# Pacific Northwest wildfire smoke air quality

> Live situation record from CLSTR: https://clstr.news/situations/pacific-northwest-wildfire-smoke-air-quality
> Updated: 2026-08-03T18:15:17.000Z. Sources: 5. Developments: 2.

In late July 2026 the Oregon Department of Environmental Quality extended an air‑quality advisory to cover additional eastern and central counties as smoke from multiple wildfires spread across the state. The advisory urged vulnerable populations to stay indoors, use filtration, and monitor conditions via state resources.

By early August, the Spokane Regional Clean Air Agency reported that power outages at its Airway Heights and Colbert monitoring stations—triggered by utility safety shutoffs during extreme fire‑weather—could leave gaps in air‑quality data just as smoke from eastern Washington fires was expected to intensify. Simultaneously, the Northwest Clean Air Agency issued an alert for Washington’s Whatcom and Skagit counties, warning of potentially unhealthy PM2.5 levels as offshore winds carried smoke westward.

## Timeline

### 2026-08-03: Spokane Clean Air Agency Reports Power Loss at Monitors During Wildfire Smoke

Spokane's air monitors may lose power during utility shutoffs amid wildfire smoke, while Whatcom and Skagit counties face unhealthy PM2.5 levels as smoke drifts westward.

2 sources. https://clstr.news/cluster/spokane-clean-air-agency-reports-power-loss-at-monitors-during-wildfire-smoke

### 2026-07-28: Oregon extends air quality advisory for eastern and central counties due to wildfire smoke

Oregon's Department of Environmental Quality extended an air‑quality advisory for eastern and central counties on July 29, 2026, citing wildfire smoke and urging residents to stay indoors and use protective air

3 sources. https://clstr.news/cluster/oregon-extends-air-quality-advisory-for-eastern-and-central-counties-due-to-wildfire-smoke

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Cite as: Pacific Northwest wildfire smoke air quality. CLSTR, https://clstr.news/situations/pacific-northwest-wildfire-smoke-air-quality