Event narrative (NOAA)
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.
Other notable flash flood events in Illinois
Source: NOAA/NCEI Storm Events Database. Deaths and injuries are those NOAA classifies as direct. Damage is the reporting office's estimate at the time and is not inflation-adjusted. This is a catalogue record, not a forecast.