Winter Weather Advisory issued January 1 at 5:11AM PST until January 1 at 4:00PM PST by NWS Pendleton OR
Issue date: 2026-01-01T13:11+00:00
* WHAT...Freezing rain expected. Total ice accumulations around a light glaze. * WHERE...Kittitas Valley, Yakima Valley, Lower Columbia Basin of Washington, and Foothills of the Blue Mountains of Washington. * WHEN...From 10 AM this morning to 4 PM PST this afternoon. * IMPACTS...Very slippery sidewalks, roads and bridges are possible. The hazardous conditions could impact the Thursday evening commute. Slippery conditions could occur on portions of I-82, I-90, SR 14 and SR 125.
Freezing Fog Advisory issued January 1 at 12:41AM PST until January 1 at 12:00PM PST by NWS Pendleton OR
Issue date: 2026-01-01T08:41+00:00
* WHAT...For the Freezing Fog Advisory, visibility one quarter to one half mile in freezing fog. For the Air Stagnation Advisory, poor air quality will continue. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. * WHERE...Lower Columbia Basin of Washington. * WHEN...Until noon PST today. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Low visibility could make driving conditions hazardous. Roadways could become slippery and sidewalks may be slick in spots.
Air Stagnation Advisory issued January 1 at 12:41AM PST until January 1 at 12:00PM PST by NWS Pendleton OR
Issue date: 2026-01-01T08:41+00:00
* WHAT...For the Freezing Fog Advisory, visibility one quarter to one half mile in freezing fog. For the Air Stagnation Advisory, poor air quality will continue. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants. * WHERE...Lower Columbia Basin of Washington. * WHEN...Until noon PST today. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Low visibility could make driving conditions hazardous. Roadways could become slippery and sidewalks may be slick in spots.
Air Stagnation Advisory issued December 31 at 2:52PM PST until January 1 at 12:00PM PST by NWS Pendleton OR
Issue date: 2025-12-31T22:52+00:00
* 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.
