Note: The Dense Fog Advisory has expired for the DC region. The most recent advisory issuance before the expiration is below.
A Dense Fog Advisory is now in effect to 8 am Friday, April 3, 2026 including the following jurisdictions.
MARYLAND: western Allegany, eastern Garrett.
WEST VIRGINIA: western Mineral.
The following is excerpted from the National Weather Service:
…DENSE FOG ADVISORY NOW IN EFFECT UNTIL 8 AM EDT THIS MORNING…
WHAT…Visibility one quarter mile or less in dense fog.
WHERE…In Maryland, Eastern Garrett and Extreme Western Allegany Counties. In West Virginia, Western Mineral County.
WHEN…Until 8 AM EDT this morning.
IMPACTS…Low visibility could make driving conditions hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.