A strong Pacific storm brought cold air and abundant moisture to the area. A long duration upslope flow created favorable conditions for heavy snow. This storm produced dangerous winter storm conditions over a wide area of southeast Wyoming and western Nebraska. Interstates 80 and 25, as well as many state and local highways, were closed for significant periods of time causing problems for travelers and commerce. Reports of over 100 accidents were reported. One fatality was reported. There were many reports of snowfall in excess of 20 inches. As the snowfall was winding down, strong northerly winds were observed creating additional issues with blowing and drifting snow. Reports came in of drifts in the 4 to 6 feet range.

Heavy Snow in EAST LARAMIE COUNTY, WYOMING
From 27-OCT-09 20:00:00 to 30-OCT-09 21:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 12 inches of snow in Pine Bluffs at 8 AM on 10/29/2009 along with blowing snow.

Heavy Snow in SIERRA MADRE RANGE, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Divide Peak SNOTEL at 8,880 feet reported 14 inches of snow at 5 PM on 10/28/2009.

Heavy Snow in LARAMIE VALLEY, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Post Office

Post office employee reported 6 inches of snow in Centennial at 2 PM.

Heavy Snow in EAST PLATTE COUNTY, WYOMING
From 27-OCT-09 20:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter in Chugwater reported 7 inches of snow at 3 PM on 10/28/2009.

Heavy Snow in EAST PLATTE COUNTY, WYOMING
From 27-OCT-09 20:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter in Wheatland reported 6 inches of snow at 3 PM on 10/28/2009.

Heavy Snow in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 27-OCT-09 17:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Six inches of snow was reported 11 miles southeast of Horse Creek.

Heavy Snow in SIERRA MADRE RANGE, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Sandstone Ranger Station SNOTEL at 8,150 feet reported 15 inches of snow at 5 PM on 10/28/2009.

Heavy Snow in EAST PLATTE COUNTY, WYOMING
From 27-OCT-09 20:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Platte County Emergency Manager reported 10 inches of snow in Wheatland at 8 AM on 10/29/2009.

Heavy Snow in SNOWY RANGE, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located 5 miles south of Elk Mountain reported 20 inches of snow on the ground at 8 PM on 10/29/2009.

Heavy Snow in SHIRLEY BASIN, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public reported 12 inches of snow on the ground in Medicine Bow at 8 PM on 10/29/2009.

Heavy Snow in SIERRA MADRE RANGE, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Old Battle SNOTEL at 10,000 feet reported 32 inches of snow at 8 AM 10/28/2009.

Heavy Snow in SOUTH LARAMIE RANGE, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter in Buford reported 12 inches of snow at 2 PM on 10/28/2009.

Heavy Snow in LARAMIE VALLEY, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter in Rock River reported 12 inches of snow on the ground at 8 PM on 10/29/2009.

Heavy Snow in EAST LARAMIE COUNTY, WYOMING
From 27-OCT-09 20:00:00 to 30-OCT-09 21:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported 6 to 8 inches of snow in Pine Bluffs at 3 PM on 10/28/2009.

Heavy Snow in SOUTH LARAMIE RANGE, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter 6 miles north of Vedauwoo reported 18 inches of snow at 12 PM on 10/28/2009.

Heavy Snow in NORTH LARAMIE RANGE, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Windy Peak SNOTEL at 7,900 feet reported 12 inches of snow at 7 PM on 10/28/2009.

Heavy Snow in NORTH LARAMIE RANGE, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Laprele Creek SNOTEL at 8,375 feet reported 15 inches of snow at 4 PM on 10/28/2009.

Heavy Snow in CENTRAL LARAMIE COUNTY, WYOMING
From 27-OCT-09 19:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public reported 10 inches of snow 5 miles south southwest of Cheyenne at 9 AM on 10/29/2009.

Heavy Snow in CENTRAL LARAMIE COUNTY, WYOMING
From 27-OCT-09 19:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public reported 7 inches of snow on the ground 5 miles east of Cheyenne at 9 AM on 10/29/2009 with 0.72 inches of snow water equivalent.

Heavy Snow in EAST LARAMIE COUNTY, WYOMING
From 27-OCT-09 20:00:00 to 30-OCT-09 21:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public reported 21 inches of snow on the ground at 9 AM on 10/29/2009 in Burns.

Heavy Snow in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 27-OCT-09 17:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located in Buford reported 12 inches of snow at 2 PM.

Heavy Snow in SNOWY RANGE, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 15:00:00 (MST-7)
Reported by: Post Office

Post office employee reported 14 inches of snow 3 miles southwest of Centennial at 9 AM.

Heavy Snow in LARAMIE VALLEY, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located 3 miles east of Laramie reported one inch of new snow at 11 AM on 10/29/2009 with storm snowfall total of 8 inches. Snow drifts of 1 to 2 feet were also reported.

Heavy Snow in SNOWY RANGE, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located 4 miles south of Centennial reported 1 inch of new snow at 11 AM on 10/29/2009 with a storm snowfall total of 15 to 18 inches.

Heavy Snow in GOSHEN COUNTY, WYOMING
From 27-OCT-09 21:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located 13 miles northeast of Jay EM reported 2 inches of new snow at 9 AM on 10/29/2009 with a storm snowfall total of 6 inches.

Heavy Snow in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located 24 miles west southwest of Cheyenne reported 12 inches of snow on the ground at 9 AM 10/29/2009 with 3 foot drifts.

Heavy Snow in CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located 18 miles southwest of Wheatland reported 14 inches of snow on the ground at 9 AM on 10/29/2009 with snow drifts of 3 feet.

Heavy Snow in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 00:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter in Horse Creek reported 6 inches of new snow and 12 inches on the ground at 9 AM on 10/29/2009. Snow drifts of 2 feet were also reported.

Heavy Snow in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Employees at Curt Gowdy State Park reported 16 inches of new snow at 11 AM on 10/29/2009 with storm snowfall total of 26 inches. Five foot drifts were also reported.

Heavy Snow in SOUTH LARAMIE RANGE, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Crow Creek SNOTEL at 8,330 feet reported 23 inches of snow at 12 PM on 10/29/2009.

Heavy Snow in EAST LARAMIE COUNTY, WYOMING
From 27-OCT-09 20:00:00 to 30-OCT-09 21:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public reported 16 inches of snow on the ground in Pine Bluffs at 1 PM on 10/29/2009 with 2 to 3 foot drifts.

Heavy Snow in CONVERSE COUNTY LOWER ELEVATIONS, WYOMING
From 27-OCT-09 20:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement in Douglas reported 6 to 7 inches of snow on the ground at 5 PM on 10/29/2009.

Heavy Snow in CENTRAL LARAMIE COUNTY, WYOMING
From 27-OCT-09 19:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public reported 7 inches of new snow 3 miles west northwest of Cheyenne at 9 AM on 10/29/2009 with a storm snowfall total of 12 inches. Total snow water equivalent was 0.52 inches.

Heavy Snow in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located 3 miles south of Federal reported 8 inches of new snow at 9 AM on 10/29/2009 with a storm snowfall total of 20 inches. Snow drifts greater than 5 feet.

Heavy Snow in GOSHEN COUNTY, WYOMING
From 27-OCT-09 21:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located 14 miles west of Hawk Springs reported 18 inches of snow on the ground at 11 AM on 10/29/2009 with 3 to 4 foot drifts.

Heavy Snow in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located 22 miles northwest of Cheyenne reported 16 inches of snow on the ground at 9 AM with 3 to 4 foot snow drifts.

Heavy Snow in EAST PLATTE COUNTY, WYOMING
From 27-OCT-09 20:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter 8 miles south southeast of Guernsey reported 4 to 5 inches of new snow with a storm snowfall total of 14 inches.

Heavy Snow in CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located 15 miles north northwest of Wheatland reported 3 to 4 inches of new snow at 9 AM on 10/29/2009 with a storm snowfall total of 12 inches.

Heavy Snow in LARAMIE VALLEY, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located 4 miles southwest of Woods Landing reported 8 to 10 inches of snow on the ground at 11 AM on 10/29/2009.

Heavy Snow in GOSHEN COUNTY, WYOMING
From 27-OCT-09 21:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located 3 miles southwest of Yoder reported 10 inches of new snow with a storm snowfall total of 16 inches. Large drifts also reported.

Heavy Snow in CENTRAL LARAMIE COUNTY, WYOMING
From 27-OCT-09 19:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public reported 10 inches of snow on the ground 2 miles north northwest of Cheyenne at 9 AM on 10/29/2009 with 0.42 inches of snow water equivalent.

Heavy Snow in SNOWY RANGE, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Brooklyn Lake SNOTEL at 10,240 feet reported 23 inches of snow at 8 AM.

Heavy Snow in GOSHEN COUNTY, WYOMING
From 27-OCT-09 21:00:00 to 30-OCT-09 12:00:00 (MST-7)
Reported by: Mesonet

A report of 6 inches of snow was received from an observer 4 miles east southeast of La Grange.

Heavy Snow in GOSHEN COUNTY, WYOMING
From 27-OCT-09 21:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported 6 inches of snow in Torrington at 9 PM on 10/28/09.

Heavy Snow in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public reported 10 inches of snow on the ground at 9 AM on 10/29/2009 12 miles south southeast of Horse Creek.

Heavy Snow in GOSHEN COUNTY, WYOMING
From 27-OCT-09 21:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter 6 miles north of La Grange reported 12 inches of new snow with a storm snowfall total of 18 inches at 11 AM on 10/29/2009.

Heavy Snow in CENTRAL LARAMIE COUNTY, WYOMING
From 27-OCT-09 19:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Report of 6 inches of snow with 0.47 liquid from 5 miles northeast of Cheyenne.

Heavy Snow in SNOWY RANGE, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

North French Creek SNOTEL at 10,130 feet reported 29 inches of snow at 8 AM.

Heavy Snow in SNOWY RANGE, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Sand Lake SNOTEL at 10,050 feet reported 41 inches of snow at 8 AM.

Heavy Snow in CENTRAL LARAMIE COUNTY, WYOMING
From 27-OCT-09 19:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A cooperative observer located 7 miles northeast of Cheyenne reported 11 inches of new snow at 7 AM on 10/29/2009 with a storm snowfall total of 20 inches. Snow water equivalent of 1.16 inches.

Heavy Snow in CENTRAL LARAMIE COUNTY, WYOMING
From 27-OCT-09 19:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public reported 10 inches of snow on the ground 2 miles southeast of Cheyenne at 9 AM on 10/29/2009.

Heavy Snow in SOUTH LARAMIE RANGE, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located 23 miles north northeast of Laramie reported 13 inches of new snow and 19 inches total on the ground at 1 PM on 10/29/2009.

Heavy Snow in NORTH LARAMIE RANGE, WYOMING
From 27-OCT-09 18:00:00 to 30-OCT-09 00:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located 4 miles east of Garrett reported 16 inches of snow on the ground at 1 PM on 10/29/2009 with drifts of 2 to 4 feet.

Heavy Snow in EAST PLATTE COUNTY, WYOMING
From 27-OCT-09 20:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located 1 mile northeast of Chugwater reported 15 inches of snow on the ground at 9 AM on 10/29/2009 with snow drifts of 6 to 8 feet.

Heavy Snow in EAST PLATTE COUNTY, WYOMING
From 27-OCT-09 20:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located 1 mile south of Wheatland reported 12 inches of snow on the ground at 9 AM on 10/29/2009 with 6 foot snow drifts.

Heavy Snow in EAST LARAMIE COUNTY, WYOMING
From 27-OCT-09 20:00:00 to 30-OCT-09 21:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter 9 miles southeast of Burns reported 10 inches of snow at 8 AM on 10/29/2009.

Heavy Snow in EAST LARAMIE COUNTY, WYOMING
From 27-OCT-09 20:00:00 to 30-OCT-09 21:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public reported 10 inches of snow 4 miles northwest of Carpenter at 8 AM on 10/29/2009.

Heavy Snow in EAST LARAMIE COUNTY, WYOMING
From 27-OCT-09 20:00:00 to 30-OCT-09 21:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter in Albin reported 6 to 8 inches in the last 24 hours at 8 AM on 10/29/2009. The total snow fall at that time was 20 inches. Blowing snow was becoming a problem.

Heavy Snow in EAST LARAMIE COUNTY, WYOMING
From 27-OCT-09 20:00:00 to 30-OCT-09 21:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter 14 miles northwest of Albin reported a storm snowfall total of 16 inches at 9 AM on 10/29/2009. Blowing snow with large drifts.

Heavy Snow in EAST LARAMIE COUNTY, WYOMING
From 27-OCT-09 20:00:00 to 30-OCT-09 21:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located 4 miles south of Albin reported at storm snowfall total of 18 inches at 9 AM on 10/29/2009.

Heavy Snow in CENTRAL LARAMIE COUNTY, WYOMING
From 27-OCT-09 19:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located 33 miles north of Cheyenne reported 12 inches of snow on the ground at 9 AM on 10/29/2009. Strong north winds creating 6 to 8 foot drifts.