National Weather Service United States Department of Commerce


Storms that repeated over parts of west-central Wisconsin from the late evening hours of August 27 into the early morning hours of August 28 resulted in an area of very heavy rainfall and flash flooding. Roughly 4 to 8" fell between La Crosse, WI and Portage, WI. High water over roadways, washed out culverts, and a mudslide were reported by local officials. A thunderstorm complex that moved through later in the morning of August 28 then added an additional 0.5 to 1" to this same area, resulting in some places receiving upwards of 9" of rain.

Observed Precipitation August 27-28, 2020


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