Dense Fog Advisory
This alert has expired. For current weather alerts, visit the Weather Alerts Map.
Status
Event Extended (Both Time and Area) ExpiredStart Time
Wed 12/17/2025 11:35 PM ESTEnd Time
Thu 12/18/2025 10:00 AM ESTSignificance
AdvisoryImpacts
Low impact
Full Alert Message
URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 835 PM PST Wed Dec 17 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM PST THURSDAY... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...East Bay Interior Valleys. * WHEN...Until 7 AM PST Thursday. * 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.
Technical Header
CAZ510-181500- /O.EXB.KMTR.FG.Y.0037.000000T0000Z-251218T1500Z/ East Bay Interior Valleys- 835 PM PST Wed Dec 17 2025
