Alert archive / Pennsylvania / Heat Advisories in 2016

Heat Advisory 1, NWS Philadelphia/Mount Holly

July 5, 20164 counties in New Jersey; 5 counties in Pennsylvania; New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this heat advisory at Jul 5, 2016, 2:55 PM EDT for 4 counties in New Jersey; 5 counties in Pennsylvania; New Castle County, Delaware. It took effect at Jul 6, 2016, 11:00 AM EDT. It was in force for .

The area

The counties it named.

The facts

Issued
Jul 5, 2016, 2:55 PM EDT (18:55 UTC)
In effect from
Jul 6, 2016, 11:00 AM EDT
Expired
Jul 6, 2016, 3:40 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, 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 18:53 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, 6.9 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 2016-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 207 joules per kilogram.LCLEL10008507005003002001001 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 2016-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.19395878Sfc1 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
207 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
468 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

344 
WWUS71 KPHI 051855
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
255 PM EDT TUE JUL 5 2016


DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-060800-
/O.NEW.KPHI.HT.Y.0001.160706T1500Z-160706T2200Z/
/O.NEW.KPHI.EH.A.0001.160707T1500Z-160708T2200Z/
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
255 PM EDT TUE JUL 5 2016

...HEAT ADVISORY IN EFFECT FROM 11 AM TO 6 PM EDT WEDNESDAY...
...EXCESSIVE HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH
FRIDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT FROM 11 AM TO 6 PM EDT WEDNESDAY.
AN EXCESSIVE HEAT WATCH HAS ALSO BEEN ISSUED. THIS EXCESSIVE HEAT
WATCH IS IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY
AFTERNOON.

* HEAT INDEX VALUES...HIGH TEMPERATURES IN THE LOW TO MID 90'S
  WEDNESDAY THEN IN THE MID 90'S THURSDAY AND FRIDAY. AFTERNOON
  HEAT INDICIES AROUND 100 DEGREES EACH DAY.

* TIMING... DANGEROUS HEAT IS EXPECTED PRIMARILY IN THE LATE
  MORNING THROUGH THE LATE AFTERNOON HOURS. 

* IMPACTS...HOT AND HUMID CONDITIONS MAY LEAD TO STRAIN ON THOSE
  OUTDOORS IN THE HEAT ALONG WITH SENSITIVE GROUPS SUCH AS THE
  ELDERLY, CHILDREN AND PETS. 

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.

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. 

&&

$$

GAINES
1 follow-up statement
422 
WWUS71 KPHI 060740
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
340 AM EDT WED JUL 6 2016

DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-062100-
/O.UPG.KPHI.HT.Y.0001.160706T1500Z-160706T2200Z/
/O.NEW.KPHI.EH.W.0001.160706T1500Z-160708T2200Z/
/O.UPG.KPHI.EH.A.0001.160707T1500Z-160708T2200Z/
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
340 AM EDT WED JUL 6 2016

...EXCESSIVE HEAT WARNING IN EFFECT FROM 11 AM THIS MORNING TO 6
PM EDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED AN
EXCESSIVE HEAT WARNING. IT IS IN EFFECT FROM 1100 AM THIS MORNING
UNTIL 600 PM FRIDAY. THE HEAT ADVISORY AND THE EXCESSIVE HEAT
WATCH ARE NO LONGER IN EFFECT.

* TEMPERATURES...HIGHS IN THE LOWER AND MIDDLE 90S TODAY...AND IN
  THE MIDDLE 90S ON THURSDAY AND FRIDAY. LOWS MAINLY IN THE 70S
  TONIGHT AND THURSDAY NIGHT.

* HEAT INDEX VALUES...AROUND 100 DURING THE AFTERNOON HOURS
  TODAY...THURSDAY AND FRIDAY.

* IMPACTS...THE HOT AND HUMID CONDITIONS MAY LEAD TO HEAT RELATED
  HEALTH ISSUES...ESPECIALLY AMONG THE ELDERLY AND THOSE ALREADY
  IN POOR HEALTH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO THE EARLY MORNING OR
LATE EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING AND
DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN A SHADED OR AIR CONDITIONED ENVIRONMENT. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL 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 CREATE A HAZARDOUS SITUATION
IN WHICH HEAT RELATED ILLNESSES ARE LIKELY. DRINK PLENTY OF
FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN AND
CHECK ON ELDERLY RELATIVES AND NEIGHBORS.

YOUNG CHILDREN AND PETS SHOULD NEVER BE LEFT UNATTENDED IN A
VEHICLE UNDER ANY CIRCUMSTANCE. THIS IS ESPECIALLY TRUE DURING HOT
WEATHER WHEN A CAR'S INTERIOR CAN REACH LETHAL TEMPERATURES IN A
MATTER OF MINUTES.

KEEP PETS IN A COOL ENVIRONMENT AND PROVIDE THEM WITH PLENTY OF
WATER.

&&

$$

IOVINO

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 5, 12:51 AM EDTSpecial Weather StatementPHICumberland39 min
Jul 5, 3:23 AM EDTSpecial Weather StatementPHICumberland37 min
Jul 5, 3:26 AM EDTSpecial Weather StatementPHICumberland49 min
Jul 5, 3:41 AM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more6 hr
Jul 5, 2:55 PM EDTExcessive Heat WatchPHIBurlington, Camden, Gloucester, Mercer13 hr
Jul 5, 2:24 AM EDTSpecial Weather StatementPHIBerks, Bucks, Montgomery51 min
Jul 5, 2:36 AM EDTSpecial Weather StatementPHIKent54 min

Nearby

Heat Advisories in Pennsylvania, 2016Heat Advisories in New Jersey, 2016Heat Advisories in Delaware, 2016Every heat advisory 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.