Atlantic City, New Jersey – Drivers along the Mid-Atlantic coast could encounter dangerously low visibility overnight as dense fog spreads across New Jersey, Delaware, Maryland, and southeastern Pennsylvania before the Tuesday morning commute.
According to the National Weather Service in Mount Holly, a Dense Fog Advisory remains in effect until 10 a.m. Tuesday for coastal areas including Atlantic City, Ocean City, Cape May, Sandy Hook, and Long Beach Island. Visibility in the thickest fog may drop to one quarter mile or less, creating hazardous travel conditions on major roadways.
The fog is expected to expand inland overnight. Communities including Philadelphia, Camden, Cherry Hill, Wilmington, Trenton, Dover, and Freehold could see visibility fall below one-half mile between 2 a.m. and 10 a.m. Tuesday. Drivers along Interstate 95, the Garden State Parkway, and the Atlantic City Expressway may experience rapidly changing visibility during the early commute.
Marine conditions are also deteriorating. Dense fog over the Delaware Bay and Atlantic coastal waters from Sandy Hook to Fenwick Island could reduce visibility to one nautical mile or less through late Tuesday morning, making navigation difficult for boaters.
Officials urge drivers to slow down, use low-beam headlights, and leave extra space between vehicles. Conditions should gradually improve by late Tuesday morning as fog lifts across the region, though additional marine visibility issues may linger offshore.


