The combination of ample Pacific moisture, good upper level divergence and an approaching Arctic Front brought heavy snow to many portions of western and central Wyoming. The heaviest snow fell in the western Mountains where many locations eclipsed 2 feet of new snow, with the highest amount of 32 inches at Lewis Lake Divide in Yellowstone Park. Meanwhile, East of the Divide, the heaviest snow fell around the Cody area, where over a foot of snow was common. The snow was accompanied by gusty winds that brought blowing and drifting snow that closed many roads for a time, including Interstate 25 in the vicinity of Casper.

Winter Storm in NORTH BIG HORN BASIN, WYOMING
From 15-DEC-16 12:00:00 to 16-DEC-16 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy snow fell in and around Lovell where 8 to 11 inches of snow occurred. Lesser amounts fell further south.

Winter Storm in NATRONA COUNTY LOWER ELEVATIONS, WYOMING
From 16-DEC-16 01:00:00 to 17-DEC-16 00:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Across the city of Casper, 6 to 10 inches of new snow occurred. The snow was accompanied by gusty winds that brought blowing and drifting snow, closing Interstate 25 and US 20 26 for several hours.

Winter Storm in CODY FOOTHILLS, WYOMING
From 15-DEC-16 00:00:00 to 16-DEC-16 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy snow fell in the Cody Foothills. The highest amounts were around Wapati where 27 inches of new snow fell. Over a foot of new snow was common across the city of Cody.

Winter Storm in NORTHEAST JOHNSON COUNTY, WYOMING
From 15-DEC-16 17:30:00 to 16-DEC-16 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotters measured anywhere from 6 to 10 inches across the city of Buffalo.

Winter Storm in CASPER MOUNTAIN, WYOMING
From 15-DEC-16 23:00:00 to 17-DEC-16 02:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Casper Mountain SNOTEL recorded 12 new inches of snow.

Winter Storm in YELLOWSTONE NATIONAL PARK, WYOMING
From 14-DEC-16 18:00:00 to 16-DEC-16 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Very heavy snow fell in Yellowstone Park. Some of the higher amounts included 32 inches at the Lewis Lake Divide SNOTEL and 30 inches at the Snake River Ranger Station.

Winter Storm in ABSAROKA MOUNTAINS, WYOMING
From 14-DEC-16 21:00:00 to 16-DEC-16 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Heavy snow fell in the Absarokas. Some of the higher amounts included 27 inches at the Beartooth Lake SNOTEL and 24 inches at the Blackwater Lake SNOTEL.

Winter Storm in TETON & GROS VENTRE MOUNTAINS, WYOMING
From 14-DEC-16 21:00:00 to 16-DEC-16 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Heavy snow fell through the Tetons and Gros Ventres. The highest amount was 31 inches, which fell at Jackson Hole Ski Resort and the Grassy Lake SNOTEL.

Winter Storm in SALT RIVER & WYOMING RANGES, WYOMING
From 14-DEC-16 18:00:00 to 16-DEC-16 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Heavy snow fell throughout the Salt and Wyoming Range. Some of the largest accumulations were 25 inches at the Blind Bull Summit and Indian Creek SNOTEL sites.

Winter Storm in JACKSON HOLE, WYOMING
From 14-DEC-16 18:00:00 to 16-DEC-16 18:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy snow though portions of the Jackson Valley. Amounts ranged from 4 inches in Jackson to 19 inches near Wilson.

Winter Storm in WIND RIVER MOUNTAINS WEST, WYOMING
From 14-DEC-16 21:00:00 to 16-DEC-16 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Gunsite Pass SNOTEL recorded 15 inches of new snow.

Winter Storm in UPPER GREEN RIVER BASIN FOOTHILLS, WYOMING
From 14-DEC-16 15:00:00 to 16-DEC-16 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy snow fell in northern portions of this zone with 17 inches of snow in Bondurant and 9 inches at Daniel. Further south, the snow mixed with rain and held accumulaitons down with only 3 inches at Pinedale.

Winter Storm in WIND RIVER MOUNTAINS EAST, WYOMING
From 15-DEC-16 13:00:00 to 17-DEC-16 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Heavy snow fell through the east slopes of the Wind River Range. Some of the highest amounts included 28 inches at the South Pass SNOTEL and 18 inches at Atlantic City.