Alert archive / New Jersey / Heat Advisories in 2007
Heat Advisory 4, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this heat advisory at Jul 9, 2007, 4:05 AM EDT for Berks County, Lehigh County, Northampton County, Pennsylvania; 8 counties in New Jersey. It took effect at Jul 9, 2007, 12:00 PM EDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Jul 9, 2007, 4:05 AM EDT (08:05 UTC)
- In effect from
- Jul 9, 2007, 12:00 PM EDT
- Expired
- Jul 9, 2007, 7:00 PM EDT
- In force
- 7 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Burlington County, NJ, Hunterdon County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Somerset County, NJ, Warren County, NJ, Berks County, PA, Lehigh County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 69 km from the middle of the area, began a volume at 08:05 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, 8.1 hours before the alert went out and 174 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.
- Mixed-layer CAPE
- 109 J/kg
- Mixed-layer CIN
- -198 J/kg
- Mixed-layer LCL
- 1867 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 156 m²/s²
- 0-3 km storm-relative helicity
- 178 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS71 KPHI 090805 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 405 AM EDT MON JUL 9 2007 DEZ001-NJZ015-017>019-PAZ067>071-092300- /O.CON.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 405 AM EDT MON JUL 9 2007 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO 6 PM EDT TUESDAY... TEMPERATURES THIS AFTERNOON ARE FORECAST TO PEAK IN THE UPPER 90S. THESE TEMPERATURES, WHEN COMBINED WITH DEW POINTS IN THE MID 60S, YIELD HEAT INDICES OF AROUND 100. HIGHLY URBANIZED AREAS LOCALLY WILL BE EVEN HOTTER, AND LITTLE RELIEF IS EXPECTED TONIGHT OR TUESDAY. MAXIMUM HEAT INDICES NEAR OR ABOVE 100 DEGREES CAN CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE, ESPECIALLY IF THEY RECUR OVER A NUMBER OF DAYS. WEDNESDAY IS EXPECTED TO BE QUITE HUMID. AT THE PRESENT TIME, MAXIMUM TEMPERATURES ARE NOT EXPECTED TO EXCEED THE LOWER 90S DUE TO MORE CLOUD COVER AND THE POSSIBILITY OF THUNDERSTORMS. HOWEVER, STUDIES HAVE SHOWN THAT THE LONGER HEAT LASTS, THE MORE IT CAN BE LIFE-THREATENING. THE DANGER FROM THE HEAT COULD EXTEND INTO WEDNESDAY. RELIEF FROM THE HEAT AND HUMIDITY ULTIMATELY SHOULD ARRIVE IN THE FORM OF A COLD FRONT ON WEDNESDAY NIGHT OR THURSDAY. AN EXCESSIVE HEAT WARNING FOR THE HIGHLY URBANIZED AREAS OF THE DELAWARE VALLEY MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR, ESPECIALLY IN CITY ENVIRONS. 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. PLEASE REMEMBER YOUR PETS AND DOMESTIC ANIMALS. AT A MINIMUM, THEY NEED A SHADED AND WELL-VENTILATED AREA AND ACCESS TO PLENTY OF COOL WATER. REGARDING PETS, THE MOST HUMANE THING TO DO IS TO BRING THEM INDOORS. FINALLY, NEVER LEAVE ANY PERSON OR ANIMAL UNATTENDED IN A VEHICLE FOR ANY LENGTH OF TIME. $$ NJZ007>010-012-013-020-027-PAZ060>062-092300- /O.NEW.KPHI.HT.Y.0004.070709T1600Z-070709T2300Z/ WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-WESTERN MONMOUTH-OCEAN- SOUTHEASTERN BURLINGTON-BERKS-LEHIGH-NORTHAMPTON- INCLUDING THE CITIES OF...WASHINGTON...MORRISTOWN...FLEMINGTON... SOMERVILLE...NEW BRUNSWICK...FREEHOLD...JACKSON... WHARTON STATE FOREST...READING...ALLENTOWN...BETHLEHEM...EASTON 405 AM EDT MON JUL 9 2007 ...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A HEAT ADVISORY, WHICH IS IN EFFECT FROM NOON TO 7 PM EDT TODAY. TEMPERATURES THIS AFTERNOON ARE FORECAST TO PEAK IN THE UPPER 90S. THESE TEMPERATURES, WHEN COMBINED WITH DEW POINTS IN THE MID 60S, YIELD HEAT INDICES OF AROUND 100. MAXIMUM HEAT INDICES NEAR OR ABOVE 100 DEGREES CAN CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE, ESPECIALLY IF THE HEAT PERSISTS OVER A NUMBER OF DAYS. STUDIES HAVE SHOWN THAT THE LONGER HEAT LASTS, THE MORE IT CAN BE LIFE-THREATENING. LITTLE RELIEF IS EXPECTED ON TUESDAY, AND THE ADVISORY ULTIMATELY MAY BE REISSUED. WEDNESDAY IS EXPECTED TO BE QUITE HUMID, BUT THE HIGH TEMPERATURES SHOULD ONLY REACH AROUND 90 DUE TO MORE CLOUD COVER AND THE POSSIBILITY OF THUNDERSTORMS. SUBSTANTIAL RELIEF FROM THE HEAT AND HUMIDITY SHOULD ARRIVE IN THE FORM OF A COLD FRONT ON WEDNESDAY NIGHT OR THURSDAY. A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND 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 REMEMBER YOUR PETS AND DOMESTIC ANIMALS. AT A MINIMUM, THEY NEED A SHADED AND WELL-VENTILATED AREA AND ACCESS TO PLENTY OF COOL WATER. REGARDING PETS, THE MOST HUMANE THING TO DO IS TO BRING THEM INDOORS. FINALLY, NEVER LEAVE ANY PERSON OR ANIMAL UNATTENDED IN A VEHICLE FOR ANY LENGTH OF TIME. $$ MPD
1 follow-up statement
000 WWUS71 KPHI 091943 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 343 PM EDT MON JUL 9 2007 DEZ001-NJZ015-017>019-PAZ067>071-101000- /O.CON.KPHI.EH.W.0003.000000T0000Z-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 343 PM EDT MON JUL 9 2007 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 6 PM EDT TUESDAY... AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 6 PM EDT TUESDAY. THE COMBINATION OF TEMPERATURES AND HUMIDITIES ON MONDAY AFTERNOON RESULTED IN HEAT INDICES NEAR THE 100 DEGREE MARK IN THE HOTTEST PLACES. TEMPERATURES TONIGHT WILL DROP ONLY INTO THE LOW TO MID 70S, AND MAY NOT DROP BELOW THE UPPER 70S IN THE INTERIOR SECTIONS OF HIGHLY URBANIZED AREAS SUCH AS CENTER CITY PHILADELPHIA. HIGHS ON TUESDAY WILL SOAR INTO THE MID 90S...AND COMBINED WITH DEW POINT TEMPERATURES IN THE MID TO UPPER 60S...HEAT INDEX VALUES WILL ONCE AGAIN APPROACH THE 100 DEGREE MARK. WHILE A FEW SCATTERED SHOWERS AND THUNDERSTORMS ARE POSSIBLE LATE TUESDAY AFTERNOON AND EARLY TUESDAY EVENING...THEY WILL NOT CONTRIBUTE TO OVERALL COOLING EXCEPT IN THE LOCALIZED AREAS WHERE THEY HAPPEN TO OCCUR. THE EXCESSIVE HEAT WARNING IS THEREFORE STILL IN EFFECT UNTIL 6PM TUESDAY. THE HEAT IS EXPECTED TO CONTINUE ON WEDNESDAY...BUT CLOUDINESS AND A GREATER THREAT OF SHOWERS AND THUNDERSTORMS MAY PROVIDE JUST ENOUGH COOLING TO KEEP HIGH TEMPERATURES BELOW EXCESSIVE HEAT WARNING CRITERIA. STAY TUNED FOR LATER UPDATES. WIDESPREAD RELIEF FROM THE HEAT AND HUMIDITY IS EXPECTED TO ARRIVE LATE WEDNESDAY NIGHT AND EARLY THURSDAY AS A COLD FRONT MOVES THROUGH. COOLER TEMPERATURES ARE EXPECTED BEHIND THIS FRONT BEGINNING THURSDAY...CONTINUING INTO THE UPCOMING WEEKEND. AN EXCESSIVE HEAT WARNING FOR THE HIGHLY URBANIZED AREAS OF THE DELAWARE VALLEY MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR... ESPECIALLY IN CITY ENVIRONS. 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. PLEASE REMEMBER YOUR PETS AND DOMESTIC ANIMALS. AT A MINIMUM... THEY NEED A SHADED AND WELL-VENTILATED AREA AND ACCESS TO PLENTY OF COOL WATER. REGARDING PETS... THE MOST HUMANE THING TO DO IS TO BRING THEM INDOORS. FINALLY... NEVER LEAVE ANY PERSON OR ANIMAL UNATTENDED IN A VEHICLE FOR ANY LENGTH OF TIME. $$ NJZ007>010-012-013-020-027-PAZ060>062-092300- /O.CON.KPHI.HT.Y.0004.000000T0000Z-070709T2300Z/ WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-WESTERN MONMOUTH-OCEAN- SOUTHEASTERN BURLINGTON-BERKS-LEHIGH-NORTHAMPTON- INCLUDING THE CITIES OF...WASHINGTON...MORRISTOWN...FLEMINGTON... SOMERVILLE...NEW BRUNSWICK...FREEHOLD...JACKSON... WHARTON STATE FOREST...READING...ALLENTOWN...BETHLEHEM...EASTON 343 PM EDT MON JUL 9 2007 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING... A HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING. THE COMBINATION OF TEMPERATURES AND HUMIDITIES ON MONDAY AFTERNOON RESULTED IN HEAT INDICES NEAR THE 100 DEGREE MARK IN THE HOTTEST PLACES. TEMPERATURES TONIGHT WILL DROP INTO THE LOW 70S IN MOST LOCATIONS, AND HIGHS ON TUESDAY WILL REBOUND INTO THE LOW TO MID 90S. COMBINED WITH DEWPOINT TEMPERATURES IN THE MID 60S...THESE HIGH TEMPERATURES ARE EXPECTED TO RESULT IN HEAT INDEX VALUES NEAR 100 TUESDAY AFTERNOON. WHILE A FEW SCATTERED SHOWERS AND THUNDERSTORMS ARE POSSIBLE LATE TUESDAY AFTERNOON AND EARLY TUESDAY EVENING...THEY WILL NOT CONTRIBUTE TO OVERALL COOLING EXCEPT IN THE LOCALIZED AREAS WHERE THEY HAPPEN TO OCCUR. THE HEAT IS EXPECTED TO CONTINUE ON WEDNESDAY... BUT CLOUDINESS AND A GREATER THREAT OF SHOWERS AND THUNDERSTORMS MAY PROVIDE JUST ENOUGH COOLING TO KEEP HIGH TEMPERATURES BELOW HEAT ADVISORY CRITERIA ONCE AGAIN ON WEDNESDAY. STAY TUNED FOR LATER UPDATES. WIDESPREAD RELIEF FROM THE HEAT AND HUMIDITY IS EXPECTED TO ARRIVE LATE WEDNESDAY NIGHT AS A COLD FRONT MOVES THROUGH THE REGION. COOLER TEMPERATURES ARE EXPECTED BEHIND THIS FRONT BEGINNING THURSDAY... CONTINUING INTO THE UPCOMING WEEKEND. EVEN THOUGH A HEAT ADVISORY WILL NOT BE IN EFFECT TUESDAY AND POSSIBLY WEDNESDAY...RESIDENTS OF THE REGION SHOULD STILL EXERCISE GOOD COMMON SENSE TO AVOID ANY UNNECESSARY EXPOSURE TO THE HEAT. DRINK PLENTY OF FLUIDS... STAY IN AN AIR-CONDITIONED ROOM... STAY OUT OF THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS. PLEASE REMEMBER YOUR PETS AND DOMESTIC ANIMALS. AT A MINIMUM... THEY NEED A SHADED AND WELL-VENTILATED AREA AND ACCESS TO PLENTY OF COOL WATER. REGARDING PETS...THE MOST HUMANE THING TO DO IS TO BRING THEM INDOORS. FINALLY... NEVER LEAVE ANY PERSON OR ANIMAL UNATTENDED IN A VEHICLE FOR ANY LENGTH OF TIME. $$
Nearby
Heat Advisories in New Jersey, 2007Heat Advisories in Pennsylvania, 2007Every heat advisory 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.