National Weather Service United States Department of Commerce


A line of thunderstorms developed the evening of September 19th across the eastern Dakotas and moved into western Minnesota before midnight of September 20th. Severe thunderstorms developed into west central and parts of central Minnesota producing large hail, downbursts and six tornadoes. This line of thunderstorms slowly weakened as it moved into far eastern Minnesota, with general, non-severe thunderstorms as the line progressed into West Central Wisconsin after 3 am CDT.

Tornado, Downburst, and Indeterminate Damage Points
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