A large Pacific trough and associated cold front moved into the region from the northwest and produced significant snowfall and blowing snow in many mountain areas and a some lower elevation zones in western Colorado.

Winter Weather in ELKHEAD AND PARK MOUNTAINS, COLORADO
From 08-DEC-12 06:00:00 to 08-DEC-12 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall accumulations of 6 to 10 inches were measured across the area.  Additionally, wind gusts of 30 to 50 mph produced areas of blowing and drifting snow.

Winter Storm in GORE AND ELK MOUNTAINS/CENTRAL MOUNTAIN VALLEYS, COLORADO
From 08-DEC-12 15:00:00 to 09-DEC-12 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall accumulations of 8 to 15 inches were measured across the area, with locally higher amounts up to two feet at mountaintops in the Aspen area.  Additionally, wind gusts of 25 to 45 mph produced areas of blowing and drifting snow.

Winter Weather in FLATTOP MOUNTAINS, COLORADO
From 08-DEC-12 13:00:00 to 09-DEC-12 01:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Snowfall accumulations around 5 inches were measured over at least half of the area.  Additionally, wind gusts of 30 to 50 mph produced areas of blowing and drifting snow.

Winter Weather in GRAND AND BATTLEMENT MESAS, COLORADO
From 08-DEC-12 19:00:00 to 09-DEC-12 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall accumulations of 7 to 9 inches were measured across the area.  Additionally, wind gusts of 25 to 35 mph produced localized blowing and drifting snow.

Winter Weather in UNCOMPAHGRE PLATEAU AND DALLAS DIVIDE, COLORADO
From 09-DEC-12 00:00:00 to 09-DEC-12 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Snowfall accumulations of 6 to 10 inches were measured above the 8000 foot level.  Additionally, wind gusts of 25 to 35 mph produced localized blowing and drifting snow.

Winter Weather in WEST ELK AND SAWATCH MOUNTAINS, COLORADO
From 08-DEC-12 11:00:00 to 09-DEC-12 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall accumulations of 5 to 12 inches were measured across the area, with locally higher amounts including 12 inches on Schofield Pass.  Additionally, wind gusts of 20 to 40 mph produced areas of blowing and drifting snow.

Winter Weather in NORTHWESTERN SAN JUAN MOUNTAINS, COLORADO
From 09-DEC-12 04:00:00 to 09-DEC-12 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snowfall accumulations of 3 to 8 inches were measured across the area.  Additionally, wind gusts of 30 to 50 mph produced areas of blowing and drifting snow.

Winter Weather in UPPER YAMPA RIVER BASIN, COLORADO
From 08-DEC-12 11:00:00 to 08-DEC-12 22:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall accumulations of 4 to 8 inches were measured across the area.  Additionally, wind gusts of 20 to 30 mph produced localized blowing and drifting snow.

Winter Weather in CENTRAL COLORADO RIVER BASIN, COLORADO
From 08-DEC-12 18:00:00 to 09-DEC-12 03:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall accumulations of 2 to 4 inches were measured across the area.  Additionally, wind gusts of 20 to 35 mph produced localized blowing and drifting snow.

Winter Weather in CENTRAL GUNNISON AND UNCOMPAHGRE RIVER BASIN, COLORADO
From 09-DEC-12 00:00:00 to 09-DEC-12 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall accumulations of 3 to 4 inches were measured across the lower elevations of eastern Montrose County.  Additionally, wind gusts of 20 to 30 mph produced localized blowing snow.

Winter Weather in UPPER GUNNISON RIVER VALLEY, COLORADO
From 08-DEC-12 23:00:00 to 09-DEC-12 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall accumulations of 2 to 4 inches were measured across the area, with locally higher amounts including 8 inches at Black Canyon of the Gunnison National Park.  Additionally, wind gusts of 20 to 35 mph produced localized blowing and drifting snow.