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Flash Flood — Grant, WI

Aug 8, 2022

Storms moved across southwest Wisconsin during the early morning hours of August 8th. These storms produced heavy rainfall with radar estimates of 2 to 2.5 inches. Runoff from this heavy rain caused some rock slides to occur near Potosi (Grant County). A few culverts became clogged with debris, sending water over State Highway 133.

Source: NOAA National Weather Service Storm Events Database (event 1051944). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Grant, WI

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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