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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 Sunday, October 20, 2019, a strong storm brought heavy snow to the Black Hills, with a mix of rain and snow to the foothills. Note how the snow cover (red in image below) is strongly confined to the Black Hills and other higher terrain areas to the northwest. Travel became difficult in parts of the northern Black Hills per the webcam images below. The storm also produced very strong winds, with gusts of 60 to 70 mph in locations. In addition, an unofficial gust of 83 mph was reported 1 mile east-southeast of Custer at 509 pm MDT.

Satellite image of snow on ground
Satellite image at 10:11 am on Monday, October 21, 2019 that shows snow on the ground (red areas), snow-free ground (green areas), and clouds (purple areas)

 

Satellite image of snow on ground

 

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