Apr 30, 2003
Supercell thunderstorms developed in the afternoon and evening north of a warm front that ran from Southern Iowa into Central Illinois. Three distinct supercells produced a majority of the wind, hail, and heavy rain reports from Jefferson County Iowa into Henry County Illinois. Mercer County Illinois was under tornado warnings on a continuous basis for 2 hours. Officials at a high school track meet in Aledo, Illinois ushered all students into the safety of the school resulting in no injuries.
Source: NOAA National Weather Service Storm Events Database (event 5355439). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Henry County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.