Feed checks and source-record updates do not necessarily mean fire conditions changed. Figures below reflect the last recorded incident report.
The last recorded incident change is more than 14 days old or undated. Historical fire behavior and summaries below are not confirmation of current conditions.
Automated summary generated: Aug 9, 2026 21:01 UTC. It may lag behind the report and is not an official alert.
The Tucannon Mutual Aid wildfire is located in Columbia County, Washington, approximately 46.489371012445Β° N, 117.94958888912Β° W. The fire is reported to be 8,069 acres in size and is 100% contained. The fire was discovered on June 16, 2026, and is believed to be caused by human activity. The fire behavior is currently minimal, creeping, and smoldering. The fire is being managed by an unknown jurisdictional agency.
Official source description: 8 Miles E from Dayton, WA
Minimal; Creeping; Smoldering
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NIFC fire information and official resources βIRWIN ID: {593B002B-D532-4CCC-A575-BA059333328F}
Discovered: Jun 16, 2026
Cause: Human
Est. Cost to Date: $825,000
Coordinates: 46.4894, -117.9496
Other wildfires no longer present in our filtered incident feed in WA.
The Tucannon Mutual Aid Fire has burned 8,069 acres as of August 7, 2026.
Yes, the Tucannon Mutual Aid Fire is fully contained (100%).
The official cause has been listed as: Human.
The Tucannon Mutual Aid Fire is burning in Columbia, WA.
The Tucannon Mutual Aid Fire is no longer in our filtered incident feed. This alone does not confirm extinguishment.
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