Multiple large wildfires burning simultaneously across eastern Washington and into southern Idaho are generating significant smoke that is affecting air quality across the region. Residents in affected communities are being advised to limit outdoor exposure, particularly on days with poor ventilation.

Current Smoke Sources

The primary smoke producers in the Pacific Northwest this week include:

  • Tule Road Fire (24,090 acres, south of Yakima, 0% contained) — generating heavy smoke columns visible across the Yakima Valley
  • Kartar Fire (11,740 acres, Colville Reservation, 0% contained) — producing smoke in the Okanogan Highlands and north-central Washington
  • Upriver Fire (213 acres east of Spokane, 60% contained) — residual smoke in the Spokane metro area
  • Roza Fire (3,536 acres north of Selah, 90% contained) — smoke largely dispersed but may increase with weekend wind event

Additionally, fires in southern Idaho and Nevada are contributing to regional haze under certain wind patterns, and Canadian fire smoke from British Columbia has periodically influenced air quality in northern Washington.

Air Quality and Health Impacts

Eastern Washington communities — including Yakima, the Tri-Cities, Spokane, and Okanogan — have all experienced elevated smoke levels this week. Wildfire smoke contains fine particulate matter (PM2.5) that can penetrate deep into the lungs and is dangerous for sensitive populations including children, the elderly, pregnant women, and people with heart or lung conditions.

Residents should check current air quality at AirNow.gov or the Washington Smoke Blog (wasmoke.blogspot.com) for local conditions. The Fire and Smoke Map available at AirNow.gov provides real-time sensor readings across the region.

Protective Actions

  • When air quality is in the Unhealthy or Very Unhealthy range, remain indoors with windows closed
  • Use air purifiers with HEPA filters if available
  • Wear an N95 or KN95 respirator if you must go outside — cloth masks do not filter fine particles
  • Avoid strenuous outdoor exercise on smoky days
  • Keep car windows closed and set air conditioning to recirculate indoor air
  • Check on elderly neighbors, young children, and those with respiratory conditions

Weekend Forecast

A dry cold front arriving Saturday may temporarily improve smoke conditions in some areas as northwest winds increase and help ventilate the region. However, the same wind event is expected to drive active fire behavior — potentially generating new smoke from existing fires or causing new ignitions. By early next week, as high pressure rebuilds and winds become light, smoke may once again settle into valleys and communities across eastern Washington and Oregon.

Residents in the Yakima Valley, Okanogan Valley, and Spokane basin — which are all prone to temperature inversions that trap smoke near the surface — should be especially vigilant.