A collapsing line of showers and thunderstorms over the Snowy mountain range generated a long-lived gust front.  This front produced very strong winds as it raced east across southern Albany, Platte and Laramie counties.  A peak wind gust of 90 mph was recorded at the Laramie Airport.  Numerous trees and several utility poles were toppled.  More than 2000 customers were without power.

Thunderstorm Wind in ALBANY, WYOMING
From 27-JUN-17 16:22:00 to 27-JUN-17 16:22:00 (MST-7)
Location: (LAR)BREESE FIELD
Magnitude: 78.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The wind sensor at the Laramie Airport measured a peak gust of 90 mph.  The very strong winds uprooted and snapped trees, crushing homes and vehicles, downed utility poles, and ruptured a gas line in Laramie.  Two dozen large trees were down in the parks and Greenhill cemetery.  Power outages affected more than 2000 customers.  No injuries were reported.

Thunderstorm Wind in LARAMIE, WYOMING
From 27-JUN-17 16:43:00 to 27-JUN-17 16:55:00 (MST-7)
Location: HECLA
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The WYDOT sensors at Wildcat Trail and Otto Road measured peak wind gusts between 58 and 61 mph.

Thunderstorm Wind in ALBANY, WYOMING
From 27-JUN-17 16:37:00 to 27-JUN-17 16:42:00 (MST-7)
Location: BUFORD
Magnitude: 66.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The WYDOT sensors at Buford East and Lone Tree measured wind gusts between 60 and 76 mph.

Thunderstorm Wind in LARAMIE, WYOMING
From 27-JUN-17 16:55:00 to 27-JUN-17 17:00:00 (MST-7)
Location: OTTO
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The WYDOT sensors at Whitaker, Interstate 80 mile post 363 and Bear Creek measured peak wind gusts between 58 and 68 mph.

Thunderstorm Wind in LARAMIE, WYOMING
From 27-JUN-17 17:08:00 to 27-JUN-17 17:08:00 (MST-7)
Location: CHEYENNE
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind sensor near Cheyenne measured a peak gust of 62 mph.

Thunderstorm Wind in PLATTE, WYOMING
From 27-JUN-17 17:10:00 to 27-JUN-17 17:16:00 (MST-7)
Location: FERGUSON CORNER
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The WYDOT sensors at Coleman and Bordeaux measured peak wind gusts between 58 and 60 mph.

Thunderstorm Wind in ALBANY, WYOMING
From 27-JUN-17 16:30:00 to 27-JUN-17 16:35:00 (MST-7)
Location: VEDAUWOO
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The WYDOT sensors at Vedauwoo and Summit East measured wind gusts between 58 and 65 mph.

Thunderstorm Wind in LARAMIE, WYOMING
From 27-JUN-17 17:25:00 to 27-JUN-17 17:37:00 (MST-7)
Location: GUN BARREL
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Peak wind gusts between 60 and 67 mph were observed from south of Meriden to Albin.

Thunderstorm Wind in LARAMIE, WYOMING
From 27-JUN-17 17:02:00 to 27-JUN-17 17:02:00 (MST-7)
Location: (CYS)CHEYENNE AIRPORT
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The wind sensor at the Cheyenne Airport measured a peak gust of 60 mph.