Strong, moist westerly flow off the Pacific Ocean brought abundant moisture to the mountains and valleys of western Wyoming. The precipitation fell as snow in the mountains, with the heaviest snow of 12 to 18 inches falling in the Salt River, Wyoming, and western Wind River ranges. The position and strength of a jet streak helped to produce and sustain persistent snow in a swath from Big Piney to Pinedale in Sublette County. Snowfall rates reached up to 2 inches an hour during the late evening of Sunday, October 16, and early morning hours of Monday, October 17. Totals within this heavy snow band ranged from 8 inches to 15 inches with the greatest totals from around Daniel to Pinedale. In Big Piney, the heavy, wet snow caused the collapse of a school bus building roof. East of the Continental Divide the story was strong downslope wind. Wind gusts in the Lander Foothills topped 70 mph with a peak of 80 mph along the North Fork of the Popo Agie River. The strong winds blew over a tree in a Lander residential area.

Winter Storm in UPPER GREEN RIVER BASIN, WYOMING
From 16-OCT-16 19:00:00 to 17-OCT-16 06:00:00 (MST-7)
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Public

Heavy snow fell with widespread reports of 6 to 12 inches. At Big Piney, the heavy, wet snow caused the school bus barn's roof to collapse.

High Wind in LANDER FOOTHILLS, WYOMING
From 17-OCT-16 11:07:00 to 17-OCT-16 16:09:00 (MST-7)
Magnitude: 70.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A mountain wave developed over the Wind River Range and brought very strong winds to the Lander Foothills. Wind gusts past exceeding 60 mph occurred for several hours. The maximum wind gusts were 73 mph at the Lander Airport and 80 mph at a mesonet station in the North Fork Popo Agie River Canyon. A tree was uprooted and blown over in Lander.

High Wind in GREEN MOUNTAINS & RATTLESNAKE RANGE, WYOMING
From 17-OCT-16 11:10:00 to 17-OCT-16 18:50:00 (MST-7)
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

There were numerous wind gusts past 58 mph in portions of the Green Mountains and Rattlesnake Range. Some of the strongest gusts were 74 mph at Camp Creek and 65 mph at Fales Rock.

Winter Storm in STAR VALLEY, WYOMING
From 16-OCT-16 19:30:00 to 17-OCT-16 08:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A trained CoCoRaHS observer measured seven inches of snow at Star Valley Ranch.

Winter Storm in SALT RIVER & WYOMING RANGES, WYOMING
From 16-OCT-16 18:00:00 to 17-OCT-16 11:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

There were numerous reports of over a foot of snow in the Salt River and Wyoming ranges. The greatest total was an estimated 19 to 21 inches at the Spring Creek Divide SNOTEL.

Winter Storm in WIND RIVER MOUNTAINS WEST, WYOMING
From 16-OCT-16 21:00:00 to 17-OCT-16 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Pocket Creek SNOTEL reported an estimated 15 inches of new snow.

Winter Storm in UPPER GREEN RIVER BASIN FOOTHILLS, WYOMING
From 16-OCT-16 19:00:00 to 17-OCT-16 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

There were widespread reports over over 6 inches of snow, including 12 to 15 inches around Pinedale.

High Wind in NATRONA COUNTY LOWER ELEVATIONS, WYOMING
From 17-OCT-16 09:51:00 to 17-OCT-16 09:56:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind gusts to 58 mph were measured along Wyoming Boulevard on the south edge of Casper.