Alert archive / New Jersey / Heat Advisories in 2012

Heat Advisory 5, NWS Philadelphia/Mount Holly

July 4, 201211 counties in New Jersey; Kent County, Sussex County, Delaware; 5 counties in Maryland

NWS Philadelphia/Mount Holly issued this heat advisory at Jul 4, 2012, 3:39 AM EDT for 11 counties in New Jersey; Kent County, Sussex County, Delaware; 5 counties in Maryland. It took effect at Jul 4, 2012, 1:00 PM EDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Jul 4, 2012, 3:39 AM EDT (07:39 UTC)
In effect from
Jul 4, 2012, 1:00 PM EDT
Expired
Jul 4, 2012, 6:33 PM EDT
In force
6 hr
Issued by
NWS Philadelphia/Mount Holly

Counties Kent County, DE, Sussex County, DE, Caroline County, MD, Cecil County, MD, Kent County, MD, Queen Anne's County, MD, Talbot County, MD, Atlantic County, NJ, Burlington County, NJ, Cape May County, NJ, Cumberland County, NJ, Hunterdon County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Salem County, NJ, Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 72 km from the middle of the area, began a volume at 07:40 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

Wallops Is Stn, VA (KWAL), launched 00:00Z, 7.7 hours before the alert went out and 189 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, Wallops Is Stn, VA at 00:00Z on 2012-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1824 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Wallops Is Stn, VA at 00:00Z on 2012-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 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
1824 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
1337 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
154 m²/s²
Significant tornado parameter
0.4
Supercell composite
4.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

552 
WWUS71 KPHI 040739
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
339 AM EDT WED JUL 4 2012

DEZ001-NJZ015-017>019-PAZ067>071-042030-
/O.NEW.KPHI.EH.A.0005.120706T1600Z-120708T0000Z/
/O.CON.KPHI.EH.W.0004.120704T1500Z-120705T2200Z/
NEW CASTLE-MERCER-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-
CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...TRENTON...GLASSBORO...
CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...WEST CHESTER...
NORRISTOWN...DOYLESTOWN...MEDIA...PHILADELPHIA
339 AM EDT WED JUL 4 2012

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 11 AM THIS
MORNING TO 6 PM EDT THURSDAY...
...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY EVENING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED AN
EXCESSIVE HEAT WATCH...WHICH IS IN EFFECT FROM FRIDAY AFTERNOON
THROUGH SATURDAY EVENING.

* HEAT INDEX VALUES...AROUND 100 THIS AFTERNOON AND AGAIN THURSDAY
  AND FRIDAY AFTERNOON...SOARING TO 105 SATURDAY. TONIGHTS LOW
  TEMPERATURE IN PHILADELPHIA WILL BE IN THE UPPER 70S AND THE
  SAME OR POSSIBLY WARMER FRIDAY NIGHT.

* TIMING...THIS LENGTHY 10 DAY HEAT WAVE WILL PROBABLY CULMINATE
  WITH ITS HOTTEST TEMPERATURES ON SATURDAY....CLOSE TO 100
  DEGREES. 

* DURATION...LOWER DEWPOINTS WILL PROBABLY PERMIT SOME RELIEF
  THURSDAY NIGHT BEFORE IT HEATS UP AGAIN MIDDAY FRIDAY. SUNDAY
  SHOULD BE SLIGHTLY COOLER... BUT STILL MAY TOP OUT JUST ABOVE 90
  DEGREES WHICH WOULD EXTEND THE HEAT WAVE TO 11 DAYS FOR THE
  PHILADELPHIA METRO AREA SOUTHWESTWARD.

* THE NUMBER OF CONSECUTIVE DAYS WITH A MAXIMUM TEMPERATURE AT
  PHILADELPHIA AND WILMINGTON HAD REACHED SIX DAYS AS OF TUESDAY.
  THE RECORD AT PHILADELPHIA IS 18 CONSECUTIVE DAYS... WHICH WAS
  SET IN 1988. THE RECORD AT WILMINGTON IS 16 CONSECUTIVE DAYS...
  WHICH WAS SET IN 1895. IT PRESENTLY APPEARS THIS PERIOD MAY LAST
  11 CONSECUTIVE DAYS... AND END ON MONDAY.

* IMPACTS...THE CUMULATIVE IMPACTS OF THE HEAT ARE A DANGER 
  ESPECIALLY FOR THE ELDERLY... INFIRM... THE VERY YOUNG... AND 
  THOSE IN INNER CITY AREAS THAT DO NOT HAVE AIR CONDITIONING. 
  PETS ALSO ARE SUSCEPTIBLE TO THE HEAT. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL CREATE A DANGEROUS SITUATION
IN WHICH HEAT ILLNESSES ARE LIKELY. 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 IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE... RESCHEDULE STRENUOUS ACTIVITY TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

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.

PLEASE MAKE SURE THAT PETS HAVE ACCESS TO PLENTY OF COOL WATER
AND A SHADED AND WELL VENTILATED AREA. THE MOST HUMANE THING TO
DO IS TO BRING THEM INTO AN AIR CONDITIONED PLACE.

PLEASE NEVER LEAVE ANY PERSON OR ANIMAL IN A PARKED VEHICLE FOR
ANY LENGTH OF TIME.

AN EXCESSIVE HEAT WATCH MEANS THAT A PROLONGED PERIOD OF HOT
TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND
HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN
WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY
IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP
ON RELATIVES AND NEIGHBORS.

&&

$$

DEZ002>004-MDZ008-012-015-019-020-NJZ008>010-012>014-016-020>023-
025>027-042030-
/O.NEW.KPHI.HT.Y.0005.120704T1700Z-120704T2300Z/
KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-QUEEN ANNES-
TALBOT-CAROLINE-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-
WESTERN MONMOUTH-EASTERN MONMOUTH-SALEM-OCEAN-CUMBERLAND-ATLANTIC-
CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-SOUTHEASTERN BURLINGTON-
INCLUDING THE CITIES OF...DOVER...GEORGETOWN...REHOBOTH BEACH...
ELKTON...CHESTERTOWN...CENTREVILLE...EASTON...DENTON...
MORRISTOWN...FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...FREEHOLD...
SANDY HOOK...PENNSVILLE...JACKSON...MILLVILLE...HAMMONTON...
CAPE MAY COURT HOUSE...ATLANTIC CITY...LONG BEACH ISLAND...
WHARTON STATE FOREST
339 AM EDT WED JUL 4 2012

...HEAT ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM EDT
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM
EDT THIS EVENING.

* HEAT INDEX VALUES...RANGING FROM AROUND 100 DEGREES IN NORTHERN
  NEW JERSEY UP TO 106 IN PORTIONS OF SOUTHERN DELAWARE AND
  MARYLAND'S EASTERN SHORE.

* IMPACTS...THE HEAT CAN BE DANGEROUS...ESPECIALLY FOR THE
  ELDERLY... INFIRM... THE VERY YOUNG... AND THOSE IN INNER CITY
  AREAS THAT DO NOT HAVE AIR CONDITIONING. PETS ALSO ARE
  SUSCEPTIBLE TO THE HEAT AS IS ANYONE WORKING OR EXERCISING
  OUTDOORS THIS AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY
WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE
POSSIBLE. 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 IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITY TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

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.

&&

$$


DRAG
3 follow-up statements
383 
WWUS71 KPHI 040756 CCA
NPWPHI

URGENT - WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
354 AM EDT WED JUL 4 2012

DEZ001-NJZ015-017>019-PAZ067>071-042100-
/O.COR.KPHI.EH.A.0005.120706T1600Z-120708T0000Z/
/O.COR.KPHI.EH.W.0004.120704T1500Z-120705T2200Z/
NEW CASTLE-MERCER-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-
CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...TRENTON...GLASSBORO...
CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...WEST CHESTER...
NORRISTOWN...DOYLESTOWN...MEDIA...PHILADELPHIA
354 AM EDT WED JUL 4 2012

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 11 AM THIS
MORNING TO 6 PM EDT THURSDAY...
...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY EVENING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED AN
EXCESSIVE HEAT WATCH...WHICH IS IN EFFECT FROM FRIDAY AFTERNOON
THROUGH SATURDAY EVENING.

* HEAT INDEX VALUES...AROUND 100 THIS AFTERNOON AND AGAIN THURSDAY
  AND FRIDAY AFTERNOON...SOARING TO 105 SATURDAY. TONIGHTS LOW
  TEMPERATURE IN PHILADELPHIA WILL BE IN THE UPPER 70S AND THE
  SAME OR POSSIBLY WARMER FRIDAY NIGHT.

* TIMING...THIS LENGTHY 10 DAY HEAT WAVE WILL PROBABLY CULMINATE
  WITH ITS HOTTEST TEMPERATURES ON SATURDAY....CLOSE TO 100
  DEGREES. 

* DURATION...LOWER DEWPOINTS WILL PROBABLY PERMIT SOME RELIEF
  THURSDAY NIGHT BEFORE IT HEATS UP AGAIN MIDDAY FRIDAY. SUNDAY
  SHOULD BE SLIGHTLY COOLER... BUT STILL MAY TOP OUT JUST ABOVE 90
  DEGREES WHICH WOULD EXTEND THE HEAT WAVE TO 11 DAYS FOR THE
  PHILADELPHIA METRO AREA SOUTHWESTWARD.

* THE NUMBER OF CONSECUTIVE DAYS WITH A MAXIMUM TEMPERATURE OF 90
  DEGREES OR HIGHER AT PHILADELPHIA AND WILMINGTON HAD REACHED
  SIX DAYS AS OF TUESDAY. THE RECORD AT PHILADELPHIA IS 18
  CONSECUTIVE DAYS... WHICH WAS SET IN 1988. THE RECORD AT
  WILMINGTON IS 16 CONSECUTIVE DAYS... WHICH WAS SET IN 1895. IT
  PRESENTLY APPEARS THIS PERIOD MAY LAST 11 CONSECUTIVE DAYS...
  AND END ON MONDAY.

* IMPACTS...THE CUMULATIVE IMPACTS OF THE HEAT ARE A DANGER 
  ESPECIALLY FOR THE ELDERLY... INFIRM... THE VERY YOUNG... AND 
  THOSE IN INNER CITY AREAS THAT DO NOT HAVE AIR CONDITIONING. 
  PETS ALSO ARE SUSCEPTIBLE TO THE HEAT. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL CREATE A DANGEROUS SITUATION
IN WHICH HEAT ILLNESSES ARE LIKELY. 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 IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE... RESCHEDULE STRENUOUS ACTIVITY TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

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.

PLEASE MAKE SURE THAT PETS HAVE ACCESS TO PLENTY OF COOL WATER
AND A SHADED AND WELL VENTILATED AREA. THE MOST HUMANE THING TO
DO IS TO BRING THEM INTO AN AIR CONDITIONED PLACE.

PLEASE NEVER LEAVE ANY PERSON OR ANIMAL IN A PARKED VEHICLE FOR
ANY LENGTH OF TIME.

AN EXCESSIVE HEAT WATCH MEANS THAT A PROLONGED PERIOD OF HOT
TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND
HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN
WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY
IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP
ON RELATIVES AND NEIGHBORS.

&&

$$

DEZ002>004-MDZ008-012-015-019-020-NJZ008>010-012>014-016-020>023-
025>027-042100-
/O.NEW.KPHI.HT.Y.0005.120704T1700Z-120704T2300Z/
KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-QUEEN ANNES-
TALBOT-CAROLINE-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-
WESTERN MONMOUTH-EASTERN MONMOUTH-SALEM-OCEAN-CUMBERLAND-ATLANTIC-
CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-SOUTHEASTERN BURLINGTON-
INCLUDING THE CITIES OF...DOVER...GEORGETOWN...REHOBOTH BEACH...
ELKTON...CHESTERTOWN...CENTREVILLE...EASTON...DENTON...
MORRISTOWN...FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...FREEHOLD...
SANDY HOOK...PENNSVILLE...JACKSON...MILLVILLE...HAMMONTON...
CAPE MAY COURT HOUSE...ATLANTIC CITY...LONG BEACH ISLAND...
WHARTON STATE FOREST
354 AM EDT WED JUL 4 2012

...HEAT ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM EDT
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM
EDT THIS EVENING.

* HEAT INDEX VALUES...RANGING FROM AROUND 100 DEGREES IN NORTHERN
  NEW JERSEY UP TO 106 IN PORTIONS OF SOUTHERN DELAWARE AND
  MARYLAND'S EASTERN SHORE.

* IMPACTS...THE HEAT CAN BE DANGEROUS...ESPECIALLY FOR THE
  ELDERLY... INFIRM... THE VERY YOUNG... AND THOSE IN INNER CITY
  AREAS THAT DO NOT HAVE AIR CONDITIONING. PETS ALSO ARE
  SUSCEPTIBLE TO THE HEAT AS IS ANYONE WORKING OR EXERCISING
  OUTDOORS THIS AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY
WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE
POSSIBLE. 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 IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITY TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

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.

&&

$$


DRAG ..CORRECTED BULLET 4 OF THE WARNING..
397 
WWUS71 KPHI 041919
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
319 PM EDT WED JUL 4 2012

DEZ001-NJZ015-017>019-PAZ067>071-042300-
/O.CAN.KPHI.EH.A.0005.120706T1600Z-120708T0000Z/
/O.EXT.KPHI.EH.W.0004.000000T0000Z-120708T0000Z/
NEW CASTLE-MERCER-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-
CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...TRENTON...GLASSBORO...
CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...WEST CHESTER...
NORRISTOWN...DOYLESTOWN...MEDIA...PHILADELPHIA
319 PM EDT WED JUL 4 2012

...EXCESSIVE HEAT WARNING NOW IN EFFECT UNTIL 8 PM EDT SATURDAY...


* HEAT INDEX VALUES...AROUND 100 THURSDAY AND FRIDAY AFTERNOON,
  THEN SOARING TO AROUND 105 ON SATURDAY. OVERNIGHT LOW
  TEMPERATURES IN PHILADELPHIA WILL BE IN THE UPPER 70S TONIGHT
  AND THURSDAY NIGHT AND POSSIBLY A FEW DEGREES WARMER FRIDAY NIGHT.

* TIMING...THIS LENGTHY 10 DAY HEAT WAVE WILL PROBABLY CULMINATE
  WITH ITS HOTTEST TEMPERATURES AND HEAT INDEX VALUES ON
  SATURDAY....WITH TEMPERATURES CLOSE TO 100 DEGREES AND HEAT
  INDEX VALUES AROUND 105 DEGREES.

* DURATION...LOWER DEWPOINTS WILL PROBABLY PERMIT SOME RELIEF
  THURSDAY NIGHT BEFORE IT HEATS UP AGAIN ON FRIDAY. SUNDAY SHOULD
  BE SLIGHTLY COOLER... BUT STILL MAY TOP OUT JUST ABOVE 90
  DEGREES WHICH WOULD EXTEND THE HEAT WAVE TO 11 DAYS FOR THE
  PHILADELPHIA METRO AREA SOUTHWESTWARD.

* THE NUMBER OF CONSECUTIVE DAYS WITH A MAXIMUM TEMPERATURE OF 90
  DEGREES OR HIGHER AT PHILADELPHIA AND WILMINGTON HAD REACHED
  SEVEN DAYS AS OF TODAY. THE RECORD AT PHILADELPHIA IS 18
  CONSECUTIVE DAYS... WHICH WAS SET IN 1988. THE RECORD AT
  WILMINGTON IS 16 CONSECUTIVE DAYS... WHICH WAS SET IN 1895. IT
  PRESENTLY APPEARS THIS PERIOD MAY LAST 11 CONSECUTIVE DAYS...
  AND END ON MONDAY.

* IMPACTS...THE CUMULATIVE IMPACTS OF THE HEAT ARE A DANGER 
  ESPECIALLY FOR THE ELDERLY... INFIRM... THE VERY YOUNG... AND 
  THOSE IN INNER CITY AREAS THAT DO NOT HAVE AIR CONDITIONING. 
  PETS ALSO ARE SUSCEPTIBLE TO THE HEAT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL CREATE A DANGEROUS SITUATION
IN WHICH HEAT ILLNESSES ARE LIKELY. DRINK PLENTY OF FLUIDS...
STAY IN AN AIR CONDITIONED ROOM... STAY OUT OF THE SUN... AND
CHECK UP ON RELATIVES AND NEIGHBORS.

PLEASE MAKE SURE THAT PETS HAVE ACCESS TO PLENTY OF COOL WATER
AND A SHADED AND WELL VENTILATED AREA. THE MOST HUMANE THING TO
DO IS TO BRING THEM INTO AN AIR CONDITIONED PLACE.

PLEASE NEVER LEAVE ANY PERSON OR ANIMAL IN A PARKED VEHICLE FOR
ANY LENGTH OF TIME.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITY TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE
AND DRINK PLENTY OF WATER.

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.

&&

$$

DEZ002>004-MDZ008-012-015-019-020-042300-
/O.EXT.KPHI.HT.Y.0005.000000T0000Z-120706T0000Z/
KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-QUEEN ANNES-
TALBOT-CAROLINE-
INCLUDING THE CITIES OF...DOVER...GEORGETOWN...REHOBOTH BEACH...
ELKTON...CHESTERTOWN...CENTREVILLE...EASTON...DENTON
319 PM EDT WED JUL 4 2012

...HEAT ADVISORY NOW IN EFFECT UNTIL 8 PM EDT THURSDAY...

* HEAT INDEX VALUES...AROUND 105 DEGREES.

* IMPACTS...THE HEAT CAN BE DANGEROUS...ESPECIALLY FOR THE
  ELDERLY... INFIRM... THE VERY YOUNG... AND THOSE IN INNER CITY
  AREAS THAT DO NOT HAVE AIR CONDITIONING. PETS ALSO ARE
  SUSCEPTIBLE TO THE HEAT AS IS ANYONE WORKING OR EXERCISING
  OUTDOORS DURING THE AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY
WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE
POSSIBLE. 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 IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITY TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

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.

&&

$$

NJZ008>010-012>014-016-020>023-025>027-042300-
/O.CON.KPHI.HT.Y.0005.000000T0000Z-120704T2300Z/
MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-WESTERN MONMOUTH-
EASTERN MONMOUTH-SALEM-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-
COASTAL ATLANTIC-COASTAL OCEAN-SOUTHEASTERN BURLINGTON-
INCLUDING THE CITIES OF...MORRISTOWN...FLEMINGTON...SOMERVILLE...
NEW BRUNSWICK...FREEHOLD...SANDY HOOK...PENNSVILLE...JACKSON...
MILLVILLE...HAMMONTON...CAPE MAY COURT HOUSE...ATLANTIC CITY...
LONG BEACH ISLAND...WHARTON STATE FOREST
319 PM EDT WED JUL 4 2012

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING...

* HEAT INDEX VALUES...AROUND 100 DEGREES.

* IMPACTS...THE HEAT CAN BE DANGEROUS...ESPECIALLY FOR THE
  ELDERLY... INFIRM... THE VERY YOUNG... AND THOSE IN INNER CITY
  AREAS THAT DO NOT HAVE AIR CONDITIONING. PETS ALSO ARE
  SUSCEPTIBLE TO THE HEAT AS IS ANYONE WORKING OR EXERCISING
  OUTDOORS DURING THE AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY
WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE
POSSIBLE. 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 IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITY TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

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.

&&

$$
979 
WWUS71 KPHI 042233
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
633 PM EDT WED JUL 4 2012

DEZ002>004-MDZ008-012-015-019-020-050645-
/O.CAN.KPHI.HT.Y.0005.000000T0000Z-120706T0000Z/
/O.NEW.KPHI.HT.Y.0006.120704T2300Z-120706T0000Z/
KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-QUEEN ANNES-
TALBOT-CAROLINE-
INCLUDING THE CITIES OF...DOVER...GEORGETOWN...REHOBOTH BEACH...
ELKTON...CHESTERTOWN...CENTREVILLE...EASTON...DENTON
633 PM EDT WED JUL 4 2012

...HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT UNTIL 8 PM EDT THURSDAY.

* HEAT INDEX VALUES...AROUND 105 DEGREES.

* IMPACTS...THE HEAT CAN BE DANGEROUS...ESPECIALLY FOR THE 
  ELDERLY... INFIRM... THE VERY YOUNG... AND THOSE IN INNER CITY 
  AREAS THAT DO NOT HAVE AIR CONDITIONING. PETS ALSO ARE 
  SUSCEPTIBLE TO THE HEAT AS IS ANYONE WORKING OR EXERCISING 
  OUTDOORS DURING THE AFTERNOON. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY
WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE
POSSIBLE. 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 IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITY TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

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.

&&

$$

NJZ008>010-012>014-016-020>023-025>027-042345-
/O.CAN.KPHI.HT.Y.0005.000000T0000Z-120704T2300Z/
MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-WESTERN MONMOUTH-
EASTERN MONMOUTH-SALEM-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-
COASTAL ATLANTIC-COASTAL OCEAN-SOUTHEASTERN BURLINGTON-
INCLUDING THE CITIES OF...MORRISTOWN...FLEMINGTON...SOMERVILLE...
NEW BRUNSWICK...FREEHOLD...SANDY HOOK...PENNSVILLE...JACKSON...
MILLVILLE...HAMMONTON...CAPE MAY COURT HOUSE...ATLANTIC CITY...
LONG BEACH ISLAND...WHARTON STATE FOREST
633 PM EDT WED JUL 4 2012

...HEAT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE
HEAT ADVISORY.



$$

DEZ001-NJZ015-017>019-PAZ067>071-050645-
/O.CON.KPHI.EH.W.0004.000000T0000Z-120708T0000Z/
NEW CASTLE-MERCER-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-
CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...TRENTON...GLASSBORO...
CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...WEST CHESTER...
NORRISTOWN...DOYLESTOWN...MEDIA...PHILADELPHIA
633 PM EDT WED JUL 4 2012

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT
SATURDAY...

* HEAT INDEX VALUES...AROUND 100 THURSDAY AND FRIDAY AFTERNOON...
   THEN SOARING TO AROUND 105 ON SATURDAY. OVERNIGHT LOW 
  TEMPERATURES IN PHILADELPHIA WILL BE IN THE UPPER 70S TONIGHT 
  AND THURSDAY NIGHT AND POSSIBLY A FEW DEGREES WARMER FRIDAY 
  NIGHT. 

* TIMING...THIS LENGTHY 10 DAY HEAT WAVE WILL PROBABLY CULMINATE 
  WITH ITS HOTTEST TEMPERATURES AND HEAT INDEX VALUES ON 
  SATURDAY....WITH TEMPERATURES CLOSE TO 100 DEGREES AND HEAT 
  INDEX VALUES AROUND 105 DEGREES. 

* DURATION...LOWER DEWPOINTS WILL PROBABLY PERMIT SOME RELIEF 
  THURSDAY NIGHT BEFORE IT HEATS UP AGAIN ON FRIDAY. SUNDAY 
  SHOULD BE SLIGHTLY COOLER... BUT STILL MAY TOP OUT JUST ABOVE 
  90 DEGREES WHICH WOULD EXTEND THE HEAT WAVE TO 11 DAYS FOR THE 
  PHILADELPHIA METRO AREA SOUTHWESTWARD. 

* THE NUMBER OF CONSECUTIVE DAYS WITH A MAXIMUM TEMPERATURE OF 
  90 DEGREES OR HIGHER AT PHILADELPHIA AND WILMINGTON HAD 
  REACHED SEVEN DAYS AS OF TODAY. THE RECORD AT PHILADELPHIA IS 
  18 CONSECUTIVE DAYS... WHICH WAS SET IN 1988. THE RECORD AT 
  WILMINGTON IS 16 CONSECUTIVE DAYS... WHICH WAS SET IN 1895. IT 
  PRESENTLY APPEARS THIS PERIOD MAY LAST 11 CONSECUTIVE DAYS... 
  AND END ON MONDAY. 

* IMPACTS...THE CUMULATIVE IMPACTS OF THE HEAT ARE A DANGER 
  ESPECIALLY FOR THE ELDERLY... INFIRM... THE VERY YOUNG... AND 
  THOSE IN INNER CITY AREAS THAT DO NOT HAVE AIR CONDITIONING. 
  PETS ALSO ARE SUSCEPTIBLE TO THE HEAT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL CREATE A DANGEROUS SITUATION
IN WHICH HEAT ILLNESSES ARE LIKELY. DRINK PLENTY OF FLUIDS...
STAY IN AN AIR CONDITIONED ROOM... STAY OUT OF THE SUN... AND
CHECK UP ON RELATIVES AND NEIGHBORS.

PLEASE MAKE SURE THAT PETS HAVE ACCESS TO PLENTY OF COOL WATER
AND A SHADED AND WELL VENTILATED AREA. THE MOST HUMANE THING TO
DO IS TO BRING THEM INTO AN AIR CONDITIONED PLACE.

PLEASE NEVER LEAVE ANY PERSON OR ANIMAL IN A PARKED VEHICLE FOR
ANY LENGTH OF TIME.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITY TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 3:39 AM EDTExcessive Heat WatchPHIBurlington, Camden, Gloucester, Mercer12 hr
Jul 4, 6:37 AM EDTSpecial Weather StatementPHIMonmouth, Ocean38 min
Jul 4, 7:09 AM EDTSpecial Marine WarningPHI66 min
Jul 4, 3:52 PM EDTCoastal Flood StatementPHIAtlantic, Burlington, Cape May, Cumberland, Middlesex, Monmouth and 1 more8 hr
Jul 4, 6:33 PM EDTHeat AdvisoryPHIKent, Sussex25 hr

Nearby

Heat Advisories in New Jersey, 2012Heat Advisories in Maryland, 2012Heat Advisories in Delaware, 2012Every heat advisory in 2012

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.