Fire weather conditions across the Pacific Northwest are among the most extreme on record for this time of year, with the National Weather Service issuing a rare "Particularly Dangerous Situation" (PDS) Red Flag Warning for portions of the region and federal forecasters projecting above-normal fire potential through at least September 2026.

Particularly Dangerous Situation Warning

The NWS issued a PDS Red Flag Warning — the most urgent tier of fire weather alert — for central and eastern Oregon, citing a combination of critically low relative humidity, bone-dry fuels, and damaging wind gusts reaching 40 to 50 mph. PDS designations are exceptionally rare in the Pacific Northwest; the last comparable event was in September 2020.

The warning came as a dry cold front swept through the region, producing powerful offshore winds that rapidly lowered humidity and dramatically increased fire spread potential. Red flag warnings also remain in effect for portions of eastern Washington, where dozens of large fires are already burning.

Fuel Conditions Critically Dry

The underlying fuel conditions feeding this year's historic fire season are rooted in a multiyear drought that has left vegetation across Oregon, Washington, and Idaho in critically stressed condition. Key factors include:

  • Persistent drought: Much of eastern Oregon and Washington remains in severe to exceptional drought, with several areas in the most extreme drought category
  • Record-low fuel moisture: Live and dead fuel moisture levels across southwest Idaho and eastern Oregon are at or near the lowest ever recorded for this time of year
  • Above-average fine fuel crop: A wet spring produced lush grass growth that has since cured into a continuous, highly flammable fine-fuel layer across millions of acres
  • Drought-stressed vegetation: Localized shrub mortality and widespread drought stress have created patches of extremely dry ladder fuels that can rapidly carry fire into forest canopies

Outlook: Above-Normal Fire Potential Through September

The August 1 National Significant Wildland Fire Potential Outlook from NIFC projects above-normal fire potential for the entire Pacific Northwest coast westward, extending through central Utah, western Wyoming, and northwest Montana — a vast swath of the Western U.S. The outlook projects this above-normal potential to persist through at least September, with no significant relief on the forecast horizon.

Above-normal temperatures are expected to continue driving the fire environment, with maximum temperatures regularly reaching well above seasonal norms across the fire-prone areas of the intermountain region.

What to Watch

Fire managers and meteorologists are closely watching for additional rounds of offshore wind events, any dry lightning activity, and the potential for erratic fire behavior any time winds increase. The combination of abundant fuels, entrenched drought, and periodic wind events creates conditions where new ignitions can grow to large fires within hours.

Residents across the Pacific Northwest are urged to avoid all outdoor burning, be extremely cautious with equipment that can generate sparks, and have a go-plan ready in case evacuation orders are issued in their area. Follow the NWS fire weather forecasts at weather.gov for the latest red flag and fire weather watch information.