Alert archive / New Jersey / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 66, NWS Philadelphia/Mount Holly

June 12, 2007Gloucester County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 12, 2007, 3:09 PM EDT for Gloucester County, New Jersey. It was in force for 25 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
Jun 12, 2007, 3:09 PM EDT (19:09 UTC)
Expired
Jun 12, 2007, 3:34 PM EDT
In force
25 min
Issued by
NWS Philadelphia/Mount Holly
Area
Counties, with a storm outline in the text

County Gloucester County, NJ

The radar

The Philadelphia radar (KDIX), 75 km from the middle of the area, began a volume at 19:12 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 12, 12:55 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.2 hours before the alert went out and 80 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 2007-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 186 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 2007-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 square meters per square second.1939Sfc1 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
186 J/kg
Mixed-layer CIN
-92 J/kg
Mixed-layer LCL
1120 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
34 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 121910
SVRPHI
NJC015-121945-
/O.NEW.KPHI.SV.W.0066.070612T1909Z-070612T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
309 PM EDT TUE JUN 12 2007

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 345 PM EDT

* AT 308 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  GIBBSTOWN...OR JUST SOUTH OF PHILADELPHIA...AND MOVING
  SOUTH-SOUTHWEST AT 15 TO 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BECKETT BY 320 PM EDT...

LAT...LON 3984 7510 3988 7524 3985 7533 3978 7540
      3973 7537 3969 7532

$$

JRP
1 follow-up statement
000 
WWUS51 KPHI 121934
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
333 PM EDT TUE JUN 12 2007

NJC015-121943-
/O.CAN.KPHI.SV.W.0066.000000T0000Z-070612T1945Z/
GLOUCESTER NJ-
333 PM EDT TUE JUN 12 2007

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN GLOUCESTER COUNTY
IS CANCELLED...

THUNDERSTORMS WEAKENED OVER NORTHWESTERN GLOUCESTER COUNTY. HOWEVER, 
THEY WERE STILL CONTINUING OVER THE AREA JUST SOUTH OF BECKETT AS 
THEY MOVE SOUTHWARD AT 15 MILES AN HOUR.

LAT...LON 3984 7510 3988 7524 3985 7533 3978 7540
      3973 7537 3969 7532

$$

JRP

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 12:56 PM EDTSevere Thunderstorm WarningPHIWarren64 min
Jun 12, 1:08 PM EDTSevere Thunderstorm WarningPHIMercer, Middlesex, Monmouth67 min
Jun 12, 2:04 PM EDTSpecial Marine WarningPHI41 min
Jun 12, 2:44 PM EDTSpecial Marine WarningPHI46 min
Jun 12, 3:55 PM EDTSpecial Marine WarningPHI35 min
Jun 12, 4:08 PM EDTSevere Thunderstorm WarningPHIMercer37 min
Jun 12, 4:33 PM EDTCoastal Flood AdvisoryPHIAtlantic, Burlington, Cape May, Middlesex, Monmouth, Ocean7 hr
Jun 12, 7:06 PM EDTSevere Thunderstorm WarningPHIMorris, Somerset54 min
Jun 12, 7:48 PM EDTSevere Thunderstorm WarningPHIHunterdon57 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2007Every severe thunderstorm warning 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.