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Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Great Lakes

Thunderstorms with strong wind gusts and hail will be possible today from Michigan into the Lower Great Lakes region. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Numerous daily record highs and warm lows are likely. Read More >

Overview

Severe thunderstorms moved across northeastern Wyoming and western through central South Dakota late Tuesday afternoon (July 16th), continuing past midnight into early Wednesday morning (July 17th). A tornado occurred between Rozet and Moorcroft, Wyoming (south of Interstate-90); flooding was reported in Butte County, South Dakota, washing out some roads; lightning struck near the NWS Doppler radar north of New Underwood, South Dakota, causing a temporary outage; and a brief tornado occurred north-northwest of Vetal in Bennett County, South Dakota. The cloud-to-ground lightning plot to the right shows that most of the area experienced thunderstorms during this event.

 

Here are a couple links to videos of the Wyoming tornado (video #1 and video #2).

24-h CG lightning ending 6 am July 17th, 2019
24-hour cloud-to-ground lightning from 6 am July 16 to 6 am July 17, 2019
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