Dense Fog Advisory issued December 18 at 9:42AM PST until December 18 at 11:00AM PST by NWS San Francisco CA
Issue date: 2025-12-18T17:42+00:00
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Northern Monterey Bay, and East Bay Interior Valleys. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
