Winter Storm Warning Mason City, Iowa

Winter alerts in Mason City, newest first, in effect or ended
Alert	State	Severity	Places
Extreme Cold WatchEnded Wind chills as low as 40 below zero. Issued January 20 Ended January 22, 2026	Iowa	Severe	488 places Mason City Des Moines West Des Moines Ankeny Waterloo Ames Urbandale Cedar Falls Marshalltown Ottumwa and 478 more