Dense Fog Advisory

Locations Affected

Stockton, CA ∙ Sacramento, CA ∙ Modesto, CA ∙ Elk Grove, CA ∙ Fairfield, CA ∙ Roseville, CA ∙ Vallejo, CA ∙ Vacaville, CA ∙ Tracy, CA ∙ Chico, CA

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Sacramento CA 1245 PM PST Fri Jan 30 2026 ...DENSE FOG ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON PST SATURDAY... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Carquinez Strait and Delta, Central/Southern Sacramento Valley, Northern San Joaquin Valley. * WHEN...From midnight tonight to noon PST Saturday. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

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