On Tuesday at 4:33 a.m. the NWS San Francisco CA issued a dense fog advisory in effect until 9 a.m. The advisory is for Coastal North Bay Including Point Reyes National Seashore, North Bay Interior Valleys,

Coastal North Bay including Point Reyes National Seashore, North Bay Interior Valleys, San Francisco Bay Shoreline and East Bay Interior Valleys as well as San Francisco County were placed under a

San Diego County Coastal Areas and Orange County Coast are under a dense fog advisory which was issued by the National Weather Service on Tuesday at 2:28 a.m. The advisory is in effect until 9 a.m.