A very strong and deep surface low moved across the Northern Rockies and Southern Canada on the 3rd and 4th. As a result of very tight pressure gradients across Central and Eastern Montana, very strong sustained and gusty winds were reported across the entire Billings Forecast Area.

High Wind in YELLOWSTONE, MONTANA
From 03-MAY-10 20:53:00 to 04-MAY-10 14:00:00 (MST-7)
Magnitude: 35.00 MS
Reported by: ASOS

Sustained winds of 40 mph with gusts over 58 mph were reported at the Billings airport.

High Wind in NORTHERN BIG HORN, MONTANA
From 04-MAY-10 15:00:00 to 04-MAY-10 19:00:00 (MST-7)
Magnitude: 35.00 MS
Reported by: Law Enforcement

Sustained winds of 40 mph with gusts over 58 mph were reported in Hardin.

High Wind in SOUTHERN BIG HORN, MONTANA
From 03-MAY-10 21:50:00 to 04-MAY-10 14:00:00 (MST-7)
Magnitude: 35.00 MS
Reported by: Department of Highways

Sustained winds of 40 mph with gusts over 58 mph were reported at the Aberdeen Hill DOT site.

High Wind in SOUTHERN WHEATLAND, MONTANA
From 04-MAY-10 05:55:00 to 04-MAY-10 15:00:00 (MST-7)
Magnitude: 35.00 MS
Reported by: Mesonet

Sustained winds of 40 mph with gusts over 58 mph were reported in Harlowton.

High Wind in GOLDEN VALLEY, MONTANA
From 04-MAY-10 07:30:00 to 04-MAY-10 15:00:00 (MST-7)
Magnitude: 35.00 MS
Reported by: Trained Spotter

Sustained winds of 40 mph with gusts over 58 mph were reported throughout the county.

High Wind in NORTHERN SWEET GRASS, MONTANA
From 04-MAY-10 08:46:00 to 04-MAY-10 15:00:00 (MST-7)
Magnitude: 35.00 MS
Reported by: Department of Highways

Sustained winds of 40 mph with gusts over 58 mph were reported in Reed Point.

High Wind in MUSSELSHELL, MONTANA
From 04-MAY-10 08:00:00 to 04-MAY-10 16:00:00 (MST-7)
Magnitude: 35.00 MS
Reported by: Trained Spotter

Sustained winds of 40 mph with gusts over 58 mph were reported in Roundup.

High Wind in TREASURE, MONTANA
From 04-MAY-10 14:45:00 to 04-MAY-10 16:00:00 (MST-7)
Magnitude: 35.00 MS
Reported by: Trained Spotter

Sustained winds of 40 mph with gusts over 58 mph were reported in Hysham.

High Wind in NORTHERN ROSEBUD, MONTANA
From 04-MAY-10 11:44:00 to 04-MAY-10 18:47:00 (MST-7)
Magnitude: 35.00 MS
Reported by: Department of Highways

Sustained winds of 40 mph with gusts over 58 mph were reported at the Hillside DOT site.

High Wind in SOUTHERN ROSEBUD, MONTANA
From 04-MAY-10 08:01:00 to 04-MAY-10 17:00:00 (MST-7)
Magnitude: 35.00 MS
Reported by: RAWS

Sustained winds of 40 mph with gusts over 58 mph were reported at the Badger Peak RAWS.

High Wind in FALLON, MONTANA
From 04-MAY-10 12:30:00 to 04-MAY-10 17:00:00 (MST-7)
Magnitude: 35.00 MS
Reported by: ASOS

Sustained winds of 40 mph with gusts over 58 mph were reported at the Baker airport.

High Wind in CARTER, MONTANA
From 04-MAY-10 16:55:00 to 04-MAY-10 18:00:00 (MST-7)
Magnitude: 35.00 MS
Reported by: County Official

Sustained winds of 40 mph with gusts over 58 mph were reported in Ekalaka.

High Wind in POWDER RIVER, MONTANA
From 04-MAY-10 13:30:00 to 04-MAY-10 18:00:00 (MST-7)
Magnitude: 35.00 MS
Reported by: Law Enforcement

Sustained winds of 40 mph with gusts over 58 mph were reported in Broadus.

High Wind in EASTERN CARBON, MONTANA
From 03-MAY-10 18:29:00 to 04-MAY-10 16:00:00 (MST-7)
Magnitude: 35.00 MS
Reported by: RAWS

Sustained winds of 40 mph with gusts over 58 mph were reported at the Hillsboro RAWS.

High Wind in NORTHERN STILLWATER, MONTANA
From 04-MAY-10 07:36:00 to 04-MAY-10 16:00:00 (MST-7)
Magnitude: 35.00 MS
Reported by: Trained Spotter

Sustained winds of 40 mph with gusts over 58 mph were reported in Park City.

High Wind in BEARTOOTH FOOTHILLS, MONTANA
From 04-MAY-10 08:46:00 to 04-MAY-10 14:00:00 (MST-7)
Magnitude: 43.00 MS
Reported by: Trained Spotter

Sustained winds of 50 mph were reported in Nye.

High Wind in LIVINGSTON AREA, MONTANA
From 03-MAY-10 14:00:00 to 04-MAY-10 14:00:00 (MST-7)
Magnitude: 43.00 MS
Reported by: ASOS

Sustained winds of 50 mph were reported at the Livingston airport.

High Wind in JUDITH GAP, MONTANA
From 03-MAY-10 21:00:00 to 04-MAY-10 09:00:00 (MST-7)
Magnitude: 35.00 MS
Reported by: Department of Highways

Sustained winds of 40 mph with gusts greater than 58 mph were reported in Judith Gap.

High Wind in CUSTER, MONTANA
From 04-MAY-10 12:53:00 to 04-MAY-10 18:00:00 (MST-7)
Magnitude: 35.00 MS
Reported by: ASOS

Sustained winds of 40 mph with gusts over 58 mph were reported at the Miles City airport.