A moist Pacific trough and associated cold front progressed eastward across the Great Basin and into the Four Corners region and produced significant snowfall in the mountains, as well as some southern valleys.

Winter Weather in ELKHEAD AND PARK MOUNTAINS, COLORADO
From 29-NOV-18 16:00:00 to 30-NOV-18 23:59:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Generally 4 to 8 inches of snow was measured across the area.  locally higher amounts included a foot at the Rabbit Ears Pass SNOTEL site.

Winter Weather in ROAN AND TAVAPUTS PLATEAUS, COLORADO
From 29-NOV-18 23:30:00 to 30-NOV-18 23:59:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

CDOT webcams showed heavy snowfall with slick and snowpacked roads, as well as reduced visibility on Douglas Pass. The deteriorating conditions led to a crash on Douglas Pass, which resulted in closure of the pass in both directions. An estimated 8 inches of snow accumulated on Douglas pass.

Winter Weather in NORTHWESTERN SAN JUAN MOUNTAINS, COLORADO
From 29-NOV-18 19:00:00 to 30-NOV-18 23:59:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Generally 5 to 7 inches of snow was measured across the area.

Winter Weather in GRAND AND BATTLEMENT MESAS, COLORADO
From 30-NOV-18 01:00:00 to 30-NOV-18 23:59:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Generally 5 to 12 inches of snow was measured across the area.

Winter Weather in UNCOMPAHGRE PLATEAU AND DALLAS DIVIDE, COLORADO
From 30-NOV-18 02:00:00 to 30-NOV-18 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Generally 4 to 8 inches of snow was measured across the area, including 5 inches near Ridgway and Colona.

Winter Weather in FOUR CORNERS / UPPER DOLORES RIVER BASIN, COLORADO
From 30-NOV-18 03:00:00 to 30-NOV-18 11:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Generally 2.5 to 4 inches of snow was measured across the area.

Winter Weather in GORE AND ELK MOUNTAINS/CENTRAL MOUNTAIN VALLEYS, COLORADO
From 30-NOV-18 05:00:00 to 30-NOV-18 23:59:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Generally 4 to 6 inches of snow was measured across the area.

Winter Weather in ANIMAS RIVER BASIN, COLORADO
From 30-NOV-18 05:00:00 to 30-NOV-18 10:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Generally 3 to 6 inches of snow was measured across the area.  Locally higher amounts included 7 inches about 10 miles southwest of Hesperus.

Winter Weather in SAN JUAN RIVER BASIN, COLORADO
From 30-NOV-18 05:00:00 to 30-NOV-18 12:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts of 2.5 to 3.5 inches were measured across the area.

Winter Weather in WEST ELK AND SAWATCH MOUNTAINS, COLORADO
From 30-NOV-18 08:00:00 to 30-NOV-18 23:59:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Generally 5 to 7 inches of snow was measured across the area.

Winter Weather in FLATTOP MOUNTAINS, COLORADO
From 30-NOV-18 09:00:00 to 30-NOV-18 23:59:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Generally 6 to 9 inches of snow was measured across the area.  Locally higher amounts included 12 inches at the Burro Mountain SNOTEL site.