A large difference in surface pressure developed across southeast Wyoming and combined with increasing winds in the mid level of the atmosphere to produce a period of strong winds.

High Wind in NORTH SNOWY RANGE FOOTHILLS, WYOMING
From 12-DEC-10 08:00:00 to 12-DEC-10 08:00:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

WYDOT sensor at Arlington measured a gust of 58 mph.

High Wind in NORTH SNOWY RANGE FOOTHILLS, WYOMING
From 12-DEC-10 12:31:00 to 12-DEC-10 12:31:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

WYDOT sensor at Arlington recorded a gust of 58 mph.

High Wind in NORTH SNOWY RANGE FOOTHILLS, WYOMING
From 12-DEC-10 15:35:00 to 12-DEC-10 15:35:00 (MST-7)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

WYDOT sensor at Arlington recorded a gust of 60 mph.

High Wind in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 12-DEC-10 17:55:00 to 12-DEC-10 17:55:00 (MST-7)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

UP railroad sensor at Emkay recorded a gust of 64 mph.

High Wind in NORTH SNOWY RANGE FOOTHILLS, WYOMING
From 12-DEC-10 19:36:00 to 12-DEC-10 19:36:00 (MST-7)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

WYDOT sensor at Arlington recorded a gust of 60 mph.

High Wind in NORTH SNOWY RANGE FOOTHILLS, WYOMING
From 12-DEC-10 21:51:00 to 12-DEC-10 21:51:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

WYDOT sensor at Arlington measured a gust of 58 mph.

High Wind in CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY, WYOMING
From 12-DEC-10 22:20:00 to 12-DEC-10 22:20:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

WYDOT sensor at Bordeaux recorded a gust of 58 mph.

High Wind in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 12-DEC-10 22:45:00 to 12-DEC-10 22:45:00 (MST-7)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

UP railroad sensor at Emkay measured a gust of 64 mph.

High Wind in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 12-DEC-10 22:55:00 to 12-DEC-10 22:55:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

UP railroad sensor at Emkay recorded a gust of 58 mph.

High Wind in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 13-DEC-10 00:30:00 to 13-DEC-10 00:30:00 (MST-7)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

UP railroad sensor at Emkay recorded a gust of 65 mph.

High Wind in CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY, WYOMING
From 13-DEC-10 01:00:00 to 13-DEC-10 01:00:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

WYDOT sensor at Bordeaux measured a gust of 58 mph.

High Wind in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 13-DEC-10 01:00:00 to 13-DEC-10 01:00:00 (MST-7)
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

UP railroad sensor at Emkay measured a gust of 68 mph.

High Wind in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 13-DEC-10 01:01:00 to 13-DEC-10 01:01:00 (MST-7)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

WYDOT sensor at Wyo Hill recorded a gust of 58 mph.

High Wind in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 13-DEC-10 01:06:00 to 13-DEC-10 01:06:00 (MST-7)
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A COOP observer recorded a gust of 63 mph 18 WNW of Cheyenne.

High Wind in SOUTH LARAMIE RANGE, WYOMING
From 13-DEC-10 05:00:00 to 13-DEC-10 05:00:00 (MST-7)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

UP railroad sensor at Buford recorded a gust of 61 mph.

High Wind in NORTH SNOWY RANGE FOOTHILLS, WYOMING
From 12-DEC-10 07:11:00 to 12-DEC-10 12:06:00 (MST-7)
Magnitude: 42.00 MS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

WYDOT sensor at Arlington measured sustained winds in excess of 40 mph between 7 AM and Noon.