Dense fog advisory affecting Mercer County until Friday morning

At 3:37 a.m. on Friday, the National Weather Service issued a dense fog advisory in effect until 9 a.m. for Mercer County.

The weather service adds to be ready for, “Visibility one quarter mile or less in dense fog.”

“Low visibility could make driving conditions hazardous,” explains the weather service. “If driving, slow down, use your headlights, and leave plenty of distance ahead of you.”