A strong area of low pressure progressed across the Northern Rockies and lifted across western Colorado. Ample moisture and favorable orographics led to moderate to heavy snow across the mountains over a prolonged period. Moderate accumulations also occurred in some valley locations. Winds gusted in excess of 45 mph in the mountains and more than 30 mph in the valleys.

Winter Storm in SOUTHWESTERN SAN JUAN MOUNTAINS, COLORADO
From 12-DEC-22 04:00:00 to 12-DEC-22 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Generally 8 to 12 inches of snow fell across the area with locally higher amounts reported. Winds gusted up to 50 mph at times.

Winter Weather in ROAN AND TAVAPUTS PLATEAUS, COLORADO
From 12-DEC-22 05:00:00 to 14-DEC-22 03:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

An estimated 7 to 14 inches of snow fell across the area. Winds gusted up to 45 mph at times.

Winter Weather in GRAND AND BATTLEMENT MESAS, COLORADO
From 12-DEC-22 07:00:00 to 14-DEC-22 04:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Generally 5 to 12 inches of snow fell across the area.

Winter Weather in GORE AND ELK MOUNTAINS/CENTRAL MOUNTAIN VALLEYS, COLORADO
From 12-DEC-22 00:00:00 to 14-DEC-22 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Generally 6 to 12 inches of snow fell across the area. Winds gusted up to 50 mph at times.

Winter Weather in WEST ELK AND SAWATCH MOUNTAINS, COLORADO
From 12-DEC-22 02:00:00 to 14-DEC-22 03:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Generally 4 to 8 inches of snow fell across the area with locally higher amounts of up to 13 inches estimated at the Schofield Pass SNOTEL site. Winds gusted to almost 60 mph at times.

Winter Weather in FLATTOP MOUNTAINS, COLORADO
From 12-DEC-22 04:00:00 to 14-DEC-22 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Generally 12 to 17 inches of snow fell across the area.

Heavy Snow in UNCOMPAHGRE PLATEAU AND DALLAS DIVIDE, COLORADO
From 12-DEC-22 05:00:00 to 12-DEC-22 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Over a foot of snow fell across the area in less than 12 hours.

Winter Weather in NORTHWESTERN SAN JUAN MOUNTAINS, COLORADO
From 12-DEC-22 04:00:00 to 12-DEC-22 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Generally 5 to 9 inches of snow fell across the area. Winds gusted up to 45 mph at times.

Winter Weather in FOUR CORNERS / UPPER DOLORES RIVER BASIN, COLORADO
From 12-DEC-22 08:00:00 to 12-DEC-22 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Generally 2 to 4 inches of snow fell across the area, much of that in 8 hours or less. Winds gusted up to 30 mph at times.

Winter Weather in ANIMAS RIVER BASIN, COLORADO
From 12-DEC-22 08:00:00 to 12-DEC-22 16:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Generally 3 to 6 inches of snow fell across the area with locally higher amounts of more than 6 inches reported. Winds gusted up to 40 mph at times.

Winter Weather in CENTRAL YAMPA RIVER BASIN, COLORADO
From 12-DEC-22 12:00:00 to 14-DEC-22 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Generally 4 to 8 inches of snow fell across the area. Winds gusted up to 30 mph.

Winter Weather in UPPER YAMPA RIVER BASIN, COLORADO
From 12-DEC-22 16:30:00 to 14-DEC-22 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Generally 6 to 12 inches of snow fell across the area.

Heavy Snow in ELKHEAD AND PARK MOUNTAINS, COLORADO
From 12-DEC-22 08:00:00 to 14-DEC-22 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Generally 1 to 2 feet of snow fell across the area.