National Weather Service United States Department of Commerce

Severe thunderstorms possible over the upper Midwest and Great Lakes, Heavy Rain and Flooding Possible over the Southwest U.S.

Severe thunderstorms will be possible over portions of the upper Midwest and Great Lakes Tuesday, Wednesday, and Thursday. Damaging winds, large hail, and heavy rainfall possible. Over the Desert Southwest and portions of the Rockies, Monsoonal moisture will lead to locally heavy rainfall and the threat for flash flooding into midweek. Read More >


     Numerous severe thunderstorms impacted much of central and southern Minnesota during the evening of Sunday, July 9, 2017. There were many reports of very large hail, in excess of 2" in diameter, with one report of a 4" hail stone. In addition, reports from spotters and law enforcement indicated that at least one tornado may have touched down in southern Nicollet and/or northwest Blue Earth Counties. A damage survey team from the National Weather Service reviewed the area of damage and confirmed that two tornadoes occurred: an EF-0 near Courtland in Nicollet County and an EF-1 near Lake Crystal in Blue Earth County.


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