Alert archive / Pennsylvania / Freeze Warnings in 2020
Freeze Warning 9, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this freeze warning at May 12, 2020, 9:22 AM EDT for Carbon County, Monroe County, Northampton County, Pennsylvania; Sussex County, Warren County, New Jersey. It took effect at May 13, 2020, 12:00 AM EDT. It was in force for 8 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 12, 2020, 9:22 AM EDT (13:22 UTC)
- In effect from
- May 13, 2020, 12:00 AM EDT
- Expired
- May 13, 2020, 8:00 AM EDT
- In force
- 8 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Sussex County, NJ, Warren County, NJ, Carbon County, PA, Monroe County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 130 km from the middle of the area, began a volume at 13:22 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, 1.4 hours before the alert went out and 197 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
- 1121 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 88 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
905 WWUS71 KPHI 121322 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 922 AM EDT Tue May 12 2020 NJZ001-PAZ054-055-122030- /O.NEW.KPHI.FZ.W.0009.200513T0400Z-200513T1200Z/ Sussex-Carbon-Monroe- Including the cities of Newton, Jim Thorpe, and Stroudsburg 922 AM EDT Tue May 12 2020 ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...In New Jersey, Sussex. In Pennsylvania, Carbon and Monroe. * WHEN...From midnight tonight to 8 AM EDT Wednesday. * 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. && $$ Staarmann
4 follow-up statements
123 WWUS71 KPHI 121825 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 225 PM EDT Tue May 12 2020 NJZ007-PAZ062-130730- /O.EXB.KPHI.FZ.W.0009.200513T0400Z-200513T1300Z/ Warren-Northampton- Including the cities of Washington, Bethlehem, and Easton 225 PM EDT Tue May 12 2020 ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT WEDNESDAY... * WHAT...Sub-freezing temperatures of 30 to 32 degrees expected. * WHERE...In New Jersey, Warren. In Pennsylvania, Northampton. * WHEN...From midnight tonight to 9 AM EDT Wednesday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ NJZ001-PAZ054-055-130730- /O.EXT.KPHI.FZ.W.0009.200513T0400Z-200513T1300Z/ Sussex-Carbon-Monroe- Including the cities of Newton, Jim Thorpe, and Stroudsburg 225 PM EDT Tue May 12 2020 ...FREEZE WARNING NOW IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as 27 expected. * WHERE...In Pennsylvania, Carbon and Monroe. In New Jersey, Sussex. * WHEN...From midnight tonight to 9 AM EDT Wednesday. * 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. && $$ NJZ008>010-012-013-015>022-027-PAZ060-061-101>106-130730- /O.NEW.KPHI.FR.Y.0007.200513T0600Z-200513T1200Z/ Morris-Hunterdon-Somerset-Middlesex-Western Monmouth-Mercer-Salem- Gloucester-Camden-Northwestern Burlington-Ocean-Cumberland- Atlantic-Southeastern Burlington-Berks-Lehigh-Western Chester- Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks- Lower Bucks- Including the cities of Morristown, Flemington, Somerville, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Wharton State Forest, Reading, Allentown, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 225 PM EDT Tue May 12 2020 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM EDT WEDNESDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of central, northern, northwest and southern New Jersey and east central and southeast Pennsylvania. * WHEN...From 2 AM to 8 AM EDT Wednesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Staarmann
448 WWUS71 KPHI 130402 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 1202 AM EDT Wed May 13 2020 NJZ001-007-PAZ054-055-062-131300- /O.CON.KPHI.FZ.W.0009.000000T0000Z-200513T1300Z/ Sussex-Warren-Carbon-Monroe-Northampton- Including the cities of Newton, Washington, Jim Thorpe, Stroudsburg, Bethlehem, and Easton 1202 AM EDT Wed May 13 2020 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Sub-freezing temperatures as low as 28 to 32. * WHERE...In New Jersey, Warren and Sussex. In Pennsylvania, Carbon, Monroe and Northampton. * WHEN...Until 9 AM EDT this 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. && $$ NJZ008>010-012-013-015>022-027-PAZ060-061-101>106-131200- /O.CON.KPHI.FR.Y.0007.200513T0600Z-200513T1200Z/ Morris-Hunterdon-Somerset-Middlesex-Western Monmouth-Mercer-Salem- Gloucester-Camden-Northwestern Burlington-Ocean-Cumberland- Atlantic-Southeastern Burlington-Berks-Lehigh-Western Chester- Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks- Lower Bucks- Including the cities of Morristown, Flemington, Somerville, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Wharton State Forest, Reading, Allentown, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 1202 AM EDT Wed May 13 2020 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of central, northern, northwest and southern New Jersey and east central and southeast Pennsylvania. * WHEN...Until 8 AM EDT this morning. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
987 WWUS71 KPHI 130726 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 326 AM EDT Wed May 13 2020 NJZ001-007-PAZ054-055-062-131200- /O.EXT.KPHI.FZ.W.0009.000000T0000Z-200513T1200Z/ Sussex-Warren-Carbon-Monroe-Northampton- Including the cities of Newton, Washington, Jim Thorpe, Stroudsburg, Bethlehem, and Easton 326 AM EDT Wed May 13 2020 ...FREEZE WARNING NOW IN EFFECT UNTIL 8 AM EDT THIS MORNING... * WHAT...Sub-freezing temperatures as low as 30 degrees. * WHERE...The Pennsylvania counties of Carbon, Monroe and Northampton. The New Jersey counties of Sussex and Warren. * WHEN...Until 8:00 AM this morning. * IMPACTS...Frost and freezing conditions may damage crops and other sensitive vegetation. * ADDITIONAL INFORMATION...Frost is again possible early on Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ NJZ008>010-012-013-015>022-027-PAZ060-061-101>106-131200- /O.CON.KPHI.FR.Y.0007.000000T0000Z-200513T1200Z/ Morris-Hunterdon-Somerset-Middlesex-Western Monmouth-Mercer-Salem- Gloucester-Camden-Northwestern Burlington-Ocean-Cumberland- Atlantic-Southeastern Burlington-Berks-Lehigh-Western Chester- Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks- Lower Bucks- Including the cities of Morristown, Flemington, Somerville, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Wharton State Forest, Reading, Allentown, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 326 AM EDT Wed May 13 2020 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... * WHAT...A light wind and temperatures as low as 35 degrees will allow areas of frost to develop. * WHERE...Parts of southeastern Pennsylvania and New Jersey. * WHEN...Until 8:00 AM this morning. * IMPACTS...Frost may damage sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Iovino
833 WWUS71 KPHI 131153 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 753 AM EDT Wed May 13 2020 NJZ001-007-PAZ054-055-062-131300- /O.EXP.KPHI.FZ.W.0009.000000T0000Z-200513T1200Z/ Sussex-Warren-Carbon-Monroe-Northampton- Including the cities of Newton, Washington, Jim Thorpe, Stroudsburg, Bethlehem, and Easton 753 AM EDT Wed May 13 2020 ...FREEZE WARNING WILL EXPIRE AT 8 AM EDT THIS MORNING... Temperatures are warming quickly above freezing this morning. Therefore, the Freeze Warning will be allowed to expire. $$ NJZ008>010-012-013-015>022-027-PAZ060-061-101>106-131300- /O.EXP.KPHI.FR.Y.0007.000000T0000Z-200513T1200Z/ Morris-Hunterdon-Somerset-Middlesex-Western Monmouth-Mercer-Salem- Gloucester-Camden-Northwestern Burlington-Ocean-Cumberland- Atlantic-Southeastern Burlington-Berks-Lehigh-Western Chester- Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks- Lower Bucks- Including the cities of Morristown, Flemington, Somerville, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Wharton State Forest, Reading, Allentown, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 753 AM EDT Wed May 13 2020 ...FROST ADVISORY WILL EXPIRE AT 8 AM EDT THIS MORNING... Temperatures are warming quickly into the 40s this morning and no additional frost development is expected. Therefore, the Frost Advisory will be allowed to expire. $$ Staarmann
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 2:25 PM EDT | Frost Advisory | PHI | Berks, Bucks, Chester, Lehigh, Montgomery | 18 hr |
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.