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Flood — Grant, SD

Jun 13, 2025

A broad low-pressure system brought several rounds of rain and a few strong, isolated thunderstorms to northeast South Dakota. The rain began on the morning of June 12th. A break in the rain mid-day allowed the atmosphere to destabilize, which led to stronger storms in the afternoon. One storm produced penny-sized hail 3 miles west of Blunt. Another storm in Mansfield produced penny to nickel-sized hail and winds strong enough to damage house siding and shingles.||Heavy rain continued across the

Source: NOAA National Weather Service Storm Events Database (event 1262432). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Grant, SD

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

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