Alert archive / New Jersey / Freeze Warnings in 2026

Freeze Warning 2, NWS Philadelphia/Mount Holly

April 8, 20264 states

NWS Philadelphia/Mount Holly issued this freeze warning at Apr 8, 2026, 8:55 AM EDT for 4 states. It took effect at Apr 8, 2026, 10:00 PM EDT. It was in force for 11 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
Apr 8, 2026, 8:55 AM EDT (12:55 UTC)
In effect from
Apr 8, 2026, 10:00 PM EDT
Expired
Apr 9, 2026, 9:00 AM EDT
In force
11 hr
Issued by
NWS Philadelphia/Mount Holly
All 24 counties

Kent County, DE, New Castle County, DE, Sussex County, DE, Caroline County, MD, Kent County, MD, Queen Anne's County, MD, Talbot County, MD, Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ, Salem County, NJ, Berks County, PA, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 77 km from the middle of the area, began a volume at 12:58 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 0.9 hours before the alert went out and 202 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, Washington/Dulle, VA at 12:00Z on 2026-04-08Temperature 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, Washington/Dulle, VA at 12:00Z on 2026-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -41 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
1534 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
-41 m²/s²
0-3 km storm-relative helicity
38 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

892 
WWUS71 KPHI 081255
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
855 AM EDT Wed Apr 8 2026

DEZ001>003-MDZ012-015-019-020-NJZ012>023-027-090200-
/O.EXP.KPHI.FZ.W.0001.000000T0000Z-260408T1300Z/
/O.UPG.KPHI.FZ.A.0002.260409T0200Z-260409T1300Z/
/O.NEW.KPHI.FZ.W.0002.260409T0200Z-260409T1300Z/
New Castle-Kent-Inland Sussex-Kent MD-Queen Annes-Talbot-Caroline-
Middlesex-Western Monmouth-Eastern Monmouth-Mercer-Salem-
Gloucester-Camden-Northwestern Burlington-Ocean-Cumberland-
Atlantic-Cape May-Southeastern Burlington-
Including the cities of New Brunswick, Wilmington, Cape May Court
House, Trenton, Millville, Freehold, Denton, Hammonton, Wharton
State Forest, Camden, Cherry Hill, Chestertown, Georgetown,
Easton, Jackson, Moorestown, Sandy Hook, Mount Holly, Pennsville,
Glassboro, Dover, and Centreville
855 AM EDT Wed Apr 8 2026

...FREEZE WARNING IN EFFECT FROM 10 PM THIS EVENING TO 9 AM EDT 
THURSDAY...
...FREEZE WARNING WILL EXPIRE AT 9 AM EDT THIS MORNING...

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

* WHERE...Portions of central, northern, and southern Delaware, 
  northeast Maryland, and central, northern, and southern New Jersey.

* WHEN...From 10 PM this evening to 9 AM EDT Thursday.

* 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.

&&

$$

PAZ060-070-071-101>104-106-090200-
/O.EXP.KPHI.FZ.W.0001.000000T0000Z-260408T1300Z/
/O.UPG.KPHI.FZ.A.0002.260409T0400Z-260409T1300Z/
/O.NEW.KPHI.FZ.W.0002.260409T0400Z-260409T1300Z/
Berks-Delaware-Philadelphia-Western Chester-Eastern Chester-
Western Montgomery-Eastern Montgomery-Lower Bucks-
Including the cities of Media, Pottstown, Norristown, West
Chester, Morrisville, Reading, Oxford, Philadelphia, Honey Brook,
Collegeville, Lansdale, Kennett Square, and Doylestown
855 AM EDT Wed Apr 8 2026

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT 
THURSDAY...
...FREEZE WARNING WILL EXPIRE AT 9 AM EDT THIS MORNING...

* WHAT...Sub-freezing temperatures as low as 25 expected.

* WHERE...Berks, Delaware, Eastern Chester, Eastern Montgomery, 
  Lower Bucks, Philadelphia, Western Chester, and Western Montgomery 
  Counties.

* WHEN...From midnight tonight to 9 AM EDT Thursday.

* 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.

&&

$$

NJZ024>026-081400-
/O.EXP.KPHI.FZ.W.0001.000000T0000Z-260408T1300Z/
Atlantic Coastal Cape May-Coastal Atlantic-Coastal Ocean-
Including the cities of Atlantic City, Long Beach Island, and
Ocean City
855 AM EDT Wed Apr 8 2026

...FREEZE WARNING WILL EXPIRE AT 9 AM EDT THIS MORNING...

$$

RCM
3 follow-up statements
842 
WWUS71 KPHI 090152
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
952 PM EDT Wed Apr 8 2026

DEZ001>003-MDZ012-015-019-020-NJZ012>023-027-091300-
/O.CON.KPHI.FZ.W.0002.260409T0200Z-260409T1300Z/
New Castle-Kent-Inland Sussex-Kent MD-Queen Annes-Talbot-Caroline-
Middlesex-Western Monmouth-Eastern Monmouth-Mercer-Salem-
Gloucester-Camden-Northwestern Burlington-Ocean-Cumberland-
Atlantic-Cape May-Southeastern Burlington-
Including the cities of Easton, Camden, Moorestown, New
Brunswick, Glassboro, Sandy Hook, Wharton State Forest,
Georgetown, Mount Holly, Centreville, Denton, Chestertown,
Hammonton, Freehold, Cherry Hill, Cape May Court House,
Wilmington, Trenton, Millville, Dover, Pennsville, and Jackson
952 PM EDT Wed Apr 8 2026

...FREEZE WARNING IN EFFECT UNTIL 9 AM EDT THURSDAY...

* WHAT...Sub-freezing temperatures as low as 26 expected.

* WHERE...Portions of central, northern, and southern Delaware, 
  northeast Maryland, and central, northern, and southern New Jersey.

* WHEN...Until 9 AM EDT Thursday.

* 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.

&&

$$

PAZ060-070-071-101>104-106-091300-
/O.CON.KPHI.FZ.W.0002.260409T0400Z-260409T1300Z/
Berks-Delaware-Philadelphia-Western Chester-Eastern Chester-
Western Montgomery-Eastern Montgomery-Lower Bucks-
Including the cities of Media, Honey Brook, West Chester,
Philadelphia, Lansdale, Morrisville, Doylestown, Kennett Square,
Norristown, Pottstown, Reading, Oxford, and Collegeville
952 PM EDT Wed Apr 8 2026

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

* WHAT...Sub-freezing temperatures as low as 24 expected.

* WHERE...Berks, Delaware, Eastern Chester, Eastern Montgomery, 
  Lower Bucks, Philadelphia, Western Chester, and Western Montgomery 
  Counties.

* WHEN...From midnight tonight to 9 AM EDT Thursday.

* 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.

&&

$$

Guzzo
557 
WWUS71 KPHI 090634
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
234 AM EDT Thu Apr 9 2026

DEZ001>003-MDZ012-015-019-020-NJZ012>023-027-091300-
/O.CON.KPHI.FZ.W.0002.000000T0000Z-260409T1300Z/
New Castle-Kent-Inland Sussex-Kent MD-Queen Annes-Talbot-Caroline-
Middlesex-Western Monmouth-Eastern Monmouth-Mercer-Salem-
Gloucester-Camden-Northwestern Burlington-Ocean-Cumberland-
Atlantic-Cape May-Southeastern Burlington-
Including the cities of Freehold, Cherry Hill, Chestertown,
Hammonton, Wilmington, Easton, Mount Holly, Georgetown, Cape May
Court House, Pennsville, New Brunswick, Denton, Trenton,
Centreville, Millville, Camden, Dover, Moorestown, Glassboro,
Sandy Hook, Wharton State Forest, and Jackson
234 AM EDT Thu Apr 9 2026

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING...

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

* WHERE...Portions of central, northern, and southern Delaware, 
  northeast Maryland, and central, northern, and southern New Jersey.

* WHEN...Until 9 AM EDT this 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.

&&

$$

PAZ060-070-071-101>104-106-091300-
/O.CON.KPHI.FZ.W.0002.000000T0000Z-260409T1300Z/
Berks-Delaware-Philadelphia-Western Chester-Eastern Chester-
Western Montgomery-Eastern Montgomery-Lower Bucks-
Including the cities of Honey Brook, Lansdale, Media, Reading,
Philadelphia, Morrisville, West Chester, Collegeville,
Norristown, Doylestown, Oxford, Kennett Square, and Pottstown
234 AM EDT Thu Apr 9 2026

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING...

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

* WHERE...Berks, Delaware, Eastern Chester, Eastern Montgomery, 
  Lower Bucks, Philadelphia, Western Chester, and Western Montgomery 
  Counties.

* WHEN...Until 9 AM EDT this 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.

&&

$$

Hoeflich
155 
WWUS71 KPHI 091247
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
847 AM EDT Thu Apr 9 2026

DEZ001>003-MDZ012-015-019-020-NJZ012>023-027-PAZ060-070-071-101>104-
106-091400-
/O.EXP.KPHI.FZ.W.0002.000000T0000Z-260409T1300Z/
New Castle-Kent-Inland Sussex-Kent MD-Queen Annes-Talbot-Caroline-
Middlesex-Western Monmouth-Eastern Monmouth-Mercer-Salem-
Gloucester-Camden-Northwestern Burlington-Ocean-Cumberland-
Atlantic-Cape May-Southeastern Burlington-Berks-Delaware-
Philadelphia-Western Chester-Eastern Chester-Western Montgomery-
Eastern Montgomery-Lower Bucks-
Including the cities of Doylestown, Mount Holly, Trenton, Kennett
Square, Centreville, Sandy Hook, Philadelphia, Hammonton,
Pottstown, Pennsville, Millville, Morrisville, Glassboro, Easton,
Cherry Hill, Reading, Honey Brook, New Brunswick, Wilmington,
Chestertown, Oxford, Georgetown, West Chester, Denton, Media,
Freehold, Cape May Court House, Moorestown, Lansdale, Dover,
Jackson, Norristown, Camden, Wharton State Forest, and
Collegeville
847 AM EDT Thu Apr 9 2026

...FREEZE WARNING WILL EXPIRE AT 9 AM EDT THIS MORNING...

Temperatures are rising above freezing.

$$

RCM

Nearby

Freeze Warnings in New Jersey, 2026Freeze Warnings in Pennsylvania, 2026Freeze Warnings in Maryland, 2026Every freeze warning in 2026

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.