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Flood — Dewey, SD

Mar 26, 2019

Much above normal winter snowfall and melt water/ice jams along with heavy rains in the middle of March brought flooding across parts of central and northeast South Dakota for late March. Rivers and creeks flooded across much of the area along with many fields and roads. The flooding damaged many of the roads and culverts across the region. Some structures were also flooded. Lake levels also rose threatening homes mainly in the east at Lake Kampeska near Watertown. Many counties issued emergency

Source: NOAA National Weather Service Storm Events Database (event 814738). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Dewey, SD

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

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More Flood Stories

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Dewey, SD · Apr 1, 2019

The continuation of snowmelt from a much above normal snowfall winter combined with a historic heavy snow/blizzard in mid-April resulted in widespread flooding across central and northeast South Dakota.

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Flood

Dewey, SD · Sep 18, 2025

Moderate to heavy rainfall occurred across a broad portion of Stanley and Dewey counties. The COOP observer 3 miles west southwest of Wendt would record a 2 day total of 4.94 while the CoCoRaHS observer in Fort Pierre received 4.06 over 3 days.

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Flood

Dewey, SD · Sep 18, 2025

Moderate to heavy rainfall occurred across a broad portion of Stanley and Dewey counties. The COOP observer 3 miles west southwest of Wendt would record a 2 day total of 4.94 while the CoCoRaHS observer in Fort Pierre received 4.06 over 3 days.

Read the full account →
Flood$500K damage

Dewey, SD · Jun 5, 2008

Very heavy rains of 3 to 7 inches caused extensive flooding throughout Dewey County. Many roads, bridges, dams, culverts, along with some buildings were damaged or destroyed by the flooding. One man, west of Promise, used a boat to get back and forth from his ranch.

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