Dense Fog Advisory Ends for Western Washington

The Dense Fog Advisory previously issued for various Western Washington areas has concluded as of 12:00 PM PDT, October 5, 2026. The National Weather Service (NWS) in Seattle, WA, confirmed that "The threat has ended."

Affected areas included San Juan County, the Foothills and Valleys of Thurston and Lewis Counties, the Downtown Everett / Marysville Area, Shoreline / Lynnwood / South Everett Area, the Eastside, the City of Seattle, Lowlands of Pierce and Southern King Counties, Olympia and Southern Puget Sound, Lowlands of Lewis and Southern Thurston Counties, the Middle Chehalis River Valley, Willapa and Black Hills, the Eastern Strait of Juan de Fuca, the Western Strait of Juan de Fuca, and Island County.

Drivers and residents in these areas should continue to exercise caution as conditions may still be clearing. No further action is required as the advisory has expired.