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Heavy Rainfall and Flash Flood Threats Shift From Southern Plains to Lower Mississippi Valley; Elevated to Critical Fire Concerns Out West

Heavy to excessive rainfall with flash flood concerns will shift from the southern Plains into the Lower Mississippi Valley. Elevated to Critical Fire weather threats will linger through the weekend across the Great Basin and central Rockies. Finally, Major to Record river flooding will continue in portions of the Midwest and across parts of North and South Carolina this weekend. 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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