Sep 22, 2010
Persistent thunderstorms developed in the late morning over southeast South Dakota and continued through the afternoon and evening. All of the storms through early afternoon produced large hail, with one report of damaging wind gusts. Large hail, heavy rain and flash flooding were noted during the evening. Some of the flash flooding continued through the night and next day as flooding.
Source: NOAA National Weather Service Storm Events Database (event 262378). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Brookings County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.