Jun 1, 2010
Supercell thunderstorms developed in northeast Nebraska as a warm front pressed north toward that region and a cold front was dropping south through north central Nebraska. South of the warm front temperatures climbed to around 90 degrees with dewpoint temperatures around 70. Meanwhile north of the cold front temperatures were in the 60s and 70s. As the two boundaries merged in the late afternoon the storms merged into a line which pushed southeast across the Omaha area and into western Iowa.
Source: NOAA National Weather Service Storm Events Database (event 223199). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Harrison County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.