National Weather Service United States Department of Commerce


Widespread thunderstorms moved across the region on Saturday, August 7th 2021.

Storms were very efficient rainfall producers, including rainfall rates in excess of 2" per hour at times.  A swath of 4 to 6 inches fell from near Winona, MN east southeast across La Crosse, southeast Monroe and northern Vernon counties in Wisconsin. This resulted in widespread flooding, especially in the city of La Crosse where street flooding stranded numerous vehicles. An additional band of 3 to 5 inches came a few hours later, running from southern Clark to across Adams and Juneau counties in central Wisconsin. Some locations received record rainfall for the day, with even some record 2-3 day totals.

In southwest Wisconsin, a strong tornado (EF-3) touched down near Boscobel, destroying or damaging several houses and outbuildings as it tracked east for just over 10 miles. The tornado lasted for 27 minutes and started near the southern edge of Boscobel. No injuries were reported.


afternoon radar
Radar loop from 1 to 7 p.m. August 7, 2021
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