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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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