Alert archive / New Jersey / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 11, NWS Philadelphia/Mount Holly

February 17, 20064 counties in New Jersey; Bucks County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Feb 17, 2006, 10:25 AM EST for 4 counties in New Jersey; Bucks County, Pennsylvania. It was in force for 73 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Feb 17, 2006, 10:25 AM EST (15:25 UTC)
Expired
Feb 17, 2006, 11:38 AM EST
In force
73 min
Issued by
NWS Philadelphia/Mount Holly
Area
Counties, with a storm outline in the text

Counties Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Somerset County, NJ, Bucks County, PA

The radar

The Philadelphia radar (KDIX), 63 km from the middle of the area, began a volume at 15:27 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 12:00Z, 3.4 hours before the alert went out and 168 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, Brookhaven, NY at 12:00Z on 2006-02-17Temperature 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 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2006-02-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 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
1117 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
140 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 
WUUS51 KPHI 171528
SVRPHI
NJC019-021-023-035-PAC017-171700-
/O.NEW.KPHI.SV.W.0011.060217T1525Z-060217T1700Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1025 AM EST FRI FEB 17 2006

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MERCER COUNTY IN CENTRAL NEW JERSEY
  THIS INCLUDES THE CITY OF TRENTON
  MIDDLESEX COUNTY IN NORTHERN NEW JERSEY
  THIS INCLUDES THE CITY OF NEW BRUNSWICK
  SOMERSET COUNTY IN NORTHERN NEW JERSEY
  HUNTERDON COUNTY IN NORTHWEST NEW JERSEY
  BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA

* UNTIL NOON EST

* AT 1024 AM EST...DOPPLER RADAR INDICATED A LINE OF SEVERE
  THUNDERSTORMS. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 18 MILES NORTHEAST OF LEBANON TO 40 MILES SOUTHWEST OF
  DOYLESTOWN...OR ALONG A LINE EXTENDING FROM 25 MILES WEST OF
  CLIFTON TO 15 MILES NORTHWEST OF WILMINGTON...AND MOVING EAST AT
  50 MPH.  LAW ENFORCEMENT REPORTED NUMEROUS TREES DOWNED IN LEHIGH
  COUNTY PENNSYLVANIA AT 1020 AM. 

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WHITE
  HOUSE STATION...FLEMINGTON...STOCKTON...NEW HOPE...SOMERVILLE...
  RICHBORO...HOPEWELL...NEWTOWN...MANVILLE...PENNINGTON...
  MIDDLESEX...MILLSTONE...BOUND BROOK...LANGHORNE...WOODSIDE...ROCKY
  HILL...EWING...SOMERSET...LAWRENCEVILLE...KENDALL PARK...
  PRINCETON...SOCIETY HILL...NORTH BRUNSWICK...EDISON...WHITE
  HORSE...DAYTON...EAST BRUNSWICK...MERCERVILLE-HAMILTON SQUARE...
  SAYREVILLE...CLEARBROOK PARK AND JAMESBURG.

LAT...LON 4075 7476 4033 7529 4016 7499 4018 7460
      4047 7425

$$

JRP/TFG
2 follow-up statements
000 
WWUS51 KPHI 171617
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1115 AM EST FRI FEB 17 2006

NJC019-035-171625-
/O.CAN.KPHI.SV.W.0011.000000T0000Z-060217T1700Z/
HUNTERDON NJ-SOMERSET NJ-
1115 AM EST FRI FEB 17 2006

...THE SEVERE THUNDERSTORM WARNING FOR SOMERSET AND HUNTERDON
COUNTIES IS CANCELLED...

THE LINE OF SHOWERS AND ISOLATED THUNDERSTORMS THAT PRODUCED THE 
DAMAGING WINDS HAVE MOVED EAST OF THE REGION. SEVERAL TREES WERE
REPORTED KNOCKED DOWN IN HUNTERDON COUNTY AS THIS LINE MOVED 
THROUGH.



LAT...LON 4046 7427 4019 7460 4018 7465 4017 7498
      4033 7527 4046 7509 4039 7497 4033 7493
      4034 7485 4042 7478 4037 7473 4036 7462
      4047 7448 4047 7507 4047 7507 4047 7447
      4055 7453 4059 7447

$$

NJC021-023-PAC017-171700-
/O.CON.KPHI.SV.W.0011.000000T0000Z-060217T1700Z/
MERCER NJ-MIDDLESEX NJ-BUCKS PA-
1115 AM EST FRI FEB 17 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL NOON EST FOR
BUCKS...MIDDLESEX AND MERCER COUNTIES...

AT 1114 AM EST...LOCAL LAW ENFORCEMENT REPORTED A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 7 MILES
NORTHEAST OF METUCHEN TO LANGHORNE...OR ALONG A LINE EXTENDING FROM
ELIZABETH TO 11 MILES SOUTHWEST OF TRENTON. THESE STORMS WERE 
MOVING EAST AT 50 MPH. DOWNED TREES WERE REPORTED IN HUNTERDON 
COUNTY.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
YARDLEY...WOODSIDE...WOODBOURNE...VILLAGE SHIRES...RICHBORO...NEWTOWN
GRANT...NEWTOWN...NEW HOPE...NEW BRITAIN...DUBLIN...DOYLESTOWN...
CHURCHVILLE...SOUTH BOUND BROOK...SOCIETY HILL...PRINCETON NORTH...
PRINCETON...PENNINGTON...NEW BRUNSWICK...LAWRENCEVILLE...KENDALL
PARK...HOPEWELL...HIGHLAND PARK...HEATHCOTE AND EWING.

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND SMALL 
HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM 
WINDOWS

LAT...LON 4046 7427 4019 7460 4018 7465 4017 7498
      4033 7527 4046 7509 4039 7497 4033 7493
      4034 7485 4042 7478 4037 7473 4036 7462
      4047 7448 4047 7507 4047 7507 4047 7447
      4055 7453 4059 7447

$$

 /TFG/JJM
000 
WWUS51 KPHI 171638
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1137 AM EST FRI FEB 17 2006

NJC021-023-PAC017-171647-
/O.CAN.KPHI.SV.W.0011.000000T0000Z-060217T1700Z/
MERCER NJ-MIDDLESEX NJ-BUCKS PA-
1137 AM EST FRI FEB 17 2006

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN BUCKS...MIDDLESEX AND
MERCER COUNTIES IS CANCELLED...

THE LINE OF SHOWERS AND ISOLATED THUNDERSTORMS THAT PRODUCED LOCALLY 
DAMAGING WINDS HAS MOVED EAST OF THE REGION. SEVERAL TREES WERE 
REPORTED KNOCKED DOWN IN HUNTERDON COUNTY AS THIS LINE MOVED THROUGH.

LAT...LON 4046 7427 4019 7460 4018 7465 4017 7498
      4033 7527 4046 7509 4039 7497 4033 7493
      4034 7485 4042 7478 4037 7473 4036 7462
      4047 7448 4047 7507 4047 7507 4047 7447
      4055 7453 4059 7447

$$

/TFG

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 16, 9:41 PM ESTWind AdvisoryPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more20 hr
Feb 17, 9:05 AM ESTHigh Wind WarningPHIMorris, Sussex, Warren3 hr
Feb 17, 11:18 AM ESTSevere Thunderstorm WarningPHIBurlington, Monmouth, Ocean87 min
Feb 17, 11:30 AM ESTSpecial Marine WarningPHI90 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2006Severe Thunderstorm Warnings in Pennsylvania, 2006Every severe thunderstorm warning in 2006

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.