977
WWUS71 KLWX 241806
NPWLWX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
206 PM EDT TUE JUN 24 2025
DCZ001-MDZ004>006-008-011-013-014-016>018-503>508-VAZ036>040-050-051-
053>057-501-502-505-506-526-527-250215-
/O.UPG.KLWX.XH.A.0003.250625T1500Z-250626T0100Z/
/O.NEW.KLWX.HT.Y.0004.250625T1500Z-250626T0100Z/
/O.CON.KLWX.XH.W.0002.000000T0000Z-250625T0100Z/
DISTRICT OF COLUMBIA-FREDERICK MD-CARROLL-NORTHERN BALTIMORE-
CECIL-SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST.
MARYS-CALVERT-NORTHWEST MONTGOMERY-CENTRAL AND SOUTHEAST
MONTGOMERY-NORTHWEST HOWARD-CENTRAL AND SOUTHEAST HOWARD-
NORTHWEST HARFORD-SOUTHEAST HARFORD-NELSON-ALBEMARLE-GREENE-
MADISON-RAPPAHANNOCK-ORANGE-CULPEPER-FAIRFAX-ARLINGTON/FALLS
CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA-KING GEORGE-NORTHERN
FAUQUIER-SOUTHERN FAUQUIER-WESTERN LOUDOUN-EASTERN LOUDOUN-
NORTHWEST PRINCE WILLIAM-CENTRAL AND SOUTHEAST PRINCE
WILLIAM/MANASSAS/MANASSAS PARK-
206 PM EDT TUE JUN 24 2025
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM EDT THIS
EVENING...
..HEAT ADVISORY IN EFFECT FROM 11 AM TO 9 PM EDT WEDNESDAY
* WHAT...FOR THE EXTREME HEAT WARNING, DANGEROUSLY HOT CONDITIONS
WITH HEAT INDEX VALUES UP TO 111. FOR THE HEAT ADVISORY, HEAT
INDEX VALUES UP TO 108 EXPECTED.
* WHERE...PORTIONS OF DC, CENTRAL, NORTH CENTRAL, NORTHEAST,
NORTHERN, AND SOUTHERN MARYLAND, AND CENTRAL, NORTHERN, AND
NORTHWEST VIRGINIA.
* WHEN...FOR THE EXTREME HEAT WARNING, UNTIL 9 PM EDT THIS EVENING.
FOR THE HEAT ADVISORY, FROM 11 AM TO 9 PM EDT WEDNESDAY.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT AND HIGH HUMIDITY EVENTS. HOT TEMPERATURES AND HIGH
HUMIDITY MAY CAUSE HEAT ILLNESSES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE.
MDZ003-VAZ027>031-WVZ052-053-250215-
/O.UPG.KLWX.XH.A.0003.250625T1500Z-250626T0100Z/
/O.NEW.KLWX.HT.Y.0004.250625T1500Z-250626T0100Z/
/O.CON.KLWX.XH.W.0002.000000T0000Z-250625T0100Z/
WASHINGTON-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-BERKELEY-
JEFFERSON-
206 PM EDT TUE JUN 24 2025
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM EDT THIS
EVENING...
..HEAT ADVISORY IN EFFECT FROM 11 AM TO 9 PM EDT WEDNESDAY
* WHAT...FOR THE EXTREME HEAT WARNING, DANGEROUSLY HOT CONDITIONS
WITH HEAT INDEX VALUES UP TO 108. FOR THE HEAT ADVISORY, HEAT
INDEX VALUES UP TO 104 EXPECTED.
* WHERE...IN MARYLAND, WASHINGTON COUNTY. IN VIRGINIA, CLARKE,
FREDERICK VA, PAGE, SHENANDOAH, AND WARREN COUNTIES. IN WEST
VIRGINIA, BERKELEY AND JEFFERSON COUNTIES.
* WHEN...FOR THE EXTREME HEAT WARNING, UNTIL 9 PM EDT THIS EVENING.
FOR THE HEAT ADVISORY, FROM 11 AM TO 9 PM EDT WEDNESDAY.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE.
MDZ502-VAZ026-WVZ050-051-055-502-504-506-250215-
/O.NEW.KLWX.HT.Y.0004.250625T1500Z-250626T0100Z/
/O.CON.KLWX.HT.Y.0003.000000T0000Z-250625T0100Z/
CENTRAL AND EASTERN ALLEGANY-ROCKINGHAM-HAMPSHIRE-MORGAN-HARDY-
EASTERN GRANT-EASTERN MINERAL-EASTERN PENDLETON-
206 PM EDT TUE JUN 24 2025
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM EDT THIS EVENING
..HEAT ADVISORY IN EFFECT FROM 11 AM TO 9 PM EDT WEDNESDAY
* WHAT...FOR THE FIRST HEAT ADVISORY, HEAT INDEX VALUES UP TO 104.
FOR THE SECOND HEAT ADVISORY, HEAT INDEX VALUES UP TO 102 EXPECTED.
* WHERE...IN MARYLAND, CENTRAL AND EASTERN ALLEGANY COUNTY. IN
VIRGINIA, ROCKINGHAM COUNTY. IN WEST VIRGINIA, EASTERN GRANT,
EASTERN MINERAL, EASTERN PENDLETON, HAMPSHIRE, HARDY, AND MORGAN
COUNTIES.
* WHEN...FOR THE FIRST HEAT ADVISORY, UNTIL 9 PM EDT THIS EVENING.
FOR THE SECOND HEAT ADVISORY, FROM 11 AM TO 9 PM EDT WEDNESDAY.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE.
VAZ025-250100-
/O.CON.KLWX.HT.Y.0003.000000T0000Z-250625T0100Z/
AUGUSTA-
206 PM EDT TUE JUN 24 2025
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM EDT THIS EVENING
* WHAT...HEAT INDEX VALUES UP TO 104.
* WHERE...AUGUSTA COUNTY.
* WHEN...UNTIL 9 PM EDT THIS EVENING.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
CJL
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page