Alert archive / New Jersey / Frost Advisories in 2013
Frost Advisory 4, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this frost advisory at Apr 26, 2013, 3:40 PM EDT for 6 counties in Pennsylvania; 12 counties in New Jersey. It took effect at Apr 27, 2013, 2:00 AM EDT. It was in force for 101 min.
The area
The counties it named.
The facts
- Issued
- Apr 26, 2013, 3:40 PM EDT (19:40 UTC)
- In effect from
- Apr 27, 2013, 2:00 AM EDT
- Expired
- Apr 27, 2013, 3:41 AM EDT
- In force
- 101 min
- Issued by
- NWS Philadelphia/Mount Holly
Counties Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Morris County, NJ, Ocean County, NJ, Salem County, NJ, Somerset County, NJ, Warren County, NJ, Berks County, PA, Bucks County, PA, Chester County, PA, Lehigh County, PA, Montgomery County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 58 km from the middle of the area, began a volume at 19:43 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, 7.7 hours before the alert went out and 113 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
- 1868 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- -19 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
167 WWUS71 KPHI 261940 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 340 PM EDT FRI APR 26 2013 NJZ007>010-PAZ060>062-101-103-105-271200- /O.NEW.KPHI.FR.Y.0004.130427T0600Z-130427T1200Z/ WARREN-MORRIS-HUNTERDON-SOMERSET-BERKS-LEHIGH-NORTHAMPTON- WESTERN CHESTER-WESTERN MONTGOMERY-UPPER BUCKS- INCLUDING THE CITIES OF...WASHINGTON...MORRISTOWN...FLEMINGTON... SOMERVILLE...READING...ALLENTOWN...BETHLEHEM...EASTON... HONEY BROOK...OXFORD...COLLEGEVILLE...POTTSTOWN...CHALFONT... PERKASIE 340 PM EDT FRI APR 26 2013 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM EDT SATURDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 8 AM EDT SATURDAY. * TEMPERATURES...DROPPING INTO THE LOWER TO MID 30S. * IMPACTS...TEMPERATURE SENSITIVE OUTDOOR VEGETATION WILL LIKELY BE DAMAGED IF PROTECTIVE MEASURES ARE NOT TAKEN OVERNIGHT. FROST IS MOST LIKELY TO OCCUR IN THE MORE SHELTERED AND LOW LYING AREAS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. THOSE WITH AGRICULTURAL OR GARDENING INTERESTS SHOULD PROTECT SENSITIVE PLANTS AND VEGETATION. POTTED PLANTS NORMALLY LEFT OUTSIDE SHOULD BE COVERED OR MOVED INDOORS. && $$ NJZ016>018-020>023-027-271200- /O.NEW.KPHI.FR.Y.0004.130427T0600Z-130427T1200Z/ SALEM-GLOUCESTER-CAMDEN-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY- SOUTHEASTERN BURLINGTON- INCLUDING THE CITIES OF...PENNSVILLE...GLASSBORO...CAMDEN... CHERRY HILL...JACKSON...MILLVILLE...HAMMONTON... CAPE MAY COURT HOUSE...WHARTON STATE FOREST 340 PM EDT FRI APR 26 2013 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM EDT SATURDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 8 AM EDT SATURDAY. * TEMPERATURES...DROPPING INTO THE LOWER TO MID 30S. * IMPACTS...TEMPERATURE SENSITIVE OUTDOOR VEGETATION WILL LIKELY BE DAMAGED IF PROTECTIVE MEASURES ARE NOT TAKEN OVERNIGHT. FROST IS MOST LIKELY TO OCCUR IN THE MORE SHELTERED AND LOW LYING AREAS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. THOSE WITH AGRICULTURAL OR GARDENING INTERESTS SHOULD PROTECT SENSITIVE PLANTS AND VEGETATION. POTTED PLANTS NORMALLY LEFT OUTSIDE SHOULD BE COVERED OR MOVED INDOORS. && $$
1 follow-up statement
504 WWUS71 KPHI 270741 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 341 AM EDT SAT APR 27 2013 NJZ007>010-016>018-020>023-027-PAZ060>062-101-103-105-270845- /O.CAN.KPHI.FR.Y.0004.000000T0000Z-130427T1200Z/ WARREN-MORRIS-HUNTERDON-SOMERSET-SALEM-GLOUCESTER-CAMDEN-OCEAN- CUMBERLAND-ATLANTIC-CAPE MAY-SOUTHEASTERN BURLINGTON-BERKS-LEHIGH- NORTHAMPTON-WESTERN CHESTER-WESTERN MONTGOMERY-UPPER BUCKS- INCLUDING THE CITIES OF...WASHINGTON...MORRISTOWN...FLEMINGTON... SOMERVILLE...PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL... JACKSON...MILLVILLE...HAMMONTON...CAPE MAY COURT HOUSE... WHARTON STATE FOREST...READING...ALLENTOWN...BETHLEHEM...EASTON... HONEY BROOK...OXFORD...COLLEGEVILLE...POTTSTOWN...CHALFONT... PERKASIE 341 AM EDT SAT APR 27 2013 ...FROST ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE FROST ADVISORY. ANY FROST EARLY THIS MORNING SHOULD BE RATHER PATCHY, THEREFORE THE FROST ADVISORY HAS BEEN CANCELLED. $$
Nearby
Frost Advisories in New Jersey, 2013Frost Advisories in Pennsylvania, 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.