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Updated:December 5, 2025 9:01 pm PST

Dense Fog Advisory DENSE FOG ADVISORY  
Merced County
Effective: Fri, 12/5 6:45pm Severity:  Moderate 
Updated: December 5, 2025 9:01 pm Urgency: Expected
Expires: Sat, 12/6 4:00am Certainty: Likely
Areas Affected: West Side Mountains north of 198
 
Alert Details: 
* WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...West Side Mountains north of 198. This includes Highway
152 through Pacheco Pass.

* WHEN...Until noon PST Saturday.

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

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