Alert archive / New Jersey / Excessive Heat Warnings in 2007
Excessive Heat Warning 2, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this excessive heat warning at Jun 27, 2007, 3:42 PM EDT for Delaware County, Philadelphia County, Pennsylvania; New Castle County, Delaware; 4 counties in New Jersey. It took effect at Jun 28, 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 27, 2007, 3:42 PM EDT (19:42 UTC)
- In effect from
- Jun 28, 2007, 12:00 PM EDT
- Expired
- Jun 28, 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, 7.7 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.
- Mixed-layer CAPE
- 1994 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 955 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- -17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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
3 follow-up statements
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
000 WWUS71 KPHI 280815 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 415 AM EDT THU JUN 28 2007 DEZ001-NJZ015-017>019-PAZ067>071-282300- /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 415 AM EDT THU JUN 28 2007 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS EVENING... AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS EVENING. HIGH TEMPERATURES WILL CLIMB INTO THE LOWER 90S OVER THE HIGHLY URBANIZED AREAS IN AND NEAR PHILADELPHIA TODAY. THE HEAT...COMBINED WITH THE HIGH HUMIDITY...WILL RESULT IN HEAT INDICES APPROACHING 100 DEGREES THIS AFTERNOON. AN EXCESSIVE HEAT WARNING FOR THE HIGHLY URBANIZED AREAS MEANS THAT A PERIOD OF CONSECUTIVE DAYS OF HOT AND HUMID WEATHER 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. FOLLOWING THESE COMMON-SENSE SAFETY RULES MAY HELP YOU AVOID HEALTH PROBLEMS: WEAR LIGHT-COLORED AND LOOSE-FITTING CLOTHING... DRINK PLENTY OF FLUIDS...STAY OUT OF THE SUN...STAY IN AN AIR- CONDITIONED OR WELL VENTILATED PLACE...AND CHECK ON RELATIVES AND NEIGHBORS. ALSO, AVOID STRENUOUS OR PROLONGED WORK IN THE SUN OR IN POORLY VENTILATED AREAS. 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. NEVER LEAVE ANY PERSON OR ANIMAL UNATTENDED IN A VEHICLE FOR ANY LENGTH OF TIME. AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS WILL BRING SOME RELIEF FROM THE HEAT LATER TODAY. AS A COLD FRONT CROSSES THE REGION TONIGHT...THIS HEAT SPELL WILL COME TO AN END, WITH MORE PLEASANT TEMPERATURES AND HUMIDITIES EXPECTED FRIDAY AND ON 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. $$
000 WWUS71 KPHI 282253 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 653 PM EDT THU JUN 28 2007 DEZ001-NJZ015-017>019-PAZ067>071-290000- /O.EXP.KPHI.EH.W.0002.000000T0000Z-070628T2300Z/ NEW CASTLE-MERCER-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON- CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- INCLUDING THE CITIES OF...WILMINGTON...TRENTON...GLASSBORO... CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...WEST CHESTER... NORRISTOWN...DOYLESTOWN...MEDIA 653 PM EDT THU JUN 28 2007 ...EXCESSIVE HEAT WARNING WILL EXPIRE AT 7 PM EDT THIS EVENING... IT WILL REMAIN UNCOMFORTABLY WARM AND HUMID OVER THE HIGHLY URBANIZED AREAS OF THE DELAWARE VALLEY INTO MID-EVENING, WHEN A LINE OF SHOWERS AND THUNDERSTORMS AHEAD OF AN ADVANCING COLD FRONT WILL BRING THIS LATEST SPELL OF HEAT TO AN END. TEMPERATURES AND DEW POINTS WILL BEGIN TO DROP AFTER THE STORMS PASS. $$ MPD
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 1:19 PM EDT | Severe Thunderstorm Warning | PHI | Carbon | 56 min |
| Jun 27, 2:10 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 95 min |
| Jun 27, 4:35 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 46 min |
| Jun 27, 7:09 PM EDT | Severe Thunderstorm Warning | PHI | Carbon | 66 min |
| Jun 27, 7:58 PM EDT | Severe Thunderstorm Warning | PHI | Lehigh | 62 min |
| Jun 27, 12:45 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 45 min |
| Jun 27, 1:31 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 89 min |
| Jun 27, 2:03 PM EDT | Special Marine Warning | PHI | 87 min | |
| Jun 27, 2:43 PM EDT | Flash Flood Warning | PHI | Sussex | 3 hr |
| Jun 27, 2:58 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 77 min |
| Jun 27, 3:16 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 59 min |
| Jun 27, 7:29 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 76 min |
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.