Ample moisture and energy out ahead of and with the progression of a Pacific trough moving across the Great Basin brought widespread precipitation to western Colorado. Additionally, a secondary shortwave trough moved through in the southwesterly flow which enhanced orographic flow over the mountains.

Winter Weather in GORE AND ELK MOUNTAINS/CENTRAL MOUNTAIN VALLEYS, COLORADO
From 17-JAN-19 08:00:00 to 19-JAN-19 00:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Generally 6 to 12 inches of snow fell across the area with up to 14.4 inches estimated at the Ivanhoe SNOTEL site. Due to the hazardous road conditions, schools in Aspen School District 1 were cancelled on Friday, January 18th.

Winter Weather in UNCOMPAHGRE PLATEAU AND DALLAS DIVIDE, COLORADO
From 17-JAN-19 15:00:00 to 18-JAN-19 10:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

An average of 2 to 11 inches of snow fell across the area with the heaviest amounts estimated at the Columbine Pass SNOTEL site.

Winter Weather in SAN JUAN RIVER BASIN, COLORADO
From 17-JAN-19 18:00:00 to 18-JAN-19 05:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Numerous observers measured at or around 6 inches of snow near Pagosa Springs with one station reporting 8 inches.

Heavy Snow in CENTRAL YAMPA RIVER BASIN, COLORADO
From 17-JAN-19 18:00:00 to 18-JAN-19 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Generally 6 to 9 inches of snow fell across the area with locally higher amounts nearing a foot around Craig and Hayden.

Heavy Snow in ELKHEAD AND PARK MOUNTAINS, COLORADO
From 17-JAN-19 09:00:00 to 18-JAN-19 18:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Generally 14 to 28 inches of snow fell across the area with 30 inches estimated at the Rabbit Ears SNOTEL site.

Heavy Snow in GRAND AND BATTLEMENT MESAS, COLORADO
From 17-JAN-19 08:00:00 to 18-JAN-19 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Generally 8 to 19 inches of snow fell across the area.

Winter Weather in WEST ELK AND SAWATCH MOUNTAINS, COLORADO
From 17-JAN-19 12:00:00 to 18-JAN-19 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Generally 8 to 12 inches of snow fell across the area with up to 17 inches estimated at the Schofield Pass SNOTEL site.

Heavy Snow in FLATTOP MOUNTAINS, COLORADO
From 17-JAN-19 12:00:00 to 18-JAN-19 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Generally 14 to 20 inches of snow fell across the area with up to 24 inches estimated at the Ripple Creek SNOTEL site.

Winter Weather in UPPER GUNNISON RIVER VALLEY, COLORADO
From 17-JAN-19 16:00:00 to 18-JAN-19 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Generally 3 to 5 inches of snow fell across the area.

Winter Weather in LOWER YAMPA RIVER BASIN, COLORADO
From 17-JAN-19 18:00:00 to 18-JAN-19 10:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Generally 4 to 5 inches of snow fell across the area with up to 8 inches reported 6 miles northeast of Rangely.

Winter Weather in ROAN AND TAVAPUTS PLATEAUS, COLORADO
From 17-JAN-19 16:00:00 to 18-JAN-19 04:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Roughly 7 inches of snow fell across the area.

Winter Weather in NORTHWESTERN SAN JUAN MOUNTAINS, COLORADO
From 17-JAN-19 14:00:00 to 18-JAN-19 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Generally 6 to 12 inches of snow fell across the area with a report of 13 inches 7 miles northeast of Sawpit and a report of close to 16 inches south-southwest of Telluride.

Winter Weather in ANIMAS RIVER BASIN, COLORADO
From 17-JAN-19 16:00:00 to 18-JAN-19 05:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Generally 3 to 7 inches of snow fell across the area with locally higher amounts nearing a foot in the surrounding foothills. Due to the hazardous road conditions, schools in the Ignacio, Bayfield, and Durango School Districts were cancelled on Friday, January 18th.

Heavy Snow in SOUTHWESTERN SAN JUAN MOUNTAINS, COLORADO
From 17-JAN-19 16:00:00 to 18-JAN-19 18:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Anywhere from 9 to 20 inches of snow fell across the area with most amounts in the 12 to 16 inch range. The Department of Transportation closed 44 miles of Colorado Highway 550, the main highway to get from Montrose to Durango and areas south, due to snowfall and natural avalanches crossing the road. The closure included all three mountain passes, Coal Bank, Molas and Red Mountain, and it started during the early morning hours on Friday, January 18th and the road did not reopen until Saturday evening, January 19th.

Heavy Snow in UPPER YAMPA RIVER BASIN, COLORADO
From 17-JAN-19 17:00:00 to 18-JAN-19 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Generally 10 to 13 inches of snow fell in and around the Steamboat Springs area with up to 18 inches reported at a CoCoRaHS station 1 mile north-northwest of Clark.