Sioux Falls, S.D. – Drivers and outdoor crews across South Dakota could face hazardous conditions late Saturday as strong northwest winds surge into the region, sending gusts high enough to knock around unsecured objects and make travel difficult, especially for high-profile vehicles.
According to the National Weather Service in Sioux Falls, a cold front moving through Saturday evening will flip winds to the northwest and rapidly increase speeds overnight. Gusts are expected to range from 30 to 50 mph and will persist through Sunday evening, with the strongest winds during daylight hours Sunday.
Statewide, the combination of falling temperatures and strong winds will create sharply colder conditions by Sunday morning. Afternoon warmth Saturday, with highs reaching the upper 40s to near 60 in parts of southeastern South Dakota, will give way to early Sunday highs only in the upper teens to upper 20s. Along the I-29 corridor, including Sioux Falls, Brookings, and Yankton, peak gusts around 40 to 45 mph could impact north-south travel and cause minor power disruptions.
Emergency managers urge residents to secure holiday decorations, trash bins, and farm equipment before nightfall. Drivers should keep both hands on the wheel, especially on open highways and bridges.
Winds are expected to slowly weaken Sunday night, though additional advisories may be issued if gusts intensify or linger longer than expected.
