Flash Flood — Grant, Wisconsin

2008-06-12 · near Cassville, Grant, Wisconsin

Event narrative

A major flash flood hit Grant County during the afternoon of June 12th impacting the communities of Lancaster, Potosi, Tennyson, Ellenboro, and other rural areas. Numerous rescues were performed from people trapped in cars, especially in the Potosi area where terrain enhanced the runoff from repeat thunderstorms. Several homes on Hippie Hollow Road in Potosi Township were destroyed along with damage to as many as 600 homes elsewhere in the region. Many highways and county roads suffered flood damage including major bridge and road infrastructure.

Wider weather episode

Rainfall totals of 3 to 4 inches caused flash flooding across parts of southwest Wisconsin during the afternoon and evening of June 12 from repeat thunderstorms. Hardest hit communities were in Grant County and included Potosi, Tennyson and British Hollow. Southern sections of Richland County was also impacted. Many county and secondary roads and bridges were washed out in the vicinity of the Platte River.

View location on OpenStreetMap → (42.7289, -91.0204)

Source: NOAA Storm Events Database, event_id 97321. Narrative written by the NWS forecast office that issued the report.