Alert archive / New Jersey / Excessive Heat Warnings in 2007

Excessive Heat Warning 1, NWS Philadelphia/Mount Holly

June 26, 20074 counties in New Jersey; New Castle County, Delaware; Delaware County, Philadelphia County, Pennsylvania

NWS Philadelphia/Mount Holly issued this excessive heat warning at Jun 26, 2007, 4:26 PM EDT for 4 counties in New Jersey; New Castle County, Delaware; Delaware County, Philadelphia County, Pennsylvania. It took effect at Jun 27, 2007, 12:00 PM EDT. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 26, 2007, 4:26 PM EDT (20:26 UTC)
In effect from
Jun 27, 2007, 12:00 PM EDT
Expired
Jun 27, 2007, 7:00 PM EDT
In force
7 hr
Issued by
NWS Philadelphia/Mount Holly

Counties New Castle County, DE, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Mercer County, NJ, Delaware County, PA, Philadelphia County, PA

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 8.4 hours before the alert went out and 98 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, Phillips Aaf/Abe, MD at 12:00Z on 2007-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1086 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, Phillips Aaf/Abe, MD at 12:00Z on 2007-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.1939Sfc1 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
1086 J/kg
Mixed-layer CIN
-55 J/kg
Mixed-layer LCL
927 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WWUS71 KPHI 262026
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
426 PM EDT TUE JUN 26 2007

DEZ001-NJZ015-017>019-PAZ068>071-270430-
/O.UPG.KPHI.EH.A.0001.070627T1600Z-070627T2300Z/
/O.NEW.KPHI.EH.W.0001.070627T1600Z-070627T2300Z/
/O.NEW.KPHI.EH.A.0002.070628T1600Z-070628T2300Z/
/O.CON.KPHI.HT.Y.0002.000000T0000Z-070626T2300Z/
NEW CASTLE-MERCER-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-
MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...TRENTON...GLASSBORO...
CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...NORRISTOWN...
DOYLESTOWN...MEDIA
426 PM EDT TUE JUN 26 2007

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING...
...EXCESSIVE HEAT WARNING IN EFFECT FROM 12 PM TO 7 PM EDT
WEDNESDAY...
...EXCESSIVE HEAT WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED AN
EXCESSIVE HEAT WARNING...WHICH IS IN EFFECT FROM 12 PM TO 7 PM
EDT WEDNESDAY. AN EXCESSIVE HEAT WATCH HAS ALSO BEEN ISSUED. THIS
EXCESSIVE HEAT WATCH IS IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING. A HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM
EDT THIS EVENING.

TEMPERATURES ROSE INTO THE LOWER 90S THIS AFTERNOON IN THE 
PHILADELPHIA METROPOLITAN AREA, WITH HEAT INDEX VALUES IN THE MID 
90S. TEMPERATURES WILL FALL BACK INTO THE 80S BY SUNSET.

THE TEMPERATURE TOMORROW AGAIN IS EXPECTED TO CLIMB INTO THE LOW TO 
MID 90S IN HIGHLY URBANIZED AREAS. THE HEAT COMBINED WITH AFTERNOON 
DEW POINTS IN THE UPPER 60S WILL RESULT IN HEAT INDICES IN THE UPPER 
90S. 

A HEAT WARNING FOR THE HIGHLY URBANIZED AREAS MEANS THAT A PERIOD OF 
CONSECUTIVE DAYS OF HOT TEMPERATURES IS EXPECTED IN THE PHILADELPHIA 
METROPOLITAN AREA. 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.

PLEASE MAKE SURE THAT YOUR PETS HAVE, AT A MINIMUM, ACCESS TO A 
SHADY AND WELL-VENTILATED PLACE AND PLENTY OF COOL WATER. THE MOST 
HUMANE THING TO DO IS TO BRING THEM INTO AN AIR CONDITIONED 
ENVIRONMENT. 

FINALLY, NEVER LEAVE ANY PERSON OR ANIMAL UNATTENDED IN A VEHICLE 
FOR ANY LENGTH OF TIME. 

THE POTENTIAL EXISTS FOR ANOTHER HOT HUMID DAY ON THURSDAY AS A COLD 
FRONT BEGINS TO APPROACH FROM THE NORTHWEST. AS A RESULT, A HEAT 
WATCH HAS BEEN ISSUED FOR THURSDAY FOR HIGHLY URBANIZED AREAS.

$$

PAZ067-270430-
/O.UPG.KPHI.EH.A.0001.070627T1600Z-070627T2300Z/
/O.NEW.KPHI.EH.W.0001.070627T1600Z-070627T2300Z/
/O.NEW.KPHI.EH.A.0002.070628T1600Z-070628T2300Z/
CHESTER-
INCLUDING THE CITY OF...WEST CHESTER
426 PM EDT TUE JUN 26 2007

...EXCESSIVE HEAT WARNING IN EFFECT FROM 12 PM TO 7 PM EDT
WEDNESDAY...
...EXCESSIVE HEAT WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED AN
EXCESSIVE HEAT WARNING...WHICH IS IN EFFECT FROM 12 PM TO 7 PM
EDT WEDNESDAY. AN EXCESSIVE HEAT WATCH HAS ALSO BEEN ISSUED. THIS
EXCESSIVE HEAT WATCH IS IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING. 

TEMPERATURES ROSE INTO THE LOWER 90S THIS AFTERNOON IN THE 
PHILADELPHIA METROPOLITAN AREA, WITH HEAT INDEX VALUES IN THE MID 
90S. TEMPERATURES WILL FALL BACK INTO THE 80S BY SUNSET.

THE TEMPERATURE TOMORROW AGAIN IS EXPECTED TO CLIMB INTO THE LOW TO 
MID 90S IN HIGHLY URBANIZED AREAS. THE HEAT COMBINED WITH AFTERNOON 
DEW POINTS IN THE UPPER 60S WILL RESULT IN HEAT INDICES IN THE UPPER 
90S. 

A HEAT WARNING FOR THE HIGHLY URBANIZED AREAS MEANS THAT A PERIOD OF 
CONSECUTIVE DAYS OF HOT TEMPERATURES IS EXPECTED IN THE PHILADELPHIA 
METROPOLITAN AREA. 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.

PLEASE MAKE SURE THAT YOUR PETS HAVE, AT A MINIMUM, ACCESS TO A 
SHADY AND WELL-VENTILATED PLACE AND PLENTY OF COOL WATER. THE MOST 
HUMANE THING TO DO IS TO BRING THEM INTO AN AIR CONDITIONED 
ENVIRONMENT. 

FINALLY, NEVER LEAVE ANY PERSON OR ANIMAL UNATTENDED IN A VEHICLE 
FOR ANY LENGTH OF TIME. 

THE POTENTIAL EXISTS FOR ANOTHER HOT HUMID DAY ON THURSDAY AS A COLD 
FRONT BEGINS TO APPROACH FROM THE NORTHWEST. AS A RESULT, A HEAT 
WATCH HAS BEEN ISSUED FOR THURSDAY FOR HIGHLY URBANIZED AREAS.

$$

DELISI/IOVINO
5 follow-up statements
000 
WWUS71 KPHI 262338
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
738 PM EDT TUE JUN 26 2007

DEZ001-NJZ015-017>019-PAZ067>071-271000-
/O.CON.KPHI.EH.W.0001.070627T1600Z-070627T2300Z/
/O.CON.KPHI.EH.A.0002.070628T1600Z-070628T2300Z/
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
738 PM EDT TUE JUN 26 2007

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 12 PM TO 7 PM
EDT WEDNESDAY...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH THURSDAY EVENING...

AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 12 PM TO 7 PM
EDT WEDNESDAY. AN EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM
THURSDAY AFTERNOON THROUGH THURSDAY EVENING. 

THE TEMPERATURE TOMORROW IS EXPECTED TO CLIMB INTO THE LOW TO MID
90S IN HIGHLY URBANIZED AREAS. THE HEAT COMBINED WITH AFTERNOON
DEW POINTS IN THE UPPER 60S WILL RESULT IN HEAT INDICES IN THE
UPPER 90S.

A HEAT WARNING FOR THE HIGHLY URBANIZED AREAS MEANS THAT A PERIOD
OF CONSECUTIVE DAYS OF HOT TEMPERATURES IS EXPECTED IN THE
PHILADELPHIA METROPOLITAN AREA. 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.

PLEASE MAKE SURE THAT YOUR PETS HAVE...AT A MINIMUM...ACCESS TO A
SHADY AND WELL-VENTILATED PLACE AND PLENTY OF COOL WATER. THE MOST
HUMANE THING TO DO IS TO BRING THEM INTO AN AIR CONDITIONED
ENVIRONMENT.

FINALLY...NEVER LEAVE ANY PERSON OR ANIMAL UNATTENDED IN A
VEHICLE FOR ANY LENGTH OF TIME.

THE POTENTIAL EXISTS FOR ANOTHER HOT HUMID DAY ON THURSDAY AS A
COLD FRONT BEGINS TO APPROACH FROM THE NORTHWEST. AS A RESULT...
A HEAT WATCH HAS BEEN ISSUED FOR THURSDAY FOR HIGHLY URBANIZED
AREAS.

$$

DELISI/IOVINO
000 
WWUS71 KPHI 270820
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
420 AM EDT WED JUN 27 2007

DEZ001-NJZ015-017>019-PAZ067>071-272300-
/O.CAN.KPHI.EH.A.0002.070628T1600Z-070628T2300Z/
/O.CON.KPHI.EH.W.0001.070627T1600Z-070627T2300Z/
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
420 AM EDT WED JUN 27 2007

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO
7 PM EDT THIS EVENING...
...EXCESSIVE HEAT WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NEW JERSEY HAS
CANCELLED THE EXCESSIVE HEAT WATCH FOR THURSDAY. HOWEVER, THE
EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY UNTIL 7
PM EDT THIS EVENING.

HIGH TEMPERATURES TODAY WILL CLIMB INTO THE LOWER AND MID 90S OVER
THE HIGHLY URBANIZED AREAS IN AND NEAR PHILADELPHIA. THE HEAT,
COMBINED WITH AFTERNOON DEW POINTS AROUND 70 AND IN THE LOWER
70S, WILL RESULT IN HEAT INDICES AROUND 105 DEGREES.

A HEAT WARNING FOR THE HIGHLY URBANIZED AREAS MEANS THAT A PERIOD
OF CONSECUTIVE DAYS OF HOT TEMPERATURES IS EXPECTED IN THE
PHILADELPHIA METROPOLITAN AREA. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL CREATE A SITUATION IN WHICH
HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN
AIR-CONDITIONED OR WELL VENTILATED PLACE...STAY OUT OF THE SUN...
AND CHECK ON RELATIVES AND NEIGHBORS.

PLEASE MAKE SURE THAT PETS AND ANIMALS HAVE...AT A MINIMUM...
ACCESS TO A SHADY AND WELL-VENTILATED PLACE AND PLENTY OF COOL
WATER. THE MOST HUMANE THING TO DO IS TO BRING THEM INTO AN AIR
CONDITIONED ENVIRONMENT.

FINALLY...NEVER LEAVE ANY PERSON OR ANIMAL UNATTENDED IN A
VEHICLE FOR ANY LENGTH OF TIME.

MORE CLOUDS AND POSSIBLY MORE WIDESPREAD PRECIPITATION ARE
FORECAST TO LEAD TO SLIGHTLY LESS HOT TEMPERATURES FOR THURSDAY.
HOWEVER, HUMIDITIES WILL CONTINUE TO BE HIGH, AND HEAT INDICES
COULD APPROACH 100 THURSDAY AFTERNOON.

AN EXCESSIVE HEAT WARNING IS ISSUED WHEN HIGH HUMIDITIES ARE
EXPECTED TO COMBINE WITH HOT TEMPERATURES TO MAKE IT FEEL LIKE IT
IS 105 DEGREES OR GREATER. PERSONS IN THE WARNED AREA ARE ADVISED
TO AVOID PROLONGED WORK IN THE SUN OR IN POORLY VENTILATED AREAS.

$$
000 
WWUS71 KPHI 271553
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1153 AM EDT WED JUN 27 2007

DEZ001-NJZ015-017>019-PAZ067>071-272300-
/O.CON.KPHI.EH.W.0001.070627T1600Z-070627T2300Z/
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
1153 AM EDT WED JUN 27 2007

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS
EVENING...

AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS
EVENING FOR THE HIGHLY URBANIZED AREAS OF THE DELAWARE VALLEY. 

HIGH TEMPERATURES TODAY WILL CLIMB INTO THE LOWER AND MID 90S
OVER THE HIGHLY URBANIZED AREAS IN AND NEAR PHILADELPHIA. THE
HEAT...COMBINED WITH AFTERNOON DEW POINTS AROUND 70...WILL RESULT
IN HEAT INDICES AROUND OR A BIT ABOVE 100 DEGREES.

A HEAT WARNING FOR THE HIGHLY URBANIZED AREAS MEANS THAT A PERIOD
OF CONSECUTIVE DAYS OF HOT TEMPERATURES IS OCCURRING IN THE
PHILADELPHIA METROPOLITAN AREA. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL CREATE A SITUATION IN WHICH
HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN
AIR-CONDITIONED OR WELL VENTILATED PLACE...STAY OUT OF THE SUN...
AND CHECK ON RELATIVES AND NEIGHBORS.

PLEASE MAKE SURE THAT PETS AND ANIMALS HAVE...AT A MINIMUM...
ACCESS TO A SHADY AND WELL-VENTILATED PLACE AND PLENTY OF COOL
WATER. THE MOST HUMANE THING TO DO IS TO BRING THEM INTO AN AIR
CONDITIONED ENVIRONMENT.

FINALLY...NEVER LEAVE ANY PERSON OR ANIMAL UNATTENDED IN A
VEHICLE FOR ANY LENGTH OF TIME.

MORE CLOUDS AND POSSIBLY MORE WIDESPREAD PRECIPITATION ARE
FORECAST TO LEAD TO SLIGHTLY LESS HOT TEMPERATURES FOR THURSDAY.
HOWEVER...HUMIDITIES WILL CONTINUE TO BE HIGH...AND HEAT INDICES
COULD APPROACH 100 THURSDAY AFTERNOON.

AN EXCESSIVE HEAT WARNING FOR THE HIGHLY URBANIZED AREAS IS
ISSUED WHEN THE HEAT AND HUMIDITY CAN COMBINE TO BECOME LIFE-
THREATENING IN NON-AIR CONDITIONED URBAN ENVIRONMENTS. PEOPLE IN
THE WARNED AREA ARE ADVISED TO AVOID PROLONGED WORK IN THE SUN OR
IN POORLY VENTILATED AREAS.

$$

MPD
000 
WWUS71 KPHI 271942
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
342 PM EDT WED JUN 27 2007

DEZ001-NJZ015-017>019-PAZ067>071-272330-
/O.NEW.KPHI.EH.W.0002.070628T1600Z-070628T2300Z/
/O.CON.KPHI.EH.W.0001.000000T0000Z-070627T2300Z/
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
342 PM EDT WED JUN 27 2007

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS
EVENING...
...EXCESSIVE HEAT WARNING IN EFFECT FROM 12 PM TO 7 PM EDT
THURSDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED AN
EXCESSIVE HEAT WARNING...WHICH IS IN EFFECT FROM 12 PM TO 7 PM
EDT THURSDAY. 

AN EXCESSIVE HEAT WARNING ALSO REMAINS IN EFFECT UNTIL 7 PM EDT
THIS EVENING.

HIGH TEMPERATURES WILL CLIMB INTO THE LOWER 90S OVER THE HIGHLY
URBANIZED AREAS IN AND NEAR PHILADELPHIA ON THURSDAY. THE
HEAT...COMBINED WITH AFTERNOON DEW POINTS AROUND 70...WILL RESULT
IN HEAT INDICES APPROACHING 100 DEGREES.

A HEAT WARNING FOR THE HIGHLY URBANIZED AREAS MEANS THAT A PERIOD
OF CONSECUTIVE DAYS OF HOT TEMPERATURES IS OCCURRING IN THE
PHILADELPHIA METROPOLITAN AREA. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL CREATE A SITUATION IN WHICH
HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN
AIR-CONDITIONED OR WELL VENTILATED PLACE...STAY OUT OF THE SUN...
AND CHECK ON RELATIVES AND NEIGHBORS.

PLEASE MAKE SURE THAT PETS AND ANIMALS HAVE...AT A MINIMUM...
ACCESS TO A SHADY AND WELL-VENTILATED PLACE AND PLENTY OF COOL
WATER. THE MOST HUMANE THING TO DO IS TO BRING THEM INTO AN AIR
CONDITIONED ENVIRONMENT.

PLEASE DO NOT LEAVE ANY PERSON OR ANIMAL UNATTENDED IN A VEHICLE
FOR ANY LENGTH OR TIME.

AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS WILL BRING SOME
RELIEF FROM THE HEAT ON THURSDAY. AS A COLD FRONT CROSSES THE
REGION THURSDAY NIGHT...THE HEAT SPELL WILL COME TO AN END WITH
MORE PLEASANT TEMPERATURES AND HUMIDITIES FRIDAY THROUGH THE
WEEKEND.

AN EXCESSIVE HEAT WARNING IS ISSUED FOR THE HIGHLY URBANIZED AREAS
WHEN THE COMBINATION OF HEAT AND HUMIDITY CAN BECOME LIFE-THREATENING.
PEOPLE IN THE WARNED AREA ARE ADVISED TO AVOID PROLONGED WORK IN
SUN OR IN POORLY VENTILATED AREAS. ALSO...KEEP PLENTY OF LIQUIDS ON
HAND AND TRY TO STAY IN AN AIR CONDITIONED ENVIRONMENT.

$$

NIERENBERG
000 
WWUS71 KPHI 272302
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
702 PM EDT WED JUN 27 2007

DEZ001-NJZ015-017>019-PAZ067>071-281000-
/O.EXP.KPHI.EH.W.0001.000000T0000Z-070627T2300Z/
/O.CON.KPHI.EH.W.0002.070628T1600Z-070628T2300Z/
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
702 PM EDT WED JUN 27 2007

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 12 PM TO 7 PM
EDT THURSDAY...
...EXCESSIVE HEAT WARNING HAS EXPIRED...

THE EXCESSIVE HEAT WARNING FOR TODAY IS NO LONGER IN EFFECT. AN
EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 12 PM TO 7 PM EDT
THURSDAY.

HIGH TEMPERATURES WILL CLIMB INTO THE LOWER 90S OVER THE HIGHLY
URBANIZED AREAS IN AND NEAR PHILADELPHIA ON THURSDAY. THE HEAT...
COMBINED WITH AFTERNOON DEW POINTS AROUND 70...WILL RESULT IN HEAT
INDICES APPROACHING 100 DEGREES.

A HEAT WARNING FOR THE HIGHLY URBANIZED AREAS MEANS THAT A PERIOD
OF CONSECUTIVE DAYS OF HOT TEMPERATURES IS OCCURRING IN THE
PHILADELPHIA METROPOLITAN AREA. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL CREATE A SITUATION IN WHICH
HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN
AIR-CONDITIONED OR WELL VENTILATED PLACE...STAY OUT OF THE SUN...
AND CHECK ON RELATIVES AND NEIGHBORS.

PLEASE MAKE SURE THAT PETS AND ANIMALS HAVE...AT A MINIMUM...
ACCESS TO A SHADY AND WELL-VENTILATED PLACE AND PLENTY OF COOL
WATER. THE MOST HUMANE THING TO DO IS TO BRING THEM INTO AN AIR
CONDITIONED ENVIRONMENT.

PLEASE DO NOT LEAVE ANY PERSON OR ANIMAL UNATTENDED IN A VEHICLE
FOR ANY LENGTH OR TIME.

AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS WILL BRING SOME
RELIEF FROM THE HEAT ON THURSDAY. AS A COLD FRONT CROSSES THE
REGION THURSDAY NIGHT...THE HEAT SPELL WILL COME TO AN END WITH
MORE PLEASANT TEMPERATURES AND HUMIDITIES FRIDAY THROUGH THE
WEEKEND.

AN EXCESSIVE HEAT WARNING IS ISSUED FOR THE HIGHLY URBANIZED
AREAS WHEN THE COMBINATION OF HEAT AND HUMIDITY CAN BECOME LIFE-
THREATENING. PEOPLE IN THE WARNED AREA ARE ADVISED TO AVOID
PROLONGED WORK IN SUN OR IN POORLY VENTILATED AREAS. ALSO...KEEP
PLENTY OF LIQUIDS ON HAND AND TRY TO STAY IN AN AIR CONDITIONED
ENVIRONMENT.


$$

NIERENBERG

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 5:03 AM EDTExcessive Heat WatchPHIBurlington, Camden, Gloucester, Mercer11 hr
Jun 26, 5:03 AM EDTHeat AdvisoryPHIBurlington, Camden, Gloucester, Mercer14 hr
Jun 26, 4:26 PM EDTExcessive Heat WatchPHIBurlington, Camden, Gloucester, Mercer12 hr

Nearby

Excessive Heat Warnings in New Jersey, 2007Excessive Heat Warnings in Pennsylvania, 2007Excessive Heat Warnings in Delaware, 2007Every excessive heat warning in 2007

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.