Frost Advisory
Status
Event Continued Active alertStart Time
Mon 10/19/2026 05:03 AM EDTEnd Time
Mon 10/19/2026 09:00 AM EDTSignificance
AdvisoryImpacts
Low impact
Locations Affected
Gaithersburg, MD ∙ Rockville, MD ∙ Linton Hall, VA ∙ Potomac Mills, VA ∙ Springfield, VA ∙ Belmont, VA ∙ Barboursville, VA ∙ Travilah, MD ∙ Kemp Mill, MD ∙ Brookeville, MDFull Alert Message
URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 503 AM EDT Mon Oct 19 2026 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of central and northern Maryland and central and northern Virginia. * WHEN...Until 9 AM EDT this morning. * 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>040-050-053-506-526-527-191300- /O.CON.KLWX.FR.Y.0010.000000T0000Z-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 Glenelg, Aspen Hill, Glenmont, McLean, Germantown, Clarksville, Hickory, Annandale, Everona, Simpsonville, Timonium, Dulles International Airport, Countryside, Shady Grove, Leesburg, Dale City, Poplar Springs, Five Forks, Four Corners, Oak Grove, Madison Mills, Montclair, Woodbridge, Dayton, Watersville, Fairfax Station, Reston, Langley, Lake Ridge, Fordsville, Castleton, Glenwood, Burr Hill, Cockeysville, Lisbon, Madison Run, Flint Hill, Unionville, Orange, Sterling Park, Bynum, Bethesda, Manassas, West Friendship, Woolsey, Silver Spring, Fallston, Haymarket, Aden, Boyds, Gleedsville, Randallstown, Owings Mills, Hackleys Crossroads, Lahore, Nasons, Rockville, Burke, Rock Mills, Gaithersburg, Twymans Mill, Long Green, Historic Ellicott City, Washington, Chantilly, Glyndon, Woodstock, Independent Hill, Bel Air, Columbia, and Reisterstown 503 AM EDT Mon Oct 19 2026
