Jul 15, 2021
A line of thunderstorms preceding a cold front dropped into north-central Illinois during the pre-dawn hours of July 15th. Several cells trained over the same locations, with Doppler radar rainfall estimates of 2 to 4 inches across southern Marshall County. The heavy rainfall prompted the closure of several roads, including Illinois Route 17 between Lacon and Sparland.
Source: NOAA National Weather Service Storm Events Database (event 966280). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Marshall County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.