A dense fog advisory is in effect across central Pennsylvania until 7 a.m. Wednesday, according to the National Weather Service.

Visibility on the road is down to one-quarter mile or less, making for hazardous travel conditions, according to the advisory.

The NWS advises motorists to slow down and use low-beam lights to maximize visibility and time to react. Motorists should keep a safe following distance between vehicles and allow extra time to reach their destinations.

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