Cold and moist air across western Colorado and eastern Utah combined with an upper level Pacific shortwave trough to produce widespread snowfall. The heaviest snow favored the mountains of southwest Colorado and southeast Utah.

Winter Weather in DEBEQUE TO SILT CORRIDOR, COLORADO
From 29-DEC-09 16:00:00 to 30-DEC-09 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 3 to 6 inches occurred. Some locally higher amounts included 7 inches in the Mesa and Collbran areas.

Winter Weather in CENTRAL COLORADO RIVER BASIN, COLORADO
From 30-DEC-09 02:00:00 to 30-DEC-09 22:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 2 to 6 inches occurred.

Winter Weather in CENTRAL GUNNISON AND UNCOMPAHGRE RIVER BASIN, COLORADO
From 29-DEC-09 20:00:00 to 30-DEC-09 21:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 2 to 5 inches occurred with locally higher amounts, including 7 inches at a location 4 miles northeast of Crawford.

Winter Weather in UPPER GUNNISON RIVER VALLEY, COLORADO
From 29-DEC-09 21:00:00 to 30-DEC-09 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 2 to 4 inches occurred across about half of the area, with locally higher reports in some areas, including 7 inches at a location 11 miles south of Cimmaron.

Winter Weather in UNCOMPAHGRE PLATEAU AND DALLAS DIVIDE, COLORADO
From 29-DEC-09 07:00:00 to 30-DEC-09 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 5 to 12 inches occurred mainly above the 7,000 foot level. Locally higher amounts included 15 inches over Columbine Pass.

Winter Weather in PARADOX VALLEY / LOWER DOLORES RIVER BASIN, COLORADO
From 29-DEC-09 08:00:00 to 30-DEC-09 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 3 to 5 inches occurred across the area with locally higher amounts of up to 6 inches reported in the Norwood area.

Winter Weather in ROAN AND TAVAPUTS PLATEAUS, COLORADO
From 29-DEC-09 12:00:00 to 30-DEC-09 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Snowfall of 4 to 6 inches occurred across the area.

Winter Storm in FOUR CORNERS / UPPER DOLORES RIVER BASIN, COLORADO
From 29-DEC-09 11:00:00 to 30-DEC-09 22:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 5 to 11 inches occurred across the area.

Winter Storm in ELKHEAD AND PARK MOUNTAINS, COLORADO
From 29-DEC-09 14:00:00 to 31-DEC-09 09:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 10 to 17 inches occurred across the area with locally higher amounts reported, including 30 inches at the Tower SNOTEL site. Wind gusts up to 30 mph produced blowing and drifting snow.

Winter Weather in GRAND AND BATTLEMENT MESAS, COLORADO
From 29-DEC-09 17:00:00 to 30-DEC-09 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 6 to 12 inches occurred across the area with locally higher amounts, including 19 inches at Powderhorn Ski Area. Wind gusts up to 30 mph produced blowing and drifting snow.

Winter Weather in WEST ELK AND SAWATCH MOUNTAINS, COLORADO
From 29-DEC-09 12:00:00 to 31-DEC-09 04:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 4 to 12 inches occurred across the area with wind gusts up to 25 mph producing areas of blowing snow.

Winter Weather in FLATTOP MOUNTAINS, COLORADO
From 29-DEC-09 20:00:00 to 31-DEC-09 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Snowfall of 5 to 12 inches occurred. Wind gusts up to 25 mph produced localized blowing snow.

Winter Weather in CENTRAL YAMPA RIVER BASIN, COLORADO
From 29-DEC-09 10:00:00 to 31-DEC-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 2 to 4 inches occurred across the area with some locally higher amounts, including 9 inches in Hayden.

Winter Weather in UPPER YAMPA RIVER BASIN, COLORADO
From 30-DEC-09 07:00:00 to 31-DEC-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 5 to 9 inches occurred across the area.

Winter Weather in SAN JUAN RIVER BASIN, COLORADO
From 29-DEC-09 14:00:00 to 31-DEC-09 01:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 4 to 7 inches occurred across the area.

Winter Weather in GRAND VALLEY, COLORADO
From 29-DEC-09 08:00:00 to 30-DEC-09 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 2 to 4 inches occurred with some locally higher amounts, including 7 inches at a location 6 miles southeast of Mack. The wet snowfall created slippery road conditions as the temperatures began to fall, causing a pickup to slide out of control on I-70 near the Clifton on-ramp.

Winter Weather in ANIMAS RIVER BASIN, COLORADO
From 29-DEC-09 12:00:00 to 30-DEC-09 18:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 2 to 5 inches occurred across the area and created very slick road conditions, resulting in a rollover vehicle accident just north of Highway 160 outside of the town of Durango.

Winter Weather in SOUTHWESTERN SAN JUAN MOUNTAINS, COLORADO
From 29-DEC-09 09:00:00 to 31-DEC-09 04:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snowfall of 5 to 12 inches occurred with locally higher amounts, including 17 inches at the Mancos SNOTEL site. The snowfall created very slick road conditions, and caused a rollover accident just south of Tamarron along Highway 550. The snow also caused a few natural avalanches over Highway 550 that resulted in a few short road closures. Wind gusts up to 30 mph also produced localized blowing snow.

Winter Weather in NORTHWESTERN SAN JUAN MOUNTAINS, COLORADO
From 29-DEC-09 11:00:00 to 31-DEC-09 05:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snowfall of 5 to 12 inches occurred. Locally higher amounts were reported, including 19 inches at Telluride Ski Area and 16 inches on Red Mountain Pass. The snowfall caused a few natural avalanches over Highway 550 that resulted in a few short road closures. Wind gusts up to 30 mph also produced localized blowing snow.

Winter Weather in GORE AND ELK MOUNTAINS/CENTRAL MOUNTAIN VALLEYS, COLORADO
From 29-DEC-09 22:00:00 to 31-DEC-09 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 6 to 12 inches occurred across about half of the area. Locally higher amounts were reported, including 17 inches at Beaver Creek Ski Area and 14 inches at McCoy Park SNOTEL.