An area of low pressure crossed Wyoming and brought heavy snow and strong wind to much of the area. The heaviest snow fell in the favored northerly upslope areas, including Casper and Lander where anywhere from 8 to 12 inches of snow was recorded. Close to a foot of snow also fell near Green River and Rock Springs. Over a foot fell in some of the adjacent mountains as well. The snow also combined with winds that gusted over 50 mph at times that lowered visibility to near zero at times. This led to the closure of many roads for several hours, including Interstates 80 and 25.

Winter Storm in CASPER MOUNTAIN, WYOMING
From 21-JAN-19 12:00:00 to 22-JAN-19 10:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Heavy snow fell on Casper Mountain. Some amounts included 17 and 14 inches at the Reno Hill and Casper Mountains SNOTEL sites, respectively.

Winter Storm in NORTHEAST JOHNSON COUNTY, WYOMING
From 21-JAN-19 11:00:00 to 22-JAN-19 04:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A combination of snow and high wind brought sharply reduced visibility that closed Interstate 25 for several hours.

Winter Storm in SOUTHEAST JOHNSON COUNTY, WYOMING
From 21-JAN-19 11:00:00 to 22-JAN-19 04:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A combination of snow and high wind brought sharply reduced visibility that closed Interstate 25 for several hours.

Winter Storm in ROCK SPRINGS & GREEN RIVER, WYOMING
From 21-JAN-19 09:00:00 to 22-JAN-19 11:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Around Rock Springs and Green River, snowfall amounts ranged from 5 to 11 inches. The snow combined with strong winds to close Interstate 80 for several hours.

Winter Storm in EAST SWEETWATER COUNTY, WYOMING
From 21-JAN-19 10:00:00 to 22-JAN-19 10:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A combination of snow and strong winds brought near zero visibility at times to Eastern Sweetwater County. Interstate 80 was closed for several hours as a result.

Winter Storm in FLAMING GORGE, WYOMING
From 21-JAN-19 10:00:00 to 22-JAN-19 09:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter measured 11 inches of snow at the Buckboard Marina.

Winter Storm in WIND RIVER MOUNTAINS EAST, WYOMING
From 21-JAN-19 10:00:00 to 22-JAN-19 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter measured 13 inches of snow in the foothills of the Wind River Mountains near Lander. In addition, a combination of snow and strong winds closed South Pass for several hours during the height of the storm.

Winter Storm in LANDER FOOTHILLS, WYOMING
From 21-JAN-19 11:00:00 to 22-JAN-19 00:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotters measured anywhere from 4 to 8 inches around the Lander Foothills, with the highest amounts closer to Sinks Canyon State Park. At the Lander airport 4.2 inches of new snow was measured.

Winter Storm in GREEN MOUNTAINS & RATTLESNAKE RANGE, WYOMING
From 21-JAN-19 11:00:00 to 22-JAN-19 02:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A combination of snow and wind brought sharply reduced visibility that led to the closure of US Highway 287 for several hours.

Winter Storm in NATRONA COUNTY LOWER ELEVATIONS, WYOMING
From 21-JAN-19 13:00:00 to 22-JAN-19 09:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall amounts around Casper ranged anywhere from 2 to 8 inches, with the highest amounts closer to Casper Mountain. The snow combined with winds that gusted over 50 mph at times that sharply reduced visibility. The result was the closure of Interstate 25 for several hours on the night of January 21 to 22.