Extreme Heat Watch
URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
357 AM EDT Sun Jun 28 2026
DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-282100-
/O.NEW.KPHI.XH.A.0001.260701T1600Z-260705T0000Z/
New Castle-Mercer-Gloucester-Camden-Northwestern Burlington-
Delaware-Philadelphia-Eastern Chester-Eastern Montgomery-Lower
Bucks-
Including the cities of Glassboro, Moorestown, Media, Lansdale,
West Chester, Norristown, Morrisville, Doylestown, Philadelphia,
Wilmington, Trenton, Kennett Square, Mount Holly, Camden, and
Cherry Hill
357 AM EDT Sun Jun 28 2026
...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
SATURDAY EVENING...
* WHAT...Dangerously hot conditions with heat index values up to 110
degrees possible during the daytime hours.
* WHERE...In Delaware, New Castle County. In New Jersey, Mercer,
Camden, Gloucester, and Northwestern Burlington Counties. In
Pennsylvania, Delaware, Eastern Chester, Eastern Montgomery, Lower
Bucks, and Philadelphia Counties.
* WHEN...From Wednesday afternoon through Saturday evening. The
hottest conditions are forecast to occur Thursday through Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
* ADDITIONAL DETAILS...Very warm low temperatures in the mid 70s to
low 80s at night will not offer any relief from the heat. This
combined with multiple days of near record breaking temperatures
will exacerbate the impacts from the heat and humidity.
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.
If you do not have air conditioning in your home or lack shelter,
you can call 211 or visit your county or state health department
website for assistance locating appropriate shelter from the heat.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
357 AM EDT Sun Jun 28 2026
NJZ001-007>009-PAZ060>062-101-103-105-282100-
/O.NEW.KPHI.XH.A.0001.260701T1600Z-260705T0000Z/
Sussex-Warren-Morris-Hunterdon-Berks-Lehigh-Northampton-Western
Chester-Western Montgomery-Upper Bucks-
Including the cities of Chalfont, Washington, Perkasie, Easton,
Honey Brook, Reading, Allentown, Newton, Morristown, Oxford,
Flemington, Collegeville, Pottstown, and Bethlehem
357 AM EDT Sun Jun 28 2026
...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
SATURDAY EVENING...
* WHAT...Dangerously hot conditions with heat index values up to 108
degrees possible during the daytime hours.
* WHERE...In New Jersey, Morris, Sussex, Warren, and Hunterdon
Counties. In Pennsylvania, Berks, Lehigh, Northampton, Upper
Bucks, Western Chester, and Western Montgomery Counties.
* WHEN...From Wednesday afternoon through Saturday evening. The
hottest conditions are forecast to occur Thursday through Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
* ADDITIONAL DETAILS...Very warm low temperatures in the low to mid
70s at night will not offer any relief from the heat. This
combined with multiple days of near record breaking temperatures
will exacerbate the impacts from the heat and humidity.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
357 AM EDT Sun Jun 28 2026
NJZ010-012>014-020-027-282100-
/O.NEW.KPHI.XH.A.0001.260701T1600Z-260705T0000Z/
Somerset-Middlesex-Western Monmouth-Eastern Monmouth-Ocean-
Southeastern Burlington-
Including the cities of Freehold, Wharton State Forest,
Somerville, New Brunswick, Sandy Hook, and Jackson
357 AM EDT Sun Jun 28 2026
...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
SATURDAY EVENING...
* WHAT...Dangerously hot conditions with heat index values up to 110
degrees possible during the daytime hours.
* WHERE...Eastern Monmouth, Western Monmouth, Middlesex, Somerset,
Ocean, and Southeastern Burlington Counties.
* WHEN...From Wednesday afternoon through Saturday evening. The
hottest conditions are forecast to occur Thursday through Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
* ADDITIONAL DETAILS...Very warm low temperatures in the mid 70s to
low 80s at night will not offer any relief from the heat. This
combined with multiple days of near record breaking temperatures
will exacerbate the impacts from the heat and humidity.
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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
357 AM EDT Sun Jun 28 2026
NJZ016-021>023-282100-
/O.NEW.KPHI.XH.A.0001.260701T1600Z-260705T0000Z/
Salem-Cumberland-Atlantic-Cape May-
Including the cities of Pennsville, Cape May Court House,
Hammonton, and Millville
357 AM EDT Sun Jun 28 2026
...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
SATURDAY EVENING...
* WHAT...Dangerously hot conditions with heat index values up to 110
degrees possible during the daytime hours.
* WHERE...Atlantic, Cape May, Cumberland, and Salem Counties.
* WHEN...From Wednesday afternoon through Saturday evening. The
hottest conditions are forecast to occur Thursday through Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
* ADDITIONAL DETAILS...Very warm low temperatures in the mid 70s to
low 80s at night will not offer any relief from the heat. This
combined with multiple days of near record breaking temperatures
will exacerbate the impacts from the heat and humidity.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
357 AM EDT Sun Jun 28 2026
NJZ024>026-282100-
/O.NEW.KPHI.XH.A.0001.260701T1600Z-260705T0000Z/
Atlantic Coastal Cape May-Coastal Atlantic-Coastal Ocean-
Including the cities of Atlantic City, Ocean City, and Long Beach
Island
357 AM EDT Sun Jun 28 2026
...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
SATURDAY EVENING...
* WHAT...Dangerously hot conditions with heat index values up to 105
degrees possible during the daytime hours.
* WHERE...Atlantic Coastal Cape May, Coastal Atlantic, and Coastal
Ocean Counties.
* WHEN...From Wednesday afternoon through Saturday evening. The
hottest conditions are forecast to occur Thursday through Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
* ADDITIONAL DETAILS...Very warm low temperatures in the low to mid
70s at night will not offer any relief from the heat. This
combined with multiple days of near record breaking temperatures
will exacerbate the impacts from the heat and humidity.
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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
357 AM EDT Sun Jun 28 2026
PAZ054-055-282100-
/O.NEW.KPHI.XH.A.0001.260701T1600Z-260705T0000Z/
Carbon-Monroe-
Including the cities of Jim Thorpe and Stroudsburg
357 AM EDT Sun Jun 28 2026
...EXTREME HEAT WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
SATURDAY EVENING...
* WHAT...Dangerously hot conditions with heat index values up to 105
degrees possible at lower elevations during the daytime hours.
Heat indices up to 100 degrees possible across the Pocono Plateau.
* WHERE...Carbon and Monroe Counties.
* WHEN...From Wednesday afternoon through Saturday evening. The
hottest conditions are forecast to occur Thursday through Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
* ADDITIONAL DETAILS...Very warm low temperatures in the low to mid
70s at night will not offer much relief from the heat. This
combined with multiple days of near record breaking temperatures
will exacerbate the impacts from the heat and humidity.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.
&&
$$
Staarmann
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Baltimore MD/Washington DC
1006 AM EDT Sun Jun 28 2026
ANZ530>543-DCZ001-MDZ008-011-013-014-016>018-504-506-508-
VAZ053>057-527-291415-
Chesapeake Bay north of Pooles Island MD-
Chesapeake Bay from Pooles Island to Sandy Point MD-
Chesapeake Bay from Sandy Point to North Beach MD-
Chesapeake Bay from North Beach to Drum Point MD-
Chesapeake Bay from Drum Point MD to Smith Point VA-
Tidal Potomac from Key Bridge to Indian Head MD-
Tidal Potomac from Indian Head to Cobb Island MD-
Tidal Potomac from Cobb Island MD to Smith Point VA-
Patapsco River including Baltimore Harbor-
Chester River to Queenstown MD-Eastern Bay-
Choptank River to Cambridge MD and the Little Choptank River-
Patuxent River to Broomes Island MD-
Tangier Sound and the inland waters surrounding Bloodsworth
Island-District of Columbia-Cecil-Southern Baltimore-
Prince Georges-Anne Arundel-Charles-St. Marys-Calvert-
Central and Southeast Montgomery-Central and Southeast Howard-
Southeast Harford-Fairfax-Arlington/Falls Church/Alexandria-
Stafford-Spotsylvania-King George-
Central and Southeast Prince William/Manassas/Manassas Park-
1006 AM EDT Sun Jun 28 2026
This Hazardous Weather Outlook is for the Maryland portion of the
Chesapeake Bay, Tidal Potomac River, and I-95 corridor through
central Maryland, northern Virginia, and District of Columbia.
.DAY ONE...Today and Tonight
An instance or two of flooding is possible across portions of
Fairfax County into Arlington, Falls Church, Alexandria, and
Washington DC through midday due to slow moving heavy showers and
possible thunderstorms.
.DAYS TWO THROUGH SEVEN...Monday through Saturday
There is a significant heat risk the second half of next week.
Air temperatures of 95 to 105 combined with increasing humidity
may result in heat index values of 105 to 110 each afternoon
Wednesday through Friday.
Severe thunderstorms are possible later next week, particularly
during the afternoon and evening hours on Friday and Saturday.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
508 AM EDT Sun Jun 28 2026
MDZ012-015-019-020-290915-
Kent MD-Queen Annes-Talbot-Caroline-
508 AM EDT Sun Jun 28 2026
This Hazardous Weather Outlook is for northeast Maryland.
.DAY ONE...Today and tonight.
Hazardous weather is not expected at this time.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
Very hot and humid conditions will develop starting Wednesday,
peaking Thursday through Saturday with heat indices as high as 110
degrees possible. High temperatures in the low 100s are forecast.
There will also be a threat of severe thunderstorms starting Friday
through the holiday weekend.
.SPOTTER INFORMATION STATEMENT...
Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.
$$
Staarmann
Hazardous Weather Outlook
National Weather Service Wakefield VA
459 AM EDT Sun Jun 28 2026
MDZ021>025-VAZ048-061-062-064-068-069-075>078-081>086-089-090-099-
100-509>525-290900-
Dorchester-Wicomico-Somerset-Inland Worcester-Maryland Beaches-
Fluvanna-Cumberland-Goochland-Caroline-Amelia-Powhatan-Westmoreland-
Richmond-Northumberland-Lancaster-
Prince George (including Hopewell and Petersburg)-Charles City-
New Kent-Gloucester-Middlesex-Mathews-Surry-James City-Accomack-
Northampton-Western Louisa-Eastern Louisa-Western Hanover-
Eastern Hanover-Western Chesterfield-
Eastern Chesterfield (Including Col. Heights)-
Western Henrico (Including the City of Richmond)-Eastern Henrico-
Western King William-Eastern King William-Western King and Queen-
Eastern King and Queen-Western Essex-Eastern Essex-York-Newport News-
Hampton/Poquoson-
459 AM EDT Sun Jun 28 2026
This Hazardous Weather Outlook is for southeast Maryland, central
Virginia, east central Virginia, eastern Virginia, north central
Virginia, south central Virginia and southeast Virginia.
.DAY ONE...Today and tonight.
Locally heavy rainfall may produce isolated instances of flash
flooding this afternoon.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
Very hot conditions are expected later in the upcoming week, with
heat indices of 105 to 110 likely Thursday through Saturday.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service State College PA
427 AM EDT Sun Jun 28 2026
PAZ004>006-010>012-017-018-024-033-037-041-042-290830-
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield-
Northern Centre-Cambria-Somerset-Tioga-Northern Lycoming-Sullivan-
427 AM EDT Sun Jun 28 2026
This Hazardous Weather Outlook is for central Pennsylvania.
.DAY ONE...Today and tonight.
The probability of widespread hazardous weather is low.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
Dangerous heat is possible Tuesday through Friday with maximum heat
indices of 95 to 105 degrees.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service State College PA
427 AM EDT Sun Jun 28 2026
PAZ019-025>028-034>036-045-046-049>053-056>059-063>066-290830-
Southern Centre-Blair-Huntingdon-Mifflin-Juniata-Bedford-Fulton-
Franklin-Southern Clinton-Southern Lycoming-Union-Snyder-Montour-
Northumberland-Columbia-Perry-Dauphin-Schuylkill-Lebanon-Cumberland-
Adams-York-Lancaster-
427 AM EDT Sun Jun 28 2026
This Hazardous Weather Outlook is for central Pennsylvania.
.DAY ONE...Today and tonight.
The probability of widespread hazardous weather is low.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
Prolonged dangerous to extreme heat is likely Wednesday through
Saturday with maximum heat indices of 100 to 110 degrees.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
MRS
Hazardous Weather Outlook
National Weather Service New York NY
245 AM EDT Sun Jun 28 2026
CTZ005>012-NJZ002-004-006-103>108-NYZ067>075-078>081-176>179-290645-
Northern Fairfield-Northern New Haven-Northern Middlesex-
Northern New London-Southern Fairfield-Southern New Haven-
Southern Middlesex-Southern New London-Western Passaic-
Eastern Passaic-Hudson-Western Bergen-Eastern Bergen-Western Essex-
Eastern Essex-Western Union-Eastern Union-Orange-Putnam-Rockland-
Northern Westchester-Southern Westchester-New York (Manhattan)-Bronx-
Richmond (Staten Island)-Kings (Brooklyn)-Northwest Suffolk-
Northeast Suffolk-Southwest Suffolk-Southeast Suffolk-
Northern Queens-Northern Nassau-Southern Queens-Southern Nassau-
245 AM EDT Sun Jun 28 2026
This Hazardous Weather Outlook is for southern Connecticut,
northeast New Jersey and southeast New York.
.DAY ONE...Today and tonight.
Hazardous weather is not expected at this time.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
The combination of heat and humidity from Wednesday through Saturday
could lead to heat index values from 95 to 110 degrees. These values
would prompt the issuances of heat headlines over subsequent
forecast packages.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
&&
This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.
Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.
$$
Hazardous Weather Outlook
National Weather Service Binghamton NY
109 AM EDT Sun Jun 28 2026
NYZ009-015>018-022>025-036-037-044>046-055>057-062-PAZ038>040-043-
044-047-048-072-290515-
Northern Oneida-Yates-Seneca-Southern Cayuga-Onondaga-Steuben-
Schuyler-Chemung-Tompkins-Madison-Southern Oneida-Cortland-Chenango-
Otsego-Tioga-Broome-Delaware-Sullivan-Bradford-Susquehanna-
Northern Wayne-Wyoming-Lackawanna-Luzerne-Pike-Southern Wayne-
109 AM EDT Sun Jun 28 2026
This Hazardous Weather Outlook is for central New York and
northeast Pennsylvania.
.DAY ONE...Today and tonight.
Hazardous weather is not expected at this time.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
Heat and humidity will be building Tuesday into the weekend with
daytime highs temperatures in the 90s and humid conditions resulting
in heat index values around 100 degrees each afternoon.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Short Term Forecast
Short Term Forecast
National Weather Service Baltimore MD/Washington DC
1000 AM EDT Sun Jun 28 2026
VAZ053-506-281430-
Fairfax-Eastern Loudoun-
1000 AM EDT Sun Jun 28 2026
.NOW...
At 1000 AM EDT, Doppler radar indicated a line of showers along a
line extending from Arcola to near Oakton. These showers were nearly
stationary.
Heavy rainfall around one inch per hour is occurring and may lead to
local ponding on roads, and rises on small streams.
Locations impacted include...
Reston, South Riding, Herndon, Vienna, Brambleton, Pimmit Hills,
Dulles International Airport, Oakton, Chantilly, Tysons Corner, Wolf
Trap, Arcola, and Dunn Loring.
LAT...LON 3898 7746 3890 7719 3886 7736 3895 7760
TIME...MOT...LOC 1400Z 265DEG 1KT 3895 7750 3890 7734
$$
DHOF
