Alert archive / New Jersey / Frost Advisories in 2018
Frost Advisory 4, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this frost advisory at Oct 21, 2018, 3:07 AM EDT for 4 states. It took effect at Oct 22, 2018, 12:00 AM EDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Oct 21, 2018, 3:07 AM EDT (07:07 UTC)
- In effect from
- Oct 22, 2018, 12:00 AM EDT
- Expired
- Oct 22, 2018, 9:00 AM EDT
- In force
- 9 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties New Castle County, DE, Cecil County, MD, Atlantic County, NJ, Burlington County, NJ, Camden 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, Lehigh County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 60 km from the middle of the area, began a volume at 07:08 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, 7.1 hours before the alert went out and 216 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
- 21 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 1242 m above ground
- 0-6 km bulk shear
- 90 kt
- 0-1 km storm-relative helicity
- -38 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
312 WWUS71 KPHI 210707 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 307 AM EDT Sun Oct 21 2018 DEZ001-MDZ008-NJZ012-013-015>022-027-PAZ060-061-070-071-101>106- 211915- /O.NEW.KPHI.FR.Y.0004.181022T0400Z-181022T1300Z/ New Castle-Cecil-Middlesex-Western Monmouth-Mercer-Salem- Gloucester-Camden-Northwestern Burlington-Ocean-Cumberland- Atlantic-Southeastern Burlington-Berks-Lehigh-Delaware- Philadelphia-Western Chester-Eastern Chester-Western Montgomery- Eastern Montgomery-Upper Bucks-Lower Bucks- Including the cities of Wilmington, Elkton, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Wharton State Forest, Reading, Allentown, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 307 AM EDT Sun Oct 21 2018 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT MONDAY... The National Weather Service in Mount Holly has issued a Frost Advisory, which is in effect from midnight tonight to 9 AM EDT Monday. * TEMPERATURES...In the lower to middle 30s. * TIMING...From midnight to 9 am Monday. * IMPACTS...Frost may damage sensitive vegetation. Take steps now to protect tender plants from the cold. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$ DEZ002>004-MDZ015-019-020-NJZ023-024-211500- /O.CON.KPHI.WI.Y.0009.181021T0900Z-181021T1500Z/ Kent-Inland Sussex-Delaware Beaches-Queen Annes-Talbot-Caroline- Cape May-Atlantic Coastal Cape May- Including the cities of Dover, Georgetown, Rehoboth Beach, Centreville, Easton, Denton, Cape May Court House, and Ocean City 307 AM EDT Sun Oct 21 2018 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT THIS MORNING... * WINDS...Northwest 15 to 25 mph with gusts up to 45 mph. * TIMING...Winds will increase through daybreak with peak winds expected from early to mid morning. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down, and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that very windy conditions are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. Light-weight outdoor objects such as patio furniture and garbage cans should be secured. && $$ CMS
4 follow-up statements
371 WWUS71 KPHI 211457 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 1057 AM EDT Sun Oct 21 2018 DEZ002>004-MDZ015-019-020-NJZ023-024-211600- /O.EXP.KPHI.WI.Y.0009.000000T0000Z-181021T1500Z/ Kent-Inland Sussex-Delaware Beaches-Queen Annes-Talbot-Caroline- Cape May-Atlantic Coastal Cape May- Including the cities of Dover, Georgetown, Rehoboth Beach, Centreville, Easton, Denton, Cape May Court House, and Ocean City 1057 AM EDT Sun Oct 21 2018 ...WIND ADVISORY WILL EXPIRE AT 11 AM EDT THIS MORNING... Winds will continue to gusts 35 to 45 mph at times today, but widespread advisory level are no longer expected. $$ DEZ001-MDZ008-NJZ012-013-015>022-027-PAZ060-061-070-071-101>106- 220300- /O.CON.KPHI.FR.Y.0004.181022T0400Z-181022T1300Z/ New Castle-Cecil-Middlesex-Western Monmouth-Mercer-Salem- Gloucester-Camden-Northwestern Burlington-Ocean-Cumberland- Atlantic-Southeastern Burlington-Berks-Lehigh-Delaware- Philadelphia-Western Chester-Eastern Chester-Western Montgomery- Eastern Montgomery-Upper Bucks-Lower Bucks- Including the cities of Wilmington, Elkton, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Wharton State Forest, Reading, Allentown, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 1057 AM EDT Sun Oct 21 2018 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT MONDAY... * TEMPERATURES...In the lower to middle 30s. * TIMING...From midnight to 9 am Monday. * IMPACTS...Frost may damage sensitive vegetation. Take steps now to protect tender plants from the cold. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$
728 WWUS71 KPHI 211918 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 318 PM EDT Sun Oct 21 2018 PAZ060-061-101-103-105-221000- /O.UPG.KPHI.FR.Y.0004.181022T0400Z-181022T1300Z/ /O.NEW.KPHI.FZ.W.0006.181022T0400Z-181022T1300Z/ Berks-Lehigh-Western Chester-Western Montgomery-Upper Bucks- Including the cities of Reading, Allentown, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 318 PM EDT Sun Oct 21 2018 ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT MONDAY... The National Weather Service in Mount Holly has issued a Freeze Warning, which is in effect from midnight tonight to 9 AM EDT Monday. The Frost Advisory is no longer in effect. * TEMPERATURES...Dropping to around freezing. * TIMING...From midnight to 9 am Monday. * IMPACTS...Frost and freeze conditions may damage sensitive vegetation. Take steps now to protect tender plants from the cold. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Warning means sub-freezing temperatures are imminent or highly likely. These conditions will kill crops and other sensitive vegetation. && $$ NJZ013-017>022-027-221000- /O.UPG.KPHI.FR.Y.0004.181022T0400Z-181022T1300Z/ /O.NEW.KPHI.FZ.W.0006.181022T0400Z-181022T1300Z/ Western Monmouth-Gloucester-Camden-Northwestern Burlington-Ocean- Cumberland-Atlantic-Southeastern Burlington- Including the cities of Freehold, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, and Wharton State Forest 318 PM EDT Sun Oct 21 2018 ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT MONDAY... The National Weather Service in Mount Holly has issued a Freeze Warning, which is in effect from midnight tonight to 9 AM EDT Monday. The Frost Advisory is no longer in effect. * TEMPERATURES....Dropping to around freezing. * TIMING...From midnight to 9 am Monday. * IMPACTS...Frost and freeze conditions may damage sensitive vegetation. Take steps now to protect tender plants from the cold. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Warning means sub-freezing temperatures are imminent or highly likely. These conditions will kill crops and other sensitive vegetation. && $$ DEZ001-MDZ008-NJZ012-015-016-PAZ070-071-102-104-106-221000- /O.CON.KPHI.FR.Y.0004.181022T0400Z-181022T1300Z/ New Castle-Cecil-Middlesex-Mercer-Salem-Delaware-Philadelphia- Eastern Chester-Eastern Montgomery-Lower Bucks- Including the cities of Wilmington, Elkton, New Brunswick, Trenton, Pennsville, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 318 PM EDT Sun Oct 21 2018 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT MONDAY... * TEMPERATURES....Dropping to the low to mid 30s. * TIMING...From midnight to 9 am Monday. * IMPACTS...Frost and freeze conditions may damage sensitive vegetation. Take steps now to protect tender plants from the cold. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$
807 WWUS71 KPHI 220734 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 334 AM EDT Mon Oct 22 2018 PAZ060-061-101-103-105-221300- /O.CAN.KPHI.FZ.W.0006.000000T0000Z-181022T1300Z/ /O.EXA.KPHI.FR.Y.0004.000000T0000Z-181022T1300Z/ Berks-Lehigh-Western Chester-Western Montgomery-Upper Bucks- Including the cities of Reading, Allentown, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 334 AM EDT Mon Oct 22 2018 ...FROST ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...FREEZE WARNING IS CANCELLED... The National Weather Service in Mount Holly has issued a Frost Advisory, which is in effect until 9:00 AM this morning. The Freeze Warning has been cancelled. * TEMPERATURES...In the middle and upper 30s. * IMPACTS...Frost may damage sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$ NJZ013-017>022-027-221300- /O.CON.KPHI.FZ.W.0006.000000T0000Z-181022T1300Z/ Western Monmouth-Gloucester-Camden-Northwestern Burlington-Ocean- Cumberland-Atlantic-Southeastern Burlington- Including the cities of Freehold, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, and Wharton State Forest 334 AM EDT Mon Oct 22 2018 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * TEMPERATURES...In the upper 20s to the middle 30s. * IMPACTS...Frost and freezing conditions may damage sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Warning means that sub-freezing temperatures are expected. These conditions will kill crops and other sensitive vegetation. && $$ DEZ001-MDZ008-NJZ012-015-016-PAZ070-071-102-104-106-221300- /O.CON.KPHI.FR.Y.0004.000000T0000Z-181022T1300Z/ New Castle-Cecil-Middlesex-Mercer-Salem-Delaware-Philadelphia- Eastern Chester-Eastern Montgomery-Lower Bucks- Including the cities of Wilmington, Elkton, New Brunswick, Trenton, Pennsville, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 334 AM EDT Mon Oct 22 2018 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * TEMPERATURES...In the middle and upper 30s. * IMPACTS...Frost may damage sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$ Iovino
952 WWUS71 KPHI 221256 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 856 AM EDT Mon Oct 22 2018 NJZ013-017>022-027-221400- /O.EXP.KPHI.FZ.W.0006.000000T0000Z-181022T1300Z/ Western Monmouth-Gloucester-Camden-Northwestern Burlington-Ocean- Cumberland-Atlantic-Southeastern Burlington- Including the cities of Freehold, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, and Wharton State Forest 856 AM EDT Mon Oct 22 2018 ...FREEZE WARNING WILL EXPIRE AT 9 AM EDT THIS MORNING... $$ DEZ001-MDZ008-NJZ012-015-016-PAZ070-071-102-104-106-221400- /O.EXP.KPHI.FR.Y.0004.000000T0000Z-181022T1300Z/ New Castle-Cecil-Middlesex-Mercer-Salem-Delaware-Philadelphia- Eastern Chester-Eastern Montgomery-Lower Bucks- Including the cities of Wilmington, Elkton, New Brunswick, Trenton, Pennsville, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 856 AM EDT Mon Oct 22 2018 ...FROST ADVISORY WILL EXPIRE AT 9 AM EDT THIS MORNING... $$ PAZ060-061-101-103-105-221400- /O.EXP.KPHI.FR.Y.0004.000000T0000Z-181022T1300Z/ Berks-Lehigh-Western Chester-Western Montgomery-Upper Bucks- Including the cities of Reading, Allentown, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 856 AM EDT Mon Oct 22 2018 ...FROST ADVISORY WILL EXPIRE AT 9 AM EDT THIS MORNING... $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 20, 10:31 PM EDT | Special Weather Statement | PHI | Bucks, Chester, Delaware, Lehigh, Montgomery, Philadelphia | 29 min |
| Oct 20, 10:58 PM EDT | Special Weather Statement | PHI | Philadelphia | 32 min |
| Oct 21, 3:18 PM EDT | Freeze Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery | 18 hr |
| Oct 20, 10:38 PM EDT | Special Weather Statement | PHI | Cumberland, Gloucester, Salem | 22 min |
| Oct 20, 10:40 PM EDT | Special Marine Warning | PHI | 65 min | |
| Oct 20, 11:16 PM EDT | Special Weather Statement | PHI | Cumberland | 59 min |
| Oct 20, 11:22 PM EDT | Special Marine Warning | PHI | 53 min | |
| Oct 20, 11:25 PM EDT | Special Weather Statement | PHI | Atlantic, Burlington, Cape May, Cumberland, Monmouth, Ocean | 35 min |
| Oct 20, 11:56 PM EDT | Special Weather Statement | PHI | Atlantic, Cape May, Monmouth, Ocean | 34 min |
| Oct 21, 12:09 AM EDT | Special Marine Warning | PHI | 66 min | |
| Oct 21, 5:52 PM EDT | Small Craft Advisory | PHI | 10 hr |
Nearby
Frost Advisories in New Jersey, 2018Frost Advisories in Pennsylvania, 2018Frost Advisories in Delaware, 2018Every frost advisory in 2018
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.