Dense Fog Advisory Issued for San Juan, Skagit, Snohomish, and Island Counties
A Dense Fog Advisory is in effect for San Juan, Island, Skagit, and Snohomish Counties until 12:00 PM PDT today, urging drivers to slow down and use headlights due to low visibility.
Drivers in San Juan County, Island County, the Lowlands of Western Skagit and Northwestern Snohomish Counties, and the Downtown Everett/Marysville Area are advised to slow down, use their headlights, and leave extra distance due to a Dense Fog Advisory issued by the National Weather Service (NWS) Seattle WA. The advisory is effective immediately, October 5, 2026, at 5:07 AM PDT, and will remain in effect until 12:00 PM PDT today.
Visibility in affected areas is reported to be one-half mile or less due to dense fog. These conditions could make driving hazardous. The NWS emphasizes the importance of caution while operating a vehicle during this period of reduced visibility.
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