Alert archive / New Jersey / Freeze Watches in 2012

Freeze Watch 8, NWS Philadelphia/Mount Holly

October 12, 20124 counties in New Jersey

NWS Philadelphia/Mount Holly issued this freeze watch at Oct 12, 2012, 7:18 AM EDT for 4 counties in New Jersey. It took effect at Oct 13, 2012, 3:00 AM EDT. It was in force for .

The area

The counties it named.

The facts

Issued
Oct 12, 2012, 7:18 AM EDT (11:18 UTC)
In effect from
Oct 13, 2012, 3:00 AM EDT
Expired
Oct 12, 2012, 2:40 PM EDT
In force
Issued by
NWS Philadelphia/Mount Holly

Counties Atlantic County, NJ, Burlington County, NJ, Cumberland County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 41 km from the middle of the area, began a volume at 11:18 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

Wallops Is Stn, VA (KWAL), launched 00:00Z, 11.3 hours before the alert went out and 200 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, Wallops Is Stn, VA at 00:00Z on 2012-10-12Temperature 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, Wallops Is Stn, VA at 00:00Z on 2012-10-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
1860 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
67 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.

254 
WWUS71 KPHI 121118
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
718 AM EDT FRI OCT 12 2012

NJZ001-007>010-PAZ054-055-060>062-067>069-122030-
/O.UPG.KPHI.FZ.A.0007.121013T0600Z-121013T1300Z/
/O.NEW.KPHI.FZ.W.0012.121013T0600Z-121013T1300Z/
SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-CARBON-MONROE-BERKS-
LEHIGH-NORTHAMPTON-CHESTER-MONTGOMERY-BUCKS-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN...
FLEMINGTON...SOMERVILLE...JIM THORPE...STROUDSBURG...READING...
ALLENTOWN...BETHLEHEM...EASTON...WEST CHESTER...NORRISTOWN...
DOYLESTOWN
718 AM EDT FRI OCT 12 2012

...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY. THE
FREEZE WATCH IS NO LONGER IN EFFECT.

* TEMPERATURES...RANGING FROM THE MID 20S IN THE POCONOS AND NORTHWESTERN
  NEW JERSEY, TO THE UPPER 20S AND LOWER 30S ELSEWHERE.

* IMPACTS...SENSITIVE PLANTS WILL LIKELY BE DAMAGED OR KILLED IF
  NOT PROTECTED OR BROUGHT INDOORS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

NJZ020>022-027-122030-
/O.NEW.KPHI.FZ.A.0008.121013T0700Z-121013T1300Z/
OCEAN-CUMBERLAND-ATLANTIC-SOUTHEASTERN BURLINGTON-
INCLUDING THE CITIES OF...JACKSON...MILLVILLE...HAMMONTON...
WHARTON STATE FOREST
718 AM EDT FRI OCT 12 2012

...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY
MORNING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FREEZE
WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY
MORNING.

* TEMPERATURES...AROUND 30.

* IMPACTS...SENSITIVE PLANTS WILL BE DAMAGED OR KILLED IF NOT
  PROTECTED OR BROUGHT INDOORS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE.
THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION.

&&

$$

GORSE
1 follow-up statement
497 
WWUS71 KPHI 121840
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
240 PM EDT FRI OCT 12 2012

NJZ020>022-027-131300-
/O.UPG.KPHI.FZ.A.0008.121013T0700Z-121013T1300Z/
/O.EXA.KPHI.FZ.W.0012.121013T0600Z-121013T1300Z/
OCEAN-CUMBERLAND-ATLANTIC-SOUTHEASTERN BURLINGTON-
INCLUDING THE CITIES OF...JACKSON...MILLVILLE...HAMMONTON...
WHARTON STATE FOREST
240 PM EDT FRI OCT 12 2012

...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY. THE
FREEZE WATCH IS NO LONGER IN EFFECT.

* TEMPERATURES...AROUND 30.

* TIMING...LATE TONIGHT INTO EARLY SATURDAY MORNING.

* IMPACTS...SENSITIVE PLANTS WILL BE DAMAGED OR KILLED IF NOT 
  PROTECTED OR BROUGHT INDOORS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

MDZ008-131300-
/O.EXA.KPHI.FZ.W.0012.121013T0600Z-121013T1300Z/
CECIL-
INCLUDING THE CITY OF...ELKTON
240 PM EDT FRI OCT 12 2012

...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY.

* TEMPERATURES...AROUND 30.

* TIMING...LATE TONIGHT INTO EARLY SATURDAY MORNING.

* IMPACTS...SENSITIVE PLANTS WILL LIKELY BE DAMAGED OR KILLED IF 
  NOT PROTECTED OR BROUGHT INDOORS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

NJZ001-007>010-PAZ054-055-060>062-067>069-131300-
/O.CON.KPHI.FZ.W.0012.121013T0600Z-121013T1300Z/
SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-CARBON-MONROE-BERKS-
LEHIGH-NORTHAMPTON-CHESTER-MONTGOMERY-BUCKS-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN...
FLEMINGTON...SOMERVILLE...JIM THORPE...STROUDSBURG...READING...
ALLENTOWN...BETHLEHEM...EASTON...WEST CHESTER...NORRISTOWN...
DOYLESTOWN
240 PM EDT FRI OCT 12 2012

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT
SATURDAY...

* TEMPERATURES...UPPER 20S TO AROUND 30.

* TIMING...LATE TONIGHT INTO EARLY SATURDAY MORNING.

* IMPACTS...SENSITIVE PLANTS WILL LIKELY BE DAMAGED OR KILLED IF 
  NOT PROTECTED OR BROUGHT INDOORS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

DEZ001>003-MDZ012-015-019-020-NJZ012-013-015>019-023-PAZ070-
131200-
/O.NEW.KPHI.FR.Y.0010.121013T0700Z-121013T1200Z/
NEW CASTLE-KENT-INLAND SUSSEX-KENT MD-QUEEN ANNES-TALBOT-CAROLINE-
MIDDLESEX-WESTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-CAPE MAY-DELAWARE-
INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN...
CHESTERTOWN...CENTREVILLE...EASTON...DENTON...NEW BRUNSWICK...
FREEHOLD...TRENTON...PENNSVILLE...GLASSBORO...CAMDEN...
CHERRY HILL...MOORESTOWN...MOUNT HOLLY...CAPE MAY COURT HOUSE...
MEDIA
240 PM EDT FRI OCT 12 2012

...FROST ADVISORY IN EFFECT FROM 3 AM TO 8 AM EDT SATURDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 3 AM TO 8 AM EDT SATURDAY.

* TEMPERATURES...LOW TO MID 30S.

* TIMING...LATE TONIGHT INTO EARLY SATURDAY MORNING.

* IMPACTS...UNPROTECTED VEGETATION SENSITIVE TO FREEZING
  TEMPERATURES WILL BE AT RISK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 12, 7:18 AM EDTFreeze WarningPHIAtlantic, Burlington, Cumberland, Hunterdon, Morris, Ocean and 3 more25 hr
Oct 12, 2:40 PM EDTFrost AdvisoryPHIBurlington, Camden, Cape May, Gloucester, Mercer, Middlesex and 2 more17 hr

Nearby

Freeze Watches in New Jersey, 2012Every freeze watch 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.