The Pacific Northwest faces an extended period of above-normal wildfire danger stretching well into winter, according to the National Interagency Fire Center's September-December outlook — a grim forecast driven by a record-strength El Nino pattern, drought persistence, and critically dry fuels east of the Cascade Mountains.

What the Outlook Says

NIFC's Predictive Services division expects above-normal large fire potential to persist through September across most of the Northwest, far Northern California, and central and southern Idaho. While normal risk conditions are expected to return to many parts of the country in October, the Pacific Northwest faces a slower transition out of peak fire season.

Key factors driving the forecast include:

  • Persistent drought across the Northwest, expected to worsen through October-December
  • Below-normal precipitation forecast for the region from October through December
  • Near-to-above normal temperatures expected through the fall and winter months
  • Fuels east of the Cascades described as "critically dry and fully cured"

El Nino's Role

A powerful El Nino weather pattern is strengthening rapidly based on elevated equatorial Pacific Ocean surface temperatures. The Climate Prediction Center gives more than a 95% probability of a "very strong El Nino" by November that could persist through winter. El Nino typically brings drier-than-normal conditions to the Pacific Northwest and wetter conditions to the southern United States — the opposite of what fire managers would hope for heading into fall.

Previous years with similar strong El Nino transitions have seen elevated likelihood of at least one significant east-wind event in September, which can rapidly spread fires when combined with lightning or human ignitions.

East Cascades on Alert

NIFC's outlook specifically highlights lands east of the Cascade Range as a high concern area, where fuels remain critically dry following one of the driest summers on record. Warm temperatures are most likely in this zone, with periodic marine pushes providing only brief cooling relief on the west side of the mountains.

"The persistent warmth suggests a slower transition into cool-season conditions, leaving cured fuels — particularly in drought-affected areas — exposed later into the fall," the NIFC outlook states.

What This Means for Residents

Fire managers are urging residents and recreationists throughout the Pacific Northwest not to let their guard down simply because summer is ending. Human-caused fires remain a serious threat as long as fuels stay dry, and the forecast window for elevated fire danger extends through the holiday season.

  • Avoid burning debris until fire danger decreases and local restrictions are lifted
  • Check fire restrictions before recreating on public lands at fs.usda.gov or blm.gov
  • Create defensible space around your home if you live in a wildland-urban interface area
  • Sign up for local emergency alerts through your county emergency management office