Jun 27, 2010
Thunderstorms developed a little after midnight on June 27th in northeast Nebraska as an upper level disturbance pushed a cold front across the region. The late-night storms produced damaging winds in northeast Nebraska and very heavy rain which pushed into western Iowa which caused some flooding the next day.
Source: NOAA National Weather Service Storm Events Database (event 233955). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Monona County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.