924
WWUS71 KLWX 030518
NPWLWX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
118 AM EDT FRI JUL 3 2026
DCZ001-MDZ004>006-008-011-013-014-016>018-503>508-VAZ036>040-050-051-
053>057-501-502-505-506-526-527-031330-
/O.EXT.KLWX.XH.W.0003.260703T1400Z-260704T0100Z/
/O.EXT.KLWX.XH.W.0004.260704T1400Z-260705T0100Z/
DISTRICT OF COLUMBIA-FREDERICK-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-
118 AM EDT FRI JUL 3 2026
...EXTREME HEAT WARNING NOW IN EFFECT FROM 10 AM THIS MORNING TO 9
PM EDT THIS EVENING...
...EXTREME HEAT WARNING NOW IN EFFECT FROM 10 AM TO 9 PM EDT
SATURDAY...
* WHAT...DANGEROUSLY HOT CONDITIONS EACH AFTERNOON WITH HEAT INDEX
VALUES BETWEEN 110 TO 113 EXPECTED.
* WHERE...WASHINGTON DC, AND PORTIONS OF CENTRAL, NORTH CENTRAL,
NORTHEAST, NORTHERN, AND SOUTHERN MARYLAND, AND CENTRAL, NORTHERN,
AND NORTHWEST VIRGINIA.
* WHEN...FOR THE FIRST EXTREME HEAT WARNING, FROM 10 AM THIS MORNING
TO 9 PM EDT THIS EVENING. FOR THE SECOND EXTREME HEAT WARNING,
FROM 10 AM TO 9 PM EDT SATURDAY.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT AND HIGH HUMIDITY EVENTS.
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.
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
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-WVZ050>053-055-031330-
/O.CON.KLWX.XH.W.0003.260703T1400Z-260704T0000Z/
/O.CON.KLWX.HT.Y.0007.260704T1400Z-260705T0000Z/
WASHINGTON-SHENANDOAH-FREDERICK-PAGE-WARREN-CLARKE-HAMPSHIRE-
MORGAN-BERKELEY-JEFFERSON-HARDY-
118 AM EDT FRI JUL 3 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
8 PM EDT THIS EVENING...
..HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 8 PM EDT SATURDAY
* WHAT...FOR THE EXTREME HEAT WARNING, DANGEROUSLY HOT CONDITIONS
WITH HEAT INDEX VALUES UP TO 107 EXPECTED. FOR THE HEAT ADVISORY,
HEAT INDEX VALUES UP TO 105 EXPECTED.
* WHERE...PORTIONS OF NORTH CENTRAL MARYLAND, NORTHWEST VIRGINIA,
AND EASTERN AND PANHANDLE WEST VIRGINIA.
* WHEN...FOR THE EXTREME HEAT WARNING, FROM 10 AM THIS MORNING TO 8
PM EDT THIS EVENING. FOR THE HEAT ADVISORY, FROM 10 AM TO 8 PM EDT
SATURDAY.
* 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.
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
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.
TO REDUCE RISK DURING OUTDOOR WORK, THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN
SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT
SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN
EMERGENCY! CALL 9 1 1.
MDZ502-WVZ502-504-031330-
/O.CON.KLWX.XH.W.0003.260703T1400Z-260704T0000Z/
CENTRAL AND EASTERN ALLEGANY-EASTERN GRANT-EASTERN MINERAL-
118 AM EDT FRI JUL 3 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
8 PM EDT THIS EVENING...
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX VALUES UP TO 106
EXPECTED.
* WHERE...IN MARYLAND, CENTRAL AND EASTERN ALLEGANY COUNTY. IN WEST
VIRGINIA, EASTERN GRANT AND EASTERN MINERAL COUNTIES.
* WHEN...FROM 10 AM THIS MORNING TO 8 PM EDT THIS EVENING.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT AND HIGH HUMIDITY EVENTS.
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.
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
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.
VAZ025-026-031330-
/O.CON.KLWX.HT.Y.0006.260703T1400Z-260704T0000Z/
/O.CON.KLWX.HT.Y.0007.260704T1400Z-260705T0000Z/
AUGUSTA-ROCKINGHAM-
118 AM EDT FRI JUL 3 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM
EDT THIS EVENING...
..HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 8 PM EDT SATURDAY
* WHAT...HEAT INDEX VALUES BETWEEN 100 TO 105 EXPECTED EACH
AFTERNOON.
* WHERE...AUGUSTA AND ROCKINGHAM COUNTIES.
* WHEN...FOR THE FIRST HEAT ADVISORY, FROM 10 AM THIS MORNING TO 8
PM EDT THIS EVENING. FOR THE SECOND HEAT ADVISORY, FROM 10 AM TO 8
PM EDT SATURDAY.
* 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.
TO REDUCE RISK DURING OUTDOOR WORK, THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN
SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT
SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN
EMERGENCY! CALL 9 1 1.
MDZ501-VAZ504-WVZ503-506-031330-
/O.CON.KLWX.HT.Y.0006.260703T1400Z-260704T0000Z/
EXTREME WESTERN ALLEGANY-EASTERN HIGHLAND-WESTERN MINERAL-EASTERN
PENDLETON-
118 AM EDT FRI JUL 3 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM
EDT THIS EVENING...
* WHAT...HEAT INDEX VALUES UP TO 101 EXPECTED.
* WHERE...IN MARYLAND, EXTREME WESTERN ALLEGANY COUNTY. IN VIRGINIA,
EASTERN HIGHLAND COUNTY. IN WEST VIRGINIA, EASTERN PENDLETON AND
WESTERN MINERAL COUNTIES.
* WHEN...FROM 10 AM THIS MORNING TO 8 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.
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.
MDZ509-510-VAZ503-507-508-WVZ501-505-031330-
/O.CON.KLWX.HT.Y.0006.260703T1400Z-260704T0000Z/
WESTERN GARRETT-EASTERN GARRETT-WESTERN HIGHLAND-NORTHERN
VIRGINIA BLUE RIDGE-CENTRAL VIRGINIA BLUE RIDGE-WESTERN GRANT-
WESTERN PENDLETON-
118 AM EDT FRI JUL 3 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM
EDT THIS EVENING...
* WHAT...HEAT INDEX VALUES UP TO 100 EXPECTED.
* WHERE...IN MARYLAND, EASTERN GARRETT AND WESTERN GARRETT COUNTIES.
IN VIRGINIA, CENTRAL VIRGINIA BLUE RIDGE, NORTHERN VIRGINIA BLUE
RIDGE, AND WESTERN HIGHLAND COUNTIES. IN WEST VIRGINIA, WESTERN
GRANT AND WESTERN PENDLETON COUNTIES.
* WHEN...FROM 10 AM THIS MORNING TO 8 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.
BRO
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