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Hot and humid conditions set the stage for a round of severe thunderstorms that developed during the evening of Friday, July 28, 2023. There were two areas of storm development: one that initiated near the Twin Cities and another over northeast Iowa and southwest Wisconsin.

A few intense supercells produced very large hail of 2 to 4 inches in diameter in the Medford, Galesville, Holmen, and West Salem, Wisconsin areas, along with some damaging winds. The storms eventually merged into bowing segments that produced more widespread wind damage along the Highway 21 corridor in west-central and central Wisconsin. Lone Rock, Wisconsin also sustained substantial wind damage with a 77 mph wind gust measured at the Lone Rock Tri-County Airport. 

radar loop
Radar animation from 5 to 10 pm CDT on Friday, July 28, 2023
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