"This fire is notable for its large size—over 138,000 acres—and the sustained high level of resources committed, including nearly 1,100 personnel at its peak and an estimated cost exceeding $60 million. The rapid containment to 100% after several weeks of active behavior demonstrates effective suppression tactics in a challenging terrain."
The Kaiser Canyon wildfire, located in Okanogan County, Washington, was discovered on July 16, 2026 and is currently active under the jurisdiction of the BIA. The fire has grown to 138,293 acres with 100% containment as of September 7, 2026, after a period of active uphill runs, flanking, and short‑range spotting that peaked in early August. Personnel peaked at 1,089 on August 8, then gradually decreased as containment improved, with the last reported 14 personnel on September 7. The estimated cost has risen from $34.9 million on August 7 to $60.3 million by September 7, reflecting ongoing suppression efforts. The fire’s behavior transitioned from active and moderate to minimal and smoldering as containment progressed, with the last reports indicating minimal activity and creeping or backing behavior.
Official source description: 1 Miles S from Nespelem, WA
Minimal; Creeping; Backing; Smoldering
The fire is now minimal and smoldering with 100% containment; however, general wildfire safety precautions still apply, such as staying away from the fire perimeter and monitoring local advisories.
IRWIN ID: {B5597100-D6C9-49F9-BC74-6B8FC4432E92}
Discovered: Jul 16, 2026
Cause: Natural
Managing Agency: BIA
Est. Cost to Date: $60,300,000
Coordinates: 48.1168, -118.9587
Other wildfires that have recently been contained or dropped from official tracking in WA.
The Kaiser Canyon Fire has burned 138,293 acres as of September 7, 2026.
Yes, the Kaiser Canyon Fire is fully contained (100%).
The official cause has been listed as: Natural.
The Kaiser Canyon Fire is burning in Okanogan, WA.
Yes, as of the latest official update, the Kaiser Canyon Fire remains active.
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