Aug 11, 2023
Thunderstorms developed overnight across Iowa, ahead of a cold front, in an environment characterized by moderate instability and shear. The storms congealed into a line that swept across central Illinois during the early morning hours of August 11, producing scattered damaging winds before weakening after moving east of I-55. The thunderstorms produced locally heavy rainfall over 1 inch, which led to minor flooding in urban areas.
Source: NOAA National Weather Service Storm Events Database (event 1122382). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Tazewell County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.