An unusually strong early season cold front brought snow to extreme southeast Wyoming and the southern Nebraska panhandle. Interstate 80 was closed between Cheyenne and Rawlins from the night of October 9 until midday on October 10. Interstate 25 south of Cheyenne was closed for periods as well as several county roads. Law enforcement agencies reported many car accidents.

Heavy Snow in LARAMIE VALLEY, WYOMING
From 09-OCT-09 17:00:00 to 10-OCT-09 07:00:00 (MST-7)
Reported by: Trained Spotter

A trained spotter reported over 8 inches of snow one mile southeast of Laramie.
Another report of 7 inches of snow in Laramie by law enforcement.

Heavy Snow in CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY, WYOMING
From 09-OCT-09 16:00:00 to 11-OCT-09 08:00:00 (MST-7)
Reported by: Public

The public reported 8 inches of snow 12 miles west southwest of Wheatland.
At 16:00MST on 10/9, a COOP observer located 4 miles west of Chugwater measured 7.2 inches of snow.

Heavy Snow in SNOWY RANGE, WYOMING
From 09-OCT-09 15:00:00 to 10-OCT-09 01:00:00 (MST-7)
Reported by: SNOTEL

North French Creek SNOTEL at 10,130 feet reported an estimated 21 inches of snow.
Brooklyn Lake SNOTEL at 10,240 feet reported an estimated 16.5 inches of snow.
Sand Lake SNOTEL at 10,050 feet reported an estimated 16.5 inches of snow.

Heavy Snow in SOUTH LARAMIE RANGE FOOTHILLS, WYOMING
From 09-OCT-09 16:00:00 to 10-OCT-09 09:30:00 (MST-7)
Reported by: Trained Spotter

A trained spotter reported a snow depth of 17 inches 15 miles west of Cheyenne.
Another report at 16:00MST from a trained spotter located 15 miles west of Cheyenne with 6 inches of snow.  A third report at 17:00MST of 16 inches of snow was received from the public 18 miles west northwest of Cheyenne. Another report at 17:00MST, the public reported 12 inches of snow 12 miles west of Cheyenne. Another report at 17:00MST, the public reported that 13 inches of snow had fallen 5 miles south southwest of Cheyenne.  Another report at 17:00MST, the public reported 11 inches of snow 11 miles southeast of Horse Creek.

Heavy Snow in CENTRAL LARAMIE COUNTY, WYOMING
From 09-OCT-09 17:00:00 to 10-OCT-09 08:00:00 (MST-7)
Reported by: Trained Spotter

A trained spotter measured 12 inches of snow seven miles northeast of Cheyenne.
Another report, the public reported an estimated 6 inches of snow 25 miles north northeast of Cheyenne. The snow had 0.50 snow water equivalent.
The official snowfall amount measured at WFO Cheyenne was 8.1 inches, and the public reported that 10.5 inches of snow had fallen 3 miles south southwest of Cheyenne.

Heavy Snow in EAST LARAMIE COUNTY, WYOMING
From 09-OCT-09 18:00:00 to 10-OCT-09 07:00:00 (MST-7)
Reported by: Public

The public reported that 12 inches of snow had fallen in Albin.
Another report of an estimated 6 inches of snow was reported by law enforcement in Pine Bluffs.
The public reported an estimated 8 inches of snow in Burns.

Heavy Snow in SOUTH LARAMIE RANGE, WYOMING
From 09-OCT-09 15:00:00 to 10-OCT-09 03:00:00 (MST-7)
Reported by: SNOTEL

Crow Creek SNOTEL at 8,330 feet reported an estimated 18 inches of snow.

Heavy Snow in SHIRLEY BASIN, WYOMING
From 09-OCT-09 17:00:00 to 10-OCT-09 05:00:00 (MST-7)
Reported by: COOP Observer

A COOP observer measured 13 inches of snow in Medicine Bow.