The following events were reported: Flash Flood, Hail. These occurred near station USW00094846, approximately 30.6898 km away, between 2013-04-17 08:20:00 and 2013-04-18 19:00:00. The events included records with hailstones measuring 0.845 inches.Thankfully, no injuries or fatalities were reported. The events caused property damage valued at 29200000.0 and crop damage of 0.0. Episode Narrative: 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. Strong storms kicked off record setting heavy rains which resulted in record crests across area streams and rivers. Event Narrative:  Penny size hail was reported near the intersection of Interstate 88 and Highland Avenue. 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. 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 Randall Road. Observers reported storm total rainfall of 5.34 inches near Algonquin and 4.36 inches near Elgin. 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. Roosevelt Road 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. Widespread flooding was reported across northern Cook County. All lanes on Interstate 94 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 Milwaukee 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. 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. 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.