National Weather Service United States Department of Commerce


A volatile atmosphere quickly exploded with severe storms during the late afternoon and evening hours of June 2, 2020. A very warm and humid atmosphere provided a rich environment for storms, and once the storms got going, they quickly became severe producing hail of +2 inches and damaging down burst winds. 

The line of storms developed earlier in the day across central Minnesota, extending into northwest Wisconsin. The line sagged southeast in the afternoon, with scattered storms developing just ahead of it by early evening. The storms continued to become more widespread in the early evening, with a portion of the storms organizing into line segments enhancing the wind threat. 

Along with the large hail and damaging winds, locally heavy rain accompanied many of the storms, resulting in urbanized street flooding at some locations. 

radar from 3 to 7 pm Tue Jun 2020
Storm moving across La Crosse County, WI (credit: Dave Lawrence)
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