Dense Fog Advisory

Locations Affected

Oakland, CA ∙ San Francisco, CA ∙ Fremont, CA ∙ Santa Rosa, CA ∙ Hayward, CA ∙ Sunnyvale, CA ∙ Daly City, CA ∙ Richmond, CA ∙ Berkeley, CA ∙ Concord, CA

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 338 AM PST Tue Nov 25 2025 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...East Bay Interior Valleys. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. Limited visibility will result in hazardous driving conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. If commuting, allow extra drive time to reach your destination safely.

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