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Flood — Hamlin, SD

May 1, 2019

Flood Cause
Heavy Rain / Snow Melt

Snowmelt and rainfall flooding from late March and April along with above normal May rainfall resulted in continued flooding on the Big Sioux River near Castlewood. The Big Sioux River did fall below flood stage for a short period of time from May 15th to the 18th. The flooding then continued into June. The river reached its highest stage in late March at 12.6 feet where flood stage is 9 feet.

Source: NOAA National Weather Service Storm Events Database (event 826794). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Hamlin, SD

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

View Hamlin County flood data →

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