Jun 8, 2020
Thunderstorms fired along a slowly moving cold front during the early evening. Initially discrete, strong updrafts with 2000-2500 J/kg MLCAPE and deep-layer shear around 50 knots resulted in supercells, which later congealed into a slowly progressing line. With most storms forming slightly elevated behind the boundary, most severe weather was in the form of large hail.
Source: NOAA National Weather Service Storm Events Database (event 905253). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Charles Mix County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.