A major high wind event impacted most of Central Montana as the surface pressure gradient tightened across the region ahead of an approaching low pressure system. Mid level winds became quite strong (60 to 70 knots) during the afternoon, eventually mixing down to the surface at many locations over the plains and Southwest Montana valleys. The main system moved over the state Sunday with winds increasing ahead of the main Pacific frontal boundary. A second, stronger wave aloft pushed through the region on Monday before high winds began to subside.

High Wind in MADISON, MONTANA
From 29-SEP-13 07:33:00 to 29-SEP-13 07:33:00 (MST-7)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

High winds measuring 53KT (61MPH) were reported at the Norris Hill DOT site.

High Wind in TOOLE, MONTANA
From 29-SEP-13 08:37:00 to 29-SEP-13 08:37:00 (MST-7)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

High winds measuring 53KT (61MPH) were reported at the Sweetgrass DOT site on I-15.

High Wind in NORTH ROCKY MOUNTAIN FRONT, MONTANA
From 28-SEP-13 22:15:00 to 28-SEP-13 22:15:00 (MST-7)
Magnitude: 70.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

High winds measuring 70KT (80MPH) were reported at the Deep Creek RAWS 8 mi SE of East Glacier Park.

High Wind in FERGUS, MONTANA
From 29-SEP-13 08:46:00 to 29-SEP-13 08:46:00 (MST-7)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High winds measuring 52KT (60MPH) were reported at the Lewistown Airport ASOS.

High Wind in CHOUTEAU, MONTANA
From 29-SEP-13 11:09:00 to 29-SEP-13 11:09:00 (MST-7)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

High winds measuring 51KT (59MPH) were reported by road crew 1 mi SE of Big Sandy, MT.

High Wind in SOUTHERN ROCKY MOUNTAIN FRONT, MONTANA
From 29-SEP-13 09:50:00 to 29-SEP-13 10:50:00 (MST-7)
Magnitude: 36.00 MS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

High sustained winds measuring 36KT (41MPH) were reported 2 mi NW of Pendroy, MT.

High Wind in CASCADE, MONTANA
From 29-SEP-13 13:38:00 to 29-SEP-13 13:38:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

High winds measuring 50KT (58MPH) were reported at the NWS Great Falls WFO.

High Wind in MADISON, MONTANA
From 29-SEP-13 14:42:00 to 29-SEP-13 14:42:00 (MST-7)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

High winds measuring 51KT (59MPH) were reported at Raynolds Pass.

High Wind in BROADWATER, MONTANA
From 30-SEP-13 09:54:00 to 30-SEP-13 09:54:00 (MST-7)
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

High winds measuring 54KT (62MPH) were reported at the Elkhorn RAWS.

High Wind in CASCADE, MONTANA
From 30-SEP-13 03:15:00 to 30-SEP-13 03:15:00 (MST-7)
Magnitude: 66.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High winds measuring 66KT (76MPH) were reported in Cascade, MT.

High Wind in EASTERN GLACIER, MONTANA
From 30-SEP-13 14:54:00 to 30-SEP-13 14:54:00 (MST-7)
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High winds measuring 59KT (68MPH) were reported at the Cut Bank Airport ASOS.

High Wind in EASTERN GLACIER, MONTANA
From 30-SEP-13 16:15:00 to 30-SEP-13 16:15:00 (MST-7)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds measuring 53KT (61MPH) were reported at the Blackfeet Agrimet.

High Wind in EASTERN TETON, MONTANA
From 30-SEP-13 15:30:00 to 30-SEP-13 15:30:00 (MST-7)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds measuring 51KT (59MPH) were reported 6 mi SE of Dutton, MT.

High Wind in JUDITH BASIN, MONTANA
From 30-SEP-13 16:19:00 to 30-SEP-13 16:19:00 (MST-7)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

High winds measuring 52KT (60MPH) were reported at the Geyser DOT site.

High Wind in NORTH ROCKY MOUNTAIN FRONT, MONTANA
From 29-SEP-13 02:05:00 to 29-SEP-13 02:05:00 (MST-7)
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

High winds measuring 57KT (66MPH) were reported at the Heart Butte RAWS.

High Wind in BROADWATER, MONTANA
From 30-SEP-13 09:54:00 to 30-SEP-13 09:54:00 (MST-7)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

High winds measuring 52KT (60MPH) were reported at the Ginger RAWS.

High Wind in JUDITH BASIN, MONTANA
From 29-SEP-13 07:05:00 to 29-SEP-13 07:05:00 (MST-7)
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

High winds measuring 61KT (70MPH) were reported 2 mi SSE of Geyser, MT.

High Wind in CASCADE, MONTANA
From 30-SEP-13 16:40:00 to 30-SEP-13 16:40:00 (MST-7)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High winds measuring 56KT (64MPH) were reported at the Great Falls Airport.

High Wind in EASTERN TETON, MONTANA
From 29-SEP-13 06:22:00 to 29-SEP-13 06:22:00 (MST-7)
Magnitude: 70.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

High winds measuring 70KT (81MPH) were reported.

High Wind in SOUTHERN ROCKY MOUNTAIN FRONT, MONTANA
From 29-SEP-13 02:12:00 to 29-SEP-13 02:12:00 (MST-7)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds measuring 52KT (60MPH) were reported at the Theodore Roosevelt Ranch.

High Wind in EASTERN GLACIER, MONTANA
From 29-SEP-13 06:30:00 to 29-SEP-13 06:30:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds measuring 50KT (58MPH) were reported at the Blackfeet Agrimet.

High Wind in EASTERN GLACIER, MONTANA
From 29-SEP-13 10:55:00 to 29-SEP-13 10:55:00 (MST-7)
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High winds measuring 57KT (66MPH) were reported at the Cut Bank Airport ASOS.

High Wind in CASCADE, MONTANA
From 30-SEP-13 15:56:00 to 30-SEP-13 15:56:00 (MST-7)
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High winds measuring 54KT (62MPH) were reported at the Malmstrom Air Force Base ASOS.

High Wind in NORTH ROCKY MOUNTAIN FRONT, MONTANA
From 28-SEP-13 22:34:00 to 28-SEP-13 22:34:00 (MST-7)
Magnitude: 62.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

High winds measuring 62KT (71MPH) were reported at the Two Medicine Bridge DOT site 1 mi E of East Glacier Park.

High Wind in TOOLE, MONTANA
From 28-SEP-13 22:34:00 to 28-SEP-13 22:34:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds measuring 50KT (58MPH) were reported 8 mi WNW of Whitlash, MT.

High Wind in NORTH ROCKY MOUNTAIN FRONT, MONTANA
From 29-SEP-13 00:50:00 to 29-SEP-13 00:50:00 (MST-7)
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds measuring 57KT (66MPH) were reported at the Browning Airstrip 6 mi WNW of Browning, MT.

High Wind in CASCADE, MONTANA
From 30-SEP-13 17:02:00 to 30-SEP-13 17:02:00 (MST-7)
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High winds estimated at 52KT (60MPH) were reported 7 mi SW of Tracy, MT. Ten inch tree limbs down as well.

High Wind in NORTH ROCKY MOUNTAIN FRONT, MONTANA
From 27-SEP-13 16:00:00 to 27-SEP-13 16:00:00 (MST-7)
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

High winds measuring 63KT (72MPH) were reported at the Logan Pass Visitors Center.

High Wind in NORTH ROCKY MOUNTAIN FRONT, MONTANA
From 28-SEP-13 23:52:00 to 28-SEP-13 23:52:00 (MST-7)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High winds estimated at 50KT (58MPH) damaged structures and ripped an anemometer off a roof.

High Wind in SOUTHERN ROCKY MOUNTAIN FRONT, MONTANA
From 29-SEP-13 02:00:00 to 29-SEP-13 02:00:00 (MST-7)
Magnitude: 70.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds measuring 61KT (70MPH) were reported at the Dellwo MCSCN site.

High Wind in TOOLE, MONTANA
From 30-SEP-13 11:44:00 to 30-SEP-13 11:44:00 (MST-7)
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

High winds measuring 55KT (63MPH) were reported at the Sweetgrass DOT sensor on I-15.

High Wind in TOOLE, MONTANA
From 30-SEP-13 12:30:00 to 30-SEP-13 12:30:00 (MST-7)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds measuring 53KT (61MPH) were reported at the Crooked Coulee MCSCN site.

High Wind in GALLATIN, MONTANA
From 30-SEP-13 11:50:00 to 30-SEP-13 11:50:00 (MST-7)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High winds measuring 52KT (60MPH) were reported at the West Yellowstone Airport AWOS.

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

High winds measuring 50KT (58MPH) were reported 1 mi S of Rudyard, MT.

High Wind in TOOLE, MONTANA
From 30-SEP-13 14:25:00 to 30-SEP-13 14:25:00 (MST-7)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds measuring 53KT (61MPH) were reported at Galata, MT.

High Wind in CHOUTEAU, MONTANA
From 29-SEP-13 07:21:00 to 29-SEP-13 07:21:00 (MST-7)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

High winds measuring 51KT (59MPH) were reported 1 mi N of Loma, MT.

High Wind in BROADWATER, MONTANA
From 29-SEP-13 07:54:00 to 29-SEP-13 07:54:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

High winds measuring 50KT (58MPH) were reported at the Elkhorn RAWS.

High Wind in EASTERN PONDERA, MONTANA
From 30-SEP-13 13:11:00 to 30-SEP-13 13:11:00 (MST-7)
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

High winds measuring 61KT (70MPH) were reported in Conrad, MT.

High Wind in EASTERN PONDERA, MONTANA
From 30-SEP-13 13:38:00 to 30-SEP-13 13:38:00 (MST-7)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High winds measuring 53KT (61MPH) were reported 1 mi WSW of Conrad, MT.

High Wind in HILL, MONTANA
From 30-SEP-13 13:30:00 to 30-SEP-13 13:30:00 (MST-7)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds measuring 56KT (65MPH) were reported at Mud Lake.

High Wind in CASCADE, MONTANA
From 28-SEP-13 18:42:00 to 28-SEP-13 18:42:00 (MST-7)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds measuring 52KT (61MPH) were reported at Millegan.