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 remains in effect to 11 am Tuesday, February 17, 2026 including the following jurisdictions.
MARYLAND: Washington, Frederick, Carroll, northern Baltimore, Montgomery, northwest Howard.
VIRGINIA: Greene, Madison, Rappahannock, Orange, Culpeper, Fairfax, Fauquier, Loudoun, Prince William, Manassas, Manassas Park.
…DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST THIS MORNING…
WHAT…Visibility less than one quarter of a mile in dense fog.
WHERE…Portions of central, north central, and northern Maryland and central, northern, and northwest Virginia.
WHEN…Until 11 AM EST 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.