Aug 4, 2025
A weak trough of low pressure triggered a few clusters of thunderstorms across central and southeast Illinois during the afternoon and evening of August 4th. One of the most prominent clusters dropped 2.44 of rain in a short amount of time at the Lawrenceville Airport and caused flash flooding along Illinois Route 1 on the north side of Lawrenceville.
Source: NOAA National Weather Service Storm Events Database (event 1289039). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Lawrence County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.