734
WWUS71 KLWX 202136
NPWLWX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
536 PM EDT MON APR 20 2026
DCZ001-MDZ011-013-014-016>018-504-506-508-VAZ036-037-053>057-527-
210545-
/O.CON.KLWX.FZ.W.0003.260421T0600Z-260421T1400Z/
DISTRICT OF COLUMBIA-SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE
ARUNDEL-CHARLES-ST. MARYS-CALVERT-CENTRAL AND SOUTHEAST
MONTGOMERY-CENTRAL AND SOUTHEAST HOWARD-SOUTHEAST HARFORD-NELSON-
ALBEMARLE-FAIRFAX-ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-
SPOTSYLVANIA-KING GEORGE-CENTRAL AND SOUTHEAST PRINCE
WILLIAM/MANASSAS/MANASSAS PARK-
536 PM EDT MON APR 20 2026
..FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 10 AM EDT TUESDAY
* WHAT...SUB-FREEZING TEMPERATURES AS LOW AS 29 EXPECTED, ESPECIALLY
IN OUTLYING AREAS AWAY FROM LARGER BODIES OF WATER.
* WHERE...PORTIONS OF DC, CENTRAL, NORTHERN, AND SOUTHERN MARYLAND,
AND CENTRAL AND NORTHERN VIRGINIA.
* WHEN...FROM 2 AM TO 10 AM EDT TUESDAY.
* IMPACTS...FROST AND FREEZE CONDITIONS COULD KILL CROPS, OTHER
SENSITIVE VEGETATION AND POSSIBLY DAMAGE UNPROTECTED OUTDOOR
PLUMBING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE STEPS NOW TO PROTECT TENDER PLANTS FROM THE COLD.
TO PREVENT WATER PIPES FROM FREEZING, WRAP OR DRAIN OR ALLOW THEM TO
DRIP SLOWLY.
MDZ003>006-008-503-505-507-VAZ025>031-038>040-050-051-501-502-
505>508-526-WVZ051>053-210545-
/O.CON.KLWX.FZ.W.0003.260421T0600Z-260421T1400Z/
WASHINGTON-FREDERICK-CARROLL-NORTHERN BALTIMORE-CECIL-NORTHWEST
MONTGOMERY-NORTHWEST HOWARD-NORTHWEST HARFORD-AUGUSTA-ROCKINGHAM-
SHENANDOAH-FREDERICK-PAGE-WARREN-CLARKE-GREENE-MADISON-
RAPPAHANNOCK-ORANGE-CULPEPER-NORTHERN FAUQUIER-SOUTHERN FAUQUIER-
WESTERN LOUDOUN-EASTERN LOUDOUN-NORTHERN VIRGINIA BLUE RIDGE-
CENTRAL VIRGINIA BLUE RIDGE-NORTHWEST PRINCE WILLIAM-MORGAN-
BERKELEY-JEFFERSON-
536 PM EDT MON APR 20 2026
..FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 10 AM EDT TUESDAY
* WHAT...SUB-FREEZING TEMPERATURES AS LOW AS 26 TO 30 DEGREES
EXPECTED.
* WHERE...PORTIONS OF CENTRAL, NORTH CENTRAL, NORTHEAST, AND
NORTHERN MARYLAND, CENTRAL, NORTHERN, NORTHWEST, AND WESTERN
VIRGINIA, AND PANHANDLE WEST VIRGINIA.
* WHEN...FROM 2 AM TO 10 AM EDT TUESDAY.
* IMPACTS...FROST AND FREEZE CONDITIONS COULD KILL CROPS, OTHER
SENSITIVE VEGETATION AND POSSIBLY DAMAGE UNPROTECTED OUTDOOR
PLUMBING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE STEPS NOW TO PROTECT TENDER PLANTS FROM THE COLD.
TO PREVENT WATER PIPES FROM FREEZING, WRAP OR DRAIN OR ALLOW THEM TO
DRIP SLOWLY.
EST
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