Alert archive / New Jersey / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 142, NWS Philadelphia/Mount Holly

July 6, 2011Burlington County, Monmouth County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 6, 2011, 2:26 PM EDT for Burlington County, Monmouth County, Ocean County, New Jersey. It was in force for 46 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
Jul 6, 2011, 2:26 PM EDT (18:26 UTC)
Expired
Jul 6, 2011, 3:12 PM EDT
In force
46 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Burlington County, NJ, Monmouth County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 16 km from the middle of the area, began a volume at 18:28 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, 6.4 hours before the alert went out and 149 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 2011-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 721 joules per kilogram.LCLLFCEL10008507005003002001001 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 2011-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 square meters per square second.19395878Sfc1 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
721 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
1270 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
10 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.

221 
WUUS51 KPHI 061826
SVRPHI
NJC005-025-029-061930-
/O.NEW.KPHI.SV.W.0142.110706T1826Z-110706T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
226 PM EDT WED JUL 6 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN MONMOUTH COUNTY IN CENTRAL NEW JERSEY...
  CENTRAL BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
  NORTHWESTERN OCEAN COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 330 PM EDT

* AT 224 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED NEAR PEMBERTON...OR 19 MILES
  SOUTH OF TRENTON...AND MOVING NORTHEAST AT 15 MPH. A SECOND 
  SEVERE STORM WAS NEAR CREAM RIDGE IN MONMOUTH COUNTY. 

* THE FIRST SEVERE THUNDERSTORM WILL BE NEAR...
  PEMBERTON AROUND 235 PM EDT...
  WRIGHTSTOWN AND BROWNS MILLS AROUND 255 PM EDT...
  WOODRUFF...CREAM RIDGE...6 MILES SOUTHWEST OF SIX FLAGS THEME PARK
  AND 7 MILES WEST OF CASSVILLE AROUND 330 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

&&

LAT...LON 4021 7443 4001 7426 3988 7471 3997 7480
TIME...MOT...LOC 1825Z 228DEG 11KT 3995 7471

$$
 
TFG
2 follow-up statements
059 
WWUS51 KPHI 061854
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
254 PM EDT WED JUL 6 2011

NJC005-061903-
/O.CAN.KPHI.SV.W.0142.000000T0000Z-110706T1930Z/
BURLINGTON NJ-
254 PM EDT WED JUL 6 2011

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BURLINGTON COUNTY IS
CANCELLED...

THE THUNDERSTORM IN BURLINGTON COUNTY HAS WEAKENED AND NO LONGER POSES
A SEVERE THREAT.

LAT...LON 4000 7436 4005 7454 4018 7441 4001 7426
TIME...MOT...LOC 1853Z 277DEG 15KT 4011 7438

$$

NJC025-029-061930-
/O.CON.KPHI.SV.W.0142.000000T0000Z-110706T1930Z/
MONMOUTH NJ-OCEAN NJ-
254 PM EDT WED JUL 6 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR NORTHWESTERN OCEAN AND SOUTHWESTERN MONMOUTH COUNTIES...

AT 249 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS TO
60 MPH.  THIS STORM WAS LOCATED NEAR CASSVILLE...OR 16
MILES NORTHWEST OF TOMS RIVER...MOVING EAST AT 15 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  6 MILES NORTH OF LAKEHURST BY 305 PM EDT...
  CEDAR GLEN WEST AND 6 MILES NORTH OF LEISURE KNOLL BY 310 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

&&

LAT...LON 4000 7436 4005 7454 4018 7441 4001 7426
TIME...MOT...LOC 1853Z 277DEG 15KT 4011 7438

$$
 
TFG
144 
WWUS51 KPHI 061912
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
312 PM EDT WED JUL 6 2011

NJC025-029-061920-
/O.CAN.KPHI.SV.W.0142.000000T0000Z-110706T1930Z/
MONMOUTH NJ-OCEAN NJ-
312 PM EDT WED JUL 6 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN OCEAN AND
SOUTHWESTERN MONMOUTH COUNTIES IS CANCELLED...

THE SEVERE THUNDERSTORM HAS MOVED INTO EASTERN MONMOUTH COUNTY
WHERE ANOTHER WARNING REMAINS IN EFFECT. IN ADDITION TO THE 
SEVERE THREAT, THAT THUNDERSTORM HAS BEEN A
PROLIFIC CLOUD TO GROUND LIGHTNING PRODUCER. 

LAT...LON 4000 7436 4005 7454 4018 7441 4001 7426
TIME...MOT...LOC 1910Z 277DEG 15KT 4009 7429

$$

TFG

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 12:34 PM EDTSpecial Weather StatementPHIAtlantic56 min
Jul 6, 1:13 PM EDTSpecial Marine WarningPHI92 min
Jul 6, 1:23 PM EDTSevere Thunderstorm WarningPHICumberland, Salem52 min
Jul 6, 1:30 PM EDTSpecial Marine WarningPHI90 min
Jul 6, 1:47 PM EDTSevere Thunderstorm WarningPHIMercer, Middlesex, Monmouth58 min
Jul 6, 2:40 PM EDTSevere Thunderstorm WarningPHIMonmouth, Ocean62 min
Jul 6, 2:57 PM EDTSpecial Marine WarningPHI93 min
Jul 6, 3:23 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean67 min
Jul 6, 4:02 PM EDTAreal Flood AdvisoryPHIMercer, Middlesex, Monmouth118 min
Jul 6, 4:32 PM EDTSevere Thunderstorm WarningPHIBurlington, Monmouth, Ocean58 min
Jul 6, 5:00 PM EDTAreal Flood AdvisoryPHIBurlington4 hr
Jul 6, 5:18 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean42 min
Jul 6, 5:38 PM EDTSpecial Marine WarningPHI82 min
Jul 6, 6:14 PM EDTSpecial Weather StatementPHIOcean91 min
Jul 6, 7:03 PM EDTFlash Flood WarningPHIBurlington2 hr

Nearby

Severe Thunderstorm Warnings in New Jersey, 2011Every severe thunderstorm warning in 2011

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.