00K 0.00K Thunderstorm Wind (70EG)

The large Love's Travel Center sign was knocked down in very strong thunderstorm winds. The sign fell on a part of the gas pump awning, damaging the awning and causing minor damage to a few of the gas pumps. Also in Van, large trees were uprooted, a few trees fell on the roofs of homes, and light poles and power lines were also down.

Note: The estimated wind gust of 70 knots is equivalent to 81 mph. Rains County Emory 24 0115CST 0 0 2.00K 0.00K Thunderstorm Wind (61EG)

Several trees were reported down on several county roads near Emory.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Anderson County Frankston 24 0122CST 0 0 1.00K 0.00K Thunderstorm Wind (61EG)

Large trees were reported blown down by thunderstorm winds near Frankston.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Hopkins County Arbala 24 0130CST Pickton 0140CST 0 0 3.00K 0.00K Thunderstorm Wind (52EG)

A county commissioner reported approximately 50 trees were over roads in the Precinct 2 area. Most of these trees were broken off at 30 to 40 feet up the tree trunk. It took two days to clean up the tree debris.

A linear mesoscale convective system developed in Lampasas County and moved northeast through north Texas on the night of Friday, April 23rd into the early morning hours of the 24th. There were some isolated reports of hail up to the size of golfballs, however most of the damage from these storms resulted from strong straight-line winds up to 90 mph. There was a brief tornado in Mabank in far southeastern Kaufman County. Most of the damage associated with the strong winds were downed trees, power poles, and power lines, but some building and residential damage was evident. Thousands of residents lost power during the event. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Bell County Moffat 26 1625CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

Trees were blown down in Moffat. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Bell County Salado 26 1630CST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail was reported in Salado. Bell County 3 SSW Troy 26 1645CST 0 0 6.00K 0.00K Thunderstorm Wind (56EG)

An aluminum awning fell on a car at a truck stop. The truck stop is at mile marker 305 on I-35.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Bell County Oenaville 26 1659CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

Hackberry trees were knocked down in Oenaville. There were also 5 to 8 inch diameter tree limbs downed.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Milam County 2 NE Rockdale 26 1732CST 0 0 50.00K 0.00K Heavy Rain

A vehicle accident at East Belton and CR 333 during a thunderstorm resulted in two injuries and extensive damage to the vehicles.

319 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Milam County Rockdale 26 1747CST 0 0 2.00K 0.00K Thunderstorm Wind (53MG)

There was a 61 MPH measured wind gust at Rockdale. The local newspaper reported downed trees and power lines in and around Rockdale. Note: The measured wind gust of 53 knots is equivalent to 61 mph. Milam County 3 W Rockdale 26 1757CST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail was reported 3 miles west of Rockdale. Scattered strong thunderstorms developed in the late afternoon hours ahead of a cold front. A few storms south of U.S. Highway 84 produced downburst wind damage and penny size hail.

TXZ119 Dallas 29 1230CST 0 0 0.00K 0.00K Heat A toddler died after being left in a car for at least 3 hours.

TEXAS, North Panhandle

TXZ013 Carson 01 1445CST 2300CST 0 0 0.00K 0.00K Wildfire

The Dixon Creek grass fire began around 1445 CST about three miles south southeast of Borger just east of Texas State Highway 207 in extreme northern Carson County. The grass fire was caused by sparking transmission lines and consumed an estimated eight hundred acres. There were no reports of damages or injuries...however one hundred homes were threatened by the grass fire. The grass fire was reported to be under control by 2300 CST and a total of eighteen fire departments responded to the grass fire.

TXZ001 Dallam 01 1453CST 0 0 0.00K 0.00K High Wind Strong gradient non-thunderstorm wind gusts occurred across the extreme northwestern Texas Panhandle during the afternoon hours. No damage or injuries were reported. At 1453 CST...a fifty-two knot non-thunderstorm wind gust was reported in Texline.

TXZ012 Potter 05 1410CST 1411CST 0 0 0.00K 0.00K High Wind

A tight surface pressure gradient across the south central Texas Panhandle during the afternoon hours resulted in strong non- thunderstorm wind gusts. No damage or injuries were reported. At 1410 CST...a fifty-two knot non-thunderstorm wind gust was measured at the Amarillo ASOS station located at the Rick Husband International Airport six miles east northeast of Amarillo.

TXZ017 Randall 05 1449CST 1525CST 0 0 50.0K 0.00K Wildfire

A grass fire started about 1449 CST approximately eleven miles southeast of Amarillo on Deer Trail Road off of the Claude Highway and Pullman Road in Randall County. The grass fire consumed only an estimated fifteen acres...however it spread to a mobile home which was destroyed. There were no injuries reported. The grass fire was brought under control around 1525 CST and the Timbercreek Canyon Fire Department...the Canyon Fire Department...the Amarillo Fire Department...and the Tanglewood Fire Department responded to the fire. The Amarillo Emergency Operations Center provided fire monitoring assistance.

TXZ018 Armstrong 08 1430CST 1545CST 0 0 0.00K 0.00K Wildfire

320 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle

A grass fire started near County Road 5 in Armstrong County in the south central Texas Panhandle around 1430 CST approximately ten miles west southwest of Claude. Although no injuries or damages were reported...several residents had to be evacuated from their homes in the Fairview Community west of Claude when the fire came to within one hundred yards of their residences. A total of five homes were threatened and the grass fire forced the closure of the Claude Highway for nearly two hours. An estimated eight hundred acres were consumed including nearly one mile of Conservation Reserve Program (CRP) grasses to County Road 6. The exact cause of the grass fire...which was contained around 1545 CST...was still under investigation. Armstrong County 2 ESE Washburn 11 1552CST 0 0 0.00K 0.00K Hail (1.50)

Ham Radio Operator and trained spotter reported the hail near U.S. Highway 287 and Farm to Market Road 2373.

Gray County 6 SSE Lefors 11 1741CST 0 0 0.00K 0.00K Hail (1.00)

Gray County 3 N Laketon 11 1759CST 0 0 0.00K 0.00K Hail (0.75)

The hail was reported four miles north of Laketon in Gray County.

Roberts County 1 SW Miami 11 1802CST 1805CST 0 0 0.00K 0.00K Hail (1.00)

Roberts County 1 SW Miami 11 1803CST 0 0 0.00K 0.00K Hail (1.75)

Roberts County 7 N Lora 11 1830CST 0 0 0.00K 0.00K Hail (0.88)

Hemphill County 8 WNW Canadian Hemphill Ar 11 1900CST 0 0 0.00K 0.00K Hail (1.00)

Lipscomb County 3 ENE Booker 11 1929CST 0 0 0.00K 0.00K Hail (1.75)

Lipscomb County 1 NW Booker 11 1929CST 0 0 0.00K 0.00K Hail (1.00)

Lipscomb County 2 ENE Booker 11 1931CST 0 0 0.00K 0.00K Hail (1.75)

Ochiltree County 10 ESE Twichell 11 1932CST 0 0 0.00K 0.00K Hail (0.88)

Lipscomb County 6 ENE Booker 11 1947CST 0 0 0.00K 0.00K Hail (2.00)

Severe thunderstorms developed and moved across the eastern sections of the Texas Panhandle during the late afternoon and evening hours. These severe thunderstorms produced large hail...however no damage or injuries were reported.

Oldham County 1 S Boys Ranch 20 1638CST 0 0 0.00K 0.00K Hail (0.75)

321 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle Potter County 3 W Bushland 20 1804CST 1809CST 1.05 50 0 0 0.00K 0.00K Tornado (EF0)

A tornado survey was conducted on this tornado which occurred at 1804 CST three miles west of Bushland and just south of Interstate 40. The tornado remained over open country and no damage or injuries were reported directly from the tornado. The tornado was on the ground for approximately one mile with a maximum width of fifty yards. The tornado dissipated at approximately 1809 CST about two miles west northwest of Bushland.

Photo by Michael and Brittney Howard courtesy of KVII Channel 7. The photo was taken from Interstate 40 west of Bushland looking east. No damage or injuries were reported. Potter County 1 NNE Bushland 20 1810CST 0 0 0.00K 0.00K Hail (1.75)

The trained spotter also confirmed the tornado reported near Bushland.

Randall County 1 W Umbarger 20 1845CST 0 0 35.00K 0.00K Thunderstorm Wind (61EG)

North facing windows blown out and siding damaged at several residences just northeast of Umbarger.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Randall County 8 N Umbarger 20 1846CST 0 0 0.00K 0.00K Hail (1.75)

Randall County 3 NE Umbarger 20 1847CST 1849CST 0.9 50 0 0 0.00K 0.00K Tornado (EF0)

A tornado survey was conducted on this tornado. The tornado touched down at 1847 CST approximately three miles northeast of Umbarger. The tornado was on the ground for approximately one mile or less with a path width of fifty yards. The tornado dissipated at approximately 1849 CST approximately four miles northeast of Umbarger. The tornado remained over open country and no damage or injuries were reported directly from the tornado. However...several homes received damage from wind blown hail associated with the rear flank downdraft. Several north facing windows were blown out and hundreds of acres of crops were destroyed.

322 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle

Photo by Bary Nusz courtesy of KVII Channel 7. The photo was taken approximately eight miles south of Bushland looking north. No damage or injuries were reported. Randall County 3 NNE Umbarger 20 1848CST 1849CST 0 0 25.00K 15.00K Thunderstorm Wind (59MG)

National Weather Service damage survey indicated that wind blown hail damaged residences and several other nearby residences. North facing windows blown out and north facing siding were damaged along with hundreds of acres of crops destroyed. The wind damage was likely due to the rear flank downdraft.

Severe thunderstorms moved across the southwest and south central Texas Panhandle during the evening hours producing large hail...damaging winds...and two tornadoes. Although no injuries were reported...the hail and winds caused damage to homes and crops. Note: The measured wind gust of 59 knots is equivalent to 68 mph. Oldham County 13 N Adrian 21 1700CST 0 0 0.00K 0.00K Hail (1.75)

Oldham County 6 N Adrian 21 1710CST 0 0 0.00K 0.00K Hail (1.00)

Oldham County 13 N Adrian 21 1740CST 0 0 0.00K 0.00K Hail (1.00)

Oldham County 13 N Adrian 21 1805CST 0 0 0.00K 0.00K Hail (1.00)

Severe thunderstorms moved across the far western sections of the Texas Panhandle producing mainly large hail during the evening hours. No damage or injuries were reported.

Sherman County 27 SE Texhoma 22 1440CST 1441CST 0 0 0.00K 0.00K Hail (0.88)

Sherman County 27 SE Texhoma 22 1447CST 1448CST 0 0 0.00K 0.00K Hail (1.75)

323 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle Hansford County 1 E Spearman 22 1530CST 1531CST 0 0 0.00K 0.00K Hail (1.25)

Hansford County 1 E Spearman 22 1533CST 1534CST 0 0 0.00K 0.00K Hail (2.75)

Armstrong County 5 NE Goodnight 22 1559CST 1602CST 1.83 50 0 0 0.00K 0.00K Tornado (EF0)

The tornado touched down five miles northeast of Goodnight in Armstrong County at 1559 CST and lifted at 1602 CST approximately seven miles northeast of Goodnight. The tornado was on the ground for one to two miles with a maximum path width of fifty yards. No damage or injuries were reported.

Hansford County 1 E Spearman 22 1605CST 1606CST 0 0 0.00K 0.00K Hail (1.75)

Donley County 3 WSW Jericho 22 1610CST 1626CST 5.24 100 0 0 0.00K 0.00K Tornado (EF0)

The tornado touched down four miles southeast of Groom in Donley County at 1610 CST and lifted at 1626 CST two miles east southeast of Jericho. The tornado was on the ground for about eight miles with a maximum path width of one hundred yards. No damage or injuries were reported.

Donley County 1 NE Jericho 22 1620CST 1622CST 0 0 0.00K 0.00K Hail (2.75)

The trained spotter reported the hail near the intersection of Interstate 40 and Texas State Highway 70.

Armstrong County 3 S Goodnight 22 1620CST 1643CST 10.34 100 0 0 3.00K 0.00K Tornado (EF1)

The tornado touched down three miles south of Goodnight in Armstrong County at 1620 CST and then lifted at 1643 CST eight miles northeast of Goodnight. The tornado was on the ground for approximately eleven miles with a maximum path width of one hundred yards. Two power poles were reported broken just southwest of Goodnight along with considerable damage to barbed wire fencing.

Gray County 15 W Alanreed 22 1629CST 1630CST 0 0 0.00K 0.00K Hail (2.75)

Gray County 18 W Alanreed 22 1629CST 1630CST 0 0 0.00K 0.00K Hail (2.50)

Roberts County 19 W Codman 22 1633CST 1643CST 0 0 0.00K 0.00K Hail (1.50)

Gray County 7 W Alanreed 22 1638CST 1640CST 0.49 25 0 0 0.00K 0.00K Tornado (EF0)

The tornado touched down one mile east of Lake McClellan in Gray County at 1638 CST and then lifted at 1640 CST. The tornado was on the ground for one half mile with a maximum path width of twenty-five yards. No damage or injuries were reported.

324 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle Ochiltree County 1 S Perryton 22 1645CST 1646CST 0 0 0.00K 0.00K Hail (0.88)

Potter County 3 W Amarillo 22 1645CST 1647CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

The public reported that a large tree was knocked over by the thunderstorm wind gust.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Ochiltree County 1 S Perryton 22 1656CST 1657CST 0 0 0.00K 0.00K Hail (1.00)

Donley County 8 W Jericho 22 1659CST 1700CST 0 0 0.00K 0.00K Hail (1.75)

The Groom Fire Department reported the hail near Boydston Road and west of Texas State Highway 70.

Donley County 3 WSW Jericho 22 1707CST 1709CST 0.59 25 0 0 0.00K 0.00K Tornado (EF0)

The tornado touched down eight miles east southeast of Groom in Donley County at 1707 CST and then lifted at 1709 CST. The tornado was on the ground for one half mile with a maximum path width of twenty-five yards. No damage or injuries were reported.

Gray County 5 NW Alanreed 22 1730CST 5 NNW Mc Lean 1752CST 4.01 440 0 0 0.00K 0.00K Tornado (EF0)

The tornado had a large...broad and intense rotation that produced multiple brief tornado touchdowns. The tornado began one mile north of Lake McClellan in Gray County at 1730 CST and then lifted at 1752 CST approximately five miles north northwest of McLean. The tornado was on the ground for about nine miles with a maximum circulation width of one quarter mile. No damage or injuries were reported.

Gray County 14 W Alanreed 22 1736CST 1737CST 0 0 0.00K 0.00K Hail (1.75)

Gray County 11 ENE Lefors 22 1740CST 6 SE Laketon 1750CST 4.47 100 0 0 0.00K 0.00K Tornado (EF0)

The tornado touched down eleven miles east northeast of Lefors in Gray County at 1740 CST and then lifted at 1750 CST seven miles west southwest of Mobeetie. The tornado was on the ground for approximately five miles with a maximum width of one hundred yards. No damage or injuries were reported.

Gray County 1 S Alanreed 22 1805CST 1806CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A trained spotter estimated a fifty-two knot thunderstorm wind gust near Alanreed.

Severe thunderstorms producing large hail...damaging thunderstorm winds...and several tornadoes moved across parts of the eastern two-thirds of the Texas Panhandle. The thunderstorms winds knocked down a large tree and one tornado caused damage to power poles. No injuries were reported. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

TXZ012 Potter 24 1453CST 0 0 0.00K 0.00K High Wind

325 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, North Panhandle

A tight surface gradient across the south central Texas Panhandle during the afternoon hours resulted in non-thunderstorm wind gusts. No damage or injuries were reported. At 1453...the Amarillo ASOS station located six miles east northeast of Amarillo at the Rick Husband International Airport measured fifty knot non-thunderstorm wind gusts.

TEXAS, Northeast Cass County 2 SW Spring Hill 23 1834CST 2 E Atlanta Muni Arpt 1841CST 4.8 50 0 0 0.00K 0.00K Tornado (EF0)

The National Weather Service conducted a storm survey in Cass County, Texas and concluded that storm damage was the result of an EF0 tornado. The tornado touched down at around 7:34 PM CDT, about five miles west-southwest of Atlanta, along Highway 59, where it damaged several large trees. The tornado proceeded east-northeast where it snapped or uprooted several more trees. The tornado lifted at 7:41 PM CDT near FM 251, about one mile south of Atlanta. Maximum winds are estimated at 60-70 mph.

Cass County 2 W Queen City 23 1844CST 2 SW Cass 1855CST 7.54 100 0 0 5.00K 0.00K Tornado (EF0)

An EF0 tornado touched down on the west side of Queen City at around 7:41 PM CDT, about one mile west of Queen City, along Highway 96, where it uprooted a large tree. The tornado proceeded into Queen City where it caused damage to several large tree limbs and branches and caused moderate damage to the roof of a building. This tornado then exited Cass County, Texas and moved into Miller County, Arkansas.

Cass County 2 NW Atlanta 23 1845CST 0 0 0.00K 0.00K Hail (0.88)

Hail reported in Queen City, Texas. Cherokee County 2 NW New Summerfield 23 1950CST 0 0 0.00K 0.00K Hail (0.88)

Nickel sized hail was reported in New Summerfield, Texas. Marion County 4 WSW Kelleyville 23 2110CST 0 0 0.00K 0.00K Thunderstorm Wind (53EG)

Trees were downed along Hwy. 726 just east of Lake O The Pines.

Note: The estimated wind gust of 53 knots is equivalent to 61 mph. Smith County 2 ESE Garden Vly 24 0115CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Trees and powerlines were downed in Hideaway Lake community.

Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Smith County 2 W Tyler 24 0120CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Trees and powerlines were downed along Hwy. 110 just northwest of Tyler, Texas.

Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Smith County 2 SE Eads 24 0120CST 0 0 2.00K 0.00K Thunderstorm Wind (56EG)

A home northwest of Tyler, Texas sustained minor wind damage on FM. 724.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

326 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Northeast Smith County 1 S Tyler 24 0130CST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

Several trees and powerlines were downed in Tyler, Texas. Trees and powerlines were also downed just north of town on FM. 14. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Wood County 2 NW Quitman 24 0131CST 2 SW Cartwright 0136CST 4.23 100 0 3 75.00K 0.00K Tornado (EF0)

The National Weather Service conducted a storm survey in Wood County, Texas and concluded that storm damage was the result of an EF0 tornado. The tornado touched down at around 2:31 AM CDT, about five miles north-northwest of Mineola, along County Road 4919, where it uprooted several large trees. The tornado proceeded east, causing damage to several trees along County Road 4925. Several homes sustained damage east of Lake Fork Texas due to falling trees. The tornado then uprooted a tree along County Road 4930, and lifted soon after. Maximum winds are estimated at 75-85 mph.

Franklin County 2 SSE Mt Vernon 24 0145CST 0 0 0.00K 0.00K Thunderstorm Wind (56EG)

Numerous trees and powerlines were downed in the southern portion of the county.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Wood County 1 S Musgrove 24 0145CST 0149CST 1.62 70 0 0 10.00K 0.00K Tornado (EF0)

The National Weather Service conducted a storm survey in Wood County, Texas, and concluded that storm damage was the result of an EF0 tornado. The tornado touched down at around 2:45 AM CDT, about 1.5 miles south of Winnsboro along FM 321, where it knocked down numerous trees. The tornado track northeast crossing Hwy. 11 where it destroyed a metal hay barn. Portions of the barn were blown up to 100 yards from their source. The tornado proceeded east along Highway 11 for another 2 miles before lifting, causing additional damage to several trees along the road. Maximum winds are estimated at 65- 75 mph.

Franklin County 1 SE Mt Vernon 24 0152CST 0 0 0.00K 0.00K Thunderstorm Wind (67MG)

Wind measured at local media's weather net site near Mount Vernon, Texas.

Note: The measured wind gust of 67 knots is equivalent to 77 mph. Camp County Pittsburg 24 0200CST 0 0 1.00K 0.00K Thunderstorm Wind (52EG)

Trees were downed resulting in power outages in Pittsburg, Texas. One tree fell on top of the First Presbyterian Church. The damage to the church was minimal. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Upshur County 1 E Gilmer 24 0200CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

Trees were downed at FM 154 and FM 555 just east of Gilmer, Texas.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Upshur County 2 NNW Grice 24 0205CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

A tree was downed at FM 852 and Ocelot Road. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Titus County 1 S Talco 24 0215CST 0 0 0.00K 0.00K Hail (0.75)

327 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, Northeast Bowie County 2 N Simms 24 0220CST 0 0 0.00K 0.00K Hail (0.75)

Hail fell in the community of Simms, Texas. Red River County 3 E Rosalie 24 0220CST 0 0 0.00K 0.00K Thunderstorm Wind (54EG)

Two trees were downed east of Bogata, Texas. A disturbance moving ahead of a strong upper level storm system generated scattered thunderstorms on the 23rd. Some storms reached severe limits producing large hail. A few supercells showed some rotation...and tornadoes were reported across portions of northeast Texas during the evening hours of April 23rd and the early morning hours of April 24th. Note: The estimated wind gust of 54 knots is equivalent to 62 mph. Red River County 1 SW Clarksville 30 1745CST 0 0 0.00K 0.00K Hail (1.00)

A very unstable airmass developed across much of the Southern Plains and Lower Mississippi Valley during the afternoon and evening hours of April 30th. A strong upper level trough moved into the Southern Plains during the afternoon and sparked strong to severe thunderstorms across much of southeast Oklahoma into northeast Texas and southwest Arkansas. Strong deep layer shear and low level directional shear was present during the evening and this resulted in storms developing supercellular characteristics. Large hail and isolated tornadoes developed with this activity across the region.

TEXAS, South Central Bandera County 4 NW Vanderpool 07 0800CST 0 0 0.00K 0.00K Hail (1.50)

Bandera County 1 NE Medina 07 0810CST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm produced three quarter to one inch hail which covered the ground.

Bandera County 7 N Bandera 07 0825CST 0 0 0.00K 0.00K Hail (1.75)

A thunderstorm produced golf ball size hail. Kendall County 5 SSW Kendalia 07 0915CST 0 0 5.00K 0.00K Hail (1.50)

A thunderstorm produced ping pong ball size hail which damaged a car.

Kendall County 2 SE Boerne Sabina Arpt 07 0922CST 0 0 0.00K 0.00K Hail (1.00)

A cold front moved through South Central Texas and produced thunderstorms some of which dropped severe size hail.

Dimmit County 3 N Carrizo Spgs 15 1015CST 0 0 0.00K 0.00K Flash Flood 2 NNW Asherton Slow moving thunderstorms produced heavy rain and flooding which closed FM 1407 and FM 1557 in Carrizo Springs.

Medina County 2 N Lacoste 15 1320CST 0 0 0.00K 0.00K Flash Flood A slow moving thunderstorm produced heavy rain and flooding which closed FM 471, County Road 482, and County Road 584 in and near La Coste. Bandera County 12 SW Vanderpool 15 1823CST 0 0 0.00K 0.00K Flash Flood A slow moving thunderstorm produced heavy rain and flooding which closed Hwy 470 between Tarpley and Hwy 187.

328 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Central Bandera County 10 WSW Vanderpool 15 1842CST 0 0 0.00K 0.00K Flash Flood A slow moving thunderstorm produced heavy rain and flooding which closed Hwy 187 south of Vanderpool.

Kerr County 5 W Hunt 15 2015CST 0 0 0.00K 0.00K Flash Flood A slow moving thunderstorm produced heavy rain and flooding which closed FM 1340 along the upper Guadalupe River west of Hunt. Kerr County 4 W Hunt 15 2030CST 1 0 20.00K 0.00K Flash Flood Flood waters swept a truck off FM 1340 resulting in a fatality. A local resident of Hunt was headed home from a local school board meeting when he tried to cross a low water crossing. By the time rescuers responded he was apparently swept downstream and drowned. His body was discovered several days later about a mile downstream at another low water crossing. M73IW

Kerr County 1 WSW Hunt 15 2038CST 0 0 30.00K 0.00K Flash Flood A slow moving thunderstorm produced heavy rain and flooding which washed a vehicle off Hwy 39 southwest of Hunt. A family was rescued from their van which was washed off the road. Val Verde County 1 N Del Rio 16 0630CST 0 0 0.00K 0.00K Flash Flood Slow moving thunderstorms produced heavy rain which flooded intersections in Del Rio stranding several cars.

Val Verde County 1 N Del Rio 16 0638CST 0 0 0.00K 0.00K Flash Flood Thunderstorms produced heavy rain which flooded intersections in Del Rio with several motorists stranded in their cars.

Frio County 3 NNW Pearsall 16 1100CST 0 0 0.00K 0.00K Flash Flood Slow moving thunderstorms produced heavy rain and flooding closing some rural roads around Pearsall.

Caldwell County 2 E Luling 16 2015CST 0 0 0.00K 0.00K Flash Flood Thunderstorms produced heavy rain which caused flooding north and east of Luling. On FM 1322, Plum Creek Bridge and the intersection with McNeil Road were closed and County Road 129 was completely flooded.

Caldwell County 1 S Taylorsville 16 2035CST 0 0 0.00K 0.00K Flash Flood Thunderstorms produced heavy rain which caused flooding and closed the intersection of County Roads 158 and 159.

Bexar County 1 SW Longhorn 17 0845CST 0 0 0.00K 0.00K Flash Flood Heavy rainfall near the San Antonio International Airport caused street flooding on Country Club Lane.

Bexar County 3 NNE Hollywood Park 17 0900CST 0 0 0.00K 0.00K Flash Flood Heavy rainfall caused flooding at the intersection of Loop 1604 and Stone Oak Parkway.

Bexar County 6 N Sat Twin Oaks Arpt 17 0900CST 0 0 0.00K 0.00K Flash Flood 5 N Hollywood Park Heavy rainfall caused local street flooding in the Stone Oak section of San Antonio.

Bexar County 2 WNW (SKF)Kelly Afb San A 17 1030CST 0 0 0.00K 0.00K Flash Flood Thunderstorms produced heavy rain which caused flooding stranding cars along Ingram and Marbach Roads.

329 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Central Atascosa County 4 NE Leming 17 1330CST 0 0 0.00K 0.00K Flash Flood 1 SE Haiduk Heavy rain caused flooding which closed FM 536 from Highway 281 to IH37.

Medina County 4 SE Mico 17 1550CST 0 0 0.00K 0.00K Flash Flood Heavy rain caused flooding which closed the intersection of County Roads 2615 and 371.

Frio County 1 W Otley 17 1845CST 0 0 0.00K 0.00K Flash Flood 4 W Pearsall Heavy rain caused flooding which closed part of Texas Highway 581.

Atascosa County 4 NE Leming 17 1900CST 0 0 0.00K 0.00K Flash Flood 1 NW Haiduk Heavy rain caused flooding which closed several roads in Atascosa county. FM 2146 was closed between FM 476 and Highway 173. FM 1470 was closed near Galvan Creek. FM 1333 was closed where it crossed the Atascosa River. FM 536 was closed between US 281 and IH 37. FM 140 was closed between US 281A and Texas Highway 16.

A stagnant, split upper level pattern allowed a series of short wave troughs to move through South Central Texas. These short waves combined with deep low level moisture to cause slow moving thunderstorms. These storms produced heavy rain which caused flash flooding and river flooding. The flooding around Hunt in Kerr County resulted in several swift water rescues and one fatality. Travis County 1 WSW Lake Travis 23 1728CST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm produced pea to quarter size hail north of Briarcliff.

Williamson County 2 NW White Stone 23 1758CST 0 0 0.00K 0.00K Hail (0.88)

Real County 7 SE Vance 23 2015CST 0 0 0.00K 0.00K Hail (2.50)

A thunderstorm produced severe size hail. The largest hail was 2.5 inches and the average size was 1.75 inches.

Uvalde County 5 NE North Uvalde 23 2052CST 0 0 0.00K 0.00K Hail (2.50)

A thunderstorm produced golf ball to tennis ball size hail along Highway 83 north of Uvalde.

Edwards County 3 WSW Rocks Spgs Arpt 23 2055CST 0 0 0.00K 0.00K Hail (1.25)

Llano County 1 E Valley Spgs 23 2135CST 0 0 0.00K 0.00K Hail (1.25)

Medina County 12 WNW Hondo Arpt 23 2138CST 0 0 0.00K 0.00K Hail (0.75)

Uvalde County 2 SW Uvalde Garner Arpt 23 2143CST 0 0 0.00K 0.00K Hail (0.88)

330 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Central Maverick County 1 W Eagle Pass Muni Arpt 23 2146CST 0 0 0.00K 0.00K Hail (1.25)

Real County 7 SE Vance 23 2152CST 0 0 0.00K 0.00K Hail (2.50)

A thunderstorm produced severe size hail. The largest hail was 2.5 inches and the average size was 1.75 inches.

Maverick County 1 SE Eagle Pass 23 2200CST 0 0 0.00K 0.00K Hail (1.75)

Real County 1 SW Leakey 23 2200CST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm produced hail ranging in size from one half inch up to one inch.

Uvalde County 1 E Sabinal 23 2205CST 0 0 0.00K 0.00K Hail (1.75)

Uvalde County Montell 23 2210CST 0 0 0.00K 0.00K Hail (1.25)

Burnet County 7 N Lake Victor 23 2211CST 0 0 0.00K 0.00K Hail (1.00)

Medina County 2 NNE Hondo Arpt 23 2240CST 0 0 0.00K 0.00K Hail (0.88)

Medina County 2 NNE Hondo Arpt 23 2252CST 0 0 0.00K 0.00K Hail (1.75)

Uvalde County 1 E Uvalde 23 2258CST 0 0 0.00K 0.00K Hail (1.00)

Zavala County 1 W La Pryor 23 2300CST 0 0 0.00K 0.00K Hail (0.75)

Uvalde County Sabinal 23 2310CST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

A thunderstorm produced wind gusts estimated at 50 kts which broke numerous 5-6 inch diameter tree limbs on the east side of town. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Medina County 6 WSW (HDO)Hondo Muni Arpt23 2346CST 0 0 0.00K 0.00K Hail (1.75) 1 ESE Hondo A thunderstorm produced one and three quarter inch hail in D'Hannis and one inch hail in Hondo.

Bexar County 2 ENE Jarratt 24 0024CST 0 0 0.00K 0.00K Hail (1.00)

A thunderstorm produced one inch hail at a truck stop along I-35.

Bexar County 3 WSW San Antonio 24 0036CST 0 0 0.00K 0.00K Hail (1.00)

331 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Central Bexar County 1 WSW Terrel Hills 24 0048CST 0 0 0.00K 0.00K Hail (1.00) 3 W Converse Bexar County 1 WSW Terrel Hills 24 0055CST 0 0 0.00K 0.00K Hail (1.50) 3 W Converse A thunderstorm produced ping pong ball size hail near Brackenridge Park in San Antonio and one inch hail in Windcrest and Alamo Heights. Guadalupe County 1 WNW Marion Zuehl Arpt 24 0057CST 0 0 0.00K 0.00K Hail (1.00)

Guadalupe County 4 SE Geronimo 24 0114CST 0 0 2.00K 0.00K Hail (1.25) Seguin A thunderstorm produced one and one quarter inch hail in Geronimo which dented a truck. It also produced one inch hail in and around Seguin. A cold front moved through South Central Texas and caused thunderstorms which produced severe size hail and wind damage.

Edwards County Rocks Spgs 30 2318CST 0 0 10.00K 0.00K Hail (1.50) A thunderstorm produced one and one half inch hail which broke windows in a house and office buildings. This large hail also produced damage to several buildings in and around Rocksprings including the county courthouse where several windows were broken. The hail accumulated to several inches deep.

Real County 14 NW Prade Ranch 30 2330CST 0 0 0.00K 0.00K Hail (0.75)

A cold front moved through South Central Texas and caused severe thunderstorms. The storms formed in an environment of low CAPE and strong vertical wind shear over the western part of the forecast area and moved toward the east.

TEXAS, South Panhandle

TXZ021 Parmer 01 1405CST 0 0 0.00K 0.00K High Wind Strong southwest to westerly winds were common across the west Texas South Plains on the 1st. Although these winds were largely sustained in the 25 to 35 mph range, an isolated severe gust of 60 mph was recorded by the Texas Tech University West Texas Mesonet near Friona (Parmer County) shortly after 14:00 CST. No damage was reported.

TXZ034 Hockley 07 1545CST 1900CST 0 0 0.00K 0.00K Wildfire

Critical fire weather conditions developed in the wake of a cold frontal passage during the afternoon of the 7th, characterized by dry relative humidities in the 20 percent range and sustained winds speeds between 20 and 30 mph. These conditions promoted rapid and uncontrollable fire spread when a prescribed burn was ignited in managed grassland west of Levelland around 15:45 CST. The resultant wildfire eventually consumed 8,400 acres before it was contained. No damage or injuries were reported. Briscoe County 2 NNE Silverton 15 0430CST 10 N Quitaque 17 0200CST 0 0 0.00K 0.00K Heavy Rain

Heavy rainfall began over much of west Texas during the early morning hours of the 15th. By the time rainfall subsided early on the 17th, 48-hour rainfall record totals between 6 and 8 inches were measured in the vicinity of Caprock Canyons State Park. Local law enforcement officials reported a number of rock slides along Texas Highway 256, where the scenic route winds through steep canyon slopes. No serious damage or injuries were reported.

332 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Panhandle Childress County 2 W Childress 15 0430CST 17 0200CST 0 0 0.00K 0.00K Heavy Rain

Heavy rainfall began over much of west Texas during the early morning hours of the 15th. By the time rainfall subsided early on the 17th, 48-hour rainfall totals of 5 to 6 inches were measured over portions of western Childress County.

Floyd County Floydada 15 0430CST 17 0200CST 0 0 0.00K 0.00K Heavy Rain

Heavy rainfall began over much of west Texas during the early morning hours of the 15th. By the time rainfall subsided early on the 17th, rainfall totals ranged from 4.78 inches at Floydada to an unofficial measurement of 10.00 inches at Cedar Hill. Many unofficial reports of 6-8 inches of rain were received from residents in northern Floyd County.

Hale County 3 SW Halfway 15 0430CST 10 E Seth Ward 17 0200CST 0 0 0.00K 0.00K Heavy Rain

Heavy rainfall began over much of west Texas during the early morning hours of the 15th. By the time rainfall had subsided early on the 17th, 3.71 inches of rainfall was officially measured at Plainview.

Hall County 5 NNE Tampico 15 0430CST 17 0200CST 0 0 0.00K 0.00K Heavy Rain

Heavy rainfall began over much of west Texas during the early morning hours of the 15th. By the time rainfall subsided early on the 17th, 48-hour record rainfall totals between 6 and 8 inches were measured by an automated fire weather observing system in western Hall County.

Lubbock County 2 N West Carlisle 15 0430CST 3 SW Acuff 17 0200CST 0 0 150.00K 0.00K Heavy Rain

Heavy rainfall began over much of west Texas during the early morning hours of the 15th. By the time rainfall subsided early on the 17th, a 48-hour record total of 4.02 inches of rain had officially fallen at Lubbock's Preston Smith International Airport, with 5.32 inches at Slaton. The record rainfall contributed to the collapse of a business near the intersection of 13th Street and University Avenue around 12:30 CST on the 16th, when rain water accumulated on the structure's flat-roof. No injuries were reported.

Motley County 3 SW Matador 15 0430CST 2 W Flomot 17 0200CST 0 0 0.00K 0.00K Heavy Rain

Heavy rainfall began over much of west Texas during the early morning hours of the 15th. By the time rainfall subsided early on the 17th, up to 7 inch unofficial totals were measured over portions of northwestern Motley County.

Childress County 6 N Carey 16 1200CST 4 SW Childress 18 0500CST 0 0 25.00K 0.00K Flood

Heavy rainfall centered over western Hall County resulted in significant flooding downstream along the Prairie Dog Town Fork of the Red River. The high water flooded low lying farmland, ranch land, and several roadways. No significant damage was reported.

333 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Panhandle

Heavy rainfall over portions of Briscoe, Childress, and Hall Counties resulted in flooding along the Prairie Dog Town Fork of the Red River in Childress County. Photo courtesy: KFDA-TV - Amarillo, Texas. Floyd County 5 N Mc Coy 16 1200CST 3 S South Plains 18 0500CST 0 0 25.00K 0.00K Flood

Flooding from heavy rainfall rendered a number of roadways impassable in portions of central and northern Floyd County. Texas Highway 207 and Farm to Market Road 97 north of Floydada were closed. A motorist was stranded by high water near Cedar Hill, and was rescued by law enforcement and fire fighting officials. Low lying areas in Floydada also flooded, and several structures were threatened.

Hale County 3 N Hale Center 16 1200CST 5 WNW Finney 18 0500CST 0 0 75.00K 0.00K Flood

Low lying areas in and around Plainview were flooded by heavy rains. Flood waters threated the Ace Hardware store and several other structures, however, only minor damages were reported.

Hall County 3 SSE Lesley 16 1200CST 5 WNW Tampico 18 0500CST 0 0 25.00K 0.00K Flood

Heavy rainfall centered over western Hall County resulted in significant flooding along the Prairie Dog Town Fork of the Red River. The high water flooded low lying farmland, ranch land, and several roadways. No significant damage was reported.

Lubbock County 3 NW Lubbock 16 1200CST 2 SE Doud 18 0500CST 0 0 150.00K 0.00K Flood

Flooding from heavy rainfall resulted in the closure of numerous roadways in the Lubbock area. Portions of south Indiana Avenue were washed away by the flood waters. A number of roadways were flooded in the Ransom Canyon and Buffalo Springs Lake areas of eastern Lubbock County, where some residences were also isolated by rising flood waters. No injuries were reported.

334 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Panhandle

Flooding inundated roadways along the North Double Mountain Fork of the Brazos River near Buffalo Springs Lake. Photo courtesy: John Lipe - National Weather Service - Lubbock, Texas. Motley County Whiteflat 16 1200CST 18 0500CST 0 0 25.00K 0.00K Flood

Flooding from heavy rainfall resulted in high water over a number of roadways near Whiteflat, including Texas Highway 70.

A slow moving storm system translated eastward from the desert southwest across the southern Rockies and plains on the 15th and 16th. Lift and moisture associated with this system resulted in widespread showers and thunderstorms that overspread portions of the west Texas Permian Basin, South Plains, and the Panhandle early on the 15th. Rainfall was continuous at many locations through the morning hours of the 17th. Small scale circulations embedded within the ambient flow aloft, however, enhanced the rainfall at times and resulted in periods of heavy rain. Daily record rainfall totals were measured at Lubbock's Preston Smith International Airport on the 15th and 16th. The tally also set a single-rain event record for the area and jump started Lubbock toward its wettest year-to-date rainfall total in the city's history. Doppler radar estimates indicated that the heaviest rainfall totals occurred along a swath northeast of Lubbock, over portions of Briscoe, Floyd, and Hall Counties, where upwards of eight to ten inches were estimated over rural areas. A maximum radar estimate of nearly one foot of rain was indicated near Caprock Canyons State Park in eastern Briscoe County and western Hall County. Ground truth measurements unofficially reached ten inches in adjacent areas of northern Floyd County, with five to seven inch totals more common. The heavy and persistent rainfall resulted in flooding, mostly in the form of swollen playa lakes, creeks, and streams. Some of the most significant flooding occurred along the Prairie Dog Town Fork of the Red River, where runoff from the Briscoe and Hall County rains flowed downstream over portions of Childress County. Notable flooding also occurred along the North Double Mountain Fork of the Brazos where runoff from urban areas around Lubbock caused overflow of Buffalo Springs Lake in eastern Lubbock County. The flow downstream cut off a number of roads and isolated several homesteads. Structural damage was largely limited to the collapse of a flat roof on a Lubbock business that resulted in the partial collapse of the building. At least one motorist was rescued from a stranded vehicle in Floyd County, but no injuries were reported. Total damages that resulted from the excessive rainfall and flooding across the South Plains were estimated at $475,000.

Hale County 6 WNW Petersburg 21 1710CST 1720CST 0 0 0.00K 0.00K Hail (1.75)

Multiple public reports of golfball size hail were received along a swath northwest of Petersburg. This hail accompanied an isolated supercell storm that developed along a pre-existing outflow boundary. No damages were reported.

335 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Panhandle Floyd County 5 S Floydada 21 1712CST 14 ENE South Plains 1821CST 0 0 0.00K 0.00K Hail (1.75)

A swath of large hail that ranged in size from quarters to baseballs accompanied a left moving (anticyclonic) supercell as it tracked north-northeastward over Floyd County during the 17:00 CST and 18:00 CST hours of the 21st. Storm chasers initially reported quarter size hail five miles south of Floydada along Texas Highway 207 at 17:12 CST. Hailfall increased to the size of golfballs as reported by the public just east of Cedar Hill at 17:52 CST. Golfball size hail along Farm to Market Road 1065 east of South Plains briefly increased to the size of baseballs before ending at 18:27 CST. No damages were reported.

Floyd County 15 E South Plains 21 1827CST 0 0 1.00K 0.00K Hail (2.75)

Multiple reports of very large hail up to the size of baseballs were received along Farm to Market Road 1065 east of South Plains at 18:21 CST. Several car windsheilds were reportedly broken by the hail.

Baseball size hail fell over portions of northern Floyd County shortly before 18:30 CST. Photo courtesy: Kiel Ortega - National Severe Storms Laboratory. Dickens County 11 E Afton 21 1930CST 0 0 0.00K 0.00K Hail (2.50)

Storm chasers reported very large tennis ball size hail along Farm to Market Road 193 in northeastern Dickens County. The hail was associated with a persistent supercell thunderstorm that developed near Dickens and moved northeastward over rural portions of Dickens County for nearly two hours. No damages were reported.

Childress County 1 NW Carey 21 2021CST 0 0 0.00K 0.00K Hail (1.50)

Skywarn storm spotters reported ping pong ball size hail along U.S. Highway 287 near Carey.

Isolated to scattered severe thunderstorms impacted portions of the eastern South Plains, Rolling Plains, and the extreme southeastern Texas Panhandle during the late afternoon and evening of the 21st. Thunderstorms developed along a stalled frontal boundary and a dryline. Several of the thunderstorms evolved into supercells and produced very large hail up to the size of baseballs. The most prolific hail producing storm of the day impacted portions of Floyd County. No significant damages were reported from the storms.

Hale County 5 ESE Plainview 22 1745CST 0 0 0.00K 0.00K Hail (1.25)

Skywarn storm spotters reported half dollar size hail along U.S. Highway 70 southeast of Plainview.

336 Time Path Path Number of Estimated April 2010 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 22 1748CST 0 0 0.00K 0.00K Hail (0.88)

Skywarn storm spotters reported nickel size hail just north of Post.

Crosby County 4 E Crosbyton 22 1801CST 0 0 50.00K 0.00K Thunderstorm Wind (52EG)

Trained storm spotters reported that damaging thunderstorm winds flipped a cotton trailer and destroyed a barn near the Silver Falls Roadside Park on U.S. Highway 82 east of Crosbyton.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Floyd County 2 S South Plains 22 1810CST 1815CST 0 0 10.00K 0.00K Hail (1.00)

A motorist reported that penny to quarter size hail damaged her vehicle along Texas Highway 207 just south of South Plains.

Motley County 10 SSW Northfield 22 1820CST 1842CST 7.5 1300 0 0 100.00K 0.00K Tornado (EF2)

Multiple storm chasers observed a large and rain-wrapped tornado that moved east-northeastward across the Motley and Cottle County line south-southeast of Northfield and southwest of Cee Vee during the 18:00 CST hour on the 22nd. Doppler radar, along with post-storm ground and aerial surveys, suggest that the tornado developed at approximately 18:20 CST 9 miles south-southwest of Northfield, just east of Farm to Market Road 94. Storm chasers first obtained a visual confirmation of the tornado at 18:37 CST as it partially emerged from obscuring rain curtains. Photographs show a very large wedge-shaped tornado, with only the southern portion of the vortex visible through the wrapping precipitation. The tornado's track across northeastern Motley County remained over uninhabited ranch land. A National Weather Service cooperative observer, however, reported a loud roar as the tornado passed south of her home south of Northfield. Surveys of adjacent ranch land, conducted by private land owners as well as National Weather Service and Texas Tech University West Texas Mesonet meteorologists, revealed that the tornado destroyed four windmills, severely damaged mesquite trees, and snapped at least a half dozen wooden utility poles. The damage path was measured to be three-quarters of a mile wide. The tornado again became totally obscured by rain and hail within the parent high precipitation supercell storm before it crossed the Motley and Cottle County line approximately 8.25 miles south-southeast of Northfield at 18:42 CST. It likely dissipated just a few minutes later at approximately 18:45 CST southwest of Cee Vee in northwestern Motley County. The total path length of the tornado across portions of Motley and Cottle Counties was approximately 9 miles, with a 25-minute duration. Enhanced-Fujita Scale damage indicators for both free-standing metal towers and metal electrical transmission line poles were considered to gauge expected wind speeds for the destroyed windmills. The lower bounds for degrees of damage 2 and 5 respectively were accepted, yielding estimated wind speeds between 110 and 115 mph. Winds of at least this magnitude are additionally supported by the expected value for snapped wooden utility poles, which were additionally observed along the damage path. Therefore an EF-2 rating was assigned for this tornado.

Motley County Northfield 22 1822CST 1825CST 0 0 0.00K 0.00K Hail (1.75)

A National Weather Service cooperative observer reported golfball size hail that intermittently mixed with larger two inch- diameter hailstones at Northfield. No damages were reported.

337 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Panhandle Motley County Northfield 22 1824CST 0 0 0.00K 0.00K Hail (2.00)

A National Weather Service cooperative observer reported that very large tennis ball hailstones intermittently mixed with more numerous golfball size hail at Northfield. No damages were reported.

Garza County 12 NE Post 22 1837CST 1841CST 0 0 0.00K 0.00K Hail (1.75)

Local emergency management officials reported golfball to baseball size hail northeast of Post.

Garza County 12 NE Post 22 1840CST 0 0 0.00K 0.00K Hail (2.75)

Local emergency management officials reported that very large baseball size hailstones intermittently mixed with more numerous golfball sized stones northeast of Post. Cottle County 5 WSW Cee Vee 22 1842CST 1845CST 1.5 1300 0 0 0.00K 0.00K Tornado (EF2)

Multiple storm chasers observed a large and rain-wrapped tornado that moved east-northeastward across the Motley and Cottle County line south-southeast of Northfield and southwest of Cee Vee during the 18:00 CST hour on the 22nd. Doppler radar, along with post-storm ground and aerial surveys, suggest that the tornado developed at approximately 18:20 CST south-southwest of Northfield in Motley County. Storm chasers first obtained a visual confirmation of the tornado at 18:37 CST as it partially emerged from obscuring rain curtains, while still in rural areas of northeastern Motley County. Photographs from that time show a very large wedge-shaped tornado. The tornado's maximum intensity, per post storm surveys by private land owners and meteorologists from the National Weather Service and Texas Tech University West Texas Mesonet, occurred in northeastern Motley County where four windmills were destroyed, mesquite trees were severely damaged, and where a number of wooden utility poles were snapped. The damage path was measured to be three-quarters of a mile wide near the Motley and Cottle County line. The tornado again became totally obscured by rain and hail within the parent high precipitation supercell storm before it crossed the Motley and Cottle County line approximately 4.8 miles west-southwest of Cee Vee at 18:42 CST. Doppler radar velocity data shows subtle evidence that a mesocyclone occlusion may have occurred, and that the tornado likely dissipated just a few minutes later at approximately 18:45 CST 3.5 miles southwest of Cee Vee. A second tornado, however, quickly developed in a cyclic fashion just southeast of the initial tornado as a new mesocyclone became dominant. The total path length of the tornado across portions of Motley and Cottle Counties was approximately 9 miles, with a 25-minute duration. Enhanced-Fujita Scale damage indicators for both free-standing metal towers and metal electrical transmission line poles were considered to gauge expected wind speeds for the destroyed windmills observed in northeastern Motley County. The lower bounds for degrees of damage 2 and 5 respectively were accepted, yielding estimated wind speeds between 110 and 115 mph. Winds of at least this magnitude are additionally supported by the expected value for snapped wooden utility poles, which were additionally observed along the damage path. Therefore an EF-2 rating was assigned for this tornado.

Cottle County 5 SW Cee Vee 22 1846CST 1920CST 12.25 975 0 0 300.00K 0.00K Tornado (EF3)

A large and rain wrapped tornado tracked from southwest of Cee Vee to just west of U.S. Highway 62/83 east-northeast of Cee Vee between 18:46 and 19:20 CST. A storm spotter observed the tornado as it passed southeast of Cee Vee at approximately 19:05 CST, and described it visually as a large wedge-shaped vortex. A post-storm ground and aerial survey conducted by local emergency management officials and National Weather Service meteorologists concluded that the tornado resulted in significant EF-3 damage. A number light weight objects and structures, including well-houses, horse stables, utility poles, empty semi-truck trailers, and a partially filled petroleum tank were heavily damaged or destroyed along the initial portions of the tornado's track through ranchland southwest and south of Cee Vee. This includes minor roof damage to a permanent farm home near County Road 172.

338 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Panhandle

Significant damage first occurred at a farmstead 3 miles east-southeast of Cee Vee, south of Farm to Market Road 1440. At this site, upwards of twenty-percent of the roof was removed from a well-built permanent home. A large metal building was partially collapsed and a well-house was completely destroyed. A horse trailer was blown over and rolled. In addition, several large trees were uprooted. The tornado continued to move northeastward and impacted a second farmstead four miles east of Cee Vee, just south of Farm to Market Road 1440. The tornado's maximum damage intensity was observed at this site, where a well-built stucco constructed permanant home, a cinderblock two-car garage, and several outbuildings were destroyed. The home's roof was totally removed, and three exterior walls collapsed. A portion of the home's roof and exterior walls were blown downwind and struck the two-car cinderblock garage broadside. This contributed to the complete destruction of that structure with only the frames of two exterior walls remaining. Two outbuildings and a horse stable were completely destroyed, with another unroofed. In addition, an entire stand of more than a dozen large trees were uprooted. A detailed survey by local officials of the site, revealed that the home was well-built, and that the exterior walls were secured to the slab foundation with bolts.

In collaboration with experts at Texas Tech University's Wind Engineering Department, the developers of the Enhanced-Fujita Scale, it was determined that estimated wind speeds at the site of the destroyed residence ranged between 130 and 150 mph. With an average expected wind speed of 140 mph, the tornado was assigned an EF-3 rating based on this damage.

The tornado continued northeastward across Farm to Market Road 1440. It caused light roof damage to a couple of light weight structures before dissipating just west of U.S. Highway 62/83 east-northeast of Cee Vee at approximately 19:20 CST.

Despite damaging three residences, no injuries were reported.

An aerial view of a rural homestead that was destoyed by an EF-3 tornado near Cee Vee (Cottle County). Photo courtesy: Jody James and Felicia Bowser - National Weather Service - Lubbock, Texas. Lynn County Tahoka 22 1929CST 4 SSW Wilson 1935CST 0 0 0.00K 0.00K Hail (1.00)

Law enforcement officials and National Weather Service cooperative observers reported quarter size hail along a swath from Tahoka northeastward along Farm to Market Road 400 to southwest of Wilson.

Childress County 7 SSW Childress 22 1945CST 0 0 0.00K 0.00K Hail (1.75)

Local fire department officials reported golfball size hail along U.S. Highway 62/83 on the Childress and Cottle County line south of Childress. Cottle County 6 NE Coleyville 22 1945CST 0 0 0.00K 0.00K Hail (1.75)

Local fire department officials reported golfball size hail along U.S. Highway 62/83 on the Childress and Cottle County line south of Childress.

339 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Panhandle Cottle County 4 W Swearingen 22 2005CST 2012CST 5 150 0 0 0.00K 0.00K Tornado (EF0)

Numerous storm chasers and Skywarn spotters reported witnessing an intermittent tornado near Swearingen shortly after 20:00 CST on the 22nd. Post-storm surveys by National Weather Service meteorologists did not reveal significant damage in the area, however, the number of eyewitness reports coupled with Doppler radar presentations of the parent supercell lend credibility to the presence of a tornado.

Lynn County 8 W Tahoka 22 2020CST 0 0 0.00K 0.00K Hail (1.00) Skywarn storm spotters reported nickel to quarter size hail along U.S. Highway 380 west of Tahoka.

Lynn County 3 ESE New Home Arpt 22 2056CST 3 SW Tahoka T Bar Arpt 23 0000CST 0 0 0.00K 0.00K Flood

Heavy rainfall from training thunderstorms resulted in flooding that persisted for several hours in portions of central and northeastern Lynn County. Local emergency management officials initially reported that ponding of high water rendered a U.S. Highway 87 underpass impassable just before 21:00 CST. A small section of the highway had to be closed until approximitly 23:00 CST. A post-storm survey by a National Weather Service hydrologist revealed that swollen playa lakes inundated parts of U.S. Highway 87 north of Tahoka and U.S. Highway 380 east of Tahoka. No damage was reported.

Garza County Southland 22 2107CST 0 0 0.00K 0.00K Hail (1.00)

Hail that ranged in size from peas to quarters was reported in Southland just after 21:00 CST.

Dickens County Dickens 22 2117CST 0 0 0.00K 0.00K Hail (1.25)

The South Plains Storm Spotting Team reported half dollar size hail in Dickens.

Crosby County Crosbyton 22 2131CST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail was reported in Crosbyton shortly after 21:30 CST.

Cottle County 2 N Paducah 22 2255CST 0 0 50.00K 0.00K Thunderstorm Wind (65EG)

A linear complex of severe thunderstorms resulted in significant wind damage at a homestead north of Paducah along U.S. Highway 62/83 shortly before 23:00 CST. Local emergecy management officials reported that thunderstorm winds caused heavy roof and window damage to a permanent home. A number of large trees were blown down and five utility poles were snapped by the winds. No injuries were reported. Scattered thunderstorms developed over the central and eastern South Plains region of west Texas during the late afternoon and evening hours of the 22nd. These storms resulted in significant severe weather, including strong tornadoes, as they impacted portions of the extreme southeastern Panhandle and the Rolling Plains. The severe weather over the South Plains of west Texas on the 22nd was part of a larger tornado outbreak that impacted areas from west Texas northward through western Kansas and eastern Colorado. Thunderstorms initiated over the central South Plains along and east of a dryline late in the day. These storms, some exhibiting supercell characteristics, initially became severe and produced large hail and damaging winds before 18:00 CST. By 18:20 CST, the first of three tornadoes, two of which were long-lived and significant, developed over northeastern Motley County. The parent supercell thunderstorm produced two damaging and rain-wrapped tornadoes over portions of Motley and Cottle Counties. The initial tornado south of Northfield crossed the Motley and Cottle County line southwest of Cee Vee. This three- quarter mile wide EF-2 tornado destroyed windmills and utility poles as it tracked through rural ranchlands. The second tornado heavily damaged or destroyed three farmsteads south and southeast of Cee Vee (Cottle County). Winds were estimated at approximately 140 mph where one home was destroyed east of that community. No injuries were reported.

A second supercell thunderstorm developed south of the initial tornadic storm, and became tornadic near Swearingen (Cottle County) shortly after 21:00 CST.

340 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, South Panhandle

In addition to tornadoes, numerous reports of large hail up to the size of baseballs were received. Another Cottle County home was heavily damaged by thunderstorm winds just north of Paducah as convection organized into a linear complex late in the evening. Also, training thunderstorms repeatedly moved over the Tahoka area in Lynn County. This resulted in areas of flooding and portions of two U.S. Highways were rendered impassable.

In all, property damages were estimated at $530,000. No injuries were reported. Note: The estimated wind gust of 65 knots is equivalent to 75 mph.

TXZ025-029 Hale - Hall 23 1315CST 1340CST 0 0 20.0K 0.00K High Wind

TXZ031 Motley 23 1400CST 1500CST 0 0 10.0K 0.00K Strong Wind

TXZ024-026-035 Briscoe - Childress - Lubbock 23 1429CST 1500CST 0 0 0.00K 0.00K High Wind

In the wake of a passing storm system that contributed to the severe weather and tornado outbreak on the 22nd, a tight pressure gradient over the South Plains of west Texas resulted in widespread sustained westerly winds between 25 mph and 35 mph during the afternoon hours of the 23rd. By midday, isolated virga showers developed and locally enhanced wind gusts. A few severe wind gusts were observed by the Texas Tech University West Texas Mesonet and the KVII-TV Schoolnet near the virga showers throughout the afternoon. A 55-year old cottonwood tree was blown down onto a house in Matador. The roof of the house sustained minimal damage and the occupant of the home was uninjured. A nearby Texas Tech University West Texas Mesonet site recorded a peak gust of 55 mph. Winds additionally blew tree limbs down into power lines in Plainview (Hale County), and resulted in a power outage that affected 650 households for nearly two hours. A list of measured severe wind gusts follows: 60 mph at Plains (Yoakum County), 60 mph at Silverton (Briscoe County), 59 mph at Childress (Childress County), 58 mph at Abernathy (Hale County), 58 mph at Slaton (Lubbock County), and 58 mph at Turkey (Hall County).

TEXAS, West

TXZ074-258 Davis/Apache Mountains Area - Guadalupe Mountains of Culberson County

01 1151MST 1420MST 0 0 0.00K 0.00K High Wind

A potent mid level shortwave trough approached the region. Strong mid level winds ahead of this system mixed down and affected the Davis and Guadalupe Mountains.

05 1200MST 1205MST 0 0 0.00K 0.00K High Wind

06 0000MST 2300MST 0 0 0.00K 0.00K High Wind

06 0351MST 1751MST 0 0 0.00K 0.00K High Wind

06 0500MST 1200MST 0 0 0.00K 0.00K High Wind

TXZ074 Davis/Apache Mountains Area 06 1635CST 1640CST 0 0 0.00K 0.00K High Wind

Strong mid level winds ahead of an approaching upper trough resulted in high winds in the Guadalupe Mountains.

341 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, West Brewster County 1 NE Alpine Muni Arpt 11 1528CST 1533CST 0 0 0.00K Hail (1.00)

Brewster County 1 NE Marathon 11 1740CST 1751CST 0 0 150.00K 0.00K Hail (2.00)

Several windows, roofs and other structural items were damaged at the Gage Hotel in Marathon, TX.

Brewster County 2 E Marathon 11 1751CST 1800CST 0 0 0.00K 0.00K Hail (2.00)

Brewster County 40 SSE Marathon 11 1758CST 1805CST 0 0 0.00K Hail (1.25)

Culberson County 7 N Pine Spgs 12 1632CST 1645CST 0 0 0.00K Hail (1.00)

Culberson County 4 NW Pine Spgs 12 2024CST 2124CST 0 0 0.00K 0.00K Flash Flood

A park ranger reported a 3 foot boulder was blocking SH 54 due to high flowing water. Low water crossings were also impassable. An upper level shortwave trough along with adequate moisture and daytime heating lead to widely scattered to scattered thunderstorms across southwest and west Texas.

Culberson County Kent 14 1542CST 1550CST 0 0 0.00K 0.00K Hail (1.00)

Brewster County Castolon 14 1625CST 1725CST 0 0 0.00K 0.00K Flash Flood

More than 6 inches of flowing water was present across several low water crossings along Route 16 from Castolon to Santa Elena Canyon. There was no significant damage reported. Midland County 5 ENE Midland 15 0915CST 5 WNW Greenwood 1000CST 0 0 0.00K 0.00K Flash Flood

Six to eight inches of flowing water covered the intersection of Interstate 20 and County Road 1140. There were no reports of damage. An abundantly high amount of moisture combined with an upper level disturbance, slow storm motions and a surface dryline to produce heavy rainfall across southwest Texas. In addition, one severe storm was also observed during the afternoon hours.

Borden County 1 W Gail 22 1746CST 1751CST 0 0 0.00K 0.00K Hail (1.00)

Scurry County 2 SSW Knapp 22 1848CST 1850CST 0 0 0.00K 0.00K Hail (1.00)

Surface convergence along a dryline and the approach of an upper level shortwave trough across far west Texas resulted in scattered severe convection during the evening hours.

342 Time Path Path Number of Estimated April 2010 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 22 1851MST 23 1551MST 0 0 0.00K 0.00K High Wind

Strong mid level winds associated with a potent upper air trough imparted strong surface winds to the Guadalupe Mountains, Davis Mountains and portions of the southeast New Mexico plains.

Dawson County 2 WNW Welch 22 1907CST 1912CST 0 0 0.00K Hail (1.75)

Scurry County 5 NE Knapp 22 1910CST 1912CST 0 0 0.00K Thunderstorm Wind (52EG)

A metal roof was blown off a structure due to a strong wind gust, estimated to be near 60 mph.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Andrews County Andrews 22 2020CST 2023CST 0 0 0.00K 0.00K Hail (0.88)

Andrews County 2 E Andrews Co Arpt 22 2024CST 2027CST 0 0 0.00K 0.00K Hail (1.75)

Andrews County 8 SSE Andrews 22 2033CST 2037CST 0 0 0.00K 0.00K Hail (1.00)

Surface convergence along a dryline and the approach of an upper level shortwave trough across far west Texas resulted in scattered severe convection during the evening hours.

TXZ258 Guadalupe Mountains of Culberson County 22 2100MST 24 0500MST 0 0 0.00K 0.00K High Wind

Strong mid level winds associated with a potent upper air trough imparted strong surface winds to the Guadalupe Mountains, Davis Mountains and portions of the southeast New Mexico plains.

Upton County 1 E Mc Camey 22 2154CST 2158CST 0 0 0.00K 0.00K Hail (1.00)

Upton County 1 E Rankin Arpt 22 2222CST 2226CST 0 0 0.00K 0.00K Hail (1.00)

Surface convergence along a dryline and the approach of an upper level shortwave trough across far west Texas resulted in scattered severe convection during the evening hours.

TXZ074-258 Davis/Apache Mountains Area - Guadalupe Mountains of Culberson County

23 1200MST 0750MST 0 0 0.00K 0.00K High Wind

Strong mid level winds associated with a potent upper air trough imparted strong surface winds to the Guadalupe Mountains, Davis Mountains and portions of the southeast New Mexico plains.

28 1100MST 30 0451MST 0 0 0.00K 0.00K High Wind

343 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

TEXAS, West

Strong mid level winds preceding an upper level trough resulted in strong winds across the Guadalupe Mountains.

TEXAS, Western North Wichita County Kamay 02 0400CST 0 0 7.00K 0.00K Thunderstorm Wind (52EG)

A few power poles near the Post Office were damaged. Monetary damages were estimated.

Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Wichita County 2 WNW Burkburnett 02 0400CST 0402CST 0 0 15.00K 0.00K Thunderstorm Wind (56EG)

Five power poles sustained damage near Highway 240 and FM 369. A metal roof was blown off of a trailer at FM 269 and Kramer Road. Monetary damages were estimated. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Wichita County 6 SSE Pleasant Valley 02 0420CST 0422CST 0 0 6.00K 0.00K Thunderstorm Wind (56EG)

One telephone pole was snapped off near the top. Several other power poles were damaged. Monetary damages were estimated.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Wichita County 5 SSE Pleasant Valley 02 0420CST 0422CST 0 0 3.00K 0.00K Thunderstorm Wind (56EG)

A couple of power lines were downed on Barnett Road just south of US Highway 277. Monetary damages were estimated.

A pacific cold front/dry line moved east into northern Texas during the early morning hours. Showers and thunderstorms developed along the front, with the aide of an upper level storm system that slowly moved east toward the southern plains. The thunderstorms increased in intensity as they moved/developed east, as better instability was in place. Strong wind shear was in place, especially with the developing nocturnal low-level jet, and this helped with the organization of the thunderstorms. Strong winds were the main threat with the thunderstorms, with severe winds reported over Wichita county. Damage was reported in and around Kamay, Wichita Falls, and Burkburnett. The storms moved northeast into Oklahoma by sunrise. Note: The estimated wind gust of 56 knots is equivalent to 64 mph.

Tree damage across southwest Wichita Falls. Photo courtesy of Charles Byars.

344 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

UTAH, East

UTZ023-028 Eastern Uinta Mountains - La Sal & Abajo Mountains 01 0000MST 0500MST 0 0 0.00K 0.00K Winter Storm

UTZ025 Tavaputs Plateau 01 0000MST 1900MST 0 0 0.00K 0.00K Winter Weather

A strong winter storm system moved into the Great Basin Region pulling a strong cold front with it. The front stalled over northeast Utah, where it produced heavy snowfall over the eastern Utah mountains. The front then pushed through western Colorado spreading heavy snow over the Colorado mountains and higher valleys across northwest Colorado. This event began in March, so please see the March 2010 Storm Data Publication for additional information.

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 30 2359MST 0 0 0.00K 0.00K Drought

Drought conditions across eastern Utah were mostly unchanged throughout the month of April. Some slight improvement occurred in Grand county, where conditions improved from abnormally dry to near normal.

UTZ025 Tavaputs Plateau 02 1400MST 04 0500MST 0 0 0.00K 0.00K Winter Weather

A Pacific, spring storm system skirted across northeast Utah and northwest Colorado spreading snowfall over the higher elevations.

UTZ023 Eastern Uinta Mountains 04 1400MST 07 0100MST 0 0 0.00K 0.00K Winter Storm

A strong, spring storm system over the Great Basin Region pushed eastward and spread significant snowfall over the mountains of eastern Utah and western Colorado.

UTZ025-028 La Sal & Abajo Mountains - Tavaputs Plateau 21 1900MST 23 0700MST 0 0 0.00K 0.00K Winter Weather

A broad and deep Pacific storm system rotating over the Great Basin spread snowfall over the Rocky Mountains of eastern Utah and western Colorado while pushing a cold front from west to east across the area.

UTZ023 Eastern Uinta Mountains 23 0500MST 24 0400MST 0 0 0.00K 0.00K Winter Weather

As a broad and deep trough of low pressure moved onto the eastern plains, moisture wrapping around the system spread another round of mountain snow across northeast Utah.

28 1400MST 30 0800MST 0 0 0.00K 0.00K Winter Weather

UTZ024 Eastern Uinta Basin 28 1700MST 29 0900MST 0 0 0.00K 0.00K Winter Weather

UTZ028 La Sal & Abajo Mountains 29 0100MST 1900MST 0 0 0.00K 0.00K Winter Weather

345 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

UTAH, East

A strong, late season storm system spread significant snowfall amounts over the eastern Utah mountains.

UTAH, West and Central

UTZ003-006>009- Salt Lake and Toole Valleys - Southwest Utah/Cedar City/Milford - Wasatch Mountain 016 Valleys/Huntsville/Park City/Heber - Wasatch Mountains I80 North - Wasatch Mountains South of I80 - Western Unita Mountains 01 0000MST 0900MST 0 0 0.00K 0.00K Winter Storm

A strong, cold, and moist Pacific storm that started in March across Utah continued into April. The storm entered the state on the 31st, bringing widespread heavy snow, particularly in the higher terrain. Note that this episode began in March.

UTZ007 Wasatch Mountains I80 North 02 2100MST 03 0700MST 0 0 0.00K 0.00K Winter Storm

A Pacific storm system brought valley rain and mountain snow to much of northern and central Utah. The heaviest snow fell in the Wasatch Mountains north of Interstate 80.

04 1350MST 1 0 0.00K 0.00K Avalanche

UTZ009 Western Unita Mountains 04 2100MST 06 1400MST 0 0 0.00K 0.00K Winter Storm

UTZ007 Wasatch Mountains I80 North 05 0000MST 06 2100MST 0 0 0.00K 0.00K Winter Storm

UTZ016 Southwest Utah/Cedar City/Milford 05 0030MST 1503MST 0 0 0.00K 0.00K High Wind

UTZ006-008-010- Central Mountains - Wasatch Mountain Valleys/Huntsville/Park City/Heber - Wasatch Mountains South 517 of I80 - Wasatch Plateau/Book Cliffs 05 0100MST 06 1600MST 0 0 0.00K 0.00K Winter Storm

UTZ015-021 Glen Canyon Recreation Area/Lake Powell - West Central Utah/Delta

05 1450MST 1945MST 0 0 0.00K 0.00K High Wind

UTZ001-002 Cache Valley/Utah Portion - Northern Wasatch Front/Brigham City/Ogden Bountiful

05 1800MST 06 1500MST 0 0 0.00K 0.00K Winter Storm

UTZ013 San Rafael Swell/Greene River/Hanksville 05 1859MST 0 0 0.00K 0.00K High Wind A major winter storm took a three day period to move through northern Utah, bringing heavy wet snow to the area. Though the snowfall remained primarily in northern Utah, southern Utah received strong gusty winds as this storm moved through the region. The combination of snowfall and strong winds in northern Utah also produced hazardous avalanche conditions, with one fatal avalanche during this period of time.

346 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

UTAH, West and Central UTZ005-021 Glen Canyon Recreation Area/Lake Powell - Great Salt Lake Desert and Mountains/Wendover/Snowville

12 1105MST 1815MST 0 0 0.00K 0.00K High Wind

Another storm system moved through the state of Utah, bringing gusty winds to both northern and southern Utah.

Box Elder County 12 SSW Saline 21 0500MST 0 0 0.00K 0.00K Thunderstorm Wind (52MG)

The Hat Island sensor recorded a wind gust of 60 mph. Note: The measured wind gust of 52 knots is equivalent to 60 mph. Davis County 1 ENE Syracuse 21 0555MST 0 0 1.00K 0.00K Thunderstorm Wind (43EG)

Part of a midsized pear tree was blown down from thunderstorm winds.

Note: The estimated wind gust of 43 knots is equivalent to 49 mph. Utah County 4 SW Lehi 21 1150MST 1155MST 0 0 0.00K 0.00K Hail (1.00)

Hail with a diameter of 0.75 inches and 1.00 inch were both reported with this storm near Lehi.

Salt Lake County 3 E Nash 21 1210MST 2 ESE Sandy City 1235MST 0 0 0.00K 0.00K Hail (1.00)

Both 1.00 inch hail and 0.75 inch hail were reported across the Salt Lake Valley with this storm.

Salt Lake County 2 E (SLC)Salt Lake City 21 1238MST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)

The roof of a carport was blown off near 2000 East and 2700 South.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Salt Lake County 2 SW Sugar House 21 1250MST 0 0 0.00K 0.00K Thunderstorm Wind (51MG)

The Parleys Canyon sensor recorded a wind gust of 59 mph. Note: The measured wind gust of 51 knots is equivalent to 59 mph. Weber County 1 NE North Ogden 21 1330MST 0 0 0.00K 0.00K Hail (0.75)

Hail with a diameter of 0.75 inches was reported near North Ogden, with the hail accumulating 2 to 3 inches deep.

A strong Pacific storm moved slowly across the area on April 21st, initiating many thunderstorms across northern Utah, with some of them being severe.

UTZ001>003-005> Cache Valley/Utah Portion - Central Mountains - Great Salt Lake Desert and 006-008-015>016- Mountains/Wendover/Snowville - Northern Wasatch Front/Brigham City/Ogden Bountiful - Salt Lake 517 and Toole Valleys - Southwest Utah/Cedar City/Milford - Wasatch Mountain Valleys/Huntsville/Park City/Heber - Wasatch Mountains South of I80 - West Central Utah/Delta

27 1325MST 28 2336MST 0 0 310.0K 0.00K High Wind

Very strong winds developed ahead of an approaching cold front, producing widespread areas of blowing dust, with damage primarily reported in northern Utah.

347 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

UTAH, West and Central UTZ008 Wasatch Mountains South of I80 28 0700MST 30 2359MST 0 0 0.00K 0.00K Winter Storm

A major Pacific storm set up over the western United States for several days, bringing periods of rain and snow to Utah. The cold and moist northwest flow brought almost continuous snow to the Cottonwood Canyons. Note that this episode continued into May.

VERMONT, North and Central

VTZ002-016-017 Eastern Chittenden - Eastern Franklin - Western Franklin 27 0800EST 28 1400EST 0 0 50.0K 0.00K Winter Storm

VTZ001-005 Grand Isle - Western Chittenden 27 0800EST 28 1200EST 0 0 15.0K 0.00K Winter Weather

VTZ006-018 Eastern Addison - Lamoille 27 0900EST 28 1400EST 0 0 25.0K 0.00K Winter Storm

VTZ009 Western Addison 27 1000EST 0 0 5.0K 0.00K Winter Weather 28

VTZ003-007>008 Caledonia - Essex - Orleans - Washington 27 1200EST 28 1500EST 0 0 50.0K 0.00K Winter Storm

VTZ010 Orange 27 1500EST 28 1200EST 0 0 5.0K 0.00K Winter Weather

Surface low pressure across the Ohio River Valley on April 26th slowly moved across the southern New England coast into the Gulf of Maine on the 27th and 28th. Meanwhile, a cold, strong upper atmospheric area of low pressure moved from Quebec across northern New England. This resulted in an abnormally cold, unstable and moist air mass across northern New York and northern Vermont which produced largely orthographically enhanced snowfall across the Vermont-Canadian border as well as the higher terrain of the northern Green Mountains, northern Champlain Valley and northern Connecticut River Valley. The snow began in western Vermont by mid-morning of the 27th and across eastern Vermont during the afternoon and continued overnight before it slowly diminished during the late morning and afternoon hours of the 28th. Accumulations of a heavy, wet snow ranged from 4 to 12 inches in the valleys with 10 to 24 inches above 800 feet elevation in favored northwest facing slope communities. This heavy wet snowfall resulted in numerous downed tree limbs, branches and trees which caused scattered power outages that affected over 20,000 customers. Some specific snowfall totals included; 4 inches in Cornwall (Addison county), Isle La Motte (Grand Isle county), Chelsea (Orange county), 6 inches in Swanton (Franklin county), NWS Burlington in South Burlington (Chittenden county), 8 inches in Essex Junction (Chittenden county), Stowe (Lamoille county), Newport (Orleans county) and Waterbury (Washington county) with 12 inches in South Lincoln (Addison county), Lyndonville (Caledonia county), Enosburg Falls (Franklin county), Brownington (Orleans county) and Marshfield (Washington county), 16 inches in Hardwick (Caledonia county), Sheldon Springs (Franklin county) and North Calais (Washington county), 20 inches in Walden (Caledonia county) and 24 inches in Jeffersonville (Lamoille county), Nashville and North Underhill (Chittenden county).

348 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

VIRGINIA, East Cumberland County 4 NNW Cumberland 05 1733EST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail was reported. Powhatan County 4 S Trenholm 05 1743EST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported. Caroline County 1 E Port Royal 05 1825EST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail was reported. Scattered severe thunderstorms well in advance of a cold front produced large hail across portions of central Virginia.

York County 1 E Yorktown 06 0520EST 0 0 5.00K 0.00K Lightning

Lightning struck a home and blew a hole in the roof and caused a small fire.

Isolated thunderstorm produced a lightning strike which blew a hole in a roof of a house and caused a small fire in York county. Mecklenburg County 1 NW Opie 08 2045EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Large tree limbs were downed and lawn furniture was tossed around.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Lunenburg County 3 NNW Dundas 08 2048EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Six to eight inch diameter tree was downed on Route 645. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Mecklenburg County 2 E Phillis 08 2050EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Trees were downed near the intersection of Buggs Island Road and Route 710.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Brunswick County 1 ESE Rawlings 08 2058EST 0 0 1.00K 0.00K Thunderstorm Wind (50EG)

Tree was downed at mile marker 39 along Interstate 85. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Dinwiddie County 3 NNW Mc Kenney 08 2110EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Trees and power lines were downed. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Prince George County 1 S Disputanta 08 2145EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Two large oak trees were downed on Bent Tree Lane. Scattered severe thunderstorms in advance of a cold front produced damaging winds across portions of south central Virginia. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Hanover County 3 NE Studley 26 1345EST 0 0 0.00K 0.00K Hail (0.75)

Penny size hail was reported near Route 301.

349 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

VIRGINIA, East Hanover County 2 W Old Church 26 1345EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Numerous trees were downed near Pole Green and State Highway 627 in Mechanicsville.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. King William County 1 N Manquin 26 1350EST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail was reported. Hail filled pots at a hardware store.

King William County 1 SW Midway 26 1400EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Numerous trees were downed along Route 360. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. King And Queen County 1 E Stevensville 26 1410EST 0 0 0.00K 0.00K Hail (1.75)

Golf ball size hail was reported. Westmoreland County 1 W Coles Pt 26 1715EST 0 0 2.00K 0.00K Thunderstorm Wind (50EG)

Numerous trees were downed in Coles Point. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Portsmouth (c) County 3 NW Portsmouth 26 1815EST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail was reported. Chesapeake (c) County 1 WSW Millville 26 1820EST 0 0 0.00K 0.00K Hail (0.88)

Nickel size hail was reported. Chesapeake (c) County 1 N Gilmerton 26 1823EST 0 0 0.00K 0.00K Hail (1.75)

Golf ball size hail was reported. Virginia Beach (c) County Seatack 26 1845EST 0 0 0.00K 0.00K Hail (1.00)

Quarter size hail was reported. Scattered severe thunderstorms along a cold front produced damaging winds and large hail across portions of central and eastern Virginia.

VIRGINIA, North Spotsylvania County Howison 05 1745EST 0 0 Hail (1.00)

Quarter size hail was reported about two miles southeast of Fredericksburg.

King George County 1 NW Sealston 05 1755EST 0 0 Hail (1.00)

Quarter size hail was reported near Sealston. A pressure trough at the surface combined with an upper-level disturbance to trigger showers and thunderstorms across central Virginia. There was just enough instability ahead of the pressure trough for a couple thunderstorms to produce large hail across the Virginia Piedmont.

350 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

VIRGINIA, North Arlington County 2 WNW Arlington 08 1851EST 0 0 Thunderstorm Wind (52EG)

A thunderstorm wind gust was estimated around 60 mph. Note: The estimated wind gust of 52 knots is equivalent to 60 mph. Arlington County 1 SSE South Washington 08 1856EST 0 0 Thunderstorm Wind (51MG)

A wind gust of 59 mph was recorded at KDCA. A strong area of low pressure over the Great Lakes slowly tracked to our north on the 8th. The cold front associated with the low moved into the region during the afternoon and evening hours. A moist southerly flow ahead of the front provided instability. The instability combined with the forcing from the front to trigger showers and thunderstorms during the afternoon and evening hours of the 8th. Due to strong winds aloft, some thunderstorms became severe with damaging winds. Note: The measured wind gust of 51 knots is equivalent to 59 mph. Frederick County Cross Jct 25 1635EST 0 0 Hail (1.00)

Quarter size hail was reported at Cross Junction. Augusta County 1 SE Greenville 25 1805EST 0 0 Hail (1.00)

Quarter size hail was reported at near Greenville. Augusta County 1 ENE Greenville 25 1808EST 0 0 Hail (1.00)

Quarter size hail was reported at near Greenville. Loudoun County 2 NNE Britain 25 1830EST 0 0 Hail (1.00)

Quarter size hail was reported near Lovettsville. Augusta County 1 SE Crimora 25 1835EST 0 0 Hail (1.75)

Golf ball size hail was reported on Venus Lane just south of Crimora.

Loudoun County Lucketts 25 1853EST 0 0 Hail (1.00)

Quarter size hail was reported near Lucketts. Frederick County Rock Enon Spgs 25 1911EST 0 0 Hail (1.00)

Quarter size hail was reported in Gore. Frederick County 1 E Cedar Grove 25 1926EST 0 0 Hail (1.00)

Quarter size hail was reported near Cedar Grove. Shenandoah County 1 S Mt Olive 25 1956EST 0 0 Hail (1.25)

Half dollar size hail was reported near Toms Brook. Warren County 1 W Happy Creek 25 2030EST 0 0 Hail (1.00)

Quarter size hail was reported near Front Royal. A strong upper-level low slowly tracked through the central portion of the country on the 25th. A southwest flow ahead of this system ushered in warm and humid air. A cold front dropped into the region from the northeast during the afternoon and evening hours of the 25th. The cold front combined with plenty of instability for showers and thunderstorms to develop. Due to plenty of cold air aloft, thunderstorms produced large hail.

351 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

VIRGINIA, North King George County 1 NW Comorn 26 1602EST 0 0 Hail (1.00)

Quarter size hail was reported near Fairview Beach. Orange County 1 E Burr Hill 26 1855EST 0 0 Hail (1.00)

Quarter size hail was reported near Burr Hill. A stationary boundary was located over central Virginia. Showers and thunderstorms developed along the boundary. There was enough instability just ahead of the boundary for large hail in a couple thunderstorms across the Virginia Piedmont.

VIRGINIA, Northwest Buchanan County Grundy 05 1637EST 0 0 0.00K 0.00K Hail (1.00)

Buchanan County Grundy 05 1645EST 0 0 0.00K 0.00K Hail (0.75)

After temperatures reached into the 70s, along with dew points near 60, showers and thunderstorms formed by late afternoon near a warm front.

VIRGINIA, Southwest Campbell County Lynchburg Arpt 05 1545EST 1550EST 0 0 0.00K 0.00K Hail (0.75)

Bland County Bastian 05 1553EST 1558EST 0 0 Hail (1.50)

Hail, that was up to 1.5 inches in diameter, was still on the ground three hours after the event.

Bedford County Forest 05 1555EST 1600EST 0 0 Hail (1.00)

Campbell County Lynchburg Arpt 05 1555EST 1600EST 0 0 Hail (1.00)

Campbell County Lynchburg Arpt 05 1615EST 1620EST 0 0 Hail (1.00)

One-inch diameter hail covered the ground. Giles County Narrows 05 1640EST 1645EST 0 0 Hail (1.00)

Giles County Pearisburg 05 1645EST 1650EST 0 0 Hail (1.00)

Hail covered the ground.

352 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

VIRGINIA, Southwest Giles County Pearisburg 05 1650EST 1655EST 0 0 0.00K 0.00K Hail (0.88)

Pulaski County Pulaski 05 1655EST 1700EST 0 0 0.00K 0.00K Hail (1.00)

Montgomery County Prices Fork 05 1715EST 1720EST 0 0 Hail (1.00)

Montgomery County Mc Coy 05 1720EST 1730EST 0 0 0.00K 0.00K Hail (0.88)

Montgomery County Blacksburg 05 1722EST 1730EST 0 0 Hail (1.25)

Measured on Prices Fork Road one mile north of Route 460. Buckingham County Buckingham 05 1725EST 1730EST 0 0 2.00K 0.00K Hail (1.75)

Montgomery County Prices Fork 05 1725EST 1730EST 0 0 Hail (1.00)

Montgomery County 1 SW Blacksburg Vpi Arpt 05 1725EST 0 0 0.00K 0.00K Hail (1.00)

Hail fell at the National Weather Service office in Blacksburg.

Montgomery County 1 ESE Cambria 05 1730EST 1735EST 0 0 Hail (1.00)

Hail reported at New River Valley Mall. Montgomery County 1 ESE Cambria 05 1730EST 0 0 0.00K 0.00K Hail (1.50)

Hail covered the ground. Montgomery County Blacksburg 05 1730EST 1735EST 0 0 Hail (1.00)

Hail reported in Preston Forest. Montgomery County Prices Fork 05 1735EST 1740EST 0 0 Hail (1.50)

Tazewell County 1 E Pisgah 05 1752EST 1757EST 0 0 0.00K 0.00K Hail (0.75)

353 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

VIRGINIA, Southwest Martinsville (c) County Martinsville 05 1753EST 1800EST 0 0 2.00K 0.00K Hail (1.25)

Half-dollar size hail and tree limbs reported down on Reeves road and Forest Lake Drive.

Tazewell County 1 SE Bluefield 05 1755EST 1800EST 0 0 0.00K 0.00K Hail (0.88)

Tazewell County 1 E Pocahontas 05 1800EST 1805EST 0 0 2.00K 0.00K Hail (1.75)

Bland County Sharon Spgs 05 1828EST 1835EST 0 0 0.00K Hail (1.00)

Giles County 1 NE Kire 05 1927EST 1935EST 0 0 3.00K 0.00K Hail (2.00)

Botetourt County 1 ESE Arcadia 05 2356EST 06 0005EST 0 0 0.50K 0.00K Thunderstorm Wind (50EG)

A couple of trees were reported down on Arcadia Road. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Campbell County Concord 06 0050EST 0100EST 0 0 5.00K Lightning

Structure fires from lightning strikes were reported in the Concord area.

Buckingham County 4 NW Dillwyn 06 0124EST 0130EST 0 0 0.50K Thunderstorm Wind (50EG)

Tree reported down on Route 20. Storms fired up initially in the afternoon of the 5th over the western mountains south of a front stalled out over the Ohio Valley. The primary severe mode was large hail over the mountains with some scattered wind damage in the piedmont. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Patrick County 5 SSE Stuart 08 1623EST 1628EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

One tree was blown down on Highway 631. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Patrick County 4 SSW Critz 08 1648EST 1653EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A tree was reported blown down on Highway 653. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Pittsylvania County 2 ENE Chestnut Level 08 1803EST 1808EST 0 0 0.00K 0.00K Hail (0.75)

354 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

VIRGINIA, Southwest Pittsylvania County 4 ENE Climax 08 1806EST 1815EST 0 0 0.00K 0.00K Hail (1.25)

Pittsylvania County 2 NNE Cascade 08 1810EST 1820EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A 15-inch diameter tree was blown down by thunderstorm winds on Route 857 and Tender Lane.

Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Pittsylvania County Gretna 08 1813EST 1818EST 0 0 0.00K 0.00K Hail (0.75)

Pittsylvania County Gretna 08 1833EST 1838EST 0 0 0.00K 0.00K Hail (1.00)

Henry County 1 ESE Ridgeway 08 1842EST 1850EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A tree was blow down across County Road 1013. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Henry County 1 W Mountain Vly 08 1842EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

Dispatch reported one tree blown down on Hanover Drive. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Charlotte County 2 SW Phenix 08 1925EST 1935EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A tree was brought down on Nola Road. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Halifax County Virgilina 08 1945EST 1950EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

A large tree was blown down on Highway 92. The area began the day within the warm sector of a system tracking. An upper low was lifting into the Great Lakes and pushed a strong cold front throug the area during the afternoon and evening. Isolated supercells developed ahead of the cold front in a high shear, low CAPE environment. Note: The estimated wind gust of 50 knots is equivalent to 58 mph.

Radford (c) County 2 SW Radford 25 1613EST 1615EST 0 0 0.00K 0.00K Hail (1.00)

Rockbridge County Lexington City 25 1736EST 1741EST 0 0 0.00K 0.00K Hail (1.00)

Rockbridge County 1 S Fairfield 25 1752EST 1757EST 0 0 0.00K 0.00K Hail (1.00)

An approaching cold front combined with enough afternoon heating and wind shear to generate a few hail-producing thunderstorms over parts of the New River Valley and the Rockbridge county areas on the 25th.

355 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WASHINGTON, Northeast

WAZ031-037-043 Northeast Blue Mountains - Northeast Mountains - Okanogan Valley

02 0800PST 2300PST 0 0 0.00K 0.00K Heavy Snow

A strong frontal passage brought late season heavy snow in the higher elevations of the Okanogan Valley, Northeast Washington Mountains, and the Blue Mountains. Snow accumulations from the Okanogan Valley include five inches seven miles northwest of Omak, and six inches near Malott. In the northeast Washington Mountains, 49 Degrees Ski Resort reported eight inches of snow. Over southeast Washington, Ski Bluewood reported seven inches of snow.

WAZ037 Northeast Mountains 07 2100PST 08 1700PST 0 0 0.00K 0.00K Heavy Snow

A moist and strong cold front passage brought late season heavy snow to the Northeast Washington Mountains. Bunchgrass SNOTEL picked up seven inches of snow.

WAZ033-036 Spokane Area - Washington Palouse 08 0700PST 1600PST 0 0 0.00K High Wind

Gusty winds along and behind a strong cold front passage brought high winds to the Spokane area and on the Palouse. Several trees and limbs were blown down during the storm, leading to power outages. About 1,000 homes were without power during the peak of the winds in the Spokane area. In Colfax, the high winds took down a brick encased duct.

WASHINGTON, Northwest

WAZ516 North Coast 02 0650PST 1830PST 0 0 0.00K 0.00K High Wind

WAZ508 Seattle/Bremerton Area 02 1000PST 1500PST 0 0 15.0K 0.00K Strong Wind

WAZ503-507-510- Admiralty Inlet Area - Central Coast - Everett and Vicinity - Western Whatcom 517 02 1006PST 1800PST 0 0 75.0K 0.00K High Wind

A deep low passed just NW of Tatoosh Island. High wind was recorded on the coast and in a few inland zones. Strong wind was reported in other inland zones.

WAZ519 West Slopes Central Cascades and Passes 09 1400PST 0 1 0.00K 0.00K Avalanche 10 1400PST 0 1 0.00K 0.00K Avalanche Two people were injured in two separate avalanches near Snoqualmie Pass.

Snohomish County 2 NE Everett 24 1856PST 1859PST 0 0 0.00K 0.00K Funnel Cloud

A funnel cloud was spotted between Marysville and Everett.

356 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WASHINGTON, Southeast WAZ030-502 East Slopes of the Southern Cascades - Northwest Blue Mountains

02 0545PST 1900PST 0 0 0.00K 0.00K Heavy Snow

A strong cold front and associated upper level trough brought heavy snowfall to the east slopes of the south Cacades and to the Blue Mountains. Snowfall in inches included Touchet SnoTel (6), Ski Bluewood (6), 1 miles south southwest of Snowden (6), and Trout Lake (8.5).

WAZ028 Lower Columbia Basin 08 0500PST 0900PST 0 0 0.00K 0.00K High Wind

Strong winds associated with a cold frontal passage blew through the Hanford Reservation. Peak wind gusts in miles per hour included 8 miles northwest of Richland (60) and 14 miles north northwest of Richland (58).

WAZ030 Northwest Blue Mountains 27 1500PST 28 0200PST 0 0 0.00K 0.00K Heavy Snow

A strong cold front and upper level trough brought heavy snowfall to the northern Blue Mountains. Snowfall amounts in inches included Touchet SnoTel (11), Milkshakes SnoTel (17).

WAZ024 East Columbia River Gorge 30 0630PST 0730PST 0 0 0.00K 0.00K Strong Wind

Strong winds and the resulting waves capsized an 18 foot fishing boat on Lake Celilo near Wishram. Four people were thrown off the boat. Three people drowned and 1 person suffered minor hypothermia.

WASHINGTON, Southwest

WAZ040 Southern Cascade Foothills 02 0500PST 0 0 0.00K 0.00K Heavy Snow 03 A small but moist late season storm brought heavy snowfall to the Cascades and Cascades Foothills.

WAZ020-021 South Coast - Southwest Interior 02 0515PST 1245PST 0 0 0.00K 0.00K High Wind

A particularly late-season frontal system brought strong winds to the coast and Willapa Hills.

WAZ019 West Slopes Southern Cascades and Passes 02 0600PST 03 0500PST 0 0 0.00K 0.00K Heavy Snow

A small but moist late season storm brought heavy snowfall to the Cascades and Cascades Foothills.

WEST VIRGINIA, East Berkeley County 2 SW Berkeley 08 1607EST 0 0 4.00K Thunderstorm Wind (45EG)

A roof was partially collapsed due to gusty winds in a thunderstorm. Wind gusts were estimated to be around 45 knots.

A strong area of low pressure over the Great Lakes slowly tracked to our north on the 8th. The cold front associated with the low moved into the region during the afternoon and evening hours. A moist southerly flow ahead of the front provided instability. The instability combined with the forcing from the front to trigger showers and thunderstorms during the afternoon and evening hours of the 8th. Due to strong winds aloft, an isolated thunderstorm did produce gusty winds. Note: The estimated wind gust of 45 knots is equivalent to 52 mph.

357 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WEST VIRGINIA, East Hampshire County 2 ENE Millbrook 25 1620EST 0 0 Hail (1.00)

Quarter size hail was reported near Millbrook. Jefferson County 1 NNW Kearneysville 25 1704EST 0 0 Hail (1.00)

Quarter size hail was reported on Logie Lane near Kearneysville.

Jefferson County 1 SSW Halltown 25 1748EST 0 0 Hail (1.00)

Quarter size hail was reported on Thomas Drive near Halltown.

Jefferson County 1 ENE Mt Pleasant 25 1810EST 0 0 Hail (1.00)

Quarter size hail was reported near Summit Point. Jefferson County 2 WSW Mechanicstown 25 1816EST 0 0 Hail (1.00)

Quarter size hail was reported in Charles Town. Hampshire County 2 S Delray 25 1850EST 0 0 Hail (1.00)

Quarter size hail was reported near Delray. Hampshire County 1 ENE Hooks Mills 25 1905EST 0 0 Hail (1.00)

Quarter size hail was reported about two miles west of High View.

A strong upper-level low slowly tracked through the central portion of the country on the 25th. A southwest flow ahead of this system ushered in warm and humid air. A cold front dropped into the region from the northeast during the afternoon and evening hours of the 25th. The cold front combined with plenty of instability for showers and thunderstorms to develop. Due to plenty of cold air aloft, thunderstorms produced large hail.

Hampshire County 1 E Capon Bridge 25 1915EST 2015EST 0 0 1.00K 0.00K Flash Flood

Water was flowing into a house on Tannery Road near Capon Bridge.

A strong upper-level low slowly tracked through the central portion of the country on the 25th. A southwest flow ahead of this system ushered in warm and humid air. A cold front dropped into the region from the northeast during the afternoon and evening hours of the 25th. The cold front combined with plenty of instability for showers and thunderstorms to develop. Thunderstorms dumped locally heavy amounts of rain which led to an isolated flash flooding event in Hampshire County.

Berkeley County 2 SSW Tarico Hgts 25 1942EST 0 0 Hail (1.00)

Quarter size hail was reported on Dogwood Road about two miles west of Middleway.

Jefferson County 2 NNE Middleway 25 1944EST 0 0 Hail (1.00)

Quarter size hail was near Middleway.

358 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WEST VIRGINIA, East Berkeley County 1 SSE Tarico Hgts 25 1945EST 0 0 Hail (1.00)

Quarter size hail was reported on Route 51 about two miles east of Bunker Hill. About one inch of hail was covering the ground. A strong upper-level low slowly tracked through the central portion of the country on the 25th. A southwest flow ahead of this system ushered in warm and humid air. A cold front dropped into the region from the northeast during the afternoon and evening hours of the 25th. The cold front combined with plenty of instability for showers and thunderstorms to develop. Due to plenty of cold air aloft, thunderstorms produced large hail.

WEST VIRGINIA, North Ohio County 1 ENE Wheeling 16 1418EST 0 0 75.00K 0.00K Thunderstorm Wind (62MG)

Wind gust of 71 MPH at the Wheeling Airport. Trees and power lines were reported down in Wheeling and Ohio county.

Note: The measured wind gust of 62 knots is equivalent to 71 mph. Brooke County Mc Kinleyville 16 1430EST 0 0 75.00K 0.00K Thunderstorm Wind (56EG)

Emergency management reported in local paper trees and power lines were down across much of the county.

Note: The estimated wind gust of 56 knots is equivalent to 64 mph. Hancock County 2 W Weirton 16 1430EST 1 E Weirton Jct 1435EST 0 0 75.00K 0.00K Thunderstorm Wind (56EG)

Trained spotters and law enforcement reported trees and power lines down in and around Weirton.

Severe thunderstorms were scattered across eastern Ohio, the northern West Virginia panhandle, and southwest Pennsylvania ahead of a cold front. Significant damaging winds associated with a large bow echo occured along a path from near Steubenville, Ohio to Latrobe, Pennsylvania. From this bow echo the highest recorded wind gusts at ASOS observation sites were 71 MPH at Wheeling, WV, 66 MPH at Allegheny County Airport in West Mifflin, PA, and 86 MPH at Latrobe, PA. At least 150,000 homes lost power at some point during the storms. Note: The estimated wind gust of 56 knots is equivalent to 64 mph. WEST VIRGINIA, Southeast Greenbrier County 1 SE Blake Mills 05 2110EST 2120EST 0 0 0.00K 0.00K Thunderstorm Wind (50EG)

One tree was blown down on Muddy Creek Mountain Road. Note: The estimated wind gust of 50 knots is equivalent to 58 mph. Greenbrier County 1 WSW Ronceverte 05 2115EST 2120EST 0 0 Hail (1.25)

Greenbrier County Ronceverte 05 2122EST 2130EST 0 0 0.00K 0.00K Hail (0.75)

Greenbrier County Organ Cave 05 2140EST 2150EST 0 0 2.00K Hail (1.75)

Summers County 1 S Nimitz 05 2316EST 2325EST 0 0 Hail (1.00)

359 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WEST VIRGINIA, Southeast Greenbrier County 1 NE White Sulphur Spgs 05 2320EST 2330EST 0 0 0.00K 0.00K Thunderstorm Wind (55EG)

A tree was reported down on I-64. Note: The estimated wind gust of 55 knots is equivalent to 63 mph. Summers County 2 NNE True 05 2320EST 2330EST 0 0 1.00K Thunderstorm Wind (55EG)

Large tree limbs were down along Route 20 just south of the Bluestone River bridge.

Storms fired up over the mountains south of a front stalled out over the Ohio Valley. There were reports of both large hail and scattered wind damage. Note: The estimated wind gust of 55 knots is equivalent to 63 mph.

WEST VIRGINIA, West Upshur County 1 ENE Buckhannon 05 0900EST 0 1 250.00K 0.00K Lightning 1 NNW Buckhannon Lewis Arp Lightning struck a petroleum container at a water treatment facility. An oil fire was ignited that caused considerable damage. Since there was a possibility of an explosion, the nearby area was evacuated. At the Upshur County Regional Airport, lightning struck one of the ramps. It created several holes in the asphalt. An elderly woman suffered minor injuries from being hit by lightning while looking out the screen door of her Gate Street home in Buckhannon.

Wayne County 1 E Komova 05 2000EST 0 0 0.00K 0.00K Hail (0.75)

Fayette County Mt Hope 05 2015EST 0 0 0.00K 0.00K Hail (1.25)

Lincoln County Hamlin 05 2035EST 0 0 0.00K 0.00K Hail (0.75)

Lincoln County West Hamlin 05 2035EST 0 0 0.00K 0.00K Hail (1.00)

Lincoln County West Hamlin 05 2039EST 0 0 0.00K 0.00K Hail (1.00)

Fayette County 1 NNW Quinnimont 05 2040EST 0 0 0.00K 0.00K Hail (1.75)

Golfball size hail fell at Prince. Raleigh County Sophia 05 2255EST 0 0 0.00K 0.00K Hail (1.00)

Mason County Point Pleasant 05 2259EST 0 0 0.00K 0.00K Hail (1.00)

Mason County Point Pleasant 05 2301EST 0 0 0.00K 0.00K Hail (1.25)

360 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WEST VIRGINIA, West Mason County Point Pleasant 05 2305EST 0 0 0.00K 0.00K Hail (1.00)

Raleigh County 6 E Coal City 05 2305EST 0 0 0.00K 0.00K Hail (1.00)

A few showers and thunderstorms developed during the morning hours, well ahead of a surface warm front in Kentucky and southwest Virginia. After temperatures reached into the upper 70s and lower 80s, along with dew points near 60, more numerous showers and thunderstorms formed by late afternoon. Some mid level disturbances and a westerly elevated inflow, helped the convection survive well into the night.

Harrison County Hepzibah 16 1440EST 0 0 0.00K 0.00K Hail (0.88)

Harrison County 5 SE Shinnston 16 1445EST 0 0 0.00K 0.00K Hail (0.75)

Northern West Virginnia was in the warm sector of a low pressure system centered in Canada. Ahead of the associated cold front, scattered thunderstorms formed during the early afternoon.

WISCONSIN, Northeast Brown County 2 N Preble 06 1649CST 0 0 0.50K 0.00K Lightning

A lightning strike, nearly a mile away from a power substation in Green Bay, knocked the substation offline causing 2,316 Wisconsin Public Service customers to lose power during the evening. The outage resulted in traffic lights going dark on the east side of Green Bay during the evening commute. Police officers were needed to direct traffic until crews from the Public Works Department could install stop signs at intersections.

Winnebago County 1 NW Winnebago 06 1754CST 0 0 1.00K Lightning

Lightning struck a pole that stood about 10 feet from a building used to store court records for Winnebago County. The charge traveled underground where it hit a gas line and caused a fire that damaged the building's metal siding.

Lightning from thunderstorms that moved across east-central Wisconsin caused a fire near Oshkosh (Winnebago Co.) and knocked out power on the east side of Green Bay (Brown Co.).

WIZ039-074 Brown - Southern Oconto 07 1900CST 08 0700CST 0 0 Heavy Snow

WIZ013 Northern Marinette 07 2000CST 08 0800CST 0 0 Winter Weather

Low pressure that moved across Illinois into lower Michigan produced rain, and later snow, in northeast Wisconsin. The rain quickly changed to snow when the winds shifted, bringing much colder air from Canada into the the area. Snowfall totals were in the 4 to 7 inch range across several counties. The highest totals included 7.0 inches in Suring (southern Oconto Co.) and 6.0 inches at both Suamico (Brown Co.) and the west side of De Pere (Brown Co.).

Lincoln County 3 ENE Wisconsin Dam 11 1300CST 1305CST 0 0 0.60K 0.00K Dust Devil

361 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WISCONSIN, Northeast

A dust devil formed during the afternoon on a sunny, mild day, and moved through the backyard of a family home. The dust devil picked up a trampoline, threw it 10 feet in the air, and smashed it into the side of a garage. The whirlwind continued through the yard and picked up burning corn stalks and paper from a fire barrel, swirling the debris around. The dust devil crossed a nearby road into a field and dissipated.

Sunshine and light winds lead to the development of a relatively strong dust devil in northern Lincoln County near Gilbert.

WIZ005-010-011 Forest - Oneida - Vilas 13 0600CST 30 2359CST 0 0 Drought

Conditions across parts of north-central Wisconsin were designated severe drought (D2). This was due to the lack of rainfall, combined with above normal temperatures and near-record to record low stream flow levels in that area.

WIZ012 Florence 20 0600CST 30 2359CST 0 0 Drought

Little rainfall, warmer than normal temperatures and low stream flow levels caused severe drought (D2) conditions to expand across northern Wisconsin. Oconto County 2 SW Stiles 20 1400CST 1401CST 0 0 0.50K 0.00K Dust Devil

At around 3 pm CDT, a dust devil formed near the Machickanee Flowage on the southern branch of the Oconto River near Stiles. The whirlwind moved onto the water for a brief time, lifting the back of a pontoon boat and sucking the life jackets into the air. It then lifted several sections of the end of the dock 40 feet into the air, spinning the debris around, finally depositing everything into the water. A dust devil moved along a dock on the southern branch of the Oconto River and did damage to the dock and a nearby pontoon boat. Winnebago County 2 S Eureka 30 1805CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A couple of trees were blown down near the intersection of Highway 91 and County Road E.

Storms formed across Wisconsin ahead of a cold front. A storm that produced a tornado in Green Lake County moved into Winnebago County and produced a strong wind gust. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

WISCONSIN, Northwest

WIZ001>004-007> Ashland - Bayfield - Douglas - Iron - Price - Sawyer - Washburn 009 01 0000CST 30 2359CST 0 0 0.00K Drought

Precipitation was some 25 to 50 percent of normal for the month of April, allowing for severe (D2) drought conditions to expand across northwest Wisconsin. By month's end, the drought covered Ashland, Iron, Bayfield, Sawyer, Washburn, eastern Douglas, and northern Price counties.

WISCONSIN, Southeast

WIZ069 Rock 02 0900CST 1600CST 0 1 1.0K 0.00K Strong Wind

Strong southwest winds, gusting to an estimated 43 knots (50 mph) pushed a motorcycle over at the intersection on Interstate 39/90 and Hart Rd. The diver was injured, and his cycle sustained minor damage. This occurred about 4 miles northeast of Beloit. The winds about 5000 feet above ground level were about 40 to 50 knots at the time of the accident. Daytime heating and mixing of the lower atmosphere allowed some of the higher momentum air to mix down to the surface.

362 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WISCONSIN, Southeast Lafayette County Shullsburg 05 2220CST 0 0 0.00K 0.00K Hail (0.88)

Shullsburg Fire Dept. reported 7/8 hail. Dodge County Reeseville 06 1955CST 0 0 0.00K 0.00K Hail (0.75)

Law enforcement reported 3/4 hail. Dodge County Lowell 06 1959CST 0 0 0.00K 0.00K Hail (0.88)

A trained spotter reported 7/8 hail. A complex synoptic enviornment set up in southern Wisconsin during the overnight hours and early morning of 5-6 April. A warm front stalled just south of the Wisconsin-Illinois border. Overnight on 5 April, elevated convection was driven by a vigorous LLJ bringing a significant risk of damaging hail and strong winds. During the morning of 6 April, remnants of an MCS tracked over the same southern area of Wisconsin bringing another round of strong thunderstorms just north of the surface warm front. Finally, during the evening, deep shear and elevated instability lead to an narrow corridor in which strong thunderstorms were able to develop and race across southern Wisconsin yet again. The main threats were large hail and strong winds. Green Lake County 2 N Green Lake 30 1800CST 0 0 0.00K 0.00K Hail (1.00)

Green Lake County 3 SSE Berlin 30 1800CST 1802CST 2 100 0 0 130.00K 0.00K Tornado (EF1)

A weak tornado spun up southeast of Berlin near the intersection of CTH AA and Forest Ridge Rd. The tornado moved northeast and disappated near the intersection of CTH V and White Ridge Rd. The average path width was 60 yards. A damage survey noted seven high tension wood power poles were snapped. A few trees were uprooted including one that fell on and damaged a car. There was minor roof damage to a barn. Several small barrels were thrown over 100 yards into a nearby field. A portable toilet was moved about 50 feet. Near the end of the track, a TV antenna was snapped and there was damage to the facia of a home. A small shed was destroyed and a couch that was outdoors was thrown about 75 feet. The Green Lake County Emergency Manager estimated property damage at $30,000. Additionally, it is estimated that the power-pole and line replacement cost was about $100,000.

Marquette County 2 SE Glenoak 30 1815CST 1819CST 2.97 50 0 0 0.00K 0.00K Tornado (EF0)

This weak tornado had 3 segments - Marquette County, Green Lake County, and a final path back in Marquette County. The first segment, described here, spun up southeast of Glen Oak near the intersection of Hwy 22 and 16th Ct., and moved northeast. Several trees had broken branches or were parrtially uprooted. The damage indicator used to rate this segment was: DI 27 (TH), DOD 3, 75-80 mph. This tornado exited Marquette County and went into Green Lake County, about a mile north of where the Fox River exits Marquette County. The average path width was 30 yards. The responsible thunderstorm was the northern of two parallel-moving thunderstorms with embedded circulations. Refer to the Green Lake County segment extension and the final segment that occurred in Marquette County. This tornado ultimately ended at 1824 CST in Marquette County.

Marquette County 4 SE Glenoak 30 1815CST 1817CST 2.05 50 0 0 0.00K 0.00K Tornado (EF0)

This tornado segment is the 1st of a 2-segment, weak, tornado that spun up about 4 miles southeast of Glen Oak in Marquette County. It moved northeast into Green Lake County where it eventually dissipated on the north shore of Pukaway Lake. Specifically, it spun up about 1/2 mile southeast of the intersection of CTY B and 16th Rd. and exited Marquette County roughly 2 miles to the northeast in the middle of the Grand River. Several trees were damaged or partially uprooted. There was no other structural damage. The average path width was 35 yards. The EF0 rating was based on DI 27 (TH), and DOD 2, 65-70 mph, after a NWS survey. The responsible thunderstorm was the sourthern of two parallel-moving storms with weak circulations, each moving northeast. Refer to the second segment that continue into Green Lake County.

363 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WISCONSIN, Southeast Green Lake County 6 NNW Dalton 30 1817CST 5 SSW Princeton 1823CST 6.15 50 0 0 0.00K 0.00K Tornado (EF0)

This tornado segment in Green Lake County was the 2nd of a 2-segment tornado that stared in Marquette County at 1815 CST. It entered Green Lake County about 6 miles northwest of Dalton at the mid-point of the wide part of the Grand River and continued to move northeast. It crossed Pukaway Lake and came ashore just east of the corner of Marquette County near a boat launch site. A few trees had broken branches or were partially uprooted. The average path width was 35 yards. The EF0 rating was based on DI 27 (TH), and DOD 2, 65-70 mph, after a NWS survey. The responsible thunderstorm was the sourthern of two parallel moving storms with embedded circulations. The northern storm also produced a weak tornado.

Green Lake County 7 WNW Kingston 30 1819CST 1820CST 1.1 50 0 0 0.00K 0.00K Tornado (EF0)

This Green Lake County tornado segment was the 2nd of a 3-segment tornado that initially started in Marquette County. This Green Lake County segment started about 1 mile north of where the Fox River enters Green Lake County, and moved northeast. A survey of this segment was not possible due to swamp conditions along the path. However, ths tornado was seen by people near Princeton in Green . It is assumed that there was minor vegetative damage along this 2nd segment. The average path width in this 2nd segment was estimated at 30 yards. The damage indicator used to rate this segment was: DI 27 (TH), DOD 3, 75-80 mph. This tornado exited Green Lake County over the far northwest corner of Pukaway Lake and re-entered Marquette County and eventually dissipated near Fern Dr. and 22nd Ln at 1824 CST. Refer to the two Marquette County segments for other details.

Marquette County 5 ESE Montello 30 1820CST 7 SSE Germania 1824CST 3.18 50 0 0 0.00K 0.00K Tornado (EF0)

This Marquette County tornado segment was the 3rd of a 3-segment tornado that initially started in Marquette County at 1815 CST and then crossed Green Lake County and re-entered Marquette County. It re-entered just southwest of the intersection of CTH C and 20th Ct. and moved northeast. Several trees had broken branches or were partially uprooted. It ended near Fern Dr. and 22nd Ln at 1824 CST. The average path width in this 3rd segment was estimated at 30 yards. The damage indicator used to rate this segment was: DI 27 (TH), DOD 3, 75-80 mph. Refer to the associated Green Lake County and Marquette County segments for other details. Parts of southeast Wisconsin lay within the warm sector of a mid-latitude cyclone for much of the day with persistent southerly winds blowing ahead of a cold front draped from western Iowa through the Texas panhandle. As the front pushed across southwest Wisconsin, moderate CAPE and strong shear were present and two lines of thunderstorms developed, with the second of these lines producing three weak tornadoes. One inch diameter hail was also reported in association with the second line of thunderstorms.

WISCONSIN, Southwest

WIZ034 Jackson 01 1515CST 2200CST 0 0 0.00K 0.00K Wildfire

A slow moving area of low pressure across southern Canada created several days of breezy and dry conditions across western Wisconsin. Average sustained wind speeds from March 30th through April 1st were 10 to 15 mph with the minimum relative humidity between 25 and 35 percent as reported by the automated weather observing equipment at both La Crosse and Sparta. These conditions allowed a large grass fire to develop just east of Melrose in southwest Jackson county. Local fire officials estimate the fire burned approximately 30 acres but no structures were damaged or injuries sustained. At one point, the flames were estimated to be shooting 17 feet into the air.

WIZ042 Monroe 14 1500CST 15 0100CST 0 0 0.00K 0.00K Wildfire

A nearly stationary area of high pressure from Hudson Bay Canada into the northeastern section of the United States produced several days of breezy and dry conditions across western Wisconsin. The automated weather observing equipment at Sparta recorded average sustained speeds around 10 mph out of the east to southeast on both the 13th and 14th of April. The minimum relative humidity averaged less than 25 percent from the 9th of April through the 14th. These conditions set the stage for a prescribed burn to get out of control and torch 97 acres northwest of Sparta in rural western Monroe county. No structures were damaged or injuries sustained from this fire.

364 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WISCONSIN, Southwest WIZ033 Trempealeau 17 1630CST 1930CST 1 2 0.00K 0.00K Wildfire

A tractor ignited a cornfield south of Osseo in Trempealeau County in the early evening hours of April 17th. The wildfire fatally injured one individual and injured two others. Winds had increased to 15 mph with gusts up to 25 mph in the area that afternoon and evening. This combined with dry weather conditions the preceding two days enabled the wildfire to become uncontrollable. M83OU

WIZ041-053 La Crosse - Vernon 19 1236CST 1610CST 0 0 3.0K 0.00K Wildfire

A high pressure system centered over the Upper Midwest the previous two days produced very dry conditions over the area. This allowed the minimum relative humidity to fall into the 25 to 35 percent range, as reported by the automated weather observing equipment at the La Crosse and Viroqua airports in the afternoon hours of April 18th and 19th. The combination of the dry conditions and local wind effects enabled a control burn to become uncontrollable on the La Crosse County and Vernon County line on April 19th. The wildfire burned around 10 acres of grass.

La Crosse County 1 NW West La Crosse 30 1244CST 0 0 0.00K 0.00K Hail (1.00)

Amateur radio operators estimated quarter size hail on French Island in La Crosse.

La Crosse County 1 WSW Holmen 30 1247CST 0 0 0.00K 0.00K Hail (0.75)

A National Weather Service employee estimated three quarter inch hail in Holmen.

La Crosse County 1 NE Onalaska 30 1250CST 0 0 0.00K 0.00K Hail (1.00)

A trained spotter estimated one inch size hail in Onalaska. Jackson County Merrillan 30 1328CST 0 0 0.00K 0.00K Hail (0.75)

A trained spotter estimated three quarter inch hail in Merrillan.

Taylor County 1 NNE Medford 30 1357CST 0 0 2.50K 0.00K Thunderstorm Wind (61EG)

Law enforcement reported trees down in the city of Medford. Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Taylor County 1 N Medford 30 1400CST 0 0 0.00K 0.00K Thunderstorm Wind (61EG)

Amateur radio operators estimated a 70 mph wind gust in Medford.

Note: The estimated wind gust of 61 knots is equivalent to 70 mph. Taylor County 3 NW Rib Lake 30 1408CST 0 0 0.00K 0.00K Thunderstorm Wind (52EG)

A cooperative observer estimated a 60 mph wind gust four miles east of Westboro.

A cold front moved across western Wisconsin during the afternoon hours of April 30th. Severe thunderstorms developed along the front and produced hail up to the size of a quarter in La Crosse County and wind gusts up to 70 miles per hour in Taylor County. Note: The estimated wind gust of 52 knots is equivalent to 60 mph.

365 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WYOMING, Central and West

WYZ009-015-017> Bighorn Mountains Southeast - Green Mountains & Rattlesnake Range - Lander Foothills - Northeast 019 Johnson County - Wind River Basin - Wind River Mountains East 01 0000MST 02 1100MST 0 0 0.00K 0.00K Winter Storm

Upslope enhanced snowfall associated with a strong Pacific trough of low pressure tapered off by early April 2. Final snow totals reached 12 to 16 inches in the Bighorn and Wind River mountains. Snowfall of six to eight inches was reported south of Riverton and over Beaver Rim to around Sweetwater Station. Up to 13 inches of snow fell in the Lander Foothills. More information on the beginning of this event is contained in the March 2010 Storm Data publication.

WYZ019 Green Mountains & Rattlesnake Range 02 2210MST 03 1450MST 0 0 0.00K 0.00K High Wind

WYZ020-030 East Sweetwater County - Natrona County Lower Elevations 03 1000MST 1225MST 0 0 0.00K 0.00K High Wind

Favorable jet stream dynamics coupled with a cold frontal passage brought high winds to south-central Wyoming. Higher elevations near US Highway 287 experienced gusts to 69 mph. Sustained wind speeds of 40 mph or more were common along Interstate 80 through eastern Sweetwater County and along state highway 220 in southern Natrona County.

WYZ015-023-025> South Lincoln County - Star Valley - Upper Green River Basin - Upper Green River Basin Foothills - 027 Wind River Mountains East 04 2300MST 07 0615MST 0 0 0.00K 0.00K Winter Storm

WYZ012-014-019- Casper Mountain - Green Mountains & Rattlesnake Range - Salt River & Wyoming Ranges - Teton & 022-024 Gros Ventre Mountains - Wind River Mountains West 05 0100MST 06 1200MST 0 0 0.00K 0.00K Winter Storm

WYZ030 East Sweetwater County 06 0200MST 1645MST 0 0 0.00K 0.00K High Wind

WYZ009-017-020 Bighorn Mountains Southeast - Lander Foothills - Natrona County Lower Elevations - Wind River Basin

06 0330MST 07 0400MST 0 0 0.00K 0.00K Winter Storm

WYZ028-029 Flaming Gorge - Rock Springs & Green River 06 1400MST 1430MST 0 0 0.00K 0.00K High Wind

A vigorous Pacific storm moved through the Intermountain West. A strong jet stream provided a fetch of Pacific moisture and dynamic lift. This system brought heavy snow to central Wyoming and high winds to the southwest part of the state. Up to two feet of snow fell over the eastern slopes of the Wind River Mountains and winds gusting to 89 mph were recorded in the Salt River and Wyoming ranges.

WYZ019-020 Green Mountains & Rattlesnake Range - Natrona County Lower Elevations

13 1000MST 1430MST 0 0 0.00K 0.00K High Wind

366 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WYOMING, Central and West

An intense upper level low west of Wyoming provided a favorable pressure gradient for southwest wind to blow in a wind- prone corridor in central Wyoming. Sustained speeds of 40 mph with gusts around 60 mph were common for several midday hours. An automated sensor near Hiland recorded a peak gust to 61 mph shortly before 1200MST, while a station north of Casper topped out at 59 mph less than one hour later. Along US Highway 287 in southern Fremont County, sustained speeds of 40 to 45 mph were observed over Beaver Rim.

WYZ010-011 Northeast Johnson County - Southeast Johnson County 23 1101MST 1414MST 0 0 High Wind

Johnson County experienced a strong northerly wind in the wake of a large upper level low pressure system. Gusts to 61 mph were observed at Johnson County Airport in Buffalo. Stronger gusts to 66 mph were recorded by a weather station along Interstate 25 south of Buffalo.

WYZ010-018 Lander Foothills - Northeast Johnson County 28 0046MST 1335MST 0 0 0.00K 0.00K High Wind

A strong storm system and associated cold front brought high winds to the Lander Foothills and northern Johnson County. A NWS employee measured a 64 mph wind gust southwest of Lander. The ASOS at Johnson County Airport in Buffalo recorded gusts of 59 and 65 mph.

WYZ004-010 North Big Horn Basin - Northeast Johnson County 30 0410MST 0655MST 0 0 0.00K 0.00K High Wind

A tight pressure gradient resulted as two areas of low pressure rotated around each other in eastern Montana. Northwest wind of 40 mph occurred over an extended period in northern Johnson County. In the Big Horn Basin, sustained wind of 40 mph was recorded over a two hour period by the AWOS at Powell Municipal Airport.

WYOMING, North Central

WYZ098 Northeast Bighorn Mountains 01 0000MST 02 0300MST 0 0 0.00K 0.00K Heavy Snow

An early Spring storm system moved across the Northern Rockies bringing widespread precipitation to the Billings Forecast Area. The precipitation began as a mix of rain and snow but quickly changed to all snow during the early morning hours across the Big Horn Mountains. Icy and snow covered roads were common during the late night and early morning hours of the 1st.

29 0600MST 30 2200MST 0 0 0.00K 0.00K Heavy Snow

A strong and slow moving Spring storm system moved across Southern Montana and Northern Wyoming. This storm brought heavy snow to the Big Horn Mountains.

WYZ099 Sheridan Foothills 30 2140MST 2300MST 0 0 High Wind

A powerful spring storm system and surface low over Northeast Montana brought high winds across Sheridan County in Northern Wyoming on the 30th.

WYOMING, Northeast

WYZ054>057 Northern Campbell - South Campbell - Western Crook - Wyoming Black Hills

01 1500MST 02 1200MST 0 0 0.00K 0.00K Winter Storm

A strong spring storm brought heavy snow to much of northeastern Wyoming. Snow amounts of six to 12 inches were common across Campbell and Crook Counties. Accumulations to 18 inches were reported over northern Campbell County and the Wyoming Black Hills.

367 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WYOMING, Northeast 13 1200MST 1600MST 0 0 0.00K 0.00K High Wind

WYZ055-058 South Campbell - Weston 13 1300MST 1700MST 0 0 0.00K 0.00K High Wind

A tight pressure gradient produced strong southwest winds across portions of northeastern Wyoming. Wind gusts over 60 mph were recorded in Campbell and southwestern Weston Counties.

WYOMING, Southeast

WYZ109-115 Central Carbon County - Laramie Valley 01 0200MST 02 0500MST 0 0 Heavy Snow

An upper level disturbance moved over the area during the 1st and 2nd of the month. Isolated areas of greater than six inches of snowfall were reported.

WYZ110 North Snowy Range Foothills 02 2321MST 03 1821MST 0 0 High Wind

WYZ101-103-106- Central Laramie Range And Southwest Platte County - Converse County Lower Elevations - 108-117 Ferris/seminoe/shirley Mountains - Goshen County - North Laramie Range - South Laramie Range Foothills 03 0900MST 1821MST 0 0 High Wind

A Pacific cold front was expected to move into western Wyoming the morning of April 3rd, subsequently tightening of the surface pressure gradient across southeast Wyoming. This increasing pressure gradient combined with strong winds aloft resulted in very strong west to southwest winds across southeast Wyoming.

WYZ102-109-112- Central Carbon County - Niobrara County - North Laramie Range - Sierra Madre Range - Snowy Range 114 05 1100MST 06 2133MST 0 0 Heavy Snow

A slow moving storm system moved over the area on 5th and 6th. The Sierra Madre and Snowy mountain ranges received the most snowfall, while only a few isolated locations in the lower elevations received heavy snow.

WYZ106-110-116- Central Laramie Range And Southwest Platte County - North Snowy Range Foothills - South Laramie 117 Range - South Laramie Range Foothills 06 0801MST 1615MST 0 0 High Wind

As the system that produced snowfall across the area on the 5th and 6th moved eastward out of the air, a tight pressure gradient on the backside of the system produced strong winds across the area. Most of the high winds were located along and near the Laramie Range.

WYZ103-106-117 Central Laramie Range And Southwest Platte County - North Laramie Range - South Laramie Range Foothills 13 1100MST 1655MST 0 0 High Wind

As a low pressure moves into the area with an associated cold front, strong winds developed ahead of and behind the front.

368 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

WYOMING, Southeast Platte County 2 SE Diamond 22 1700MST 2101MST 0 0 Heavy Rain

Burlington Northern Railroad reported the tracks washed out from high waters on the Spring and Chugwater creeks due to the heavy rainfall.

WYZ103-112-114> Laramie Valley - North Laramie Range - Sierra Madre Range - Snowy Range - South Laramie Range 116 22 1700MST 24 0500MST 0 0 Heavy Snow

Laramie County 1 S Cheyenne 22 1729MST 2201MST 0 0 Heavy Rain

A rainfall measurement of 1.89 inches was reported.

WYZ101 Converse County Lower Elevations 23 1404MST 24 0500MST 0 0 High Wind

WYZ117-118 Central Laramie County - South Laramie Range Foothills 23 1736MST 24 0600MST 0 0 Heavy Snow

A slow moving winter storm system progressed eastward through the area. Due to the rather warm conditions ahead of the system, the precipitation changed from rain to snow. Heavy rainfall on the already saturated ground from the plentiful seasonal snowfall and slow moving storms caused localized flooding for parts of the area. High winds also accompanied the rain and snow. The combination of high winds and heavy snow caused locations in and near Bosler, Laramie and Chugwater, in southern Platte and central Albany county, to lose power. The only life lost from this storm 14 calves.

LAKE ST. CLAIR

LCZ460 Lake St. Clair (US Portion) 06 1145EST 0 0 0.00K 0.00K Marine Hail A few thunderstorms moved into Lake St. Clair producing large hail.

GULF OF MEXICO

GMZ031 Florida Bay 10 1736EST 0 0 0.00K 0.00K Marine Thunderstorm Wind Isolated thunderstorms developed and moved toward the west-southwest across Florida Bay, producing gale-force wind gusts in waters near mainland south Florida.

GMZ054 West End of the 7 Mile Bridge to Key West out 20nm 11 1641EST 0 0 0.00K 0.00K Marine Thunderstorm Wind A line of showers and embedded thunderstorms moved south from Florida Bay and the Gulf of Mexico waters, bringing isolated gale force wind gusts to portions of the Lower Florida Keys.

GMZ053 Craig Key to the West End of the 7 Mile Bridge out 20nm 12 2058EST 0 0 0.00K 0.00K Marine Thunderstorm Wind Isolated thunderstorms developed in the nearshore Atlantic waters along the Middle and Lower Keys. Isolated gale force wind gusts were measured in the waters south of Marathon.

GMZ052-053 Craig Key to the West End of the 7 Mile Bridge out 20nm - Ocean Reef to Craig Key FL out 20nm

22 1022EST 1126EST 0 0 0.00K 0.00K Waterspout

A small cluster of moderate intensity rain showers developed in the nearshore Atlantic waters along the Upper Florida Keys. Two waterspouts were observed.

369 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GULF OF MEXICO GMZ230 Corpus Christi to Baffin Bay 22 2338CST 23 0100CST 0 0 0.00K 0.00K Marine High Wind

Precipitation, from a decaying and elevated shower over Corpus Christi, fell through a strong low-level jet beneath the cap, and induced a small-scale wake low. Winds briefly gusted between 60 and 70 mph, localized to just the central and south side of Corpus Christi and to around Port Aransas.

GULF OF MEXICO

GMZ350 Freeport to Matagorda Ship Channel out 20nm 23 1154CST 0 0 0.01K 0.00K Marine Strong Wind 24 0012CST 0 0 0.01K 0.00K Marine Strong Wind

GMZ350-355 Freeport to Matagorda Ship Channel out 20nm - High Island to Freeport TX out 20nm

24 0018CST 0048CST 0 0 0.04K 0.00K Marine Strong Wind

24 0055CST 0 0 0.01K 0.00K Marine High Wind 24 0100CST 0 0 20.0K 0.00K Marine High Wind

GMZ350-355 Freeport to Matagorda Ship Channel out 20nm - High Island to Freeport TX out 20nm

24 0106CST 0124CST 0 0 0.03K 0.00K Marine Strong Wind

A series of five gravity waves moved along the Upper Texas Coast early in the morning. The second gravity wave caused damaging wind gusts on Galveston Island.

GULF OF MEXICO

GMZ450 Cameron LA to High Island TX out 20nm 24 0139CST 0 0 0.00K 0.00K Marine High Wind A powerful upper level storm system that moved across the Gulf Coast states produced strong southeasterly winds across the northwestern Gulf of Mexico during the early morning hours of April 24. Several weather stations along the coast and offshore measured winds gusts between 40 and 60 mph.

GULF OF MEXICO

GMZ330-355 High Island to Freeport TX out 20nm - Matagorda Bay 24 0200CST 0500CST 0 0 0.04K 0.00K Marine Strong Wind

A series of five gravity waves moved along the Upper Texas Coast early in the morning. The second gravity wave caused damaging wind gusts on Galveston Island.

GULF OF MEXICO

GMZ830-850-853 Englewood to Tarpon Springs FL out 20nm - Tampa Bay - Tarpon Springs to Suwannee River FL out 20nm 25 1224EST 2342EST 0 0 0.00K 0.00K Marine Thunderstorm Wind

GMZ830-856 Bonita Beach to Englewood FL out 20nm - Tampa Bay 26 0000EST 0548EST 0 0 0.00K 0.00K Marine Thunderstorm Wind

A strong cold front moved through the area bringing thunderstorms with strong wind gusts across the coastal waters.

370 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

GULF OF MEXICO GMZ031-052 Florida Bay - Ocean Reef to Craig Key FL out 20nm 26 1100EST 1301EST 0 0 0.00K 0.00K Marine Thunderstorm Wind

A strong squall line moved rapidly east across the Gulf of Mexico and Florida Bay waters, producing gale force wind gusts across the nearshore waters along the Upper Florida Keys.

ATLANTIC, Caribbean Sea and Tropical Atlantic

AMZ650 Jupiter Inlet to Deerfield Beach FL out 20nm 11 1240EST 1241EST 0 0 0.00K 0.00K Waterspout

A waterspout was reported by the public from Delray Beach.

ATLANTIC, Caribbean Sea and Tropical Atlantic

AMZ350 South Santee River to Edisto Beach SC out 20nm 21 0824EST 0827EST 0 0 0.00K 0.00K Waterspout

A weak convergent boundary over the South Carolina near shore waters resulted in conditions favorable for waterspout development.

ATLANTIC, Caribbean Sea and Tropical Atlantic

AMZ472 Fernandina Beach to St. Augustine FL 20 to 60nm 25 1825EST 0 0 0.00K 0.00K Marine Thunderstorm Wind A strong convective wind gust was measured at the buoy 43 NM east of St. Augustine.

ATLANTIC, Caribbean Sea and Tropical Atlantic

AMZ550-552 Flagler Beach to Cocoa Beach FL out 20nm - Volusia-Brevard County Line to Sebastian Inlet 0 to 20nm

25 1847EST 1918EST 0 0 0.00K 0.00K Marine Thunderstorm Wind

An upper level disturbance passed over the region during the evening and invigorated a pre-frontal line of convection as it dropped southeast across east central Florida. Several of the storms became strong and produced wind gusts of 35 to near 50 knots as they spread onshore the coastline of Volusia, Brevard, Indian River, St. Lucie and Martin Counties.

AMZ555 Cocoa Beach to Jupiter Inlet FL out 20nm 26 0205EST 0 0 0.00K 0.00K Marine Thunderstorm Wind Following the evening storms of April 25, a secondary upper level disturbance trigger another round of strong thunderstorms which moved off the peninsula and across the near shore waters during the early morning hours of April 26. Several of the storms produced coastal wind gusts over 40 knots.

ATLANTIC, Caribbean Sea and Tropical Atlantic

AMZ630-651 Biscayne Bay - Deerfield Beach to Ocean Reef FL 26 0935EST 1040EST 0 0 0.00K 0.00K Marine Thunderstorm Wind

Thunderstorms associated with a squall line moved from the mainland into the Atlantic during the morning of the 26th, producing high wind gusts.

371 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

ATLANTIC, North

ANZ632 Chesapeake Bay New Point Comfort to Cape Henry VA 06 0448EST 0 0 0.00K 0.00K Marine Thunderstorm Wind Scattered thunderstorms well in advance of a cold front produced gusty winds over portions of the Chesapeake Bay.

ATLANTIC, North

ANZ531-535>536- Chesapeake Bay Poole`s Island to Sandy Point MD - Chesapeake Bay Sandy Point to North Beach MD - 543 Tangier Sound And The Inland Waters Surrounding Bloodsworth Island - Tidal Potomac Indian Head to Cobb Island MD - Tidal Potomac Key Bridge to Indian Head MD 08 1626EST 2139EST 0 0 Marine Thunderstorm Wind

A strong area of low pressure over the Great Lakes slowly tracked to our north on the 8th. The cold front associated with the low moved into the region during the afternoon and evening hours. A moist southerly flow ahead of the front provided instability. The instability combined with the forcing from the front to trigger showers and thunderstorms during the afternoon and evening hours of the 8th. Due to strong winds aloft, some thunderstorms produced gusty winds over the Tidal Potomac and Chesapeake Bay.

ATLANTIC, North

ANZ658 NC-VA border to Currituck Beach Light out 20nm 09 0524EST 0 0 0.00K 0.00K Marine Thunderstorm Wind Isolated strong thunderstorm associated with a cold front produced gusty winds over portions of the North Carolina Coastal Waters.

ATLANTIC, North

ANZ453 Great Egg Inlet to Cape May NJ out 20nm 16 1818EST 0 0 0.00K 0.00K Marine Thunderstorm Wind A strong cold frontal passage overnight on the 16th helped trigger strong thunderstorms across the southern area waters during the evening of the 16th.

ATLANTIC, North

ANZ335 Long Island Sound West of New Haven CT to Port Jefferson NY 22 1427EST 0 0 0.00K Marine Thunderstorm Wind An approaching cold front sparked scattered thunderstorms across the Tri-State Region.

ATLANTIC, North

ANZ531 Chesapeake Bay Poole`s Island to Sandy Point MD 25 1940EST 0 0 Marine Hail A strong upper-level low slowly tracked through the central portion of the country on the 25th. A southwest flow ahead of this system ushered in warm and humid air. A cold front dropped into the region from the northeast during the afternoon and evening hours of the 25th. The cold front combined with plenty of instability for showers and thunderstorms to develop. An isolated thunderstorm did produce large hail over the Chesapeake Bay.

ANZ536 Tidal Potomac Indian Head to Cobb Island MD 26 1626EST 0 0 Marine Thunderstorm Wind 26 1648EST 1651EST 0 0 Waterspout

ANZ543 Tangier Sound And The Inland Waters Surrounding Bloodsworth Island

26 2139EST 0 0 Marine Thunderstorm Wind A stationary boundary was located over the waters. Showers and thunderstorms developed along the boundary. There was enough instability just ahead of the boundary for gusty winds over the lower Tidal Potomac and Chesapeake Bay.

372 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

LAKE MICHIGAN

LMZ646 Wind Point Light WI to Winthrop Harbor IL 05 2130CST 0 0 0.00K 0.00K Marine Thunderstorm Wind An isolated but strong thunderstorm moved over the nearshore waters of Lake Michigan producing isolated strong wind gusts.

LAKE MICHIGAN

LMZ741 Wilmette Harbor to Meigs Field IL 05 2210CST 0 0 0.00K 0.00K Marine Thunderstorm Wind Strong to severe thunderstorms moved across southern Lake Michigan during the late evening hours of April 5th into the early morning hours of April 6th.

LAKE MICHIGAN

LMZ844-845 South Haven to Holland MI - St. Joseph to South Haven MI 06 0025EST 0 0 Marine Thunderstorm Wind Strong thunderstorms that developed rapidly during the late evening hours of April 5th produced a peak wind gust to 51 mph at the South Haven Coastal Observation Station.

LAKE MICHIGAN

LMZ643-644 Point Washington to North Point Light WI - Sheboygan to Point Washington WI

06 2030CST 2057CST 0 0 0.00K 0.00K Marine Thunderstorm Wind

A small line of strong thunderstorms affected the nearshore waters of Lake Michigan from Sheboygan to north of North Point Lighthouse, caused thunderstorm wind gusts greater than 33 knots.

LAKE MICHIGAN

LMZ542 Sturgeon Bay to Two Rivers WI 15 1600CST 0 0 Marine Thunderstorm Wind A line of thunderstorms ahead of an approaching cold front produced sustained winds of 25 knots with gusts to 37 knots at the Algoma Marina.

LAKE MICHIGAN

LMZ741 Wilmette Harbor to Meigs Field IL 29 1620CST 1625CST 0 0 0.00K 0.00K Marine High Wind

Strong winds developed across southern Lake Michigan during the late morning and early afternoon of April 29th. Frequent gusts were between 40 knots and 45 knots with a peak gust of 51 knots measured at the Harrison Dever Crib.

30 2155CST 0 0 0.00K 0.00K Marine Thunderstorm Wind Strong thunderstorms moved across parts of southern Lake Michigan during the late evening hours of April 30th.

LAKE ONTARIO

LOZ042 Niagara River to Thirty Mile Point NY 07 0910EST 0 0 0.00K Marine Thunderstorm Wind A cold front crossed the region during the morning. A thunderstorm accompanying the front produced a wind gust measured to 43 knots at the Youngstown Coast Guard Station.

373 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

LAKE ERIE

LEZ040-041 Dunkirk to Buffalo NY - Ripley to Dunkirk NY 06 1426EST 0 0 0.00K Marine Hail A warm front slowly lifted north across the region during the early afternoon. A thunderstorm accompanying the front produced three-quarter inch hail at Dunkirk.

VIRGIN ISLANDS

VIZ002 St. Croix 14 1330AST 2330AST 0 0 0.00K 0.00K Wildfire

While April generally marks the transition into rainy season across the local islands, Saint Croix reported below normal precipitation during the month of April.

AMERICAN SAMOA, Tutuila County 5 ENE Pago Pago 16 1200SST 1430SST 0 0 0.00K Heavy Rain

A 100 feet long-boat capsized after 12 noon during the American Samoa Flag Day long boat race. Heavy rainfall associated with gusty winds generated an additional 1 to 2 foot swell on top of combined seas of 5 to 7 feet. No injury or fatality reported.

Tutuila County 5 ENE Pago Pago 17 1230SST 1400SST 0 0 0.00K Heavy Rain

The Nuuuli village long boat capsized during the second trial long-boat race on the second day of the American Samoa Flag Day celebration. A small craft advisory was issued due to gusty winds associated with heavy rainfall over the Samoan coastal waters. The rowing team and captain were rescued; no injury or fatality was reported.

PACIFIC

GUZ006 Guam 21 2230GST 2300GST 4 0 0.00K 0.00K Rip Current

About 2230 GST the evening of April 21st, three men in their 30s who were spear fishing off the east coast of Guam in Togcha Bay near Talofofo were caught in and separated by strong rip currents. One of the men made it to shore and called for help, but the other two were pulled under and drowned. After an extensive search over the next few days, only one body was recovered. M?IW, M?IW

PUERTO RICO

PRZ001-007-010 Mayaguez and Vicinity - Ponce and Vicinity - San Juan and Vicinity

13 1013AST 1749AST 0 0 0.00K 0.00K Landslide

San Juan 5 NNW San Juan 13 1952AST 2300AST 0 0 45.00K 0.00K Flash Flood

Locally heavy rains affected the northern sections of the San Juan Metropolitan area. Several homes and roads in poorly drained areas of Santurce and Hato Rey were reported flooded along with stranded vehicles.

Luquillo 1 E Luquillo 13 2001AST 2100AST 0 0 0.00K 0.00K Flash Flood

Roads 983 and 940 were impassable due to flooding. Hacienda Carabali and the surrounding areas near Barrio Mameyes were reported flooded due to river Sabana overflowing its banks.

374 Time Path Path Number of Estimated April 2010 Local/ Length Width Persons Damage Location Date Standard (Miles) (Yards) Killed Injured Property Crops Character of Storm

PUERTO RICO Fajardo Fajardo 13 2041AST 2245AST 0 0 0.00K 0.00K Flash Flood

Heavy rain along river Rio Fajardo caused it to overflow its banks along Highway 3 in the Paraiso area between Fajardo and Ceiba. Rio Grande 2 NE Rio Grande 13 2045AST 2245AST 0 0 0.00K 0.00K Flash Flood

Road 191 that goes up into the Caribbean national Forest was flooded.

Subtropical jet located north of Puerto Rico combined with a mid to upper level disturbance which resulted in the development of scattered to numerous showers and a few thunderstorms across parts of Puerto Rico.

Yauco 3 SW Yauco 23 2000AST 2315AST 1 0 10.00K 0.00K Flash Flood

River Rio Loco in Yauco overflowed its banks at a low crossing bridge on road 368 in Barrio Susua Alta, carrying a vehicle and its passenger downstream. M68VE Utuado 3 S Utuado 23 2015AST 2045AST 0 0 0.00K 0.00K Flash Flood

River Rio Grande de Arecibo flooded route 605 near Vivi Arriba, and Route 140 near Paso Palma.

PRZ002-006 Central Interior - Northeast 24 0904AST 1308AST 0 0 0.00K 0.00K Landslide

Rio Grande 2 NE Rio Grande 24 1437AST 1600AST 0 0 0.00K 0.00K Flash Flood

Highway 191 was flooded close to the Caribbean National Forest river. Six to seven persons were stranded.

PRZ002 Northeast 24 1553AST 0 0 0.00K 0.00K Landslide Vega Alta 2 SSW Vega Alta 24 1623AST 2023AST 0 0 0.00K 0.00K Flash Flood

River Cibuco in Vega Alta was flooding roads 620, 647, 675, 676 and 690.

A period of localized heavy rain occurred on April 23rd and 24th which resulted in significant small stream, urban flooding and debris flow in areas of Interior Puerto Rico. Flooding on the Rio Loco in Yauco on April 23rd claimed some lives as a vehicle was swept away at a low water crossing. An old frontal trough and its associated moist and unstable air mass lingered across the area coupled with a mid to upper level disturbance to the north. Rainfall totals of 4 to 6 inches were reported across the central and western interior of the island.

375 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 …………………………………………………………………………………………………………………………… ………………………………………………………….._376…………………………………………………

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.

377

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.

378

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. 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.

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