Alert archive / Pennsylvania / Excessive Heat Watches in 2016

Excessive Heat Watch 2, NWS Philadelphia/Mount Holly

July 12, 20165 counties in Pennsylvania; 4 counties in New Jersey; New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this excessive heat watch at Jul 12, 2016, 2:45 PM EDT for 5 counties in Pennsylvania; 4 counties in New Jersey; New Castle County, Delaware. It took effect at Jul 14, 2016, 12:00 PM EDT. It was in force for .

The area

The counties it named.

The facts

Issued
Jul 12, 2016, 2:45 PM EDT (18:45 UTC)
In effect from
Jul 14, 2016, 12:00 PM EDT
Expired
Jul 13, 2016, 2:44 PM 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, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 66 km from the middle of the area, began a volume at 18:47 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, 6.8 hours before the alert went out and 220 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.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2016-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2016-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1146 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
28 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

889 
WWUS71 KPHI 121845
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
245 PM EDT TUE JUL 12 2016

DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-131000-
/O.NEW.KPHI.EH.A.0002.160714T1600Z-160716T0000Z/
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
245 PM EDT TUE JUL 12 2016

...EXCESSIVE HEAT WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
FRIDAY EVENING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED AN
EXCESSIVE HEAT WATCH. IT IS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH FRIDAY EVENING.

* TEMPERATURES...MAXIMUM READINGS IN THE LOWER AND MIDDLE 90S ON
  THURSDAY AND FRIDAY. LOWS ON THURSDAY NIGHT IN THE MIDDLE AND
  UPPER 70S WITH SOME HIGH URBANIZED LOCATIONS POSSIBLY NOT
  FALLING BELOW 80 DEGREES.

* HEAT INDEX VALUES...MAXIMUM HEAT INDEX VALUES OF 100 TO 104 ON
  THURSDAY AFTERNOON AND NEAR 100 ON FRIDAY AFTERNOON.

* IMPACTS...THE EXCESSIVE HEAT WILL CREATE HAZARDOUS CONDITIONS.
  THE POTENTIAL FOR HEAT RELATED HEALTH ISSUES WILL BE HIGH,
  ESPECIALLY FOR THE ELDERLY AND FOR THOSE IN POOR HEALTH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WATCH MEANS THAT A PROLONGED PERIOD OF HOT
TEMPERATURES AND HIGH HUMIDITY IS EXPECTED. THE COMBINATION WILL
CREATE A DANGEROUS SITUATION IN WHICH HEAT RELATED ILLNESSES ARE
POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED
ENVIRONMENT IF YOU CAN...STAY OUT OF THE SUN AND CHECK ON ELDERLY
RELATIVES AND NEIGHBORS. MAKE SURE THAT PETS ARE PROVIDED WITH A
COOL PLACE TO STAY ALONG WITH PLENTY OF WATER.

&&

$$

IOVINO
2 follow-up statements
287 
WWUS71 KPHI 130726
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
326 AM EDT WED JUL 13 2016

DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-132100-
/O.CON.KPHI.EH.A.0002.160714T1600Z-160716T0000Z/
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
326 AM EDT WED JUL 13 2016

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH FRIDAY EVENING...

* TEMPERATURES...MAXIMUM READINGS IN THE LOWER AND MIDDLE 90S ON 
  THURSDAY AND FRIDAY. LOWS ON THURSDAY NIGHT IN THE MIDDLE AND 
  UPPER 70S WITH SOME HIGH URBANIZED LOCATIONS POSSIBLY NOT 
  FALLING BELOW 80 DEGREES.

* HEAT INDEX VALUES...MAXIMUM HEAT INDEX VALUES OF 100 TO 104 ON 
  THURSDAY AFTERNOON AND NEAR 100 ON FRIDAY AFTERNOON.

* IMPACTS...THE EXCESSIVE HEAT WILL CREATE HAZARDOUS CONDITIONS. 
  THE POTENTIAL FOR HEAT RELATED HEALTH ISSUES WILL BE HIGH... 
  ESPECIALLY FOR THE ELDERLY AND FOR THOSE IN POOR HEALTH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WATCH MEANS THAT A PROLONGED PERIOD OF HOT
TEMPERATURES AND HIGH HUMIDITY IS EXPECTED. THE COMBINATION WILL
CREATE A DANGEROUS SITUATION IN WHICH HEAT RELATED ILLNESSES ARE
POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED
ENVIRONMENT IF YOU CAN...STAY OUT OF THE SUN AND CHECK ON ELDERLY
RELATIVES AND NEIGHBORS. MAKE SURE THAT PETS ARE PROVIDED WITH A
COOL PLACE TO STAY ALONG WITH PLENTY OF WATER.

&&

$$
MIKETTA
729 
WWUS71 KPHI 131844
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
244 PM EDT WED JUL 13 2016


DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-140745-
/O.UPG.KPHI.EH.A.0002.160714T1600Z-160716T0000Z/
/O.NEW.KPHI.EH.W.0002.160714T1600Z-160716T0000Z/
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
244 PM EDT WED JUL 13 2016

...EXCESSIVE HEAT WARNING IN EFFECT FROM NOON THURSDAY TO 8 PM
EDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED AN
EXCESSIVE HEAT WARNING...WHICH IS IN EFFECT FROM NOON THURSDAY TO
8 PM EDT FRIDAY. THE EXCESSIVE HEAT WATCH IS NO LONGER IN EFFECT.

* TEMPERATURES...MAXIMUM READINGS IN THE LOWER AND MIDDLE 90S ON
  THURSDAY AND FRIDAY. LOWS ON THURSDAY NIGHT IN THE MIDDLE AND
  UPPER 70S WITH SOME HIGH URBANIZED LOCATIONS POSSIBLY NOT
  FALLING BELOW 80 DEGREES.

* HEAT INDEX VALUES...MAXIMUM HEAT INDEX VALUES ON THURSDAY WILL
  BE 100 TO 104. ON FRIDAY...MAXIMUM HEAT INDEX VALUES WILL BE
  NEAR 100 DEGREES.

* IMPACTS...THE EXCESSIVE HEAT WILL CREATE HAZARDOUS CONDITIONS. 
  THE POTENTIAL FOR HEAT RELATED HEALTH ISSUES WILL BE HIGH... 
  ESPECIALLY FOR THE ELDERLY AND FOR THOSE IN POOR HEALTH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES 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.

   AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. 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.

   YOUNG CHILDREN AND PETS SHOULD NEVER BE LEFT UNATTENDED IN
VEHICLES UNDER ANY CIRCUMSTANCES.  THIS IS ESPECIALLY TRUE DURING
WARM OR HOT WEATHER WHEN CAR INTERIORS CAN REACH LETHAL
TEMPERATURES IN A MATTER OF MINUTES.

&&

$$

NJZ007>010-012-013-020-027-PAZ060>062-101-103-105-140745-
/O.NEW.KPHI.HT.Y.0002.160714T1600Z-160715T0000Z/
WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-WESTERN MONMOUTH-OCEAN-
SOUTHEASTERN BURLINGTON-BERKS-LEHIGH-NORTHAMPTON-WESTERN CHESTER-
WESTERN MONTGOMERY-UPPER BUCKS-
INCLUDING THE CITIES OF...WASHINGTON...MORRISTOWN...FLEMINGTON...
SOMERVILLE...NEW BRUNSWICK...FREEHOLD...JACKSON...
WHARTON STATE FOREST...READING...ALLENTOWN...BETHLEHEM...EASTON...
HONEY BROOK...OXFORD...COLLEGEVILLE...POTTSTOWN...CHALFONT...
PERKASIE
244 PM EDT WED JUL 13 2016

...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM EDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT FROM NOON TO 8 PM EDT THURSDAY.

* TEMPERATURES...HIGH TEMPERATURES WILL BE IN THE LOW 90S.

* HEAT INDEX VALUES....MAXIMUM HEAT INDEX VALUES ON THURSDAY WILL
  BE NEAR 100 DEGREES.

* IMPACTS...THE EXCESSIVE HEAT WILL CREATE HAZARDOUS CONDITIONS. 
  THE POTENTIAL FOR HEAT RELATED HEALTH ISSUES WILL BE HIGH... 
  ESPECIALLY FOR THE ELDERLY AND FOR THOSE IN POOR HEALTH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES 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.

   TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE.
WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES 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.

&&

$$

DEZ002-003-MDZ008-012-015-019-020-NJZ016-021>023-140745-
/O.NEW.KPHI.HT.Y.0002.160714T1600Z-160715T0000Z/
KENT-INLAND SUSSEX-CECIL-KENT MD-QUEEN ANNES-TALBOT-CAROLINE-
SALEM-CUMBERLAND-ATLANTIC-CAPE MAY-
INCLUDING THE CITIES OF...DOVER...GEORGETOWN...ELKTON...
CHESTERTOWN...CENTREVILLE...EASTON...DENTON...PENNSVILLE...
MILLVILLE...HAMMONTON...CAPE MAY COURT HOUSE
244 PM EDT WED JUL 13 2016

...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM EDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT FROM NOON TO 8 PM EDT THURSDAY.

* TEMPERATURES...HIGH TEMPERATURES WILL BE IN THE LOW TO MID 90S.

* HEAT INDEX VALUES....MAXIMUM HEAT INDEX VALUES ON THURSDAY WILL
  RANGE FROM 102 TO 106 DEGREES.

* IMPACTS...THE EXCESSIVE HEAT WILL CREATE HAZARDOUS CONDITIONS. 
  THE POTENTIAL FOR HEAT RELATED HEALTH ISSUES WILL BE HIGH... 
  ESPECIALLY FOR THE ELDERLY AND FOR THOSE IN POOR HEALTH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES 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.

   TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE.
WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES 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.

&&

$$

JOHNSON

Nearby

Excessive Heat Watches in Pennsylvania, 2016Excessive Heat Watches in New Jersey, 2016Excessive Heat Watches in Delaware, 2016Every excessive heat watch in 2016

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.