Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
Issued by National Weather Service Wakefield VA
1035 AM EDT Wed May 20 2026
DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-202245-
/O.CON.KPHI.HT.Y.0001.000000T0000Z-260521T0000Z/
New Castle-Mercer-Gloucester-Camden-Northwestern Burlington-
Delaware-Philadelphia-Eastern Chester-Eastern Montgomery-Lower
Bucks-
1035 AM EDT Wed May 20 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
* WHAT...Heat index values up to 97.
* 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...Until 8 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
Issued by National Weather Service Wakefield VA
1035 AM EDT Wed May 20 2026
NJZ007>010-PAZ060>062-101-103-105-202245-
/O.CON.KPHI.HT.Y.0001.000000T0000Z-260521T0000Z/
Warren-Morris-Hunterdon-Somerset-Berks-Lehigh-Northampton-Western
Chester-Western Montgomery-Upper Bucks-
1035 AM EDT Wed May 20 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
* WHAT...Heat index values up to 93.
* WHERE...In New Jersey, Morris, Somerset, Warren, and Hunterdon
Counties. In Pennsylvania, Berks, Lehigh, Northampton, Upper
Bucks, Western Chester, and Western Montgomery Counties.
* WHEN...Until 8 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
Issued by National Weather Service Wakefield VA
1035 AM EDT Wed May 20 2026
NJZ012-013-020-027-202245-
/O.CON.KPHI.HT.Y.0001.000000T0000Z-260521T0000Z/
Middlesex-Western Monmouth-Ocean-Southeastern Burlington-
1035 AM EDT Wed May 20 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
* WHAT...Heat index values up to 98.
* WHERE...Western Monmouth, Middlesex, Ocean, and Southeastern
Burlington Counties.
* WHEN...Until 8 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.
&&
$$
MRD
URGENT - WEATHER MESSAGE
National Weather Service New York NY
217 AM EDT Wed May 20 2026
NJZ002-004-006-103>108-202100-
/O.CON.KOKX.HT.Y.0001.000000T0000Z-260521T0000Z/
Western Passaic-Eastern Passaic-Hudson-Western Bergen-Eastern
Bergen-Western Essex-Eastern Essex-Western Union-Eastern Union-
217 AM EDT Wed May 20 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
* WHAT...Heat index values in the middle 90s expected.
* WHERE...Eastern Bergen, Eastern Essex, Eastern Passaic, Eastern
Union, Hudson, Western Bergen, Western Essex, Western Passaic, and
Western Union Counties.
* WHEN...Until 8 PM EDT this evening.
* IMPACTS...Hot temperatures may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Heat Advisory is issued when the combination of heat and humidity
is expected to make it feel like it is 95 to 99 degrees for two or
more consecutive days, or 100 to 104 degrees for any length of time.
Seniors and those with chronic health problems or mental health
conditions are at an increased risk. Homes without air conditioning
can be much hotter than outdoor temperatures.
Use air conditioning to stay cool at home or go to a place that has
air conditioning. If you don`t have home air conditioning, continue
to seek out cool spaces each day as long as it remains hot, and for
a few days after if your home is still hot. Check on vulnerable
friends, family members and neighbors.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! In cases of heat stroke call 9 1 1.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service New York NY
217 AM EDT Wed May 20 2026
NYZ072>075-176-178-202100-
/O.CON.KOKX.HT.Y.0001.000000T0000Z-260521T0000Z/
New York (Manhattan)-Bronx-Richmond (Staten Island)-Kings
(Brooklyn)-Northern Queens-Southern Queens-
217 AM EDT Wed May 20 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
* WHAT...Heat index values in the middle 90s expected.
* WHERE...Bronx, Kings (Brooklyn), New York (Manhattan), Northern
Queens, Richmond (Staten Island), and Southern Queens Counties.
* WHEN...Until 8 PM EDT this evening.
* IMPACTS...Hot temperatures may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
New York City residents should call 3 1 1 to identify cooling center
locations and obtain `Beat the Heat` safety tips.
A Heat Advisory is issued when the combination of heat and humidity
is expected to make it feel like it is 95 to 99 degrees for two or
more consecutive days, or 100 to 104 degrees for any length of time.
Seniors and those with chronic health problems or mental health
conditions are at an increased risk. Homes without air conditioning
can be much hotter than outdoor temperatures.
Use air conditioning to stay cool at home or go to a place that has
air conditioning. If you don`t have home air conditioning, continue
to seek out cool spaces each day as long as it remains hot, and for
a few days after if your home is still hot. Check on vulnerable
friends, family members 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! In cases of heat stroke call 9 1 1.
&&
$$
For more information from the National Weather Service visit
https://weather.gov/nyc
DS
Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
929 AM EDT Wed May 20 2026
ANZ533-534-537-542-543-202130-
/O.CON.KLWX.SC.Y.0088.260520T1900Z-260521T0000Z/
Chesapeake Bay from North Beach to Drum Point MD-
Chesapeake Bay from Drum Point MD to Smith Point VA-
Tidal Potomac from Cobb Island MD to Smith Point VA-
Patuxent River to Broomes Island MD-
Tangier Sound and the inland waters surrounding Bloodsworth
Island-
929 AM EDT Wed May 20 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 8 PM EDT THIS EVENING...
* WHAT...South winds 10 to 15 kt with gusts up to 25 kt expected.
* WHERE...Chesapeake Bay from North Beach MD to Smith Point VA,
Tidal Potomac from Cobb Island MD to Smith Point VA, Patuxent
River to Broomes Island MD, and Tangier Sound and the inland
waters surrounding Bloodsworth Island.
* WHEN...From 3 PM this afternoon to 8 PM EDT this evening.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service New York NY
220 AM EDT Wed May 20 2026
ANZ350-202100-
/O.EXT.KOKX.SC.Y.0059.000000T0000Z-260521T0300Z/
Moriches Inlet NY to Montauk Point NY out 20 NM-
220 AM EDT Wed May 20 2026
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EDT THIS
EVENING...
* WHAT...Southwest winds 10 to 15 kt with gusts up to 25 kt and
seas 4 to 6 feet.
* WHERE...Moriches Inlet NY to Montauk Point NY out 20 NM.
* WHEN...Until 11 PM EDT this evening.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service New York NY
220 AM EDT Wed May 20 2026
ANZ353-355-202100-
/O.CON.KOKX.SC.Y.0059.000000T0000Z-260520T2200Z/
Fire Island Inlet NY to Moriches Inlet NY out 20 NM-
Sandy Hook NJ to Fire Island Inlet NY out 20 NM-
220 AM EDT Wed May 20 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS
EVENING...
* WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt and
seas 4 to 6 feet.
* WHERE...Sandy Hook NJ to Moriches Inlet NY out 20 nm.
* WHEN...Until 6 PM EDT this evening.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
For more details, see the Coastal Waters Forecast from
National Weather Service New York NY, or visit
https://www.weather.gov/okx/marine
Air Quality Alert
MDZ012-015-210400-
Kent MD-Queen Annes-
Including the cities of Chestertown and Centreville
1031 AM EDT Wed May 20 2026
...AIR QUALITY ALERT IN EFFECT FOR WEDNESDAY MAY 20...
The Maryland Department of the Environment has issued a Code Orange
Air Quality Alert for Wednesday for Kent and Queen Annes Counties.
A code orange air quality alert means that air pollution
concentrations within the region may become unhealthy for
sensitive groups. Sensitive groups include children...people
suffering from asthma... heart disease or other lung
diseases...and the elderly. The effects of air pollution can
be minimized by avoiding strenuous activity or exercise outdoors.
For more information on ground-level ozone and fine
particles...visit http://www.mde.maryland.gov/programs/air/
$$
NJZ016>027-210400-
Salem-Gloucester-Camden-Northwestern Burlington-Ocean-Cumberland-
Atlantic-Cape May-Atlantic Coastal Cape May-Coastal Atlantic-
Coastal Ocean-Southeastern Burlington-
Including the cities of Pennsville, Glassboro, Camden, Cherry Hill,
Moorestown, Mount Holly, Jackson, Millville, Hammonton,
Cape May Court House, Ocean City, Atlantic City, Long Beach Island,
and Wharton State Forest
1031 AM EDT Wed May 20 2026
...AIR QUALITY ALERT IN EFFECT FOR WEDNESDAY MAY 20...
The New Jersey Department of Environmental Protection has issued a
Code Orange Air Quality alert for Wednesday for Atlantic, Camden,
Cape May, Cumberland, Ocean, Gloucester, Burlington, Ocean and Salem
Counties.
A code orange air quality alert means that air pollution
concentrations within the region may become unhealthy for
sensitive groups. Sensitive groups include children...people
suffering from asthma... heart disease or other lung
diseases...and the elderly. The effects of air pollution can
be minimized by avoiding strenuous activity or exercise outdoors.
For more information on ground-level ozone and fine
particles...visit http://www.state.nj.us/dep/
$$
MDZ008-508-210400-
Southern Harford-Cecil-
945 AM EDT Wed May 20 2026
...AIR QUALITY ALERT IS IN EFFECT FOR WEDNESDAY MAY 20 2026...
The Maryland Department of the Environment has issued a Code
ORANGE Air Quality Alert Wednesday for Northeast Maryland.
A Code Orange Air Quality Alert means that air pollution
concentrations within the region may become unhealthy for
sensitive groups. Sensitive groups include children, people
suffering from asthma, heart disease or other lung diseases and
the elderly. The effects of air pollution can be minimized by
avoiding strenuous activity or exercise outdoors.
For more information on ground-level ozone
and fine particles visit the web site
mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/index.aspx
$$
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service State College PA
1150 AM EDT Wed May 20 2026
PAZ004>006-010>012-017>019-037-041-042-045-046-049-051-211600-
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield-
Northern Centre-Southern Centre-Tioga-Northern Lycoming-Sullivan-
Southern Clinton-Southern Lycoming-Union-Montour-
1150 AM EDT Wed May 20 2026
This Hazardous Weather Outlook is for central Pennsylvania.
.DAY ONE...This afternoon and tonight.
Scattered showers and thunderstorms are expected for this afternoon.
A few of these storms could be strong and contain damaging wind
gusts.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
The probability for widespread hazardous weather is low.
.SPOTTER INFORMATION STATEMENT...
Spotters are encouraged to report significant hazardous weather.
$$
Hazardous Weather Outlook
National Weather Service State College PA
1150 AM EDT Wed May 20 2026
PAZ024>028-033>036-050-052-053-056>059-063>066-211600-
Cambria-Blair-Huntingdon-Mifflin-Juniata-Somerset-Bedford-Fulton-
Franklin-Snyder-Northumberland-Columbia-Perry-Dauphin-Schuylkill-
Lebanon-Cumberland-Adams-York-Lancaster-
1150 AM EDT Wed May 20 2026
This Hazardous Weather Outlook is for central Pennsylvania.
.DAY ONE...This afternoon and tonight.
Scattered strong to severe storms are expected today and could
contain damaging winds this afternoon ahead of and along the cold
front.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
The probability for widespread hazardous weather is low.
.SPOTTER INFORMATION STATEMENT...
Spotters are encouraged to report significant hazardous weather.
$$
Hazardous Weather Outlook
National Weather Service Baltimore MD/Washington DC
454 AM EDT Wed May 20 2026
ANZ530>543-DCZ001-MDZ008-011-013-014-016>018-504-506-508-
VAZ053>057-527-210900-
Chesapeake Bay north of Pooles Island MD-
Chesapeake Bay from Pooles Island to Sandy Point MD-
Chesapeake Bay from Sandy Point to North Beach MD-
Chesapeake Bay from North Beach to Drum Point MD-
Chesapeake Bay from Drum Point MD to Smith Point VA-
Tidal Potomac from Key Bridge to Indian Head MD-
Tidal Potomac from Indian Head to Cobb Island MD-
Tidal Potomac from Cobb Island MD to Smith Point VA-
Patapsco River including Baltimore Harbor-
Chester River to Queenstown MD-Eastern Bay-
Choptank River to Cambridge MD and the Little Choptank River-
Patuxent River to Broomes Island MD-
Tangier Sound and the inland waters surrounding Bloodsworth
Island-District of Columbia-Cecil-Southern Baltimore-
Prince Georges-Anne Arundel-Charles-St. Marys-Calvert-
Central and Southeast Montgomery-Central and Southeast Howard-
Southeast Harford-Fairfax-Arlington/Falls Church/Alexandria-
Stafford-Spotsylvania-King George-
Central and Southeast Prince William/Manassas/Manassas Park-
454 AM EDT Wed May 20 2026
This Hazardous Weather Outlook is for the Maryland portion of the
Chesapeake Bay, Tidal Potomac River, and I-95 corridor through
central Maryland, northern Virginia, and District of Columbia.
.DAY ONE...Today and Tonight
Scattered severe thunderstorms capable of producing damaging winds
and large hail are possible Wednesday afternoon and evening.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service Baltimore MD/Washington DC
454 AM EDT Wed May 20 2026
MDZ003>006-503-505-507-VAZ025>031-036>040-050-051-501-502-505>508-
526-WVZ050>053-055-210900-
Washington-Frederick-Carroll-Northern Baltimore-
Northwest Montgomery-Northwest Howard-Northwest Harford-Augusta-
Rockingham-Shenandoah-Page-Warren-Clarke-Nelson-Albemarle-Greene-
Madison-Rappahannock-Orange-Culpeper-Northern Fauquier-
Southern Fauquier-Western Loudoun-Eastern Loudoun-
Northern Virginia Blue Ridge-Central Virginia Blue Ridge-
Northwest Prince William-Hampshire-Morgan-Berkeley-Jefferson-
Hardy-
454 AM EDT Wed May 20 2026
This Hazardous Weather Outlook is for portions of eastern West
Virginia, northern and central Virginia, and central and western
Maryland.
.DAY ONE...Today and Tonight
Scattered severe thunderstorms capable of producing damaging winds
and large hail are possible this afternoon and evening.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service Wakefield VA
410 AM EDT Wed May 20 2026
MDZ025-VAZ099-100-210815-
Maryland Beaches-Accomack-Northampton-
410 AM EDT Wed May 20 2026
...MODERATE RIP CURRENT RISK IN EFFECT THROUGH THIS EVENING...
This Hazardous Weather Outlook is for southeast Maryland, eastern
Virginia and southeast Virginia.
.DAY ONE...Today and tonight.
Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.
MODERATE RIP CURRENT RISK.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
NWS/AKQ
Hazardous Weather Outlook
National Weather Service New York NY
231 AM EDT Wed May 20 2026
ANZ331-332-335-338-340-350-353-355-380-383-385-210645-
Long Island Sound East of New Haven CT/Port Jefferson NY to the
Mouth of the Connecticut River-
Long Island Sound East of the Mouth of the Connecticut River-
Long Island Sound West of New Haven CT/Port Jefferson NY-
New York Harbor-Peconic and Gardiners Bays-
Moriches Inlet NY to Montauk Point NY out 20 NM-
Fire Island Inlet NY to Moriches Inlet NY out 20 NM-
Sandy Hook NJ to Fire Island Inlet NY out 20 NM-
Waters from Moriches Inlet NY to Montauk Point NY from 20 to 60 nm-
Waters from Fire Island Inlet NY to Moriches Inlet NY from 20 to
60 nm-
Waters from Sandy Hook NJ to Fire Island Inlet NY from 20 to 60 nm-
231 AM EDT Wed May 20 2026
This Hazardous Weather Outlook is for Atlantic coastal waters.
.DAY ONE...Today and tonight.
Thunderstorm development is expected this afternoon and evening with
a cold frontal passage. A few of the storms could produce winds in
excess of 35 kt.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Hazardous weather is not expected at this time that would meet NWS
warning criteria.
.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.
$$
Hazardous Weather Outlook
National Weather Service New York NY
231 AM EDT Wed May 20 2026
ANZ345-CTZ005>012-NYZ067>071-078>081-177-179-210645-
South Shore Bays from Jones Inlet through Shinnecock Bay-
Northern Fairfield-Northern New Haven-Northern Middlesex-
Northern New London-Southern Fairfield-Southern New Haven-
Southern Middlesex-Southern New London-Orange-Putnam-Rockland-
Northern Westchester-Southern Westchester-Northwest Suffolk-
Northeast Suffolk-Southwest Suffolk-Southeast Suffolk-
Northern Nassau-Southern Nassau-
231 AM EDT Wed May 20 2026
This Hazardous Weather Outlook is for Atlantic coastal waters,
southern Connecticut and southeast New York.
.DAY ONE...Today and tonight.
Thunderstorm development is expected this afternoon and evening with
a cold frontal passage. A severe thunderstorm is possible, with
damaging winds the main threat.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Hazardous weather is not expected at this time that would meet NWS
warning criteria.
.SPOTTER INFORMATION STATEMENT...
Spotter activation may be needed.
&&
This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.
Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.
$$
Hazardous Weather Outlook
National Weather Service New York NY
231 AM EDT Wed May 20 2026
NJZ002-004-006-103>108-NYZ072>075-176-178-210645-
Western Passaic-Eastern Passaic-Hudson-Western Bergen-Eastern Bergen-
Western Essex-Eastern Essex-Western Union-Eastern Union-
New York (Manhattan)-Bronx-Richmond (Staten Island)-Kings (Brooklyn)-
Northern Queens-Southern Queens-
231 AM EDT Wed May 20 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
This Hazardous Weather Outlook is for northeast New Jersey and
southeast New York.
.DAY ONE...Today and tonight.
Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.
Heat Advisory.
In addition, thunderstorm development is expected this afternoon and
evening with a cold frontal passage. A severe thunderstorm is
possible, with damaging winds the main threat.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Hazardous weather is not expected at this time that would meet NWS
warning criteria.
.SPOTTER INFORMATION STATEMENT...
Spotter activation may be needed.
&&
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.
$$
