A vigorous Pacific trough produced significant to heavy snowfall in most mountain areas and in some higher elevation valleys in western Colorado.

Winter Weather in PARADOX VALLEY / LOWER DOLORES RIVER BASIN, COLORADO
From 14-DEC-15 08:00:00 to 15-DEC-15 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall amounts of 2 to 4 inches were measured across the area.

Heavy Snow in DEBEQUE TO SILT CORRIDOR, COLORADO
From 14-DEC-15 07:00:00 to 15-DEC-15 04:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 4 to 8 inches were measured across the area.

Winter Weather in UPPER GUNNISON RIVER VALLEY, COLORADO
From 14-DEC-15 09:00:00 to 15-DEC-15 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall amounts of 3 to 6 inches were measured across the western portion of the area, with locally up to 10 inches at Black Canyon of the Gunnison National Park.  In contrast, the eastern portion of the area received less than an inch of snow.

Winter Weather in UNCOMPAHGRE PLATEAU AND DALLAS DIVIDE, COLORADO
From 14-DEC-15 10:00:00 to 15-DEC-15 10:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Snowfall amounts of 3 to 9 inches with wind gusts of 20 to 30 mph were measured across the area. A locally higher amount of 18 inches was measured at the Columbine Pass SNOTEL site.

Winter Weather in GORE AND ELK MOUNTAINS/CENTRAL MOUNTAIN VALLEYS, COLORADO
From 14-DEC-15 11:00:00 to 15-DEC-15 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall amounts of 4 to 10 inches were measured across the area. Locally higher amounts of 12 and 17 inches occurred at Aspen Mountain Ski Area and Snowmass Ski Area, respectively.

Winter Weather in WEST ELK AND SAWATCH MOUNTAINS, COLORADO
From 14-DEC-15 10:00:00 to 15-DEC-15 10:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snowfall amounts of 2 to 12 inches with gusts 20 to 30 mph were measured across the area. Locally higher amounts of 18 to 22 inches occurred in the McClure Pass area.

Winter Weather in NORTHWESTERN SAN JUAN MOUNTAINS, COLORADO
From 14-DEC-15 08:00:00 to 16-DEC-15 01:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Snowfall amounts of 5 to 12 inches were measured across the area. A locally higher amount of 19 inches was measured at the Black Mesa SNOTEL site. Wind gusts of 25 to 40 mph were measured except at ridgetops where locally higher gusts occurred including 62 mph at the top of Telluride Ski Area and 66 mph on Mt. Putney.

Winter Storm in GRAND AND BATTLEMENT MESAS, COLORADO
From 14-DEC-15 09:00:00 to 15-DEC-15 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall amounts of 10 to 20 inches were measured across the area above 8000 feet with 5 to 10 inches measured below 8000 feet.

Winter Storm in FLATTOP MOUNTAINS, COLORADO
From 14-DEC-15 07:00:00 to 15-DEC-15 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Snowfall amounts of 12 to 18 inches were measured across the area.

Winter Storm in ELKHEAD AND PARK MOUNTAINS, COLORADO
From 14-DEC-15 09:00:00 to 16-DEC-15 09:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall amounts of 10 to 20 inches were measured across the area. Wind gusts 20 to 40 mph occurred which led to extensive blowing and drifting snow at Rabbit Ears Pass.

Winter Storm in ROAN AND TAVAPUTS PLATEAUS, COLORADO
From 14-DEC-15 07:00:00 to 15-DEC-15 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snowfall amounts of 12 to 14 inches were measured across the area above 7500 feet with 9 to 12 inches measured below 7500 feet. Wind gusts of 20 to 30 mph occurred. Douglas Pass was closed for about an hour due to a blocked semi truck near the end of the storm.

Heavy Snow in FOUR CORNERS / UPPER DOLORES RIVER BASIN, COLORADO
From 14-DEC-15 08:00:00 to 15-DEC-15 14:30:00 (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 ANIMAS RIVER BASIN, COLORADO
From 14-DEC-15 09:00:00 to 15-DEC-15 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

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

Heavy Snow in SAN JUAN RIVER BASIN, COLORADO
From 14-DEC-15 10:00:00 to 15-DEC-15 23:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 5 to 7 inches were measured across the area.

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

Snowfall amounts of 3 to 6 inches were measured in the North Fork Valley, while 1 to 3 inches were measured across the remainder of the area.

Heavy Snow in UPPER YAMPA RIVER BASIN, COLORADO
From 14-DEC-15 12:00:00 to 15-DEC-15 10:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 9 to 15 inches were measured across the area.

Heavy Snow in LOWER YAMPA RIVER BASIN, COLORADO
From 14-DEC-15 07:00:00 to 15-DEC-15 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall amounts of 6 to 8 inches were measured across the area.

Heavy Snow in CENTRAL COLORADO RIVER BASIN, COLORADO
From 14-DEC-15 10:00:00 to 15-DEC-15 19:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 5 to 8 inches were measured across the area.

Heavy Snow in CENTRAL YAMPA RIVER BASIN, COLORADO
From 14-DEC-15 07:30:00 to 15-DEC-15 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall amounts of 5 to 6 inches were measured across the area.