Alert archive / New Jersey / Excessive Heat Watches in 2007

Excessive Heat Watch 3, NWS Philadelphia/Mount Holly

July 6, 2007Delaware County, Philadelphia County, Pennsylvania; New Castle County, Delaware; 4 counties in New Jersey

NWS Philadelphia/Mount Holly issued this excessive heat watch at Jul 6, 2007, 2:10 PM EDT for Delaware County, Philadelphia County, Pennsylvania; New Castle County, Delaware; 4 counties in New Jersey. It took effect at Jul 9, 2007, 12:00 PM EDT. It was in force for .

The area

The counties it named.

The facts

Issued
Jul 6, 2007, 2:10 PM EDT (18:10 UTC)
In effect from
Jul 9, 2007, 12:00 PM EDT
Expired
Jul 8, 2007, 2:27 PM EDT
In force
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 radar

The Philadelphia radar (KDIX), 59 km from the middle of the area, began a volume at 18:10 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 12:00Z, 6.2 hours before the alert went out and 218 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 12:00Z on 2007-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 39 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2007-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -45 square meters per square second.1939587897Sfc1 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
39 J/kg
Mixed-layer CIN
-154 J/kg
Mixed-layer LCL
962 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
-45 m²/s²
0-3 km storm-relative helicity
8 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

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

000 
WWUS71 KPHI 061810
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
210 PM EDT FRI JUL 6 2007

DEZ001-NJZ015-017>019-PAZ067>071-071000-
/O.NEW.KPHI.EH.A.0003.070708T1500Z-070709T2200Z/
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
210 PM EDT FRI JUL 6 2007

...EXCESSIVE HEAT WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
MONDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED AN
EXCESSIVE HEAT WATCH...WHICH IS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY AFTERNOON. 

THE COMBINATION OF HIGH TEMPERATURES IN THE MID TO UPPER 90S AND
INCREASING HUMIDITIES WILL CREATE HEAT INDEX VALUES WHICH WILL
APPROACH 100 DEGREES ON SUNDAY AFTERNOON AND BE A COUPLE DEGREES
HIGHER ON MONDAY AFTERNOON. 

HEAT INDEX VALUES AROUND 100 CAN CREATE A SITUATION IN WHICH HEAT
ILLNESSES ARE POSSIBLE. ADDITIONALLY, LOW TEMPERATURES WILL REMAIN
QUITE WARM, WITH VALUES IN THE 70S IN THE URBAN AREAS AND AROUND
70 ELSEWHERE.

IT WILL BECOME NECESSARY TO FOLLOW SOME COMMON-SENSE SAFETY RULES
TO AVOID HEALTH PROBLEMS FROM THE HEAT. WEAR LIGHT-COLORED AND
LOOSE-FITTING CLOTHING...DRINK PLENTY OF NON-ALCOHOLIC FLUIDS...STAY
OUT OF THE SUN...STAY IN AN AIR-CONDITIONED OR WELL VENTILATED
PLACE...AND CHECK ON ELDERLY RELATIVES AND NEIGHBORS. ALSO, AVOID
STRENUOUS OR PROLONGED WORK IN THE SUN OR IN POORLY VENTILATED
AREAS. ALSO, PLEASE MAKE SURE THAT PETS AND ANIMALS HAVE ACCESS TO
A SHADY AND WELL-VENTILATED PLACE AND PLENTY OF COOL WATER. 

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

THE EXCESSIVE HEAT WATCH MAY NEED TO BE EXTENDED INTO TUESDAY.


$$

NIERENBERG
7 follow-up statements
000 
WWUS71 KPHI 070803
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
403 AM EDT SAT JUL 7 2007

DEZ001-NJZ015-017>019-PAZ067>071-072100-
/O.CON.KPHI.EH.A.0003.070708T1500Z-070709T2200Z/
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
403 AM EDT SAT JUL 7 2007

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY AFTERNOON...

AN EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY AFTERNOON. 

THE COMBINATION OF HIGH TEMPERATURES IN THE MID TO UPPER 90S AND
INCREASING HUMIDITIES WILL CREATE HEAT INDEX VALUES WHICH WILL
APPROACH 100 DEGREES ON SUNDAY AFTERNOON AND AROUND 100 DEGREES ON
MONDAY AFTERNOON.

HEAT INDEX VALUES AROUND 100 DEGREES CAN CREATE A SITUATION IN
WHICH HEAT ILLNESSES ARE POSSIBLE. THIS IS ESPECIALLY TRUE IF THIS
OCCURS OVER A NUMBER OF DAYS. ADDITIONALLY...LOW TEMPERATURES WILL
REMAIN QUITE WARM...WITH WIDESPREAD VALUES IN THE 70S STARTING
SUNDAY NIGHT IN THE URBAN AREAS AND AROUND 70 ELSEWHERE.

IT WILL BECOME NECESSARY TO FOLLOW SOME COMMON-SENSE SAFETY RULES
TO AVOID HEALTH PROBLEMS FROM THE HEAT. WEAR LIGHT-COLORED AND
LOOSE-FITTING CLOTHING...DRINK PLENTY OF NON-ALCOHOLIC FLUIDS...
STAY OUT OF THE SUN...STAY IN AN AIR-CONDITIONED OR WELL
VENTILATED PLACE...AND CHECK ON ELDERLY RELATIVES AND NEIGHBORS.
ALSO... AVOID STRENUOUS OR PROLONGED WORK IN THE SUN OR IN POORLY
VENTILATED AREAS. PLEASE CHECK ON THE ELDERLY. DO NOT ASSUME THAT
CHILDREN AND TEENAGERS IN CAMPS OR PARTICIPATING IN SPORTS
TOURNAMENTS ARE IMMUNE TO THE EFFECTS OF THE HEAT. PLEASE MAKE SURE
THEY DRINK PLENTY OF FLUIDS AND GIVE SERIOUS CONSIDERATION TO
CANCELING OR POSTPONING STRENUOUS ACTIVITIES. ALSO...PLEASE MAKE
SURE THAT PETS AND ANIMALS HAVE ACCESS TO A SHADY AND WELL-
VENTILATED PLACE AND PLENTY OF COOL WATER.

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

PLEASE LOOK FOR UPDATES LATER TODAY. IF CURRENT FORECASTS TRENDS
CONTINUE IT MAY BECOME NECESSARY TO ISSUE EITHER A HEAT ADVISORY
OR EXCESSIVE HEAT WARNING LATER TODAY. A WEAK FRONT IS EXPECTED TO
DISSIPATE ACROSS THE AREA ON TUESDAY. DEPENDING UPON HOW MANY
LINGERING CLOUDS ARE OR ARE NOT AROUND THEN, EXCESSIVE HEAT MIGHT
PERSIST INTO TUESDAY AND EVEN WEDNESDAY. 

$$

TFG
000 
WWUS71 KPHI 071155 CCA
NPWPHI

URGENT - WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
753 AM EDT SAT JUL 7 2007

DEZ001-NJZ015-017>019-PAZ067>071-080100-
/O.COR.KPHI.EH.A.0003.070708T1500Z-070709T2200Z/
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
753 AM EDT SAT JUL 7 2007

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY AFTERNOON...

AN EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY AFTERNOON. 

THE COMBINATION OF HIGH TEMPERATURES IN THE MID TO UPPER 90S AND
INCREASING HUMIDITIES WILL CREATE HEAT INDEX VALUES WHICH WILL
APPROACH 100 DEGREES ON SUNDAY AFTERNOON AND AROUND 100 DEGREES ON
MONDAY AFTERNOON.

HEAT INDEX VALUES AROUND 100 DEGREES CAN CREATE A SITUATION IN
WHICH HEAT ILLNESSES ARE POSSIBLE. THIS IS ESPECIALLY TRUE IF THIS
OCCURS OVER A NUMBER OF DAYS. ADDITIONALLY...LOW TEMPERATURES WILL
REMAIN QUITE WARM...WITH WIDESPREAD VALUES IN THE 70S STARTING
SUNDAY NIGHT IN THE URBAN AREAS AND AROUND 70 ELSEWHERE.

IT WILL BECOME NECESSARY TO FOLLOW SOME COMMON-SENSE SAFETY RULES
TO AVOID HEALTH PROBLEMS FROM THE HEAT. WEAR LIGHT-COLORED AND
LOOSE-FITTING CLOTHING...DRINK PLENTY OF NON-ALCOHOLIC FLUIDS...
STAY OUT OF THE SUN...STAY IN AN AIR-CONDITIONED OR WELL
VENTILATED PLACE...AND CHECK ON ELDERLY RELATIVES AND NEIGHBORS.
ALSO... AVOID STRENUOUS OR PROLONGED WORK IN THE SUN OR IN POORLY
VENTILATED AREAS. PLEASE CHECK ON THE ELDERLY. DO NOT ASSUME THAT
CHILDREN AND TEENAGERS IN CAMPS OR PARTICIPATING IN SPORTS
TOURNAMENTS ARE IMMUNE TO THE EFFECTS OF THE HEAT. PLEASE MAKE SURE
THEY DRINK PLENTY OF FLUIDS AND GIVE SERIOUS CONSIDERATION TO
CANCELING OR POSTPONING STRENUOUS ACTIVITIES. ALSO...PLEASE MAKE
SURE THAT PETS AND ANIMALS HAVE ACCESS TO A SHADY AND WELL-
VENTILATED PLACE AND PLENTY OF COOL WATER.

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

PLEASE LOOK FOR UPDATES LATER TODAY. IF CURRENT FORECAST TRENDS
CONTINUE IT MAY BECOME NECESSARY TO ISSUE EITHER A HEAT ADVISORY
OR EXCESSIVE HEAT WARNING LATER TODAY. A WEAK FRONT IS EXPECTED TO
DISSIPATE ACROSS THE AREA ON TUESDAY. DEPENDING UPON HOW MANY
LINGERING CLOUDS ARE OR ARE NOT AROUND THEN, EXCESSIVE HEAT MIGHT
PERSIST INTO TUESDAY AND EVEN WEDNESDAY.

$$

TFG
000 
WWUS71 KPHI 072032
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
432 PM EDT SAT JUL 7 2007

DEZ001-NJZ015-017>019-PAZ067>071-081000-
/O.EXT.KPHI.EH.A.0003.070708T1700Z-070709T2200Z/
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
432 PM EDT SAT JUL 7 2007

...EXCESSIVE HEAT WATCH NOW IN EFFECT FROM SUNDAY AFTERNOON
THROUGH MONDAY AFTERNOON...

THE EXCESSIVE HEAT WATCH IS NOW IN EFFECT FROM SUNDAY AFTERNOON
THROUGH MONDAY AFTERNOON. 

HIGH TEMPERATURES ARE FORECAST TO BE IN THE MID 90S SUNDAY AND
MID TO UPPER 90S MONDAY. THESE HOT TEMPERATURES COMBINED WITH
INCREASING HUMIDITY LEVELS WILL CREATE HEAT INDEX VALUES WELL
INTO THE 90S ON SUNDAY AFTERNOON AND AROUND 100 DEGREES ON MONDAY
AFTERNOON.

BOTH SUNDAY AND MONDAY WILL BE HOT, BUT THE HUMIDITY WILL BE WORSE
ON MONDAY. 

HEAT INDEX VALUES AROUND 100 DEGREES CAN CREATE A SITUATION IN
WHICH HEAT ILLNESSES ARE POSSIBLE. THIS IS ESPECIALLY TRUE IF
THIS OCCURS OVER A NUMBER OF DAYS. ADDITIONALLY...LOW
TEMPERATURES WILL REMAIN QUITE WARM...WITH WIDESPREAD VALUES IN
THE 70S STARTING SUNDAY NIGHT IN THE URBAN AREAS AND AROUND 70
ELSEWHERE.

IT WILL BECOME NECESSARY TO FOLLOW SOME COMMON-SENSE SAFETY RULES
TO AVOID HEALTH PROBLEMS FROM THE HEAT. WEAR LIGHT-COLORED AND
LOOSE-FITTING CLOTHING...DRINK PLENTY OF NON-ALCOHOLIC FLUIDS...
STAY OUT OF THE SUN...STAY IN AN AIR-CONDITIONED OR WELL
VENTILATED PLACE...AND CHECK ON ELDERLY RELATIVES AND NEIGHBORS.
ALSO... AVOID STRENUOUS OR PROLONGED WORK IN THE SUN OR IN POORLY
VENTILATED AREAS. PLEASE CHECK ON THE ELDERLY. DO NOT ASSUME THAT
CHILDREN AND TEENAGERS IN CAMPS OR PARTICIPATING IN SPORTS
TOURNAMENTS ARE IMMUNE TO THE EFFECTS OF THE HEAT. PLEASE MAKE
SURE THEY DRINK PLENTY OF FLUIDS AND GIVE SERIOUS CONSIDERATION
TO CANCELING OR POSTPONING STRENUOUS ACTIVITIES. ALSO...PLEASE
MAKE SURE THAT PETS AND ANIMALS HAVE ACCESS TO A SHADY AND WELL-
VENTILATED PLACE AND PLENTY OF COOL WATER.

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

IF CURRENT FORECAST TRENDS CONTINUE IT MAY BECOME NECESSARY TO
ISSUE EITHER A HEAT ADVISORY OR EXCESSIVE HEAT WARNING EARLY
SUNDAY. A WEAK FRONT IS EXPECTED TO DISSIPATE ACROSS THE AREA ON
TUESDAY. DEPENDING UPON HOW MANY LINGERING CLOUDS ARE OR ARE NOT
AROUND THEN... EXCESSIVE HEAT MIGHT PERSIST INTO TUESDAY AND EVEN
WEDNESDAY.

$$

RNS/GORSE
000 
WWUS71 KPHI 080858
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
458 AM EDT SUN JUL 8 2007

DEZ001-NJZ015-017>019-PAZ067>071-081700-
/O.NEW.KPHI.HT.Y.0003.070708T1700Z-070709T0000Z/
/O.EXT.KPHI.EH.A.0003.070709T1600Z-070710T0000Z/
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
458 AM EDT SUN JUL 8 2007

...HEAT ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM EDT
THIS EVENING...
...EXCESSIVE HEAT WATCH NOW IN EFFECT FROM MONDAY AFTERNOON
THROUGH MONDAY EVENING...

HIGH TEMPERATURES ARE FORECAST TO BE IN THE MID 90S TODAY AND
MID TO UPPER 90S MONDAY. THESE HOT TEMPERATURES COMBINED WITH
INCREASING HUMIDITY LEVELS WILL CREATE HEAT INDEX VALUES BETWEEN 
95 AND 100 DEGREES ON SUNDAY AFTERNOON AND CLOSER TO 100 DEGREES
ON MONDAY AFTERNOON.

BOTH SUNDAY AND MONDAY WILL BE HOT...BUT THE HUMIDITY WILL BE
WORSE ON MONDAY.

HEAT INDEX VALUES AROUND 100 DEGREES CAN CREATE A SITUATION IN
WHICH HEAT ILLNESSES ARE POSSIBLE. THIS IS ESPECIALLY TRUE IF
THIS OCCURS OVER A NUMBER OF DAYS. ADDITIONALLY...LOW
TEMPERATURES WILL REMAIN QUITE WARM...WITH WIDESPREAD VALUES IN
THE 70S STARTING SUNDAY NIGHT IN THE URBAN AREAS AND AROUND
70 ELSEWHERE.

IT WILL BECOME NECESSARY TO FOLLOW SOME COMMON-SENSE SAFETY RULES
TO AVOID HEALTH PROBLEMS FROM THE HEAT. WEAR LIGHT-COLORED AND
LOOSE-FITTING CLOTHING...DRINK PLENTY OF NON-ALCOHOLIC FLUIDS...
STAY OUT OF THE SUNSHINE...STAY IN AN AIR-CONDITIONED OR WELL
VENTILATED PLACE...AND CHECK ON ELDERLY RELATIVES AND NEIGHBORS.
ALSO... AVOID STRENUOUS OR PROLONGED WORK IN THE SUNSHINE OR IN
POORLY VENTILATED AREAS. PLEASE CHECK ON THE ELDERLY. DO NOT
ASSUME THAT CHILDREN AND TEENAGERS IN CAMPS OR PARTICIPATING IN
SPORTS TOURNAMENTS ARE IMMUNE TO THE EFFECTS OF THE HEAT. PLEASE
MAKE SURE THEY DRINK PLENTY OF FLUIDS AND GIVE SERIOUS
CONSIDERATION TO CANCELING OR POSTPONING STRENUOUS ACTIVITIES.
ALSO...PLEASE MAKE SURE THAT PETS AND ANIMALS HAVE ACCESS TO A
SHADY AND WELL- VENTILATED PLACE AND PLENTY OF COOL WATER.

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

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 SUNSHINE...AND CHECK UP ON RELATIVES AND
NEIGHBORS.

$$

ROBERTSON/OHARA
000 
WWUS71 KPHI 081551
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1151 AM EDT SUN JUL 8 2007

DEZ001-NJZ015-017>019-PAZ067>071-082100-
/O.CON.KPHI.HT.Y.0003.070708T1700Z-070709T0000Z/
/O.CON.KPHI.EH.A.0003.070709T1600Z-070710T0000Z/
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
1151 AM EDT SUN JUL 8 2007

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON
THROUGH MONDAY EVENING...

A HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING. AN
EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON
THROUGH MONDAY EVENING. 

TEMPERATURES ARE EXPECTED TO TOP OUT AROUND 95 DEGREES THIS 
AFTERNOON, AND THE MID TO UPPER 90S ON MONDAY. THESE HOT 
TEMPERATURES COMBINED WITH AN INCREASE IN THE HUMIDITY WILL PRODUCE 
HEAT INDEX VALUES WELL INTO THE 90S THIS AFTERNOON, WITH THE HIGHLY 
URBANIZED AREAS APPROACHING 100 DEGREES. ON MONDAY, THE HUMIDITY 
ALONG WITH THE HIGH TEMPERATURES ARE FORECAST TO BE A LITTLE HIGHER, 
THEREFORE THE HEAT INDEX VALUES WILL BE AROUND 100 DEGREES IN THE
AFTERNOON.

HEAT INDEX VALUES AROUND 100 DEGREES CAN CREATE A SITUATION IN WHICH 
HEAT ILLNESSES ARE POSSIBLE, ESPECIALLY IF THIS OCCURS OVER A NUMBER 
OF DAYS. ADDITIONALLY, OVERNIGHT LOW TEMPERATURES WILL REMAIN QUITE 
WARM, WITH MID 70S STARTING TONIGHT IN THE URBAN AREAS AND AROUND 70 
ELSEWHERE.

TO STAY SAFE DURING THE HOT AND HUMID WEATHER, FOLLOW SOME COMMON 
SENSE SAFETY RULES TO AVOID HEALTH PROBLEMS. THESE INCLUDE, WEAR 
LIGHT-COLORED AND LOOSE-FITTING CLOTHING, DRINK PLENTY OF 
NON-ALCOHOLIC FLUIDS, STAY OUT OF THE SUNSHINE, STAY IN AN AIR 
CONDITIONED OR WELL VENTILATED PLACE, AND CHECK ON ELDERLY RELATIVES 
AND NEIGHBORS. ALSO, AVOID STRENUOUS OR PROLONGED WORK IN THE 
SUNSHINE OR IN POORLY VENTILATED AREAS. DO NOT ASSUME THAT CHILDREN 
AND TEENAGERS IN CAMPS OR PARTICIPATING IN SPORTS TOURNAMENTS ARE 
IMMUNE TO THE EFFECTS OF THE HEAT. MAKE SURE THEY DRINK PLENTY OF 
FLUIDS AND GIVE SERIOUS CONSIDERATION TO LIMITING OR POSTPONING 
STRENUOUS ACTIVITIES. ALSO, MAKE SURE THAT PETS AND ANIMALS HAVE 
ACCESS TO A SHADY AND WELL VENTILATED PLACE WITH PLENTY OF COOL 
WATER.

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

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGHER HUMIDITY
WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE 
POSSIBLE.

AN EXCESSIVE HEAT WATCH MEANS THAT THE COMBINATION OF HEAT AND
HUMIDITY WILL ELEVATE THE RISK OF MORE SERIOUS HEAT RELATED
ILLNESSES INCLUDING HEAT STROKE.

$$

GORSE
000 
WWUS71 KPHI 081601
NPWPHI

URGENT - WEATHER MESSAGE...RESENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1201 PM EDT SUN JUL 8 2007

DEZ001-NJZ015-017>019-PAZ067>071-082130-
/O.CON.KPHI.HT.Y.0003.070708T1700Z-070709T0000Z/
/O.CON.KPHI.EH.A.0003.070709T1600Z-070710T0000Z/
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
1201 PM EDT SUN JUL 8 2007

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON
THROUGH MONDAY EVENING...

A HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING. AN
EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON
THROUGH MONDAY EVENING. 

TEMPERATURES ARE EXPECTED TO TOP OUT AROUND 95 DEGREES THIS 
AFTERNOON, AND THE MID TO UPPER 90S ON MONDAY. THESE HOT 
TEMPERATURES COMBINED WITH AN INCREASE IN THE HUMIDITY WILL PRODUCE 
HEAT INDEX VALUES WELL INTO THE 90S THIS AFTERNOON, WITH THE HIGHLY 
URBANIZED AREAS APPROACHING 100 DEGREES. ON MONDAY, THE HUMIDITY 
ALONG WITH THE HIGH TEMPERATURES ARE FORECAST TO BE A LITTLE HIGHER, 
THEREFORE THE HEAT INDEX VALUES WILL BE AROUND 100 DEGREES IN THE
AFTERNOON.

HEAT INDEX VALUES AROUND 100 DEGREES CAN CREATE A SITUATION IN WHICH 
HEAT ILLNESSES ARE POSSIBLE, ESPECIALLY IF THIS OCCURS OVER A NUMBER 
OF DAYS. ADDITIONALLY, OVERNIGHT LOW TEMPERATURES WILL REMAIN QUITE 
WARM, WITH MID 70S STARTING TONIGHT IN THE URBAN AREAS AND AROUND 70 
ELSEWHERE.

TO STAY SAFE DURING THE HOT AND HUMID WEATHER, FOLLOW SOME COMMON 
SENSE SAFETY RULES TO AVOID HEALTH PROBLEMS. THESE INCLUDE, WEAR 
LIGHT-COLORED AND LOOSE-FITTING CLOTHING, DRINK PLENTY OF 
NON-ALCOHOLIC FLUIDS, STAY OUT OF THE SUNSHINE, STAY IN AN AIR 
CONDITIONED OR WELL VENTILATED PLACE, AND CHECK ON ELDERLY RELATIVES 
AND NEIGHBORS. ALSO, AVOID STRENUOUS OR PROLONGED WORK IN THE 
SUNSHINE OR IN POORLY VENTILATED AREAS. DO NOT ASSUME THAT CHILDREN 
AND TEENAGERS IN CAMPS OR PARTICIPATING IN SPORTS TOURNAMENTS ARE 
IMMUNE TO THE EFFECTS OF THE HEAT. MAKE SURE THEY DRINK PLENTY OF 
FLUIDS AND GIVE SERIOUS CONSIDERATION TO LIMITING OR POSTPONING 
STRENUOUS ACTIVITIES. ALSO, MAKE SURE THAT PETS AND ANIMALS HAVE 
ACCESS TO A SHADY AND WELL VENTILATED PLACE WITH PLENTY OF COOL 
WATER.

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

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGHER HUMIDITY
WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE 
POSSIBLE.

AN EXCESSIVE HEAT WATCH MEANS THAT THE COMBINATION OF HEAT AND
HUMIDITY WILL ELEVATE THE RISK OF MORE SERIOUS HEAT RELATED
ILLNESSES INCLUDING HEAT STROKE.

$$

GORSE
000 
WWUS71 KPHI 081827
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
227 PM EDT SUN JUL 8 2007

DEZ001-NJZ015-017>019-PAZ067>071-090100-
/O.CAN.KPHI.HT.Y.0003.000000T0000Z-070709T0000Z/
/O.UPG.KPHI.EH.A.0003.070709T1600Z-070710T0000Z/
/O.NEW.KPHI.EH.W.0003.070709T1600Z-070710T2200Z/
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
227 PM EDT SUN JUL 8 2007

...EXCESSIVE HEAT WARNING IN EFFECT FROM 12 PM MONDAY TO 6 PM EDT
TUESDAY...
...HEAT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED AN
EXCESSIVE HEAT WARNING...WHICH IS IN EFFECT FROM NOON MONDAY TO
6 PM EDT TUESDAY. THE HEAT ADVISORY THAT WAS IN EFFECT FOR SUNDAY 
HAS BEEN CANCELLED. THE EXCESSIVE HEAT WATCH IS NO LONGER IN
EFFECT.

TEMPERATURES REACHED THE LOWER AND MIDDLE 90S TODAY. HOWEVER, AS
THE TEMPERATURES PEAKED, THE HUMIDITY DROPPED, ALLEVIATING SOME
OF THE EXCESSIVENESS TO THE HEAT. 

MONDAY IS EXPECTED TO BE THE HOTTEST DAY FOR THIS HEAT WAVE AS
TEMPERATURES WILL PEAK IN THE UPPER 90S. HUMIDITY WILL ALSO BE
HIGHER THAN TODAY CAUSING THE HEAT INDEX TO INCREASE TO 100 TO
105. TUESDAY WILL SEE HIGH TEMPERATURES IN THE MIDDLE 90S,
HOWEVER, THE HUMIDITY IS EXPECTED TO REMAIN HIGH OR BE A BIT
HIGHER THAN ON MONDAY CAUSING THE HEAT INDEX TO AGAIN REACH 100 TO
105.

WEDNESDAY IS ALSO EXPECTED TO BE QUITE HUMID, BUT THE HIGH
TEMPERATURES SHOULD ONLY REACH THE LOWER 90S DUE TO MORE CLOUD
COVER AND THE POSSIBILITY OF THUNDERSTORMS. STUDIES HAVE SHOWN
THAT THE LONGER EXCESSIVE HEAT LASTS, THE MORE IT CAN BE LIFE
THREATENING, AND THE DANGER FROM THE EXCESSIVE HEAT COULD EXTEND
INTO WEDNESDAY.

RELIEF FROM THE HEAT AND HUMIDITY SHOULD ARRIVE IN THE FORM OF A
COLD FRONT ON THURSDAY.

HEAT INDEX VALUES OVER 100 DEGREES CAN CREATE A SITUATION IN
WHICH HEAT ILLNESSES ARE POSSIBLE...ESPECIALLY IF THIS OCCURS
OVER A NUMBER OF DAYS. ADDITIONALLY...OVERNIGHT LOW TEMPERATURES
WILL REMAIN QUITE WARM. THE LOW TEMPERATURES ON MONDAY NIGHT WILL
ONLY DROP INTO THE 70S, HOWEVER, MOST OF THE NIGHT WILL SEE
TEMPERATURES ABOUT 80, ESPECIALLY IN CENTER CITY PHILADELPHIA.

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO 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. ALSO, NEVER LEAVE
ANY PERSON OR ANIMAL UNATTENDED IN A VEHICLE FOR ANY LENGTH OF
TIME.


$$

RNS

What forecasters said that day

The local office's own words before this excessive heat watch 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 excessive heat watch went out at Jul 6, 10:54 AM EDT, 3 hours 16 minutes earlier.

Area forecast discussion, Jul 6, 10:54 AM EDT, 3 hours 16 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1054 AM EDT FRI JUL 6 2007

.SYNOPSIS...
A COOL FRONT HAS CLEARED THE AREA, WITH ANOTHER COOL FRONT OR
SURFACE TROUGH POISED TO CROSS THE REGION THIS AFTERNOON. WARMER
WEATHER IS EXPECTED BEHIND THESE BOUNDARIES THOUGH THAN WHAT
PRECEDED IT THE LAST TWO DAYS. WEAK HIGH PRESSURE WILL BUILD IN OVER
THE WEEKEND AND ALONG FOR THE RIDE WILL BE SOME OF THE UNSEASONABLY
HOT WEATHER THAT HAS BEEN OCCURRING IN THE ROCKY MOUNTAIN STATES.
ANOTHER FRONTAL BOUNDARY IS EXPECTED TO STALL NEAR THE AREA TUESDAY,
THEN RETURN NORTH AS A WARM FRONT BEFORE ANOTHER COLD FRONT MOVES
THROUGH THE AREA BY THE END OF THE WEEK.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
A COOL FRONT HAS MOVED EAST OF THE REGION, THOUGH A SURFACE TROUGH
LINGERS NEARBY. A DECENT AMOUNT OF SUNSHINE THIS MORNING FOR MOST,
HOWEVER CONVECTIVE TEMPERATURES IN THE 80S WILL ALLOW CU TO DEVELOP
ESPECIALLY THE FARTHER INLAND ONE GETS. SOME CU IS ALREADY
DEVELOPING ACROSS THE WESTERN ZONES. THE MAIN FORECAST CHALLENGE
THROUGH THIS AFTERNOON WILL BE ANY CONVECTIVE DEVELOPMENT. WATER
VAPOR IMAGERY SHOWS A SHORT WAVE MOVING ACROSS THE EASTERN GREAT
LAKES THIS MORNING, WITH A SECONDARY COOL FRONT AT THE SURFACE.
ALOFT, A FAIRLY SHARP TROUGH IS PRESENT AND WILL BE SWINGING ACROSS
THE AREA. THE MAIN LIFT APPEARS TO REMAIN FOCUSED UP ACROSS THE
NORTHERN ZONES AND LOCATIONS NORTHBOUND, AND THIS IS CONSISTENT WITH
THE PREVIOUS THINKING. SOUNDINGS CONTINUE TO SHOW AN INVERTED-V
PROFILE DEVELOPING IN THE LOWER LEVELS UNDER A DEEP NORTHWESTERLY
FLOW ALONG WITH DRIER AIR ALOFT, WHICH WOULD INDICATE A GUSTY WIND
POTENTIAL. THE DOWNSLOPING FLOW THOUGH WILL REDUCE THE LOW-LEVEL
CONVERGENCE AND STORM ORGANIZATION, PLUS THERE IS WEAK SUBSIDENCE
BEHIND THE INITIAL COOL FRONT. THE 12Z BUF SOUNDING INDICATED MODEST
LAPSE RATES ASSOCIATED WITH A MID LEVEL THERMAL TROUGH, HOWEVER
FURTHER SOUTHWARD THE LAPSE RATES ARE NOT AS STEEP AS THE COLD
POCKET AT 500 MB IS CENTERED ACROSS NEW YORK STATE. FREEZING LEVELS
ARE AROUND 10,000 FEET THOUGH, THEREFORE SOME SMALL HAIL IS POSSIBLE
IN ANY STRONGER STORM THAT POPS. IT APPEARS THAT TERRAIN MAY PLAY
THE MAIN ROLE TO POTENTIALLY PROVIDE FOCUS FOR SOME CONVECTIVE
DEVELOPMENT.

FOR THIS UPDATE, WE MADE LITTLE CHANGES OTHER THAN TO DELAY THE
TIMING SOME WITHIN THE DIGITAL DATABASE TO THE POPS. COVERAGE OF ANY
CONVECTION SHOULD BE ISOLATED TO PERHAPS SCATTERED, WITH THE BEST
CHC UP ACROSS THE NORTHERN ZONES. SPC CONTINUES A SEE TEXT TO OUR
NORTH, AND BASED ON THE IDEA OF CONVECTIVE COVERAGE NOT BEING
WIDESPREAD, WE WILL CONTINUE WITH NO ENHANCED WORDING. THE EASTERN
AND SOUTHERN ZONES ESPECIALLY SHOULD SEE A GOOD AMOUNT OF SUNSHINE
THROUGH THE AFTERNOON DUE TO THE DOWNSLOPE FLOW.

HIGH TEMPERATURES AND THE HOURLY GRIDS WERE ADJUSTED SOME BASED ON
TRENDS SO FAR THIS MORNING.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH SATURDAY NIGHT/...
WITH THE SHORT WAVES EXITING OUR CWA SO WILL THE PCPN THREAT WHICH
FOR NOW WE WILL END PRIOR TO THE START OF THE EVENING. WHL THE AIR
MASS IS NOT COOLER, IT IS DRIER. WITH NOT MANY CLOUDS EXPECTED AND
SOME DECOUPLING THRU THE NGT, WE WILL ACCEPT GUID MIN TEMPS AND LEAN
TWD THE LWR GFS MOS.

ON SAT, CONVECTIVE TEMPS ARE PRETTY HIGH AND WITH FTHR RIDGING ALF,
WE DO NOT EXPECT MUCH IN THE WAY OF CLOUDS. ALSO TMRW WE WILL
FINALLY BE CAPPED. THE WRF-NMM HAS WARMED TWD THE GFS. THE FCSTD
LOW-LVL THICK VALUES ARE CLOSE TO TDY/S ON THE GFS. THUS WE THINK
GFS MOS MAY BE A BIT PREMATURE WITH ITS HIGHER TEMPS FOR SAT AND WE
DID A 50/50 COMP BTWN THE MOS DATASETS. THIS MATCHES THE FCSTD LOW
LEVEL THICKNESSES PRETTY WELL. THE SHORE MAY NOT BE AS MUCH COMFORT
AS USUAL THRU SAT AS THE FLOW LOOKS LIKE IT WILL REMAIN OFSHR FOR
MOST OF THE DAY. SFC HIGH PRESSURE CLOSER TO OUR CWA ON SATURDAY
NIGHT, SO ANOTHER DECENT RDTNL NIGHT. AIR MASS STILL SUPPOSE TO BE
ON THE DRY SIDE, SO NOT BAD SLEEPING WEATHER FOR OUTLYING AREAS.

&&

.LONG TERM /SUNDAY THROUGH THURSDAY/...
THE TIMING OF THE NEXT COLD FRONT HAS BOUNCED AROUND CONSIDERABLY IN
THE OP GFS SOLUTIONS THE LAST TWO NIGHTS. LAST NIGHT/S WAS
CONSIDERABLY SLOWER THAN THE ENSEMBLE MEAN, TNGT/S IS CONSIDERABLY
FASTER THAN THE ENSEMBLE MEAN. WHAT WE DO HAVE BETTER CONFIDENCE ABT
IS THAT BOTH SUNDAY AND MONDAY WILL BE HOT. CHANCES ARE PRETTY GOOD
FOR THE FOURTH HOT SPELL/HEAT WAVE IN A ROW THAT THE ECMWF WILL
OVERCOOK US. NOT THAT SUNDAY/MONDAY WILL FEEL COMFORTABLE NO MATTER
WAHT SOLUTION COMES TO FRUITION. DEW POINTS ON SUNDAY MIGHT STILL BE
IN QUOTES BEARABLE, BUT SHOULD INCREASE IN DISCOMFORT FOR MONDAY.
FORECASTED THICKNESSES SUPPORT THE MENTION OF MID 90S FOR SUNDAY
WHICH EVEN WITH THE MORE BEARABLE DEW POINTS WOULD SUPPORT HEAT
INDICES NEAR 100F. THIS IS ENOUGH COUPLED WITH MONDAYS EXPECTATIONS
TO ISSUE AN EXCESSIVE HEAT OUTLOOK IN THE HWO FOR URBANIZED AREAS.
NO OTHER CHGS HAVE BEEN MADE TO THE EXTENDED AND THE PREVIOUS
DISCUSSION IS BELOW.

FAIR WEATHER WILL PREVAIL ACROSS THE FORECAST AREA FOR SUNDAY AS
WEAK HIGH PRESSURE WILL BUILD JUST SOUTH OF THE REGION THROUGH
MONDAY. A FRONTAL BOUNDARY WILL APPROACH THE AREA OVERNIGHT MONDAY
AND INTO TUESDAY MORNING, THEN STALL JUST SOUTH OF THE AREA BEFORE
MOVING BACK NORTHWARD AS A WARM FRONT WEDNESDAY. FINALLY A COLD
FRONT IS EXPECTED TO CROSS OUR AREA THURSDAY INTO FRIDAY. THIS IS AT
THE END OF THE FORECAST PERIOD, SO DETERMINING WHERE AND HOW MUCH
RAIN WILL OCCUR IS DIFFICULT TO DETERMINE. WITH THIS SAID, WE HAVE A
SMALL CHANCE OF SHOWERS AND THUNDERSTORMS EACH DAY FROM TUESDAY
ONWARD. THE ONE THING THAT IS NEARLY FOR SURE IS THE WARM UP THAT
WILL OCCUR OVER THE WEEKEND INTO EARLY NEXT WEEK.

&&

.AVIATION /15Z FRIDAY THROUGH TUESDAY/...
SOME DRYING NOTED BEHIND AN INITIAL COOL FRONT WITH THE WINDS
GENERALLY FROM THE WEST. LITTLE OR NO HAZE BEING REPORTED AS THAT
HAS MIXED OUT. AN UPPER-LEVEL TROUGH WILL BE MOVING ACROSS THE
AREA THIS AFTERNOON WITH A SECONDARY COOL FRONT. ENOUGH INSTABILITY
WILL BE PRESENT THIS AFTERNOON AS COOL POCKET ALOFT MOVES NEARBY.
THE LATEST THINKING IS THAT ISOLATED TO PERHAPS SCATTERED CONVECTION
SHOULD DEVELOP, HOWEVER WITH A DOWNSLOPING FLOW THIS WILL CUT DOWN
ON THE LOW-LEVEL CONVERGENCE AND STORM ORGANIZATION. TERRAIN MAY BE
THE MAIN FOCUSING MECHANISM. IF ANY SHOWERS OR STORMS POP, LOCALLY
GUSTY WINDS COULD OCCUR AS FORECAST SOUNDINGS CONTINUE TO INDICATE
AN INVERTED-V PROFILE IN THE LOWER-LEVELS WITH DRY AIR ALOFT. FOR
NOW, WE WILL MAINTAIN NO MENTION OF PRECIPITATION IN THE TAFS AND
MONITOR RADAR AND SATELLITE TRENDS FOR A POSSIBLE INCLUSION AT SOME
TERMINALS THROUGH THE AFTERNOON. OTHERWISE, VFR CONDITIONS ARE
EXPECTED THROUGH THE AFTERNOON.

EXTENDED...VFR CONDITIONS WILL PREVAIL THIS WEEKEND AND INTO MONDAY
WITH HIGH PRESSURE BUILDING IN OVER OUR AREA. SCATTERED
THUNDERSTORMS ARE IN THE FORECAST FOR MONDAY NIGHT AND TUESDAY.

&&

.MARINE...
WESTERLY WINDS WILL BE AROUND 10 KNOTS THROUGH THE AFTERNOON WITH
SEAS GENERALLY IN THE 3 TO 4 FOOT RANGE. THE WINDS MAY TEND TO BACK
MORE TOWARD THE SOUTHWEST AGAIN THIS EVENING. BEHIND THE SECOND
FRONT, THE WINDS WILL THEN VEER BACK TO THE WEST TONIGHT.

&&

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

&&

SYNOPSIS...GIGI/GORSE
NEAR TERM...GORSE
SHORT TERM...ROBERTSON
LONG TERM...ROBERTSON/GIGI
AVIATION/MARINE...OHARA/GORSE
Hazardous weather outlook, Jul 6, 2:03 PM EDT, 7 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
203 PM EDT FRI JUL 6 2007

PAZ054-055-071815-
CARBON-MONROE-
203 PM EDT FRI JUL 6 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

DEZ002>004-MDZ008-012-015-019-020-NJZ001-007>010-012>014-016-020>027-
PAZ060>062-071815-
KENT DE-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-QUEEN ANNES-
TALBOT-CAROLINE-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-
WESTERN MONMOUTH-EASTERN MONMOUTH-SALEM-OCEAN-CUMBERLAND-ATLANTIC-
CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-BERKS-LEHIGH-NORTHAMPTON-
203 PM EDT FRI JUL 6 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL DELAWARE...SOUTHERN
DELAWARE...EASTERN MARYLAND...NORTHEAST MARYLAND...CENTRAL NEW
JERSEY...NORTHERN NEW JERSEY...SOUTHERN NEW JERSEY AND EAST CENTRAL
PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

UNSEASONABLY HOT AND INCREASINGLY MORE HUMID WEATHER IS EXPECTED
TO START ON SUNDAY AND LAST AT LEAST INTO TUESDAY. THE HOTTEST
AND MOST HUMID DAY SHOULD BE MONDAY WHEN THE HEAT INDEX GET TO
AROUND 100.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

DEZ001-NJZ015-017>019-PAZ067>071-071815-
NEW CASTLE-MERCER-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-CHESTER-
MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
203 PM EDT FRI JUL 6 2007

...EXCESSIVE HEAT WATCH IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY
AFTERNOON...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN DELAWARE...CENTRAL
NEW JERSEY...SOUTHERN NEW JERSEY AND SOUTHEAST PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   EXCESSIVE HEAT WATCH.

AN EXCESSIVE HEAT WATCH IS IN EFFECT FOR URBANIZED LOCATIONS
AROUND THE GREATER PHILADELPHIA METROPOLITAN AREA FOR SUNDAY INTO
MONDAY. HIGH TEMPERATURES ON SUNDAY AND MONDAY WILL BE IN THE
MIDDLE 90S WITH SOME AREAS EVEN REACHING THE UPPER 90S. THESE HOT
TEMPERATURES COMBINED WITH INCREASED HUMIDITY SHOULD RESULT IN A
HEAT INDEX CLOSE TO 100 ON SUNDAY AND A COUPLE DEGREES HIGHER ON
MONDAY WITH THE HUMIDITY IS A BIT HIGHER. THE EXCESSIVE HEAT COULD
CONTINUE INTO TUESDAY. ALTHOUGH HIGH TEMPERATURES ARE ONLY
FORECAST TO BE IN THE LOWER 90S TUESDAY, HUMIDITY WILL STILL BE
HIGH.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

ANZ430-431-450>455-071815-
DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE-
DELAWARE BAY WATERS SOUTH OF EAST POINT NJ TO SLAUGHTER BEACH DE-
COASTAL WATERS FROM SANDY HOOK TO MANASQUAN INLET NJ OUT 20 NM-
COASTAL WATERS FROM MANASQUAN INLET TO LITTLE EGG INLET NJ OUT 20 NM-
COASTAL WATERS FROM LITTLE EGG INLET TO GREAT EGG INLET NJ OUT 20 NM-
COASTAL WATERS FROM GREAT EGG INLET TO CAPE MAY NJ OUT 20 NM-
COASTAL WATERS FROM CAPE MAY NJ TO CAPE HENLOPEN DE OUT 20 NM-
COASTAL WATERS FROM CAPE HENLOPEN TO FENWICK ISLAND DE OUT 20 NM-
203 PM EDT FRI JUL 6 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS AND
DELAWARE BAY WATERS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 7:05 PM EDTSevere Thunderstorm WarningPHIMonroe37 min
Jul 6, 7:27 PM EDTSevere Thunderstorm WarningPHINorthampton28 min
Jul 6, 12:34 AM EDTSevere Thunderstorm WarningPHIMonmouth56 min
Jul 6, 12:55 AM EDTSpecial Marine WarningPHI65 min
Jul 6, 5:00 PM EDTSevere Thunderstorm WarningPHIWarren21 min
Jul 6, 5:08 PM EDTSevere Thunderstorm WarningPHIHunterdon52 min
Jul 6, 5:27 PM EDTSevere Thunderstorm WarningPHISomerset48 min
Jul 6, 5:41 PM EDTSevere Thunderstorm WarningPHIMercer49 min

Nearby

Excessive Heat Watches in New Jersey, 2007Excessive Heat Watches in Pennsylvania, 2007Excessive Heat Watches in Delaware, 2007Every excessive heat watch 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; radar from the NEXRAD Level II archive.