At 12:52 a.m. on Tuesday, the National Weather Service issued a dense fog advisory in effect until 11 a.m. for East Bay Interior Valleys.

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

“Low visibility could make driving conditions hazardous. Limited visibility will result in hazardous driving conditions,” the NWS said. “If driving, slow down, use your headlights, and leave plenty of distance ahead of you. If commuting, allow extra drive time to reach your destination safely.”

Fog safety: Tips from the NWS for safe travels

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 e

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