Alert archive / Pennsylvania / Freeze Warnings in 2020
Freeze Warning 8, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this freeze warning at May 11, 2020, 3:24 AM EDT for Carbon County, Monroe County, Pennsylvania; Sussex County, New Jersey. It took effect at May 12, 2020, 12:00 AM EDT. It was in force for 6 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
- May 11, 2020, 3:24 AM EDT (07:24 UTC)
- In effect from
- May 12, 2020, 12:00 AM EDT
- Expired
- May 12, 2020, 6:16 AM EDT
- In force
- 6 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Sussex County, NJ, Carbon County, PA, Monroe County, PA
The radar
The Philadelphia radar (KDIX), 140 km from the middle of the area, began a volume at 07:24 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 00:00Z, 7.4 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
- 1493 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 246 m²/s²
- 0-3 km storm-relative helicity
- 221 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
105 WWUS71 KPHI 110724 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 324 AM EDT Mon May 11 2020 NJZ001-PAZ054-055-112200- /O.NEW.KPHI.FZ.W.0008.200512T0400Z-200512T1300Z/ Sussex-Carbon-Monroe- Including the cities of Newton, Jim Thorpe, and Stroudsburg 324 AM EDT Mon May 11 2020 ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT TUESDAY... * WHAT...Sub-freezing temperatures between 28 and 32 degrees expected. * WHERE...In New Jersey, Sussex County. In Pennsylvania, Carbon and Monroe Counties. * WHEN...From midnight tonight to 9 AM EDT Tuesday. * 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. && $$ MDZ008-NJZ007>010-PAZ060>062-101>103-105-112200- /O.NEW.KPHI.FR.Y.0006.200512T0400Z-200512T1300Z/ Cecil-Warren-Morris-Hunterdon-Somerset-Berks-Lehigh-Northampton- Western Chester-Eastern Chester-Western Montgomery-Upper Bucks- Including the cities of Elkton, Washington, Morristown, Flemington, Somerville, Reading, Allentown, Bethlehem, Easton, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Chalfont, and Perkasie 324 AM EDT Mon May 11 2020 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT TUESDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Portions of northern and northwest New Jersey, east central and southeast Pennsylvania and northeast Maryland. * WHEN...From midnight tonight to 9 AM EDT Tuesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
3 follow-up statements
841 WWUS71 KPHI 111953 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 353 PM EDT Mon May 11 2020 NJZ001-PAZ054-055-121000- /O.CON.KPHI.FZ.W.0008.200512T0400Z-200512T1300Z/ Sussex-Carbon-Monroe- Including the cities of Newton, Jim Thorpe, and Stroudsburg 353 PM EDT Mon May 11 2020 ...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT TUESDAY... * WHAT...Sub-freezing temperatures between 28 and 32 degrees expected. * WHERE...In New Jersey, Sussex County. In Pennsylvania, Carbon and Monroe Counties. * WHEN...From midnight tonight to 9 AM EDT Tuesday. * 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. && $$ NJZ020>022-027-121000- /O.EXA.KPHI.FR.Y.0006.200512T0400Z-200512T1300Z/ Ocean-Cumberland-Atlantic-Southeastern Burlington- Including the cities of Jackson, Millville, Hammonton, and Wharton State Forest 353 PM EDT Mon May 11 2020 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT TUESDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Interior portions of southern New Jersey. * WHEN...From midnight tonight to 9 AM EDT Tuesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MDZ008-NJZ007>010-PAZ060>062-101>103-105-121000- /O.CON.KPHI.FR.Y.0006.200512T0400Z-200512T1300Z/ Cecil-Warren-Morris-Hunterdon-Somerset-Berks-Lehigh-Northampton- Western Chester-Eastern Chester-Western Montgomery-Upper Bucks- Including the cities of Elkton, Washington, Morristown, Flemington, Somerville, Reading, Allentown, Bethlehem, Easton, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Chalfont, and Perkasie 353 PM EDT Mon May 11 2020 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT TUESDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Portions of northern and northwest New Jersey, east central and southeast Pennsylvania and northeast Maryland. * WHEN...From midnight tonight to 9 AM EDT Tuesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
916 WWUS71 KPHI 120734 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 334 AM EDT Tue May 12 2020 NJZ020>022-027-120845- /O.CAN.KPHI.FR.Y.0006.000000T0000Z-200512T1300Z/ Ocean-Cumberland-Atlantic-Southeastern Burlington- Including the cities of Jackson, Millville, Hammonton, and Wharton State Forest 334 AM EDT Tue May 12 2020 ...FROST ADVISORY IS CANCELLED... Frost is no longer expected in interior sections of southern New Jersey early this morning. As a result, the Frost Advisory has been cancelled. $$ NJZ001-PAZ054-055-121200- /O.EXT.KPHI.FZ.W.0008.000000T0000Z-200512T1200Z/ Sussex-Carbon-Monroe- Including the cities of Newton, Jim Thorpe, and Stroudsburg 334 AM EDT Tue May 12 2020 ...FREEZE WARNING NOW IN EFFECT UNTIL 8 AM EDT THIS MORNING... * WHAT...Sub-freezing temperatures between 30 and 32 degrees are expected. * WHERE...The Pennsylvania counties of Carbon and Monroe, and Sussex County in New Jersey. * WHEN...Until 8:00 AM this morning. * IMPACTS...Frost and freeze conditions may damage crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MDZ008-NJZ007>010-PAZ060>062-101>103-105-121200- /O.EXT.KPHI.FR.Y.0006.000000T0000Z-200512T1200Z/ Cecil-Warren-Morris-Hunterdon-Somerset-Berks-Lehigh-Northampton- Western Chester-Eastern Chester-Western Montgomery-Upper Bucks- Including the cities of Elkton, Washington, Morristown, Flemington, Somerville, Reading, Allentown, Bethlehem, Easton, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Chalfont, and Perkasie 334 AM EDT Tue May 12 2020 ...FROST ADVISORY NOW IN EFFECT UNTIL 8 AM EDT THIS MORNING... * WHAT...Temperatures as low as 34 to 36 degrees may allow frost to develop. * WHERE...Parts of northeastern Maryland, southeastern Pennsylvania, and northern New Jersey. * WHEN...Until 8:00 AM this morning. * IMPACTS...Frost could damage sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Iovino
890 WWUS71 KPHI 121016 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 616 AM EDT Tue May 12 2020 NJZ001-PAZ054-055-121130- /O.CAN.KPHI.FZ.W.0008.000000T0000Z-200512T1200Z/ Sussex-Carbon-Monroe- Including the cities of Newton, Jim Thorpe, and Stroudsburg 616 AM EDT Tue May 12 2020 ...FREEZE WARNING IS CANCELLED... Temperatures are no longer expected to fall below freezing this morning. As a result, the Freeze Warning has been cancelled. Very cold temperatures are forecast for early Wednesday morning with another potential for frost or freezing temperatures at that time. $$ MDZ008-NJZ007>010-PAZ060>062-101>103-105-121130- /O.CAN.KPHI.FR.Y.0006.000000T0000Z-200512T1200Z/ Cecil-Warren-Morris-Hunterdon-Somerset-Berks-Lehigh-Northampton- Western Chester-Eastern Chester-Western Montgomery-Upper Bucks- Including the cities of Elkton, Washington, Morristown, Flemington, Somerville, Reading, Allentown, Bethlehem, Easton, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Chalfont, and Perkasie 616 AM EDT Tue May 12 2020 ...FROST ADVISORY IS CANCELLED... Frost is no longer expected this morning. As a result, the Frost Advisory has been cancelled. Very cold temperatures are forecast for early Wednesday morning with another potential for frost at that time. $$ Iovino
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 3:24 AM EDT | Frost Advisory | PHI | Berks, Bucks, Chester, Lehigh, Montgomery, Northampton | 27 hr |
| May 11, 2:25 PM EDT | Special Weather Statement | PHI | Lehigh | 35 min |
| May 11, 2:28 PM EDT | Special Weather Statement | PHI | Bucks | 32 min |
| May 11, 3:34 AM EDT | Small Craft Advisory | PHI | 38 hr | |
| May 11, 12:22 PM EDT | Special Weather Statement | PHI | Middlesex | 23 min |
| May 11, 12:35 PM EDT | Special Weather Statement | PHI | Monmouth | 25 min |
| May 11, 12:44 PM EDT | Special Weather Statement | PHI | Monmouth | 16 min |
| May 11, 1:00 PM EDT | Special Weather Statement | PHI | Monmouth | 45 min |
Nearby
Freeze Warnings in Pennsylvania, 2020Freeze Warnings in New Jersey, 2020Every freeze warning 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.