Alert archive / New Jersey / High Wind Watches in 2007

High Wind Watch 1, NWS Philadelphia/Mount Holly

December 15, 20074 states

NWS Philadelphia/Mount Holly issued this high wind watch at Dec 15, 2007, 4:45 PM EST for 4 states. It took effect at Dec 16, 2007, 2:00 PM EST. It was in force for .

The area

The counties it named.

The facts

Issued
Dec 15, 2007, 4:45 PM EST (21:45 UTC)
In effect from
Dec 16, 2007, 2:00 PM EST
Expired
Dec 16, 2007, 4:20 AM EST
In force
Issued by
NWS Philadelphia/Mount Holly
All 31 counties

Kent County, DE, New Castle County, DE, Sussex County, DE, Caroline County, MD, Cecil County, MD, Kent County, MD, Queen Anne's County, MD, Talbot County, MD, Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Salem County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Berks County, PA, Carbon County, PA, Delaware County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 67 km from the middle of the area, began a volume at 21:50 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 9.8 hours before the alert went out and 219 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.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2007-12-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2007-12-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -21 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1193 m above ground
0-6 km bulk shear
73 kt
0-1 km storm-relative helicity
-21 m²/s²
0-3 km storm-relative helicity
156 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS71 KPHI 152145
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
445 PM EST SAT DEC 15 2007

...VERY STRONG WINDS TO POTENTIALLY IMPACT THE AREA MAINLY
SUNDAY AFTERNOON INTO MONDAY...

.AN AREA OF LOW PRESSURE MOVING NORTHEASTWARD FROM THE LOWER
MISSISSIPPI VALLEY WILL REACH EASTERN OHIO LATE TONIGHT, AS A
SECONDARY LOW PRESSURE SYSTEM BEGINS TO FORM OVER THE MIDDLE
ATLANTIC COASTAL ZONE. THIS LOW WILL INTENSIFY AS IT CROSSES OUR
REGION ON SUNDAY BEFORE MOVING TO COASTAL NEW ENGLAND SUNDAY
NIGHT. VERY STRONG WINDS WILL BE POSSIBLE, ESPECIALLY SUNDAY
AFTERNOON INTO MONDAY.

DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-
055-060>062-067>071-161030-
/O.NEW.KPHI.HW.A.0001.071216T1900Z-071217T1200Z/
NEW CASTLE-KENT DE-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-SUSSEX-WARREN-MORRIS-HUNTERDON-
SOMERSET-MIDDLESEX-WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-SALEM-
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-
ATLANTIC-CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-
COASTAL OCEAN-SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-
NORTHAMPTON-CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN...
REHOBOTH BEACH...ELKTON...CHESTERTOWN...CENTREVILLE...EASTON...
DENTON...NEWTON...WASHINGTON...MORRISTOWN...FLEMINGTON...
SOMERVILLE...NEW BRUNSWICK...FREEHOLD...SANDY HOOK...TRENTON...
PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN...
MOUNT HOLLY...JACKSON...MILLVILLE...HAMMONTON...
CAPE MAY COURT HOUSE...OCEAN CITY...ATLANTIC CITY...
LONG BEACH ISLAND...WHARTON STATE FOREST...JIM THORPE...
STROUDSBURG...READING...ALLENTOWN...BETHLEHEM...WEST CHESTER...
NORRISTOWN...DOYLESTOWN...MEDIA
445 PM EST SAT DEC 15 2007

...HIGH WIND WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY
MORNING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A HIGH
WIND WATCH, WHICH IS IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY MORNING.

AS AN INTENSIFYING STORM MOVES NORTHEAST OF OUR REGION SUNDAY,
WINDS WILL SHIFT FROM EASTERLY IN THE MORNING TO WESTERLY IN THE
AFTERNOON. BY THE EVENING HOURS, WIND GUSTS WILL INCREASE TO 25 TO
30 MPH. DURING SUNDAY NIGHT INTO MONDAY, SUSTAINED WINDS WILL
INCREASE ON AVERAGE TO BETWEEN 20 AND 25 MPH WITH GUSTS UP TO 
50 MPH. THERE IS THE POTENTIAL THAT SOME WIND GUSTS REACH 55 TO
60 MPH AT TIMES.

WINDS OF THIS MAGNITUDE CAN CAUSE DAMAGE, AND WILL MAKE DRIVING
VERY DIFFICULT PARTICULARLY FOR HIGH PROFILE VEHICLES. REMEMBER,
WINDS TEND TO BE HIGHER ON BRIDGES AND OTHER ELEVATED STRUCTURES.
IN AREAS THAT SEE ICING, THE STRONG WINDS WILL ADD ADDITIONAL
STRESS TO TREES AND POWER LINES. 

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
UPDATES REGARDING THIS POSSIBLE HIGH WIND EVENT.

$$

GORSE
1 follow-up statement
000 
WWUS71 KPHI 160920
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
420 AM EST SUN DEC 16 2007

...VERY STRONG WINDS WILL IMPACT THE AREA FROM THIS AFTERNOON
INTO MONDAY...

.AN AREA OF LOW PRESSURE LOCATED OVER SOUTHEAST VIRGINIA WILL MOVE
NORTHEASTWARD TODAY. THIS LOW WILL INTENSIFY AS IT CROSSES OUR
REGION BEFORE MOVING TO COASTAL NEW ENGLAND TONIGHT. VERY STRONG
WINDS WILL BE POSSIBLE...STARTING THIS AFTERNOON INTO MONDAY.

DEZ002>004-MDZ012-015-019-020-NJZ021>025-161730-
/O.UPG.KPHI.HW.A.0001.071216T1900Z-071217T1200Z/
/O.NEW.KPHI.WI.Y.0009.071216T1700Z-071217T1800Z/
KENT DE-INLAND SUSSEX-DELAWARE BEACHES-KENT MD-QUEEN ANNES-
TALBOT-CAROLINE-CUMBERLAND-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-
INCLUDING THE CITIES OF...DOVER...GEORGETOWN...REHOBOTH BEACH...
CHESTERTOWN...CENTREVILLE...EASTON...DENTON...MILLVILLE...
HAMMONTON...CAPE MAY COURT HOUSE...OCEAN CITY...ATLANTIC CITY
420 AM EST SUN DEC 16 2007

...WIND ADVISORY IN EFFECT FROM NOON TODAY TO 1 PM EST MONDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM NOON TODAY TO 1 PM EST MONDAY.
THE HIGH WIND WATCH IS NO LONGER IN EFFECT. 

AS AN INTENSIFYING STORM MOVES NORTHEAST OF OUR REGION TODAY...
WINDS WILL SHIFT FROM EASTERLY IN THE MORNING TO WESTERLY IN THE
AFTERNOON. BY THE EVENING HOURS... WIND GUSTS WILL REACH UP TO 50
MPH. TONIGHT INTO MONDAY... SUSTAINED WINDS WILL INCREASE ON
AVERAGE TO BETWEEN 20 AND 30 MPH WITH GUSTS UP TO 55 MPH AT TIMES.

WINDS OF THIS MAGNITUDE CAN CAUSE DAMAGE...AND WILL MAKE DRIVING
VERY DIFFICULT PARTICULARLY FOR HIGH PROFILE VEHICLES. REMEMBER...WINDS
TEND TO BE HIGHER ON BRIDGES AND OTHER ELEVATED STRUCTURES. 

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

$$

DEZ001-MDZ008-NJZ001-007>010-012>020-026-027-PAZ054-055-060>062-
067>071-161730-
/O.UPG.KPHI.HW.A.0001.071216T1900Z-071217T1200Z/
/O.NEW.KPHI.WI.Y.0009.071216T2100Z-071217T1800Z/
NEW CASTLE-CECIL-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-
MIDDLESEX-WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-SALEM-
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-OCEAN-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-
CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...NEWTON...
WASHINGTON...MORRISTOWN...FLEMINGTON...SOMERVILLE...
NEW BRUNSWICK...FREEHOLD...SANDY HOOK...TRENTON...PENNSVILLE...
GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...
JACKSON...LONG BEACH ISLAND...WHARTON STATE FOREST...JIM THORPE...
STROUDSBURG...READING...ALLENTOWN...BETHLEHEM...EASTON...
WEST CHESTER...NORRISTOWN...DOYLESTOWN...MEDIA
420 AM EST SUN DEC 16 2007

...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 1 PM EST
MONDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO 1 PM
EST MONDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. 

AS AN INTENSIFYING STORM MOVES NORTHEAST OF OUR REGION
SUNDAY...WINDS WILL SHIFT FROM EASTERLY IN THE MORNING TO WESTERLY
IN THE AFTERNOON. THIS EVENING...WIND GUSTS WILL REACH UP TO 50 MPH.
TONIGHT INTO MONDAY...SUSTAINED WINDS WILL INCREASE ON AVERAGE TO
BETWEEN 20 AND 30 MPH WITH GUSTS UP TO 55 MPH AT TIMES.

WINDS OF THIS MAGNITUDE CAN CAUSE DAMAGE...AND WILL MAKE DRIVING
VERY DIFFICULT PARTICULARLY FOR HIGH PROFILE VEHICLES.
REMEMBER...WINDS TEND TO BE HIGHER ON BRIDGES AND OTHER ELEVATED
STRUCTURES. IN AREAS THAT SEE ICING...THE STRONG WINDS WILL ADD
ADDITIONAL STRESS TO TREES AND POWER LINES.

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

$$

VM/RS

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 15, 3:40 PM ESTWinter Storm WarningPHIBerks, Carbon, Lehigh, Monroe, Northampton24 hr
Dec 15, 3:40 PM ESTWinter Weather AdvisoryPHIBerks, Lehigh, Northampton18 hr
Dec 15, 3:30 PM ESTCoastal Flood AdvisoryPHIAtlantic, Burlington, Cape May, Middlesex, Monmouth, Ocean24 hr

Nearby

High Wind Watches in New Jersey, 2007High Wind Watches in Pennsylvania, 2007High Wind Watches in Maryland, 2007Every high wind watch in 2007

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.