Dense Fog Advisory in Effect Across Delmarva: Visibility Drops to Quarter Mile

Wednesday, March 4, 2026 at 5:05 AM

Dense fog is reducing visibility to a quarter mile across Delmarva, prompting safety warnings for drivers until 10 PM tonight.

A Dense Fog Advisory remains in effect until 10 PM tonight across the entire Delmarva Peninsula, with visibility dropping to just a quarter mile or less in many areas. The National Weather Service issued the advisory at 4:04 PM, warning drivers of hazardous conditions throughout Delaware, Maryland’s Eastern Shore, and parts of Virginia. All three Delaware counties – New Castle, Kent, and Sussex – are under the advisory, including the Delaware beaches. On Maryland’s Eastern Shore, the fog is impacting Kent, Queen Anne’s, Talbot, Caroline, and Sussex counties. The advisory also extends into parts of New Jersey and Pennsylvania. “Low visibility could make driving conditions hazardous,” meteorologists warn. If you must travel tonight, officials urge drivers to slow down, use headlights, and maintain extra distance between vehicles. The dense fog developed as warm, moist air moved over cooler surfaces, creating ideal conditions for reduced visibility. Areas near water bodies, including the Chesapeake Bay and Atlantic coast, are seeing some of the thickest fog. Conditions are expected to gradually improve throughout the evening, with the advisory set to expire at 10 PM. Motorists should continue monitoring visibility conditions and adjust their driving accordingly.

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