An unusually strong, cold, and moist upper trough for April resulted in heavy snowfall in many areas and blizzard conditions in some areas of western Colorado.

Winter Weather in LOWER YAMPA RIVER BASIN, COLORADO
From 09-APR-13 05:00:00 to 09-APR-13 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Wind gusts of 30 to 50 mph produced widespread blowing and drifting snow, along with localized blizzard conditions. Reported visibilities only dropped to a half mile.  And new snowfall was estimated at only a trace.

Winter Storm in UPPER GUNNISON RIVER VALLEY, COLORADO
From 09-APR-13 06:00:00 to 10-APR-13 02:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 5 to 9 inches were measured across the area. Wind gusts of 20 to 30 mph produced some areas of blowing and drifting snow.

Winter Weather in DEBEQUE TO SILT CORRIDOR, COLORADO
From 09-APR-13 09:00:00 to 09-APR-13 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall and wind gusts of 25 to 40 mph produced widespread blowing and drifting snow. Although the winds made it difficult to measure new snowfall depths, estimated amounts were generally less than 3 inches.

Winter Weather in CENTRAL GUNNISON AND UNCOMPAHGRE RIVER BASIN, COLORADO
From 09-APR-13 09:00:00 to 10-APR-13 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 2 to 6 inches were measured across the area. Wind gusts of 20 to 30 mph produced some areas of blowing and drifting snow.

Winter Weather in CENTRAL COLORADO RIVER BASIN, COLORADO
From 09-APR-13 08:00:00 to 09-APR-13 22:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 2 to 6 inches were measured across the area. Wind gusts of 20 to 30 mph produced some areas of blowing and drifting snow.

Winter Weather in GORE AND ELK MOUNTAINS/CENTRAL MOUNTAIN VALLEYS, COLORADO
From 08-APR-13 17:00:00 to 10-APR-13 05:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall amounts of 5 to 12 inches were measured across the area. Locally higher amounts included 14 inches at Snowmass Ski Area. Wind gusts of 20 to 35 mph produced areas of blowing and drifting snow.

Winter Storm in WEST ELK AND SAWATCH MOUNTAINS, COLORADO
From 08-APR-13 17:00:00 to 10-APR-13 05:00:00 (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. Wind gusts of 20 to 35 mph produced areas of blowing and drifting snow.

Blizzard in ROAN AND TAVAPUTS PLATEAUS, COLORADO
From 08-APR-13 20:00:00 to 09-APR-13 18:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snowfall and wind gusts of 35 to 60 mph produced widespread blizzard conditions mainly above the 8000 foot level.  Strong winds made it difficult to measure snowfall accumulations, through estimates were around 12 inches above the 8000 foot level.

Winter Storm in SOUTHWESTERN SAN JUAN MOUNTAINS, COLORADO
From 08-APR-13 10:00:00 to 10-APR-13 05:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snowfall amounts of 10 to 20 inches were measured across the area. Wind gusts of 30 to 50 mph produced widespread blowing and drifting snow, with localized blizzard conditions. Even stronger winds on ridgetops included 89 mph at Eagle Mountain and 75 mph at Kendall Mountain.

Winter Weather in SAN JUAN RIVER BASIN, COLORADO
From 08-APR-13 22:00:00 to 09-APR-13 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 3 to 6 inches were measured across the area, with locally higher amounts up to 9 inches. Wind gusts of 25 to 35 mph produced areas of blowing and drifting snow.

Blizzard in ELKHEAD AND PARK MOUNTAINS, COLORADO
From 09-APR-13 00:00:00 to 09-APR-13 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall and wind gusts of 30 to 55 mph produced blizzard conditions across the area. Snowfall amounts were difficult to measure due to the winds, although they were estimated to be 2 to 6 inches.

Winter Weather in UPPER YAMPA RIVER BASIN, COLORADO
From 09-APR-13 01:00:00 to 10-APR-13 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Wind gusts of 35 to 45 mph produced widespread blowing and drifting snow. The winds made it difficult to measure the snowfall, though estimates of 2 to 3 inches were common.

Winter Weather in ANIMAS RIVER BASIN, COLORADO
From 09-APR-13 03:00:00 to 09-APR-13 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 2 to 5 inches were measured across the area. Wind gusts of 25 to 35 mph produced areas of blowing and drifting snow.

Winter Storm in GRAND AND BATTLEMENT MESAS, COLORADO
From 08-APR-13 13:00:00 to 10-APR-13 04:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall amounts of 10 to 14 inches were measured across the area. Wind gusts of 30 to 50 mph produced widespread blowing and drifting snow, with localized blizzard conditions.

Winter Storm in NORTHWESTERN SAN JUAN MOUNTAINS, COLORADO
From 08-APR-13 13:00:00 to 10-APR-13 05:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snowfall amounts of 10 to 16 inches were measured across the area. Wind gusts of 25 to 40 mph produced areas of blowing and drifting snow. Even stronger winds on ridgetops included 70 mph at Mount Abrahms.

Winter Weather in UNCOMPAHGRE PLATEAU AND DALLAS DIVIDE, COLORADO
From 08-APR-13 15:00:00 to 09-APR-13 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Snowfall amounts of 3 to 9 inches were measured across the area above the 7000 foot level. Wind gusts of 20 to 35 mph produced areas of blowing and drifting snow.

Winter Weather in FLATTOP MOUNTAINS, COLORADO
From 08-APR-13 16:00:00 to 10-APR-13 05:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Snowfall amounts of 8 to 11 inches were measured across the area. Wind gusts of 25 to 40 mph produced areas of blowing and drifting snow.

Winter Weather in CENTRAL YAMPA RIVER BASIN, COLORADO
From 09-APR-13 05:00:00 to 10-APR-13 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Snowfall and wind gusts of 25 to 45 mph produced widespread blowing and drifting snow with localized blizzard conditions. Reported visibilities only dropped to a half mile. Snowfall amounts were difficult to measure due to the winds, although they were estimated to be 2 to 3 inches.