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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

A vigorous late-season storm system raced across northeast South Dakota and west central Minnesota during the early evening on Tuesday, September 19th. Many atmospheric ingredients, including abundant moisture, instability, wind shear and forcing, came together for rapid and intense thunderstorm development. Severe weather in the form of large hail and damaging winds, as well as tornadoes resulted. Locally heavy rain also affected the area, while those west of a line generally from Faulkton to Chamberlain remained dry.

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Strong to severe thunderstorms across the region, as seen from GOES-16 at 9 pm
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