An area of low pressure developed over the four corners region and moved toward Wyoming and brought an intense snowstorm to much of western and central Wyoming. In the mountains, the highest snowfall amounts fell in the Tetons where over two feet was commonplace. Casper Mountain also saw two feet of snow. Across the lower elevations, some of the more notable amounts included 10 inches at Wamsutter in Sweetwater County, 11 inches in Jackson in Teton County and 9.5 inches at Hudson in Fremont County. In addition, strong winds with some gusts past 50 mph caused blowing and drifting snow. This resulted in many road closures including Interstates 80 and 25.

Blizzard in NORTHEAST JOHNSON COUNTY, WYOMING
From 29-NOV-19 12:00:00 to 30-NOV-19 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Snowfall amounts were generally moderate in northern Johnson County. However, a combination of heavy snow and winds gusting as high as 60 mph brought blizzard conditions at times. Interstate 25 was shut down for several hours as a result. In addition, a period of freezing drizzle before the snow brought slick roads that led to many accidents.

Winter Storm in SOUTHEAST JOHNSON COUNTY, WYOMING
From 29-NOV-19 12:00:00 to 30-NOV-19 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A combination of snow and wind closed Interstate 25 for several hours. Before the snow began, a period of freezing drizzle caused multiple accidents along Interstate 25 as well.

Winter Storm in WIND RIVER MOUNTAINS WEST, WYOMING
From 29-NOV-19 02:00:00 to 30-NOV-19 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Heavy snow fell in portions of the western Wind River Mountains. The highest amount was 14 inches at Gunsite Pass.

Winter Storm in SALT RIVER & WYOMING RANGES, WYOMING
From 29-NOV-19 05:00:00 to 30-NOV-19 03:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Heavy snow fell in the Salt and Wyoming Ranges. Some of the highest amounts included 20 inches at Commissary Ridge and 14 inches at the Indian Creek SNOTEL site.

Winter Storm in SOUTHWEST BIG HORN BASIN, WYOMING
From 29-NOV-19 16:00:00 to 30-NOV-19 10:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotters measured anywhere from 6 to 8 inches around the area.

Winter Storm in LANDER FOOTHILLS, WYOMING
From 29-NOV-19 14:00:00 to 30-NOV-19 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Anywhere from 6 to 8 inches of snow fell in Lander Foothills, including 7 inches at the Lander Airport.

Winter Storm in TETON & GROS VENTRE MOUNTAINS, WYOMING
From 29-NOV-19 01:00:00 to 30-NOV-19 10:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Heavy snow fell throughout the Tetons. Some of the more notable amounts included 29 inches at the Togwotee Mountain Lodge and 27 inches at Jackson Hole Ski Resort in Teton County.

Winter Storm in JACKSON HOLE, WYOMING
From 29-NOV-19 01:00:00 to 30-NOV-19 10:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall amounts around the Jackson Valley generally ranged from 6 to 12 inches, with 9.4 inches the city of Jackson, Wyoming.

Winter Storm in UPPER WIND RIVER BASIN, WYOMING
From 29-NOV-19 02:00:00 to 30-NOV-19 02:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter measured 8 inches of snow in Dubois, Wyoming.

Winter Storm in UPPER GREEN RIVER BASIN FOOTHILLS, WYOMING
From 29-NOV-19 06:00:00 to 30-NOV-19 02:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter measured 16.2 inches of snow northwest of Pinedale, Wyoming. Amounts dropped further south and east.

Winter Storm in CODY FOOTHILLS, WYOMING
From 29-NOV-19 06:00:00 to 30-NOV-19 09:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Six inches of snow was measured by the public in Cody, Wyoming.

Winter Storm in STAR VALLEY, WYOMING
From 29-NOV-19 10:00:00 to 30-NOV-19 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy snow fell in portions of the Star Valley. At Afton, Wyoming, 11.6 inches of snow fell.

Winter Storm in NATRONA COUNTY LOWER ELEVATIONS, WYOMING
From 29-NOV-19 13:00:00 to 30-NOV-19 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy snow fell in portions of Natrona County. Amounts ranged from 6 inches in Powder River to 8 inches in Casper, Wyoming. In addition, a period of freezing drizzle before the snow brought icy roads that caused many accidents, especially in the vicinity of Midwest.

Winter Storm in CASPER MOUNTAIN, WYOMING
From 29-NOV-19 13:00:00 to 30-NOV-19 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy snow fell on Casper Mountain in Natrona County, Wyoming. A trained spotter measured 24 inches with 17 inches at the Casper Mountain SNOTEL site.

Winter Storm in WIND RIVER BASIN, WYOMING
From 29-NOV-19 16:00:00 to 30-NOV-19 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Snowfall amounts ranged from 6 inches at the Riverton airport to almost 10 inches at Hudson, Wyoming.

Winter Storm in SOUTHEAST BIG HORN BASIN, WYOMING
From 29-NOV-19 18:00:00 to 30-NOV-19 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotters measured anywhere from 7 to 10 inches of snow in the vicinity of Ten Sleep, Wyoming. Amounts were lower further west toward Worland, Wyoming.

Winter Storm in EAST SWEETWATER COUNTY, WYOMING
From 29-NOV-19 18:00:00 to 30-NOV-19 10:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter measured 10 inches of snow at Wamsutter, Wyoming. In addition, the combination of the snow and gusty wind sharply reduced visibility and led to the closure of Interstate 80 for several hours.