Alert archive / New Jersey / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 90, NWS Philadelphia/Mount Holly

June 27, 2007Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 27, 2007, 12:45 PM EDT for Sussex County, New Jersey. It was in force for 45 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, 12:45 PM EDT (16:45 UTC)
Expired
Jun 27, 2007, 1:30 PM EDT
In force
45 min
Issued by
NWS Philadelphia/Mount Holly
Area
Counties, with a storm outline in the text

County Sussex County, NJ

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 4.8 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, Albany, NY at 12:00Z on 2007-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1637 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, Albany, NY at 12:00Z on 2007-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 9 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
1637 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
997 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
9 m²/s²
0-3 km storm-relative helicity
27 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 271645
SVRPHI
NJC037-271730-
/O.NEW.KPHI.SV.W.0090.070627T1645Z-070627T1730Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1245 PM EDT WED JUN 27 2007

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

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

* UNTIL 130 PM EDT

* AT 1240 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 OVER
  EXTREME NORTHERN SUSSEX COUNTY...AND MOVING NORTHEAST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL AREAS AROUND HIGH POINT.

LAT...LON 4136 7485 4123 7468 4159 7411 4178 7436

$$

IOVINO
1 follow-up statement
000 
WWUS51 KPHI 271659
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1258 PM EDT WED JUN 27 2007

NJC037-271730-
/O.CON.KPHI.SV.W.0090.000000T0000Z-070627T1730Z/
SUSSEX NJ-
1258 PM EDT WED JUN 27 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM EDT
FOR NORTH CENTRAL SUSSEX COUNTY...

AT 1258 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL 
AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THE STORM WAS LOCATED OVER
NORTHERN SUSSEX COUNTY AND IT WAS MOVING NORTHEAST AT 10 MPH.  
LOCATIONS THAT MAY BE AFFECTED BY SEVERE WEATHER INCLUDE 
HAINESVILLE...SUSSEX AND HIGH POINT. 

LAT...LON 4136 7485 4123 7468 4159 7411 4178 7436

$$

IOVINO

The office that day

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

IssuedProductOfficeCountiesLasted
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, 2:58 PM EDTSevere Thunderstorm WarningPHISussex77 min
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.