Alert archive / Pennsylvania / Frost Advisories in 2017
Frost Advisory 1, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this frost advisory at May 3, 2017, 2:58 PM EDT for 4 counties in Pennsylvania; Sussex County, Warren County, New Jersey. It took effect at May 4, 2017, 3:00 AM EDT. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- May 3, 2017, 2:58 PM EDT (18:58 UTC)
- In effect from
- May 4, 2017, 3:00 AM EDT
- Expired
- May 4, 2017, 8:00 AM EDT
- In force
- 5 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Sussex County, NJ, Warren County, NJ, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 128 km from the middle of the area, began a volume at 18:56 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, 7.0 hours before the alert went out and 202 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
- 1729 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- -90 m²/s²
- 0-3 km storm-relative helicity
- -74 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
585 WWUS71 KPHI 031858 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 258 PM EDT Wed May 3 2017 NJZ001-007-PAZ054-055-061-062-040700- /O.NEW.KPHI.FR.Y.0001.170504T0700Z-170504T1200Z/ Sussex-Warren-Carbon-Monroe-Lehigh-Northampton- Including the cities of Newton, Washington, Jim Thorpe, Stroudsburg, Allentown, Bethlehem, and Easton 258 PM EDT Wed May 3 2017 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 8 AM EDT THURSDAY... The National Weather Service in Mount Holly has issued a Frost Advisory, which is in effect from 3 AM to 8 AM EDT Thursday. * LOCATION...southern Poconos and Lehigh Valley in northeastern Pennsylvania and northwestern New Jersey. * TEMPERATURES...mid 30s. * TIMING...Areas of frost will develop early Thursday morning. * IMPACTS...Frost could damage cold-sensitive outdoor vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that areas of frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$ JRK
3 follow-up statements
315 WWUS71 KPHI 040410 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 1210 AM EDT Thu May 4 2017 NJZ001-007-PAZ054-055-061-062-041200- /O.CON.KPHI.FR.Y.0001.170504T0700Z-170504T1200Z/ Sussex-Warren-Carbon-Monroe-Lehigh-Northampton- Including the cities of Newton, Washington, Jim Thorpe, Stroudsburg, Allentown, Bethlehem, and Easton 1210 AM EDT Thu May 4 2017 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... * LOCATION...southern Poconos and Lehigh Valley in northeastern Pennsylvania and northwestern New Jersey. * TEMPERATURES...Mid 30s. * TIMING...Areas of frost will develop early Thursday morning. * IMPACTS...Frost could damage cold-sensitive outdoor vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that areas of frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$
656 WWUS71 KPHI 040738 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 338 AM EDT Thu May 4 2017 NJZ001-007-PAZ054-055-061-062-041200- /O.CON.KPHI.FR.Y.0001.000000T0000Z-170504T1200Z/ Sussex-Warren-Carbon-Monroe-Lehigh-Northampton- Including the cities of Newton, Washington, Jim Thorpe, Stroudsburg, Allentown, Bethlehem, and Easton 338 AM EDT Thu May 4 2017 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... * LOCATIONS...Northwestern New Jersey, and the Poconos and the Lehigh Valley in Pennsylvania. * TEMPERATURES...Dropping into the middle 30s. * TIMING...Areas of frost will develop early this morning. * IMPACTS...The frost could damage sensitive outdoor vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that areas of frost are expected. Sensitive outdoor plants may be killed if left outdoors and unprotected. && $$ Iovino
570 WWUS71 KPHI 041148 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 748 AM EDT Thu May 4 2017 NJZ001-007-PAZ054-055-061-062-041300- /O.EXP.KPHI.FR.Y.0001.000000T0000Z-170504T1200Z/ Sussex-Warren-Carbon-Monroe-Lehigh-Northampton- Including the cities of Newton, Washington, Jim Thorpe, Stroudsburg, Allentown, Bethlehem, and Easton 748 AM EDT Thu May 4 2017 ...FROST ADVISORY WILL EXPIRE AT 8 AM EDT THIS MORNING... Temperatures across the advisory area are now in the 40s, so the frost advisory will be allowed to expire at 8 AM. $$ SFJ
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 3, 7:58 PM EDT | Small Craft Advisory | PHI | 4 days |
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.