Jun 5, 2015
A persistent stalled frontal boundary and an upper level disturbance led to another day of severe weather and flooding across central Wyoming. Heavy rain fell on saturated soils in Natrona County and produced areas of flash flooding, especially west of Casper. The flooding closed US Highway 20/26 for several hours between Casper and Shoshoni. Other strong thunderstorms erupted to the west and northwest, with reports of nickel to half-dollar sized hail and flash flooding of some campsites at Medi
Source: NOAA National Weather Service Storm Events Database (event 571879). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Natrona County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.