From the National Weather Service:
Strong winds will continue across portions of NW Oregon and SW Washington through early Wednesday morning. The front is expected to shift south and weaken early Wednesday bringing an end to the strong winds.
Wind advisory remains in effect until 10:00 p.m. this evening for the Willamette Valley and Lower Columbia region. Gusty south winds will persist through the evening with south winds 20 to 30 mph with occasional gusts around 40 mph.