Alert archive / New Jersey / Frost Advisories in 2024
Frost Advisory 7, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this frost advisory at Apr 26, 2024, 1:59 PM EDT for 5 counties in Pennsylvania; 15 counties in New Jersey. It took effect at Apr 27, 2024, 3:00 AM EDT. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Apr 26, 2024, 1:59 PM EDT (17:59 UTC)
- In effect from
- Apr 27, 2024, 3:00 AM EDT
- Expired
- Apr 27, 2024, 9:00 AM EDT
- In force
- 6 hr
- Issued by
- NWS Philadelphia/Mount Holly
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, Lehigh County, PA, Montgomery County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 55 km from the middle of the area, began a volume at 18:04 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, 6.0 hours before the alert went out and 187 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
- 1447 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
696 WWUS71 KPHI 261759 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 159 PM EDT Fri Apr 26 2024 NJZ001-007>010-012-013-015>022-027-PAZ060>062-103-105-106-270800- /O.NEW.KPHI.FR.Y.0007.240427T0700Z-240427T1300Z/ Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex- Western Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Cumberland-Atlantic- Southeastern Burlington-Berks-Lehigh-Northampton- Western Montgomery-Upper Bucks-Lower Bucks- Including the cities of Newton, Washington, Morristown, Flemington, Somerville, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Wharton State Forest, Reading, Allentown, Bethlehem, Easton, Collegeville, Pottstown, Chalfont, Perkasie, Morrisville, and Doylestown 159 PM EDT Fri Apr 26 2024 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM EDT SATURDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Portions of New Jersey and eastern Pennsylvania. * WHEN...From 3 AM to 9 AM EDT Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Fitzsimmons
2 follow-up statements
702 WWUS71 KPHI 270738 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 338 AM EDT Sat Apr 27 2024 NJZ001-007>010-012-013-015>022-027-PAZ060>062-103-105-106-271300- /O.CON.KPHI.FR.Y.0007.000000T0000Z-240427T1300Z/ Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex- Western Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Cumberland-Atlantic- Southeastern Burlington-Berks-Lehigh-Northampton- Western Montgomery-Upper Bucks-Lower Bucks- Including the cities of Newton, Washington, Morristown, Flemington, Somerville, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Wharton State Forest, Reading, Allentown, Bethlehem, Easton, Collegeville, Pottstown, Chalfont, Perkasie, Morrisville, and Doylestown 338 AM EDT Sat Apr 27 2024 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Temperatures as low as 36 will result in frost formation. * WHERE...Portions of central, northern, northwest and southern New Jersey and east central and southeast Pennsylvania. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
714 WWUS71 KPHI 271322 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 922 AM EDT Sat Apr 27 2024 NJZ001-007>010-012-013-015>022-027-PAZ060>062-103-105-106-271430- /O.EXP.KPHI.FR.Y.0007.000000T0000Z-240427T1300Z/ Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex- Western Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Ocean-Cumberland-Atlantic- Southeastern Burlington-Berks-Lehigh-Northampton- Western Montgomery-Upper Bucks-Lower Bucks- Including the cities of Newton, Washington, Morristown, Flemington, Somerville, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Wharton State Forest, Reading, Allentown, Bethlehem, Easton, Collegeville, Pottstown, Chalfont, Perkasie, Morrisville, and Doylestown 922 AM EDT Sat Apr 27 2024 ...FROST ADVISORY HAS EXPIRED... Some patchy frost was observed around the area this morning, with temperatures in the low to mid 30s. Temperatures will continue to warm up this morning, with a cloudy and frost-free night ahead for tonight. $$
Nearby
Frost Advisories in New Jersey, 2024Frost Advisories in Pennsylvania, 2024Every frost advisory 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.