The Sinlahekin Fire, burning 12 miles west of Tonasket, Washington, has reached 44% containment as of August 18, 2026. The fire, ignited by lightning on July 26, now spans 153,843 acres and involves 1,731 personnel.
Fire activity will continue to smolder in pockets near Cecile Road, Chickadee Road, and North Fork Salmon Road, with occasional tree torching possible as humidity drops. No growth is anticipated in the Lemanasky area, but residents should stay prepared to evacuate if conditions change, with go-bags and evacuation plans in place.
The Washington State Department of Natural Resources urges drivers to exercise caution near the fire area, avoid parking on dry vegetation, and follow designated routes. A virtual community meeting is scheduled for Sunday, August 16, at 7 p.m. on Facebook Live.