Sinlahekin
Okanogan, WA · Undetermined
This fire is no longer active. It burned 166,007 acres in Okanogan before dropping off the national incident feed.
166,007
Acres Burned
107
Days Burning
Jul 26, 2026
Discovered
3w ago
Last Update
Growth
No growth in the last day, containment at 100%Public Lands Nearby
10 public land units within 75 miles
Okanogan National Forest
GoNational Forest / WA
29.6 mi
W
Pasayten Wilderness
GoWilderness / WA
38.1 mi
W
Lake Chelan-Sawtooth Wilderness
Check firstWilderness / WA
44.8 mi
SW
Lake Chelan National Recreation Area
AvoidRecreation Area / WA
51.4 mi
SW
Farm Service Agency Interest Of Wa
GoWildlife Refuge / WA
59.2 mi
S
Ross Lake National Recreation Area
GoRecreation Area / WA
64.4 mi
W
Stephen Mather Wilderness Area
GoWilderness / WA
66.2 mi
W
North Cascades National ParkClosures in effect
ClosedNational Park / WA
69 mi
W
Glacier Peak Wilderness
Check firstWilderness / WA
70 mi
SW
Lake Roosevelt National Recreation AreaClosures in effect
ClosedRecreation Area / WA
71.4 mi
SE
Official Park Alerts
Closures and dangers published by the National Park Service
Park Closure / Lake Roosevelt National Recreation Area
Hawk Creek Campground Reservations Closed Until Further Notice
Campground reservations remain closed until further evaluation. The Hawk Creek Area (road, boat launch, and waterway) is now open to the public after a road improvement and stabilization project.
Park Closure / Lake Roosevelt National Recreation Area
Fort Spokane boat launch & day use open; Campground open with some closures
Fort Spokane Campground has re-opened to the public with minimal closures as of 8/14/2026. Sites 39, 40, 41, 50, and walk-in sites 64-68 will remain closed for the foreseeable future due to fire damage and hazard trees. Caution tape and clo...
Park Closure / North Cascades National Park
Cascade River Road Closed for the Winter Season
Cascade River Road is closed at milepost 21 (Johnson Cabin) two miles before the trailhead. Cascade River Road usually opens in mid-summer depending on snow and road damage. Do not block gate. Foot and bicycle traffic is permitted beyond th...
Official noticePark Closure / North Cascades National Park
Hozomeen Gate Remains Closed
Until further notice, the gate at Hozomeen will remain closed; vehicle and foot traffic across the US/Canada border is prohibited. Visitors must enter through a designated port of entry.
Official noticePark Closure / North Cascades National Park
Fire Closures - Trail, Area, and Camp Closures
For closures due to fire activity visit the Fire Closures page, including trail, area, and camp closures for current and post fire conditions.
Official noticeSituation Updates
Posted by the incident management team on InciWeb, plus changes read from NIFC interagency perimeter data
SINLAHEKIN update: 166,007 acres, 100% contained
Perimeter dataPer interagency perimeter data, the SINLAHEKIN containment moved from 99% to 100%.
IRWINSINLAHEKIN update: 166,007 acres, 99% contained
Perimeter dataPer interagency perimeter data, the SINLAHEKIN containment moved from 98% to 99%.
IRWINSINLAHEKIN update: 166,007 acres, 98% contained
Perimeter dataPer interagency perimeter data, the SINLAHEKIN containment moved from 96% to 98%.
IRWINSINLAHEKIN update: 166,007 acres, 96% contained
Perimeter dataPer interagency perimeter data, the SINLAHEKIN containment moved from 94% to 96%.
IRWINSINLAHEKIN update: 166,007 acres, 94% contained
Perimeter dataPer interagency perimeter data, the SINLAHEKIN containment moved from 93% to 94%.
IRWINSinlahekin Fire Daily Update 09-25-2026
Incident teamSinlahekin Fire Update September 25, 2026 Daily Update Quick Facts Size: 166,007 acres Start Date: July 26, 2026 Cause: Lightning/Natural Containment: 93% Personnel: 521 Location: 12 Miles W of Tonasket, WA Key Message and Operational Updates Today an incoming cold front is expected to bring colder temperatures, rain, and possible thunderstorms with wetting rain and wind gusts up to 30mph. Heavy r...
InciWebSinlahekin Fire Daily Update 09-24-2026
Incident teamSinlahekin Fire Update September 24, 2026 Daily Update Quick Facts Size: 166,007 acres Start Date: July 26, 2026 Cause: Lightning/Natural Containment: 93% Personnel: 439 Location: 12 Miles W of Tonasket, WA Key Message: An incoming cold front is expected to bring colder temperatures and a chance of afternoon thunderstorms on Friday, with significant wind and rain possible. These conditions could c...
InciWebSINLAHEKIN update: 166,007 acres, 93% contained
Perimeter dataPer interagency perimeter data, the SINLAHEKIN containment moved from 92% to 93%.
IRWINSINLAHEKIN update: 166,007 acres, 92% contained
Perimeter dataPer interagency perimeter data, the SINLAHEKIN grew 2 acres to 166,007.
IRWINSinlahekin Fire Daily Update 09-22-2026
Incident teamSinlahekin Fire Update September 22, 2026 - 8:00 am Quick Facts Size: 166,000 a cres Start Date: July 26, 2026 Personnel: 477 Containment: 92% Suppression Repair Completion : 49.8% Please continue to respect all current road and forest closures. Increased public access into active work areas can delay suppression-repair operations and create safety concerns for both the public and fire personnel. ...
InciWebSinlahekin Fire Daily Update 09-21-2026
Incident teamSinlahekin Fire Update September 21, 2026 - 8:00 am Quick Facts Size: 166,000 a cres Personnel: 578 Containment: 92% Suppression Repair Completion : 49.5% Please respect all current road and forest closures. Reopening access remains a priority as conditions allow. Fire and land managers continue evaluating suppression-repair progress, remaining hazards, and firefighter safety before additional are...
InciWebSinlahekin Fire Daily Update 09-20-2026
Incident teamSinlahekin Fire Update September 20, 2026 - 8:00 am Quick Facts Size: 166,000 a cres Start Date: July 26, 2026 Personnel: 589 Containment: 92% Suppression Repair Completion : 49.9% Suppression Repair Progress: Fire crews continue advancing suppression-repair work throughout the incident area, focusing on stabilizing disturbed ground, repairing roads and firelines, and restoring drainage affected b...
InciWebSINLAHEKIN update: 166,005 acres, 92% contained
Perimeter dataPer interagency perimeter data, the SINLAHEKIN was remapped 7 acres lower to 166,005 and containment moved from 84% to 92%.
IRWINSinlahekin Fire Daily Update 09-19-2026
Incident teamSinlahekin Fire Update September 19, 2026 - 8:00 am Quick Facts Size: 166,000 a cres Start Date: July 26, 2026 Personnel: 594 Containment: 84% Suppression Repair Completion : 47.0% Suppression Repair Progress: Crews continue stabilizing disturbed ground, repairing roads and firelines, and improving drainage features impacted by suppression activity. Fuel‑reduction and debris‑management projects ar...
InciWebSinlahekin Fire Daily Update 09-18-2026
Incident teamSinlahekin Fire Update September 18, 2026 - 8:00 am Quick Facts Size: 166,000 a cres Start Date: July 26, 2026 Personnel: 604 Containment: 84% Suppression Repair Completion : 44.6% Suppression Repair Progress: Suppression repair remains the primary operational focus on the Sinlahekin Fire. Crews are working across the western and northwestern portions of the incident to repair roads and firelines,...
InciWebTimeline
107 days since discovery
Other Fires in Washington
5 other active fires
Washington wildfire map: every fire burning in the state and the past year's fires. Planning a trip? Washington national parks guide.
Data Sources
Fire data from NIFC Wildland Fire Interagency Geospatial Services (WFIGS) via IRWIN. Satellite hotspots from NASA FIRMS VIIRS. Situation updates are either posted by the incident management team on InciWeb or read by us from WFIGS perimeter data, and each one says which. Air quality data from EPA AirNow. Public lands boundaries from USGS PAD-US 4.0.
IRWIN ID: 78d35d3b-f791-4961-ae36-c6d1a4dff5a0
Important
More Than Just Parks aggregates third-party data from EPA AirNow, NOAA, NASA FIRMS, and NIFC/WFIGS. Readings can be delayed, estimated, incomplete, or wrong, and conditions on the ground change quickly. This tool is for general information only and is not a substitute for official air quality alerts, fire and evacuation orders, land manager closures, or emergency services. Verify with the managing agency and local authorities before making any travel, health, or safety decision. We make no warranty as to accuracy and accept no liability for decisions made using this information. This is not an emergency or evacuation tool. If you are near a fire, follow official evacuation orders and call 911. Terms of Service.