Sioux Falls, S.D. – Severe thunderstorms could sweep across South Dakota Wednesday evening, bringing damaging winds, large hail, and heavy rain. The National Weather Service has issued a marginal risk alert for most of the state, with the strongest impacts expected from western-central into eastern South Dakota.
According to the National Weather Service in Sioux Falls, storms may develop in western South Dakota by Wednesday afternoon before merging into a stronger complex as they track eastward. In southeast South Dakota, including areas near Sioux Falls, primary hazards include hail up to half-dollar size, wind gusts reaching 70 mph, and locally heavy rainfall.
Drivers are urged to watch for sudden downpours and wind gusts that could make travel hazardous, particularly along I-90 and surrounding highways. Outdoor events scheduled for Wednesday evening may need to be postponed or moved indoors due to lightning and high wind risks. Residents are encouraged to secure outdoor items and ensure mobile devices are charged in case of power outages…