A large and expansive winter storm from the Pacific Northwest and the Canadian Rockies followed an exact track through northeast Montana, bringing up to a foot of snow to some locations in less than 24 hours.

Heavy Snow in LITTLE ROCKY MOUNTAINS, MONTANA
From 02-FEB-19 21:00:00 to 04-FEB-19 02:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotters in and near the town of Zortman estimated 6 inches of new snowfall with some drifts in more exposed areas.

Heavy Snow in NORTHERN PHILLIPS, MONTANA
From 03-FEB-19 01:20:00 to 04-FEB-19 01:05:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Border Patrol agents at the Port of Morgan, measured 6 inches of new snow fall.

Heavy Snow in NORTHERN VALLEY, MONTANA
From 03-FEB-19 01:00:00 to 04-FEB-19 03:45:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter, at Opheim 5 S, estimated 6 inches of new snow fall and many drifts up to 2 feet high.

Heavy Snow in CENTRAL AND SOUTHERN VALLEY, MONTANA
From 03-FEB-19 00:10:00 to 04-FEB-19 04:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

At the NWS forecast office in Glasgow, 9.5 inches of new snow fall was measured.

Heavy Snow in GARFIELD, MONTANA
From 02-FEB-19 21:00:00 to 04-FEB-19 02:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Garfield County Dispatch office in Jordan estimated 6 inches of new snow fall.

Heavy Snow in DANIELS, MONTANA
From 03-FEB-19 01:00:00 to 04-FEB-19 04:50:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snow fall reports of at least 6 inches were common across Daniels County, with a maximum of 10 inches estimated by a trained spotter, 6 SW Scobey.

Heavy Snow in SHERIDAN, MONTANA
From 03-FEB-19 02:30:00 to 04-FEB-19 05:15:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Cooperative observer in Plentywood measured 7.3 inches of new snow fall.

Heavy Snow in WESTERN ROOSEVELT, MONTANA
From 03-FEB-19 00:00:00 to 04-FEB-19 05:20:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

While reports of 5 to 8 inches of snow fall were common across western Roosevelt County, the maximum of 8 inches of new snow fall was reported by a cooperative observer in Brockton.

Heavy Snow in EASTERN ROOSEVELT, MONTANA
From 03-FEB-19 01:30:00 to 04-FEB-19 05:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Cooperative observer in Culbertson reported 8 inches of new snow fall.

Heavy Snow in MCCONE, MONTANA
From 02-FEB-19 22:00:00 to 04-FEB-19 04:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

McCone County Dispatch reported 10 inches of new snow fall.

Winter Storm in CENTRAL AND SE PHILLIPS, MONTANA
From 03-FEB-19 19:20:00 to 04-FEB-19 06:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The Montana Department of Transportation closed I-94 from Glendive through eastern Dawson County due to severe winter driving conditions.  Snow fall reports of 4 to 5 inches were common across western Dawson County.

Heavy Snow in CENTRAL AND SE PHILLIPS, MONTANA
From 02-FEB-19 23:45:00 to 04-FEB-19 02:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple trained spotter from Malta to Saco measured or estimated 6 to 7 inches of new snow fall.

Heavy Snow in WIBAUX, MONTANA
From 03-FEB-19 03:00:00 to 04-FEB-19 05:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Wibaux County Dispatch reported 7 inches of new snow fall. I-94 was closed through Wibaux County from 19:20 MST on the 3rd to 06:00 MST on the 4th due to severe winter driving conditions.