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Updated:January 24, 2026 1:15 am PST

Dense Fog Advisory DENSE FOG ADVISORY  
Amador County
Effective: Fri, 1/23 2:34pm Severity:  Moderate 
Updated: January 24, 2026 1:15 am Urgency: Expected
Expires: Sat, 1/24 10:00am Certainty: Likely
Areas Affected: Central Sacramento Valley - Southern Sacramento Valley - Carquinez Strait and Delta - Northern San Joaquin Valley
 
Alert Details: 
* WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...Carquinez Strait and Delta, Central Sacramento Valley,
Northern San Joaquin Valley, and Southern Sacramento Valley.

* WHEN...Until 10 AM PST Saturday.

* IMPACTS...Low visibility could make driving conditions hazardous
during the evening commute and the Saturday morning commute.

* ADDITIONAL DETAILS...Dangerous driving conditions with
visibilities lower than 500 feet at times.

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