Widespread winter storm with strong winds across the area led to blizzard conditions developing along and east of Interstate 25 in southeast Wyoming. Winds were not as strong farther west across Carbon and Albany in Wyoming but heavy snow was observed with accumulations over 12 inches in many spots. These conditions led to extended road closures of Interstates 25 and 80.

Blizzard in NIOBRARA COUNTY, WYOMING
From 13-DEC-22 16:00:00 to 14-DEC-22 09:00:00 (MST-7)
Reported by: Utility Company

Lusk Utility Company personnel reported blizzard conditions with visibility of one-quarter mile or less for over 3 hours. Nearby WYDOT mesonet station along US Highway 20 at Van Tassell reported winds 40 to 50 mph during this time.

Blizzard in GOSHEN COUNTY, WYOMING
From 13-DEC-22 11:00:00 to 13-DEC-22 17:00:00 (MST-7)
Reported by: ASOS

Torrington Airport ASOS station (KTOR) reported one-quarter mile visibility in falling and blowing snow during the afternoon of the 13th with wind gusts 35 to 45 mph. Public reported around 3 to 4 inches of snowfall near Torrington with higher amounts closer to 8 inches in southern Goshen County. Additionally, US Highway 85 was closed through Goshen County for an extended period of time.

Blizzard in EAST LARAMIE COUNTY, WYOMING
From 13-DEC-22 11:52:00 to 14-DEC-22 13:28:00 (MST-7)
Reported by: Fire Department/Rescue

Received report from Laramie County Fire District 5 of one-quarter visibility in falling and blowing snow for the majority of the day on the 13th. WYDOT mesonet station Gun Barrel (KGUN) along US Highway 85 reported wind gusts 35 to 40 mph with one-quarter mile visibility on the 13th. Visibility between one-quarter mile and 2 miles continued through the 14th with blowing snow due to strong winds gusting 35 to 40 mph. Public reported via social media 8 inches of snowfall in Pine Bluffs. Additionally, US Highway 85 was closed through Laramie County for an extended period of time.

Blizzard in CENTRAL LARAMIE COUNTY, WYOMING
From 13-DEC-22 10:00:00 to 13-DEC-22 14:30:00 (MST-7)
Reported by: Trained Spotter

Trained spotter in Hillsdale reported blizzard conditions throughout the day on the 13th with one-quarter mile visibility in falling and blowing snow and 3 foot snow drifts. Nearby CWOP mesonet station east of Hillsdale reported wind gusts 35 to 50 mph. Snowfall totals varied greatly with 2 to 4 inches near Cheyenne and up to foot near Hillsdale. Additionally, Interstate 80 was closed through Laramie County for an extended period of time.

Blizzard in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 13-DEC-22 11:00:00 to 13-DEC-22 20:30:00 (MST-7)
Reported by: Trained Spotter

Trained spotter located 12 miles south-southeast of Horse Creek reported 200 to 800 foot visibility in blowing snow with gusts up to 63 mph for over 3 hours. WYDOT mesonet station Whitaker (KWTR) along Interstate 25 reported one-quarter mile visibility and wind gusts 40 to 55 mph 16 miles east of Horse Creek. Additionally, Interstate 25 through Laramie County was closed for an extended period of time.

Blizzard in SOUTH LARAMIE RANGE, WYOMING
From 13-DEC-22 09:00:00 to 14-DEC-22 10:30:00 (MST-7)
Reported by: Department of Highways

WYDOT mesonet stations Summit East (WY28) and Vedauwoo (KVDW) along Interstate 80 reported one-quarter mile visibility in blowing snow and wind gust 50 to 60 mph. Additionally, Interstate 80 between Cheyenne and Laramie was closed for an extended period of time.

Winter Storm in FERRIS/SEMINOE/SHIRLEY MOUNTAINS, WYOMING
From 12-DEC-22 12:00:00 to 14-DEC-22 02:54:00 (MST-7)
Reported by: Trained Spotter

A 48-hour snowfall total of 6.0 inches was reported by a trained weather spotter located 4 miles NNE of Seminoe Dam.

Winter Storm in SHIRLEY BASIN, WYOMING
From 12-DEC-22 12:00:00 to 14-DEC-22 02:54:00 (MST-7)
Reported by: Trained Spotter

A trained weather spotter located at the Virginian Hotel in Medicine Bow reported one-tenth of an inch of ice accumulation, followed by 8-10 inches of snowfall over 48 hours. A maximum total of 15-17 inches was reported by a trained spotter near Shirley Basin.

Winter Storm in NORTH LARAMIE RANGE, WYOMING
From 12-DEC-22 12:00:00 to 14-DEC-22 02:54:00 (MST-7)
Reported by: Trained Spotter

High-elevation snowfall totals of 14-18 inches were reported over a period of 48 hours by a trained spotter located 16 miles SSW of Deer Creek in the northern Laramie Range in southwestern Converse County.

Winter Storm in CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY, WYOMING
From 13-DEC-22 03:00:00 to 14-DEC-22 02:54:00 (MST-7)
Reported by: Department of Highways

Interstate 25 was closed between Cheyenne and Wheatland from 11:57 AM MST on 12/13 until 8:52 AM MST on 12/14 due to winter conditions and multiple crashes. Highway reopened several hours after snow event ended. The NOHRSC National Snowfall Analysis suggests total snowfall accumulations ranged from 3 to 7 inches, mostly over the higher terrain. While snow amounts were less over Interstate 25, frequent wind gusts 35 to 45 MPH resulted in substantial reductions in visibility.

Winter Storm in LARAMIE VALLEY, WYOMING
From 12-DEC-22 21:00:00 to 14-DEC-22 02:54:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Interstate 80 was closed due to winter conditions between Laramie and Rawlins from 12:24 PM MST 12/13 until 2:18 PM MST on 12/14. Highway re-opened several hours after the snow event ended.

Winter Storm in CENTRAL CARBON COUNTY, WYOMING
From 12-DEC-22 12:00:00 to 14-DEC-22 02:54:00 (MST-7)
Reported by: SNOTEL

An estimated snowfall of 12.6 inches was recorded at the Sage Creek Basin SNOTEL located in the northern foothills of the Sierra Madre Range, south of Rawlins, at an elevation of 7850 feet.

Winter Storm in SOUTHWEST CARBON COUNTY, WYOMING
From 12-DEC-22 12:00:00 to 14-DEC-22 02:54:00 (MST-7)
Reported by: County Official

The Mayor of the town of Dixon reported 12.0 inches of snowfall.

Winter Storm in SIERRA MADRE RANGE, WYOMING
From 12-DEC-22 12:00:00 to 14-DEC-22 14:00:00 (MST-7)
Reported by: SNOTEL

Multiple SNOTEL sites recorded between 0.9 and 1.0 inches of liquid, yielding estimated snowfall totals of 15 to 18 inches throughout the Sierra Madre Range. A maximum total of 18 inches was recorded at the Old Battle SNOTEL (OLDW4) at an elevation of 10,000 feet.

Winter Storm in UPPER NORTH PLATTE RIVER BASIN, WYOMING
From 12-DEC-22 12:00:00 to 14-DEC-22 02:54:00 (MST-7)
Reported by: Public

A report of 12 to 14 inches of snowfall was received via social media from 5 miles east of Saratoga. 2 to 3+ foot drifts.

Winter Storm in SNOWY RANGE, WYOMING
From 12-DEC-22 12:00:00 to 14-DEC-22 14:00:00 (MST-7)
Reported by: SNOTEL

Multiple SNOTEL observations in the Snowy Range recorded an estimated 12 to 18 inches of snowfall. The public reported 14 inches of snow along Highway 130 at Ryan Park.