Alert archive / New Jersey / Freeze Watches in 2016

Freeze Watch 7, NWS Philadelphia/Mount Holly

October 24, 20164 states

NWS Philadelphia/Mount Holly issued this freeze watch at Oct 24, 2016, 2:29 PM EDT for 4 states. It took effect at Oct 26, 2016, 2:00 AM EDT. It was in force for .

The area

The counties it named.

The facts

Issued
Oct 24, 2016, 2:29 PM EDT (18:29 UTC)
In effect from
Oct 26, 2016, 2:00 AM EDT
Expired
Oct 25, 2016, 3:54 AM EDT
In force
Issued by
NWS Philadelphia/Mount Holly

Counties New Castle County, DE, Cecil County, MD, Atlantic County, NJ, Burlington County, NJ, Cumberland County, NJ, Hunterdon County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Somerset County, NJ, Berks County, PA, Bucks County, PA, Chester County, PA, Lehigh County, PA, Montgomery County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 60 km from the middle of the area, began a volume at 18:35 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, 6.5 hours before the alert went out and 201 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 2016-10-24Temperature 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 12:00Z on 2016-10-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 square meters per square second.1939587897Sfc1 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
967 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

709 
WWUS71 KPHI 241829
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
229 PM EDT MON OCT 24 2016


DEZ001-MDZ008-NJZ008>010-012-013-019>022-027-PAZ060>062-101>103-
105-250900-
/O.NEW.KPHI.FZ.A.0007.161026T0600Z-161026T1300Z/
NEW CASTLE-CECIL-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-
WESTERN MONMOUTH-NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-
ATLANTIC-SOUTHEASTERN BURLINGTON-BERKS-LEHIGH-NORTHAMPTON-
WESTERN CHESTER-EASTERN CHESTER-WESTERN MONTGOMERY-UPPER BUCKS-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...MORRISTOWN...
FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...FREEHOLD...MOORESTOWN...
MOUNT HOLLY...JACKSON...MILLVILLE...HAMMONTON...
WHARTON STATE FOREST...READING...ALLENTOWN...BETHLEHEM...EASTON...
HONEY BROOK...OXFORD...WEST CHESTER...KENNETT SQUARE...
COLLEGEVILLE...POTTSTOWN...CHALFONT...PERKASIE
229 PM EDT MON OCT 24 2016

...FREEZE WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
WEDNESDAY MORNING...

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

* LOCATIONS...MUCH OF EASTERN PENNSYLVANIA, PORTIONS OF NEW JERSEY
  INTO PARTS OF BOTH NORTHEAST MARYLAND AND FAR NORTHERN DELAWARE.
  THIS FREEZE WATCH DOES NOT INCLUDE THE URBAN CENTERS NEAR
  PHILADELPHIA.

* TEMPERATURES...LOWS ARE EXPECTED TO RANGE WITHIN SEVERAL DEGREES
  OF 30 EARLY WEDNESDAY MORNING OVER THE COUNTRYSIDE. FROST OR
  FREEZING TEMPERATURES ARE FORECAST WITHIN THE WATCH AREA. 

* TIMING...COLDEST TEMPERATURES SHOULD OCCUR BETWEEN 6 AM AND 730
  AM WEDNESDAY, WITH FROST OR FREEZING TEMPERATURES POSSIBLY
  BEGINNING AS EARLY AS MIDNIGHT IN THE NORMALLY COLDER SHELTERED
  VALLEYS. 

* IMPACTS...THE UPCOMING SEASONABLY COLD FROST OR FREEZE EVENT
  WILL PROBABLY END THE GROWING SEASON IN PARTS OF THIS AREA,
  ESPECIALLY NEAR AND NORTH OF INTERSTATE 78 INCLUSIVE OF THE
  LEHIGH VALLEY. IF AND WHEN WARNINGS OR ADVISORIES ARE ISSUED,
  PROTECTIVE ACTION SHOULD BE CONSIDERED FOR SENSITIVE OUTDOOR
  PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

DRAG
1 follow-up statement
318 
WWUS71 KPHI 250754
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
354 AM EDT TUE OCT 25 2016



DEZ001-MDZ008-NJZ008>010-012-013-019>022-027-PAZ060>062-101>103-
105-252100-
/O.UPG.KPHI.FZ.A.0007.161026T0600Z-161026T1300Z/
/O.NEW.KPHI.FZ.W.0008.161026T0400Z-161026T1300Z/
NEW CASTLE-CECIL-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-
WESTERN MONMOUTH-NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-
ATLANTIC-SOUTHEASTERN BURLINGTON-BERKS-LEHIGH-NORTHAMPTON-
WESTERN CHESTER-EASTERN CHESTER-WESTERN MONTGOMERY-UPPER BUCKS-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...MORRISTOWN...
FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...FREEHOLD...MOORESTOWN...
MOUNT HOLLY...JACKSON...MILLVILLE...HAMMONTON...
WHARTON STATE FOREST...READING...ALLENTOWN...BETHLEHEM...EASTON...
HONEY BROOK...OXFORD...WEST CHESTER...KENNETT SQUARE...
COLLEGEVILLE...POTTSTOWN...CHALFONT...PERKASIE
354 AM EDT TUE OCT 25 2016

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT
WEDNESDAY...

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

* LOCATIONS...MOST OF SOUTHEASTERN PENNSYLVANIA...MOST OF CENTRAL
  AND SOUTHERN NEW JERSEY...AND FAR NORTHERN DELMARVA...EXCLUDING
  THE URBAN CORRIDOR FROM PHILADELPHIA TO TRENTON.

* TEMPERATURES...LOWS WILL RANGE FROM THE UPPER 20S TO LOWER 30S.

* TIMING...THE LOWEST TEMPERATURES ARE EXPECTED JUST BEFORE
  SUNRISE WEDNESDAY MORNING...BUT FROST COULD DEVELOP AS EARLY AS
  MIDNIGHT.

* IMPACTS...OUTDOOR SENSITIVE PLANTS AND CROPS COULD BE DAMAGED
  OR KILLED BY THE FROST AND FREEZE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

NJZ016>018-252100-
/O.NEW.KPHI.FZ.W.0008.161026T0400Z-161026T1300Z/
SALEM-GLOUCESTER-CAMDEN-
INCLUDING THE CITIES OF...PENNSVILLE...GLASSBORO...CAMDEN...
CHERRY HILL
354 AM EDT TUE OCT 25 2016

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT
WEDNESDAY...

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

* LOCATIONS...MOST OF SOUTHEASTERN PENNSYLVANIA...MOST OF CENTRAL
  AND SOUTHERN NEW JERSEY...AND FAR NORTHERN DELMARVA...EXCLUDING
  THE URBAN CORRIDOR FROM PHILADELPHIA TO TRENTON.

* TEMPERATURES...LOWS WILL RANGE FROM THE UPPER 20S TO LOWER 30S.

* TIMING...THE LOWEST TEMPERATURES ARE EXPECTED JUST BEFORE
  SUNRISE WEDNESDAY MORNING...BUT FROST COULD DEVELOP AS EARLY AS
  MIDNIGHT.

* IMPACTS...OUTDOOR SENSITIVE PLANTS AND CROPS COULD BE DAMAGED
  OR KILLED BY THE FROST AND FREEZE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

NJZ015-PAZ070-071-104-106-252100-
/O.NEW.KPHI.FR.Y.0011.161026T0400Z-161026T1300Z/
MERCER-DELAWARE-PHILADELPHIA-EASTERN MONTGOMERY-LOWER BUCKS-
INCLUDING THE CITIES OF...TRENTON...MEDIA...PHILADELPHIA...
NORRISTOWN...LANSDALE...MORRISVILLE...DOYLESTOWN
354 AM EDT TUE OCT 25 2016

...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT
WEDNESDAY.

* LOCATIONS...THE URBAN CORRIDOR FROM PHILADELPHIA TO TRENTON AND
  SURROUNDING PENNSYLVANIA SUBURBS.

* TEMPERATURES...LOWS ARE EXPECTED TO BE IN THE MID 30S.

* TIMING...THE LOWEST TEMPERATURES ARE EXPECTED AROUND SUNRISE
  WEDNESDAY MORNING...BUT FROST COULD DEVELOP SHORTLY AFTER
  MIDNIGHT.

* IMPACTS...OUTDOOR SENSITIVE PLANTS AND CROPS THAT ARE NOT
  PROTECTED COULD BE DAMAGED OR KILLED BY THE FROST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

DEZ002-003-MDZ012-015-019-020-NJZ023-252100-
/O.NEW.KPHI.FR.Y.0011.161026T0400Z-161026T1300Z/
KENT-INLAND SUSSEX-KENT MD-QUEEN ANNES-TALBOT-CAROLINE-CAPE MAY-
INCLUDING THE CITIES OF...DOVER...GEORGETOWN...CHESTERTOWN...
CENTREVILLE...EASTON...DENTON...CAPE MAY COURT HOUSE
354 AM EDT TUE OCT 25 2016

...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT
WEDNESDAY.

* LOCATIONS...CAPE MAY COUNTY AND MOST OF NORTHERN DELMARVA.

* TEMPERATURES...LOWS ARE EXPECTED TO BE IN THE MID 30S.

* TIMING...THE LOWEST TEMPERATURES ARE EXPECTED AROUND SUNRISE
  WEDNESDAY MORNING...BUT FROST COULD DEVELOP SHORTLY AFTER
  MIDNIGHT.

* IMPACTS...OUTDOOR SENSITIVE PLANTS AND CROPS THAT ARE NOT
  PROTECTED COULD BE DAMAGED OR KILLED BY THE FROST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Nearby

Freeze Watches in New Jersey, 2016Freeze Watches in Pennsylvania, 2016Freeze Watches in Delaware, 2016Every freeze watch 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.