5 Freeway through Grapevine is the focus of a dense fog advisory released at 7:40 p.m. on Monday by the National Weather Service. The advisory is in effect until Tuesday Dec. 9, at 11 a.m.

“Visibility one quarter mile or less in dense fog for elevations between 1000 and 2500 feet,” can be expected according to the NWS Hanford CA . “Mountain Highways included but not limited to: 41, 58, 152, 168, 198 and Interstate 5.”

“Sudden encounter of low visibility could make driving conditions hazardous,” according to the NWS. “If driving, slow down, use your headlights, and leave plenty of distance ahead of you.”

The full list of affected locations includes:

5 Freeway through Grapevine

West Side Mountains north of 198

Coalinga – Avenal

West Side Mountains South of 198

South End San Joaquin

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