Wildfires were hurting air quality Monday in much of Washington, as forecasters issued a stagnant-weather advisory to last at least through Wednesday afternoon.
Smoke from the blazes drifted west over the Cascade Range but had not yet settled close to the ground, the National Weather Service said. That could change by today, when some smoke is expected in the western foothills of the Cascades.
An inversion moved into the Wenatchee area east of the mountains on Sunday evening, holding smoke in the region where 1,700 people were fighting a complex of wildfires burning on about 51 square miles.
Hundreds of people have been evacuated as the fires were helped by unseasonably warm temperatures. The area is extremely dry, and conditions are right for rapid growth of existing fires and new fire starts, fire managers said.
All of the big fires in the state started during a Sept. 8 lightning storm. About 3,700 firefighters, including some from Canada, were battling the fires.
The Wenatchee complex of wildfires was about 17 percent contained. No homes had burned, but nearly 800 houses and other structures were threatened.
Another cluster of fires known as the Yakima complex continued to burn in Yakima and Kittitas counties, south and west of the Wenatchee complex. The Yakima complex covered 1,150 acres and was 10 percent contained while threatening about 400 homes. It had so far cost $4.1 million to fight.
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