Extreme Heat Warning
URGENT - WEATHER MESSAGE
National Weather Service Pittsburgh PA
333 AM EDT Mon Jun 23 2025
PAZ014-020-021-029-073-075-231545-
/O.CON.KPBZ.XH.W.0001.000000T0000Z-250626T0000Z/
Butler-Beaver-Allegheny-Washington-Westmoreland-Fayette-
Including the cities of Canonsburg, Washington, New Kensington,
Monaca, Murrysville, Beaver Falls, Latrobe, Aliquippa,
Greensburg, Lower Burrell, Uniontown, Monessen, Butler,
Pittsburgh Metro Area, and Ambridge
333 AM EDT Mon Jun 23 2025
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT WEDNESDAY...
* WHAT...Dangerously hot conditions with heat index values around
105.
* WHERE...Beaver, Fayette, Washington, Allegheny, Butler, and
Westmoreland Counties.
* WHEN...Until 8 PM EDT Wednesday.
* 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.
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.
Stay cool, stay hydrated, stay informed.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Charleston WV
243 AM EDT Mon Jun 23 2025
KYZ103-OHZ075-076-085>087-WVZ005>011-013>020-026>031-231445-
/O.CON.KRLX.XH.W.0001.000000T0000Z-250626T0000Z/
Boyd-Athens-Washington-Meigs-Gallia-Lawrence OH-Wayne-Cabell-
Mason-Jackson WV-Wood-Pleasants-Tyler-Lincoln-Putnam-Kanawha-
Roane-Wirt-Calhoun-Ritchie-Doddridge-Boone-Clay-Braxton-Gilmer-
Lewis-Harrison-
Including the cities of Alum Creek, Bridgeport, South Charleston,
Sistersville, Pomeroy, Ironton, Madison, Belmont, West Union,
Cannonsburg, Teays Valley, St. Marys, Ripley, Clarksburg,
Grantsville, Vienna, Paden City, Ceredo, Saint Albans,
Parkersburg, Middlebourne, Burnsville, Gallipolis, Huntington,
Clay, Belpre, Athens, South Point, Kenova, Elizabeth, Ashland,
New Haven, Marietta, Weston, Lake Vesuvius, Glenville,
Harrisville, Ravenswood, Hamlin, Point Pleasant, Sutton, Harts,
Gassaway, Hurricane, Pennsboro, Charleston, Wayne, and Spencer
243 AM EDT Mon Jun 23 2025
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT WEDNESDAY...
* WHAT...Dangerously hot conditions with heat index values up to 107
degrees.
* WHERE...Portions of northeast Kentucky, southeast Ohio, and
central, northern, southern, and western West Virginia.
* WHEN...Until 8 PM EDT Wednesday.
* 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. Young children and
pets should never be left unattended in vehicles under any
circumstances.
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.
Additional information can be found at https://www.weather.gov/rlx
as well as on our X and Facebook pages.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
812 PM EDT Sun Jun 22 2025
MDZ004-503-VAZ505-506-230815-
/O.EXP.KLWX.HT.Y.0001.000000T0000Z-250623T0000Z/
/O.CON.KLWX.XH.W.0001.250623T1500Z-250624T0100Z/
/O.CON.KLWX.XH.A.0002.250624T1500Z-250625T0100Z/
Frederick MD-Northwest Montgomery-Western Loudoun-Eastern Loudoun-
812 PM EDT Sun Jun 22 2025
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM TO 9 PM EDT
MONDAY...
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY EVENING...
...HEAT ADVISORY HAS EXPIRED...
* WHAT...For the Extreme Heat Warning, dangerously hot conditions
with heat index values up to 110 expected. For the Extreme Heat
Watch, dangerously hot conditions with heat index values up to 110
possible.
* WHERE...In Maryland, Northwest Montgomery and Frederick MD
Counties. In Virginia, Eastern Loudoun and Western Loudoun
Counties.
* WHEN...For the Extreme Heat Warning, from 11 AM to 9 PM EDT
Monday. For the Extreme Heat Watch, from Tuesday morning through
Tuesday 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
812 PM EDT Sun Jun 22 2025
DCZ001-MDZ005-006-008-011-013-014-016>018-504>508-VAZ053>057-502-526-
527-230815-
/O.CON.KLWX.XH.W.0001.250623T1500Z-250624T0100Z/
/O.CON.KLWX.XH.A.0002.250624T1500Z-250625T0100Z/
District of Columbia-Carroll-Northern Baltimore-Cecil-Southern
Baltimore-Prince Georges-Anne Arundel-Charles-St. Marys-Calvert-
Central and Southeast Montgomery-Northwest Howard-Central and
Southeast Howard-Northwest Harford-Southeast Harford-Fairfax-
Arlington/Falls Church/Alexandria-Stafford-Spotsylvania-King
George-Southern Fauquier-Northwest Prince William-Central and
Southeast Prince William/Manassas/Manassas Park-
812 PM EDT Sun Jun 22 2025
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM TO 9 PM EDT
MONDAY...
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY EVENING...
* WHAT...For the Extreme Heat Warning, dangerously hot conditions
with heat index values up to 110 expected. For the Extreme Heat
Watch, dangerously hot conditions with heat index values up to 110
possible.
* WHERE...Portions of DC, central, north central, northeast,
northern, and southern Maryland, and central and northern Virginia.
* WHEN...For the Extreme Heat Warning, from 11 AM to 9 PM EDT
Monday. For the Extreme Heat Watch, from Tuesday morning through
Tuesday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
812 PM EDT Sun Jun 22 2025
MDZ003-VAZ027>031-WVZ052-053-230815-
/O.EXP.KLWX.HT.Y.0001.000000T0000Z-250623T0000Z/
/O.CON.KLWX.XH.W.0001.250623T1500Z-250624T0100Z/
/O.CON.KLWX.XH.A.0002.250624T1500Z-250625T0100Z/
Washington-Shenandoah-Frederick VA-Page-Warren-Clarke-Berkeley-
Jefferson-
812 PM EDT Sun Jun 22 2025
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM TO 9 PM EDT
MONDAY...
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY EVENING...
...HEAT ADVISORY HAS EXPIRED...
* WHAT...For the Extreme Heat Warning, dangerously hot conditions
with heat index values up to 107 expected. For the Extreme Heat
Watch, dangerously hot conditions with heat index values up to 107
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 to 9 PM EDT
Monday. For the Extreme Heat Watch, from Tuesday morning through
Tuesday 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service State College PA
328 PM EDT Sun Jun 22 2025
PAZ027-028-046-049>053-058-231930-
/O.NEW.KCTP.HT.Y.0002.250624T0000Z-250626T0000Z/
/O.EXB.KCTP.XH.W.0001.250623T1400Z-250624T0000Z/
/O.EXT.KCTP.HT.Y.0001.000000T0000Z-250623T1400Z/
Mifflin-Juniata-Southern Lycoming-Union-Snyder-Montour-
Northumberland-Columbia-Schuylkill-
Including the cities of Pottsville, Selinsgrove, Danville,
Berwick, Sunbury, Shamokin, Williamsport, Mifflintown,
Bloomsburg, Lewistown, and Lewisburg
328 PM EDT Sun Jun 22 2025
...HEAT ADVISORY NOW IN EFFECT UNTIL 10 AM EDT MONDAY...
...EXTREME HEAT WARNING IN EFFECT FROM 10 AM TO 8 PM EDT MONDAY...
...HEAT ADVISORY IN EFFECT FROM 8 PM MONDAY TO 8 PM EDT WEDNESDAY...
* WHAT...For the first Heat Advisory, heat index values up to 105.
For the Extreme Heat Warning, dangerously hot conditions with heat
index values up to 107 expected. For the second Heat Advisory,
heat index values up to 102 expected.
* WHERE...Columbia, Juniata, Mifflin, Montour, Northumberland,
Schuylkill, Snyder, Southern Lycoming, and Union Counties.
* WHEN...For the first Heat Advisory, until 10 AM EDT Monday. For
the Extreme Heat Warning, from 10 AM to 8 PM EDT Monday. For the
second Heat Advisory, from 8 PM Monday to 8 PM EDT Wednesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events. Hot temperatures and high
humidity may cause heat illness.
* ADDITIONAL DETAILS...The highest heat index will occur in the
urban valley locations. Temperatures in the 70s overnight will
provide little if any relief.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay out of the sun, and stay in an
air-conditioned room.
Check up on relatives and neighbors, and provide pets with adequate
water and shelter from the sun.
Extreme Heat can be life-threatening among at-risk populations, such
as children, the elderly, and those with pre-existing health
conditions.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service State College PA
328 PM EDT Sun Jun 22 2025
PAZ036-056-057-059-063>066-231930-
/O.CON.KCTP.XH.W.0001.000000T0000Z-250626T0000Z/
Franklin-Perry-Dauphin-Lebanon-Cumberland-Adams-York-Lancaster-
Including the cities of Harrisburg, Newport, Lebanon,
Chambersburg, Lancaster, Hershey, Carlisle, Gettysburg, and York
328 PM EDT Sun Jun 22 2025
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT WEDNESDAY
FOR THE LOWER SUSQUEHANNA VALLEY...
* WHAT...Dangerously hot conditions with heat index values up to 108
for the Lower Susquehanna Valley.
* WHERE...Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon,
Perry, and York Counties.
* WHEN...Until 8 PM EDT Wednesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
* ADDITIONAL DETAILS...Heat index values will be highest on Monday
and Tuesday. The highest heat index will occur in the urban valley
locations. Temperatures in the 70s overnight will provide little
if any relief.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay out of the sun, and stay in an
air-conditioned room.
Check up on relatives and neighbors, and provide pets with adequate
water and shelter from the sun.
Extreme Heat can be life-threatening among at-risk populations, such
as children, the elderly, and those with pre-existing health
conditions.
&&
$$
