Jul 2, 2023
An extreme rainfall event occurred on July 2 in the Chicago metropolitan area caused by multiple nearly stationary bands of showers and thunderstorms near a slow-moving low pressure area. Rainfall occurred over from approximately 12 AM CST to 6 PM CST, with peak rainfall rates exceeding 2 inches per hour and storm total accumulations nearing 9.0 inches in Cook County. Individual showers and thunderstorms moved very slowly during the event, with storm motions of 15 mph or less, leading to extende
Source: NOAA National Weather Service Storm Events Database (event 1127999). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Will County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.