Dense Fog Advisory issued September 12 at 6:34PM PDT until September 13 at 9:00AM PDT by NWS

…DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM PDT SUNDAY… * WHAT…Visibility a quarter mile or less in dense fog. * WHERE…Coastal North Bay including the Point Reyes National Seashore, San Francisco Peninsula Coast, the Monterey Bay, the Salinas Valley and the Big Sur Coast. * WHEN…Until 9 AM PDT Sunday.