Westerly flow aloft began to increase ahead of a broad trough over the Pacific Northwest. H700 winds of 60 to 80 kts were common and a stable layer near the mountain top level created favorable conditions for breaking mountain waves. At the surface, a couple of lee side troughs moved through the Canadian prairies, which provided a tight pressure gradient over the region.

Strong Wind in NORTH ROCKY MOUNTAIN FRONT, MONTANA
From 01-NOV-20 00:00:00 to 01-NOV-20 00:00:00 (MST-7)
Magnitude: 48.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A 48 kt wind gust measured.

High Wind in TOOLE, MONTANA
From 05-NOV-20 10:30:00 to 05-NOV-20 10:30:00 (MST-7)
Magnitude: 65.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

MDT Sunburst station measures a 65 kt (75 mph) non-thunderstorm wind gust.

High Wind in TOOLE, MONTANA
From 05-NOV-20 11:02:00 to 05-NOV-20 11:02:00 (MST-7)
Magnitude: 62.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station at Kevin measured a 62 kt (71 mph) non-thunderstorm wind gust.

High Wind in SOUTHERN ROCKY MOUNTAIN FRONT, MONTANA
From 04-NOV-20 08:28:00 to 04-NOV-20 08:28:00 (MST-7)
Magnitude: 70.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter at 3 SSE Bynum measured a 70 kt (81 mph) non-thunderstorm wind gust. Also, had a sustained winds of 53 kt (61 mph) for 10 minutes.

High Wind in NORTH ROCKY MOUNTAIN FRONT, MONTANA
From 05-NOV-20 01:24:00 to 05-NOV-20 01:24:00 (MST-7)
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

MDT at 2 SE Browning station measured a 63 kt (72 mph) non-thunderstorm wind gust.

High Wind in EASTERN GLACIER, MONTANA
From 05-NOV-20 05:20:00 to 05-NOV-20 05:20:00 (MST-7)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The Cut Bank Airport measured a 53 kt (61 mph) non-thunderstorm wind gust.

High Wind in SOUTHERN ROCKY MOUNTAIN FRONT, MONTANA
From 05-NOV-20 05:44:00 to 05-NOV-20 05:44:00 (MST-7)
Magnitude: 65.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station at Upper Elk Creek measured a 65 kt (75 mph) non-thunderstorm wind gust.

High Wind in MEAGHER, MONTANA
From 05-NOV-20 10:24:00 to 05-NOV-20 10:24:00 (MST-7)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station at 14 WNW Ringling measured a 51 kt (59 mph) non-thunderstorm wind gust.

High Wind in EASTERN PONDERA, MONTANA
From 05-NOV-20 08:00:00 to 05-NOV-20 08:00:00 (MST-7)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station at 6 NW Ledger measured a 56 kt (64 mph) non-thunderstorm wind gust.

High Wind in SOUTHERN ROCKY MOUNTAIN FRONT, MONTANA
From 05-NOV-20 11:49:00 to 05-NOV-20 11:49:00 (MST-7)
Magnitude: 69.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station at Upper Elk Creek measured a 69 kt (79 mph) non-thunderstorm wind gust.

High Wind in SOUTHERN LEWIS AND CLARK, MONTANA
From 05-NOV-20 12:14:00 to 05-NOV-20 12:14:00 (MST-7)
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station Iron Ridge (6 SSE Marysville) measured a 55 kt (63 mph) non-thunderstorm wind gust.

High Wind in EASTERN PONDERA, MONTANA
From 05-NOV-20 11:15:00 to 05-NOV-20 11:15:00 (MST-7)
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station at 7 NNE Valier measured a 63 kt (72 mph) non-thunderstorm wind gust.

High Wind in EASTERN GLACIER, MONTANA
From 05-NOV-20 10:30:00 to 05-NOV-20 10:30:00 (MST-7)
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station 10 S Cut Bank measured a 63 kt (73 mph) non-thunderstorm wind gust.

High Wind in LIBERTY, MONTANA
From 05-NOV-20 11:31:00 to 05-NOV-20 11:31:00 (MST-7)
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station Chester (14 NNW Joplin) measured a 61 kt (70 mph) non-thunderstorm wind gust.

High Wind in HILL, MONTANA
From 05-NOV-20 11:30:00 to 05-NOV-20 11:30:00 (MST-7)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station 15 NNE Gildford measured a 51 kt (59 mph) non-thunderstorm wind gust.

High Wind in HILL, MONTANA
From 05-NOV-20 11:30:00 to 05-NOV-20 11:30:00 (MST-7)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station 18 NNW Havre measured a 51 kt (59 mph) non-thunderstorm wind gust.