A potent winter storm rang in the New Year across Wyoming and brought heavy snow across much of the area, leading to numerous road closures, including Interstates 25 and 80,  and severely hampering holiday travel. The heaviest snow fell East of the Divide. In the Wind River Mountains, as much as 27 inches of new snow fell. The Lander area saw the highest snowfall totals in the populated areas, with anywhere from 15 to 22 inches around town. Over a foot of snow also fell in the lower elevations of Lincoln, Natrona, Sublette and Sweetwater Counties. The snow was also accompanied by wind gusts close to 50 mph in the favored locations, bring near zero visibility with blowing and drifting snow.

Winter Storm in TETON & GROS VENTRE MOUNTAINS, WYOMING
From 01-JAN-23 00:00:00 to 01-JAN-23 03:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Up to 14 inches of new snow fell at the Jackson Hole Ski Resort.

Winter Storm in JACKSON HOLE, WYOMING
From 01-JAN-23 00:00:00 to 01-JAN-23 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall amounts ranged from 4 to 8 inches around the Jackson Valley.

Winter Storm in YELLOWSTONE NATIONAL PARK, WYOMING
From 01-JAN-23 00:00:00 to 01-JAN-23 04:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

A SNOTEL site reported 13 inches of new near the South Entrance to Yellowstone Park.

Winter Storm in SALT RIVER & WYOMING RANGES, WYOMING
From 01-JAN-23 00:00:00 to 02-JAN-23 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Most locations reported over a foot of new snow, with a high of 22 inches of new snow at Commissary Ridge.

Winter Storm in WIND RIVER MOUNTAINS WEST, WYOMING
From 01-JAN-23 00:00:00 to 02-JAN-23 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A combination of strong wind and snowfall brought near zero visibility across South Pass that resulted in the closure of Highway 28 for many hours.

Winter Storm in WIND RIVER MOUNTAINS EAST, WYOMING
From 01-JAN-23 00:00:00 to 02-JAN-23 18:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Very heavy snow fell in the east slopes of the Wind River Range. Many areas had over 15 inches of new snow with a maximum of 27 inches at the Townsend Creek SNOTEL site.

Winter Storm in GREEN MOUNTAINS & RATTLESNAKE RANGE, WYOMING
From 01-JAN-23 05:00:00 to 02-JAN-23 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Heavy snow and gusty wind brought the closure of many roads, including US 287.

Winter Storm in NATRONA COUNTY LOWER ELEVATIONS, WYOMING
From 01-JAN-23 05:00:00 to 02-JAN-23 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy snow fell around the city of Casper with a maximum of 15.9 inches 1 mile East of downtown Casper. Around 8 inches fell at Powder River and 5 inches at Midwest. The heavy snow brought the closure of Interstate 25 and US 20 26 for many hours.

Winter Storm in CASPER MOUNTAIN, WYOMING
From 01-JAN-23 05:00:00 to 02-JAN-23 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Casper Mountain SNOTEL site received 13 inches of new snow.

Winter Storm in EAST SWEETWATER COUNTY, WYOMING
From 01-JAN-23 08:00:00 to 02-JAN-23 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy snow fell in portions of Eastern Sweetwater County, with a maximum snowfall of 16 inches at Wamsutter. The snow fell with wind gusting close to 50 mph, bringing blowing and drifting snow and resulting in a long closure of Interstate 80.

Winter Storm in WIND RIVER BASIN, WYOMING
From 01-JAN-23 04:00:00 to 02-JAN-23 19:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy snow fell through much of the Wind River Basin. Snowfall amounts ranged from 7.9 inches at Shoshoni to 14.5 inches to the west of Riverton.

Winter Storm in UPPER WIND RIVER BASIN, WYOMING
From 01-JAN-23 04:00:00 to 02-JAN-23 10:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Around 6 inches of snow was reported around Dubois.

Winter Storm in LANDER FOOTHILLS, WYOMING
From 01-JAN-23 05:00:00 to 02-JAN-23 18:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall amounts around Lander ranged from around 15 inches in town to 25.8 inches closer to the Wind River Mountains.

Winter Storm in SOUTHEAST JOHNSON COUNTY, WYOMING
From 01-JAN-23 18:00:00 to 02-JAN-23 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Periods of snow resulted in the closure of Interstate 25 for several hours.

Winter Storm in NORTHEAST JOHNSON COUNTY, WYOMING
From 01-JAN-23 18:00:00 to 02-JAN-23 20:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter measured 6,5 inches of snow to the southeast of Buffalo. The snow and gusty wind led to the closure of Interstates 25 and 90 for a time.

Winter Storm in UPPER GREEN RIVER BASIN FOOTHILLS, WYOMING
From 01-JAN-23 12:00:00 to 02-JAN-23 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall amounts ranged from around 6 inches near Pinedale to almost 10 inches near Bondurant.

Winter Storm in UPPER GREEN RIVER BASIN, WYOMING
From 01-JAN-23 15:00:00 to 02-JAN-23 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 9 inches of snow near Farson.

Winter Storm in SOUTH LINCOLN COUNTY, WYOMING
From 01-JAN-23 01:00:00 to 02-JAN-23 18:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A combination of heavy snow and wind gusting as high as 50 mph lead to the closure of many roads around southern Lincoln County.

Winter Storm in STAR VALLEY, WYOMING
From 01-JAN-23 00:00:00 to 02-JAN-23 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall amounts in the Star Valley ranged from 6 to 14 inches, including 11.5 inches at Afton.

Winter Weather in JACKSON HOLE, WYOMING
From 01-JAN-23 00:00:00 to 01-JAN-23 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall amounts between from 4 to 5 inches around the city of Jackson.