May 18, 2020
A slow moving upper low over Illinois combined with a conveyor belt of humid air over Ohio supported widespread showers and thunderstorms over southern and central Ohio on the afternoon and evening of the 18th. The weather conditions supported not severe weather but heavy rain. Rain rates of 2 inches an hour or higher were observed with storms that trained, or repeated over the same areas. Overnight the low sank further south and drier air filtered into north and eastern counties which reduced
Source: NOAA National Weather Service Storm Events Database (event 890735). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Richland County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.