Alert archive / New Jersey / Frost Advisories in 2014

Frost Advisory 1, NWS Philadelphia/Mount Holly

April 17, 20144 states

NWS Philadelphia/Mount Holly issued this frost advisory at Apr 17, 2014, 3:08 PM EDT for 4 states. It took effect at Apr 18, 2014, 1:00 AM EDT. It was in force for 89 min.

The area

The counties it named.

The facts

Issued
Apr 17, 2014, 3:08 PM EDT (19:08 UTC)
In effect from
Apr 18, 2014, 1:00 AM EDT
Expired
Apr 18, 2014, 2:29 AM EDT
In force
89 min
Issued by
NWS Philadelphia/Mount Holly

Counties New Castle County, DE, Cecil County, MD, Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cumberland County, NJ, Gloucester County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ, Salem County, NJ, Berks County, PA, Bucks County, PA, Chester County, PA, Montgomery County, PA

The radar

The Philadelphia radar (KDIX), 56 km from the middle of the area, began a volume at 19:05 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, 7.1 hours before the alert went out and 101 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, Phillips Aaf/Abe, MD at 12:00Z on 2014-04-17Temperature 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, Phillips Aaf/Abe, MD at 12:00Z on 2014-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 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
1410 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
155 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

061 
WWUS71 KPHI 171908
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
308 PM EDT THU APR 17 2014

NJZ013-017-018-020>022-027-172015-
/O.CAN.KPHI.FZ.A.0003.140418T0500Z-140418T1200Z/
WESTERN MONMOUTH-GLOUCESTER-CAMDEN-OCEAN-CUMBERLAND-ATLANTIC-
SOUTHEASTERN BURLINGTON-
INCLUDING THE CITIES OF...FREEHOLD...GLASSBORO...CAMDEN...
CHERRY HILL...JACKSON...MILLVILLE...HAMMONTON...
WHARTON STATE FOREST
308 PM EDT THU APR 17 2014

...FREEZE WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE
FREEZE WATCH.

SOME PATCHY FROST IS POSSIBLE IN MORE SHELTERED LOCATIONS TONIGHT. 
MINIMUM TEMPERATURES ARE EXPECTED TO BE MAINLY IN THE MID TO UPPER 30S.

$$

NJZ012-015-019-PAZ060-101>103-106-181200-
/O.UPG.KPHI.FZ.A.0003.140418T0500Z-140418T1200Z/
/O.NEW.KPHI.FR.Y.0001.140418T0500Z-140418T1200Z/
MIDDLESEX-MERCER-NORTHWESTERN BURLINGTON-BERKS-WESTERN CHESTER-
EASTERN CHESTER-WESTERN MONTGOMERY-LOWER BUCKS-
INCLUDING THE CITIES OF...NEW BRUNSWICK...TRENTON...MOORESTOWN...
MOUNT HOLLY...READING...HONEY BROOK...OXFORD...WEST CHESTER...
KENNET SQUARE...COLLEGEVILLE...POTTSTOWN...MORRISVILLE...
DOYLESTOWN
308 PM EDT THU APR 17 2014

...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM EDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 1 AM TO 8 AM EDT FRIDAY. THE
FREEZE WATCH IS NO LONGER IN EFFECT.

* LOCATIONS...PORTIONS OF SOUTHEASTERN PENNSYLVANIA AND CENTRAL
  NEW JERSEY.

* LOW TEMPERATURES...IN THE LOWER TO MID 30S.

* TIMING...MOST LIKELY TO OCCUR EARLY FRIDAY MORNING.
 
* IMPACTS...POTENTIAL DAMAGE TO SENSITIVE OR EARLY-BLOOMING
  VEGETATION AS TEMPERATURES DROP CLOSE TO FREEZING WITH 
  FROST OCCURRING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...
 
A FROST ADVISORY MEANS THAT FROST IS LIKELY. SENSITIVE OUTDOOR PLANTS
MAY BE KILLED IF LEFT UNCOVERED.

&&

$$

MDZ008-PAZ104-181200-
/O.NEW.KPHI.FR.Y.0001.140418T0500Z-140418T1200Z/
CECIL-EASTERN MONTGOMERY-
INCLUDING THE CITIES OF...ELKTON...NORRISTOWN...LANSDALE
308 PM EDT THU APR 17 2014

...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM EDT FRIDAY...

* LOCATIONS...PORTIONS OF SOUTHEASTERN PENNSYLVANIA AND CECIL
  COUNTY MARYLAND.

* LOW TEMPERATURES...IN THE LOWER TO MID 30S.

* TIMING...MOST LIKELY TO OCCUR EARLY FRIDAY MORNING.
 
* IMPACTS...POTENTIAL DAMAGE TO SENSITIVE OR EARLY-BLOOMING
  VEGETATION AS TEMPERATURES DROP CLOSE TO FREEZING WITH 
  FROST OCCURRING.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS LIKELY. SENSITIVE OUTDOOR PLANTS
MAY BE KILLED IF LEFT UNCOVERED.

&&

$$
3 follow-up statements
785 
WWUS71 KPHI 180118
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
918 PM EDT THU APR 17 2014

DEZ001-NJZ013-016>018-020>022-027-181200-
/O.EXA.KPHI.FR.Y.0001.140418T0500Z-140418T1200Z/
NEW CASTLE-WESTERN MONMOUTH-SALEM-GLOUCESTER-CAMDEN-OCEAN-
CUMBERLAND-ATLANTIC-SOUTHEASTERN BURLINGTON-
INCLUDING THE CITIES OF...WILMINGTON...FREEHOLD...PENNSVILLE...
GLASSBORO...CAMDEN...CHERRY HILL...JACKSON...MILLVILLE...
HAMMONTON...WHARTON STATE FOREST
918 PM EDT THU APR 17 2014

...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM EDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 1 AM TO 8 AM EDT FRIDAY.

* LOCATIONS...PORTIONS OF SOUTHEASTERN PENNSYLVANIA, CENTRAL AND
  SOUTHERN NEW JERSEY.

* LOW TEMPERATURES...IN THE LOWER TO MID 30S.

* TIMING...MOST LIKELY TO OCCUR EARLY FRIDAY MORNING.

* IMPACTS...POTENTIAL DAMAGE TO SENSITIVE OR EARLY-BLOOMING 
  VEGETATION AS TEMPERATURES DROP CLOSE TO FREEZING WITH FROST 
  OCCURRING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS LIKELY. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$

MDZ008-NJZ012-015-019-PAZ060-101>104-106-181200-
/O.CON.KPHI.FR.Y.0001.140418T0500Z-140418T1200Z/
CECIL-MIDDLESEX-MERCER-NORTHWESTERN BURLINGTON-BERKS-
WESTERN CHESTER-EASTERN CHESTER-WESTERN MONTGOMERY-
EASTERN MONTGOMERY-LOWER BUCKS-
INCLUDING THE CITIES OF...ELKTON...NEW BRUNSWICK...TRENTON...
MOORESTOWN...MOUNT HOLLY...READING...HONEY BROOK...OXFORD...
WEST CHESTER...KENNET SQUARE...COLLEGEVILLE...POTTSTOWN...
NORRISTOWN...LANSDALE...MORRISVILLE...DOYLESTOWN
918 PM EDT THU APR 17 2014

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM EDT
FRIDAY...

* LOCATIONS...PORTIONS OF SOUTHEASTERN PENNSYLVANIA AND CENTRAL 
  NEW JERSEY.

* LOW TEMPERATURES...IN THE LOWER TO MID 30S.

* TIMING...MOST LIKELY TO OCCUR EARLY FRIDAY MORNING.

* IMPACTS...POTENTIAL DAMAGE TO SENSITIVE OR EARLY-BLOOMING 
  VEGETATION AS TEMPERATURES DROP CLOSE TO FREEZING WITH FROST 
  OCCURRING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS LIKELY. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$
535 
WWUS71 KPHI 180418
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1218 AM EDT FRI APR 18 2014

DEZ001-MDZ008-NJZ012-013-015>022-027-PAZ104-106-180530-
/O.CAN.KPHI.FR.Y.0001.140418T0500Z-140418T1200Z/
NEW CASTLE-CECIL-MIDDLESEX-WESTERN MONMOUTH-MERCER-SALEM-
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-
ATLANTIC-SOUTHEASTERN BURLINGTON-EASTERN MONTGOMERY-LOWER BUCKS-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...NEW BRUNSWICK...
FREEHOLD...TRENTON...PENNSVILLE...GLASSBORO...CAMDEN...
CHERRY HILL...MOORESTOWN...MOUNT HOLLY...JACKSON...MILLVILLE...
HAMMONTON...WHARTON STATE FOREST...NORRISTOWN...LANSDALE...
MORRISVILLE...DOYLESTOWN
1218 AM EDT FRI APR 18 2014

...FROST ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE
FROST ADVISORY.

THE FROST ADVISORY FOR NORTHEAST MARYLAND...NORTHERN DELAWARE...
CENTRAL AND SOUTHERN NEW JERSEY HAS BEEN CANCELLED. LOW CLOUDS AND
A LIGHT EAST WIND HAS FORCED TEMPERATURES TO RISE FROM COOLER
EARLIER READINGS OF THIS PAST THURSDAY EVENING. 

$$

PAZ060-101>103-181200-
/O.CON.KPHI.FR.Y.0001.140418T0500Z-140418T1200Z/
BERKS-WESTERN CHESTER-EASTERN CHESTER-WESTERN MONTGOMERY-
INCLUDING THE CITIES OF...READING...HONEY BROOK...OXFORD...
WEST CHESTER...KENNET SQUARE...COLLEGEVILLE...POTTSTOWN
1218 AM EDT FRI APR 18 2014

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING...

* LOCATIONS...PORTIONS OF SOUTHEASTERN PENNSYLVANIA.

* LOW TEMPERATURES...IN THE LOWER TO MID 30S.

* CONFIDENCE...FROST MAY NOT OCCUR IN SOME AREAS AS LOW CLOUDS
  DEVELOP NORTHWESTWARD. THE COLDEST TEMPERATURES ARE PROBABLY
  OCCURRING NOW...AROUND MIDNIGHT. TEMPERATURES MAY RISE SEVERAL
  DEGREES TOWARD DAWN.

* IMPACTS...POTENTIAL DAMAGE TO SENSITIVE OR EARLY-BLOOMING 
  VEGETATION AS TEMPERATURES DROP CLOSE TO FREEZING WITH FROST 
  OCCURRING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS LIKELY. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$
142 
WWUS71 KPHI 180629
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
229 AM EDT FRI APR 18 2014


PAZ060-101>103-180730-
/O.CAN.KPHI.FR.Y.0001.000000T0000Z-140418T1200Z/
BERKS-WESTERN CHESTER-EASTERN CHESTER-WESTERN MONTGOMERY-
INCLUDING THE CITIES OF...READING...HONEY BROOK...OXFORD...
WEST CHESTER...KENNET SQUARE...COLLEGEVILLE...POTTSTOWN
229 AM EDT FRI APR 18 2014

...FROST ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE
FROST ADVISORY FOR SOUTHEAST PENNSYLVANIA.

LOW CLOUDS HAVE DEVELOPED LIMITING THE POTENTIAL FOR ANY FURTHER
WIDESPREAD FROST RISK EARLY TODAY. TEMPERATURES SHOULD REMAIN IN
THE MID 30S THE REMAINDER OF THIS EARLY FRIDAY MORNING.



$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 17, 3:35 AM EDTFreeze WatchPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Mercer and 3 more12 hr

Nearby

Frost Advisories in New Jersey, 2014Frost Advisories in Pennsylvania, 2014Frost Advisories in Maryland, 2014Every frost advisory in 2014

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.