Snow began late this afternoon on the eastern Cascade slopes. During the past few hours a band of light precipitation, associated with a switch to easterly flow aloft, has moved into the lowlands (see radar image above).
Winds aloft over Seattle...time increases to the left. Height in meters. Last two hours show easterly flow.
Several stations have reported snow...Paine Field in Everett, a commentor in Mukilteo, Whidbey Island Naval Air station, Gray Field near Tacoma, among others. Tacoma reported rain. Increasing NE winds are pushing out of the Fraser River Valley...with flow moving toward the NE Olympics.
