WWUS76 KMTR 121327

NPWMTR



URGENT - WEATHER MESSAGE

National Weather Service San Francisco Bay Area

527 AM PST Fri Dec 12 2025



CAZ506-510-513-121900-

/O.NEW.KMTR.FG.Y.0033.251212T1327Z-251212T1900Z/

North Bay Interior Valleys-East Bay Interior Valleys-

Santa Clara Valley...including San Jose-

527 AM PST Fri Dec 12 2025



...DENSE FOG ADVISORY IN EFFECT UNTIL 11 AM PST THIS MORNING...



* WHAT...Visibility one quarter mile or less in dense fog.



* WHERE...North Bay Interior Valleys, East Bay Interior Valleys 

  and Santa Clara Valley, including San Jose.



* WHEN...Until 11 AM PST this morning.



* IMPACTS...Hazardous driving conditions due to low visibility.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



If driving, slow down, use your headlights, and leave plenty of

distance ahead of you.



&&



$$



For more information from the National Weather Service visit

https://weather.gov/mtr