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).
Wednesday, September 13, 2017
Is there cleaner air in our future?
Area Forecast Discussion
National Weather Service Spokane WA
453 AM PDT Wed Sep 13 2017
A cold front passage tonight will bring gusty winds and cooler
temperatures for the rest of the work week. There is a chance of
showers for north Idaho Thursday and Friday. After a chilly start
on Saturday, anticipate dry and milder weather. The next chance of
rain looks to arrive Sunday night into Monday followed by breezy
and cooler conditions.
For the Wednesday into Friday communities that are near existing large fires will continue to deal with overnight smoke into their valleys. Areas such as Winthrop in the Methow valley to the South of the Diamond Creek fire should be aware of this given the forecast for winds out of the North through Thursday.
Western Washington should remain clear of the smoke.
Eastern Washington areas around Spokane and North should also be breathing cleaner air.
Walla Walla is seeing some smoke today from a Central Oregon fire that made a significant run yesterday.
The Methow, Chelan, Wenatchee, Kittitas and Yakima valleys are our areas of concern for the next few days.
There is good news on the horizon. The trend is for lower temperatures and higher relative humidities across the entire inland Northwest from Friday through the weekend, with a much anticipated, much needed chance of widespread precipitation to support the firefighting efforts by early next week!