Extreme Heat Watch

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
811 AM EDT Sun Jun 22 2025

DCZ001-MDZ005-006-008-011-013-014-016-504>508-VAZ053>055-502-526-527-
222015-
/O.CON.KLWX.XH.A.0001.250623T1500Z-250624T0100Z/
District of Columbia-Carroll-Northern Baltimore-Cecil-Southern
Baltimore-Prince Georges-Anne Arundel-Charles-Central and
Southeast Montgomery-Northwest Howard-Central and Southeast
Howard-Northwest Harford-Southeast Harford-Fairfax-
Arlington/Falls Church/Alexandria-Stafford-Southern Fauquier-
Northwest Prince William-Central and Southeast Prince
William/Manassas/Manassas Park-
811 AM EDT Sun Jun 22 2025

...EXTREME HEAT WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

* WHAT...Dangerously hot conditions with heat index values up to 110
  possible.

* WHERE...Washington DC, and portions of central and northern
  Maryland, and northern Virginia.

* WHEN...From Monday morning through Monday 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.

&&

$$

ADS

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
811 AM EDT Sun Jun 22 2025

MDZ003-VAZ027>031-WVZ052-053-222015-
/O.CON.KLWX.HT.Y.0001.250622T1600Z-250623T0000Z/
/O.CON.KLWX.XH.A.0001.250623T1500Z-250624T0100Z/
Washington-Shenandoah-Frederick VA-Page-Warren-Clarke-Berkeley-
Jefferson-
811 AM EDT Sun Jun 22 2025

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS
EVENING...
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

* WHAT...For the Heat Advisory, heat index values up to 104
  expected. For the Extreme Heat Watch, dangerously hot conditions
  with heat index values up to 109 possible.

* WHERE...In Maryland, Washington County. In Virginia, Clarke,
  Frederick, Page, Shenandoah, and Warren Counties. In West
  Virginia, Berkeley and Jefferson Counties.

* WHEN...For the Heat Advisory, from noon today to 8 PM EDT this
  evening. For the Extreme Heat Watch, from Monday morning through
  Monday evening.

* 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.

&&

$$