Jul 7, 2015
A nearly stationary thunderstorm first developed around 1400MST over the city of Rock Springs. A moisture-laden atmosphere and weak steering winds aloft allowed for the production of very heavy rainfall in a short period of time. Rainfall totals in the hardest hit areas generally ranged from 1.5 to 2 inches, most of which fell in about 30 minutes before a a second round began around 1500MST. This rain fell on soil already saturated from thunderstorm rains the previous day. The result was flash f
Source: NOAA National Weather Service Storm Events Database (event 587690). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Sweetwater County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.