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Storm Impacting the Northwest U.S.; Fire Weather Conditions in Southern California; Severe Weather in the South

A Pacific storm is bringing areas of low elevation rain, moderate to heavy mountain snow, and high winds to the Northwest. Strong Santa Ana winds and very dry conditions are producing elevated to critical fire weather conditions in southern California. Isolated strong to severe thunderstorms are possible through early Wednesday morning across parts of northeast Texas into western Tennessee. Read More >

Overview

A line of severe thunderstorms developed across south central South Dakota late in the evening on September 16 and moved across southeastern South Dakota and into northwestern Iowa and southwestern Minnesota. Wind gusts of 60 to 80 mph were reported across the region. The worst damage was reported around Humboldt, South Dakota and Sheldon, Iowa.

Image Infrared Satellite loop of storms moving across the Northern Plains on the evening of September 16, 2021
Radar loop of severe thunderstorms moves across eastern South Dakota into western Minnesota and Iowa on September 16-17. Satellite loop showing severe thunderstorms move from South Dakota into Minnesota and Iowa.  The yellow and orange colors and the coldest cloud tops and where the heaviest rain would be located. 
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