A Pacific trough and associated strong flow aloft brought strong surface winds to much of North-central and Southwest Montana on November 13th and 14th 2020. Surface winds strengthened well ahead of the approaching system as a tight pressure gradient developed between lee side troughing over the Canadian prairies and high pressure over Eastern Idaho and Wyoming. Once the trough axis passed, cold air advection helped bring the 50 to 70 kt H700 winds to the surface.

High Wind in CASCADE, MONTANA
From 13-NOV-20 01:49:00 to 13-NOV-20 01:49:00 (MST-7)
Magnitude: 56.00 MG
Reported by: Mesonet

Jeffrey station (5 SSE Stockett) measured a 56 kt (65 mph) non-thunderstorm wind gust.

High Wind in SOUTHERN ROCKY MOUNTAIN FRONT, MONTANA
From 13-NOV-20 04:54:00 to 13-NOV-20 04:54:00 (MST-7)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Miller Colony station (4 SSE Bynum) measured a 52 kt (60 mph) non-thunderstorm wind gust.

High Wind in NORTH ROCKY MOUNTAIN FRONT, MONTANA
From 13-NOV-20 03:07:00 to 13-NOV-20 03:07:00 (MST-7)
Magnitude: 55.00 MG
Reported by: Mesonet

MDT station at Two Medicine Bridge measured a 55 kt (63 mph) non-thunderstorm wind gust.

High Wind in NORTH ROCKY MOUNTAIN FRONT, MONTANA
From 13-NOV-20 09:34:00 to 13-NOV-20 09:34:00 (MST-7)
Magnitude: 56.00 MG
Reported by: Mesonet

Upper Elk Creek station (14 SW Augusta) measured a 56 kt (65 mph) non-thunderstorm wind gust.

High Wind in MADISON, MONTANA
From 13-NOV-20 09:42:00 to 13-NOV-20 09:42:00 (MST-7)
Magnitude: 50.00 MG
Reported by: Department of Highways

MDT Norris Hill station measured a 50 kt (58 mph) non-thunderstorm wind gust.

High Wind in MADISON, MONTANA
From 13-NOV-20 09:42:00 to 13-NOV-20 09:42:00 (MST-7)
Magnitude: 53.00 MG
Reported by: AWOS

Ennis big Sky Airport measured a 53 kt (61 mph) non-thunderstorm wind gust.

High Wind in NORTH ROCKY MOUNTAIN FRONT, MONTANA
From 13-NOV-20 12:22:00 to 13-NOV-20 12:22:00 (MST-7)
Magnitude: 51.00 MG
Reported by: Department of Highways

MDT station at Two Medicine Bridge measured a 51 kt (59 mph) non-thunderstorm wind gust.

High Wind in MEAGHER, MONTANA
From 13-NOV-20 14:40:00 to 13-NOV-20 14:40:00 (MST-7)
Magnitude: 54.00 MG
Reported by: Mesonet

White Sulphur Springs station (4 S White Sulphur Springs) measured a 54 kt (62 mph) non-thunderstorm wind gust.

High Wind in SOUTHERN LEWIS AND CLARK, MONTANA
From 14-NOV-20 06:13:00 to 14-NOV-20 06:13:00 (MST-7)
Magnitude: 54.00 MG
Reported by: Department of Highways

MDT Sieben station measured a 54 kt (62 mph) non-thunderstorm wind gust.

High Wind in MEAGHER, MONTANA
From 14-NOV-20 07:25:00 to 14-NOV-20 07:25:00 (MST-7)
Magnitude: 53.00 MG
Reported by: AWOS

White Sulphur Springs Airport measured a 53 kt (61 mph) non-thunderstorm wind gust.

High Wind in SOUTHERN LEWIS AND CLARK, MONTANA
From 14-NOV-20 07:56:00 to 14-NOV-20 07:56:00 (MST-7)
Magnitude: 50.00 MG
Reported by: Department of Highways

MDT MacDonald Pass station measured a 50 kt (58 mph) non-thunderstorm wind gust.

High Wind in FERGUS, MONTANA
From 14-NOV-20 15:15:00 to 14-NOV-20 15:15:00 (MST-7)
Magnitude: 56.00 MG
Reported by: AWOS

N Bar Ranch station (13 SSW Forestgrove) measured a 56 kt (64 mph) non-thunderstorm wind gust.

Strong Wind in CASCADE, MONTANA
From 15-NOV-20 15:00:00 to 15-NOV-20 15:00:00 (MST-7)
Magnitude: 47.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A visibly diseased pine fell onto a house during estimated 47 kt (54 mph) non thunderstorm wind gust.