Alert archive / New Jersey / Wind Advisories in 2009

Wind Advisory 1, NWS Philadelphia/Mount Holly

February 11, 20094 states

NWS Philadelphia/Mount Holly issued this wind advisory at Feb 11, 2009, 2:50 PM EST for 4 states. It took effect at Feb 12, 2009, 12:00 AM EST. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Feb 11, 2009, 2:50 PM EST (19:50 UTC)
In effect from
Feb 12, 2009, 12:00 AM EST
Expired
Feb 12, 2009, 3:30 AM EST
In force
4 hr
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 19:55 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 94 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, Phillips Aaf/Abe, MD at 12:00Z on 2009-02-11Temperature 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, Phillips Aaf/Abe, MD at 12:00Z on 2009-02-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 square meters per square second.1939587897Sfc1 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
1111 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
182 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 111950
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
250 PM EST WED FEB 11 2009

DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-
055-060>062-067>071-121000-
/O.NEW.KPHI.WI.Y.0001.090212T0500Z-090213T0300Z/
NEW CASTLE-KENT-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...PHILADELPHIA
250 PM EST WED FEB 11 2009

...WIND ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 10 PM EST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 10 PM EST
THURSDAY. 

A STRONG AREA OF LOW PRESSURE WILL MOVE FROM THE PLAINS INTO
SOUTHERN CANADA TONIGHT. THE COLD FRONT ASSOCIATED WITH THIS LOW
WILL CROSS THE REGION LATE TONIGHT. AS THE FRONT MOVES THROUGH
THERE WILL BE SHOWERS AND POSSIBLY SOME THUNDERSTORMS.  

AS THE LOW MOVES AWAY FROM THE REGION ON THURSDAY, THE PRESSURE
GRADIENT WILL TIGHTEN BETWEEN THIS LOW AND BUILDING HIGH PRESSURE
FROM THE WEST. GUSTY WEST WIND WILL DEVELOP BEHIND THE FRONT. THE
WIND COULD GUST TO 35 MPH TONIGHT WITH EVEN HIGHER GUSTS POSSIBLE
IN ANY THUNDERSTORMS. A FURTHER INCREASE IN WIND SPEED IS EXPECTED 
DURING THE DAY ON THURSDAY GUSTS COULD REACH AS HIGH AS 45 MPH.
THE WIND WILL DIMINISH LATE THURSDAY NIGHT.

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. PLEASE TAKE THIS TIME TO
SECURE ANY OBJECTS, SUCH AS TRASH CANS, THAT CAN BECOME AIRBORNE
IN STRONG WINDS.  

$$

NIERENBERG
1 follow-up statement
000 
WWUS71 KPHI 120830
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
330 AM EST THU FEB 12 2009

DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-
055-060>062-067>071-130000-
/O.UPG.KPHI.WI.Y.0001.000000T0000Z-090213T0300Z/
/O.NEW.KPHI.HW.W.0001.090212T0830Z-090213T0000Z/
NEW CASTLE-KENT-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...PHILADELPHIA
330 AM EST THU FEB 12 2009

...HIGH WIND WARNING IN EFFECT UNTIL 7 PM EST THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL 7 PM EST THIS EVENING. THE WIND
ADVISORY IS NO LONGER IN EFFECT.

A VERY STRONG AND GUSTY WEST WIND WILL OCCUR TODAY IN THE WAKE OF
LAST NIGHTS COLD FRONT. SUSTAINED WINDS OF 20 TO 30 MILES AN HOUR
WILL GUST AS HIGH AS 55 TO 60 MILES AN HOUR TODAY. COASTAL AREAS NEAR
THE OCEAN AND BAYS, AS WELL AS AREAS OF HIGHER TERRAIN, WILL BE MOST
LIKELY TO GET THE STRONGEST WIND GUSTS. THE TIME OF STRONGEST WINDS
IS FROM LATE MORNING THROUGH THIS AFTERNOON. WINDS SHOULD BEGIN TO
DIMINISH DURING THIS EVENING, BUT IT WILL STILL BE WINDY TONIGHT.

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR
OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH, OR GUSTS OF 58
MPH OR MORE, CAN LEAD TO PROPERTY DAMAGE. WINDS THIS STRONG CAN MAKE
DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. MOTORISTS
ARE URGED TO USE EXTRA CAUTION. PLEASE TAKE THIS TIME TO SECURE ANY
LOOSE OUTDOOR OBJECTS...SUCH AS HOME DECORATIONS OR GARBAGE CANS...
THAT CAN BECOME AIRBORNE IN STRONG WINDS.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 11, 3:54 AM ESTGale WarningPHI50 hr
Feb 11, 3:01 PM ESTLow Water AdvisoryPHI48 hr

Nearby

Wind Advisories in New Jersey, 2009Wind Advisories in Pennsylvania, 2009Wind Advisories in Maryland, 2009Every wind 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.