866
WWUS71 KLWX 251612
NPWLWX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1212 PM EDT WED JUN 25 2025
DCZ001-MDZ003>006-008-011-013-014-016>018-502>508-VAZ025>031-036>040-
050-051-053>057-501-502-505-506-526-527-WVZ050>053-055-502-504-506-
260015-
/O.CON.KLWX.HT.Y.0004.000000T0000Z-250626T0100Z/
DISTRICT OF COLUMBIA-WASHINGTON-FREDERICK MD-CARROLL-NORTHERN
BALTIMORE-CECIL-SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL-
CHARLES-ST. MARYS-CALVERT-CENTRAL AND EASTERN ALLEGANY-NORTHWEST
MONTGOMERY-CENTRAL AND SOUTHEAST MONTGOMERY-NORTHWEST HOWARD-
CENTRAL AND SOUTHEAST HOWARD-NORTHWEST HARFORD-SOUTHEAST HARFORD-
AUGUSTA-ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-
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-HAMPSHIRE-MORGAN-BERKELEY-
JEFFERSON-HARDY-EASTERN GRANT-EASTERN MINERAL-EASTERN PENDLETON-
1212 PM EDT WED JUN 25 2025
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM EDT THIS EVENING
* WHAT...HEAT INDEX VALUES UP TO 108 EXPECTED, WITH HEAT INDEX
VALUES UP TO 104 DEGREES WEST OF THE BLUE RIDGE MOUNTAINS.
* WHERE...PORTIONS OF DC, CENTRAL, NORTH CENTRAL, NORTHEAST,
NORTHERN, SOUTHERN, AND WESTERN MARYLAND, CENTRAL, NORTHERN,
NORTHWEST, AND WESTERN VIRGINIA, AND EASTERN AND PANHANDLE WEST
VIRGINIA.
* 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.
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.
CJL
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