A compact shortwave over the Pacific Northwest raced across southern Canada, delivering a period of strong winds to parts of Central Montana. The wind was due to a combination of anomalously strong H700 and H850 winds associated with the approaching shortwave, strong diurnal mixing, passage of the cold front, and decent pressure rises (behind the
front).

High Wind in NORTH ROCKY MOUNTAIN FRONT, MONTANA
From 21-APR-18 10:51:00 to 21-APR-18 10:51:00 (MST-7)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Peak wind gust at the Two Medicine DOT sensor.

High Wind in CASCADE, MONTANA
From 21-APR-18 12:42:00 to 21-APR-18 12:42:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Peak wind gust at the Great Falls Airport.

High Wind in SOUTHERN ROCKY MOUNTAIN FRONT, MONTANA
From 21-APR-18 12:30:00 to 21-APR-18 12:30:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Peak wind gust at the Dellwo weather station.

High Wind in EASTERN GLACIER, MONTANA
From 21-APR-18 12:14:00 to 21-APR-18 12:14:00 (MST-7)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Peak wind gust at the Cut Bank Airport.

High Wind in SOUTHERN ROCKY MOUNTAIN FRONT, MONTANA
From 21-APR-18 13:36:00 to 21-APR-18 13:36:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Peak wind gust measured by the Pendroy DOT sensor.

High Wind in SOUTHERN ROCKY MOUNTAIN FRONT, MONTANA
From 21-APR-18 13:29:00 to 21-APR-18 13:29:00 (MST-7)
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

Peak wind gust measured by the Helena Portable RAWS #1.

High Wind in SOUTHERN ROCKY MOUNTAIN FRONT, MONTANA
From 21-APR-18 16:10:00 to 21-APR-18 16:10:00 (MST-7)
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Peak wind gust measured 12 miles SSE of Heart Butte.

High Wind in NORTH ROCKY MOUNTAIN FRONT, MONTANA
From 21-APR-18 16:49:00 to 21-APR-18 16:49:00 (MST-7)
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Peak wind gust measured by the DOT sensor 1 mile ENE of East Glacier Park.

High Wind in CHOUTEAU, MONTANA
From 21-APR-18 14:49:00 to 21-APR-18 14:49:00 (MST-7)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Peak wind gust measured by a mesonet sensor 9 miles SSW of Fort Benton.

High Wind in HILL, MONTANA
From 21-APR-18 16:51:00 to 21-APR-18 16:51:00 (MST-7)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Peak wind gust measured by a mesonet sensor 1 mile NE of Kremlin. Time estimated.

High Wind in SOUTHERN ROCKY MOUNTAIN FRONT, MONTANA
From 21-APR-18 12:49:00 to 21-APR-18 12:49:00 (MST-7)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Peak wind gust measured by a mesonet station in Choteau.

Wildfire in CASCADE, MONTANA
From 21-APR-18 14:00:00 to 21-APR-18 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Strong winds knocked down a power line into cured vegetation, causing a fire. The fire reportedly jumped the Sun River due to the strong winds. The number of acres burned is unknown.

High Wind in CASCADE, MONTANA
From 21-APR-18 14:00:00 to 21-APR-18 14:00:00 (MST-7)
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Strong winds knocked down a power line. Wind gust estimated.

High Wind in SOUTHERN ROCKY MOUNTAIN FRONT, MONTANA
From 21-APR-18 12:29:00 to 21-APR-18 12:29:00 (MST-7)
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

Initial strong wind gust measured by the Helena Portable RAWS #1.