Jun 24, 2011
The first extended warm spell of the season produced an active period of snowmelt from an historic snowpack in the western Bighorn Mountains. As a result, waterways in and near the foothills of the Bighorn Mountains rose rapidly causing flooding in Big Horn and Washakie counties.
Source: NOAA National Weather Service Storm Events Database (event 317163). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Big Horn County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.