A phenomena-based heavy snow event occurred in far southwest Montana including the West Yellowstone/Big Sky areas. In addition, heavy snow fell in areas above 5000 feet along the Rocky Mountain Front. High winds were also seen across a large portion of Central Montana.

High Wind in JEFFERSON, MONTANA
From 02-DEC-12 16:00:00 to 02-DEC-12 17:00:00 (MST-7)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High wind gusts measured at 52KT (61MPH), and high sustained winds of 26KT (30MPH) were reported in Boulder, MT.

High Wind in JUDITH BASIN, MONTANA
From 03-DEC-12 03:30:00 to 03-DEC-12 04:30:00 (MST-7)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High wind gusts measured at 53KT (63MPH) were reported 7 miles E of Geyser, MT at the Bravo RAWS.

High Wind in JUDITH BASIN, MONTANA
From 03-DEC-12 03:30:00 to 03-DEC-12 04:30:00 (MST-7)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

High wind gust measured at 53KT (63MPH) was reported 2 miles NW of Windham, MT.

High Wind in SOUTHERN ROCKY MOUNTAIN FRONT, MONTANA
From 01-DEC-12 03:00:00 to 01-DEC-12 05:00:00 (MST-7)
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds measured at 58KT (67MPH) were reported 13 miles W of Bynum, MT at Dellwo.

Heavy Snow in GALLATIN, MONTANA
From 01-DEC-12 00:00:00 to 03-DEC-12 05:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Black Bear SNOTEL measures 12-hour snowfall of 9.0 inches. Elevation 8170 feet.

Heavy Snow in NORTH ROCKY MOUNTAIN FRONT, MONTANA
From 01-DEC-12 00:00:00 to 03-DEC-12 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Pike Creek SNOTEL measures 12-hour snowfall of 6.0 inches. Elevation 5928 feet.

High Wind in MADISON, MONTANA
From 02-DEC-12 04:00:00 to 02-DEC-12 05:00:00 (MST-7)
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

High winds measured at 58KT (67MPH) were reported 4 miles NNE of McAllister, MT at Norris Hill.

High Wind in SOUTHERN ROCKY MOUNTAIN FRONT, MONTANA
From 01-DEC-12 15:00:00 to 01-DEC-12 18:00:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds measured at 50KT (58MPH) were reported 14 miles W of Bynum, MT.

High Wind in NORTH ROCKY MOUNTAIN FRONT, MONTANA
From 01-DEC-12 18:00:00 to 01-DEC-12 19:00:00 (MST-7)
Magnitude: 35.00 MS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High sustained winds measured at 35KT (40MPH) were reported 1 mile NW of Heart Butte, MT.

High Wind in NORTH ROCKY MOUNTAIN FRONT, MONTANA
From 01-DEC-12 20:00:00 to 01-DEC-12 22:00:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

High winds measured at 50KT (58MPH) were reported 1 miles E of East Glacier Park, MT at Two Medicine Bridge DOT sensor.

High Wind in MADISON, MONTANA
From 02-DEC-12 02:00:00 to 02-DEC-12 03:00:00 (MST-7)
Magnitude: 35.00 MS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Numerous high sustained winds measured at 35KT (40MPH) were reported 4 miles NNE of McAllister, MT. Gusts up to 48KT (54MPH) were reported as well.

High Wind in GALLATIN, MONTANA
From 02-DEC-12 08:00:00 to 02-DEC-12 09:00:00 (MST-7)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High winds measured at 51KT (59MPH) were reported 1 mile SW of Three Forks, MT at the Three Forks AWOS.

High Wind in MADISON, MONTANA
From 02-DEC-12 08:00:00 to 02-DEC-12 09:00:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

High winds measured at 50KT (58MPH) were reported 18 miles WNW of West Yellowstone, MT at Raynolds Pass DOT sensor.

High Wind in BEAVERHEAD, MONTANA
From 02-DEC-12 09:00:00 to 02-DEC-12 10:00:00 (MST-7)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

High winds measured at 51KT (59MPH) were reported at Monida Pass DOT sensor.

High Wind in BROADWATER, MONTANA
From 02-DEC-12 10:30:00 to 02-DEC-12 11:30:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

High winds measured at 50KT (58MPH) were reported 8 miles W of Townsend, MT at the Elkhorn RAWS site.

High Wind in BEAVERHEAD, MONTANA
From 02-DEC-12 13:00:00 to 02-DEC-12 15:00:00 (MST-7)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

KBZK tweets report of downed power lines and snapped power poles due to high winds in Bozeman. (Specific location reported as Goldstein Lane).