Winter Storm Warning Swan, Iowa

Winter alerts in Swan, newest first, in effect or ended
Alert	State	Severity	Places
Winter Weather AdvisoryEnded Blowing snow. Issued March 16 Ended March 16, 2026	Iowa	Moderate	488 places Swan Des Moines West Des Moines Ankeny Waterloo Ames Urbandale Cedar Falls Marshalltown Mason City and 478 more
Winter Weather AdvisoryEnded 2 to 5 inches of snow. Issued February 18 Ended February 20, 2026	Iowa	Moderate	408 places Swan Des Moines West Des Moines Ankeny Waterloo Ames Urbandale Cedar Falls Marshalltown Mason City and 398 more
Winter Weather AdvisoryEnded 2 to 4 inches of snow. Issued December 12 Ended December 13, 2025	Iowa	Moderate	232 places Swan Des Moines West Des Moines Ankeny Ames Urbandale Marshalltown Ottumwa Fort Dodge Johnston and 222 more
Winter Weather AdvisoryEnded 1 to 3 inches of snow, around a light glaze of ice. Issued December 11 Ended December 11, 2025	Iowa	Moderate	307 places Swan Des Moines West Des Moines Ankeny Waterloo Ames Urbandale Cedar Falls Marshalltown Mason City and 297 more
Winter Weather AdvisoryEnded 2 to 4 inches of snow. Issued November 30 Ended December 1, 2025	Iowa	Moderate	89 places Swan Ottumwa Oskaloosa Pella Knoxville Osceola Centerville Chariton Albia Bloomfield and 79 more
Winter Weather AdvisoryEnded Gusts up to 35 mph. Issued November 30 Ended November 30, 2025	Iowa	Moderate	232 places Swan Des Moines West Des Moines Ankeny Waterloo Ames Urbandale Cedar Falls Marshalltown Mason City and 222 more