SPR's Doug Nadvornick reports.
Cooler temperatures and a bit more humidity are expected to help Northwest firefighters for the next day or two. But the winds from the west that are moderating temperatures may also help spread flames and embers from existing fires.
Fire officials are making slow progress on some of the biggest fires. For example, the Chuweah Creek fire that has been threatening the town of Nespelem has spread to about 34,000 acres. Fire crews say they have it about 20% contained.
Others, such as the Burbank fire, which has been burning in the Yakima area for more than a week, are fully or nearly fully contained.