Alert archive / New Jersey / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 103, NWS Philadelphia/Mount Holly

June 27, 2007Morris County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 27, 2007, 8:56 PM EDT for Morris County, New Jersey. It was in force for 69 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 27, 2007, 8:56 PM EDT (00:56 UTC)
Expired
Jun 27, 2007, 10:05 PM EDT
In force
69 min
Issued by
NWS Philadelphia/Mount Holly
Area
Counties, with a storm outline in the text

County Morris County, NJ

What was reported inside it

TimeReportWhereRemark
Jun 27, 9:15 PM EDTTSTM WND DMGKinnelon, NJTREES DOWN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 27, 7:26 PM EDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 0.9 hours before the alert went out and 137 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 00:00Z on 2007-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 348 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 00:00Z on 2007-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.193958Sfc1 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
348 J/kg
Mixed-layer CIN
-181 J/kg
Mixed-layer LCL
1243 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
79 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 280056
SVRPHI
NJC027-280230-
/O.NEW.KPHI.SV.W.0103.070628T0056Z-070628T0230Z/

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

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MORRIS COUNTY IN NORTHERN NEW JERSEY...

* UNTIL 1030 PM EDT

* AT 855 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM PEQUANNOCK TOWNSHIP TO BUDD
  LAKE...OR ALONG A LINE EXTENDING FROM 6 MILES WEST OF PATERSON TO
  30 MILES NORTHWEST OF NEW BRUNSWICK...AND MOVING EAST AT 25 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  CHESTER BY 905 PM EDT...
  PARSIPPANY BY 910 PM EDT...
  EAST HANOVER BY 925 PM EDT...
  MORRISTOWN BY 930 PM EDT...
  MADISON BY 935 PM EDT...

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.

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 4090 7428 4089 7434 4086 7431 4078 7437
      4074 7437 4064 7452 4070 7450 4075 7456
      4072 7474 4074 7482 4078 7488 4091 7477
      4092 7465 4097 7463 4107 7451 4103 7449
      4104 7444 4102 7443 4098 7428 4089 7427

$$

 
TFG
1 follow-up statement
000 
WWUS51 KPHI 280205
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1004 PM EDT WED JUN 27 2007

NJC027-280214-
/O.CAN.KPHI.SV.W.0103.000000T0000Z-070628T0230Z/
MORRIS NJ-
1004 PM EDT WED JUN 27 2007

...THE SEVERE THUNDERSTORM WARNING FOR MORRIS COUNTY IS CANCELLED...

SHOWERS WILL LINGER THROUGH THE LATE EVENING HOURS, BUT SEVERE 
WEATHER HAS NOW MOVED OUT OF THE COUNTY. THE SEVERE THUNDERSTORM 
WARNING HAS THEREFORE BEEN CANCELLED.


LAT...LON 4090 7428 4089 7434 4086 7431 4078 7437
      4074 7437 4064 7452 4070 7450 4075 7456
      4072 7474 4074 7482 4078 7488 4091 7477
      4092 7465 4097 7463 4107 7451 4103 7449
      4104 7444 4102 7443 4098 7428 4089 7427

$$

JJM

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 8:18 PM EDTSevere Thunderstorm WarningPHIWarren87 min
Jun 27, 9:38 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester67 min
Jun 27, 10:02 PM EDTSpecial Marine WarningPHI58 min
Jun 27, 10:09 PM EDTSevere Thunderstorm WarningPHIMercer66 min
Jun 27, 10:40 PM EDTSevere Thunderstorm WarningPHIBurlington80 min
Jun 27, 10:47 PM EDTSevere Thunderstorm WarningPHICamden43 min
Jun 27, 10:57 PM EDTSevere Thunderstorm WarningPHIAtlantic63 min
Jun 27, 11:06 PM EDTSevere Thunderstorm WarningPHIMonmouth69 min
Jun 27, 11:10 PM EDTSpecial Marine WarningPHI95 min
Jun 27, 11:30 PM EDTSevere Thunderstorm WarningPHIOcean59 min
Jun 28, 3:40 PM EDTSpecial Marine WarningPHI95 min
Jun 28, 4:51 PM EDTSevere Thunderstorm WarningPHISussex54 min
Jun 28, 5:00 PM EDTFlash Flood WarningPHISussex3 hr
Jun 28, 5:29 PM EDTSevere Thunderstorm WarningPHIMorris61 min
Jun 28, 7:24 PM EDTSevere Thunderstorm WarningPHIMercer66 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.