Strong westerly flow aloft continues to yield mild and windy conditions across much of the forecast area through Sunday. Occasional light snow, rain, and some mixed precipitation continues for the Northern Rockies through Saturday night, before transitioning to mostly snow thereafter. The most impactful weather remains above pass level. Colder air moves in aloft and snow accumulation becomes more efficient. High Wind Warnings for the Rocky Mountain Front and portions of North-central Montana expire at midnight but the windy conditions continue into Saturday. Although, the flow aloft will remain strong, warning criteria winds are  not forecast at the surface.

High Wind in EASTERN GLACIER, MONTANA
From 20-DEC-19 09:37:00 to 20-DEC-19 09:37:00 (MST-7)
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station mtbrn two medicine bridge (mt dot).

High Wind in EASTERN TETON, MONTANA
From 20-DEC-19 07:15:00 to 20-DEC-19 07:15:00 (MST-7)
Magnitude: 69.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station delmt dellwo (mcscn).

High Wind in EASTERN TETON, MONTANA
From 20-DEC-19 20:57:00 to 20-DEC-19 20:57:00 (MST-7)
Magnitude: 65.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station mtpnd pendroy (mt dot).

High Wind in EASTERN GLACIER, MONTANA
From 20-DEC-19 10:45:00 to 20-DEC-19 10:45:00 (MST-7)
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station shbm8, spring hill near browning.

High Wind in TOOLE, MONTANA
From 20-DEC-19 11:44:00 to 20-DEC-19 11:44:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station mtswt sweetgrass (mt dot).

High Wind in EASTERN GLACIER, MONTANA
From 21-DEC-19 12:13:00 to 21-DEC-19 12:13:00 (MST-7)
Magnitude: 65.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station mtbwg browning (mt dot).

High Wind in EASTERN GLACIER, MONTANA
From 21-DEC-19 00:37:00 to 21-DEC-19 00:37:00 (MST-7)
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station mtbrn two medicine bridge (mt dot).

High Wind in EASTERN TETON, MONTANA
From 21-DEC-19 12:45:00 to 21-DEC-19 12:45:00 (MST-7)
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mariner

Mesonet station mtm49 6.9 ne choteau (mt-meso).

High Wind in TOOLE, MONTANA
From 21-DEC-19 15:06:00 to 21-DEC-19 15:06:00 (MST-7)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station mtswt sweetgrass (mt dot).

High Wind in CASCADE, MONTANA
From 21-DEC-19 12:54:00 to 21-DEC-19 12:54:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Measured 5 wsw Great Falls.

High Wind in MADISON, MONTANA
From 20-DEC-19 09:12:00 to 20-DEC-19 10:27:00 (MST-7)
Magnitude: 38.00 MS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

MT dot station at norris hill recorded an average sustained wind of 44 mph from 9:12 am to 10:27 am.

High Wind in EASTERN TETON, MONTANA
From 21-DEC-19 18:09:00 to 21-DEC-19 18:09:00 (MST-7)
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Gleason raws.