Jun 27, 2019
Scattered thunderstorms developed across northern Illinois during the evening hours of June 26th producing large hail and wind damage. These thunderstorms then produced heavy rain which caused flash flooding in the southern suburbs of the Chicago Metro area into the early morning hours of June 27th.
Source: NOAA National Weather Service Storm Events Database (event 838627). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Cook County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.