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. Law enforcement reported many accidents. 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 BANNER, NEBRASKA
From 27-OCT-09 23:00:00 to 30-OCT-09 12:00:00 (MST-7)
Reported by: Trained Spotter

A trained spotter 2 miles south southeast of Harrisburg report 20 to 24 inches of snow with 4 foot drifts.

Heavy Snow in CHEYENNE, NEBRASKA
From 28-OCT-09 12:00:00 to 30-OCT-09 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A cooperative observer in Lodgepole reported 6 inches of snow.

Heavy Snow in DAWES, NEBRASKA
From 28-OCT-09 03:00:00 to 30-OCT-09 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported 12 inches of snow in Chadron at 7 pm.

Heavy Snow in KIMBALL, NEBRASKA
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 14 miles southwest of Kimball reported 8 inches of snow at 8 am.

Heavy Snow in BOX BUTTE, NEBRASKA
From 27-OCT-09 22:00:00 to 30-OCT-09 13:00:00 (MST-7)
Reported by: COOP Observer

A cooperative observer in Hemingford reported 6 inches of snow.

Heavy Snow in BOX BUTTE, NEBRASKA
From 28-OCT-09 03:00:00 to 30-OCT-09 12:00:00 (MST-7)
Reported by: Law Enforcement

Law enforcement reported 6 inches of snow in Alliance.

Heavy Snow in BOX BUTTE, NEBRASKA
From 28-OCT-09 03:00:00 to 30-OCT-09 13:00:00 (MST-7)
Reported by: Trained Spotter

A report of 12 inches of snow was received from a trained spotter 15 miles west of Hemingford.

Heavy Snow in BOX BUTTE, NEBRASKA
From 28-OCT-09 03:00:00 to 30-OCT-09 11:00:00 (MST-7)
Reported by: COOP Observer

A cooperative observer reported a storm total of 11 inches of snow 1 mile west northwest of Alliance.

Heavy Snow in CHEYENNE, NEBRASKA
From 28-OCT-09 12:00:00 to 30-OCT-09 13:00:00 (MST-7)
Reported by: COOP Observer

A cooperative observer reported 12 to 13 inches of snow in Dalton.

Heavy Snow in KIMBALL, NEBRASKA
From 27-OCT-09 19:00:00 to 30-OCT-09 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter 11 miles southeast of Kimball reported 14 inches of snow at 8 am.  Blowing snow also reported.

Heavy Snow in KIMBALL, NEBRASKA
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 19 miles southwest of Kimball reported 10 inches of snowfall along with blowing snow at 8 am.

Heavy Snow in KIMBALL, NEBRASKA
From 27-OCT-09 19:00:00 to 30-OCT-09 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located 7 miles north of Dix reported 12 inches of snow at 8 am along with blowing snow.

Heavy Snow in SCOTTS BLUFF, NEBRASKA
From 28-OCT-09 04:00:00 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 east of Scottsbluff reported 9 inches of snow at 9 am.

Heavy Snow in SCOTTS BLUFF, NEBRASKA
From 28-OCT-09 04:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

At 7 pm (10/29/2009) law enforcement reported 12 to 14 inches of snow in the Scottsbluff area.

Heavy Snow in KIMBALL, NEBRASKA
From 27-OCT-09 19:00:00 to 30-OCT-09 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located 6 miles north of Bushnell reported a total of 12 inches of snow at 8 am.

Heavy Snow in MORRILL, NEBRASKA
From 28-OCT-09 06:00:00 to 30-OCT-09 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter located in Bridgeport reported 7 to 8 inches of snow at 630 pm.

Heavy Snow in NORTH SIOUX, NEBRASKA
From 27-OCT-09 22:00:00 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 19 miles north of Harrison reported 6 to 8 inches of snow with some drifting at 9 am (10/29/09).

Heavy Snow in NORTH SIOUX, NEBRASKA
From 27-OCT-09 22:00:00 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 in Harrison reported 7 inches of snow at 9 am (10/29/2009) along with drifting snow.

Heavy Snow in NORTH SIOUX, NEBRASKA
From 27-OCT-09 22:00:00 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 4 miles northwest of Harrison reported 17 inches of snow at 7 pm (10/29/2009).

Heavy Snow in SOUTH SIOUX, NEBRASKA
From 27-OCT-09 22:00:00 to 30-OCT-09 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

NPS employee reported 10 to 15 inches of snow at Agate Fossil Beds.