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Storm Data and Unusual Weather Phenomena - April 2013

Location Date/Time Deaths & Property & Event Type and Details Injuries Crop Dmg

ILLINOIS, Northeast

(IL-Z013) DU PAGE 04/08/13 08:39 CST 0.50K Strong Wind (MAX 48 kt) 04/08/13 08:39 CST 0

A strong area of low pressure drove winds to 50 mph across northern . Minor damage occurred at DuPage Airport on a hanger door.

WINNEBAGO COUNTY --- 0.9 SE THE LEDGES [42.41, -88.99] 04/09/13 07:30 CST 0 Hail (0.88 in) 04/09/13 07:40 CST 0 Source: CoCoRaHS

WINNEBAGO COUNTY --- 1.5 E THE LEDGES [42.42, -88.97] 04/09/13 07:30 CST 0 Hail (0.88 in) 04/09/13 07:40 CST 0 Source: COOP Observer

Nickel size hail covered the ground.

WINNEBAGO COUNTY --- 1.5 E THE LEDGES [42.42, -88.97] 04/09/13 08:30 CST 0 Hail (0.88 in) 04/09/13 08:40 CST 0 Source: COOP Observer

A second thunderstorm moved over the same area dropping hail up to the size of nickels. The ground was still covered in hail from the previous storm about an hour earlier.

A few strong thunderstorms developed over dropping nickel size hail.

OGLE COUNTY --- 3.0 ESE ROCHELLE [41.90, -89.02], 2.4 ESE ROCHELLE [41.91, -89.02] 04/10/13 05:40 CST 0.15M Thunderstorm Wind (EG 50 kt) 04/10/13 05:40 CST 0 Source: Law Enforcement

Over a dozen semi trucks either jackknifed or flipped onto their side at the and 88 in southeast Ogle County. A squall line moved across the interstate causing the strong winds. Nearby, at Rochelle Airport winds were measured to 51 mph, while farther east winds were measured to 56 mph at Northern Illinois University in De Kalb.

A squall line moved across Interstate 39 causing multiple semi-trucks in southeastern Ogle County to jackknife or flip on their sides.

LEE COUNTY --- 0.7 N PAW PAW [41.69, -88.98] 04/17/13 07:46 CST 0 Hail (0.88 in) 04/17/13 07:48 CST 0 Source: Trained Spotter

KENDALL COUNTY --- OSWEGO [41.68, -88.35] 04/17/13 08:20 CST 0 Hail (0.75 in) 04/17/13 08:22 CST 0 Source: Trained Spotter

DU PAGE COUNTY --- 1.2 SSE HIGHLAND HILLS [41.83, -88.01] 04/17/13 08:47 CST 0 Hail (0.75 in) 04/17/13 08:49 CST 0 Source: Trained Spotter

Penny size hail was reported near the intersection of and Highland Avenue.

DE KALB COUNTY --- DE KALB [41.93, -88.75] 04/17/13 10:10 CST 0 Hail (0.88 in) 04/17/13 10:14 CST 0 Source: Trained Spotter

COOK COUNTY --- SCHAUMBURG [42.03, -88.08] 04/17/13 10:19 CST 0 Hail (0.75 in) 04/17/13 10:21 CST 0 Source: Trained Spotter

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Location Date/Time Deaths & Property & Event Type and Details Injuries Crop Dmg

DE KALB COUNTY --- 2.5 ESE CORTLAND [41.90, -88.64] 04/17/13 10:20 CST 0 Hail (0.88 in) 04/17/13 10:22 CST 0 Source: Trained Spotter

KANE COUNTY --- 2.1 NW HENPECK [42.14, -88.51] 04/17/13 10:23 CST 0 Hail (0.88 in) 04/17/13 10:25 CST 0 Source: Amateur Radio

Nickel size hail was reported near and Route 20.

KANE COUNTY --- 0.9 NE EAST DUNDEE [42.11, -88.26] 04/17/13 10:26 CST 0 Hail (0.88 in) 04/17/13 10:28 CST 0 Source: Trained Spotter

KANE COUNTY --- ELGIN [42.03, -88.28] 04/17/13 10:37 CST 0 Hail (0.75 in) 04/17/13 10:39 CST 0 Source: Trained Spotter

LEE COUNTY --- 1.0 NNW WALTON [41.73, -89.44] 04/17/13 10:45 CST 0 Hail (0.88 in) 04/17/13 10:48 CST 0 Source: Public

Nickel sized hail covered the ground.

KANE COUNTY --- 1.7 N DUNDEE KOPPIE ARPT [42.15, -88.37], 1.8 NNE CARPENTERSVILLE [42.15, -88.24], 2.2 E ELGIN ARPT [42.07, -88.24], 0.9 ESE ELGIN ARPT [42.07, -88.26], 1.1 NE SOUTH ELGIN [42.01, -88.26], 2.6 WSW PLATO CENTER [42.01, -88.47], 2.5 NNE HENPECK [42.15, -88.46] 04/17/13 10:53 CST 0 Flash Flood (due to Heavy Rain) 04/17/13 17:00 CST 0 Source: 911 Call Center

The intersection of Route 47 and Plato Road was flooded. Water was rushing over the road near Sandbloom Road and Bolz Road. Standing water was reported on Route 72 and . Observers reported storm total rainfall of 5.34 inches near Algonquin and 4.36 inches near Elgin.

LAKE COUNTY --- NORTH BARRINGTON [42.22, -88.13] 04/17/13 11:14 CST 0 Hail (1.00 in) 04/17/13 11:16 CST 0 Source: Trained Spotter

LAKE COUNTY --- WAUKEGAN [42.37, -87.83] 04/17/13 11:45 CST 0 Hail (0.88 in) 04/17/13 11:47 CST 0 Source: Trained Spotter

MCHENRY COUNTY --- CRYSTAL LAKE [42.23, -88.33] 04/17/13 12:12 CST 0 Hail (1.00 in) 04/17/13 12:14 CST 0 Source: Trained Spotter

OGLE COUNTY --- 4.4 W BAILEYVILLE [42.20, -89.69], 6.1 NE BYRON [42.20, -89.17], 3.4 N STILLMAN VLY [42.15, -89.17], 4.5 NE MONROE CENTER [42.15, -88.94], 3.0 SSE CRESTON [41.89, -88.94], 4.1 W WOOSUNG [41.90, -89.63], 3.8 SSW BUFFALO GROVE [41.93, -89.63], 2.7 S HAZELHURST [41.93, -89.69] 04/17/13 13:18 CST 0 Flash Flood (due to Heavy Rain) 04/17/13 17:00 CST 0 Source: Emergency Manager

Flooding was occurring at a nursing home in Oregon. Sandbags were sent to Stillman Valley. Creeks were rising out of their banks near Polo. River Road was closed south of Route 72 near Byron. Also near Byron, the Rock River undercut portions of the shoulder of Route 2 in several spots. Widespread standing water was reported county wide. An observer in Oregon reported a storm total of 5.00 inches or rainfall.

LAKE COUNTY --- 2.8 WNW CHANNEL LAKE [42.49, -88.20], 1.1 ENE WINTHROP HARBOR [42.49, -87.80], 0.4 SSW NORTH [42.31, -87.83], 0.7 ESE SHERIDAN AAF [42.22, -87.81], 1.6 SE DEERFIELD ESTATES [42.15, -87.90], 2.0 NNW BARRINGTON HILLS [42.15, -88.20] 04/17/13 15:45 CST 4.70M Flash Flood (due to Heavy Rain) 04/17/13 17:00 CST 0 Source: Emergency Manager

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Location Date/Time Deaths & Property & Event Type and Details Injuries Crop Dmg A levee was breached in Lincolnshire requiring 49 homes to be evacuated. Route 41 was closed between Route 137 and Route 176. Near Beach Park, water was reported over many roads, ponds were out of banks, and many homes had water up to doorsteps. County emergency managers estimated that 4,500 properties were affected by the flooding.

LIVINGSTON COUNTY --- 4.2 W FLANAGAN [40.88, -88.93], 1.7 WNW MUNSTER [41.11, -88.93], 2.3 SE DWIGHT ARPT [41.11, -88.39], 2.9 S CORNELL [40.94, -88.73] 04/17/13 20:15 CST 0 Flash Flood (due to Heavy Rain) 04/18/13 02:30 CST 0 Source: Law Enforcement

Illinois Route 18 was under water just north of . The viaduct on south of Streator was flooded. Dwight received 3.67 inches of rainfall.

LA SALLE COUNTY --- 3.8 S RUTLAND [40.93, -89.05], 1.7 N EAST WENONA [41.10, -89.05], 6.7 NE RANSOM [41.22, -88.59], 5.2 ESE RANSOM [41.11, -88.59], 2.0 NNE GARFIELD [41.11, -88.93], 1.8 SSE DANA [40.93, -88.93] 04/17/13 20:40 CST 0 Flash Flood (due to Heavy Rain) 04/18/13 02:30 CST 0 Source: Trained Spotter

Approximately six inches of running water was reported a mile east of Route 251 on North 2nd Road making the road impassable. An observer near Seneca reported 5.17 inches of rain while an observer near Streator reported 4.76 inches of rainfall.

LA SALLE COUNTY --- 3.6 ENE LAKE HOLIDAY [41.63, -88.60], 5.0 W WELLAND [41.63, -89.17], 3.2 SSW PRISCILLA [41.10, -89.16], 2.3 SE SENECA [41.30, -88.59] 04/18/13 03:13 CST 1 75M Flash Flood (due to Heavy Rain) 04/18/13 19:00 CST 0 Source: Emergency Manager

County emergency managers estimated that over 500 buildings were damaged by flooding across La Salle County. In Marseilles, 1500 people were evacuated due to a compromised levee which led to dozens of homes and facilities being flooded along the river front. Several barges broke loose from a tugboat on the and rammed into the levee. Five of the eight locks were damaged such that they could not close completely. Flooding occurred in Utica east of Route 178 resulting in evacuations on the I&M Canal. Creeks were reported out of their banks in Mendota. A woman was killed on Route 351 as it passes over the Illinois River near Peru. She drove around barricades and became stranded in knee-deep water. Her body was found about two weeks later approximately 70 yards downstream.

Direct Fatalities: F62VE

DU PAGE COUNTY --- 2.5 WNW MUNGER [41.99, -88.26], 3.0 ENE WOOD DALE [41.99, -87.92], 2.9 SE BURR RIDGE [41.72, -87.91], 4.4 S WILLOWBROOK [41.69, -87.97], 3.1 S WOODRIDGE [41.69, -88.03], 0.1 SSW WOODRIDGE [41.73, -88.03], 2.4 SW FRONTEAC [41.72, -88.26] 04/18/13 03:45 CST 6.50M Flash Flood (due to Heavy Rain) 04/18/13 19:00 CST 0 Source: Emergency Manager

Widespread flooding was reported over much of DuPage County. Dozens of homes were underwater in Towers of Four Lakes Village requiring emergency crews to rescue people trapped inside. Numerous roadways were covered with flowing water causing several cars to stall. Lower levels of several apartment buildings were flooded. Retention ponds were overflowing. was closed between Wegner Drive and Joliet Street due to high water. Portions of Route 53 were closed between 75th Street and Royce Road. Numerous basements were flooded near Elmhurst, Lisle, and Naperville. Some residents had to be rescued in Lisle. The Glen Ellyn Public Library building's sub-basement flooded under five feet of water and also received extensive damage on the first floor. In Lombard, basements as well as first floors were flooded. Approximately 30 streets in Lombard were completely submerged.

Du Page county received the most rainfall during this evening with several sites reporting over seven inches of rain. Observers measured 7.34 inches near Naperville, 7.26 inches near Elmhurst, 7.12 inches near Aurora, and 7.01 inches near Lisle.

DE KALB COUNTY --- 2.0 SW MILAN [41.83, -88.91], 1.8 NNW DE KALB [41.96, -88.76], 3.5 SE CHARTER GROVE [42.03, -88.60], 1.6 SE SANDWICH [41.63, -88.60], 4.2 SW ROLLO [41.63, -88.94] 04/18/13 03:50 CST 0 Flash Flood (due to Heavy Rain) 04/18/13 11:00 CST 0 Source: Law Enforcement

Numerous roads were closed across the county due to flooding. An observer in De Kalb reported 4.67 inches of rain. An observer in Shabbona reported 4.53 inches of rain.

COOK COUNTY --- 0.5 N GLENCOE [42.14, -87.75], 0.5 NNW WILMETTE [42.08, -87.68], 2.1 NE AVONDALE [41.99, -87.65], 0.6 SE ELK GROVE [41.99, -87.92], 1.2 SW SPAULDING [41.99, -88.26], 2.7 NNE ELGIN [42.07, -88.26], 3.1 WSW SUTTON [42.07, -88.24], 3.4 WNW BARRINGTON HILLS [42.15, -88.24] 04/18/13 03:55 CST 12M Flash Flood (due to Heavy Rain) 04/18/13 19:00 CST 0 Source: Emergency Manager

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Location Date/Time Deaths & Property & Event Type and Details Injuries Crop Dmg Widespread flooding was reported across northern Cook County. All lanes on were impassable near Pratt Avenue. Hundreds of homes were flooded, including homes along the Des Plaines River where some basements were flooded to the ceiling. The exit ramp from Interstate 90 to Arlington Heights Road was blocked due to flooding. Over six inches of water was reported on Avenue from Golf Road to north of Glenview Road. Portions of the Edens Expressway were closed. Some of the heaviest rainfall reports include 6.23 inches near Winnetka, 5.91 inches near Lincolnwood, and 5.82 inches near Evanston.

COOK COUNTY --- 0.6 SE ELK GROVE [41.99, -87.92], 2.1 NE AVONDALE [41.99, -87.65], 3.5 NE CLABURN [41.71, -87.52], 3.0 ENE CLABURN [41.69, -87.52], 0.5 NNE HASTINGS [41.69, -87.97], 0.8 ESE SANTA FE PARK [41.72, -87.91] 04/18/13 03:55 CST 6M Flash Flood (due to Heavy Rain) 04/18/13 19:00 CST 0 Source: Emergency Manager

Widespread flooding was reported in central Cook County. Flooding was reported on the eastbound lanes of Interstate 290 between York Road and North Avenue. Flooding was reported on Route 45 and Archer Avenue in Willow Springs. Portions of the Dan Ryan, Edens, Eisenhower, and Kennedy Expressways were closed due to flooding. Chicago received over 1,200 calls for flooded basements. Some of the heaviest rainfall reports include 6.41 inches near Melrose Park, 5.55 inches at O'Hare Airport, and 5.25 inches near Oak Park. The flow of the Chicago River was reversed, providing relief by allowing it to flow into Lake Michigan.

COOK COUNTY --- 3.0 ENE CLABURN [41.69, -87.52], 2.9 ESE SAUK VLG [41.47, -87.53], 3.6 W PARK FOREST SOUTH [41.47, -87.79], 1.0 SW KIMBERLY HGTS [41.56, -87.79], 4.4 WSW FERNWAY [41.56, -87.91], 2.3 WNW ORLAND PARK [41.64, -87.91], 2.4 SW LEMONT [41.64, -88.03], 1.9 NW LEMONT [41.69, -88.03] 04/18/13 05:00 CST 0 Flash Flood (due to Heavy Rain) 04/18/13 19:00 CST 0 Source: Emergency Manager

Widespread flooding was reported in southern Cook County. Portions of the Bishop Ford Expressway were closed. Some of the heaviest rainfall reports include 5.59 inches near Burnham-Hegewisch, 4.85 inches near Park Forest, and 4.45 inches in Palos Park.

GRUNDY COUNTY --- 1.0 WNW NETTLECREEK [41.46, -88.60], 1.3 NE MINOOKA [41.46, -88.25], 3.1 SSE EAST BROOKLYN [41.13, -88.24], 5.0 S KINSMAN [41.11, -88.59] 04/18/13 05:00 CST 15M Flash Flood (due to Heavy Rain) 04/18/13 19:00 CST 0 Source: Emergency Manager

The hardest hit areas in Grundy County were Morris, Mazon, and Minooka. Numerous rescues took place, including people trapped in vehicles in rising waters. Forty-four patients at Morris Hospital were evacuated when the lower floor flooded. The aqueduct that carries the I & M canal over Nettle Creek collapsed. South of Morris, Pine Bluff Road was impassable with approximately a foot of water.

WILL COUNTY --- 1.8 NNE WOLFS [41.72, -88.26], 2.1 ENE BARBERS CORNERS [41.73, -88.03], 0.6 SSE BRUNNING [41.64, -88.03], 1.3 NE GOODINGS GROVE [41.64, -87.91], 0.7 NE MARLEY [41.56, -87.91], 2.1 SSE FRANKLIN SQUARE [41.47, -87.79], 1.8 NNW PEOTONE [41.35, -87.79], 2.0 S GODLEY [41.20, -88.24] 04/18/13 05:01 CST 0 Flash Flood (due to Heavy Rain) 04/18/13 19:00 CST 0 Source: Emergency Manager

Widespread flooding was reported in portions of Will County. Rolf Road was closed between Lilly Cache Road and Route 59. South Lilly Cache Road was impassable with over 16 inches of standing water between Caton Farm Road and Rolf Road. Route 30 was closed between 143rd Street and Wolf's Crossing Road. Van Dyke Road was closed between Route 126 and 119th Street. Walling Drive was closed between 143rd Street and Route 126. Storm total rainfall reports include 5.48 inches in Plainfield, 5.10 inches in Manhattan, and 4.29 inches in Mokena.

KENDALL COUNTY --- 1.2 W LITTLE ROCK [41.72, -88.60], 4.5 E BOULDER HILL [41.72, -88.26], 6.6 E WHITE WILLOW [41.46, -88.25], 4.3 S NEWARK ARPT [41.46, -88.60] 04/18/13 06:00 CST 0 Flash Flood (due to Heavy Rain) 04/18/13 19:00 CST 0 Source: Emergency Manager

Numerous roads were closed across the county due to flooding. An observer near Yorkville reported 6.30 inches of rain while another near Montgomery reported 5.66 inches.

IROQUOIS COUNTY --- WATSEKA [40.78, -87.73] 04/18/13 07:20 CST 5K Thunderstorm Wind (EG 50 kt) 04/18/13 07:20 CST 0 Source: Emergency Manager

Trees and power lines were blown down in Watseka.

FORD COUNTY --- 2.8 ESE GIBSON CITY [40.46, -88.32], 2.3 WSW ELLIOTT [40.46, -88.31] 04/18/13 07:36 CST 15K Tornado (EF0, L: 0.57 mi , W: 20 yd) 04/18/13 07:37 CST 0 Source: Emergency Manager

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Location Date/Time Deaths & Property & Event Type and Details Injuries Crop Dmg Witnesses described a tornado briefly touching down and hitting a barn, killing two horses, then lifting back up. Six power poles were also blown down. Emergency managers found debris as far as approximately six miles away.

Strong storms kicked off record setting heavy rains which resulted in record crests across area streams and rivers. Many locations across northern Illinois received 4 to 7 inches of rainfall, with several reports of over 7 inches of rain out of Du Page County.

WINNEBAGO COUNTY --- 0.5 E ROSCOE [42.42, -89.01] 04/29/13 13:31 CST 0 Hail (1.00 in) 04/29/13 13:34 CST 0 Source: Trained Spotter

An isolated severe thunderstorm developed over far northern Illinois dropping quarter size hail.

INDIANA, Northwest

NEWTON COUNTY --- 1.0 N MT AYR [40.96, -87.28] 04/17/13 19:30 CST 0 Hail (0.75 in) 04/17/13 19:32 CST 0 Source: Trained Spotter

LAKE COUNTY --- 2.0 SSW LOWELL [41.25, -87.43] 04/18/13 07:45 CST 0 Thunderstorm Wind (MG 50 kt) 04/18/13 07:45 CST 0 Source: Mesonet

NEWTON COUNTY --- 2.4 NE MAROCCO [40.97, -87.41], 3.3 ENE MAROCCO [40.97, -87.39] 04/18/13 07:45 CST 3K Thunderstorm Wind (EG 50 kt) 04/18/13 07:45 CST 0 Source: Trained Spotter

Several power poles were blown down on County Road 200S between Meridian Road and County Road 100W.

JASPER COUNTY --- 5.0 WSW DUNNS BRIDGE [41.19, -87.06] 04/18/13 08:10 CST 0 Thunderstorm Wind (MG 56 kt) 04/18/13 08:10 CST 0 Source: Mesonet

BENTON COUNTY --- 0.3 N EARL PARK [40.68, -87.42], 0.6 ENE EARL PARK [40.68, -87.41] 04/18/13 08:32 EST 15K Thunderstorm Wind (EG 50 kt) 04/18/13 08:32 EST 0 Source: Law Enforcement

Strong winds caused power lines and a grain bin to be blown over. In addition, building damage was reported in town including the collapse of a retirement home roof.

Strong storms occurred and heavy rains resulted in flooding across the region.

LAKE MICHIGAN

WILMETTE HARBOR TO NORTHERLY ISLAND IL COUNTY --- HARRISON-DEVER CRIB [41.92, -87.57] 04/06/13 21:40 CST 0 Marine Thunderstorm Wind (MG 48 kt) 04/06/13 22:50 CST 0 Source: C-MAN Station

Winds in excess of 34 knots were measured for just over an hour, peaking at 48 knots.

BURNS HARBOR TO MICHIGAN CITY IN COUNTY --- MICHIGAN CITY [41.73, -86.91] 04/06/13 22:45 CST 0 Marine Thunderstorm Wind (EG 49 kt) 04/06/13 23:20 CST 0 Source: C-MAN Station

Winds in excess of 34 knots were measured for just over half an hour, peaking at 49 knots.

BURNS HARBOR TO MICHIGAN CITY IN COUNTY --- BURNS HARBOR [41.65, -87.15]

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Location Date/Time Deaths & Property & Event Type and Details Injuries Crop Dmg 04/06/13 23:10 CST 0 Marine Thunderstorm Wind (MG 38 kt) 04/06/13 23:10 CST 0 Source: C-MAN Station

A line of thunderstorms moved over southern Lake Michigan producing winds in excess of 50 mph.

WILMETTE HARBOR TO NORTHERLY ISLAND IL COUNTY --- HARRISON-DEVER CRIB [41.92, -87.57] 04/10/13 06:55 CST 0 Marine Thunderstorm Wind (EG 47 kt) 04/10/13 07:05 CST 0 Source: C-MAN Station

A line of thunderstorms produced winds in excess of 36 knots for around 10 minutes, with a peak gust to 47 knots.

A line of thunderstorms moved over Lake Michigan producing strong winds.

WILMETTE HARBOR TO NORTHERLY ISLAND IL COUNTY --- HARRISON-DEVER CRIB [41.92, -87.57] 04/17/13 06:50 CST 0 Marine Thunderstorm Wind (MG 43 kt) 04/17/13 06:50 CST 0 Source: C-MAN Station

WILMETTE HARBOR TO NORTHERLY ISLAND IL COUNTY --- HARRISON-DEVER CRIB [41.92, -87.57] 04/17/13 15:40 CST 0 Marine Thunderstorm Wind (MG 61 kt) 04/17/13 15:45 CST 0 Source: C-MAN Station

Winds gusted above 48 knots for 5 minutes, with a peak gust to 61 knots.

BURNS HARBOR TO MICHIGAN CITY IN COUNTY --- BURNS HARBOR [41.65, -87.15] 04/18/13 08:00 CST 0 Marine Thunderstorm Wind (MG 36 kt) 04/18/13 08:00 CST 0 Source: C-MAN Station

BURNS HARBOR TO MICHIGAN CITY IN COUNTY --- MICHIGAN CITY [41.73, -86.91] 04/18/13 08:20 CST 0 Marine Thunderstorm Wind (MG 45 kt) 04/18/13 08:20 CST 0 Source: C-MAN Station

Winds gusted in excess of 34 knots for 10 minutes, peaking at 45 knots.

Strong storms resulted in severe winds across southern Lake Michigan.

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