Widespread frontally forced snowfall event across southeast Wyoming backed up against the South Laramie Range extending eastward along the Cheyenne Ridge leading to 6 to 12 inches of snow accumulation from Wheatland to Cheyenne and Pine Bluffs. Farther west, Laramie saw 8 inches of snow accumulation and Interstate 80 and 25 saw extended closures due to winter conditions.

Winter Weather in CONVERSE COUNTY LOWER ELEVATIONS, WYOMING
From 05-JAN-22 07:20:00 to 05-JAN-22 20:25:00 (MST-7)
Reported by: CoCoRaHS

CoCoRaHS observer in Glenrock reported 4 inches of snow accumulation. Snow accumulation around Douglas ranged from 2 to 3 inches.

Heavy Snow in GOSHEN COUNTY, WYOMING
From 05-JAN-22 08:25:00 to 06-JAN-22 04:00:00 (MST-7)
Reported by: CoCoRaHS

CoCoRaHS observer 4 miles east-southeast of La Grange reported 12 inches of snow accumulation by the morning of the 6th. Similar snowfall totals were reported across southern Goshen County. Additional CoCoRaHS and public reports across Goshen County near Torrington ranged from 4 to 8 inches. Heaviest snowfall according to the Torrington Airport ASOS station (KTOR) occurred between 11 AM MST and 3 PM MST on the 5th.

Heavy Snow in EAST PLATTE COUNTY, WYOMING
From 05-JAN-22 05:55:00 to 06-JAN-22 00:00:00 (MST-7)
Reported by: CoCoRaHS

CoCoRaHS observer in Wheatland reported 9.3 inches of snow accumulation. Additional reports across East Platte County ranged from 4 to 12 inches including 12 inches in Chugwater. Interstate 25 was closed from Wheatland to Douglas due to winter conditions for over 24 hours.

Heavy Snow in CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY, WYOMING
From 05-JAN-22 05:55:00 to 06-JAN-22 00:00:00 (MST-7)
Reported by: Public

Public reported 15 inches of snow accumulation 8 miles west of Chugwater. Additional reports across the Central Laramie Range vary from 10 to 12 inches including a CoCoRaHS observer 20 miles southwest of Wheatland with 11.7 inches.

Heavy Snow in EAST LARAMIE COUNTY, WYOMING
From 05-JAN-22 06:25:00 to 06-JAN-22 04:00:00 (MST-7)
Reported by: Public

Received report on social media of 13 inches of snow accumulation in Pine Bluffs by 5 PM MST on the 5th. Additional reports across northeast Laramie County near the Goshen County border ranged from 11 to 14 inches.

Heavy Snow in CENTRAL LARAMIE COUNTY, WYOMING
From 05-JAN-22 11:15:00 to 06-JAN-22 02:30:00 (MST-7)
Reported by: Official NWS Observations

Storm total snow observation from NWS office of 7.6 inches. CoCoRaHS observation around Cheyenne ranged from 6 to 10 inches. Heaviest snowfall according to the Cheyenne Airport ASOS station (KCYS) occurred between 12 PM MST and 4 PM MST on the 5th. Interstate 25 was closed from Cheyenne to Wheatland due to winter conditions for over 24 hours.

Heavy Snow in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 05-JAN-22 11:15:00 to 06-JAN-22 02:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported 7 inches of snow accumulation 10 miles west-northwest of Cheyenne. Nearby CoCoRaHS observer reported 6 inches of snow 6 miles southeast of Federal.

Heavy Snow in SOUTH LARAMIE RANGE, WYOMING
From 05-JAN-22 11:30:00 to 06-JAN-22 04:00:00 (MST-7)
Reported by: Public

Received report 3 miles southeast of Buford of 10 inches of snow accumulation by the morning of the 6th. Interstate 80 between Cheyenne and Laramie was closed due to winter conditions for nearly 48 hours.

Heavy Snow in LARAMIE VALLEY, WYOMING
From 05-JAN-22 06:50:00 to 06-JAN-22 04:00:00 (MST-7)
Reported by: CoCoRaHS

Received reports from CoCoRaHS observers and the public around Laramie of 7 to 10 inches of snow accumulation. Additionally, received report on the other side of the Laramie Valley (18 miles west of Laramie) of 7 inches of snow. Heaviest snowfall according to the Laramie Airport ASOS station (KLAR) occurred between 2 PM MST and 4 PM MST on the 5th.

Winter Weather in NORTH LARAMIE RANGE, WYOMING
From 05-JAN-22 05:00:00 to 06-JAN-22 00:00:00 (MST-7)
Reported by: SNOTEL

Windy Peak SNOTEL (Elev. 7900 feet) estimated 9 inches of snow accumulation with 0.5 inches of snow water equivalent and 18 to 1 snow to liquid ratios.

Winter Weather in CENTRAL CARBON COUNTY, WYOMING
From 05-JAN-22 03:45:00 to 05-JAN-22 23:40:00 (MST-7)
Reported by: Public

Report of 4 inches of snow accumulation in Rawlins. Additionally, CO-OP observer 1 mile north-northwest of Rawlins measured 3.5 inches of snow.

Heavy Snow in SIERRA MADRE RANGE, WYOMING
From 04-JAN-22 11:00:00 to 07-JAN-22 00:00:00 (MST-7)
Reported by: SNOTEL

Blackhall Mountain SNOTEL (Elev. 9820 feet) estimated 48 inches of snow accumulation over a multi-day period with 2.8 inches of snow water equivalent and snow to liquid ratios ranging from 15:1 to 18:1. Additional SNOTELs in the Sierra Madre Range at or above 8500 feet estimated 30 to 40 inches of snowfall over this period.

Winter Storm in NORTH SNOWY RANGE FOOTHILLS, WYOMING
From 05-JAN-22 06:00:00 to 06-JAN-22 04:00:00 (MST-7)
Reported by: Department of Highways

Interstate 80 between Laramie and Rawlins closed due to winter conditions for an extended period of time. Nearby CoCoRaHS observers reported 6 to 8 inches of snow accumulation including 7.5 inches in Elk Mountain.

Heavy Snow in SNOWY RANGE, WYOMING
From 04-JAN-22 11:00:00 to 07-JAN-22 00:00:00 (MST-7)
Reported by: SNOTEL

Brooklyn Lake SNOTEL (Elev. 10240 feet) estimated 41.4 inches of snow accumulation over a multi-day period with 2.3 inches of snow water equivalent and snow to liquid ratios of 18:1. Additional SNOTELs in the Snowy Range estimated 18 to 38 inches of snowfall over this period.