Jul 16, 2009
A cold front dropping southward through the region triggered a supercell thunderstorm over south-central Illinois during the evening of July 16th. This cell tracked east-southeast and grazed the southern section of Clay County and extreme southwest Richland County with strong winds and heavy rainfall.
Source: NOAA National Weather Service Storm Events Database (event 180869). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Clay County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.