Alert archive / New Jersey / Frost Advisories in 2025
Frost Advisory 5, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this frost advisory at Oct 24, 2025, 10:37 AM EDT for 4 states. It took effect at Oct 25, 2025, 2:00 AM EDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Oct 24, 2025, 10:37 AM EDT (14:37 UTC)
- In effect from
- Oct 25, 2025, 2:00 AM EDT
- Expired
- Oct 25, 2025, 9:00 AM EDT
- In force
- 7 hr
- Issued by
- NWS Philadelphia/Mount Holly
All 23 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
The radar
The Philadelphia radar (KDIX), 78 km from the middle of the area, began a volume at 14:35 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
Washington/Dulle, VA (KIAD), launched 12:00Z, 2.6 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1442 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 145 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
867 WWUS71 KPHI 241437 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 1037 AM EDT Fri Oct 24 2025 NJZ012-013-015>022-027-PAZ060-101-102-104-106-250345- /O.NEW.KPHI.FR.Y.0005.251025T0600Z-251025T1300Z/ Middlesex-Western Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Cumberland-Atlantic-Southeastern Burlington-Berks-Western Chester-Eastern Chester-Eastern Montgomery-Lower Bucks- Including the cities of West Chester, Oxford, Jackson, Cherry Hill, Millville, Lansdale, Trenton, Honey Brook, Morrisville, Doylestown, Reading, Norristown, Wharton State Forest, Glassboro, New Brunswick, Mount Holly, Pennsville, Freehold, Hammonton, Kennett Square, Moorestown, and Camden 1037 AM EDT Fri Oct 24 2025 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of central, northern, and southern New Jersey and east central and southeast Pennsylvania. * WHEN...From 2 AM to 9 AM EDT Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ RCM
5 follow-up statements
780 WWUS71 KPHI 241716 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 116 PM EDT Fri Oct 24 2025 DEZ001>003-MDZ012-015-020-251300- /O.EXA.KPHI.FR.Y.0005.251025T0600Z-251025T1300Z/ New Castle-Kent-Inland Sussex-Kent MD-Queen Annes-Caroline- Including the cities of Dover, Chestertown, Denton, Wilmington, Centreville, and Georgetown 116 PM EDT Fri Oct 24 2025 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...In Delaware, Kent, New Castle, and Inland Sussex Counties. In Maryland, Caroline, Kent MD, and Queen Annes Counties. * WHEN...From 2 AM to 9 AM EDT Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ NJZ012-013-015>022-027-PAZ060-101-102-104-106-251300- /O.CON.KPHI.FR.Y.0005.251025T0600Z-251025T1300Z/ Middlesex-Western Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Cumberland-Atlantic-Southeastern Burlington-Berks-Western Chester-Eastern Chester-Eastern Montgomery-Lower Bucks- Including the cities of West Chester, Oxford, Jackson, Cherry Hill, Millville, Lansdale, Trenton, Honey Brook, Morrisville, Doylestown, Reading, Norristown, Wharton State Forest, Glassboro, New Brunswick, Mount Holly, Pennsville, Freehold, Hammonton, Kennett Square, Moorestown, and Camden 116 PM EDT Fri Oct 24 2025 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Portions of central, northern, and southern New Jersey and east central and southeast Pennsylvania. * WHEN...From 2 AM to 9 AM EDT Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ RCM
919 WWUS71 KPHI 241844 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 244 PM EDT Fri Oct 24 2025 MDZ019-251300- /O.EXA.KPHI.FR.Y.0005.251025T0600Z-251025T1300Z/ Talbot- Including the cities of Easton 244 PM EDT Fri Oct 24 2025 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Talbot County. * WHEN...From 2 AM to 9 AM EDT Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ DEZ001>003-MDZ012-015-020-251300- /O.CON.KPHI.FR.Y.0005.251025T0600Z-251025T1300Z/ New Castle-Kent-Inland Sussex-Kent MD-Queen Annes-Caroline- Including the cities of Dover, Chestertown, Denton, Wilmington, Centreville, and Georgetown 244 PM EDT Fri Oct 24 2025 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...In Delaware, Kent, New Castle, and Inland Sussex Counties. In Maryland, Caroline, Kent MD, and Queen Annes Counties. * WHEN...From 2 AM to 9 AM EDT Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ NJZ012-013-015>022-027-PAZ060-101-102-104-106-251300- /O.CON.KPHI.FR.Y.0005.251025T0600Z-251025T1300Z/ Middlesex-Western Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Cumberland-Atlantic-Southeastern Burlington-Berks-Western Chester-Eastern Chester-Eastern Montgomery-Lower Bucks- Including the cities of West Chester, Oxford, Jackson, Cherry Hill, Millville, Lansdale, Trenton, Honey Brook, Morrisville, Doylestown, Reading, Norristown, Wharton State Forest, Glassboro, New Brunswick, Mount Holly, Pennsville, Freehold, Hammonton, Kennett Square, Moorestown, and Camden 244 PM EDT Fri Oct 24 2025 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Portions of central, northern, and southern New Jersey and east central and southeast Pennsylvania. * WHEN...From 2 AM to 9 AM EDT Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ RCM
246 WWUS71 KPHI 242216 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 616 PM EDT Fri Oct 24 2025 NJZ023-PAZ070-251300- /O.EXA.KPHI.FR.Y.0005.251025T0600Z-251025T1300Z/ Cape May-Delaware- Including the cities of Media and Cape May Court House 616 PM EDT Fri Oct 24 2025 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY... * WHAT...Temperatures as low as 33 degrees will result in frost formation. * WHERE...In New Jersey, Cape May County. In Pennsylvania, Delaware County. * WHEN...From 2 AM to 9 AM EDT Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ DEZ001>003-MDZ012-015-019-020-NJZ012-013-015>022-027-PAZ060-101-102- 104-106-251300- /O.CON.KPHI.FR.Y.0005.251025T0600Z-251025T1300Z/ New Castle-Kent-Inland Sussex-Kent MD-Queen Annes-Talbot-Caroline- Middlesex-Western Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Cumberland-Atlantic-Southeastern Burlington-Berks-Western Chester-Eastern Chester-Eastern Montgomery-Lower Bucks- Including the cities of West Chester, Norristown, Georgetown, Dover, Kennett Square, Moorestown, Denton, Reading, Chestertown, Cherry Hill, Pennsville, Hammonton, Oxford, Lansdale, Honey Brook, Wilmington, Camden, Glassboro, Morrisville, Wharton State Forest, Millville, New Brunswick, Easton, Doylestown, Freehold, Jackson, Centreville, Trenton, and Mount Holly 616 PM EDT Fri Oct 24 2025 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY... * WHAT...Temperatures as low as 32 degrees will result in frost formation. * WHERE...Portions of central, northern, and southern Delaware, northeast Maryland, central, northern, and southern New Jersey, and east central and southeast Pennsylvania. * WHEN...From 2 AM to 9 AM EDT Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ AKL
156 WWUS71 KPHI 250819 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 419 AM EDT Sat Oct 25 2025 DEZ001>003-MDZ012-015-019-020-NJZ012-013-015>023-027-PAZ060-070-101- 102-104-106-251300- /O.CON.KPHI.FR.Y.0005.000000T0000Z-251025T1300Z/ New Castle-Kent-Inland Sussex-Kent MD-Queen Annes-Talbot-Caroline- Middlesex-Western Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Cumberland-Atlantic-Cape May- Southeastern Burlington-Berks-Delaware-Western Chester-Eastern Chester-Eastern Montgomery-Lower Bucks- Including the cities of Denton, Reading, Media, Glassboro, Jackson, Hammonton, Morrisville, Millville, Kennett Square, Camden, Pennsville, Honey Brook, Moorestown, West Chester, Lansdale, Oxford, Wilmington, Wharton State Forest, Chestertown, Trenton, Freehold, Mount Holly, Easton, Cape May Court House, Doylestown, New Brunswick, Norristown, Cherry Hill, Georgetown, Centreville, and Dover 419 AM EDT Sat Oct 25 2025 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Portions of central, northern, and southern Delaware, northeast Maryland, central, northern, and southern New Jersey, and east central and southeast Pennsylvania. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ PO
288 WWUS71 KPHI 251253 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 853 AM EDT Sat Oct 25 2025 DEZ001>003-MDZ012-015-019-020-NJZ012-013-015>023-027-PAZ060-070-101- 102-104-106-251400- /O.EXP.KPHI.FR.Y.0005.000000T0000Z-251025T1300Z/ New Castle-Kent-Inland Sussex-Kent MD-Queen Annes-Talbot-Caroline- Middlesex-Western Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Cumberland-Atlantic-Cape May- Southeastern Burlington-Berks-Delaware-Western Chester-Eastern Chester-Eastern Montgomery-Lower Bucks- Including the cities of Denton, Norristown, Doylestown, Freehold, New Brunswick, Oxford, Dover, West Chester, Lansdale, Wharton State Forest, Wilmington, Cape May Court House, Centreville, Cherry Hill, Hammonton, Reading, Glassboro, Trenton, Jackson, Honey Brook, Moorestown, Morrisville, Camden, Kennett Square, Georgetown, Media, Millville, Mount Holly, Easton, Chestertown, and Pennsville 853 AM EDT Sat Oct 25 2025 ...FROST ADVISORY WILL EXPIRE AT 9 AM EDT THIS MORNING... The threat has ended as temperatures rise. $$ DeSilva
Nearby
Frost Advisories in New Jersey, 2025Frost Advisories in Pennsylvania, 2025Frost Advisories in Maryland, 2025Every frost advisory in 2025
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.