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Winter Storm Warning Alta, Wyoming
Alert types
Winter alerts in Alta, newest first, in effect or ended
Alert
State
Severity
Places
Ended 6 to 15 inches of snow are possible, gusts up to 55 mph.
Issued April 14
Ended April 15, 2026
Severe
Ended 12 to 18 inches of snow possible with locally up to 24 inches in the western slopes of the Tetons, gusts up to 40 mph.
Issued April 1
Ended April 1, 2026
Severe
Ended 10 to 15 inches of snow over southern portions and far eastern portions; 3 to 6 inches in central portions and 1 to 4 inches in Lamar Valley and Mammoth, gusts up to 50 mph.
Issued March 13
Ended March 13, 2026
Severe
Ended 1 to 2 feet of snow over the higher elevations of southern and eastern YNP, gusts up to 50 mph.
Issued March 11
Ended March 14, 2026
Severe
Ended 12 to 18 inches of snow over the Pitchstone Plateau of southwest Yellowstone National Park, 6 to 12 inches in central portions of Yellowstone, and of 1 to 4 inches in Lamar Valley and Mammoth.
Issued February 22
Ended February 23, 2026
Severe
Ended 6 to 12 inches of snow above 8000 feet possible, with amounts greater than 16 inches at the highest elevations.
Issued December 15
Ended December 16, 2025
Severe
Ended 9 to 18 inches of snow possible, gusts up to 45 mph.
Issued December 8
Ended December 8, 2025
Severe
Ended 10 to 16 inches of snow across much of the area with the highest elevations seeing 2 to 3 feet of snow, gusts up to 40 mph.
Issued December 3
Ended December 4, 2025
Severe
Ended 8 to 14 inches of snow possible, gusts up to 40 mph.
Issued October 24
Ended October 25, 2025
Severe
Wyoming