An intense low pressure system moved quickly east across the central Rockies and plains.  Heavy snow developed over the mountains and high valleys of southeast Wyoming, with lesser amounts across the plains.  Strong and gusty north to northwest winds produced considerable blowing and drifting snow, which severely impacted travel along Interstates 25 and 80 throughout southeast Wyoming.  WYDOT closed Interstate 80 from west of Rawlins to Cheyenne for an extended period of time due to near-zero visibility in the Arlington area and several surrounding towns at capacity.  Interstate 25 from Chugwater to Wheatland and US Highway 287 from Laramie to the Colorado border were closed due to winter weather conditions.

Winter Storm in NORTH SNOWY RANGE FOOTHILLS, WYOMING
From 10-NOV-15 17:00:00 to 11-NOV-15 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Four to six inches of snow was reported along Interstate 80 from west of Arlington to Wagonhound.  Strong northwest winds with gusts to 60 mph produced near-zero visibility in blowing and drifting snow.  Interstate 80 was closed.

Winter Storm in NORTH SNOWY RANGE FOOTHILLS, WYOMING
From 10-NOV-15 17:00:00 to 11-NOV-15 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Ten inches of snow was measured near Elk Mountain.

Winter Storm in NORTH SNOWY RANGE FOOTHILLS, WYOMING
From 10-NOV-15 17:00:00 to 11-NOV-15 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A foot of snow was measured two miles south of Elk Mountain.

Winter Storm in CENTRAL LARAMIE COUNTY, WYOMING
From 10-NOV-15 19:00:00 to 11-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Three to six inches of snow was reported.  Strong northwest winds of 30 to 50 mph produced visibility as low as one quarter mile in blowing and drifting snow.  Interstate 80 was closed from Cheyenne westward.

Winter Storm in CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY, WYOMING
From 11-NOV-15 00:00:00 to 11-NOV-15 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Eight inches of snow was measured 20 miles southwest of Wheatland.

Winter Storm in SOUTH LARAMIE RANGE, WYOMING
From 10-NOV-15 17:00:00 to 11-NOV-15 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Seven inches of snow was measured 20 miles west-southwest of FE Warren Air Force Base.

Winter Storm in SOUTH LARAMIE RANGE, WYOMING
From 10-NOV-15 17:00:00 to 11-NOV-15 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

An observer four miles southeast of Buford measured 7.5 inches of snow.

Winter Storm in EAST LARAMIE COUNTY, WYOMING
From 10-NOV-15 19:00:00 to 11-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Three to six inches of snow was reported. Strong northwest winds of 30 to 50 mph produced visibility as low as one quarter mile in blowing and drifting snow.

Winter Storm in SIERRA MADRE RANGE, WYOMING
From 10-NOV-15 17:00:00 to 11-NOV-15 09:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Divide Peak SNOTEL site (elevation 8880 ft) estimated 19.5 inches of snow.

Winter Storm in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 10-NOV-15 17:00:00 to 11-NOV-15 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Four to seven inches of snow was reported from east of the Interstate 80 summit to mile marker 353.  Strong northwest winds of 40 to 60 mph produced near-zero visibility in blowing and drifting snow.  Interstate 80 was closed.

Winter Storm in LARAMIE VALLEY, WYOMING
From 10-NOV-15 17:00:00 to 11-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Nine inches of snow was measured 18 miles south of Rock River.

Winter Storm in SIERRA MADRE RANGE, WYOMING
From 10-NOV-15 17:00:00 to 11-NOV-15 09:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Old Battle SNOTEL site (elevation 10000 ft) estimated 12 inches of snow.

Winter Storm in SNOWY RANGE, WYOMING
From 10-NOV-15 17:00:00 to 11-NOV-15 09:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Cinnabar Park SNOTEL site (elevation 9574 ft) estimated 12 inches of snow.

Winter Storm in LARAMIE VALLEY, WYOMING
From 10-NOV-15 17:00:00 to 11-NOV-15 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Seven inches of snow was measured one mile north-northeast of Centennial.

Winter Storm in SIERRA MADRE RANGE, WYOMING
From 10-NOV-15 17:00:00 to 11-NOV-15 09:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Blackhall Mountain SNOTEL site (elevation 9820 ft) estimated 16.5 inches of snow.

Winter Storm in SIERRA MADRE RANGE, WYOMING
From 10-NOV-15 17:00:00 to 11-NOV-15 09:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Webber Springs SNOTEL site (elevation 9250 ft) estimated 18 inches of snow.