Alert archive / New Jersey / Heat Advisories in 2026

Heat Advisory 2, NWS Philadelphia/Mount Holly

June 10, 2026New Castle County, Delaware; 12 counties in New Jersey; 8 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this heat advisory at Jun 10, 2026, 2:24 AM EDT for New Castle County, Delaware; 12 counties in New Jersey; 8 counties in Pennsylvania. It took effect at Jun 11, 2026, 11:00 AM EDT. It was in force for 33 hr.

The area

The counties it named.

The facts

Issued
Jun 10, 2026, 2:24 AM EDT (06:24 UTC)
In effect from
Jun 11, 2026, 11:00 AM EDT
Expired
Jun 12, 2026, 8:00 PM EDT
In force
33 hr
Issued by
NWS Philadelphia/Mount Holly
All 21 counties

New Castle County, DE, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Berks County, PA, Bucks County, PA, Chester County, PA, Delaware County, PA, Lehigh County, PA, Montgomery County, PA, Northampton County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 64 km from the middle of the area, began a volume at 06:25 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 6.4 hours before the alert went out and 192 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 00:00Z on 2026-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 00:00Z on 2026-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1966 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
120 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

054 
WWUS71 KPHI 100624
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
224 AM EDT Wed Jun 10 2026

DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-102000-
/O.NEW.KPHI.HT.Y.0002.260611T1500Z-260613T0000Z/
New Castle-Mercer-Gloucester-Camden-Northwestern Burlington-
Delaware-Philadelphia-Eastern Chester-Eastern Montgomery-Lower
Bucks-
Including the cities of Kennett Square, Doylestown, Media,
Wilmington, Mount Holly, Lansdale, Morrisville, Norristown,
Glassboro, Cherry Hill, Philadelphia, Camden, West Chester,
Trenton, and Moorestown
224 AM EDT Wed Jun 10 2026

...HEAT ADVISORY IN EFFECT FROM 11 AM THURSDAY TO 8 PM EDT FRIDAY...

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

* 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 11 AM Thursday to 8 PM EDT Friday.

* 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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

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.

&&

$$

NJZ001-007>010-012-013-020-027-102000-
/O.NEW.KPHI.HT.Y.0002.260611T1500Z-260613T0000Z/
Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-Western
Monmouth-Ocean-Southeastern Burlington-
Including the cities of New Brunswick, Wharton State Forest,
Morristown, Jackson, Freehold, Washington, Newton, Flemington,
and Somerville
224 AM EDT Wed Jun 10 2026

...HEAT ADVISORY IN EFFECT FROM 11 AM THURSDAY TO 8 PM EDT FRIDAY...

* WHAT...Heat index values up to 102 degrees expected.

* WHERE...Western Monmouth, Middlesex, Morris, Somerset, Sussex, 
  Warren, Hunterdon, Ocean, and Southeastern Burlington Counties.

* WHEN...From 11 AM Thursday to 8 PM EDT Friday.

* 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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

&&

$$

NJZ014-102000-
/O.NEW.KPHI.HT.Y.0002.260611T1500Z-260612T0000Z/
Eastern Monmouth-
Including the cities of Sandy Hook
224 AM EDT Wed Jun 10 2026

...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT THURSDAY...

* WHAT...Heat index values up to 100 degrees expected.

* WHERE...Eastern Monmouth County.

* WHEN...From 11 AM to 8 PM EDT Thursday.

* 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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

&&

$$

PAZ060>062-101-103-105-102000-
/O.NEW.KPHI.HT.Y.0002.260611T1500Z-260613T0000Z/
Berks-Lehigh-Northampton-Western Chester-Western Montgomery-Upper
Bucks-
Including the cities of Collegeville, Perkasie, Oxford, Honey
Brook, Allentown, Bethlehem, Reading, Chalfont, Easton, and
Pottstown
224 AM EDT Wed Jun 10 2026

...HEAT ADVISORY IN EFFECT FROM 11 AM THURSDAY TO 8 PM EDT FRIDAY...

* WHAT...Heat index values up to 101 degrees expected.

* WHERE...Berks, Lehigh, Northampton, Upper Bucks, Western Chester, 
  and Western Montgomery Counties.

* WHEN...From 11 AM Thursday to 8 PM EDT Friday.

* 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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

&&

$$

Staarmann
6 follow-up statements
125 
WWUS71 KPHI 101836
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
236 PM EDT Wed Jun 10 2026

DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-110900-
/O.CON.KPHI.HT.Y.0002.260611T1500Z-260613T0000Z/
New Castle-Mercer-Gloucester-Camden-Northwestern Burlington-
Delaware-Philadelphia-Eastern Chester-Eastern Montgomery-Lower
Bucks-
Including the cities of Trenton, Doylestown, Moorestown, Camden,
Kennett Square, Morrisville, Glassboro, Media, Lansdale, Mount
Holly, West Chester, Norristown, Wilmington, Cherry Hill, and
Philadelphia
236 PM EDT Wed Jun 10 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THURSDAY TO 8 PM EDT 
FRIDAY...

* WHAT...Heat index values up to 104 degrees expected.

* 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 11 AM Thursday to 8 PM EDT Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses.

* ADDITIONAL DETAILS...Some showers and thunderstorms later Thursday 
  afternoon and again later Friday afternoon will provide some local 
  relief from the heat, however it will still remain very humid. It 
  will then turn much less humid this weekend in the wake of a cold 
  front.

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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

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.

&&

$$

NJZ001-007>010-012-013-020-027-110900-
/O.CON.KPHI.HT.Y.0002.260611T1500Z-260613T0000Z/
Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-Western
Monmouth-Ocean-Southeastern Burlington-
Including the cities of Somerville, Freehold, Newton, Washington,
Morristown, Jackson, Wharton State Forest, Flemington, and New
Brunswick
236 PM EDT Wed Jun 10 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THURSDAY TO 8 PM EDT 
FRIDAY...

* WHAT...Heat index values up to 102 degrees expected.

* WHERE...Western Monmouth, Middlesex, Morris, Somerset, Sussex, 
  Warren, Hunterdon, Ocean, and Southeastern Burlington Counties.

* WHEN...From 11 AM Thursday to 8 PM EDT Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses.

* ADDITIONAL DETAILS...Some showers and thunderstorms later Thursday 
  afternoon and again later Friday afternoon will provide some local 
  relief from the heat, however it will still remain very humid. It 
  will then turn much less humid this weekend in the wake of a cold 
  front.

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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

&&

$$

NJZ014-110900-
/O.CON.KPHI.HT.Y.0002.260611T1500Z-260612T0000Z/
Eastern Monmouth-
Including the cities of Sandy Hook
236 PM EDT Wed Jun 10 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT THURSDAY...

* WHAT...Heat index values up to 100 degrees expected.

* WHERE...Eastern Monmouth County.

* WHEN...From 11 AM to 8 PM EDT Thursday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses.

* ADDITIONAL DETAILS...Some showers and thunderstorms late Thursday 
  afternoon and again late Friday afternoon will provide some local 
  relief from the heat, however it will still remain very humid. It 
  will then turn much less humid this weekend in the wake of a cold 
  front.

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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

&&

$$

PAZ060>062-101-103-105-110900-
/O.CON.KPHI.HT.Y.0002.260611T1500Z-260613T0000Z/
Berks-Lehigh-Northampton-Western Chester-Western Montgomery-Upper
Bucks-
Including the cities of Honey Brook, Oxford, Chalfont, Reading,
Collegeville, Perkasie, Pottstown, Easton, Bethlehem, and
Allentown
236 PM EDT Wed Jun 10 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THURSDAY TO 8 PM EDT 
FRIDAY...

* WHAT...Heat index values up to 102 degrees expected.

* WHERE...Berks, Lehigh, Northampton, Upper Bucks, Western Chester, 
  and Western Montgomery Counties.

* WHEN...From 11 AM Thursday to 8 PM EDT Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses.

* ADDITIONAL DETAILS...Some showers and thunderstorms later Thursday 
  afternoon and again later Friday afternoon will provide some local 
  relief from the heat, however it will still remain very humid. It 
  will then turn much less humid this weekend in the wake of a cold 
  front.

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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

&&

$$

Gorse
779 
WWUS71 KPHI 110651
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
251 AM EDT Thu Jun 11 2026

NJZ014-112000-
/O.EXT.KPHI.HT.Y.0002.260611T1500Z-260613T0000Z/
Eastern Monmouth-
Including the cities of Sandy Hook
251 AM EDT Thu Jun 11 2026

...HEAT ADVISORY NOW IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT 
FRIDAY...

* WHAT...Heat index values up to 102 degrees expected.

* WHERE...Eastern Monmouth County.

* WHEN...From 11 AM this morning to 8 PM EDT Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses.

* ADDITIONAL DETAILS...Some showers and thunderstorms late this 
  afternoon and again late Friday afternoon will provide some local 
  relief from the heat, however it will still remain very humid. It 
  will then turn much less humid this weekend in the wake of a cold 
  front.

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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

&&

$$

DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-112000-
/O.CON.KPHI.HT.Y.0002.260611T1500Z-260613T0000Z/
New Castle-Mercer-Gloucester-Camden-Northwestern Burlington-
Delaware-Philadelphia-Eastern Chester-Eastern Montgomery-Lower
Bucks-
Including the cities of Moorestown, West Chester, Norristown,
Trenton, Wilmington, Mount Holly, Glassboro, Doylestown,
Morrisville, Cherry Hill, Media, Philadelphia, Lansdale, Camden,
and Kennett Square
251 AM EDT Thu Jun 11 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM 
EDT FRIDAY...

* WHAT...Heat index values up to 104 degrees expected.

* 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 11 AM this morning to 8 PM EDT Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses.

* ADDITIONAL DETAILS...Some showers and thunderstorms late this 
  afternoon and again late Friday afternoon will provide some local 
  relief from the heat, however it will still remain very humid. It 
  will then turn much less humid this weekend in the wake of a cold 
  front.

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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

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.

&&

$$

NJZ001-007>010-012-013-020-027-112000-
/O.CON.KPHI.HT.Y.0002.260611T1500Z-260613T0000Z/
Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-Western
Monmouth-Ocean-Southeastern Burlington-
Including the cities of Morristown, Wharton State Forest,
Jackson, Washington, New Brunswick, Somerville, Newton, Freehold,
and Flemington
251 AM EDT Thu Jun 11 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM 
EDT FRIDAY...

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

* WHERE...Western Monmouth, Middlesex, Morris, Somerset, Sussex, 
  Warren, Hunterdon, Ocean, and Southeastern Burlington Counties.

* WHEN...From 11 AM this morning to 8 PM EDT Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses.

* ADDITIONAL DETAILS...Some showers and thunderstorms late this 
  afternoon and again late Friday afternoon will provide some local 
  relief from the heat, however it will still remain very humid. It 
  will then turn much less humid this weekend in the wake of a cold 
  front.

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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

&&

$$

PAZ060>062-101-103-105-112000-
/O.CON.KPHI.HT.Y.0002.260611T1500Z-260613T0000Z/
Berks-Lehigh-Northampton-Western Chester-Western Montgomery-Upper
Bucks-
Including the cities of Oxford, Reading, Perkasie, Collegeville,
Chalfont, Bethlehem, Pottstown, Easton, Honey Brook, and
Allentown
251 AM EDT Thu Jun 11 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM 
EDT FRIDAY...

* WHAT...Heat index values up to 102 degrees expected.

* WHERE...Berks, Lehigh, Northampton, Upper Bucks, Western Chester, 
  and Western Montgomery Counties.

* WHEN...From 11 AM this morning to 8 PM EDT Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses.

* ADDITIONAL DETAILS...Some showers and thunderstorms late this 
  afternoon and again late Friday afternoon will provide some local 
  relief from the heat, however it will still remain very humid. It 
  will then turn much less humid this weekend in the wake of a cold 
  front.

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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

&&

$$

Staarmann
056 
WWUS71 KPHI 111902
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
302 PM EDT Thu Jun 11 2026

DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-120915-
/O.CON.KPHI.HT.Y.0002.000000T0000Z-260613T0000Z/
New Castle-Mercer-Gloucester-Camden-Northwestern Burlington-
Delaware-Philadelphia-Eastern Chester-Eastern Montgomery-Lower
Bucks-
Including the cities of Media, Kennett Square, Lansdale, West
Chester, Mount Holly, Norristown, Cherry Hill, Trenton,
Doylestown, Moorestown, Camden, Wilmington, Philadelphia,
Glassboro, and Morrisville
302 PM EDT Thu Jun 11 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT FRIDAY...

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

* 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 Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses.

* ADDITIONAL DETAILS...Some showers and thunderstorms late Friday 
  afternoon will provide some local relief from the heat, however it 
  will still remain very humid. It will then turn much less humid 
  this weekend in the wake of a cold front.

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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

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.

&&

$$

NJZ001-007>010-012-013-020-027-120915-
/O.CON.KPHI.HT.Y.0002.000000T0000Z-260613T0000Z/
Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-Western
Monmouth-Ocean-Southeastern Burlington-
Including the cities of Washington, Jackson, New Brunswick,
Wharton State Forest, Newton, Freehold, Flemington, Morristown,
and Somerville
302 PM EDT Thu Jun 11 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT FRIDAY...

* WHAT...Heat index values up to 102 degrees expected.

* WHERE...Western Monmouth, Middlesex, Morris, Somerset, Sussex, 
  Warren, Hunterdon, Ocean, and Southeastern Burlington Counties.

* WHEN...Until 8 PM EDT Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses.

* ADDITIONAL DETAILS...Some showers and thunderstorms late Friday 
  afternoon will provide some local relief from the heat, however it 
  will still remain very humid. It will then turn much less humid 
  this weekend in the wake of a cold front.

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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

&&

$$

NJZ014-120915-
/O.CON.KPHI.HT.Y.0002.000000T0000Z-260613T0000Z/
Eastern Monmouth-
Including the cities of Sandy Hook
302 PM EDT Thu Jun 11 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT FRIDAY...

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

* WHERE...Eastern Monmouth County.

* WHEN...Until 8 PM EDT Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses.

* ADDITIONAL DETAILS...Some showers and thunderstorms late Friday 
  afternoon will provide some local relief from the heat, however it 
  will still remain very humid. It will then turn much less humid 
  this weekend in the wake of a cold front.

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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

&&

$$

PAZ060>062-101-103-105-120915-
/O.CON.KPHI.HT.Y.0002.000000T0000Z-260613T0000Z/
Berks-Lehigh-Northampton-Western Chester-Western Montgomery-Upper
Bucks-
Including the cities of Easton, Allentown, Collegeville, Oxford,
Bethlehem, Perkasie, Honey Brook, Chalfont, Reading, and
Pottstown
302 PM EDT Thu Jun 11 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT FRIDAY...

* WHAT...Heat index values up to 101 degrees expected.

* WHERE...Berks, Lehigh, Northampton, Upper Bucks, Western Chester, 
  and Western Montgomery Counties.

* WHEN...Until 8 PM EDT Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses.

* ADDITIONAL DETAILS...Some showers and thunderstorms late Friday 
  afternoon will provide some local relief from the heat, however it 
  will still remain very humid. It will then turn much less humid 
  this weekend in the wake of a cold front.

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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

&&

$$

Guzzo
977 
WWUS71 KPHI 120759
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
359 AM EDT Fri Jun 12 2026

DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-122100-
/O.CON.KPHI.HT.Y.0002.000000T0000Z-260613T0000Z/
New Castle-Mercer-Gloucester-Camden-Northwestern Burlington-
Delaware-Philadelphia-Eastern Chester-Eastern Montgomery-Lower
Bucks-
Including the cities of Cherry Hill, Camden, Doylestown, Trenton,
West Chester, Glassboro, Moorestown, Mount Holly, Morrisville,
Norristown, Philadelphia, Media, Wilmington, Lansdale, and
Kennett Square
359 AM EDT Fri Jun 12 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

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

* 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.

* ADDITIONAL DETAILS...Conditions will turn much less humid this 
  weekend in the wake of a cold front tonight, however high 
  temperatures will remain near 90 degrees.

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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

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.

&&

$$

NJZ001-007>010-PAZ060>062-101-103-105-122100-
/O.CON.KPHI.HT.Y.0002.000000T0000Z-260613T0000Z/
Sussex-Warren-Morris-Hunterdon-Somerset-Berks-Lehigh-Northampton-
Western Chester-Western Montgomery-Upper Bucks-
Including the cities of Newton, Flemington, Washington,
Somerville, Easton, Chalfont, Perkasie, Oxford, Collegeville,
Pottstown, Morristown, Reading, Allentown, Honey Brook, and
Bethlehem
359 AM EDT Fri Jun 12 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

* WHAT...Heat index values up to 101 degrees expected.

* WHERE...Portions of northern and northwest New Jersey and east 
  central and southeast Pennsylvania.

* WHEN...Until 8 PM EDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses.

* ADDITIONAL DETAILS...Conditions will turn much less humid this 
  weekend in the wake of a cold front tonight, however high 
  temperatures will remain in the mid 80s to near 90 degrees.

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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

&&

$$

NJZ012-013-020-027-122100-
/O.CON.KPHI.HT.Y.0002.000000T0000Z-260613T0000Z/
Middlesex-Western Monmouth-Ocean-Southeastern Burlington-
Including the cities of New Brunswick, Wharton State Forest,
Jackson, and Freehold
359 AM EDT Fri Jun 12 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

* WHAT...Heat index values up to 104 degrees expected.

* 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.

* ADDITIONAL DETAILS...Conditions will turn much less humid this 
  weekend in the wake of a cold front tonight, however high 
  temperatures will remain in the upper 80s to near 90 degrees.

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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

&&

$$

NJZ014-122100-
/O.CON.KPHI.HT.Y.0002.000000T0000Z-260613T0000Z/
Eastern Monmouth-
Including the cities of Sandy Hook
359 AM EDT Fri Jun 12 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

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

* WHERE...Eastern Monmouth County.

* WHEN...Until 8 PM EDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses.

* ADDITIONAL DETAILS...Conditions will turn much less humid this 
  weekend in the wake of a cold front tonight, however high 
  temperatures will remain in the mid 80s to near 90 degrees.

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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

&&

$$

Staarmann
496 
WWUS71 KPHI 121843
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
243 PM EDT Fri Jun 12 2026

DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-130000-
/O.CON.KPHI.HT.Y.0002.000000T0000Z-260613T0000Z/
New Castle-Mercer-Gloucester-Camden-Northwestern Burlington-
Delaware-Philadelphia-Eastern Chester-Eastern Montgomery-Lower
Bucks-
Including the cities of Wilmington, Cherry Hill, Kennett Square,
Lansdale, Morrisville, West Chester, Mount Holly, Camden, Media,
Trenton, Doylestown, Philadelphia, Norristown, Glassboro, and
Moorestown
243 PM EDT Fri Jun 12 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

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

* 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.

* ADDITIONAL DETAILS...Conditions will turn much less humid this 
  weekend in the wake of a cold front tonight, however high 
  temperatures will remain near 90 degrees.

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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

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.

&&

$$

NJZ001-007>010-PAZ060>062-101-103-105-130000-
/O.CON.KPHI.HT.Y.0002.000000T0000Z-260613T0000Z/
Sussex-Warren-Morris-Hunterdon-Somerset-Berks-Lehigh-Northampton-
Western Chester-Western Montgomery-Upper Bucks-
Including the cities of Morristown, Flemington, Easton, Honey
Brook, Bethlehem, Washington, Collegeville, Pottstown, Newton,
Reading, Somerville, Perkasie, Chalfont, Allentown, and Oxford
243 PM EDT Fri Jun 12 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

* WHAT...Heat index values up to 101 degrees expected.

* WHERE...Portions of northern and northwest New Jersey and east 
  central and southeast Pennsylvania.

* WHEN...Until 8 PM EDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses.

* ADDITIONAL DETAILS...Conditions will turn much less humid this 
  weekend in the wake of a cold front tonight, however high 
  temperatures will remain in the mid 80s to near 90 degrees.

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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

&&

$$

NJZ012-013-020-027-130000-
/O.CON.KPHI.HT.Y.0002.000000T0000Z-260613T0000Z/
Middlesex-Western Monmouth-Ocean-Southeastern Burlington-
Including the cities of Wharton State Forest, Freehold, Jackson,
and New Brunswick
243 PM EDT Fri Jun 12 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

* WHAT...Heat index values up to 102 degrees expected.

* 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.

* ADDITIONAL DETAILS...Conditions will turn much less humid this 
  weekend in the wake of a cold front tonight, however high 
  temperatures will remain in the upper 80s to near 90 degrees.

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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

&&

$$

NJZ014-130000-
/O.CON.KPHI.HT.Y.0002.000000T0000Z-260613T0000Z/
Eastern Monmouth-
Including the cities of Sandy Hook
243 PM EDT Fri Jun 12 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

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

* WHERE...Eastern Monmouth County.

* WHEN...Until 8 PM EDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses.

* ADDITIONAL DETAILS...Conditions will turn much less humid this 
  weekend in the wake of a cold front tonight, however high 
  temperatures will remain in the mid 80s to near 90 degrees.

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.

Take extra precautions when outside. Wear lightweight and loose 
fitting clothing. Try to limit strenuous activities to early morning 
or evening. Take action when you see symptoms of heat exhaustion and 
heat stroke.

&&

$$

DeSilva
737 
WWUS71 KPHI 122331
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
731 PM EDT Fri Jun 12 2026

DEZ001-NJZ001-007>010-012>015-017>020-027-PAZ060>062-070-071-101>106-
130045-
/O.EXP.KPHI.HT.Y.0002.000000T0000Z-260613T0000Z/
New Castle-Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-
Western Monmouth-Eastern Monmouth-Mercer-Gloucester-Camden-
Northwestern Burlington-Ocean-Southeastern Burlington-Berks-
Lehigh-Northampton-Delaware-Philadelphia-Western Chester-Eastern
Chester-Western Montgomery-Eastern Montgomery-Upper Bucks-Lower
Bucks-
Including the cities of Media, Freehold, Doylestown, Easton,
Chalfont, Wharton State Forest, Wilmington, West Chester, Sandy
Hook, Bethlehem, Honey Brook, Philadelphia, Flemington,
Washington, Moorestown, Morrisville, Jackson, Kennett Square,
Cherry Hill, Mount Holly, Collegeville, Somerville, Perkasie,
Trenton, Pottstown, Norristown, Glassboro, Oxford, Reading,
Lansdale, Camden, Allentown, Morristown, New Brunswick, and
Newton
731 PM EDT Fri Jun 12 2026

...HEAT ADVISORY WILL EXPIRE AT 8 PM EDT THIS EVENING...

Temperatures are falling.

$$

RCM

What forecasters said that day

The local office's own words before this heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Philadelphia/Mount Holly wrote its last area forecast discussion before this heat advisory went out at Jun 9, 7:26 PM EDT, 6 hours 58 minutes earlier. Its key messages:

  • 1. Dry conditions expected through much of tonight, however a few isolated showers or storms may arrive by around dawn Wednesday. 2. Dangerous heat is likely on Thursday and Friday. 3. There are multiple chances for thunderstorms Wednesday through Friday. The weekend has trended drier.
Area forecast discussion, Jun 9, 7:26 PM EDT, 6 hours 58 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
726 PM EDT Tue Jun 9 2026

.WHAT HAS CHANGED...
Aviation section updated for the 00Z TAFs.

&&

.KEY MESSAGES...
1. Dry conditions expected through much of tonight, however a
few isolated showers or storms may arrive by around dawn
Wednesday.

2. Dangerous heat is likely on Thursday and Friday.

3. There are multiple chances for thunderstorms Wednesday through
Friday. The weekend has trended drier.

&&

.DISCUSSION...
KEY MESSAGE 1...Dry conditions expected through much of
tonight, however a few isolated showers or storms may arrive by
around dawn Wednesday.

Broad upper ridging will build through tonight. At the surface,
high pressure is sliding offshore, beginning a transition to a
warm advection regime which will ramp up late tonight as a warm
front lifts north. A mid level shortwave trough associated with
upstream convection will approach the area by dawn Wednesday.

Following a warmer afternoon, lows tonight will be upward of
10-15 degrees warmer than this morning was, mainly in the mid
50s to mid 60s under increasing cloud cover. We'll have to keep
an eye on the remnant convection approaching from upstream
overnight. Current indications remain that instability will
weaken considerably toward the east as the remnant activity
moves in overnight into our area. This will likely result in
some isolated decaying showers and embedded rumbles of thunder
moving in around dawn or so across the western half of the
forecast area.

KEY MESSAGE 2...Dangerous heat is likely on Thursday and Friday.

In general, mid-level ridging is expected to build into the region
during the middle and latter part of the week. However, guidance has
been trending southward with placement of an upper-low over Canada
and associated troughing over the CONUS, and therefore featuring a
slightly weaker ridge axis through our region. At the surface, the
region will largely be under the influence of high pressure centered
over portions of the Southeast.

Despite this, dangerous heat is still expected across the area on
Thursday and Friday. Temperatures on both days look to climb into
the low to mid 90s across most of the area. With dewpoints generally
in the low 70s, heat indices are expected to range between 95 to 104
degrees across the majority of the area, outside of the Poconos. The
greatest threat for heat indicies over 100 will be found across
southeast PA, southern NJ and the Delmarva. This level of heat and
humidity can become dangerous quickly for sensitive individuals and
those outdoors for extended periods of time. Heat headlines will
likely be necessary during this time period to cover this threat.

A cold front is forecast to move through the region late Friday into
Saturday, which will is expected to knock temperatures and dewpoints
down several degrees. Though it will still be hot with highs upper
80s to low 90s over the weekend, dewpoints will return to more
comfortable levels, minimizing the threat for additional heat
headlines.

KEY MESSAGE 3...There are multiple chances for thunderstorms
Wednesday through Friday, some which may be severe. The weekend has
trended drier.

The pattern in place will become increasingly conducive for
precipitation chances across the region beginning on Wednesday. Much
of this activity looks to be in the form of diurnally driven
convection, though some guidance is beginning to indicate a few
better opportunities, especially on Friday.

The first opportunity comes on Wednesday, with a weak shortwave and
surface trough moving through the region. Given marginal instability
and shear around the region, the Storm Prediction Center now has our
entire forecast area in a MARGINAL Risk (Level 1/5) for severe
weather. As of right now, PoPs are around 40-60% areawide. The next
opportunity comes on Thursday, however large scale forcing and shear
are expected to remain weak. However, hot temperatures and high
dewpoints will likely trigger at least some diurnally driven
convection, so the Storm Prediction Center has the entire region in
a MARGINAL risk once again. PoPs are generally in the 30-60% range.

On Friday, the region is expected to begin feeling the influence of
the upper trough to the west of the region, in addition to a cold
front that will be approaching from the west. Scattered showers and
storms may focus near and ahead of this boundary, and with strong
destabilization and slightly better wind fields aloft, there is
concern that some severe threat could materialize. This will need to
be monitored in the coming days as the SPC now has areas northwest
of the I-95 corridor outlooked in a 15% chance of severe weather
area.

Guidance has trended considerably drier for much of the weekend in
wake of the cold front, so it now appears that much of the weekend
will be dry. However, another front may approach towards the end of
the weekend and into early next week, with more chances of showers
and storms returning next week.

&&

.AVIATION /00Z WEDNESDAY THROUGH SUNDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas.

Tonight...Generally a VFR forecast. A few SHRA may develop after
06Z, but restrictions will be minimal, generally MVFR, and
confidence is low that any given SHRA will pass over any given
terminal. Will carry VCSH for all but KMIV/KACY. S to SW winds 5
to 10 kt, diminishing to around 5 kt. Low confidence on timing
and restrictions with any SHRA.

Wednesday...VFR initially. MVFR CIGs develop from west to east
starting right after 12Z for KRDG/KABE, and MVFR CIGs spread to
KTTN/KPNE/KPHL/KILG. KMIV/KACY CIGs should remain VFR outside of
any SHRA. One wave of SHRA may impact KRDG/KABE/KTTN/KPNE/KPHL
and KILG in the morning, and will carry PROB30 groups for those
terminals for potential SHRA. A round of TSRA may then impact
the terminals in the afternoon, and will PROB30 groups for that.
S to SW winds 5 to 10 kt in the morning, increasing to 10 to 15
kt with gusts up to 20 kt in the afternoon. Low confidence on
timing and restrictions resulting from any SHRA and TSRA.

Outlook...

Wednesday night through Friday night...Prevailing VFR expected
through the period. Brief periods of sub-VFR conditions are
possible, with isolated to scattered showers and thunderstorms
during the afternoon and evening hours.

Saturday through Sunday...VFR. No significant weather expected.

&&

.MARINE...
No marine hazards expected through Wednesday. Southerly winds
increasing to 10-15 kts with gusts up to 20 kts and seas 2-3
feet. May try to touch SCA gusts on the waters late Wednesday,
but confidence is low at this time.

Outlook...

Wednesday night...SCA conditions possible due to wind gusts up to 25
kt and seas around 3-5 feet.

Thursday through Sunday...No marine headlines anticipated. Winds
will generally remain between 5-15 kt through Saturday, with gusts
up to 20 kt possible on Sunday. Seas generally around 2-3 feet.
Isolated to scattered showers and thunderstorms possible on Thursday
and Friday. Fair weather expected for Saturday and Sunday.

Rip Currents...

For Wednesday, southerly winds increase to 10 to 20 mph with
gusts up to 25 mph, especially in the afternoon. Breaking waves
will vary between 2 to 3 feet. While there will be a light
easterly swell in the morning, a more dominant southerly swell
around 7 to 8 seconds should propagate northward in the
afternoon. Given these conditions, have opted to go with a
MODERATE risk for the development of dangerous rip currents for
all beaches.

For Thursday, southwesterly winds diminish to around 10 to 15
mph. Breaking waves around 1 to 2 feet with a southerly swell
around 6 to 7 seconds. Given the lighter conditions, have opted
to go with a LOW risk for the development of dangerous rip
currents for all beaches.

Ocean water temperatures are gradually increasing, but remain
mostly in the 60s.

For specific beach forecasts, visit weather.gov/beach/phi

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...None.

&&

DISCUSSION...DeSilva/RCM/Staarmann
AVIATION...DeSilva/MPS/RCM
MARINE...DeSilva/RCM
Hazardous weather outlook, Jun 9, 5:14 AM EDT, 21 hours 10 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
514 AM EDT Tue Jun 9 2026

MDZ012-015-019-020-100915-
Kent MD-Queen Annes-Talbot-Caroline-
514 AM EDT Tue Jun 9 2026

This Hazardous Weather Outlook is for northeast Maryland.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

There is a marginal risk (level 1 our of 5) of severe thunderstorms
on Wednesday and Thursday. Hot and humid conditions are expected
Thursday and Friday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

Staarmann

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 10, 3:52 AM EDTSmall Craft AdvisoryPHI20 hr
Jun 10, 5:26 PM EDTSpecial Marine WarningPHI49 min
Jun 10, 6:11 PM EDTSpecial Marine WarningPHI64 min

Nearby

Heat Advisories in New Jersey, 2026Heat Advisories in Pennsylvania, 2026Heat Advisories in Delaware, 2026Every heat advisory in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.