National Weather Service United States Department of Commerce

Overview

Severe storms with heavy rain, flash flooding, large hail, and damaging straight- line winds moved across northeastern Wyoming and western South Dakota during the afternoon and evening of July 4, 2019. Considerable damage was reported because of flooding and the straight-line winds. Fireworks shows also were cancelled or postponed because of Mother Nature's natural fireworks display. The lightning map to the right shows that there were a lot of cloud-to-ground lightning flashes across the Black Hills area.

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24-hour cloud-to-ground lightning
from 6 am July 4 to 6 am July 5, 2019
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