Sioux Falls, South Dakota – Explosive thunderstorms capable of producing wind gusts up to 90 mph are expected to rip through parts of South Dakota and southwest Minnesota this evening, with the highest danger window from 4 p.m. to midnight.
According to the National Weather Service in Sioux Falls, storms are likely to begin in central South Dakota between 4–7 p.m., impacting cities such as Pierre, Huron, and Mitchell. The most dangerous activity will shift east between 7–10 p.m. along the I-29 corridor—affecting Brookings, Sioux Falls, and Worthington—then move into southwest Minnesota between 9 p.m. and midnight.
Counties under the highest threat include Codington, Deuel, Brookings, and Lincoln in SD, and Nobles and Murray in MN. Level 4 out of 5 severe risk zones stretch north of I-90, where large hail over 2 inches, destructive winds, and possible tornadoes could develop rapidly. Flash flooding is also possible in localized areas.
Residents should secure outdoor items, charge electronic devices, and have multiple ways to receive emergency alerts. Travel after dark is discouraged due to fast-moving storms and debris risks.
More warnings or watches may be issued through the night. Stay weather-aware and check for updates hourly.
