Winter Storm Warning Ulm, Montana

Winter alerts in Ulm, newest first, in effect or ended
Alert	State	Severity	Places
Winter Weather AdvisoryEnded 3 to 8 inches of snow, gusts up to 35 mph. Issued March 31 Ended April 3, 2026	Montana	Moderate	69 places Ulm Great Falls Lewistown Malmstrom AFB Montana City Clancy Sun Prairie Boulder Lincoln Black Eagle and 59 more
Winter Weather AdvisoryEnded 3 to 6 inches of snow, gusts up to 40 mph. Issued March 8 Ended March 9, 2026	Montana	Moderate	146 places Ulm Great Falls Havre Lewistown Malmstrom AFB Shelby Cut Bank North Browning Conrad South Browning and 136 more
Winter Weather AdvisoryEnded 2 to 6 inches of snow, with up to 10 inches at mountain peaks. Issued February 15 Ended February 17, 2026	Montana	Moderate	146 places Ulm Great Falls Havre Helena Valley West Central Malmstrom AFB Big Sky Shelby Cut Bank Montana City North Browning and 136 more
Winter Weather AdvisoryEnded Around a light glaze of ice. Issued December 24 Ended December 25, 2025	Montana	Moderate	88 places Ulm Great Falls Havre Malmstrom AFB Shelby Conrad Choteau Sun Prairie Fort Belknap Agency Fort Benton and 78 more
Winter Weather AdvisoryEnded 2 to 4 inches of snow on Marias Pass, and up to 7 inches at ridge tops. Issued December 9 Ended December 10, 2025	Montana	Moderate	161 places Ulm Great Falls Helena Havre Helena Valley Southeast Helena Valley West Central Lewistown Helena Valley Northwest Malmstrom AFB Helena Valley Northeast and 151 more
Winter Weather AdvisoryEnded 2 to 5 inches of snow, gusts up to 40 mph. Issued November 30 Ended December 3, 2025	Montana	Moderate	98 places Ulm Great Falls Helena Helena Valley Southeast Helena Valley West Central Lewistown Helena Valley Northwest Malmstrom AFB Helena Valley Northeast Big Sky and 88 more