A moist northwest flow aloft combined with a series of upper level disturbances to produce a prolonged period of moderate to heavy snowfall.  Heaviest snowfall amounts were estimated between 3 and 5 feet over the higher peaks of the Snowy and Sierra Madre ranges.  The upper North Platte River basin received four to eight inches of snow.  West to northwest winds gusting to 60 mph produced near zero visibilities in blowing and drifting on open mountain passes.

Winter Storm in SNOWY RANGE, WYOMING
From 28-JAN-13 03:00:00 to 31-JAN-13 11:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Brooklyn Lake SNOTEL site (elevation 10240 ft) estimated 30 inches of snow.

Winter Storm in SNOWY RANGE, WYOMING
From 28-JAN-13 03:00:00 to 31-JAN-13 11:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Cinnabar park SNOTEL site (elevation 9574 ft) estimated 34 inches of snow.

Winter Storm in SNOWY RANGE, WYOMING
From 28-JAN-13 03:00:00 to 31-JAN-13 11:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Medicine Bow SNOTEL site (elevation 10510 ft) estimated 56 inches of snow.

Winter Storm in SIERRA MADRE RANGE, WYOMING
From 28-JAN-13 03:00:00 to 31-JAN-13 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Divide Peak SNOTEL site (elevation 8880 ft) estimated a foot of snow.

Winter Storm in SIERRA MADRE RANGE, WYOMING
From 28-JAN-13 03:00:00 to 31-JAN-13 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Webber Springs SNOTEL site (elevation 9250 ft) estimated 26 inches of snow.

Winter Storm in SIERRA MADRE RANGE, WYOMING
From 28-JAN-13 03:00:00 to 31-JAN-13 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Whiskey Park SNOTEL site (elevation 8950 ft) estimated 44 inches of snow.

Winter Storm in UPPER NORTH PLATTE RIVER BASIN, WYOMING
From 28-JAN-13 03:00:00 to 29-JAN-13 21:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Six and a half inches of snow was measured in Saratoga.

Winter Storm in SNOWY RANGE, WYOMING
From 28-JAN-13 03:00:00 to 31-JAN-13 11:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Sand Lake SNOTEL site (elevation 10050 ft) estimated 24 inches of snow.

Winter Storm in SIERRA MADRE RANGE, WYOMING
From 28-JAN-13 03:00:00 to 31-JAN-13 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Battle Mountain SNOTEL site (elevation 7440 ft) estimated a foot of snow.

Winter Storm in SIERRA MADRE RANGE, WYOMING
From 28-JAN-13 03:00:00 to 31-JAN-13 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Sandstone Ranger Station SNOTEL site (elevation 8150 ft) estimated 16 inches of snow.

Winter Storm in SIERRA MADRE RANGE, WYOMING
From 28-JAN-13 03:00:00 to 31-JAN-13 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Old Battle SNOTEL site (elevation 10000 ft) estimated 30 inches of snow.

Winter Storm in SIERRA MADRE RANGE, WYOMING
From 28-JAN-13 03:00:00 to 31-JAN-13 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Blackhall Mountain SNOTEL site (elevation 9820 ft) estimated 34 inches of snow.

Winter Storm in SNOWY RANGE, WYOMING
From 28-JAN-13 03:00:00 to 31-JAN-13 11:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The North French Creek SNOTEL site (elevation 10130 ft) estimated 36 inches of snow.