At 4:03 a.m. on Sunday, the National Weather Service released a dense fog advisory in effect until 11 a.m. for Santa Clara Valley Including San Jose.

The NWS San Francisco CA says to be ready for, “Visibility one quarter mile or less in dense fog.”

“Hazardous driving conditions due to low visibility,” the NWS said. “If driving, slow down, use your headlights, and leave plenty of distance ahead of you.”

Navigating fog: Safety tips by the NWS

When a dense fog advisory is issued for your area, it means that widespread dense fog has developed and visibility can plummet to a quarter-mile or less. These conditions pose challenges for travel, so exercise extra caution on the road or consider postponing your trip if possible.

If driving through fog becomes inevitable, remember these safety gu

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