May 17, 2013
A line of thunderstorms developed over the southern Big Horn Basin and become severe as they progressed to the northeast. Hail was reported in multiple locations. The largest hail was quarter sized and was observed in Winchester. Several funnel clouds were reported in Washakie County with a rotating wall cloud reported north of Worland. Heavy rain in and on the steep slopes just east of Medicine Lodge State Archaeological Site resulted in flash flooding in that park. One main road and six campsi
Source: NOAA National Weather Service Storm Events Database (event 443095). 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.