A strong low pressure system moving across the Rockies created a tight surface pressure gradient that caused high winds to develop across the area during the morning hours.

High Wind in SOUTH LARAMIE RANGE, WYOMING
From 17-JUN-10 07:30:00 to 17-JUN-10 07:31:00 (MST-7)
Magnitude: 51.00 MG
Reported by: Mesonet

Sustained winds of 42 MPH.  Reported from UPR sensor at Lynch.

High Wind in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 17-JUN-10 08:00:00 to 17-JUN-10 08:01:00 (MST-7)
Magnitude: 50.00 MG
Reported by: Mesonet

Sustained winds at or above 40 MPH occurred from 0815 to 0915MST.  Reported from UPR sensor at Emkay.

High Wind in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 17-JUN-10 08:45:00 to 17-JUN-10 08:46:00 (MST-7)
Magnitude: 53.00 MG
Reported by: Mesonet

Reported from UPR sensor at Emkay.

High Wind in CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY, WYOMING
From 17-JUN-10 08:40:00 to 17-JUN-10 08:41:00 (MST-7)
Magnitude: 66.00 MG
Reported by: Mesonet

Sustained wind of 48 MPH.

High Wind in CONVERSE COUNTY LOWER ELEVATIONS, WYOMING
From 17-JUN-10 08:09:00 to 17-JUN-10 08:11:00 (MST-7)
Magnitude: 50.00 MG
Reported by: ASOS

High Wind in CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY, WYOMING
From 17-JUN-10 09:25:00 to 17-JUN-10 09:26:00 (MST-7)
Magnitude: 52.00 MG
Reported by: Mesonet

Sustained winds of 41 MPH.

High Wind in CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY, WYOMING
From 17-JUN-10 09:45:00 to 17-JUN-10 09:46:00 (MST-7)
Magnitude: 51.00 MG
Reported by: Mesonet

High Wind in GOSHEN COUNTY, WYOMING
From 17-JUN-10 09:54:00 to 17-JUN-10 09:56:00 (MST-7)
Magnitude: 52.00 EG
Reported by: Trained Spotter

High winds caused trees to be blown over.  This lead to power outages across town.

High Wind in EAST PLATTE COUNTY, WYOMING
From 17-JUN-10 10:44:00 to 17-JUN-10 10:45:00 (MST-7)
Magnitude: 52.00 MG
Reported by: RAWS

Sustained winds of 37 MPH.  Reported from RAWS sensor at Dodge Creek.

High Wind in CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY, WYOMING
From 17-JUN-10 10:50:00 to 17-JUN-10 10:51:00 (MST-7)
Magnitude: 50.00 MG
Reported by: Mesonet

High Wind in EAST PLATTE COUNTY, WYOMING
From 17-JUN-10 05:00:00 to 17-JUN-10 05:02:00 (MST-7)
Magnitude: 54.00 MG
Reported by: Mesonet

Sustained winds were 48 MPH.  Report came from the sensor at Coleman.  Estimated time of report.

High Wind in CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY, WYOMING
From 17-JUN-10 05:40:00 to 17-JUN-10 05:42:00 (MST-7)
Magnitude: 56.00 MG
Reported by: Mesonet

Gusts above 60 mph continued through 600MST.  Sustained winds were 35 to 45 MPH.

High Wind in NORTH SNOWY RANGE FOOTHILLS, WYOMING
From 17-JUN-10 06:31:00 to 17-JUN-10 06:32:00 (MST-7)
Magnitude: 52.00 MG
Reported by: Mesonet

Sustained winds of 31 MPH.

High Wind in SOUTH LARAMIE RANGE, WYOMING
From 17-JUN-10 06:55:00 to 17-JUN-10 06:56:00 (MST-7)
Magnitude: 54.00 MG
Reported by: Mesonet

Gusts of 58 to 62 MPH reported through 0900MST.

High Wind in CONVERSE COUNTY LOWER ELEVATIONS, WYOMING
From 17-JUN-10 07:10:00 to 17-JUN-10 07:11:00 (MST-7)
Magnitude: 52.00 MG
Reported by: ASOS

High Wind in EAST PLATTE COUNTY, WYOMING
From 17-JUN-10 07:15:00 to 17-JUN-10 07:17:00 (MST-7)
Magnitude: 56.00 EG
Property damage: 10.00K
Reported by: Emergency Manager

Large tree limbs broken.  Two repeater towers lost power.

High Wind in EAST PLATTE COUNTY, WYOMING
From 17-JUN-10 09:02:00 to 17-JUN-10 09:02:00 (MST-7)
Magnitude: 52.00 EG
Property damage: 2.00K
Reported by: Emergency Manager

Semi and trailer blown over at I-25 mile marker 105, 25 N of Wheatland, and blocked both lanes of south bound traffic.

High Wind in CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY, WYOMING
From 17-JUN-10 08:02:00 to 17-JUN-10 08:02:00 (MST-7)
Magnitude: 52.00 EG
Property damage: 2.00K
Reported by: Emergency Manager

At mile marker 70 on I-25, 9 S of Wheatland, a semi and trailer were blown over.