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Multi-day, Potentially Catastrophic Heavy Rainfall and Severe Weather Event

A multi-day, potentially historic heavy rainfall event may produce catastrophic and life-threatening flooding through Saturday from the Ozarks into the Ohio River Valley. Several clusters of strong to severe storms are expected from the Southern Plains, Mid Mississippi Valley to the Ohio/Tennessee Valleys and the Mid Atlantic. Read More >

Overview

June 27, 2017 - Thunderstorms developed across northeastern Wyoming in the afternoon and strengthened as they moved into South Dakota. The storms produced very strong winds, which caused damage across the area. The Rapid City Airport measured a gust of 75 mph while the Custer County airport recorded a gust of 69 mph, one of the strongest ever at that location. Some hail accompanied these storms, with quarter-sized the largest reported. Below are photos of tree damage, the radar loop, and the list of storm reports. 

Rapid Valley Rapid Valley South of Custer South of Custer
Rapid Valley Rapid Valley South of Custer South of Custer

 

Downed tree 1 E Downtown Rapid City Tree damage in Custer Tree damage in Custer Tree damage in west Rapid
1 E Downtown Rapid City Custer Custer West Rapid
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