Dense fog advisory issued for Bay Area |
Changing weather patterns brought heavy fog to the San Carlos Caltrain station on Thursday, Feb. 26, 2026.
The National Weather Service issued and then extended a dense fog advisory on Thursday for parts of the Bay Area, including the San Francisco bayshore, the North Bay and the Salinas Valley, as developing high pressure in the area this week helped usher in the weather phenomenon.
The heavy fog is expected to last through at least Thursday morning and resulted in low visibility for much of the region at the start of the morning commute. The San Francisco........