The National Weather Service (NWS) Los Angeles/Oxnard office has issued a dense fog advisory in effect until 9 a.m. on Saturday. The advisory covers several areas, including:
The NWS warns of visibility reduced to one-quarter mile or less due to dense fog, which could significantly impair driving conditions.
"Visibility one quarter mile or less in dense fog."
"Low visibility could make driving conditions hazardous."
If you must drive in fog, the NWS advises to slow down, turn on headlights, and maintain a safe distance from vehicles ahead to reduce risk.
"If driving, slow down, use your headlights, and leave plenty of distance ahead of you."
A dense fog advisory is issued when widespread fog causes visibility to drop to one-quarter mile or less, making travel dangerous. Extra caution is recommended, and avoiding travel if possible is advised.
Content was created with AI assistance under newsroom editorial review. The original story was published on November 1, 2025, at 2:38 AM by the National Weather Service.
Author's summary: A dense fog advisory remains in effect across Southern California coastal and inland areas until Saturday morning, urging drivers to exercise caution due to severely reduced visibility.