Alert archive / New Jersey / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 74, NWS Philadelphia/Mount Holly

June 12, 2007Hunterdon County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 12, 2007, 7:48 PM EDT for Hunterdon County, New Jersey. It was in force for 57 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 12, 2007, 7:48 PM EDT (23:48 UTC)
Expired
Jun 12, 2007, 8:45 PM EDT
In force
57 min
Issued by
NWS Philadelphia/Mount Holly
Area
Counties, with a storm outline in the text

County Hunterdon County, NJ

What was reported inside it

TimeReportWhereRemark
Jun 12, 8:20 PM EDTHAIL 0.75Flemington, NJ

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 12, 12:55 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 11.8 hours before the alert went out and 158 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 122348
SVRPHI
NJC019-130045-
/O.NEW.KPHI.SV.W.0074.070612T2348Z-070613T0045Z/

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

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN AND EASTERN HUNTERDON COUNTY IN NORTHWEST NEW JERSEY...

* UNTIL 845 PM EDT

* AT 742 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 6 MILES
  NORTHEAST OF WHITE HOUSE STATION...OR ABOUT 16 MILES NORTHWEST OF
  NEW BRUNSWICK...AND MOVING SOUTHWEST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WHITE HOUSE STATION BY 800 PM EDT...
  FLEMINGTON BY 820 PM EDT...

LAT...LON 4054 7475 4069 7474 4051 7506 4036 7493
      4044 7478 4048 7481

$$

MPD

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, 3:09 PM EDTSevere Thunderstorm WarningPHIGloucester25 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

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.