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Updated:December 18, 2024 9:45 pm PST

Dense Fog Advisory DENSE FOG ADVISORY  
Contra Costa County

  Effective: Wed, 12/18 9:25pm Severity:  Moderate 
  Updated: December 18, 2024 9:45 pm Urgency: Expected
  Expires: Thu, 12/19 6:30am Certainty: Likely

Areas Affected: San Francisco - North Bay Interior Valleys - San Francisco Bay Shoreline - East Bay Interior Valleys - Santa Clara Valley Including San Jose
 
Alert Details:
* WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...The Santa Clara Valley, San Francisco, North Bay Interior
Valleys, San Francisco Bay Shoreline, and East Bay Interior
Valleys.

* WHEN...Until noon PST Thursday.

* IMPACTS...Low visibility could make driving conditions hazardous.

Information:
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.