Alert archive / New Jersey / Excessive Heat Watches in 2012
Excessive Heat Watch 3, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this excessive heat watch at Jun 26, 2012, 3:42 PM EDT for Delaware County, Philadelphia County, Pennsylvania; 4 counties in New Jersey; New Castle County, Delaware. It took effect at Jun 29, 2012, 12:00 PM EDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Jun 26, 2012, 3:42 PM EDT (19:42 UTC)
- In effect from
- Jun 29, 2012, 12:00 PM EDT
- Expired
- Jun 28, 2012, 3:59 AM 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 19:46 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
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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1423 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 84 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
061 WWUS71 KPHI 261942 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 342 PM EDT TUE JUN 26 2012 ...A PERIOD OF EXCESSIVE HEAT LOOKS TO ARRIVE LATER THIS WEEK... .HIGH PRESSURE, SLIDING EASTWARD FROM THE PLAINS TOWARD THE OHIO VALLEY LATE THIS WEEK AND OVER THE WEEKEND, WILL PUSH A HOT AND HUMID AIRMASS INTO THE MID ATLANTIC REGION. THIS HOT AND INCREASINGLY HUMID AIRMASS IS ANTICIPATED TO MOVE INTO OUR AREA FRIDAY AND LASTING THROUGH THE WEEKEND, WITH HEAT INDICES TOPPING OUT TO AROUND 100 DEGREES. MEANWHILE, A FRONTAL BOUNDARY MAY STALL IN OUR VICINITY OVER THE WEEKEND WHICH COULD RESULT IN SOME ISOLATED BUT BRIEF COOLING THUNDERSTORMS. BASED ON ENOUGH CONFIDENCE, AN EXCESSIVE HEAT WATCH HAS BEEN ISSUED. DEZ001-NJZ015-017>019-PAZ067>071-270830- /O.NEW.KPHI.EH.A.0003.120629T1600Z-120702T0000Z/ 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 342 PM EDT TUE JUN 26 2012 ...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH SUNDAY EVENING... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED AN EXCESSIVE HEAT WATCH, WHICH IS IN EFFECT FROM FRIDAY AFTERNOON THROUGH SUNDAY EVENING. * HEAT INDEX VALUES...AROUND 100 DEGREES DURING EACH AFTERNOON OF FRIDAY, SATURDAY AND SUNDAY. THERE IS A CHANCE THAT THE DEW POINTS MAY LOWER SOME ESPECIALLY FRIDAY, ALLOWING THE HEAT INDEX VALUES TO BE REDUCED. * TEMPERATURES...HIGHS EACH AFTERNOON OF FRIDAY, SATURDAY AND SUNDAY IN THE MID TO UPPER 90S. * IMPACTS...THE WORST WOULD BE FELT BY THOSE WHO LIVE AND/OR WORK IN THE URBAN AREAS. THOSE WHO ARE AT A GREATER RISK INCLUDE THE ELDERLY, THE INFIRM, CHILDREN AND ANYONE WITHOUT AIR CONDITIONING. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ GORSE
3 follow-up statements
125 WWUS71 KPHI 270729 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 329 AM EDT WED JUN 27 2012 ...A PERIOD OF EXCESSIVE HEAT LOOKS TO ARRIVE LATER THIS WEEK... .HIGH PRESSURE... SLIDING EASTWARD FROM THE PLAINS TOWARD THE OHIO VALLEY LATE THIS WEEK AND OVER THE WEEKEND... WILL PUSH A HOT AND HUMID AIRMASS INTO THE MID ATLANTIC REGION. THIS HOT AND INCREASINGLY HUMID AIRMASS IS ANTICIPATED TO MOVE INTO OUR AREA FRIDAY AND LASTING THROUGH THE WEEKEND... WITH HEAT INDICES TOPPING OUT TO AROUND 100 DEGREES. MEANWHILE... A FRONTAL BOUNDARY MAY STALL IN OUR VICINITY OVER THE WEEKEND WHICH COULD RESULT IN SOME ISOLATED BUT BRIEF COOLING THUNDERSTORMS. BASED ON ENOUGH CONFIDENCE... AN EXCESSIVE HEAT WATCH HAS BEEN ISSUED. DEZ001-NJZ015-017>019-PAZ067>071-272000- /O.CON.KPHI.EH.A.0003.120629T1600Z-120702T0000Z/ 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 329 AM EDT WED JUN 27 2012 ...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON THROUGH SUNDAY EVENING... * HEAT INDEX VALUES...AROUND 100 DEGREES DURING EACH AFTERNOON OF FRIDAY... SATURDAY AND SUNDAY. THERE IS A CHANCE THAT THE DEW POINTS MAY LOWER SOME ESPECIALLY FRIDAY... ALLOWING THE HEAT INDEX VALUES TO BE REDUCED. * TEMPERATURES...HIGHS EACH AFTERNOON OF FRIDAY... SATURDAY AND SUNDAY IN THE MID TO UPPER 90S. * IMPACTS...THE WORST WOULD BE FELT BY THOSE WHO LIVE AND/OR WORK IN THE URBAN AREAS. THOSE WHO ARE AT A GREATER RISK INCLUDE THE ELDERLY... THE INFIRM... CHILDREN AND ANYONE WITHOUT AIR CONDITIONING. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$
260 WWUS71 KPHI 271934 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 334 PM EDT WED JUN 27 2012 ...A PERIOD OF EXCESSIVE HEAT FRIDAY THROUGH SUNDAY... .HIGH PRESSURE, SLIDING EASTWARD FROM THE PLAINS TOWARD THE OHIO VALLEY THURSDAY AND FRIDAY, WILL PUSH A HOT AND HUMID AIRMASS INTO THE MID ATLANTIC REGION. IT WILL START TO TURN HOT THURSDAY, HOWEVER THE HUMIDITY IS EXPECTED TO REMAIN ON THE LOWER SIDE. THE HEAT ALONG WITH AN INCREASINGLY HUMID AIRMASS IS ANTICIPATED TO MOVE INTO OUR AREA FRIDAY AND LAST THROUGH THE WEEKEND. MEANWHILE, A WEAK FRONTAL BOUNDARY WILL ARRIVE FRIDAY INTO SATURDAY AND STALL NEAR THE NORTHERN MID ATLANTIC THROUGH SUNDAY, AND THERE IS A CHANCE FOR SOME COOLING BUT BRIEF THUNDERSTORMS. BASED ON THE FORECAST HEAT INDICES TO REACH 100 DEGREES, THE EXCESSIVE HEAT WATCH CONTINUES. THE HEAT WAVE LOOKS TO CONTINUE EARLY NEXT WEEK, HOWEVER THE EXCESSIVE HEAT MAY BE PUSHED TO OUR SOUTH FOR A TIME. DEZ001-NJZ015-017>019-PAZ067>071-280830- /O.CON.KPHI.EH.A.0003.120629T1600Z-120702T0000Z/ 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 334 PM EDT WED JUN 27 2012 ...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON THROUGH SUNDAY EVENING... * HEAT INDEX VALUES...AROUND 100 DEGREES EACH AFTERNOON OF FRIDAY, SATURDAY AND SUNDAY. THERE IS THE POTENTIAL HOWEVER THAT THE DEW POINTS LOWER SOME DURING EACH AFTERNOON, WHICH WILL REDUCE THE HEAT INDEX VALUES AT LEAST SOME. * TEMPERATURES...HIGHS EACH AFTERNOON OF FRIDAY, SATURDAY AND SUNDAY IN THE MID TO UPPER 90S. LOWS GENERALLY AROUND 70 DEGREES, HOWEVER PROBABLY ONLY DROPPING TO NEAR 80 DEGREES IN CENTER CITY PHILADELPHIA. * IMPACTS...THE WORST WOULD BE FELT BY THOSE WHO LIVE AND/OR WORK IN THE URBAN AREAS. THOSE WHO ARE AT A GREATER RISK INCLUDE THE ELDERLY, THE INFIRM, CHILDREN AND ANYONE WITHOUT AIR CONDITIONING. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ GORSE
592 WWUS71 KPHI 280759 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 359 AM EDT THU JUN 28 2012 ...A PERIOD OF EXCESSIVE HEAT FRIDAY THROUGH SUNDAY... .HIGH PRESSURE... SLIDING EASTWARD FROM THE PLAINS TOWARD THE OHIO VALLEY TODAY AND FRIDAY... WILL PUSH A HOT AND HUMID AIRMASS INTO THE MID ATLANTIC REGION. IT WILL START TO TURN HOT TODAY... HOWEVER THE HUMIDITY IS EXPECTED TO REMAIN ON THE LOWER SIDE. THE HEAT ALONG WITH AN INCREASINGLY HUMID AIRMASS IS ANTICIPATED TO MOVE INTO OUR AREA FRIDAY AND LAST THROUGH THE WEEKEND. THE HEAT WAVE LOOKS TO CONTINUE EARLY NEXT WEEK... HOWEVER THE EXCESSIVE HEAT MAY BE PUSHED TO OUR SOUTH FOR A TIME. DEZ001-NJZ015-017>019-PAZ067>071-282000- /O.UPG.KPHI.EH.A.0003.120629T1600Z-120702T0000Z/ /O.NEW.KPHI.EH.W.0003.120629T1600Z-120702T0000Z/ 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 359 AM EDT THU JUN 28 2012 ...EXCESSIVE HEAT WARNING IN EFFECT FROM NOON FRIDAY TO 8 PM EDT SUNDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED AN EXCESSIVE HEAT WARNING...WHICH IS IN EFFECT FROM NOON FRIDAY TO 8 PM EDT SUNDAY. THE EXCESSIVE HEAT WATCH IS NO LONGER IN EFFECT. * HEAT INDEX VALUES...AROUND 100 DEGREES EACH AFTERNOON OF FRIDAY... SATURDAY AND SUNDAY. THERE IS THE POTENTIAL HOWEVER THAT THE DEW POINTS LOWER SOME DURING EACH AFTERNOON... WHICH WILL REDUCE THE HEAT INDEX VALUES AT LEAST SOME. * TEMPERATURES...HIGHS EACH AFTERNOON OF FRIDAY... SATURDAY AND SUNDAY IN THE MID TO UPPER 90S. LOWS GENERALLY AROUND 70 DEGREES... HOWEVER PROBABLY ONLY DROPPING TO NEAR 80 DEGREES IN CENTER CITY PHILADELPHIA. * IMPACTS...THE WORST WOULD BE FELT BY THOSE WHO LIVE AND/OR WORK IN THE URBAN AREAS. THOSE WHO ARE AT A GREATER RISK INCLUDE THE ELDERLY... THE INFIRM... CHILDREN AND ANYONE WITHOUT AIR CONDITIONING. 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. && $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 8:21 PM EDT | Special Weather Statement | PHI | Atlantic | 54 min |
Nearby
Excessive Heat Watches in New Jersey, 2012Excessive Heat Watches in Pennsylvania, 2012Excessive Heat Watches in Delaware, 2012Every excessive heat watch 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.