A moist cold front transited the region from northwest to southeast during the day of December 15th. This front lifted a plume of Pacific moisture directed into eastern Washington and north Idaho into an area of persistent snow bringing heavy accumulations to the Palouse region and the Spokane area. The peripheral areas of this heavy snow area to the west over the central Columbia Basin and north in the northeast Washington mountains generally received 1 to 3 inches of snow from this storm.

Heavy Snow in WASHINGTON PALOUSE, WASHINGTON
From 15-DEC-17 12:00:00 to 16-DEC-17 01:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A weather spotter near Malden reported 5.0 inches of new snow accumulation.

Heavy Snow in WASHINGTON PALOUSE, WASHINGTON
From 15-DEC-17 12:00:00 to 16-DEC-17 01:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A member of the public near Pullman reported 4.0 inches of new snow accumulation.

Heavy Snow in WASHINGTON PALOUSE, WASHINGTON
From 15-DEC-17 12:00:00 to 16-DEC-17 01:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer at Rosalia reported 8.0 inches of new snow accumulation.

Heavy Snow in SPOKANE AREA, WASHINGTON
From 15-DEC-17 10:00:00 to 15-DEC-17 12:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The observer at the Spokane International Airport recorded 7.1 inches of new snow accumulation.

Heavy Snow in SPOKANE AREA, WASHINGTON
From 15-DEC-17 10:00:00 to 15-DEC-17 12:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A weather spotter on Spokane's South Hill reported 6.0 inches of new snow accumulation.

Heavy Snow in SPOKANE AREA, WASHINGTON
From 15-DEC-17 10:00:00 to 15-DEC-17 12:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A member of the public 2 miles north of Spokane reported 4.0 inches of new snow accumulation.

Heavy Snow in SPOKANE AREA, WASHINGTON
From 15-DEC-17 10:00:00 to 15-DEC-17 12:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A member of the public in Cheney reported 4.0 inches of new snow accumulation.

Heavy Snow in SPOKANE AREA, WASHINGTON
From 15-DEC-17 10:00:00 to 15-DEC-17 12:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A member of the public in Liberty Lake reported 4.0 inches of new snow accumulation.

Heavy Snow in SPOKANE AREA, WASHINGTON
From 15-DEC-17 10:00:00 to 15-DEC-17 12:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A member of the public near Mead reported 4.5 inches of new snow accumulation.

Heavy Snow in WASHINGTON PALOUSE, WASHINGTON
From 15-DEC-17 12:00:00 to 16-DEC-17 01:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

An observer in Thornton reported 6.5 inches of new snow accumulation.

Heavy Snow in WASHINGTON PALOUSE, WASHINGTON
From 15-DEC-17 12:00:00 to 16-DEC-17 01:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A weather spotter near Garfield reported 4.0 inches of new snow accumulation.