A moist Pacific trough and associated cold front brought significant to heavy snow to the mountains and higher valleys of western Colorado.

Winter Weather in CENTRAL COLORADO RIVER BASIN, COLORADO
From 12-DEC-15 06:30:00 to 12-DEC-15 19:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Snowfall amounts of 1 to 3 inches were measured across the area.

Winter Weather in ELKHEAD AND PARK MOUNTAINS, COLORADO
From 10-DEC-15 21:00:00 to 12-DEC-15 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Snowfall amounts of 5 to 12 inches were measured across the area.

Winter Weather in FLATTOP MOUNTAINS, COLORADO
From 11-DEC-15 04:00:00 to 12-DEC-15 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Snowfall amounts of 4 to 11 inches were measured across the area.

Winter Weather in ROAN AND TAVAPUTS PLATEAUS, COLORADO
From 11-DEC-15 05:00:00 to 12-DEC-15 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snowfall amounts around 5 inches were measured above the 7000 foot level.

Winter Weather in GRAND AND BATTLEMENT MESAS, COLORADO
From 11-DEC-15 17:00:00 to 12-DEC-15 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snowfall amounts of 6 to 12 inches were measured across the area.

Winter Weather in GORE AND ELK MOUNTAINS/CENTRAL MOUNTAIN VALLEYS, COLORADO
From 11-DEC-15 01:00:00 to 12-DEC-15 19:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Snowfall amounts of 3 to 7 inches were measured across the area.

Winter Weather in WEST ELK AND SAWATCH MOUNTAINS, COLORADO
From 12-DEC-15 02:00:00 to 12-DEC-15 21:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Snowfall amounts of 4 to 6 inches were measured across most of the area.

Winter Weather in NORTHWESTERN SAN JUAN MOUNTAINS, COLORADO
From 11-DEC-15 19:00:00 to 12-DEC-15 22:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snowfall amounts of 6 to 12 inches were measured across the area.  Locally higher amounts included 14 inches at Slumgullion Pass.  Winds gusts of 20 to 40 mph produced areas of blowing and drifting snow.

Winter Weather in SOUTHWESTERN SAN JUAN MOUNTAINS, COLORADO
From 11-DEC-15 18:00:00 to 12-DEC-15 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snowfall amounts of 7 to 13 inches were measured across the area.  Locally higher amounts included 15 inches at the Beartown SNOTEL site.  Winds gusts of 20 to 40 mph produced areas of blowing and drifting snow.  Even stronger wind gusts of 50 to 65 mph were measured on ridgetops.

Winter Weather in UPPER YAMPA RIVER BASIN, COLORADO
From 11-DEC-15 02:00:00 to 12-DEC-15 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 5 to 12 inches were measured across the area.

Heavy Snow in LOWER YAMPA RIVER BASIN, COLORADO
From 11-DEC-15 01:00:00 to 12-DEC-15 10:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall amounts of 5 to 10 inches were measured across the area.

Heavy Snow in CENTRAL YAMPA RIVER BASIN, COLORADO
From 11-DEC-15 00:00:00 to 12-DEC-15 18:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall amounts of 5 to 12 inches were measured across the area.

Winter Weather in UPPER GUNNISON RIVER VALLEY, COLORADO
From 12-DEC-15 03:00:00 to 12-DEC-15 22:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 3 to 6 inches were measured across the area.

Winter Weather in DEBEQUE TO SILT CORRIDOR, COLORADO
From 11-DEC-15 20:00:00 to 12-DEC-15 20:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 3 to 5 inches were measured across the area.  Locally higher amounts included 7 inches at Silt.

Winter Weather in ANIMAS RIVER BASIN, COLORADO
From 12-DEC-15 01:30:00 to 12-DEC-15 20:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 2 to 5 inches were measured across the area.

Winter Weather in SAN JUAN RIVER BASIN, COLORADO
From 11-DEC-15 23:30:00 to 12-DEC-15 19:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 3 to 4 inches were measured across the area.

Winter Weather in UNCOMPAHGRE PLATEAU AND DALLAS DIVIDE, COLORADO
From 11-DEC-15 21:00:00 to 12-DEC-15 03:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Snowfall amounts of 3 to 7 inches were measured across the area.