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Flash Flood — Douglas, SD

Jul 6, 2020

Lift associated with a jet streak across southern North Dakota interacted with an unstable and weakly capped environment with 30 to 40 knots of deep-layer shear to produce a couple of smaller clusters of thunderstorms with large hail and damaging wind during the evening and overnight which progressed east and southeast across southeast South Dakota. The final cluster was a larger-scale bowing segment which produced damaging wind gusts across south central South Dakota. Repeated storms with hea

Source: NOAA National Weather Service Storm Events Database (event 909297). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Douglas, SD

This event is one of many recorded floods in Douglas County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

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