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The Sinlahekin Fire, the largest wildfire to burn in Okanogan County this year, was 92% contained as of September 20, and Okanogan County Emergency Management has lifted every remaining evacuation order and warning tied to the blaze, according to incident updates from the Northwest Interagency Coordination Center and county fire trackers. Crews who spent nearly two months chasing the fire across more than 166,000 acres west of the Okanogan River are now on mop-up, patrol and suppression-repair work rather than active firefighting.
For families around Tonasket, Loomis, Conconully and the Sinlahekin Wildlife Area, the lifted notices mark the first time since late July that no one in the burn zone is under a Level 3 “go now” order. The fire ignited July 26 from lightning and grew fast through the Loomis and Tonasket areas, forcing evacuations that at points reached Ellisforde, Nighthawk and Oroville as smoke settled into the valley. At its peak the incident drew more than 1,700 assigned personnel, one of the largest single-fire mobilizations in the county’s recent history.
Containment climbed steadily through August and September as weather cooperated: the fire stood at 44% contained in early September before Okanogan County Emergency Management lifted Level 3 orders countywide, then continued rising past 76% by mid-month and to 92% by September 20, per the incident tracker maintained through the interagency coordination center. Some Level 2 “get set” and Level 1 “get ready” notices near Conconully persisted into early September for zones between Blue Lake and Lemanasky Road and along Cecil Creek Road to Fish Lake, before those, too, came off the map.
The fire’s toll on structures has been reported unevenly across incident updates — early August briefings counted two structures destroyed with no injuries or deaths, while a later FEMA operations briefing logged ten structures damaged or destroyed in the broader incident area. County officials have not published a final, reconciled damage count as of this week, and residents who lost outbuildings, fencing or equipment on the fire’s western flank are still working through insurance and county assessments.
What’s not over is the ground itself. Burned soil sheds rain instead of absorbing it, and the National Weather Service’s Spokane office has repeatedly flagged the Sinlahekin burn scar — along with other Okanogan County fire footprints — as vulnerable to flash flooding, ash flows and rockslides for at least the next two fire seasons. A flood watch covering the burn scar was issued in mid-September as a storm system moved into central Washington, underscoring that the fire’s end is not the end of the risk for people living downhill of the scar, particularly along drainages feeding toward the Okanogan River.
The Sinlahekin Fire was one of several large fires that pushed Governor Bob Ferguson to add Okanogan County to a statewide wildfire emergency proclamation, which in turn triggered a federal emergency declaration covering firefighting costs and temporary housing protections for displaced tenants. Those tenant protections — barring landlords from treating wildfire displacement as property abandonment or evicting tenants for sheltering displaced neighbors or their pets — run through September 30 in Okanogan County and the other affected counties. Washington’s broader push for a full federal major disaster declaration, which would open additional recovery funding, remains pending, with state officials facing a September 29 deadline to file that request with FEMA.
For a county where wildfire has become a fixture of the local labor calendar — orchard crews, fire crews and often the same seasonal workers moving between the two — the shift from active fire to mop-up matters beyond the fire line itself. Okanogan County’s apple harvest is underway on the same land the fire skirted, and growers and hourly crews alike have spent the summer working under smoke-filled skies before turning to picking. County officials have not yet said when land closures tied to the Sinlahekin footprint, including sections of the Sinlahekin Wildlife Area, will fully reopen to the public.
Okanogan County Emergency Management continues to post incident updates and burn-ban status through its website and the county’s NIXLE alert system. Residents near the burn scar are advised to keep an eye on National Weather Service flash-flood guidance for the area through the rest of the fall rains, even with the fire itself now largely subdued.
Sources: Northwest Interagency Coordination Center fire tracker, NWCC Sinlahekin Fire update, Sept. 20, 2026, Okanogan Highlands Firewatch incident page, KHQ, “Sinlahekin fire area faces flood risk as rain moves into Central Washington”, Office of Gov. Bob Ferguson.
