Alert archive / Pennsylvania / Frost Advisories in 2009
Frost Advisory 9, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this frost advisory at Oct 13, 2009, 4:30 AM EDT for 4 counties in Pennsylvania; 4 counties in New Jersey. It took effect at Oct 14, 2009, 1:00 AM EDT. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Oct 13, 2009, 4:30 AM EDT (08:30 UTC)
- In effect from
- Oct 14, 2009, 1:00 AM EDT
- Expired
- Oct 14, 2009, 4:15 AM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Hunterdon County, NJ, Morris County, NJ, Somerset County, NJ, Warren County, NJ, Berks County, PA, Carbon County, PA, Lehigh County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 107 km from the middle of the area, began a volume at 08:29 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 00:00Z, 8.5 hours before the alert went out and 198 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
- 1256 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS71 KPHI 130830 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 430 AM EDT TUE OCT 13 2009 ...COLDER AIR MOVING INTO THE REGION... NJZ007>010-PAZ054-060>062-067>069-132000- /O.NEW.KPHI.FR.Y.0009.091014T0500Z-091014T1300Z/ WARREN-MORRIS-HUNTERDON-SOMERSET-CARBON-BERKS-LEHIGH-NORTHAMPTON- CHESTER-MONTGOMERY-BUCKS- INCLUDING THE CITIES OF...WASHINGTON...MORRISTOWN...FLEMINGTON... SOMERVILLE...JIM THORPE...READING...ALLENTOWN...BETHLEHEM... EASTON...WEST CHESTER...NORRISTOWN...DOYLESTOWN 430 AM EDT TUE OCT 13 2009 ...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. SKIES WILL BEGIN TO CLEAR OUT THIS EVENING AND A FRESH NORTHERLY WIND WILL SWEEP DOWN THROUGH THE REGION. THE WINDS WILL DIMINISH LATE TONIGHT AND WITH THE DRY AIR IN PLACE...TEMPERATURES WILL FALL INTO THE MID AND UPPER 30S. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ EBERWINE
3 follow-up statements
000 WWUS71 KPHI 131918 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 318 PM EDT TUE OCT 13 2009 NJZ007>010-PAZ054-060>062-067>069-140900- /O.CON.KPHI.FR.Y.0009.091014T0500Z-091014T1300Z/ WARREN-MORRIS-HUNTERDON-SOMERSET-CARBON-BERKS-LEHIGH-NORTHAMPTON- CHESTER-MONTGOMERY-BUCKS- INCLUDING THE CITIES OF...WASHINGTON...MORRISTOWN...FLEMINGTON... SOMERVILLE...JIM THORPE...READING...ALLENTOWN...BETHLEHEM... EASTON...WEST CHESTER...NORRISTOWN...DOYLESTOWN 318 PM EDT TUE OCT 13 2009 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT WEDNESDAY... A FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT WEDNESDAY. THE CLOUDS ARE EXPECTED TO THIN OUT THROUGH THIS EVENING, AND THE WINDS WILL ALSO DIMINISH THROUGH THE NIGHT. THIS, COMBINED WITH DRY AIR IN PLACE, WILL ALLOW TEMPERATURES TO DROP INTO THE MID AND UPPER 30S. AS A RESULT, AREAS OF FROST WILL FORM LATE TONIGHT AND EARLY WEDNESDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY IS ISSUED WHEN AREAS OF FROST IS EXPECTED TO DEVELOP DURING THE GROWING SEASON. THOSE WITH AGRICULTURAL OR GARDENING INTERESTS IN THE ADVISORY AREA SHOULD HARVEST OR PROTECT SENSITIVE PLANTS AND CROPS. POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD BE COVERED, OR IF POSSIBLE BROUGHT INSIDE. && $$ GORSE
000 WWUS71 KPHI 140121 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 921 PM EDT TUE OCT 13 2009 NJZ007>010-PAZ054-060>062-067>069-140900- /O.CON.KPHI.FR.Y.0009.091014T0500Z-091014T1300Z/ WARREN-MORRIS-HUNTERDON-SOMERSET-CARBON-BERKS-LEHIGH-NORTHAMPTON- CHESTER-MONTGOMERY-BUCKS- INCLUDING THE CITIES OF...WASHINGTON...MORRISTOWN...FLEMINGTON... SOMERVILLE...JIM THORPE...READING...ALLENTOWN...BETHLEHEM... EASTON...WEST CHESTER...NORRISTOWN...DOYLESTOWN 921 PM EDT TUE OCT 13 2009 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT WEDNESDAY... A FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT WEDNESDAY. HIGH PRESSURE WILL GRADUALLY BUILD TOWARD OUR AREA OVERNIGHT AND WEDNESDAY WITH COLDER, MUCH DRIER AIR SETTLING IN AND A DIMINISHING WIND. HOWEVER, AT LEAST SOME WIND LINGERING THROUGH THE NIGHT ALONG WITH SOME CLOUDS MAY KEEP THE FROST FORMATION FROM BEING AS WIDESPREAD. TEMPERATURES THOUGH ARE FORECAST TO DROP INTO THE MID AND UPPER 30S, WHICH CAN STILL RESULT IN AREAS OF FROST EARLY WEDNESDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY IS ISSUED WHEN AREAS OF FROST IS EXPECTED TO DEVELOP DURING THE GROWING SEASON. THOSE WITH AGRICULTURAL OR GARDENING INTERESTS IN THE ADVISORY AREA SHOULD HARVEST OR PROTECT SENSITIVE PLANTS AND CROPS. POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD BE COVERED, OR IF POSSIBLE BROUGHT INSIDE. && $$ GORSE
000 WWUS71 KPHI 140815 NPWPHI URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 415 AM EDT WED OCT 14 2009 NJZ007>010-PAZ054-060>062-067>069-140915- /O.CAN.KPHI.FR.Y.0009.000000T0000Z-091014T1300Z/ WARREN-MORRIS-HUNTERDON-SOMERSET-CARBON-BERKS-LEHIGH-NORTHAMPTON- CHESTER-MONTGOMERY-BUCKS- INCLUDING THE CITIES OF...WASHINGTON...MORRISTOWN...FLEMINGTON... SOMERVILLE...JIM THORPE...READING...ALLENTOWN...BETHLEHEM... EASTON...WEST CHESTER...NORRISTOWN...DOYLESTOWN 415 AM EDT WED OCT 14 2009 ...FROST ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE FROST ADVISORY. SOME CLOUDS AND SOME WIND WILL PREVENT WIDESPREAD FROST FORMATION EARLY THIS MORNING, BUT WITH SOME TEMPERATURES IN THE LOWER AND MID 30S, A FEW SHELTERED LOCATIONS MAY GET PATCHY FROST. $$ DEZ003-004-NJZ012>014-020-022>027-142000- /O.NEW.KPHI.HW.A.0001.091015T1800Z-091016T1300Z/ INLAND SUSSEX-DELAWARE BEACHES-MIDDLESEX-WESTERN MONMOUTH- EASTERN MONMOUTH-OCEAN-ATLANTIC-CAPE MAY- ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN- SOUTHEASTERN BURLINGTON- INCLUDING THE CITIES OF...GEORGETOWN...REHOBOTH BEACH... NEW BRUNSWICK...FREEHOLD...SANDY HOOK...JACKSON...HAMMONTON... CAPE MAY COURT HOUSE...OCEAN CITY...ATLANTIC CITY... LONG BEACH ISLAND...WHARTON STATE FOREST 415 AM EDT WED OCT 14 2009 ...HIGH WIND WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A HIGH WIND WATCH...WHICH IS IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING. A DEVELOPING COASTAL STORM WILL CAUSE WINDS TO INCREASE THURSDAY. NORTHEAST WINDS LATER THURSDAY AFTERNOON AND THURSDAY NIGHT ARE FORECAST TO INCREASE TO 25 TO 35 MILES AN HOUR, WITH GUSTS OF 45 TO 55 MILES AN HOUR. A FEW GUSTS MAY REACH 60 MILES AN HOUR. STRONG NORTHEAST WINDS MAY CAUSE SCATTERED DOWNED TREES AND LIMBS, CAUSING A DANGER TO RESIDENTS AND PROPERTY. IF ANY TREES OR LIMBS FALL, SCATTERED POWER OUTAGES WOULD ALSO RESULT. THE STRONGEST WINDS ARE MORE LIKELY TO OCCUR RIGHT ALONG THE COAST AND BAYS. THE WINDS ARE EXPECTED TO DIMINISH DURING FRIDAY AS THE STORM RECEDES TO THE NORTHEAST. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF 58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$ DEZ002-NJZ021-142000- /O.NEW.KPHI.HW.A.0001.091015T2100Z-091016T1200Z/ KENT-CUMBERLAND- INCLUDING THE CITIES OF...DOVER...MILLVILLE 415 AM EDT WED OCT 14 2009 ...HIGH WIND WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A HIGH WIND WATCH...WHICH IS IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING. A DEVELOPING COASTAL STORM WILL CAUSE WINDS TO INCREASE THURSDAY. NORTHEAST WINDS LATER THURSDAY AFTERNOON AND THURSDAY NIGHT ARE FORECAST TO INCREASE TO 25 TO 35 MILES AN HOUR, WITH GUSTS OF 40 TO 50 MILES AN HOUR. A FEW GUSTS MAY REACH BETWEEN 55 AND 60 MILES AN HOUR. STRONG NORTHEAST WINDS MAY CAUSE SCATTERED DOWNED TREES AND LIMBS, CAUSING A DANGER TO RESIDENTS AND PROPERTY. IF ANY TREES OR LIMBS FALL, SCATTERED POWER OUTAGES WOULD ALSO RESULT. THE STRONGEST WINDS ARE MORE LIKELY TO OCCUR RIGHT ALONG THE COAST AND BAYS. THE WINDS ARE EXPECTED TO DIMINISH DURING FRIDAY AS THE STORM RECEDES TO THE NORTHEAST. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF 58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
Nearby
Frost Advisories in Pennsylvania, 2009Frost Advisories in New Jersey, 2009Every frost advisory in 2009
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.