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Locally Heavy Rainfall for the Carolinas; Thunderstorms and Fire Weather Concerns for Intermountain West

Heavy rainfall from scattered thunderstorms is expected across the Southwest, Intermountain West, and Plains. Isolated dry thunderstorms may initiate additional fires across the west. The coastal Carolinas may experience flash floods in the coming days due to repeated thunderstorms. Additionally, a wave of intense summer heat will hit the Southern Plains and central Gulf Coast States this 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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