Alert archive / Pennsylvania / Frost Advisories in 2013
Frost Advisory 10, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this frost advisory at Sep 23, 2013, 2:55 PM EDT for Carbon County, Monroe County, Pennsylvania; Sussex County, New Jersey. It took effect at Sep 24, 2013, 2:00 AM EDT. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Sep 23, 2013, 2:55 PM EDT (18:55 UTC)
- In effect from
- Sep 24, 2013, 2:00 AM EDT
- Expired
- Sep 24, 2013, 8:00 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 18:52 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
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 6.9 hours before the alert went out and 189 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
- -2 J/kg
- Mixed-layer LCL
- 1141 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -24 m²/s²
- 0-3 km storm-relative helicity
- 19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
134 WWUS71 KPHI 231855 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 255 PM EDT MON SEP 23 2013 ...AREAS OF FROST LATE TONIGHT AND EARLY TUESDAY... .AN AREA OF HIGH PRESSURE FROM CANADA WILL CONTINUE TO SETTLE OVER THE REGION LATE TONIGHT. THIS SYSTEM WILL BE ACCOMPANIED BY CLEAR SKIES, DRY AIR, AND LIGHT WINDS WHICH WILL SET THE STAGE FOR FROST FORMATION. NJZ001-PAZ054-055-241200- /O.NEW.KPHI.FR.Y.0010.130924T0600Z-130924T1200Z/ SUSSEX-CARBON-MONROE- INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG 255 PM EDT MON SEP 23 2013 ...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. * TEMPERATURES...DROPPING TO THE MID 30S TOWARD DAYBREAK. * IMPACTS...POTENTIAL DAMAGE TO SENSITIVE PLANTS AND VEGETATION. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE CROPS AND VEGETATION SHOULD BE PROTECTED. POTTED PLANTS NORMALLY LEFT OUTSIDE SHOULD BE COVERED OR MOVED INDOORS. ISOLATED POCKETS OF FROST ARE ALSO POSSIBLE IN THE NORMALLY COLDER SPOTS ADJACENT TO THE ADVISORY AREA. && $$ MIKETTA
2 follow-up statements
395 WWUS71 KPHI 240811 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 411 AM EDT TUE SEP 24 2013 NJZ001-PAZ054-055-241200- /O.CON.KPHI.FR.Y.0010.000000T0000Z-130924T1200Z/ SUSSEX-CARBON-MONROE- INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG 411 AM EDT TUE SEP 24 2013 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... * TEMPERATURES...35 TO 40 DEGREES. * IMPACTS...POTENTIAL DAMAGE TO SENSITIVE PLANTS AND VEGETATION. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE CROPS AND VEGETATION SHOULD BE PROTECTED. POTTED PLANTS NORMALLY LEFT OUTSIDE SHOULD BE COVERED OR MOVED INDOORS. ISOLATED POCKETS OF FROST ARE ALSO POSSIBLE IN THE NORMALLY COLDER SPOTS ADJACENT TO THE ADVISORY AREA. && $$
244 WWUS71 KPHI 241224 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 824 AM EDT TUE SEP 24 2013 NJZ001-PAZ054-055-241330- /O.EXP.KPHI.FR.Y.0010.000000T0000Z-130924T1200Z/ SUSSEX-CARBON-MONROE- INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG 824 AM EDT TUE SEP 24 2013 ...FROST ADVISORY HAS EXPIRED... THE THREAT FOR FROST THIS MORNING HAS PASSED. $$
Nearby
Frost Advisories in Pennsylvania, 2013Frost Advisories in New Jersey, 2013Every frost advisory in 2013
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.