Dense fog blankets Baltimore and Eastern Shore through Wednesday morning

Dense fog has reduced visibility across parts of Maryland, prompting advisories in Baltimore County and the Lower Eastern Shore.

What’s Happening: The National Weather Service issued a Dense Fog Advisory for Northern and Southern Baltimore Counties until 10 a.m. Wednesday, with visibility dropping to one quarter mile or less.

A Special Weather Statement covers Dorchester, Wicomico, Somerset, Inland Worcester, and Maryland Beaches counties until 1 a.m. Wednesday, where patchy dense fog has cut visibility to between one half and two miles, occasionally dropping below one mile.

What’s Important: The fog developed Tuesday evening based on camera observations and weather monitoring. The Baltimore County advisory covers a smaller area but reports lower visibility than the Eastern Shore fog pattern.

How This Affects Real People: Drivers should slow down, use low beam headlights only, and increase following distance. Sudden visibility changes may occur, particularly on the Eastern Shore where fog is patchy rather than continuous.

The Coverage: The fog extends beyond Maryland into Delaware, New Jersey, and southeastern Pennsylvania, where a separate Dense Fog Advisory runs until 10 a.m. Wednesday covering portions of those states with visibility between one quarter and one half mile.