A strong arctic airmass settled in over the Billings Forecast Area. At the same time, abundant Pacific moisture overrode this airmass. This resulted in a prolonged period of heavy snow across all of south central and southeast Montana. Snowfall amounts of 6 to 12 inches were common.

Winter Storm in FALLON, MONTANA
From 20-FEB-22 13:00:00 to 21-FEB-22 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 4 to 8 inches was reported across the area, along with snow-drifted roads.

Winter Storm in CUSTER, MONTANA
From 20-FEB-22 13:00:00 to 21-FEB-22 19:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 6 to 9 inches was reported across the area.

Winter Storm in NORTHERN ROSEBUD, MONTANA
From 20-FEB-22 13:00:00 to 21-FEB-22 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 4 to 8 inches was reported across the area.

Winter Storm in TREASURE, MONTANA
From 20-FEB-22 17:00:00 to 21-FEB-22 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 5 to 10 inches was reported across the area.

Winter Storm in PRYOR/NORTHERN BIGHORN MOUNTAINS, MONTANA
From 20-FEB-22 13:00:00 to 21-FEB-22 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 12 inches occurred across the area.

Winter Storm in CRAZY MOUNTAINS, MONTANA
From 20-FEB-22 12:00:00 to 21-FEB-22 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

South Fork Shields SNOTEL reported 12 inches of snow.

Winter Storm in SOUTHERN BIG HORN, MONTANA
From 20-FEB-22 17:00:00 to 21-FEB-22 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 6+ inches was reported across the area.

Winter Storm in SOUTHERN ROSEBUD, MONTANA
From 20-FEB-22 18:00:00 to 21-FEB-22 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 6+ inches, along with accidents, were reported across the area. In addition, chains were required on US 212.

Winter Storm in NORTHERN BIG HORN, MONTANA
From 20-FEB-22 17:00:00 to 21-FEB-22 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 6+ inches was reported across the area.

Winter Storm in CARTER, MONTANA
From 20-FEB-22 18:00:00 to 21-FEB-22 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 4-10 inches was reported across the area.

Winter Storm in POWDER RIVER, MONTANA
From 20-FEB-22 18:00:00 to 21-FEB-22 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 6+ inches and poor visibilities were reported across the area.

Winter Storm in SOUTHWESTERN YELLOWSTONE, MONTANA
From 20-FEB-22 14:45:00 to 21-FEB-22 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 5 to 7 inches, along with low visibilities, was reported across the area.

Winter Storm in NORTHERN SWEET GRASS, MONTANA
From 20-FEB-22 14:00:00 to 21-FEB-22 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy snow, black ice, low visibilities and numerous accidents were reported across the area.

Heavy Snow in BEARTOOTH FOOTHILLS, MONTANA
From 20-FEB-22 14:00:00 to 21-FEB-22 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 6 to 10 inches was reported across the area.

Winter Storm in NORTHERN STILLWATER, MONTANA
From 20-FEB-22 14:00:00 to 21-FEB-22 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 6 to 8 inches was reported across the area. Black ice, poor visibilities and numerous accidents were also reported.

Winter Storm in NORTHEASTERN YELLOWSTONE, MONTANA
From 20-FEB-22 14:30:00 to 21-FEB-22 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 5 to 7 inches, along with slick roads and low visibilities, was reported across the area.

Winter Storm in LIVINGSTON AREA, MONTANA
From 20-FEB-22 11:30:00 to 21-FEB-22 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall of 5 to 11 inches was reported across the area.