A "Dense Fog Advisory" has been issued by the National Weather Service for much of Oregon, along with small sections of Idaho. "Air Stagnation Advisories" have also been issued across Oregon ...

On Monday at 9:42 a.m. a dense fog advisory was issued by the National Weather Service in effect until 1 p.m. for Foothills of the Northern Blue Mountains of Oregon, Foothills of the Southern Blue ...

A weather alert was issued by the National Weather Service on Monday at 6:44 a.m. for fog until 10 a.m. for Lower Columbia River, Tualatin Valley, West Hills and Chehalem Mountains, Inner Portland ...

The National Weather Service is warning of air stagnation and dense fog in the Willamette Valley. Advisories have been issued for both events. Dense fog is expected to persist until 1 p.m. Thursday in ...

The area of the Northwest Oregon National Weather Service Dense Fog Advisory the morning of Jan. 16, 2025. Bluish-gray = dense fog advisory, pink = small craft advisory, cyan = beach hazards ...