A large and vigorous winter storm brought heavy snow to the mountains and valleys of eastern Washington and the eastern Columbia Basin. In addition to widespread mountain accumulations of 12 to 14 inches and valley and eastern basin accumulations of 3 to 6 inches, windy conditions after the snow ended produced areas of blowing snow closing roads and crippling traffic in near Blizzard conditions on the Washington Palouse and the Camas Prairie area of north Idaho.

Heavy Snow in EAST SLOPES NORTHERN CASCADES, WASHINGTON
From 27-DEC-16 03:00:00 to 28-DEC-16 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Holden Village recorded 17.1 inches of new snow which fell through the day December 27th and continued until the morning of December 28th.

Heavy Snow in EAST SLOPES NORTHERN CASCADES, WASHINGTON
From 27-DEC-16 03:00:00 to 28-DEC-16 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The Stehekin Village COOP observer recorded 28 inches of new snow which fell through the day December 27th and continued until the morning of December 28th.

Heavy Snow in EAST SLOPES NORTHERN CASCADES, WASHINGTON
From 27-DEC-16 03:00:00 to 28-DEC-16 08:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

CoCoRaHs observers in Plain and Leavenworth measured 6 inches of snow which fell through December 27th and ended the morning of December 28th.

Heavy Snow in EAST SLOPES NORTHERN CASCADES, WASHINGTON
From 27-DEC-16 03:00:00 to 28-DEC-16 08:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A CoCoRaHs observer in Peshastin measured 7 inches of snow which fell through December 27th and ended the morning of December 28th.

Heavy Snow in WASHINGTON PALOUSE, WASHINGTON
From 27-DEC-16 03:00:00 to 27-DEC-16 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Four inches of snow fell in the early morning hours in Colton.

Heavy Snow in WASHINGTON PALOUSE, WASHINGTON
From 27-DEC-16 03:00:00 to 27-DEC-16 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Four inches of snow fell in the late night and early morning hours in Albion.

Winter Storm in WASHINGTON PALOUSE, WASHINGTON
From 27-DEC-16 03:00:00 to 27-DEC-16 17:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

After 3 to 4 inches of snow accumulated overnight across Whitman County, windy conditions developed during the day on 12/27 and forced the closure of several roads on the exposed terrain of the Washington Palouse due to blowing and drifting snow.

Heavy Snow in UPPER COLUMBIA BASIN, WASHINGTON
From 27-DEC-16 03:00:00 to 27-DEC-16 11:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Five inches of new snow accumulation was reported from Almira.

Heavy Snow in UPPER COLUMBIA BASIN, WASHINGTON
From 27-DEC-16 03:00:00 to 27-DEC-16 11:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

In the Davenport area 5 inches of accumulation was reported from 14 miles north of Davenport and 4 inches fell 11 miles north of the town.

Heavy Snow in UPPER COLUMBIA BASIN, WASHINGTON
From 27-DEC-16 03:00:00 to 27-DEC-16 11:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Five inches of new snow accumulation was reported from Almira.

Heavy Snow in UPPER COLUMBIA BASIN, WASHINGTON
From 27-DEC-16 03:00:00 to 27-DEC-16 11:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Six inches of new snow accumulation was reported at Lincoln.

Heavy Snow in SPOKANE AREA, WASHINGTON
From 27-DEC-16 03:00:00 to 27-DEC-16 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several reports of 4 inches of snow accumulation were received from spotters just south of the city of Spokane, with 1 to 3 inches in the city itself and the areas just to the west of Spokane.

Heavy Snow in SPOKANE AREA, WASHINGTON
From 27-DEC-16 03:00:00 to 27-DEC-16 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Four inches of snow accumulation was reported in the town of Opportunity.

Heavy Snow in SPOKANE AREA, WASHINGTON
From 27-DEC-16 03:00:00 to 27-DEC-16 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Four inches of snow accumulation was reported in the town of Mead.

Heavy Snow in NORTHEAST MOUNTAINS, WASHINGTON
From 27-DEC-16 00:00:00 to 27-DEC-16 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Seven inches of snow was reported at Metaline Falls.

Heavy Snow in NORTHEAST MOUNTAINS, WASHINGTON
From 27-DEC-16 00:00:00 to 27-DEC-16 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter in Northport reported 4.4 inches of snow accumulation.

Heavy Snow in NORTHEAST MOUNTAINS, WASHINGTON
From 27-DEC-16 00:00:00 to 27-DEC-16 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Seven inches of new snow accumulation was reported at Boundary Dam.

Heavy Snow in NORTHEAST MOUNTAINS, WASHINGTON
From 27-DEC-16 00:00:00 to 27-DEC-16 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter in Clayton reported 4.5 inches of new snow accumulation.

Heavy Snow in NORTHEAST MOUNTAINS, WASHINGTON
From 27-DEC-16 00:00:00 to 27-DEC-16 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter in Evans reported 4 inches of new snow accumulation.