A deep plume of Pacific moisture overran a cold airmass east of the Continental Divide resulting in areas of heavy snow just before the Thanksgiving holiday. Snow amounts in excess of 6 inches were common. Gusty winds created areas of blowing and drifting snow.

Winter Storm in NORTH ROCKY MOUNTAIN FRONT, MONTANA
From 24-NOV-15 11:00:00 to 25-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Roads were snow-covered and icy causing hazardous travel conditions during a high-impact period of the Thanksgiving holiday travel period.

Winter Storm in NORTH ROCKY MOUNTAIN FRONT, MONTANA
From 24-NOV-15 11:00:00 to 25-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Roads were snow-covered and icy causing hazardous travel conditions during a high-impact period of the Thanksgiving holiday travel period.

Winter Storm in SOUTHERN ROCKY MOUNTAIN FRONT, MONTANA
From 24-NOV-15 11:00:00 to 25-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Roads were snow-covered and icy causing hazardous travel conditions during a high-impact period of the Thanksgiving holiday travel period.

Winter Storm in JEFFERSON, MONTANA
From 24-NOV-15 11:00:00 to 25-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nine inches of snow fell at Clancy 2N.

Winter Storm in CASCADE, MONTANA
From 24-NOV-15 11:00:00 to 25-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Eight inches of snow fell at Great Falls 4S. Also, eight inches of snow fell at Ulm 11SSE.

Winter Storm in BEAVERHEAD, MONTANA
From 24-NOV-15 11:00:00 to 25-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Measured snowfall 3.5 inches. Roads were snow-covered and icy causing difficult travel conditions.

Winter Storm in MADISON, MONTANA
From 24-NOV-15 11:00:00 to 25-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Roads were snow-covered and icy causing hazardous travel conditions during a high-impact period of the Thanksgiving holiday travel period.

Winter Storm in EASTERN GLACIER, MONTANA
From 24-NOV-15 11:00:00 to 25-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Roads were snow-covered and icy causing hazardous travel conditions during a high-impact period of the Thanksgiving holiday travel period.

Winter Storm in EASTERN PONDERA, MONTANA
From 24-NOV-15 11:00:00 to 25-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Roads were snow-covered and icy causing hazardous travel conditions during a high-impact period of the Thanksgiving holiday travel period.

Winter Storm in EASTERN TETON, MONTANA
From 24-NOV-15 11:00:00 to 25-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Roads were snow-covered and icy causing hazardous travel conditions during a high-impact period of the Thanksgiving holiday travel period.

Winter Storm in SOUTHERN LEWIS AND CLARK, MONTANA
From 24-NOV-15 11:00:00 to 25-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous vehicle accidents due to icy and snow-covered roads between Wolf Creek and Helena as well as low visibility in heavy snow. KHLN reported less than 0.50 mile visibility between 1100 and 1600 LST.

Winter Storm in GALLATIN, MONTANA
From 24-NOV-15 11:00:00 to 25-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Observer 1.5 miles SSE of Bozeman measured 5.5 inches of snow. Roads were snow-covered and icy causing difficult travel conditions during a high-impact period of the Thanksgiving holiday travel period.

Winter Storm in BROADWATER, MONTANA
From 24-NOV-15 11:00:00 to 25-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Roads were snow-covered and icy causing hazardous travel conditions during a high-impact period of the Thanksgiving holiday travel period.

Winter Storm in FERGUS, MONTANA
From 24-NOV-15 11:00:00 to 25-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Six inches of snow fell at Lewistown 1SW.

Winter Storm in JUDITH BASIN, MONTANA
From 24-NOV-15 11:00:00 to 25-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Roads were snow-covered and icy causing hazardous travel conditions during a high-impact period of the Thanksgiving holiday travel period.

Winter Storm in MADISON, MONTANA
From 24-NOV-15 11:00:00 to 25-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Roads were snow-covered and icy causing hazardous travel conditions during a high-impact period of the Thanksgiving holiday travel period.