A Pacific low pressure system moved eastward across the area and produced significant snowfall in the mountains and some lower elevation areas of western Colorado.

Winter Weather in FLATTOP MOUNTAINS, COLORADO
From 31-JAN-11 01:00:00 to 31-JAN-11 23:59:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Snowfall accumulations of 4 to 12 inches were measured across the area for the duration of this event which continued into February.  Wind gusts of 20 to 30 mph produced localized blowing and drifting snow.

Winter Weather in CENTRAL YAMPA RIVER BASIN, COLORADO
From 31-JAN-11 06:00:00 to 31-JAN-11 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall accumulations around 3 inches were measured across about half of the area.  Wind gusts of 20 to 30 mph produced localized blowing and drifting snow.

Winter Weather in GRAND AND BATTLEMENT MESAS, COLORADO
From 31-JAN-11 00:00:00 to 31-JAN-11 23:59:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall accumulations of 6 to 12 inches were measured across the area for the duration of this event which continued into February.  Locally higher amounts included 16 inches at Powderhorn Ski Area.  Wind gusts up to 30 mph produced localized blowing and drifting snow.

Winter Weather in GORE AND ELK MOUNTAINS/CENTRAL MOUNTAIN VALLEYS, COLORADO
From 31-JAN-11 10:00:00 to 31-JAN-11 23:59:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall accumulations of 4 to 12 inches were measured across the area for the duration of this event which continued into February.  Wind gusts of 20 to 30 mph produced localized blowing and drifting snow.

Winter Weather in WEST ELK AND SAWATCH MOUNTAINS, COLORADO
From 31-JAN-11 08:00:00 to 31-JAN-11 23:59:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snowfall accumulations of 4 to 8 inches were measured across the area for the duration of this event which continued into February.  Wind gusts of 15 to 25 mph produced localized blowing and drifting snow.

Winter Weather in UNCOMPAHGRE PLATEAU AND DALLAS DIVIDE, COLORADO
From 31-JAN-11 00:00:00 to 31-JAN-11 22:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall accumulations of 4 to 12 inches were measured across the area.  Locally higher amounts included 14 inches at Columbine Pass.  Wind gusts of 15 to 25 mph produced localized blowing and drifting snow.

Winter Weather in SOUTHWESTERN SAN JUAN MOUNTAINS, COLORADO
From 31-JAN-11 01:00:00 to 31-JAN-11 23:59:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snowfall accumulations of 4 to 12 inches were measured across the area for the duration of this event which continued into February.  Locally higher amounts included 14 inches at Red Mountain Pass.  Wind gusts of 20 to 40 mph produced areas of blowing and drifting snow.

Winter Storm in NORTHWESTERN SAN JUAN MOUNTAINS, COLORADO
From 31-JAN-11 07:00:00 to 31-JAN-11 23:59:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snowfall accumulations of 10 to 14 inches were measured across the area for the duration of this event which continued into February.  Locally higher amounts included 20 inches at Ouray.  Wind gusts of 20 to 40 mph produced areas of blowing and drifting snow.

Winter Weather in ELKHEAD AND PARK MOUNTAINS, COLORADO
From 31-JAN-11 01:00:00 to 31-JAN-11 23:59:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall accumulations of 5 to 10 inches were measured across the area for the duration of this event which continued into February.  Locally higher amounts included 12 inches at Steamboat Springs Ski Area.  Wind gusts of 20 to 35 mph produced areas of blowing and drifting snow.

Winter Weather in SAN JUAN RIVER BASIN, COLORADO
From 31-JAN-11 05:00:00 to 31-JAN-11 23:59:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall accumulations of 2 to 6 inches were measured across the area for the duration of this event which continued into February.