Alert archive / New Jersey / Frost Advisories in 2012

Frost Advisory 1, NWS Philadelphia/Mount Holly

April 2, 201212 counties in New Jersey; New Castle County, Delaware; Cecil County, Kent County, Maryland

NWS Philadelphia/Mount Holly issued this frost advisory at Apr 2, 2012, 3:08 AM EDT for 12 counties in New Jersey; New Castle County, Delaware; Cecil County, Kent County, Maryland. It took effect at Apr 3, 2012, 12:00 AM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Apr 2, 2012, 3:08 AM EDT (07:08 UTC)
In effect from
Apr 3, 2012, 12:00 AM EDT
Expired
Apr 3, 2012, 8:00 AM EDT
In force
8 hr
Issued by
NWS Philadelphia/Mount Holly

Counties New Castle County, DE, Cecil County, MD, Kent County, MD, Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cumberland County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ, Salem County, NJ, Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 49 km from the middle of the area, began a volume at 07:07 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, 7.1 hours before the alert went out and 210 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 2012-04-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 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 2012-04-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 211 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
1 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
524 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
211 m²/s²
0-3 km storm-relative helicity
256 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.

310 
WWUS71 KPHI 020708
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
308 AM EDT MON APR 2 2012

NJZ007-008-PAZ060>062-022000-
/O.NEW.KPHI.FZ.W.0004.120403T0400Z-120403T1200Z/
WARREN-MORRIS-BERKS-LEHIGH-NORTHAMPTON-
INCLUDING THE CITIES OF...WASHINGTON...MORRISTOWN...READING...
ALLENTOWN...BETHLEHEM...EASTON
308 AM EDT MON APR 2 2012

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT
TUESDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT
TUESDAY.

* TEMPERATURES...LOWS AROUND 30 DEGREES. 

* TIMING...TONIGHT.

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-MDZ008-012-NJZ009-010-012-013-015>022-027-PAZ067>069-
022000-
/O.NEW.KPHI.FR.Y.0001.120403T0400Z-120403T1200Z/
NEW CASTLE-CECIL-KENT MD-HUNTERDON-SOMERSET-MIDDLESEX-
WESTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-ATLANTIC-
SOUTHEASTERN BURLINGTON-CHESTER-MONTGOMERY-BUCKS-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...CHESTERTOWN...
FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...FREEHOLD...TRENTON...
PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN...
MOUNT HOLLY...JACKSON...MILLVILLE...HAMMONTON...
WHARTON STATE FOREST...WEST CHESTER...NORRISTOWN...DOYLESTOWN
308 AM EDT MON APR 2 2012

...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT
TUESDAY...

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

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

* TIMING...TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
2 follow-up statements
375 
WWUS71 KPHI 021958
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
358 PM EDT MON APR 2 2012

NJZ009-010-031200-
/O.UPG.KPHI.FR.Y.0001.120403T0400Z-120403T1200Z/
/O.EXA.KPHI.FZ.W.0004.120403T0400Z-120403T1200Z/
HUNTERDON-SOMERSET-
INCLUDING THE CITIES OF...FLEMINGTON...SOMERVILLE
358 PM EDT MON APR 2 2012

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT
TUESDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT
TUESDAY. THE FROST ADVISORY IS NO LONGER IN EFFECT.

* TEMPERATURES...LOWS AROUND 30.

* TIMING...TONIGHT AND TUESDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

NJZ007-008-PAZ060>062-031200-
/O.CON.KPHI.FZ.W.0004.120403T0400Z-120403T1200Z/
WARREN-MORRIS-BERKS-LEHIGH-NORTHAMPTON-
INCLUDING THE CITIES OF...WASHINGTON...MORRISTOWN...READING...
ALLENTOWN...BETHLEHEM...EASTON
358 PM EDT MON APR 2 2012

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM
EDT TUESDAY...

* TEMPERATURES...LOWS AROUND 30.

* TIMING...TONIGHT AND TUESDAY MORNING.

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-MDZ008-012-NJZ012-013-015>022-027-PAZ067>069-031200-
/O.CON.KPHI.FR.Y.0001.120403T0400Z-120403T1200Z/
NEW CASTLE-CECIL-KENT MD-MIDDLESEX-WESTERN MONMOUTH-MERCER-SALEM-
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-
ATLANTIC-SOUTHEASTERN BURLINGTON-CHESTER-MONTGOMERY-BUCKS-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...CHESTERTOWN...
NEW BRUNSWICK...FREEHOLD...TRENTON...PENNSVILLE...GLASSBORO...
CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...JACKSON...
MILLVILLE...HAMMONTON...WHARTON STATE FOREST...WEST CHESTER...
NORRISTOWN...DOYLESTOWN
358 PM EDT MON APR 2 2012

...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM
EDT TUESDAY...

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

* TIMING...TONIGHT AND TUESDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
951 
WWUS71 KPHI 031206
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
806 AM EDT TUE APR 3 2012


NJZ007>010-PAZ060>062-031315-
/O.EXP.KPHI.FZ.W.0004.000000T0000Z-120403T1200Z/
WARREN-MORRIS-HUNTERDON-SOMERSET-BERKS-LEHIGH-NORTHAMPTON-
INCLUDING THE CITIES OF...WASHINGTON...MORRISTOWN...FLEMINGTON...
SOMERVILLE...READING...ALLENTOWN...BETHLEHEM...EASTON
806 AM EDT TUE APR 3 2012

...FREEZE WARNING HAS EXPIRED...

WITH TEMPERATURES RISING INTO THE 30S, THE FREEZE WARNING HAS
EXPIRED.

$$

DEZ001-MDZ008-012-NJZ012-013-015>022-027-PAZ067>069-031315-
/O.EXP.KPHI.FR.Y.0001.000000T0000Z-120403T1200Z/
NEW CASTLE-CECIL-KENT MD-MIDDLESEX-WESTERN MONMOUTH-MERCER-SALEM-
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-
ATLANTIC-SOUTHEASTERN BURLINGTON-CHESTER-MONTGOMERY-BUCKS-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...CHESTERTOWN...
NEW BRUNSWICK...FREEHOLD...TRENTON...PENNSVILLE...GLASSBORO...
CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...JACKSON...
MILLVILLE...HAMMONTON...WHARTON STATE FOREST...WEST CHESTER...
NORRISTOWN...DOYLESTOWN
806 AM EDT TUE APR 3 2012

...FROST ADVISORY HAS EXPIRED...

TEMPERATURES ARE CLIMBING INTO THE UPPER 30S AND LOW 40S. THE
FROST ADVISORY HAS EXPIRED.

$$

KRUZDLO

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 2, 3:08 AM EDTFreeze WarningPHIHunterdon, Morris, Somerset, Warren29 hr
Apr 2, 3:12 PM EDTSmall Craft AdvisoryPHI15 hr
Apr 1, 8:43 PM EDTCoastal Flood StatementPHICaroline, Queen Anne's, Talbot6 hr

Nearby

Frost Advisories in New Jersey, 2012Frost Advisories in Maryland, 2012Frost Advisories in Delaware, 2012Every frost advisory 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.