Alert archive / New Jersey / Freeze Warnings in 2012

Freeze Warning 12, NWS Philadelphia/Mount Holly

October 12, 2012Cecil County, Maryland; 9 counties in New Jersey; 5 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this freeze warning at Oct 12, 2012, 7:18 AM EDT for Cecil County, Maryland; 9 counties in New Jersey; 5 counties in Pennsylvania. It took effect at Oct 13, 2012, 2:00 AM EDT. It was in force for 6 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
Oct 12, 2012, 7:18 AM EDT (11:18 UTC)
In effect from
Oct 13, 2012, 2:00 AM EDT
Expired
Oct 13, 2012, 7:55 AM EDT
In force
6 hr
Issued by
NWS Philadelphia/Mount Holly

Counties Cecil County, MD, Atlantic County, NJ, Burlington County, NJ, Cumberland County, NJ, Hunterdon County, NJ, Morris County, NJ, Ocean County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Berks County, PA, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 76 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

Brookhaven, NY (KOKX), launched 00:00Z, 11.3 hours before the alert went out and 195 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 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, Brookhaven, NY at 00:00Z on 2012-10-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1470 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
79 m²/s²
0-3 km storm-relative helicity
117 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
2 follow-up statements
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.

&&

$$
619 
WWUS71 KPHI 131155
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
755 AM EDT SAT OCT 13 2012

MDZ008-NJZ001-007>010-020>022-027-PAZ054-055-060>062-067>069-
131300-
/O.CAN.KPHI.FZ.W.0012.000000T0000Z-121013T1300Z/
CECIL-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-OCEAN-CUMBERLAND-
ATLANTIC-SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-
NORTHAMPTON-CHESTER-MONTGOMERY-BUCKS-
INCLUDING THE CITIES OF...ELKTON...NEWTON...WASHINGTON...
MORRISTOWN...FLEMINGTON...SOMERVILLE...JACKSON...MILLVILLE...
HAMMONTON...WHARTON STATE FOREST...JIM THORPE...STROUDSBURG...
READING...ALLENTOWN...BETHLEHEM...EASTON...WEST CHESTER...
NORRISTOWN...DOYLESTOWN
755 AM EDT SAT OCT 13 2012

...FREEZE WARNING IS CANCELLED...

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

TEMPERATURES WILL CLIMB THROUGH THE MORNING FROM THE CURRENT COLD
READINGS. BASED ON THE TEMPERATURES SO FAR, IT APPEARS THAT THE
GROWING SEASON HAS ENDED ACROSS A GOOD PART OF THE AREA.

THE COUNTIES DECLARED TO HAVE THEIR GROWING SEASON DONE, WILL BE
INCLUDED IN A PUBLIC INFORMATION STATEMENT THAT WILL BE ISSUED A
LITTLE LATER THIS MORNING.

$$

DEZ001>003-MDZ012-015-019-020-NJZ012-013-015>019-023-PAZ070-
131300-
/O.CAN.KPHI.FR.Y.0010.000000T0000Z-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
755 AM EDT SAT OCT 13 2012

...FROST ADVISORY IS CANCELLED...

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

TEMPERATURES WILL CLIMB THROUGH THE MORNING, THEREFORE THE FROST
ADVISORY HAS ENDED.

$$

GORSE

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 12, 2:40 PM EDTFrost AdvisoryPHICaroline, Kent, Queen Anne's, Talbot17 hr
Oct 12, 7:18 AM EDTFreeze WatchPHIAtlantic, Burlington, Cumberland, Ocean7 hr

Nearby

Freeze Warnings in New Jersey, 2012Freeze Warnings in Pennsylvania, 2012Freeze Warnings in Maryland, 2012Every freeze 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.