Dense Fog Advisory 03/04/2026 23:02 Maryland, Virginia

Headline: 
Dense Fog Advisory issued March 5 at 2:02AM EST until March 5 at 10:00AM EST by NWS Baltimore MD/Washington DC
Event: 
Dense Fog Advisory
Urgency: 
Expected
Effective: 
March 4, 2026 - 11:02pm
Expires: 
March 5, 2026 - 7:00am
Description: 
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of central and northern Maryland and central, northern, and northwest Virginia. * WHEN...Until 10 AM EST this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
Instruction: 
If driving, slow down, use your low beam headlights, and leave plenty of distance ahead of you.
Area Description: 
Frederick; Carroll; Northern Baltimore; Northwest Montgomery; Central and Southeast Montgomery; Northwest Howard; Central and Southeast Howard; Northwest Harford; Rockingham; Shenandoah; Page; Greene; Madison; Rappahannock; Orange; Culpeper; Fairfax; Northern Fauquier; Southern Fauquier; Western Loudoun; Eastern Loudoun; Northwest Prince William; Central and Southeast Prince William/Manassas/Manassas Park
Forcast Office: 
NWS Baltimore MD/Washington DC
Sender: 
w-nws.webmaster@noaa.gov