A vigorous Pacific low pressure system produced moderate to heavy snow and strong northwest winds with gusts of 35 to 55 mph across much of southeast Wyoming. The strong winds produced blizzard conditions along Interstate 80 between Laramie and Rawlins.  Snowfall totals varied from 6 to 12 inches across the high plains, to as much as 42 inches over the higher peaks of the Snowy and Sierra Madre mountains.

Blizzard in NORTH SNOWY RANGE FOOTHILLS, WYOMING
From 23-DEC-17 00:00:00 to 23-DEC-17 18:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Numerous reports of near zero visibility in falling and blowing snow along Interstate 80 between mile posts 235 and 290. Sustained winds of 30 to 40 mph with gusts to 55 mph were observed.  Interstate 80 was closed both directions.

Winter Storm in SIERRA MADRE RANGE, WYOMING
From 22-DEC-17 20:00:00 to 23-DEC-17 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Divide Peak SNOTEL site (elevation 8880 ft) estimated 13.5 inches of snow.

Winter Storm in SIERRA MADRE RANGE, WYOMING
From 22-DEC-17 20:00:00 to 23-DEC-17 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Sandstone Ranger Station SNOTEL site (elevation 8150 ft) estimated 12 inches of snow.

Winter Storm in SIERRA MADRE RANGE, WYOMING
From 22-DEC-17 20:00:00 to 23-DEC-17 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Old Battle SNOTEL site (elevation 10000 ft) estimated 28 inches of snow.

Winter Storm in SIERRA MADRE RANGE, WYOMING
From 22-DEC-17 20:00:00 to 23-DEC-17 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Webber Springs SNOTEL site (elevation 9250 ft) estimated 20 inches of snow.

Winter Storm in SIERRA MADRE RANGE, WYOMING
From 22-DEC-17 20:00:00 to 23-DEC-17 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Little Snake River SNOTEL site (elevation 8915 ft) estimated 36 inches of snow.

Winter Storm in SIERRA MADRE RANGE, WYOMING
From 22-DEC-17 20:00:00 to 23-DEC-17 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Whiskey Park SNOTEL site (elevation 8950 ft) estimated 19.5 inches of snow.

Winter Storm in SIERRA MADRE RANGE, WYOMING
From 22-DEC-17 20:00:00 to 23-DEC-17 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Blackhall Mountain SNOTEL site (elevation 9820 ft) estimated 30 inches of snow.

Winter Storm in SNOWY RANGE, WYOMING
From 22-DEC-17 20:00:00 to 23-DEC-17 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The North French Creek SNOTEL site (elevation 10130 ft) estimated 22 inches of snow.

Winter Storm in SNOWY RANGE, WYOMING
From 22-DEC-17 20:00:00 to 23-DEC-17 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Sand Lake SNOTEL site (elevation 10050 ft) estimated 26 inches of snow.

Winter Storm in SNOWY RANGE, WYOMING
From 22-DEC-17 20:00:00 to 23-DEC-17 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Brooklyn Lake SNOTEL site (elevation 10240 ft) estimated 42.5 inches of snow.

Winter Storm in SNOWY RANGE, WYOMING
From 22-DEC-17 20:00:00 to 23-DEC-17 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Cinnabar Park SNOTEL site (elevation 9574 ft) estimated 28 inches of snow.

Winter Storm in SNOWY RANGE, WYOMING
From 22-DEC-17 20:00:00 to 23-DEC-17 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Medicine Bow SNOTEL site (elevation 10500 ft) estimated 42 inches of snow.

Winter Storm in CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY, WYOMING
From 23-DEC-17 08:00:00 to 23-DEC-17 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Eight inches of snow was observed 11 miles southwest of Wheatland.

Winter Storm in SOUTH LARAMIE RANGE, WYOMING
From 23-DEC-17 08:00:00 to 23-DEC-17 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Six inches of snow was observed at the Interstate 80 Summit.  Interstate 80 was closed due to numerous traffic accidents.

Winter Storm in EAST PLATTE COUNTY, WYOMING
From 23-DEC-17 08:00:00 to 23-DEC-17 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A foot of snow was observed at Wheatland.

Winter Storm in EAST PLATTE COUNTY, WYOMING
From 23-DEC-17 08:00:00 to 23-DEC-17 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Nine inches of snow was observed two miles east of Wheatland.

Winter Storm in GOSHEN COUNTY, WYOMING
From 23-DEC-17 08:00:00 to 23-DEC-17 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Five to eight inches of snow was observed from Hawk Springs to Torrington.

Winter Weather in CENTRAL LARAMIE COUNTY, WYOMING
From 23-DEC-17 08:00:00 to 23-DEC-17 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Six inches of snow was observed 10 miles east-northeast of Cheyenne.

Winter Storm in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 23-DEC-17 08:00:00 to 23-DEC-17 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Six inches of snow was observed near Buford.  Interstate 80 was closed both directions due to numerous traffic accidents.