Alert archive / New Jersey / Freeze Warnings in 2024
Freeze Warning 2, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this freeze warning at Apr 24, 2024, 2:59 PM EDT for Morris County, Sussex County, Warren County, New Jersey; Lehigh County, Northampton County, Pennsylvania. It took effect at Apr 25, 2024, 3:00 AM EDT. It was in force for 3 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 24, 2024, 2:59 PM EDT (18:59 UTC)
- In effect from
- Apr 25, 2024, 3:00 AM EDT
- Expired
- Apr 25, 2024, 6:07 AM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Morris County, NJ, Sussex County, NJ, Warren County, NJ, Lehigh County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 113 km from the middle of the area, began a volume at 18:59 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, 7.0 hours before the alert went out and 182 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1064 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 197 m²/s²
- 0-3 km storm-relative helicity
- 282 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
517 WWUS71 KPHI 241859 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 259 PM EDT Wed Apr 24 2024 NJZ001-007-008-250800- /O.UPG.KPHI.FZ.A.0001.240425T0700Z-240425T1300Z/ /O.NEW.KPHI.FZ.W.0002.240425T0700Z-240425T1300Z/ Sussex-Warren-Morris- Including the cities of Newton, Washington, and Morristown 259 PM EDT Wed Apr 24 2024 ...FREEZE WARNING IN EFFECT FROM 3 AM TO 9 AM EDT THURSDAY... * WHAT...Sub-freezing temperatures as low as 31 expected. * WHERE...Sussex, Warren and Morris. * WHEN...From 3 AM to 9 AM EDT Thursday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ PAZ061-062-250800- /O.NEW.KPHI.FZ.W.0002.240425T0700Z-240425T1300Z/ Lehigh-Northampton- Including the cities of Allentown, Bethlehem, and Easton 259 PM EDT Wed Apr 24 2024 ...FREEZE WARNING IN EFFECT FROM 3 AM TO 9 AM EDT THURSDAY... * WHAT...Sub-freezing temperatures as low as 31 expected. * WHERE...Lehigh and Northampton. * WHEN...From 3 AM to 9 AM EDT Thursday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ PAZ060-250800- /O.NEW.KPHI.FR.Y.0005.240425T0700Z-240425T1300Z/ Berks- Including the city of Reading 259 PM EDT Wed Apr 24 2024 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM EDT THURSDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Berks. * WHEN...From 3 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. && $$ NJZ009-PAZ105-250800- /O.NEW.KPHI.FR.Y.0005.240425T0700Z-240425T1300Z/ Hunterdon-Upper Bucks- Including the cities of Flemington, Chalfont, and Perkasie 259 PM EDT Wed Apr 24 2024 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM EDT THURSDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...In New Jersey, Hunterdon. In Pennsylvania, Upper Bucks. * WHEN...From 3 AM to 9 AM EDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
3 follow-up statements
609 WWUS71 KPHI 250512 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 112 AM EDT Thu Apr 25 2024 NJZ001-007-008-260000- /O.NEW.KPHI.FZ.A.0002.240426T0600Z-240426T1300Z/ /O.CON.KPHI.FZ.W.0002.240425T0700Z-240425T1300Z/ Sussex-Warren-Morris- Including the cities of Newton, Washington, and Morristown 112 AM EDT Thu Apr 25 2024 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 29 expected. For the Freeze Watch, sub-freezing temperatures as low as 31 possible. * WHERE...Sussex, Warren and Morris. * WHEN...For the Freeze Warning, until 9 AM EDT this morning. For the Freeze Watch, from late tonight through Friday morning. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ PAZ061-062-260000- /O.NEW.KPHI.FZ.A.0002.240426T0600Z-240426T1300Z/ /O.CON.KPHI.FZ.W.0002.240425T0700Z-240425T1300Z/ Lehigh-Northampton- Including the cities of Allentown, Bethlehem, and Easton 112 AM EDT Thu Apr 25 2024 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 31 expected. For the Freeze Watch, sub-freezing temperatures as low as 31 possible. * WHERE...Lehigh and Northampton. * WHEN...For the Freeze Warning, until 9 AM EDT this morning. For the Freeze Watch, from late tonight through Friday morning. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ NJZ009-PAZ105-260000- /O.NEW.KPHI.FZ.A.0002.240426T0600Z-240426T1300Z/ /O.CON.KPHI.FR.Y.0005.240425T0700Z-240425T1300Z/ Hunterdon-Upper Bucks- Including the cities of Flemington, Chalfont, and Perkasie 112 AM EDT Thu Apr 25 2024 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...FREEZE WATCH IN EFFECT FROM LATE TONIGHT 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 31 possible. * WHERE...In New Jersey, Hunterdon. In Pennsylvania, Upper Bucks. * 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 will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ PAZ060-251300- /O.CON.KPHI.FR.Y.0005.240425T0700Z-240425T1300Z/ Berks- Including the city of Reading 112 AM EDT Thu Apr 25 2024 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Berks. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ NJZ010-012-013-015>022-027-PAZ103-106-260000- /O.NEW.KPHI.FZ.A.0002.240426T0600Z-240426T1300Z/ Somerset-Middlesex-Western Monmouth-Mercer-Salem-Gloucester- Camden-Northwestern Burlington-Ocean-Cumberland-Atlantic- Southeastern Burlington-Western Montgomery-Lower Bucks- Including the cities of Somerville, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Wharton State Forest, Collegeville, Pottstown, Morrisville, and Doylestown 112 AM EDT Thu Apr 25 2024 ...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... * WHAT...Sub-freezing temperatures as low as 31 possible. * WHERE...Portions of central, northern and southern New Jersey and southeast Pennsylvania. * WHEN...From late tonight through Friday morning. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
877 WWUS71 KPHI 250836 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 436 AM EDT Thu Apr 25 2024 NJZ007-008-PAZ061-062-252145- /O.CAN.KPHI.FZ.W.0002.000000T0000Z-240425T1300Z/ /O.EXA.KPHI.FR.Y.0005.000000T0000Z-240425T1300Z/ /O.CON.KPHI.FZ.A.0002.240426T0600Z-240426T1300Z/ Warren-Morris-Lehigh-Northampton- Including the cities of Washington, Morristown, Allentown, Bethlehem, and Easton 436 AM EDT Thu Apr 25 2024 ...FROST ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... ...FREEZE WARNING IS CANCELLED... * WHAT...For the Frost Advisory, temperatures as low as 35 will result in frost formation. For the Freeze Watch, sub-freezing temperatures as low as 31 possible. * WHERE...In New Jersey, Warren and Morris. In Pennsylvania, Lehigh and Northampton. * WHEN...For the Frost Advisory, until 9 AM EDT this morning. For the Freeze Watch, from late tonight through Friday morning. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ NJZ001-252145- /O.CON.KPHI.FZ.W.0002.000000T0000Z-240425T1300Z/ /O.CON.KPHI.FZ.A.0002.240426T0600Z-240426T1300Z/ Sussex- Including the city of Newton 436 AM EDT Thu Apr 25 2024 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 31. For the Freeze Watch, sub-freezing temperatures as low as 30 possible. * WHERE...Sussex. * WHEN...For the Freeze Warning, until 9 AM EDT this morning. For the Freeze Watch, from late tonight through Friday morning. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ NJZ009-PAZ105-252145- /O.CON.KPHI.FR.Y.0005.000000T0000Z-240425T1300Z/ /O.CON.KPHI.FZ.A.0002.240426T0600Z-240426T1300Z/ Hunterdon-Upper Bucks- Including the cities of Flemington, Chalfont, and Perkasie 436 AM EDT Thu Apr 25 2024 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... * WHAT...For the Frost Advisory, temperatures as low as 35 will result in frost formation. For the Freeze Watch, sub-freezing temperatures as low as 31 possible. * WHERE...In New Jersey, Hunterdon. In Pennsylvania, Upper Bucks. * WHEN...For the Frost Advisory, until 9 AM EDT this morning. For the Freeze Watch, from late tonight through Friday morning. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ PAZ060-251300- /O.CON.KPHI.FR.Y.0005.000000T0000Z-240425T1300Z/ Berks- Including the city of Reading 436 AM EDT Thu Apr 25 2024 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Temperatures as low as 35 will result in frost formation. * WHERE...Berks. * 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. && $$ NJZ010-012-013-015>022-027-PAZ103-106-252145- /O.CON.KPHI.FZ.A.0002.240426T0600Z-240426T1300Z/ Somerset-Middlesex-Western Monmouth-Mercer-Salem-Gloucester- Camden-Northwestern Burlington-Ocean-Cumberland-Atlantic- Southeastern Burlington-Western Montgomery-Lower Bucks- Including the cities of Somerville, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Wharton State Forest, Collegeville, Pottstown, Morrisville, and Doylestown 436 AM EDT Thu Apr 25 2024 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... * WHAT...Sub-freezing temperatures as low as 31 possible. * WHERE...Portions of central, northern and southern New Jersey and southeast Pennsylvania. * WHEN...From late tonight through Friday morning. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
453 WWUS71 KPHI 251007 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 607 AM EDT Thu Apr 25 2024 NJZ001-252315- /O.CAN.KPHI.FZ.W.0002.000000T0000Z-240425T1300Z/ /O.EXA.KPHI.FR.Y.0005.000000T0000Z-240425T1300Z/ /O.CON.KPHI.FZ.A.0002.240426T0600Z-240426T1300Z/ Sussex- Including the city of Newton 607 AM EDT Thu Apr 25 2024 ...FROST ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... ...FREEZE WARNING IS CANCELLED... * WHAT...For the Frost Advisory, temperatures as low as 35 will result in frost formation. For the Freeze Watch, sub-freezing temperatures as low as 30 possible. * WHERE...Sussex. * 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 will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ NJZ009-PAZ061-062-105-252315- /O.CAN.KPHI.FR.Y.0005.000000T0000Z-240425T1300Z/ /O.CON.KPHI.FZ.A.0002.240426T0600Z-240426T1300Z/ Hunterdon-Lehigh-Northampton-Upper Bucks- Including the cities of Flemington, Allentown, Bethlehem, Easton, Chalfont, and Perkasie 607 AM EDT Thu Apr 25 2024 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... ...FROST ADVISORY IS CANCELLED... * WHAT...Sub-freezing temperatures as low as 32 possible. * WHERE...In New Jersey, Hunterdon. In Pennsylvania, Lehigh, Northampton and Upper Bucks. * WHEN...From late tonight through Friday morning. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ PAZ060-251115- /O.CAN.KPHI.FR.Y.0005.000000T0000Z-240425T1300Z/ Berks- Including the city of Reading 607 AM EDT Thu Apr 25 2024 ...FROST ADVISORY IS CANCELLED... Temperatures have remained too warm for frost. $$ NJZ007-008-252315- /O.CON.KPHI.FR.Y.0005.000000T0000Z-240425T1300Z/ /O.CON.KPHI.FZ.A.0002.240426T0600Z-240426T1300Z/ Warren-Morris- Including the cities of Washington and Morristown 607 AM EDT Thu Apr 25 2024 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... * WHAT...For the Frost Advisory, temperatures as low as 36 will result in frost formation. For the Freeze Watch, sub-freezing temperatures as low as 31 possible. * WHERE...Warren and Morris. * WHEN...For the Frost Advisory, until 9 AM EDT this morning. For the Freeze Watch, from late tonight through Friday morning. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ NJZ010-012-013-015>022-027-PAZ103-106-252315- /O.CON.KPHI.FZ.A.0002.240426T0600Z-240426T1300Z/ Somerset-Middlesex-Western Monmouth-Mercer-Salem-Gloucester- Camden-Northwestern Burlington-Ocean-Cumberland-Atlantic- Southeastern Burlington-Western Montgomery-Lower Bucks- Including the cities of Somerville, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Wharton State Forest, Collegeville, Pottstown, Morrisville, and Doylestown 607 AM EDT Thu Apr 25 2024 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... * WHAT...Sub-freezing temperatures as low as 31 possible. * WHERE...Portions of central, northern and southern New Jersey and southeast Pennsylvania. * WHEN...From late tonight through Friday morning. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 24, 2:59 PM EDT | Frost Advisory | PHI | Hunterdon, Morris, Sussex, Warren | 18 hr |
Nearby
Freeze Warnings in New Jersey, 2024Freeze Warnings in Pennsylvania, 2024Every freeze warning in 2024
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.