Canada sharing wildfire smoke wit the entire continent. Some areas it is aloft and others it is not. Western Washington and most of Western Oregon continue to have clean air. This may change a bit for Whatcom and Skagit Counties as smoke is coming in through the Fraiser River Valley, especially when offshore flow hits. This will switch back off by Wednesday night into Thursday and they should have clean air again. The Cascade crest really is the dividing line. Grants Pass is doing Grants Pass things and is always a bad spot every year. They always get wildfires and this year is no exception, so they have poor air quality. Eastern Washington and Oregon will have moderate to poor air quality. Valleys especially are getting poor air. Things will clear out to moderate later in the week. Spokane has really been hit bad the past few days.