SEATTLE, Wash. – NOAA’s Winter 2025–2026 outlook, issued Thursday, Oct. 16, paints a stormy and snow-rich picture for the Pacific Northwest, with La Niña expected to dominate weather patterns into early spring. The Climate Prediction Center’s data shows above-normal precipitation and below-normal temperatures for Washington, Oregon, and Idaho — setting the stage for frequent mountain snow, flooding risks, and possible white Christmas scenes in higher elevations.
According to NOAA forecasters, La Niña winters tend to amplify the Pacific storm track, steering a steady stream of moisture from the Gulf of Alaska into the region. “This setup favors repeated systems bringing heavy rain to the coast and deep snow in the Cascades and northern Rockies,” meteorologists said. The wettest period is expected from mid-December through February, with snowpack potentially exceeding seasonal averages across the Cascades, Blues, and northern Sierra.
Lower elevations — including Portland, Seattle, and Spokane — could see occasional snow or mixed precipitation, especially around Christmas if cold air pools inland. Strong winds and coastal flooding may accompany powerful storms along I-5, while mountain passes like Snoqualmie and Santiam could face chain requirements and periodic closures during heavy snow events.
As the season progresses into March 2026, colder air may persist, keeping snow levels low and delaying early-spring melt. Residents are urged to clear drains, prepare for power outages, and stay alert for flood watches and avalanche advisories. Ski areas from Mount Hood to Stevens Pass are expected to benefit from one of the more robust snow seasons in several years.
