A strong low pressure system moved into the Four Corners Region with ample Pacific moisture streaming into the area under deep southerly flow aloft. This led to heavy snow across the southern mountains with light to moderate snow falling in the valleys. Wind gusts exceeded 45 MPH at times.

Winter Storm in SOUTHWESTERN SAN JUAN MOUNTAINS, COLORADO
From 26-DEC-19 22:00:00 to 28-DEC-19 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Widespread snowfall totals of 10 to 20 inches across the area with locally higher amounts close to 28 inches estimated at the Vallecito SNOTEL site. Snow rates exceeded 1 to 2 inches per hour at times. Winds gusted from 30 to 40 MPH with close to 90 MPH measured near 13,000 feet. The heavy snow and adverse conditions led to Red Mountain Pass along Colorado Highway 550 being closed for approximately 24 hours.

Winter Weather in NORTHWESTERN SAN JUAN MOUNTAINS, COLORADO
From 27-DEC-19 03:00:00 to 28-DEC-19 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Generally 5 to 10 inches of snow fell across the area with up to 13 inches estimated by the Slumgullion SNOTEL site. Trained spotters measured 12 to 15 inches in the vicinity of Telluride.

Winter Weather in ANIMAS RIVER BASIN, COLORADO
From 27-DEC-19 06:00:00 to 28-DEC-19 11:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Generally 2 to 6 inches of snow fell across the area with locally higher amounts up to 7 inches measured southeast of Hesperus.

Winter Weather in SAN JUAN RIVER BASIN, COLORADO
From 27-DEC-19 06:00:00 to 28-DEC-19 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

An average of 3 to 4 inches of snow fell across the area with locally higher amounts up to 8 inches measured near Chimney Rock.

Winter Weather in UNCOMPAHGRE PLATEAU AND DALLAS DIVIDE, COLORADO
From 27-DEC-19 01:00:00 to 28-DEC-19 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Generally 4 to 8 inches of snow fell across the area.

Winter Weather in FOUR CORNERS / UPPER DOLORES RIVER BASIN, COLORADO
From 27-DEC-19 00:00:00 to 28-DEC-19 13:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Generally 2 to 6 inches of snow fell across the area with locally higher amounts up to 7 inches measured northeast of Cahone. Winds gusted from 34 to 44 MPH at times.

Winter Weather in LOWER YAMPA RIVER BASIN, COLORADO
From 27-DEC-19 15:30:00 to 28-DEC-19 06:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Generally 4 to 5 inches of snow fell near Dinosaur with close to 7 inches measured at Rangely.

Winter Weather in WEST ELK AND SAWATCH MOUNTAINS, COLORADO
From 27-DEC-19 05:00:00 to 28-DEC-19 18:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Generally 5 to 9 inches of snow fell across the area with 6 inches measured in the town of Crested Butte.

Winter Weather in GRAND VALLEY, COLORADO
From 27-DEC-19 17:00:00 to 28-DEC-19 05:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Widespread snowfall totals of 1 to 2.5 inches across the area.