Frost Advisory
Status
New Event Active alertStart Time
Mon 10/19/2026 01:00 AM EDTEnd Time
Mon 10/19/2026 09:00 AM EDTSignificance
AdvisoryImpacts
Low impact
Locations Affected
Gaithersburg, MD ∙ Rockville, MD ∙ Kensington, MD ∙ Clarksburg, MD ∙ Simpsonville, MD ∙ Fairwood of Hunt Valley, MD ∙ Greenbriar, VA ∙ Newington Forest, VA ∙ Huntington, VA ∙ Reston, VAFull Alert Message
URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 150 PM EDT Sun Oct 18 2026 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM EDT MONDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of central and northern Maryland and central and northern Virginia. * WHEN...From 1 AM to 9 AM EDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold.
Technical Header
MDZ006-503>507-VAZ038>040-050-053-506-526-527-190200- /O.NEW.KLWX.FR.Y.0010.261019T0500Z-261019T1300Z/ Northern Baltimore-Northwest Montgomery-Central and Southeast Montgomery-Northwest Howard-Central and Southeast Howard- Northwest Harford-Greene-Madison-Rappahannock-Orange-Fairfax- Eastern Loudoun-Northwest Prince William-Central and Southeast Prince William/Manassas/Manassas Park- Including the cities of Clarksville, Bynum, Reston, Poplar Springs, Castleton, Bel Air, Montclair, Madison Run, McLean, Orange, Woolsey, Everona, Countryside, Owings Mills, Haymarket, Glyndon, Dayton, Dale City, Timonium, Burr Hill, Sterling Park, Reisterstown, Twymans Mill, Hickory, Historic Ellicott City, Fairfax Station, Glenwood, Glenelg, Lake Ridge, Dulles International Airport, Rockville, Watersville, Hackleys Crossroads, Manassas, Randallstown, Boyds, Fordsville, Leesburg, Aden, Simpsonville, Woodstock, Gleedsville, Woodbridge, Cockeysville, Oak Grove, Columbia, Burke, Silver Spring, Washington, Bethesda, Chantilly, Independent Hill, Lahore, Gaithersburg, Four Corners, Flint Hill, Glenmont, Five Forks, Madison Mills, Rock Mills, Long Green, Germantown, Nasons, Unionville, Lisbon, Shady Grove, Fallston, Aspen Hill, West Friendship, Langley, and Annandale 150 PM EDT Sun Oct 18 2026
