Weather Warnings for Washington
| Alerts Updated: December 30, 2025, 6:00 pm UTC |
Air Stagnation Advisory issued December 30 at 9:05AM PST until January 1 at 12:00PM PST by NWS Pendleton ORSummary: * WHAT...Stagnant conditions will have the potential to trap pollutants near the ground and deteriorate air quality. * WHERE...Foothills of the Blue Mountains of Oregon and Washington, Lower Columbia Basin of Oregon and Washington, North Central Oregon, Central Oregon, Kittitas Valley, and Yakima Valley. * WHEN...Until noon PST Thursday. * IMPACTS...Periods of air stagnation can lead to the buildup of pollutants near the surface, potentially leading to poor air quality.Severity: Moderate Effective: December 30, 2025, 9:05 am Expires: December 30, 2025, 11:00 pm Area: Lower Columbia Basin of Oregon; Foothills of the Northern Blue Mountains of Oregon; Foothills of the Southern Blue Mountains of Oregon; North Central Oregon; Central Oregon; Kittitas Valley; Yakima Valley; Lower Columbia Basin of Washington; Foothills of the Blue Mountains of Washington |
Air Stagnation Advisory issued December 29 at 11:45AM PST until January 1 at 12:00PM PST by NWS Spokane WASummary: * WHAT...Stagnant conditions will have potential to trap pollutants near the ground with deteriorated air quality. * WHERE...Portions of North and North Central Idaho and North Central, Northeast, and Southeast Washington. * WHEN...Until noon PST Thursday. * IMPACTS...Periods of air stagnation can lead to the buildup of pollutants near the surface.Severity: Moderate Effective: December 29, 2025, 11:45 am Expires: January 1, 2026, 12:00 pm Area: Central Panhandle Mountains; Lewiston Area; Lewis and Southern Nez Perce Counties; Lower Garfield and Asotin Counties; Spokane Area; Northeast Mountains; Okanogan Highlands; Wenatchee Area; Okanogan Valley; Central Chelan County; Western Chelan County; Western Okanogan County |
