National Weather Service:
A very significant winter storm will move into Western Washington early Wednesday morning, bringing as much as 6-14 inches of snow to the Southwest Interior and Central Washington Coast, and 5-10 inches to the metro areas of the Central Puget Sound region. Lowland snowfall will be somewhat less for the northern portions of Western Washington. Western Whatcom county will see strong winds, 20 to 30 mph with gusts as high as 50 mph. In addition to heavy lowland snow, this storm will produce heavy mountain snow and increasing avalanche danger over the Olympic and Cascade mountains.H/t to West Seattle Blog.