National Weather Service United States Department of Commerce


Two lines of severe storms swept through the region during the afternoon and evening hours of Wednesday, May 17th.

The first batch of storms formed across northeast Iowa into southeast Minnesota, and formed a line as it moved northeast. Storms produced large hail, damaging wind, and possibly a few tornadoes.

Another line of storms swept into the area from central Iowa producing mainly wind damage as it lifted north and east into neighboring Wisconsin and Minnesota. There were a few, brief tornadoes with these storms as well.

There were numerous storm reports - lots of trees blown down - structural damage - and lots of large hail reports during this long period of storms and warnings.


Radar loop showing both lines of storms during the afternoon
and evening of May 17, 2017
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