Jul 3, 2019
As an outflow boundary sagged through southeast South Dakota, an isolated elevated thunderstorm developed late morning northwest of Sioux Falls. Wind shear was weak, and as the storm underwent a split, both storms produced marginally large hail. By mid afternoon, a second isolated storm developed with very slow movement south of Huron, SD, again featuring torrential rainfall and some severe hail.
Source: NOAA National Weather Service Storm Events Database (event 842780). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Beadle County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.