Alert archive / Pennsylvania / Frost Advisories in 2017
Frost Advisory 4, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this frost advisory at Oct 15, 2017, 3:22 PM EDT for 8 counties in Pennsylvania; 5 counties in New Jersey. It took effect at Oct 17, 2017, 2:00 AM EDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Oct 15, 2017, 3:22 PM EDT (19:22 UTC)
- In effect from
- Oct 17, 2017, 2:00 AM EDT
- Expired
- Oct 17, 2017, 9:00 AM EDT
- In force
- 7 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Hunterdon County, NJ, Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Berks County, PA, Bucks County, PA, Carbon County, PA, Chester County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 103 km from the middle of the area, began a volume at 19:28 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, 7.4 hours before the alert went out and 200 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
- 1 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 441 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 167 m²/s²
- 0-3 km storm-relative helicity
- 174 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
525 WWUS71 KPHI 151922 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 322 PM EDT Sun Oct 15 2017 ...The first frost advisory of the season has been issued for early Tuesday morning covering the region near and north of Interstate 80 in northwest New Jersey and a portion of northeast Pennsylvania... .Its been a very warm fall so far and while isolated frost has occurred in northeast Pennsylvania and far northwest New Jersey, a scenario favoring more extensive frost or freezing temperatures is setting up for early Tuesday morning. NJZ001-007-008-PAZ054-055-160730- /O.NEW.KPHI.FR.Y.0004.171017T0600Z-171017T1200Z/ Sussex-Warren-Morris-Carbon-Monroe- Including the cities of Newton, Washington, Morristown, Jim Thorpe, and Stroudsburg 322 PM EDT Sun Oct 15 2017 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM EDT TUESDAY... The National Weather Service in Mount Holly has issued a Frost Advisory, which is in effect from 2 AM to 8 AM EDT Tuesday. * LOW TEMPERATURES...Mostly in the lower to mid 30s. * TIMING...beginning in a few spots just after midnight late Monday night but becoming more widespread toward 5 AM Tuesday. * IMPACTS...Sensitive plants may be killed by frost or freezing temperatures of 30 to 32 degrees. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that a fairly widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$ Drag
5 follow-up statements
435 WWUS71 KPHI 160142 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 942 PM EDT Sun Oct 15 2017 ...The first frost advisory of the season has been issued for early Tuesday morning covering the region near and north of Interstate 80 in northwest New Jersey and a portion of northeast Pennsylvania... .Its been a very warm fall so far and while isolated frost has occurred in northeast Pennsylvania and far northwest New Jersey, a scenario favoring more extensive frost or freezing temperatures is setting up for early Tuesday morning. NJZ001-007-008-PAZ054-055-161500- /O.CON.KPHI.FR.Y.0004.171017T0600Z-171017T1200Z/ Sussex-Warren-Morris-Carbon-Monroe- Including the cities of Newton, Washington, Morristown, Jim Thorpe, and Stroudsburg 942 PM EDT Sun Oct 15 2017 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 AM EDT TUESDAY... * LOW TEMPERATURES...Mostly in the lower to mid 30s. * TIMING...beginning in a few spots just after midnight late Monday night but becoming more widespread toward 5 AM Tuesday. * IMPACTS...Sensitive plants may be killed by frost or freezing temperatures of 30 to 32 degrees. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that a fairly widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$
863 WWUS71 KPHI 160700 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 300 AM EDT Mon Oct 16 2017 NJZ009-010-PAZ061-062-105-161900- /O.EXB.KPHI.FR.Y.0004.171017T0800Z-171017T1300Z/ Hunterdon-Somerset-Lehigh-Northampton-Upper Bucks- Including the cities of Flemington, Somerville, Allentown, Bethlehem, Easton, Chalfont, and Perkasie 300 AM EDT Mon Oct 16 2017 ...FROST ADVISORY IN EFFECT FROM 4 AM TO 9 AM EDT TUESDAY... The National Weather Service in Mount Holly has issued a Frost Advisory, which is in effect from 4 AM to 9 AM EDT Tuesday. * TEMPERATURES...In the upper 30s. * LOW TEMPERATURES...Mostly in the lower to mid 30s. * TIMING...Late Monday night into Tuesday morning. * IMPACTS...Sensitive plants may be killed by frost. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that a fairly widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$ NJZ001-007-008-PAZ054-055-161900- /O.EXT.KPHI.FR.Y.0004.171017T0600Z-171017T1300Z/ Sussex-Warren-Morris-Carbon-Monroe- Including the cities of Newton, Washington, Morristown, Jim Thorpe, and Stroudsburg 300 AM EDT Mon Oct 16 2017 ...FROST ADVISORY NOW IN EFFECT FROM 2 AM TO 9 AM EDT TUESDAY... * LOW TEMPERATURES...Mostly in the lower to mid 30s. * TIMING...Late Monday night into Tuesday morning. * IMPACTS...Sensitive plants may be killed by frost. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that a fairly widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$
890 WWUS71 KPHI 160703 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 303 AM EDT Mon Oct 16 2017 NJZ001-007-008-PAZ054-055-162000- /O.CON.KPHI.FR.Y.0004.171017T0600Z-171017T1300Z/ Sussex-Warren-Morris-Carbon-Monroe- Including the cities of Newton, Washington, Morristown, Jim Thorpe, and Stroudsburg 303 AM EDT Mon Oct 16 2017 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT TUESDAY... * LOW TEMPERATURES...Mostly in the lower to mid 30s. * TIMING...Late Monday night into Tuesday morning. * IMPACTS...Sensitive plants may be killed by frost. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that a fairly widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$ NJZ009-010-PAZ061-062-105-162000- /O.CON.KPHI.FR.Y.0004.171017T0800Z-171017T1300Z/ Hunterdon-Somerset-Lehigh-Northampton-Upper Bucks- Including the cities of Flemington, Somerville, Allentown, Bethlehem, Easton, Chalfont, and Perkasie 303 AM EDT Mon Oct 16 2017 ...FROST ADVISORY REMAINS IN EFFECT FROM 4 AM TO 9 AM EDT TUESDAY... * LOW TEMPERATURES...Mostly in the lower to mid 30s. * TIMING...Late Monday night into Tuesday morning. * IMPACTS...Sensitive plants may be killed by frost. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that a fairly widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$
292 WWUS71 KPHI 161847 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 247 PM EDT Mon Oct 16 2017 ...The first frost advisories of the fall are in effect for portions of the eastern Pennsylvania and New Jersey countryside... .A seasonably cool airmass has finally arrived in the mid Atlantic states, briefly interrupting an unseasonably long stretch of very warm weather that has the first 15 days of October averaging 8 to 10 degrees above normal. Tonight should be the colder of the next two overnights in eastern Pennsylvania and northern New Jersey. For southeastern New Jersey, the colder of the two nights should occur late Tuesday night into early Wednesday morning. NJZ021-022-027-170915- /O.NEW.KPHI.FR.Y.0005.171018T0500Z-171018T1300Z/ Cumberland-Atlantic-Southeastern Burlington- Including the cities of Millville, Hammonton, and Wharton State Forest 247 PM EDT Mon Oct 16 2017 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM EDT WEDNESDAY... The National Weather Service in Mount Holly has issued a Frost Advisory, which is in effect from 1 AM to 9 AM EDT Wednesday. * Locations...Features the Pine Barren region of southeastern New Jersey. * LOW TEMPERATURES...Mostly in the lower to mid 30s. * TIMING...early Wednesday morning. * IMPACTS...Sensitive plants may be killed by frost or even freezing temperatures of around 32 degrees. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that a fairly widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$ PAZ060-101-103-170915- /O.EXA.KPHI.FR.Y.0004.171017T0800Z-171017T1300Z/ Berks-Western Chester-Western Montgomery- Including the cities of Reading, Honey Brook, Oxford, Collegeville, and Pottstown 247 PM EDT Mon Oct 16 2017 ...FROST ADVISORY IN EFFECT FROM 4 AM TO 9 AM EDT TUESDAY... The National Weather Service in Mount Holly has issued a Frost Advisory, which is in effect from 4 AM to 9 AM EDT Tuesday. * Locations...portions of southeastern Pennsylvania, from near Reading to Philadelphia's distant western suburbs. * LOW TEMPERATURES...Mostly in the lower to mid 30s. * TIMING...Late tonight into Tuesday morning. * IMPACTS...Sensitive plants may be killed by frost or even freezing temperatures of around 32 degrees. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that a fairly widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$ NJZ001-007-008-PAZ054-055-170915- /O.CON.KPHI.FR.Y.0004.171017T0600Z-171017T1300Z/ Sussex-Warren-Morris-Carbon-Monroe- Including the cities of Newton, Washington, Morristown, Jim Thorpe, and Stroudsburg 247 PM EDT Mon Oct 16 2017 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT TUESDAY... * Locations...northeast Pennsylvania and northwest New Jersey near and north of Interstate 80. * LOW TEMPERATURES...Mostly 30 to 35 degrees. * TIMING...Late tonight into Tuesday morning. * IMPACTS...Sensitive plants may be killed by frost or freezing temperatures of 30 to 32 degrees. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that a widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$ NJZ009-010-PAZ061-062-105-170915- /O.CON.KPHI.FR.Y.0004.171017T0800Z-171017T1300Z/ Hunterdon-Somerset-Lehigh-Northampton-Upper Bucks- Including the cities of Flemington, Somerville, Allentown, Bethlehem, Easton, Chalfont, and Perkasie 247 PM EDT Mon Oct 16 2017 ...FROST ADVISORY REMAINS IN EFFECT FROM 4 AM TO 9 AM EDT TUESDAY... * LOCATIONS...North central New Jersey into the Lehigh Valley of east central Pennsylvania. * LOW TEMPERATURES...Mostly in the lower to mid 30s. * TIMING...Late tonight into Tuesday morning. * IMPACTS...Sensitive plants may be killed by frost or freezing temperatures of 30 to 32 degrees. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that a fairly widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$
678 WWUS71 KPHI 170652 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 252 AM EDT Tue Oct 17 2017 NJZ001-007-008-PAZ054-055-171300- /O.CON.KPHI.FR.Y.0004.000000T0000Z-171017T1300Z/ Sussex-Warren-Morris-Carbon-Monroe- Including the cities of Newton, Washington, Morristown, Jim Thorpe, and Stroudsburg 252 AM EDT Tue Oct 17 2017 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * Locations...northeast Pennsylvania and northwest New Jersey near and north of Interstate 80. * LOW TEMPERATURES...Low to mid 30s. * TIMING...This morning. * IMPACTS...Sensitive plants may be killed by frost|. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that a widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$ NJZ009-010-PAZ060>062-101-103-105-171300- /O.CON.KPHI.FR.Y.0004.171017T0800Z-171017T1300Z/ Hunterdon-Somerset-Berks-Lehigh-Northampton-Western Chester- Western Montgomery-Upper Bucks- Including the cities of Flemington, Somerville, Reading, Allentown, Bethlehem, Easton, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 252 AM EDT Tue Oct 17 2017 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * LOCATIONS...North central New Jersey into the Lehigh Valley of east central Pennsylvania. * LOW TEMPERATURES...Low to mid 30s. * TIMING...This morning. * IMPACTS...Sensitive plants may be killed by frost. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that a fairly widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$ NJZ021-022-027-172100- /O.CON.KPHI.FR.Y.0005.171018T0500Z-171018T1300Z/ Cumberland-Atlantic-Southeastern Burlington- Including the cities of Millville, Hammonton, and Wharton State Forest 252 AM EDT Tue Oct 17 2017 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT WEDNESDAY... * Locations...Portions of the Pine Barren region of southeastern New Jersey. * LOW TEMPERATURES...Low to mid 30s. * TIMING...Early Wednesday morning. * IMPACTS...Sensitive plants may be killed by frost. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that a fairly widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 15, 3:33 AM EDT | Small Craft Advisory | PHI | 60 hr |
Nearby
Frost Advisories in Pennsylvania, 2017Frost Advisories in New Jersey, 2017Every frost advisory in 2017
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.