The National Weather Service released a dense fog advisory at 1:17 p.m. on Friday in effect until 6 p.m. for 5 Freeway through Grapevine.

The NWS Hanford CA says to expect, “Visibility one quarter mile or less in dense fog.”

“Low visibility could make driving conditions hazardous,” 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

If a dense fog advisory is issued for your area, it means that widespread dense fog has developed and visibility often drops to just a quarter-mile or less. These conditions can make driving challenging, so exercise extreme caution on the road, and if possible, consider delaying your trip.

If driving through fog becomes inevitable, remember these safety guidelines:

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