The first of two Chinook high wind events in 3 days occurred on November 13 in a strong southwest to west flow ahead of a low pressure system.

High Wind in SOUTHERN LEWIS AND CLARK, MONTANA
From 13-NOV-06 11:19:00 to 13-NOV-06 13:00:00 (MST-7)
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A gust to 66 mph was reported at MacDonald Pass.  Also, a 61 mph gust was measured near Silver City at 1204 pm.

High Wind in CHOUTEAU, MONTANA
From 13-NOV-06 11:37:00 to 13-NOV-06 14:00:00 (MST-7)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A gust to 60 mph was reported at the Loma DOT sensor.

High Wind in EASTERN GLACIER, MONTANA
From 13-NOV-06 11:37:00 to 13-NOV-06 13:00:00 (MST-7)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A gust to 59 mph was measured at the Cut Bank ASOS site.

High Wind in FERGUS, MONTANA
From 13-NOV-06 12:25:00 to 13-NOV-06 14:00:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A gust to 58 mph was reported at the Lewistown airport.

High Wind in HILL, MONTANA
From 13-NOV-06 13:14:00 to 13-NOV-06 14:30:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A gust to 58 mph was reported at the Inverness DOT sensor.

High Wind in LIBERTY, MONTANA
From 13-NOV-06 14:08:00 to 13-NOV-06 14:30:00 (MST-7)
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A gust to 67 mph was reported at Rudyard 16SW.

High Wind in BLAINE, MONTANA
From 13-NOV-06 13:26:00 to 13-NOV-06 14:30:00 (MST-7)
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A gust to 73 mph was reported at Chinook 11S.  Also, a 61 mph gust was reported at Fort Belknap.

High Wind in EASTERN TETON, MONTANA
From 13-NOV-06 10:48:00 to 13-NOV-06 12:00:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A gust to 58 mph was measured at the Pendroy DOT sensor at 1048 am.

High Wind in TOOLE, MONTANA
From 13-NOV-06 15:10:00 to 13-NOV-06 16:10:00 (MST-7)
Magnitude: 37.00 MS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Sustained winds of 43 mph were reported at the Sweet Grass DOT sensor.

High Wind in NORTH ROCKY MOUNTAIN FRONT, MONTANA
From 13-NOV-06 08:35:00 to 13-NOV-06 12:00:00 (MST-7)
Magnitude: 60.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A gust to 69 mph was reported at Heart Butte. Also, a 62 mph gust was recorded near East Glacier at 835 am.

High Wind in SOUTHERN ROCKY MOUNTAIN FRONT, MONTANA
From 13-NOV-06 09:40:00 to 13-NOV-06 12:00:00 (MST-7)
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A gust to 68 mph was measured at Pendroy 18W.  Also, a gust to 58 mph was measured at the Pendroy DOT sensor at 1048 am.

High Wind in CASCADE, MONTANA
From 13-NOV-06 09:45:00 to 13-NOV-06 14:00:00 (MST-7)
Magnitude: 67.00 MG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A period of high winds, with multiple reports of 58 to 68 mph gusts, occurred across the county between about 10 am and 2 pm. Winds damaged at least one roof, with some damage to vehicles from falling debris.

High Wind in JUDITH BASIN, MONTANA
From 13-NOV-06 11:16:00 to 13-NOV-06 13:00:00 (MST-7)
Magnitude: 38.00 MS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Sustained winds of 44 mph were reported near Judith Gap.