Alert archive / New Jersey / Excessive Heat Warnings in 2012
Excessive Heat Warning 1, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this excessive heat warning at May 27, 2012, 3:01 PM EDT for Delaware County, Philadelphia County, Pennsylvania; 4 counties in New Jersey; New Castle County, Delaware. It took effect at May 28, 2012, 12:00 PM EDT. It was in force for 31 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
- May 27, 2012, 3:01 PM EDT (19:01 UTC)
- In effect from
- May 28, 2012, 12:00 PM EDT
- Expired
- May 29, 2012, 7:00 PM EDT
- In force
- 31 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 radar
The Philadelphia radar (KDIX), 59 km from the middle of the area, began a volume at 19:01 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, 7.0 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1927 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- -27 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
813 WWUS71 KPHI 271901 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 301 PM EDT SUN MAY 27 2012 DEZ001-NJZ015-017>019-PAZ067>071-281000- /O.UPG.KPHI.EH.A.0001.120528T1600Z-120529T2300Z/ /O.NEW.KPHI.EH.W.0001.120528T1600Z-120529T2300Z/ 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 301 PM EDT SUN MAY 27 2012 ...EXCESSIVE HEAT WARNING IN EFFECT FROM NOON MONDAY TO 7 PM EDT TUESDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED AN EXCESSIVE HEAT WARNING...WHICH IS IN EFFECT FROM NOON MONDAY TO 7 PM EDT TUESDAY. THE EXCESSIVE HEAT WATCH IS NO LONGER IN EFFECT. * HEAT INDEX VALUES...IN THE MID 90S DUE TO TEMPERATURES AROUND 90 DEGREES...AND DEW POINTS IN THE UPPER 60S. * TIMING...MONDAY AFTERNOON THROUGH TUESDAY EVENING. * IMPACTS...THE FIRST HEAT SPELL OF THE SEASON IS EXPECTED TO PEAK MONDAY AND TUESDAY AFTERNOONS WITH HOT AND HUMID CONDITIONS AFFECTING PHILADELPHIA AND THE SURROUNDING METRO AREA. TEMPERATURES ON MONDAY NIGHT ARE NOT EXPECTED TO DROP MUCH BELOW THE 70 DEGREE MARK IN URBAN AREAS BEFORE WARMING UP AGAIN ON TUESDAY. 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. && $$
5 follow-up statements
113 WWUS71 KPHI 280747 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 347 AM EDT MON MAY 28 2012 DEZ001-NJZ015-017>019-PAZ067>071-282100- /O.CON.KPHI.EH.W.0001.120528T1600Z-120529T2300Z/ 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 347 AM EDT MON MAY 28 2012 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO 7 PM EDT TUESDAY... * HEAT INDEX VALUES...IN THE LOWER 90S DUE TO TEMPERATURES AROUND 90 DEGREES...AND DEWPOINTS IN THE UPPER 60S. * TIMING...THIS AFTERNOON THROUGH TUESDAY EVENING. * IMPACTS...THE FIRST HEAT SPELL OF THE SEASON IS EXPECTED TO PEAK TODAY AND TUESDAY AFTERNOON WITH HOT AND HUMID CONDITIONS AFFECTING PHILADELPHIA AND THE SURROUNDING METRO AREA. TEMPERATURES ON TONIGHT ARE NOT EXPECTED TO DROP MUCH BELOW THE 70 DEGREE MARK IN URBAN AREAS BEFORE WARMING UP AGAIN ON TUESDAY. 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. && $$
046 WWUS71 KPHI 281923 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 323 PM EDT MON MAY 28 2012 DEZ001-NJZ015-017>019-PAZ067>071-290900- /O.CON.KPHI.EH.W.0001.000000T0000Z-120529T2300Z/ 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 323 PM EDT MON MAY 28 2012 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM EDT TUESDAY... * HEAT INDEX VALUES...PEAKING IN THE MID 90S ON TUESDAY AFTERNOON. * TIMING...THROUGH TUESDAY EVENING. * IMPACTS...THE FIRST HEAT SPELL OF THE SEASON WILL PEAK TUESDAY AFTERNOON WITH ANOTHER HOT AND HUMID DAY FOR PHILADELPHIA AND THE SURROUNDING METRO AREA. LOW TEMPERATURES TONIGHT IN URBAN AREAS ARE EXPECTED TO ONLY DROP INTO THE LOWER MID 70S WITH HIGH TEMPERATURES ON TUESDAY AGAIN AROUND 90 DEGREES. 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. PLEASE MAKE SURE YOUR PETS HAVE PLENTY OF WATER AND ARE KEPT AS COOL AS POSSIBLE. && $$
905 WWUS71 KPHI 290731 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 331 AM EDT TUE MAY 29 2012 DEZ001-NJZ015-017>019-PAZ067>071-292300- /O.CON.KPHI.EH.W.0001.000000T0000Z-120529T2300Z/ NEW CASTLE-MERCER-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON- CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- INCLUDING THE CITIES OF...WILMINGTON...TRENTON...GLASSBORO... CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...WEST CHESTER... NORRISTOWN...DOYLESTOWN...MEDIA...PHILADELPHIA 331 AM EDT TUE MAY 29 2012 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING... * HEAT INDEX VALUES...IN THE MID 90S THIS AFTERNOON. * TIMING...THROUGH THIS EVENING. * IMPACTS...THE FIRST HOT SPELL OF THE SEASON WILL PEAK THIS AFTERNOON WITH ANOTHER HOT AND HUMID DAY FOR PHILADELPHIA AND THE SURROUNDING METRO AREA. HIGHS ARE EXPECTED TO TOP OUT AROUND 90 DEGREES THIS AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL CREATE A DANGEROUS SITUATION IN WHICH HEAT ILLNESSES ARE LIKELY. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS. TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITY TO EARLY MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER. TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN EMERGENCY - CALL 9 1 1. PLEASE MAKE SURE YOUR PETS HAVE PLENTY OF WATER AND ARE KEPT AS COOL AS POSSIBLE. && $$
255 WWUS71 KPHI 291455 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1055 AM EDT TUE MAY 29 2012 DEZ001-NJZ015-017>019-PAZ067>071-292300- /O.CON.KPHI.EH.W.0001.000000T0000Z-120529T2300Z/ 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 1055 AM EDT TUE MAY 29 2012 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING... * HEAT INDEX VALUES...IN THE UPPER 90S DUE TO TEMPERATURES IN THE LOWER 90S...AND DEWPOINTS IN THE UPPER 60S TO AROUND 70. THE HEAT INDICES TODAY WILL PROBABLY RUN 2 TO 4 DEGREES WARMER THAN YESTERDAYS MAXIMUMS WHICH WILL PROBABLY OCCUR AGAIN TODAY AROUND 4 PM OR 5 PM. * TIMING...THROUGH THIS EVENING. THE HEAT WILL CONTINUE INTO THIS EVENING UNTIL SHOWERS AND THUNDERSTORMS ARRIVE. * IMPACTS...THE FIRST HOT SPELL OF THE SEASON WILL PEAK THIS AFTERNOON WITH ANOTHER HOT AND HUMID DAY FOR PHILADELPHIA AND THE SURROUNDING METRO AREA. 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. PLEASE MAKE SURE YOUR PETS HAVE PLENTY OF WATER AND ARE KEPT AS COOL AS POSSIBLE. && $$ DRAG
128 WWUS71 KPHI 292322 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 722 PM EDT TUE MAY 29 2012 DEZ001-NJZ015-017>019-PAZ067>071-300030- /O.EXP.KPHI.EH.W.0001.000000T0000Z-120529T2300Z/ NEW CASTLE-MERCER-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON- CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA- INCLUDING THE CITIES OF...WILMINGTON...TRENTON...GLASSBORO... CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...WEST CHESTER... NORRISTOWN...DOYLESTOWN...MEDIA...PHILADELPHIA 722 PM EDT TUE MAY 29 2012 ...EXCESSIVE HEAT WARNING HAS EXPIRED... $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 2:19 AM EDT | Special Weather Statement | PHI | Berks, Carbon, Lehigh, Montgomery, Northampton | 56 min |
| May 27, 2:54 AM EDT | Special Weather Statement | PHI | Bucks | 66 min |
| May 27, 3:10 AM EDT | Areal Flood Advisory | PHI | Berks, Bucks, Lehigh, Montgomery | 3 hr |
| May 27, 3:35 AM EDT | Special Weather Statement | PHI | Berks | 55 min |
| May 27, 3:46 AM EDT | Special Weather Statement | PHI | Bucks, Montgomery | 59 min |
| May 27, 4:08 AM EDT | Flash Flood Warning | PHI | Bucks, Montgomery | 4 hr |
| May 27, 4:35 AM EDT | Special Weather Statement | PHI | Berks | 55 min |
| May 27, 4:46 AM EDT | Special Weather Statement | PHI | Philadelphia | 59 min |
| May 27, 4:58 AM EDT | Areal Flood Advisory | PHI | Bucks, Montgomery, Philadelphia | 83 min |
| May 27, 5:08 AM EDT | Areal Flood Advisory | PHI | Berks | 89 min |
| May 27, 5:18 AM EDT | Special Weather Statement | PHI | Berks | 57 min |
| May 27, 5:47 AM EDT | Special Weather Statement | PHI | Berks | 58 min |
| May 27, 5:57 AM EDT | Flash Flood Warning | PHI | Bucks, Montgomery, Philadelphia | 2 hr |
| May 27, 8:48 AM EDT | Special Weather Statement | PHI | Montgomery | 42 min |
| May 27, 9:26 AM EDT | Special Weather Statement | PHI | Bucks, Lehigh | 49 min |
| May 27, 10:07 AM EDT | Areal Flood Warning | PHI | Berks, Bucks, Lehigh, Montgomery, Philadelphia | 3 hr |
| May 27, 4:56 PM EDT | Special Weather Statement | PHI | Berks | 49 min |
| May 27, 5:51 PM EDT | Areal Flood Warning | PHI | Montgomery | 95 min |
| May 27, 7:36 PM EDT | Special Weather Statement | PHI | Monroe | 39 min |
| May 27, 7:45 PM EDT | Special Weather Statement | PHI | Berks | 45 min |
| May 27, 5:12 AM EDT | Special Weather Statement | PHI | Ocean | 63 min |
| May 27, 5:36 AM EDT | Special Weather Statement | PHI | Ocean | 54 min |
| May 27, 6:23 AM EDT | Special Weather Statement | PHI | Burlington, Ocean | 67 min |
| May 27, 6:35 AM EDT | Areal Flood Advisory | PHI | Burlington, Ocean | 91 min |
| May 27, 10:49 AM EDT | Special Weather Statement | PHI | Burlington | 41 min |
Nearby
Excessive Heat Warnings in New Jersey, 2012Excessive Heat Warnings in Pennsylvania, 2012Excessive Heat Warnings in Delaware, 2012Every excessive heat warning 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.