North Bay Interior Valleys and San Francisco Bay Shoreline were placed under an updated dense fog advisory by the National Weather Service on Tuesday at 9:04 a.m. The advisory is in effect until

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,

On Wednesday at 2:55 a.m. the National Weather Service issued an updated dense fog advisory in effect until 9 a.m. for Orange County.