Dense Fog Advisory for Southern California Until Saturday Morning
The National Weather Service (NWS) Los Angeles/Oxnard office issued a dense fog advisory in effect until 9 a.m. Saturday. The advisory covers several coastal and inland areas across Southern California, including San Luis Obispo County Beaches and Central Coast, Santa Barbara County Coasts and Valleys, Ventura County Beaches and Inland Coast, and the Malibu Coast.
“Visibility one quarter mile or less in dense fog.”
“Low visibility could make driving conditions hazardous,” explained the NWS. “If driving, slow down, use your headlights, and leave plenty of distance ahead of you.”
Dense fog advisories are issued by local NWS offices when widespread fog significantly reduces visibility to a quarter mile or less, creating difficult and potentially dangerous driving conditions.
Safety Recommendations
- Reduce speed when driving through fog.
- Use low-beam headlights at all times.
- Maintain a safe distance from other vehicles.
- If possible, delay travel until conditions improve.
Source: The National Weather Service
Originally published November 1, 2025, at 2:38 a.m.
Author’s Summary
A dense fog advisory remains active across parts of Southern California, with the NWS urging drivers to exercise caution and prepare for extremely low visibility.