A fast-moving upper level low pressure trough combined with a moist upslope flow to produce widespread snowfall in southeast Wyoming.  Storm total snow accumulations ranged from two to five inches for the plains and valleys, to six to ten inches over the Laramie, Snowy and Sierra Madre ranges.  The combination of falling snow, gusty north winds and low visibilities created hazardous travel.  Interstate 80 between Laramie and Cheyenne was closed for several hours.

Winter Weather in GOSHEN COUNTY, WYOMING
From 24-OCT-12 04:00:00 to 25-OCT-12 04:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

An observer in Fort Laramie measured three inches of snow.

Winter Weather in SHIRLEY BASIN, WYOMING
From 24-OCT-12 05:00:00 to 25-OCT-12 05:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

An observer at Shirley Basin measured five and a half inches of snow.

Winter Weather in CENTRAL CARBON COUNTY, WYOMING
From 24-OCT-12 06:00:00 to 25-OCT-12 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

An observer 10 miles west-southwest of Rock River measured nearly six inches of snow.

Winter Weather in LARAMIE VALLEY, WYOMING
From 24-OCT-12 06:00:00 to 25-OCT-12 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

An observer one mile north-northeast of Laramie measured five inches of snow.

Winter Weather in LARAMIE VALLEY, WYOMING
From 24-OCT-12 06:00:00 to 25-OCT-12 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

An observer in Laramie measured nearly six inches of snow.

Winter Weather in EAST PLATTE COUNTY, WYOMING
From 24-OCT-12 06:00:00 to 25-OCT-12 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

An observer 13 miles south-southwest of Manville measured four inches of snow.

Winter Weather in CONVERSE COUNTY LOWER ELEVATIONS, WYOMING
From 24-OCT-12 06:00:00 to 25-OCT-12 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

An observer four miles west-southwest of Douglas measured five inches of snow.

Winter Weather in GOSHEN COUNTY, WYOMING
From 24-OCT-12 06:00:00 to 25-OCT-12 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

An observer 29 miles north of Torrington measured four inches of snow.

Winter Weather in UPPER NORTH PLATTE RIVER BASIN, WYOMING
From 24-OCT-12 06:00:00 to 25-OCT-12 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

An observer in Encampment measured eight inches of snow.

Winter Weather in SHIRLEY BASIN, WYOMING
From 24-OCT-12 06:00:00 to 25-OCT-12 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

An observer in Medicine Bow measured five inches of snow.

Winter Weather in CENTRAL LARAMIE COUNTY, WYOMING
From 24-OCT-12 06:00:00 to 25-OCT-12 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

An observer four miles north-northwest of Cheyenne measured three inches of snow.

Winter Weather in CENTRAL LARAMIE COUNTY, WYOMING
From 24-OCT-12 06:00:00 to 25-OCT-12 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

An observer two miles west of Cheyenne measured three inches of snow.

Winter Weather in CENTRAL LARAMIE COUNTY, WYOMING
From 24-OCT-12 06:00:00 to 25-OCT-12 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

An observer 11 miles north of Cheyenne measured three and a half inches of snow.

Winter Weather in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 24-OCT-12 06:00:00 to 25-OCT-12 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

An observer 12 miles south-southeast of Horse Creek measured three inches of snow.

Winter Weather in CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY, WYOMING
From 24-OCT-12 06:00:00 to 25-OCT-12 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

An observer at Wheatland Reservoir 3 measured three and a half inches of snow.

Winter Weather in SIERRA MADRE RANGE, WYOMING
From 24-OCT-12 07:00:00 to 25-OCT-12 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Webber Springs SNOTEL site (elevation 9250 ft) estimated eight inches of snow.

Winter Weather in SIERRA MADRE RANGE, WYOMING
From 24-OCT-12 07:00:00 to 25-OCT-12 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Old Battle SNOTEL site (elevation 10000 ft) estimated nearly 11 inches of snow.

Winter Weather in SIERRA MADRE RANGE, WYOMING
From 24-OCT-12 07:00:00 to 25-OCT-12 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Divide Peak SNOTEL site (elevation 8880 ft) estimated nearly five inches of snow.

Winter Weather in SNOWY RANGE, WYOMING
From 24-OCT-12 07:00:00 to 25-OCT-12 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The South Brush SNOTEL site (elevation 8440 ft) estimated six inches of snow.

Winter Weather in NORTH LARAMIE RANGE, WYOMING
From 24-OCT-12 07:00:00 to 25-OCT-12 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The La Prele Creek SNOTEL site (elevation 8375 ft) estimated eight inches of snow.

Winter Weather in NORTH LARAMIE RANGE, WYOMING
From 24-OCT-12 07:00:00 to 25-OCT-12 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Windy Peak SNOTEL site (elevation 7900 ft) estimated nearly 11 inches of snow.

Winter Weather in SOUTH LARAMIE RANGE, WYOMING
From 24-OCT-12 07:00:00 to 25-OCT-12 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Crow Creek SNOTEL site (elevation 8330 ft) estimated seven inches of snow.

Winter Weather in NIOBRARA COUNTY, WYOMING
From 24-OCT-12 07:00:00 to 25-OCT-12 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

An observer 11 miles north-northeast of Lance Creek measured three and a half inches of snow.

Winter Weather in LARAMIE VALLEY, WYOMING
From 24-OCT-12 07:00:00 to 25-OCT-12 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

An observer four miles southeast of Laramie measured four and a half inches of snow.

Winter Weather in SIERRA MADRE RANGE, WYOMING
From 24-OCT-12 07:00:00 to 25-OCT-12 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Whiskey Park SNOTEL site (elevation 8950 ft) estimated six inches of snow.

Winter Weather in SNOWY RANGE, WYOMING
From 24-OCT-12 07:00:00 to 25-OCT-12 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The North French Creek SNOTEL site (elevation 10130 ft) estimated nearly five inches of snow.

Winter Weather in SNOWY RANGE, WYOMING
From 24-OCT-12 07:00:00 to 25-OCT-12 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Sand Lake SNOTEL site (elevation 10050 ft) estimated six inches of snow.

Winter Weather in SIERRA MADRE RANGE, WYOMING
From 24-OCT-12 07:00:00 to 25-OCT-12 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Blackhall Mountain SNOTEL site (elevation 9820 ft) estimated seven inches of snow.

Winter Weather in SIERRA MADRE RANGE, WYOMING
From 24-OCT-12 07:00:00 to 25-OCT-12 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Sage Creek Basin SNOTEL site (elevation 7850 ft) estimated nearly five inches of snow.

Winter Weather in CENTRAL LARAMIE COUNTY, WYOMING
From 24-OCT-12 07:00:00 to 25-OCT-12 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

An observer seven miles northeast of Cheyenne measured three inches of snow.