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: Oct 17, 2026 23:25 UTC. It may lag behind the report and is not an official alert.
The WEST FORK wildfire, located in Pierce County, Washington, was first discovered on August 23, 2026, and is caused by natural factors under the jurisdiction of the National Park Service. By the latest report on September 8, 2026, the fire had expanded to 310 acres with 16% containment, having grown from 349.4 acres on August 26 to 310 acres by early September. The incident has seen a slow but steady increase in acreage, with containment efforts beginning to take effect after September 7 when containment rose to 17%. Estimated costs have risen from $74,000 on August 28 to $573,000 by September 8, reflecting the ongoing resource commitment. Current fire behavior data is not provided, but the fire remains active with no reported containment beyond 16%.
Official source description: null Miles null from null,
Historical observations from incident reports, not a live forecast. Acreage and containment can decrease when agencies correct their estimates.
9
349 acres
310 acres
Latest available source report: Sep 8, 2026 22:20 UTC. This is the report date, not confirmation of current fire conditions.
Reported acreage decreased by 39 acres between the first and last available acreage measurements. Recorded containment rose by 16.0 percentage points, from 0.0% (Aug 26, 2026) to 16.0% (Sep 8, 2026), using the first and last reports with a known containment value.
| Report date (UTC) | Acres | Containment | Source |
|---|---|---|---|
| Aug 26, 2026 02:00 | 349 | 0.0% | NIFC |
| Aug 28, 2026 03:00 | 266 | 0.0% | NIFC |
| Aug 29, 2026 03:00 | 271 | 0.0% | NIFC |
| Aug 31, 2026 02:20 | 296 | 0.0% | NIFC |
| Sep 1, 2026 02:00 | 299 | 0.0% | NIFC |
| Sep 2, 2026 01:20 | 300 | 0.0% | NIFC |
| Sep 6, 2026 02:00 | 306 | 0.0% | NIFC |
| Sep 7, 2026 01:40 | 306 | 17.0% | NIFC |
| Sep 8, 2026 22:20 | 310 | 16.0% | NIFC |
| Report date (UTC) | Acres | Containment | Source |
|---|---|---|---|
| Aug 26, 2026 02:00 | 349 | 0.0% | NIFC |
| Aug 28, 2026 03:00 | 266 | 0.0% | NIFC |
| Aug 29, 2026 03:00 | 271 | 0.0% | NIFC |
| Aug 31, 2026 02:20 | 296 | 0.0% | NIFC |
| Sep 1, 2026 02:00 | 299 | 0.0% | NIFC |
| Sep 2, 2026 01:20 | 300 | 0.0% | NIFC |
| Sep 6, 2026 02:00 | 306 | 0.0% | NIFC |
| Sep 7, 2026 01:40 | 306 | 17.0% | NIFC |
| Sep 8, 2026 22:20 | 310 | 16.0% | NIFC |
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Verify evacuation orders, closures and access with the responsible fire agency, county emergency management or sheriff. A containment percentage, feed status or AQI reading does not establish that an area is safe to enter.
NIFC fire information and official resources βIRWIN ID: {F96D076D-EE37-4181-996C-9FF52D876942}
Discovered: Aug 23, 2026
Cause: Natural
Managing Agency: NPS
Est. Cost to Date: $573,000
Coordinates: 46.9469, -121.7171
Other wildfires no longer present in our filtered incident feed in WA.
The WEST FORK Fire has burned 310 acres as of September 8, 2026.
As of the latest update, the WEST FORK Fire is 16% contained.
The official cause has been listed as: Natural.
The WEST FORK Fire is burning in Pierce, WA.
The WEST FORK Fire is no longer in our filtered incident feed. This alone does not confirm extinguishment.
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