Note: Some users might notice intermittent discrepancies in colors shown on the map of air quality monitors above, and those reported on the Department of Ecology's official page. This is because Ecology believes their method of calculating the air quality category (i.e. “Good”, “Moderate”, Unhealthy” etc) is more protective of public health in Washington. If in doubt as to which better represents public health risk, use the more stringent of the two (i.e. the map showing worse air quality).
Monday, July 24, 2017
Expect smoke in eastern Washington, western WA just about escapes a dose
While strong winds blow away the smoke, they have their own agenda:
Some forecast models suggest Canadian wildfire smoke will get caught up in the northerly winds tonight. Winds are expected to shift to the east briefly, bringing this smoke perilously close to the Cascade crest. But this flow pattern is unlikely to persist for long enough to push smoke into western WA. Neither are they likely to blow smoke from fires in western Montana, all the way to far eastern Washington.
Tuesday should see a lighter winds so smoke impacts will be mostly near the fires. Expect Good air statewide with a few areas of Moderate overnight into Wednesday.