A combination of a strong Pacific trough and cold front, an ample supply of moisture combined to bring very heavy snow to much of western Wyoming. The highest amounts fell in the Tetons where almost 3 feet of new snow occurred at the Jackson Hole Ski resort. Heavy snow also fell in the Salt and Wyoming Range where 32 inches of snow occurred at the Indian Creek SNOTEL. Other heavy snowfall amounts included 25 inches at Deer Creek in the Wind River Range, 18 inches at Two Oceans Plateau in Yellowstone, 16 inches near Wilson, and 8 inches in Cody Alpine. The heavy snow combined with gusty winds to produce very low visibility and avalanches that shut down many roads including Teton Pass, Hoback Junction and South Pass. In Jackson, the heavy snow load caused the collapse of the roof onto the Sears Department Store. In addition, strong winds occurred on the evening of the 7th. These strong winds combined with heavy wet snow to down 17 power poles along Highway 390. This led to a power outage that lasted through the 11th. In addition, Jackson Hole Ski Resort was shut down for several days due to the power loss. Meanwhile, strong wind occurred east of the Divide and across southern Wyoming. The maximum wind gusts included 96 mph at Camp Creek in the Green and Rattlesnake Range, 72 mph near Lander and 65 mph along Outer Drive south of Casper.

Winter Storm in YELLOWSTONE NATIONAL PARK, WYOMING
From 06-FEB-17 01:00:00 to 07-FEB-17 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Heavy snow fell through much of Yellowstone. The highest amount recorded was 18 inches at the Two Oceans Plateau SNOTEL site.

Winter Storm in SALT RIVER & WYOMING RANGES, WYOMING
From 06-FEB-17 08:00:00 to 07-FEB-17 22:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Very heavy snow fell across the Salt and Wyoming range. The highest amount recorded was 32 inches at the Indian Creek SNOTEL. Other impressive amounts included 23 inches at the Willow Creek SNOTEL and 22 inches at Commissary Ridge.

Winter Storm in WIND RIVER MOUNTAINS WEST, WYOMING
From 06-FEB-17 12:00:00 to 07-FEB-17 22:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Heavy snow occurred in much of the western slopes of the Tetons. The maximum snowfall amount was 20 inches at the Kendall Ranger Station. A combination of snow and strong wind closed South Pass for several hours as well.

Winter Storm in STAR VALLEY, WYOMING
From 06-FEB-17 13:00:00 to 07-FEB-17 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy snow fell in portions of the Star Valley. Some of the heaviest amounts included 8 inches at Alpine and 6.5 inches at Afton.

Winter Storm in UPPER GREEN RIVER BASIN FOOTHILLS, WYOMING
From 06-FEB-17 10:00:00 to 07-FEB-17 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy snow occurred in portions of the Upper Green River Basin Foothills. The highest amount measured was 12.5 inches, 14 miles NW of Pinedale.

High Wind in LANDER FOOTHILLS, WYOMING
From 06-FEB-17 06:25:00 to 06-FEB-17 08:10:00 (MST-7)
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds occurred in Sinks Canyon State Park near Lander. Several wind gusts past 58 mph occurred with a maximum gust of 72 mph.

High Wind in GREEN MOUNTAINS & RATTLESNAKE RANGE, WYOMING
From 06-FEB-17 03:50:00 to 06-FEB-17 23:50:00 (MST-7)
Magnitude: 65.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

The RAWS sites at Camp Creek and Fales Rock had several wind gusts past 58 mph, including a maximum gust of 75 mph at each site.

High Wind in GREEN MOUNTAINS & RATTLESNAKE RANGE, WYOMING
From 07-FEB-17 15:50:00 to 08-FEB-17 10:00:00 (MST-7)
Magnitude: 94.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

High winds were recorded in many locations through the Green and Rattlesnake Range. The windiest spot was Camp Creek where a maximum wind gust of 94 mph was recorded.

High Wind in SOUTH LINCOLN COUNTY, WYOMING
From 07-FEB-17 19:10:00 to 07-FEB-17 19:50:00 (MST-7)
Magnitude: 51.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The Kemmerer airport had a maximum wind gust of 59 mph.

High Wind in EAST SWEETWATER COUNTY, WYOMING
From 07-FEB-17 15:33:00 to 07-FEB-17 23:41:00 (MST-7)
Magnitude: 60.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High winds blew across portions of Eastern Sweetwater County. The maximum wind gust at the Rock Springs airport was 60 mph.

Winter Storm in TETON & GROS VENTRE MOUNTAINS, WYOMING
From 06-FEB-17 02:00:00 to 07-FEB-17 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Very heavy snow fell in the Tetons. At the Jackson Hole Sky resort, 35 inches of new snow was measured. Other locations that received over 2 feet, included 27 inches at the Granite Creek SNOTEL and 26 inches at the Phillips Bench SNOTEL. In addition, snow, blowing snow and avalanches closed many major roads, including the roads at Hoback Junction and Highway 22 over Teton Pass.

Winter Storm in JACKSON HOLE, WYOMING
From 06-FEB-17 02:00:00 to 07-FEB-17 17:00:00 (MST-7)
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy snow fell throughout the Jackson Valley. The highest amounts were near Wilson, where 16 inches of new snow fell. Near the Jackson Dam, there was 9.5 inches of new snow. In Jackson, a very heavy snow load led to the collapse of the roof on the Sears Department Store. Near Teton Village, strong winds estimated over 70 mph, combined with heavy snow to down 17 power poles which led to a power outage lasting through the 11th. Jackson Hole Ski resort was closed through Monday the 13th.

Winter Storm in WIND RIVER MOUNTAINS EAST, WYOMING
From 06-FEB-17 11:00:00 to 08-FEB-17 02:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy snow fell in portions of the Cody Foothills. Around Wapati, Cody and Clark, 6 to 8 inches of new snow occurred. Snowfall amounts dropped rapidly further south.

Winter Storm in NATRONA COUNTY LOWER ELEVATIONS, WYOMING
From 06-FEB-17 12:00:00 to 06-FEB-17 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The wind sensor along Wyoming Boulevard south of Casper had several wind gusts past 58 mph, including a maximum of 65 mph.