Alert archive / Pennsylvania / Heat Advisories in 2015
Heat Advisory 2, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this heat advisory at Jun 22, 2015, 3:41 PM EDT for 4 states. It took effect at Jun 23, 2015, 11:00 AM EDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Jun 22, 2015, 3:41 PM EDT (19:41 UTC)
- In effect from
- Jun 23, 2015, 11:00 AM EDT
- Expired
- Jun 23, 2015, 6:00 PM EDT
- In force
- 7 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties New Castle County, DE, Cecil County, MD, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Mercer County, NJ, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 72 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 89 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
- 1441 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -31 m²/s²
- 0-3 km storm-relative helicity
- -10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
733 WWUS71 KPHI 221941 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 341 PM EDT MON JUN 22 2015 DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-231000- /O.NEW.KPHI.HT.Y.0002.150623T1500Z-150623T2200Z/ NEW CASTLE-MERCER-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON- DELAWARE-PHILADELPHIA-EASTERN CHESTER-EASTERN MONTGOMERY- LOWER BUCKS- INCLUDING THE CITIES OF...WILMINGTON...TRENTON...GLASSBORO... CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...MEDIA... PHILADELPHIA...WEST CHESTER...KENNETT SQUARE...NORRISTOWN... LANSDALE...MORRISVILLE...DOYLESTOWN 341 PM EDT MON JUN 22 2015 ...HEAT ADVISORY IN EFFECT FROM 11 AM TO 6 PM EDT TUESDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A HEAT ADVISORY...WHICH IS IN EFFECT FROM 11 AM TO 6 PM EDT TUESDAY. * LOCATIONS AFFECTED...THROUGH THE INTERSTATE 95 CORRIDOR AND SURROUNDING AREAS...INCLUDING THE PHILADELPHIA METROPOLITAN AREA. * HEAT INDEX VALUES...IN THE UPPER 90S DUE TO TEMPERATURES AROUND IN THE LOWER 90S...AND DEW POINTS IN THE UPPER 60S TO AROUND 70. * TIMING...HIGHEST HEAT INDEX VALUES ARE EXPECTED DURING THE EARLY TO MID AFTERNOON HOURS BEFORE SHOWERS AND THUNDERSTORMS MOVE INTO THE AREA ASSOCIATED WITH A COLD FRONT LATE IN THE AFTERNOON AND INTO THE EVENING HOURS. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES FOR 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. A HEAT ADVISORY MEANS THAT A PERIOD OF EXCESSIVE HEAT 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 SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS. IN ADDITION... NEVER LEAVE CHILDREN OR PETS IN PARKED VEHICLES AS RAPIDLY RISING TEMPERATURES MAY LEAD TO HEAT STROKE OR DEATH. && $$
2 follow-up statements
624 WWUS71 KPHI 230734 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 334 AM EDT TUE JUN 23 2015 MDZ008-232000- /O.EXA.KPHI.HT.Y.0002.150623T1500Z-150623T2200Z/ CECIL- INCLUDING THE CITY OF...ELKTON 334 AM EDT TUE JUN 23 2015 ...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A HEAT ADVISORY...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EDT THIS EVENING. * LOCATIONS AFFECTED...THROUGH THE INTERSTATE 95 CORRIDOR AND SURROUNDING AREAS...INCLUDING THE PHILADELPHIA METROPOLITAN AREA. * HEAT INDEX VALUES...IN THE UPPER 90S DUE TO TEMPERATURES IN THE MID 90S...AND DEWPOINTS IN THE LOWER 70S. * TIMING...HIGHEST HEAT INDEX VALUES ARE EXPECTED DURING THE EARLY TO MID AFTERNOON HOURS BEFORE SHOWERS AND THUNDERSTORMS MOVE INTO THE AREA ASSOCIATED WITH A COLD FRONT LATE IN THE AFTERNOON AND INTO THE EVENING HOURS. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES FOR 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. A HEAT ADVISORY MEANS THAT A PERIOD OF EXCESSIVE HEAT 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 SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS. IN ADDITION... NEVER LEAVE CHILDREN OR PETS IN PARKED VEHICLES AS RAPIDLY RISING TEMPERATURES MAY LEAD TO HEAT STROKE OR DEATH. && $$ DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-232000- /O.CON.KPHI.HT.Y.0002.150623T1500Z-150623T2200Z/ NEW CASTLE-MERCER-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON- DELAWARE-PHILADELPHIA-EASTERN CHESTER-EASTERN MONTGOMERY- LOWER BUCKS- INCLUDING THE CITIES OF...WILMINGTON...TRENTON...GLASSBORO... CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...MEDIA... PHILADELPHIA...WEST CHESTER...KENNETT SQUARE...NORRISTOWN... LANSDALE...MORRISVILLE...DOYLESTOWN 334 AM EDT TUE JUN 23 2015 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EDT THIS EVENING... * LOCATIONS AFFECTED...THROUGH THE INTERSTATE 95 CORRIDOR AND SURROUNDING AREAS...INCLUDING THE PHILADELPHIA METROPOLITAN AREA. * HEAT INDEX VALUES...IN THE UPPER 90S DUE TO TEMPERATURES IN THE MID 90S...AND DEWPOINTS IN THE LOWER 70S. * TIMING...HIGHEST HEAT INDEX VALUES ARE EXPECTED DURING THE EARLY TO MID AFTERNOON HOURS BEFORE SHOWERS AND THUNDERSTORMS MOVE INTO THE AREA ASSOCIATED WITH A COLD FRONT LATE IN THE AFTERNOON AND INTO THE EVENING HOURS. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES FOR 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. A HEAT ADVISORY MEANS THAT A PERIOD OF EXCESSIVE HEAT 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 SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS. IN ADDITION... NEVER LEAVE CHILDREN OR PETS IN PARKED VEHICLES AS RAPIDLY RISING TEMPERATURES MAY LEAD TO HEAT STROKE OR DEATH. && $$
554 WWUS71 KPHI 231940 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 340 PM EDT TUE JUN 23 2015 DEZ001-MDZ008-NJZ015-017>019-PAZ070-071-102-104-106-232200- /O.CON.KPHI.HT.Y.0002.000000T0000Z-150623T2200Z/ NEW CASTLE-CECIL-MERCER-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON- DELAWARE-PHILADELPHIA-EASTERN CHESTER-EASTERN MONTGOMERY- LOWER BUCKS- INCLUDING THE CITIES OF...WILMINGTON...ELKTON...TRENTON... GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY... MEDIA...PHILADELPHIA...WEST CHESTER...KENNETT SQUARE... NORRISTOWN...LANSDALE...MORRISVILLE...DOYLESTOWN 340 PM EDT TUE JUN 23 2015 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING... * LOCATIONS AFFECTED...THROUGH THE INTERSTATE 95 CORRIDOR AND SURROUNDING AREAS...INCLUDING THE PHILADELPHIA METROPOLITAN AREA. * HEAT INDEX VALUES...UP TO 100 DUE TO TEMPERATURES IN THE LOWER 90S...AND DEWPOINTS AROUND 70. * TIMING...INTO THE EVENING HOURS. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES FOR 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. A HEAT ADVISORY MEANS THAT A PERIOD OF EXCESSIVE HEAT 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 SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS. IN ADDITION... NEVER LEAVE CHILDREN OR PETS IN PARKED VEHICLES AS RAPIDLY RISING TEMPERATURES MAY LEAD TO HEAT STROKE OR DEATH. && $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 9:58 PM EDT | Special Weather Statement | PHI | Delaware | 32 min |
| Jun 21, 10:28 PM EDT | Special Weather Statement | PHI | Gloucester | 32 min |
| Jun 21, 10:56 PM EDT | Special Weather Statement | PHI | Camden, Gloucester | 34 min |
| Jun 21, 11:30 PM EDT | Special Weather Statement | PHI | Atlantic | 30 min |
| Jun 21, 11:52 PM EDT | Special Weather Statement | PHI | Atlantic | 23 min |
| Jun 22, 3:44 PM EDT | Small Craft Advisory | PHI | 33 hr |
Nearby
Heat Advisories in Pennsylvania, 2015Heat Advisories in New Jersey, 2015Heat Advisories in Maryland, 2015Every heat advisory in 2015
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.