Sioux Falls, South Dakota – Scattered severe thunderstorms are expected to sweep across southeastern South Dakota and northeastern Nebraska late Tuesday, bringing threats of large hail, damaging wind gusts, and heavy rainfall that could disrupt overnight travel and outdoor plans.
According to the National Weather Service in Sioux Falls, a Level 2 “Slight Risk” has been issued from 7 p.m. Tuesday through 4 a.m. Wednesday, with storms forming in central South Dakota during the late afternoon and tracking eastward through the night. While the risk of tornadoes remains low, forecasters caution that one or two spin-ups can’t be ruled out.
Cities like Sioux Falls, Yankton, Mitchell, and Brookings lie in the primary risk zone. Campers and rural residents are urged to have weather radios or alerts enabled on mobile devices, especially since storms may strike after midnight. Roads along I-29 and Highway 81 could become hazardous during peak storm activity.
This event follows a quiet early July, but the setup resembles past midsummer outbreaks, with warm, moist air feeding into a strong upper-level disturbance. Stay weather-aware and ready to take shelter if warnings are issued overnight.
⚠️ Severe weather risk continues through early Wednesday morning. Additional updates expected Tuesday afternoon.


