964
WWUS71 KLWX 240846
NPWLWX

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
446 AM EDT Tue Jun 24 2025

DCZ001-MDZ004>006-008-011-013-014-016>018-503>508-VAZ036>040-050-051-
053>057-501-502-505-506-526-527-241700-
/O.CON.KLWX.XH.W.0002.250624T1500Z-250625T0100Z/
/O.CON.KLWX.XH.A.0003.250625T1500Z-250626T0100Z/
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-
446 AM EDT Tue Jun 24 2025

...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
9 PM EDT THIS EVENING...
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH WEDNESDAY EVENING...

* WHAT...For the Extreme Heat Warning, dangerously hot conditions
  with heat index values up to 111 expected. For the Extreme Heat
  Watch, dangerously hot conditions with heat index values up to 110
  possible.

* WHERE...DC, central, north central, northeast, northern, and
  southern Maryland, and central, northern, and northwest Virginia.

* WHEN...For the Extreme Heat Warning, from 11 AM this morning to 9
  PM EDT this evening. For the Extreme Heat Watch, from Wednesday
  morning through Wednesday 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.

&&

$$

MDZ003-VAZ027>031-WVZ052-053-241700-
/O.CON.KLWX.XH.W.0002.250624T1500Z-250625T0100Z/
/O.CON.KLWX.XH.A.0003.250625T1500Z-250626T0100Z/
Washington-Shenandoah-Frederick VA-Page-Warren-Clarke-Berkeley-
Jefferson-
446 AM EDT Tue Jun 24 2025

...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
9 PM EDT THIS EVENING...
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH WEDNESDAY EVENING...

* WHAT...For the Extreme Heat Warning, dangerously hot conditions
  with heat index values up to 108 expected. For the Extreme Heat
  Watch, dangerously hot conditions with heat index values up to 108
  possible.

* 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, from 11 AM this morning to 9
  PM EDT this evening. For the Extreme Heat Watch, from Wednesday
  morning through Wednesday 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.

&&

$$

MDZ502-VAZ025-026-WVZ050-051-055-502-504-506-241700-
/O.CON.KLWX.HT.Y.0003.250624T1500Z-250625T0100Z/
Central and Eastern Allegany-Augusta-Rockingham-Hampshire-Morgan-
Hardy-Eastern Grant-Eastern Mineral-Eastern Pendleton-
446 AM EDT Tue Jun 24 2025

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 9 PM
EDT THIS EVENING...

* WHAT...Heat index values up to 103 expected.

* WHERE...In Maryland, Central and Eastern Allegany County. In
  Virginia, Augusta and Rockingham Counties. In West Virginia,
  Eastern Grant, Eastern Mineral, Eastern Pendleton, Hampshire,
  Hardy, and Morgan Counties.

* WHEN...From 11 AM this morning to 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.

&&

$$

BRO