National Weather Service United States Department of Commerce

Regional Outbreaks of Severe Weather Through Early Next Week; Early Season Heat Wave across the South

Active spring pattern across the center of our nation with several episodes of severe weather and heavy rainfall expected into next week. The potential for very large hail, long track tornadoes, severe wind gusts, frequent cloud to ground lightning strikes and flash flooding are in the outlook. Furthermore, dangerous early season heat wave continues for the Gulf Coast states into early next week. Read More >

Overview

A surface boundary extended from southern Minnesota into northeast Iowa on Wednesday, June 17th. Warm and moist air pooled up to this boundary, leading to shower and thunderstorm development by early evening. The atmosphere was unstable enough and wind shear was favorable for storms to become severe very rapidly, producing large hail and even a couple tornadoes. The confirmed tornadoes were located in Mower County, Minnesota - in and around Austin (damage path) and several miles west of LeRoy, MN.

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Radar loop of the Austin, MN tornado
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