Late in the afternoon of February 14th, a cold front began moving south across North-Central Montana. Along and just ahead of the front, a band of moderate to heavy snow developed. That band of snow eventually shifted south, impacting much of Southwest Montana, although snowfall rates lessened somewhat there. Behind the front, strong cold air advection combined with strong winds aloft produced widespread wind gusts of 30 to 50 mph. Also behind the front, areas of moderate to heavy upslope-enhanced snow developed along and north of the Little Belt Mountains. The combination of wind and snow allowed many areas in North-Central Montana to experience blizzard-like conditions for about one to two hours before the wind and snow began to subside late on the 14th and into the morning of the 15th. Severe driving conditions and several road closures were reported across much of the region. At the request of local sheriff���s offices, emergency travel only was requested for every county in North-Central Montana and three counties in Southwest Montana.

Winter Storm in CASCADE, MONTANA
From 14-FEB-18 19:15:00 to 14-FEB-18 19:15:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter located 8 miles S of Belt reported heavy snow and blowing snow were causing blizzard-like conditions. Estimated 6-inches of new snow since 16:00 MST, Feb 14th.

Winter Storm in HILL, MONTANA
From 14-FEB-18 21:33:00 to 14-FEB-18 21:33:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

US-2 closed between Chester and Havre due to snow and blowing snow.

Winter Storm in TOOLE, MONTANA
From 14-FEB-18 21:33:00 to 14-FEB-18 21:33:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

I-15 closed between Shelby and Canada border due to snow and blowing snow.

Winter Storm in NORTH ROCKY MOUNTAIN FRONT, MONTANA
From 14-FEB-18 21:33:00 to 14-FEB-18 21:33:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

US-89 closed between Browning and Saint Mary due to snow and blowing snow.

Winter Storm in CHOUTEAU, MONTANA
From 14-FEB-18 21:33:00 to 14-FEB-18 21:33:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Severe driving conditions due to snow and blowing snow along US-87 between Loma and Havre.

Winter Storm in EASTERN TETON, MONTANA
From 14-FEB-18 21:35:00 to 14-FEB-18 21:35:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Teton County Sheriff's Office reported numerous stranded motorists and auto accidents throughout the county due to snow and blowing snow.

Winter Storm in BLAINE, MONTANA
From 14-FEB-18 21:33:00 to 14-FEB-18 21:33:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Severe driving conditions due to snow and blowing snow along US-2 between Havre and Fort Belknap Agency.

Winter Storm in BROADWATER, MONTANA
From 14-FEB-18 21:33:00 to 14-FEB-18 21:33:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Severe driving conditions along US-287 between Lewis and Clark County line and Townsend due to snow and blowing snow.

Winter Storm in LIBERTY, MONTANA
From 14-FEB-18 21:33:00 to 14-FEB-18 21:33:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

US-2 closed between Chester and Havre due to snow and blowing snow.

Winter Storm in FERGUS, MONTANA
From 14-FEB-18 21:33:00 to 14-FEB-18 21:33:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

US-191 closed between Eddie's Corner and Harlowton due to snow and blowing snow.

Winter Storm in JUDITH BASIN, MONTANA
From 14-FEB-18 21:33:00 to 14-FEB-18 21:33:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

US-191 closed between Eddie's Corner and Harlowton due to snow and blowing snow.

Winter Storm in JEFFERSON, MONTANA
From 15-FEB-18 00:56:00 to 15-FEB-18 00:56:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Severe driving conditions due to snow and blowing snow along I-15 between Clancy and Boulder.

Winter Storm in SOUTHERN ROCKY MOUNTAIN FRONT, MONTANA
From 14-FEB-18 21:35:00 to 14-FEB-18 21:35:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Teton County Sheriff's Office reported numerous stranded motorists and auto accidents throughout the county due to snow and blowing snow.

Winter Storm in SOUTHERN LEWIS AND CLARK, MONTANA
From 14-FEB-18 18:40:00 to 14-FEB-18 18:40:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Snow chains required on towing units along US-12 from MacDonald Pass to Helena.