National Weather Service United States Department of Commerce

Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >

Overview

On June 4, 2020, severe thunderstorms brought very large hail and damaging winds to portions of northeastern Wyoming and western South Dakota. Hail of tennis ball to baseball sized was observed from near Spearfish to portions of Rapid City, with hail larger than baseballs observed south of Faith. Winds over 70 mph damaged structures northwest of Spearfish and north of Ellsworth AFB. 

 

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