Jun 9, 2018
After an early morning flash flood event in eastern Iowa, with some damaging winds near the Mississippi River into far northwest Illinois, a line of slow moving supercell thunderstorms moved southeast from northern Iowa, into portions of eastern Iowa the evening of June 9th. Damaging winds, large hail, a few tornadoes, and torrential rain accompanied the storms.
Source: NOAA National Weather Service Storm Events Database (event 755990). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in McDonough County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.