Winter Storm Warning Ethan, South Dakota

Winter alerts in Ethan, newest first, in effect or ended
Alert	State	Severity	Places
Extreme Cold WatchEnded Wind chills as low as 35 below zero. Issued January 20 Ended January 22, 2026	South Dakota	Severe	197 places Ethan Sioux Falls Brookings Mitchell Yankton Huron Vermillion Brandon Harrisburg Madison and 187 more