Alert archive / New Jersey / Frost Advisories in 2020

Frost Advisory 1, NWS Philadelphia/Mount Holly

April 14, 202015 counties in New Jersey; 6 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this frost advisory at Apr 14, 2020, 3:34 PM EDT for 15 counties in New Jersey; 6 counties in Pennsylvania. It took effect at Apr 16, 2020, 1:00 AM EDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Apr 14, 2020, 3:34 PM EDT (19:34 UTC)
In effect from
Apr 16, 2020, 1:00 AM EDT
Expired
Apr 16, 2020, 6:19 AM EDT
In force
5 hr
Issued by
NWS Philadelphia/Mount Holly
All 21 counties

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, Morris County, NJ, Ocean County, NJ, Salem County, NJ, Somerset County, NJ, Sussex County, NJ, Warren 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), 57 km from the middle of the area, began a volume at 19:37 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, 7.6 hours before the alert went out and 191 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 2020-04-14Temperature 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 2020-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -273 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
1493 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
-273 m²/s²
0-3 km storm-relative helicity
52 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

177 
WWUS71 KPHI 141934
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
334 PM EDT Tue Apr 14 2020

NJZ001-007-PAZ060>062-150845-
/O.NEW.KPHI.FR.Y.0001.200416T0500Z-200416T1300Z/
Sussex-Warren-Berks-Lehigh-Northampton-
Including the cities of Newton, Washington, Reading, Allentown, 
Bethlehem, and Easton
334 PM EDT Tue Apr 14 2020

...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM EDT THURSDAY...

* WHAT...Temperatures as low as 32 will result in frost 
  formation.

* WHERE...In New Jersey, Sussex and Warren. In Pennsylvania, 
  Berks, Lehigh and Northampton.

* WHEN...From 1 AM to 9 AM EDT Thursday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

NJZ008>010-012-013-015-019>021-027-PAZ101-103-105-150845-
/O.NEW.KPHI.FR.Y.0001.200416T0500Z-200416T1300Z/
Morris-Hunterdon-Somerset-Middlesex-Western Monmouth-Mercer-
Northwestern Burlington-Ocean-Cumberland-Southeastern Burlington-
Western Chester-Western Montgomery-Upper Bucks-
Including the cities of Morristown, Flemington, Somerville, 
New Brunswick, Freehold, Trenton, Moorestown, Mount Holly, 
Jackson, Millville, Wharton State Forest, Honey Brook, Oxford, 
Collegeville, Pottstown, Chalfont, and Perkasie
334 PM EDT Tue Apr 14 2020

...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM EDT THURSDAY...

* WHAT...Temperatures as low as 34 will result in frost 
  formation.

* WHERE...Portions of New Jersey and southeast Pennsylvania.

* WHEN...From 1 AM to 9 AM EDT Thursday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$
Deal
6 follow-up statements
315 
WWUS71 KPHI 150610
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
210 AM EDT Wed Apr 15 2020

NJZ016>018-022-151915-
/O.EXA.KPHI.FR.Y.0001.200416T0500Z-200416T1300Z/
Salem-Gloucester-Camden-Atlantic-
Including the cities of Pennsville, Glassboro, Camden, 
Cherry Hill, and Hammonton
210 AM EDT Wed Apr 15 2020

...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM EDT THURSDAY...

* WHAT...Temperatures as low as 35 will result in frost 
  formation.

* WHERE...Salem, Gloucester, Camden and Atlantic.

* WHEN...From 1 AM to 9 AM EDT Thursday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if left
  uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

NJZ001-007-PAZ060>062-151915-
/O.CON.KPHI.FR.Y.0001.200416T0500Z-200416T1300Z/
Sussex-Warren-Berks-Lehigh-Northampton-
Including the cities of Newton, Washington, Reading, Allentown, 
Bethlehem, and Easton
210 AM EDT Wed Apr 15 2020

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT
THURSDAY...

* WHAT...Temperatures as low as 31 will result in frost 
  formation.

* WHERE...In Pennsylvania, Northampton, Lehigh and Berks. In New 
  Jersey, Warren and Sussex.

* WHEN...From 1 AM to 9 AM EDT Thursday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

NJZ008>010-012-013-015-019>021-027-PAZ101-103-105-151915-
/O.CON.KPHI.FR.Y.0001.200416T0500Z-200416T1300Z/
Morris-Hunterdon-Somerset-Middlesex-Western Monmouth-Mercer-
Northwestern Burlington-Ocean-Cumberland-Southeastern Burlington-
Western Chester-Western Montgomery-Upper Bucks-
Including the cities of Morristown, Flemington, Somerville, 
New Brunswick, Freehold, Trenton, Moorestown, Mount Holly, 
Jackson, Millville, Wharton State Forest, Honey Brook, Oxford, 
Collegeville, Pottstown, Chalfont, and Perkasie
210 AM EDT Wed Apr 15 2020

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT
THURSDAY...

* WHAT...Temperatures as low as 33 will result in frost 
  formation.

* WHERE...Portions of central, northern, northwest and southern 
  New Jersey and southeast Pennsylvania.

* WHEN...From 1 AM to 9 AM EDT Thursday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

Johnson
494 
WWUS71 KPHI 150652
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
252 AM EDT Wed Apr 15 2020

NJZ008>010-PAZ103-105-152000-
/O.NEW.KPHI.FZ.A.0002.200417T0400Z-200417T1300Z/
/O.CON.KPHI.FR.Y.0001.200416T0500Z-200416T1300Z/
Morris-Hunterdon-Somerset-Western Montgomery-Upper Bucks-
Including the cities of Morristown, Flemington, Somerville, 
Collegeville, Pottstown, Chalfont, and Perkasie
252 AM EDT Wed Apr 15 2020

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT
THURSDAY...
...FREEZE WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY
MORNING...

* WHAT...For the Frost Advisory, temperatures as low as 33 will
  result in frost formation. For the Freeze Watch, sub-freezing
  temperatures as low as 30 possible.

* WHERE...In New Jersey, Morris, Hunterdon and Somerset. In 
  Pennsylvania, Western Montgomery and Upper Bucks.

* WHEN...For the Frost Advisory, from 1 AM to 9 AM EDT Thursday. 
  For the Freeze Watch, from late Thursday night through Friday 
  morning.

* IMPACTS...Frost and freeze conditions could kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

NJZ001-007-PAZ060>062-152000-
/O.NEW.KPHI.FZ.A.0002.200417T0400Z-200417T1300Z/
/O.CON.KPHI.FR.Y.0001.200416T0500Z-200416T1300Z/
Sussex-Warren-Berks-Lehigh-Northampton-
Including the cities of Newton, Washington, Reading, Allentown, 
Bethlehem, and Easton
252 AM EDT Wed Apr 15 2020

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT
THURSDAY...
...FREEZE WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY
MORNING...

* WHAT...For the Frost Advisory, temperatures as low as 31 will
  result in frost formation. For the Freeze Watch, sub-freezing
  temperatures as low as 30 possible.

* WHERE...In New Jersey, Sussex and Warren. In Pennsylvania, 
  Berks, Lehigh and Northampton.

* WHEN...For the Frost Advisory, from 1 AM to 9 AM EDT Thursday. 
  For the Freeze Watch, from late Thursday night through Friday 
  morning.

* IMPACTS...Frost and freeze conditions could kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

NJZ012-013-015>022-027-PAZ101-152000-
/O.CON.KPHI.FR.Y.0001.200416T0500Z-200416T1300Z/
Middlesex-Western Monmouth-Mercer-Salem-Gloucester-Camden-
Northwestern Burlington-Ocean-Cumberland-Atlantic-
Southeastern Burlington-Western Chester-
Including the cities of New Brunswick, Freehold, Trenton, 
Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, 
Mount Holly, Jackson, Millville, Hammonton, Wharton State Forest,
Honey Brook, and Oxford
252 AM EDT Wed Apr 15 2020

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT
THURSDAY...

* WHAT...Temperatures as low as 35 will result in frost 
  formation.

* WHERE...Portions of central, northern and southern New Jersey 
  and southeast Pennsylvania.

* WHEN...From 1 AM to 9 AM EDT Thursday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

Staarmann
024 
WWUS71 KPHI 151928
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
328 PM EDT Wed Apr 15 2020

NJZ001-007>010-PAZ060>062-103-105-160830-
/O.CAN.KPHI.FR.Y.0001.200416T0500Z-200416T1300Z/
/O.CON.KPHI.FZ.A.0002.200417T0400Z-200417T1300Z/
Sussex-Warren-Morris-Hunterdon-Somerset-Berks-Lehigh-Northampton-
Western Montgomery-Upper Bucks-
Including the cities of Newton, Washington, Morristown, 
Flemington, Somerville, Reading, Allentown, Bethlehem, Easton, 
Collegeville, Pottstown, Chalfont, and Perkasie
328 PM EDT Wed Apr 15 2020

...FREEZE WATCH REMAINS IN EFFECT FROM LATE THURSDAY NIGHT
THROUGH FRIDAY MORNING...
...FROST ADVISORY IS CANCELLED...

* WHAT...Sub-freezing temperatures as low as 30 possible.

* WHERE...In New Jersey, Morris, Hunterdon, Sussex, Warren and 
  Somerset. In Pennsylvania, Upper Bucks, Western Montgomery, 
  Northampton, Lehigh and Berks.

* WHEN...From late Thursday night through Friday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* ADDITIONAL DETAILS...Frost Advisory is cancelled due to an
  increase in forecast wind speeds which should prevent widespread
  frost formation even as temperatures drop into the lower 30s.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

NJZ012-015-160830-
/O.CAN.KPHI.FR.Y.0001.200416T0500Z-200416T1300Z/
/O.EXA.KPHI.FZ.A.0002.200417T0400Z-200417T1300Z/
Middlesex-Mercer-
Including the cities of New Brunswick and Trenton
328 PM EDT Wed Apr 15 2020

...FREEZE WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY
MORNING...
...FROST ADVISORY IS CANCELLED...

* WHAT...Sub-freezing temperatures as low as 31 possible.

* WHERE...Middlesex and Mercer.

* WHEN...From late Thursday night through Friday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* ADDITIONAL DETAILS...Frost Advisory is cancelled due to an
  increase in forecast wind speeds which should prevent widespread
  frost formation even as temperatures drop into the lower 30s.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

PAZ101-152030-
/O.CAN.KPHI.FR.Y.0001.200416T0500Z-200416T1300Z/
Western Chester-
Including the cities of Honey Brook and Oxford
328 PM EDT Wed Apr 15 2020

...FROST ADVISORY IS CANCELLED...

Frost Advisory is cancelled due to an increase in forecast wind 
speeds which should prevent widespread frost formation even as 
temperatures drop into the lower 30s.

$$

NJZ013-019>022-027-160830-
/O.EXA.KPHI.FZ.A.0002.200417T0400Z-200417T1300Z/
/O.CON.KPHI.FR.Y.0001.200416T0500Z-200416T1300Z/
Western Monmouth-Northwestern Burlington-Ocean-Cumberland-
Atlantic-Southeastern Burlington-
Including the cities of Freehold, Moorestown, Mount Holly, 
Jackson, Millville, Hammonton, and Wharton State Forest
328 PM EDT Wed Apr 15 2020

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT
THURSDAY...
...FREEZE WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY
MORNING...

* WHAT...For the Frost Advisory, temperatures as low as 34 will 
  result in frost formation. For the Freeze Watch, sub-freezing 
  temperatures as low as 32 possible.

* WHERE...Western Monmouth, Northwestern Burlington, Ocean, 
  Cumberland, Atlantic and Southeastern Burlington.

* WHEN...For the Frost Advisory, from 1 AM to 9 AM EDT Thursday. 
  For the Freeze Watch, from late Thursday night through Friday 
  morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

NJZ016>018-160830-
/O.CON.KPHI.FR.Y.0001.200416T0500Z-200416T1300Z/
Salem-Gloucester-Camden-
Including the cities of Pennsville, Glassboro, Camden, 
and Cherry Hill
328 PM EDT Wed Apr 15 2020

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT
THURSDAY...

* WHAT...Temperatures as low as 34 will result in frost 
  formation.

* WHERE...Gloucester, Salem and Camden.

* WHEN...From 1 AM to 9 AM EDT Thursday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

Deal
803 
WWUS71 KPHI 152116
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
516 PM EDT Wed Apr 15 2020

NJZ013-019>022-027-161030-
/O.CON.KPHI.FR.Y.0001.200416T0500Z-200416T1300Z/
/O.CON.KPHI.FZ.A.0002.200417T0400Z-200417T1300Z/
Western Monmouth-Northwestern Burlington-Ocean-Cumberland-
Atlantic-Southeastern Burlington-
Including the cities of Freehold, Moorestown, Mount Holly, 
Jackson, Millville, Hammonton, and Wharton State Forest
516 PM EDT Wed Apr 15 2020

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT
THURSDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE THURSDAY NIGHT
THROUGH FRIDAY MORNING...

* WHAT...For the Frost Advisory, temperatures as low as 34 will 
  result in frost formation. For the Freeze Watch, sub-freezing 
  temperatures as low as 30 possible.

* WHERE...Southeastern Burlington, Atlantic, Ocean, Cumberland, 
  Western Monmouth and Northwestern Burlington.

* WHEN...For the Frost Advisory, from 1 AM to 9 AM EDT Thursday. 
  For the Freeze Watch, from late Thursday night through Friday 
  morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

NJZ016>018-161030-
/O.CON.KPHI.FR.Y.0001.200416T0500Z-200416T1300Z/
Salem-Gloucester-Camden-
Including the cities of Pennsville, Glassboro, Camden, 
and Cherry Hill
516 PM EDT Wed Apr 15 2020

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT
THURSDAY...

* WHAT...Temperatures as low as 34 will result in frost 
  formation.

* WHERE...Gloucester, Salem and Camden.

* WHEN...From 1 AM to 9 AM EDT Thursday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

PAZ101-161030-
/O.EXA.KPHI.FZ.A.0002.200417T0400Z-200417T1300Z/
Western Chester-
Including the cities of Honey Brook and Oxford
516 PM EDT Wed Apr 15 2020

...FREEZE WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY
MORNING...

* WHAT...Sub-freezing temperatures as low as 31 possible.

* WHERE...Western Chester.

* WHEN...From late Thursday night through Friday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

NJZ001-007>010-012-015-PAZ060>062-103-105-161030-
/O.CON.KPHI.FZ.A.0002.200417T0400Z-200417T1300Z/
Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-Mercer-Berks-
Lehigh-Northampton-Western Montgomery-Upper Bucks-
Including the cities of Newton, Washington, Morristown, 
Flemington, Somerville, New Brunswick, Trenton, Reading, 
Allentown, Bethlehem, Easton, Collegeville, Pottstown, Chalfont, 
and Perkasie
516 PM EDT Wed Apr 15 2020

...FREEZE WATCH REMAINS IN EFFECT FROM LATE THURSDAY NIGHT
THROUGH FRIDAY MORNING...

* WHAT...Sub-freezing temperatures as low as 30 possible.

* WHERE...Portions of central, northern and northwest New Jersey 
  and east central and southeast Pennsylvania.

* WHEN...From late Thursday night through Friday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$
578 
WWUS71 KPHI 160703
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
303 AM EDT Thu Apr 16 2020

NJZ013-019>022-027-162015-
/O.CON.KPHI.FR.Y.0001.000000T0000Z-200416T1300Z/
/O.CON.KPHI.FZ.A.0002.200417T0400Z-200417T1300Z/
Western Monmouth-Northwestern Burlington-Ocean-Cumberland-
Atlantic-Southeastern Burlington-
Including the cities of Freehold, Moorestown, Mount Holly, 
Jackson, Millville, Hammonton, and Wharton State Forest
303 AM EDT Thu Apr 16 2020

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY MORNING...

* WHAT...For the Frost Advisory, temperatures as low as 34 will 
  result in frost formation. For the Freeze Watch, sub-freezing 
  temperatures as low as 27 possible.

* WHERE...Southeastern Burlington, Atlantic, Ocean, Cumberland, 
  Western Monmouth and Northwestern Burlington.

* WHEN...For the Frost Advisory, until 9 AM EDT this morning. 
  For the Freeze Watch, from late tonight through Friday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

NJZ016>018-161300-
/O.CON.KPHI.FR.Y.0001.000000T0000Z-200416T1300Z/
Salem-Gloucester-Camden-
Including the cities of Pennsville, Glassboro, Camden, 
and Cherry Hill
303 AM EDT Thu Apr 16 2020

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING...

* WHAT...Temperatures as low as 35 will result in frost 
  formation.

* WHERE...Gloucester, Salem and Camden.

* WHEN...Until 9 AM EDT this morning.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

DEZ002-003-MDZ008-012-015-019-020-PAZ102-162015-
/O.EXA.KPHI.FZ.A.0002.200417T0400Z-200417T1300Z/
Kent-Inland Sussex-Cecil-Kent MD-Queen Annes-Talbot-Caroline-
Eastern Chester-
Including the cities of Dover, Georgetown, Elkton, Chestertown, 
Centreville, Easton, Denton, West Chester, and Kennett Square
303 AM EDT Thu Apr 16 2020

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

* WHAT...Sub-freezing temperatures as low as 30 possible.

* WHERE...In Pennsylvania, Eastern Chester. In Maryland, Cecil, 
  Kent MD, Queen Annes, Talbot and Caroline. In Delaware, Kent 
  and Inland Sussex.

* WHEN...From late tonight through Friday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

NJZ001-007>010-012-015-PAZ060>062-101-103-105-162015-
/O.CON.KPHI.FZ.A.0002.200417T0400Z-200417T1300Z/
Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-Mercer-Berks-
Lehigh-Northampton-Western Chester-Western Montgomery-Upper Bucks-
Including the cities of Newton, Washington, Morristown, 
Flemington, Somerville, New Brunswick, Trenton, Reading, 
Allentown, Bethlehem, Easton, Honey Brook, Oxford, Collegeville, 
Pottstown, Chalfont, and Perkasie
303 AM EDT Thu Apr 16 2020

...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY MORNING...

* WHAT...Sub-freezing temperatures as low as 29 possible.

* WHERE...Portions of central, northern and northwest New Jersey 
  and east central and southeast Pennsylvania.

* WHEN...From late tonight through Friday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$
567 
WWUS71 KPHI 161019
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
619 AM EDT Thu Apr 16 2020

NJZ013-019>022-027-162330-
/O.CAN.KPHI.FR.Y.0001.000000T0000Z-200416T1300Z/
/O.CON.KPHI.FZ.A.0002.200417T0400Z-200417T1300Z/
Western Monmouth-Northwestern Burlington-Ocean-Cumberland-
Atlantic-Southeastern Burlington-
Including the cities of Freehold, Moorestown, Mount Holly, 
Jackson, Millville, Hammonton, and Wharton State Forest
619 AM EDT Thu Apr 16 2020

...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY MORNING...
...FROST ADVISORY IS CANCELLED...

* WHAT...Sub-freezing temperatures as low as 27 possible.

* WHERE...Atlantic, Ocean, Cumberland, Western Monmouth, 
  Northwestern Burlington and Southeastern Burlington.

* WHEN...From late tonight through Friday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

NJZ016>018-161130-
/O.CAN.KPHI.FR.Y.0001.000000T0000Z-200416T1300Z/
Salem-Gloucester-Camden-
Including the cities of Pennsville, Glassboro, Camden, 
and Cherry Hill
619 AM EDT Thu Apr 16 2020

...FROST ADVISORY IS CANCELLED...

Temperatures will continue to increase through the morning.
Therefore, the frost advisory for Thursday morning has been
cancelled. However, another cold night is expected Thursday night
into Friday morning. Another frost advisory may be issued.

$$

DEZ002-003-MDZ008-012-015-019-020-NJZ001-007>010-012-015-
PAZ060>062-101>103-105-162330-
/O.CON.KPHI.FZ.A.0002.200417T0400Z-200417T1300Z/
Kent-Inland Sussex-Cecil-Kent MD-Queen Annes-Talbot-Caroline-
Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-Mercer-Berks-
Lehigh-Northampton-Western Chester-Eastern Chester-
Western Montgomery-Upper Bucks-
Including the cities of Dover, Georgetown, Elkton, Chestertown, 
Centreville, Easton, Denton, Newton, Washington, Morristown, 
Flemington, Somerville, New Brunswick, Trenton, Reading, 
Allentown, Bethlehem, Honey Brook, Oxford, West Chester, 
Kennett Square, Collegeville, Pottstown, Chalfont, and Perkasie
619 AM EDT Thu Apr 16 2020

...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY MORNING...

* WHAT...Sub-freezing temperatures as low as 28 possible.

* WHERE...Portions of central, northern and northwest New 
  Jersey, east central and southeast Pennsylvania, northeast 
  Maryland and central and southern Delaware.

* WHEN...From late tonight through Friday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 13, 9:57 PM EDTAreal Flood WarningPHISomerset2 hr

Nearby

Frost Advisories in New Jersey, 2020Frost Advisories in Pennsylvania, 2020Every frost advisory in 2020

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.