Dense Fog Advisory issued December 12 at 9:24PM PST until December 13 at 8:00AM PST by NWS

…DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM PST FRIDAY… * 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.