Alert archive / New Jersey / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 94, NWS Philadelphia/Mount Holly

June 27, 2007Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 27, 2007, 2:58 PM EDT for Sussex County, New Jersey. It was in force for 77 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 27, 2007, 2:58 PM EDT (18:58 UTC)
Expired
Jun 27, 2007, 4:15 PM EDT
In force
77 min
Issued by
NWS Philadelphia/Mount Holly
Area
Counties, with a storm outline in the text

County Sussex County, NJ

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 27, 12:58 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 7.0 hours before the alert went out and 145 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 2007-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 357 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, Brookhaven, NY at 12:00Z on 2007-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -24 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
357 J/kg
Mixed-layer CIN
-152 J/kg
Mixed-layer LCL
1418 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-24 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 271900
SVRPHI
NJC037-272015-
/O.NEW.KPHI.SV.W.0094.070627T1858Z-070627T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
258 PM EDT WED JUN 27 2007

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN SUSSEX COUNTY IN NORTHWEST NEW JERSEY...

* UNTIL 415 PM EDT

* AT 254 PM EDT...LOCAL LAW ENFORCEMENT REPORTED THAT THE SEVERE
  THUNDERSTORM HAS PRODUCED WIND AND LIGHTNING DAMAGE IN THREE
  MUNICIPALITIES WITHIN THE COUNTY. THIS STORM WAS LOCATED 
  7 MILES WEST OF FRANKLIN...AND MOVING SOUTHEAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  7 MILES SOUTHWEST OF HAMBURG BY 305 PM EDT...
  FRANKLIN BY 310 PM EDT...
  OGDENSBURG BY 315 PM EDT...
  LAKE MOHAWK BY 320 PM EDT...
  HOPATCONG BY 325 PM EDT...

THUNDERSTORMS ARE CAPABLE OF PRODUCING HEAVY RAINFALL WHICH MAY
RESULT IN LOCALIZED AREAS OF FLOODING. DO NOT DRIVE IN AREAS WHERE
WATER IS CROSSING THE ROAD. A FLASH FLOOD WARNING IS IN EFFECT FOR
THE COUNTY.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

LAT...LON 4116 7442 4114 7474 4091 7469

$$
 
TFG
1 follow-up statement
000 
WWUS51 KPHI 271931
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
330 PM EDT WED JUN 27 2007

NJC037-272015-
/O.CON.KPHI.SV.W.0094.000000T0000Z-070627T2015Z/
SUSSEX NJ-
330 PM EDT WED JUN 27 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR EAST CENTRAL SUSSEX COUNTY...

AT 327 PM EDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. 
THIS STORM WAS LOCATED OVER CENTRAL SUSSEX COUNTY...OR ABOUT 24 MILES
NORTHWEST OF PATERSON...MOVING SOUTHEAST AT 15 MPH.
 
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. THERE HAVE BEEN 90 
CLOUD TO GROUND STRIKES WITH THIS STORM IN THE LAST 5 MINUTES.
MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

THIS STORM HAS A HISTORY OF PRODUCING WIND AND LIGHTNING DAMAGE ACROSS
SUSSEX COUNTY. THIS IS A DANGEROUS SITUATION. SEEK SHELTER INSIDE A 
STURDY STRUCTURE AND STAY AWAY FROM WINDOWS

LAT...LON 4111 7446 4105 7460 4094 7466

$$

TFG

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 12:45 PM EDTSevere Thunderstorm WarningPHISussex45 min
Jun 27, 1:31 PM EDTSevere Thunderstorm WarningPHISussex89 min
Jun 27, 2:03 PM EDTSpecial Marine WarningPHI87 min
Jun 27, 2:43 PM EDTFlash Flood WarningPHISussex3 hr
Jun 27, 3:16 PM EDTSevere Thunderstorm WarningPHIMorris59 min
Jun 27, 3:42 PM EDTExcessive Heat WarningPHIBurlington, Camden, Gloucester, Mercer27 hr
Jun 27, 7:29 PM EDTSevere Thunderstorm WarningPHISussex76 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.