Alert archive / Pennsylvania / Freeze Watches in 2012
Freeze Watch 2, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this freeze watch at Apr 11, 2012, 3:45 PM EDT for 4 counties in Pennsylvania; Sussex County, Warren County, New Jersey. It took effect at Apr 13, 2012, 1:00 AM EDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Apr 11, 2012, 3:45 PM EDT (19:45 UTC)
- In effect from
- Apr 13, 2012, 1:00 AM EDT
- Expired
- Apr 12, 2012, 3:31 AM EDT
- In force
- 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 19:47 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, 7.8 hours before the alert went out and 173 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
- 1081 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -32 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
859 WWUS71 KPHI 111946 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 345 PM EDT WED APR 11 2012 NJZ001-007-PAZ054-055-061-062-120800- /O.NEW.KPHI.FR.Y.0003.120412T0800Z-120412T1200Z/ /O.NEW.KPHI.FZ.A.0002.120413T0500Z-120413T1200Z/ SUSSEX-WARREN-CARBON-MONROE-LEHIGH-NORTHAMPTON- INCLUDING THE CITIES OF...NEWTON...WASHINGTON...JIM THORPE... STROUDSBURG...ALLENTOWN...BETHLEHEM...EASTON 345 PM EDT WED APR 11 2012 ...FROST ADVISORY IN EFFECT FROM 4 AM TO 8 AM EDT THURSDAY... ...FREEZE WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY MORNING... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM 4 AM TO 8 AM EDT THURSDAY. A FREEZE WATCH HAS ALSO BEEN ISSUED. THIS FREEZE WATCH IS IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY MORNING. * TEMPERATURES...LOW EARLY THURSDAY MORNING 32 TO 35 DEGREES WITH A LIGHT WIND. LOW EARLY FRIDAY MORNING AROUND FREEZING WITH LESS WIND PROBABLY PERMITTING A MORE WIDESPREAD FROST OR FREEZE FRIDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE. THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ PAZ060-067-120800- /O.NEW.KPHI.FR.Y.0003.120412T0800Z-120412T1200Z/ BERKS-CHESTER- INCLUDING THE CITIES OF...READING...WEST CHESTER 345 PM EDT WED APR 11 2012 ...FROST ADVISORY IN EFFECT FROM 4 AM TO 8 AM EDT THURSDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM 4 AM TO 8 AM EDT THURSDAY. * TEMPERATURES...LOW EARLY THURSDAY MORNING 32 TO 35 DEGREES WITH A LIGHT WIND. LOW EARLY FRIDAY MORNING JUST ABOVE FREEZING WITH LESS WIND PROBABLY PERMITTING A MORE WIDESPREAD FROST OPPORTUNITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$
1 follow-up statement
835 WWUS71 KPHI 120731 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 331 AM EDT THU APR 12 2012 NJZ001-007-PAZ054-055-061-062-122045- /O.CAN.KPHI.FR.Y.0003.120412T0800Z-120412T1200Z/ /O.UPG.KPHI.FZ.A.0002.120413T0500Z-120413T1200Z/ /O.NEW.KPHI.FZ.W.0007.120413T0600Z-120413T1200Z/ SUSSEX-WARREN-CARBON-MONROE-LEHIGH-NORTHAMPTON- INCLUDING THE CITIES OF...NEWTON...WASHINGTON...JIM THORPE... STROUDSBURG...ALLENTOWN...BETHLEHEM...EASTON 331 AM EDT THU APR 12 2012 ...FREEZE WARNING IN EFFECT FROM 2 AM TO 8 AM EDT FRIDAY... ...FROST ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM 2 AM TO 8 AM EDT FRIDAY. THE FROST ADVISORY HAS BEEN CANCELLED. THE FREEZE WATCH IS NO LONGER IN EFFECT. * TEMPERATURES...IN THE LOWER 30S. * TIMING...BELOW FREEZING TEMPERATURES ARE EXPECTED BETWEEN 200 AM AND 800 AM FRIDAY MORNING. * IMPACTS...FLOWERING FRUIT TREES AND OTHER SENSITIVE VEGETATION WILL SUFFER DAMAGE IF NOT PROTECTED...AS TEMPERATURES DROP TO JUST BELOW FREEZING EARLY FRIDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ PAZ060-067-120845- /O.CAN.KPHI.FR.Y.0003.120412T0800Z-120412T1200Z/ BERKS-CHESTER- INCLUDING THE CITIES OF...READING...WEST CHESTER 331 AM EDT THU APR 12 2012 ...FROST ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE FROST ADVISORY. $$ HAYES
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 11, 3:45 PM EDT | Frost Advisory | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 12 hr |
| Apr 10, 11:17 PM EDT | Small Craft Advisory | PHI | 4 hr | |
| Apr 11, 3:30 AM EDT | Small Craft Advisory | PHI | 34 hr |
Nearby
Freeze Watches in Pennsylvania, 2012Freeze Watches in New Jersey, 2012Every freeze watch in 2012
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.