A moist warm front overrunning an established pool of cold air over Eastern Washington resulted in several hours of light to moderate snowfall on the 10th of February.  The heaviest snow accumulations were found in the East Slopes of the Washington Cascades which received between seven to fourteen inches.  The remainder of the region saw snowfall amounts generally under two inches.  The exception was along a narrow corridor across Northeastern Washington, generally south of Pend Oreille River and north of the Palouse, extending east to west from Lincoln County to the Idaho Montana border.  A nearly stationary boundary coupled with the rising terrain resulted in several hours of moderate snow which accumulated between three and four inches over a span of just a few hours.

Winter Weather in OKANOGAN HIGHLANDS, WASHINGTON
From 10-FEB-14 07:00:00 to 10-FEB-14 12:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall amounts generally ranged from one to three inches.  An isolated report of four inches was received from the town of Wauconda.

Winter Weather in UPPER COLUMBIA BASIN, WASHINGTON
From 10-FEB-14 08:00:00 to 10-FEB-14 13:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall amounts of two to four inches were observed across Lincoln County leading to slick travel along the Highway 2 corridor.  Snowfall amounts were generally near an inch in Adams County.

Winter Weather in OKANOGAN VALLEY, WASHINGTON
From 10-FEB-14 07:00:00 to 10-FEB-14 11:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall amounts range between one and three inches.

Winter Weather in NORTHEAST MOUNTAINS, WASHINGTON
From 10-FEB-14 09:00:00 to 10-FEB-14 14:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall amounts greatly ranged across the zone.  The northern half of the zone picked up between one and two inches while three to locally four fell across the southern half.

Winter Weather in WATERVILLE PLATEAU, WASHINGTON
From 10-FEB-14 07:00:00 to 10-FEB-14 11:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall amounts ranged between two and four inches.

Heavy Snow in EAST SLOPES NORTHERN CASCADES, WASHINGTON
From 10-FEB-14 05:00:00 to 10-FEB-14 22:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Light to moderate snow fell across the East Slopes during the morning hours of the 10th ahead of a strong cold front.  Behind the cold front, an unstable air mass and strong westerly flow resulted in numerous convective snow showers along and east of the Cascade Crest.  The morning snow brought between two and four inches then an additional four to eight inches fell at some locations with the post frontal showers.  Locations near the Cascade Crest including Mazama, Holden Village, and Stevens Pass received between nine and thirteen inches of snow from the event.  Further east away from the crest, snowfall amounts were generally in the six to nine inch range.

Winter Weather in SPOKANE AREA, WASHINGTON
From 10-FEB-14 00:00:00 to 10-FEB-14 14:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

The heaviest snow started around 0800 PST with storm total amounts in the three to four inch range across the Spokane Area.