Update: Dense fog advisory for 4 N.J. counties until Sunday morning – visibility as low as 1/4 mile

On Saturday at 1:30 p.m. an updated dense fog advisory was issued by the National Weather Service valid from 10 p.m. until Sunday 9 a.m. for Hudson, Bergen, Essex and Union counties.

The weather service says to prepare for, “Visibility one quarter mile or less in dense fog.”