A broad upper trough over the western United States initially brought snow to northwest Colorado.  As the trough deepened over the west, the main area of snowfall transitioned to southwest Colorado as the flow aloft became southwesterly.

Winter Storm in NORTHWESTERN SAN JUAN MOUNTAINS, COLORADO
From 22-FEB-15 01:00:00 to 23-FEB-15 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snowfall amounts of 14 to 26 inches were measured across the area.  Locally higher amounts included 30 inches on Red Mountain Pass and 29 inches at Telluride Ski Area.  Wind gusts of 20 to 40 mph produced areas of blowing and drifting snow.

Heavy Snow in WEST ELK AND SAWATCH MOUNTAINS, COLORADO
From 21-FEB-15 09:00:00 to 23-FEB-15 21:00:00 (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.

Winter Storm in UNCOMPAHGRE PLATEAU AND DALLAS DIVIDE, COLORADO
From 22-FEB-15 08:00:00 to 23-FEB-15 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 10 to 20 inches were measured across most of the area.  Wind gusts of 20 to 30 mph produced some areas of blowing and drifting snow.

Heavy Snow in CENTRAL GUNNISON AND UNCOMPAHGRE RIVER BASIN, COLORADO
From 22-FEB-15 09:00:00 to 23-FEB-15 11:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 5 to 9 inches were measured in the lower elevations of Delta County and 10 to 18 inches in the lower elevations of eastern Montrose County. Many schools were closed in the area.  The 15.1 inches of snow measured at the Montrose official cooperative observation station was the third highest 24 hour snowfall total ever measured for that location since records began in 1895.

Winter Weather in GORE AND ELK MOUNTAINS/CENTRAL MOUNTAIN VALLEYS, COLORADO
From 20-FEB-15 07:00:00 to 23-FEB-15 09:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Snowfall amounts of 6 to 10 inches were measured across the area.  Locally higher amounts included 20 inches at Snowmass Ski Area, 15 inches at Aspen Mountain Ski Area, 14 inches at Independence Pass, and 13 inches at Sunlight Ski Area.

Winter Storm in SOUTHWESTERN SAN JUAN MOUNTAINS, COLORADO
From 22-FEB-15 00:00:00 to 24-FEB-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snowfall amounts of 1 to 3 feet were measured across the area.  Locally higher amounts included 41 inches at the Spud Mountain SNOTEL site and 39 inches at the Silverton Mountain Ski Area.  Wind gusts of 20 to 40 mph produced areas of blowing and drifting snow.

Winter Weather in GRAND AND BATTLEMENT MESAS, COLORADO
From 22-FEB-15 07:00:00 to 23-FEB-15 19:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Snowfall amounts of 6-9 inches were measured across the area.

Heavy Snow in SAN JUAN RIVER BASIN, COLORADO
From 22-FEB-15 00:00:00 to 24-FEB-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 16 to 22 inches were measured across the area.

Heavy Snow in ANIMAS RIVER BASIN, COLORADO
From 21-FEB-15 22:30:00 to 23-FEB-15 22:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 10 to 22 inches were measured across the area.  Many schools were closed during this event.

Heavy Snow in FOUR CORNERS / UPPER DOLORES RIVER BASIN, COLORADO
From 21-FEB-15 22:30:00 to 23-FEB-15 22:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 8 to 18 inches were measured across the area.  Locally higher amounts included 23 inches at Dove Creek and Yellowjacket, and 20 inches near Mancos.

Winter Weather in GRAND VALLEY, COLORADO
From 22-FEB-15 13:00:00 to 23-FEB-15 11:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 1 to 2 inches were measured across much of the area with up to 4 inches near the Delta-Mesa County line.  Roads were slick and there were a number of vehicle accidents.

Heavy Snow in UPPER YAMPA RIVER BASIN, COLORADO
From 20-FEB-15 09:00:00 to 22-FEB-15 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 10 to 15 inches were measured mainly in the region from Yampa to Steamboat Springs.

Heavy Snow in ELKHEAD AND PARK MOUNTAINS, COLORADO
From 20-FEB-15 07:00:00 to 22-FEB-15 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Snowfall amounts of 10 to 20 inches were measured across most of the area.  Locally higher amounts included 23 inches at the Steamboat Springs Ski Area.

Winter Weather in FLATTOP MOUNTAINS, COLORADO
From 20-FEB-15 07:00:00 to 23-FEB-15 01:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Snowfall amounts of 7 to 11 inches were measured across the area. Locally higher amounts included 14 inches at the Crosho SNOTEL site.

Heavy Snow in UPPER GUNNISON RIVER VALLEY, COLORADO
From 22-FEB-15 07:00:00 to 23-FEB-15 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall amounts of 7 to 10 inches were measured across the area.  Locally heavier amounts included 12 inches at Black Canyon of the Gunnison National Park.

Heavy Snow in PARADOX VALLEY / LOWER DOLORES RIVER BASIN, COLORADO
From 22-FEB-15 06:00:00 to 23-FEB-15 11:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall amounts of 5 to 13 inches were measured across the area.  Some schools were closed on the 23rd.