Dense Fog Advisory issued December 13 at 7:54AM PST until December 13 at 9:00AM PST by NWS

…DENSE FOG ADVISORY NOW IN EFFECT UNTIL 9 AM PST THIS MORNING… * WHAT…Visibility one quarter mile or less in dense fog. * WHERE…San Francisco, North Bay Interior Valleys, Coastal North Bay, San Francisco Peninsula Coast, Northern Salinas Valley/Hollister Valley and Carmel Valley, Monterey Bay Coast, and Big Sur Coast.