A persistent and concerning fire weather pattern is affecting parts of the Pacific Northwest this week, with Red Flag Warning conditions impacting the Oregon Coast Range, Columbia River Gorge, and adjacent fire weather zones in Oregon and Washington. Dry northeast winds and critically low relative humidity are creating dangerous ignition and fire spread conditions.
Current Fire Weather Warnings
Red Flag Warning conditions have been issued for several fire weather zones in Oregon and Washington, driven by a combination of:
- Northeast winds of 10–20 mph, with gusts up to 30 mph across most affected areas
- Columbia Gorge and Coast Range ridges experiencing east winds of 15–25 mph with gusts to 40 mph near west ends
- Relative humidity dropping as low as 15% in some zones
- Warm temperatures well above seasonal normals accelerating fuel dry-down
Affected areas include Fire Weather Zones along the Oregon Coast Range, Columbia Gorge corridors, and portions of Washington’s East Willapa Hills and Clark County lowlands. When winds exceed 20 mph and relative humidity drops below 20%, fire spread rates can become extreme, and spotting distances — where embers travel ahead of a fire — can extend to a mile or more.
What a Red Flag Warning Means
A Red Flag Warning is issued by the National Weather Service when weather conditions combine to produce an elevated risk of fire ignition and rapid spread. The warning does not mean a fire is burning — it means that if one starts, conditions exist for it to spread quickly and potentially threaten lives and property.
When a Red Flag Warning is in effect, residents and land users should:
- Avoid activities that could spark a fire — no burning, no grinding, limit equipment use in dry vegetation
- Ensure campfires are fully extinguished before leaving
- Have an evacuation plan ready and stay aware of conditions
- Report any smoke immediately by calling 9-1-1
Dry Thunderstorm Risk This Week
In addition to wind-driven fire weather, portions of Central Oregon are monitoring the risk of dry thunderstorms — storms that produce lightning but little or no rainfall reaching the ground. These events are particularly dangerous because lightning can ignite fires across wide areas simultaneously, stretching suppression resources thin. Red Flag Warnings specific to abundant lightning have been issued for Central Oregon fire weather zones, including OR700, on recent days.
Regional Fire Weather Forecast
The current pattern is expected to persist through mid-week, with only modest moderation anticipated. The combination of a blocking high pressure system, offshore flow, and historically low snowpack means that moisture recovery opportunities are limited. Fire weather specialists at the Northwest Coordination Center are monitoring closely and have issued an elevated 7-day significant fire potential outlook for much of the region.
Residents in the Columbia Gorge, coastal foothills, and eastern Oregon are urged to remain on heightened alert and take the current conditions seriously.