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Severe Thunderstorm Warning: Corson, Dewey Counties

A Severe Thunderstorm Warning is in effect for Corson and Dewey Counties, SD, until 7:45 AM CDT today, September 28, with 60 mph winds and quarter-sized hail expected; seek immediate shelter indoors.

Staff Writer
09/28/2026 · Corson & Dewey Region edition

Residents in Corson and Dewey Counties, South Dakota, must seek immediate shelter as a Severe Thunderstorm Warning is in effect until 7:45 AM CDT today, September 28. The National Weather Service (NWS) in Aberdeen, SD, issued this warning.

At 6:19 AM MDT, a severe thunderstorm was detected near Glencross, approximately 11 miles east of Timber Lake, moving northeast at 30 mph. This storm is capable of producing 60 mph wind gusts and quarter-sized hail. Expect potential hail damage to vehicles and wind damage to roofs, siding, and trees.

The storm is anticipated to be near Glencross around 6:20 AM MDT and Trail City around 6:35 AM MDT.

Actionable Information: The NWS advises all individuals in the affected areas to seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail.

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