Alert archive / New Jersey / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 112, NWS Philadelphia/Mount Holly

June 29, 2008Middlesex County, Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 29, 2008, 1:47 PM EDT for Middlesex County, Monmouth County, New Jersey. It was in force for 29 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 29, 2008, 1:47 PM EDT (17:47 UTC)
Expired
Jun 29, 2008, 2:16 PM EDT
In force
29 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Middlesex County, NJ, Monmouth County, NJ

The radar

The Philadelphia radar (KDIX), 58 km from the middle of the area, began a volume at 17:50 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.

What was reported inside it

TimeReportWhereRemark
Jun 29, 1:50 PM EDTHAIL 0.5Union Beach, NJDIME TO MARBLE SIZED HAIL REPORTED IN HAZLET.

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

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 5.8 hours before the alert went out and 122 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 2008-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 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 2008-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -32 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
5 J/kg
Mixed-layer CIN
-298 J/kg
Mixed-layer LCL
1853 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-32 m²/s²
0-3 km storm-relative helicity
-9 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 291747
SVRPHI
NJC023-025-291830-
/O.NEW.KPHI.SV.W.0112.080629T1747Z-080629T1830Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
147 PM EDT SUN JUN 29 2008

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN MONMOUTH COUNTY IN CENTRAL NEW JERSEY...
  EAST CENTRAL MIDDLESEX COUNTY IN NORTHERN NEW JERSEY...

* UNTIL 230 PM EDT

* AT 146 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
  MATAWAN...OR ABOUT 9 MILES SOUTHEAST OF PERTH AMBOY...AND MOVING
  NORTHEAST AT 28 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  KEANSBURG BY 155 PM...
  6 MILES NORTHWEST OF SANDY HOOK BY 210 PM...

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 4028 7420 4040 7437 4050 7426 4047 7426
      4044 7420 4046 7418 4045 7415 4046 7413
      4044 7409 4041 7401 4042 7400 4047 7402
      4048 7400 4044 7397
TIME...MOT...LOC 1747Z 225DEG 24KT 4040 7420

$$

SZATKOWSKI
1 follow-up statement
000 
WWUS51 KPHI 291816
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
215 PM EDT SUN JUN 29 2008

NJC023-025-291825-
/O.CAN.KPHI.SV.W.0112.000000T0000Z-080629T1830Z/
MIDDLESEX NJ-MONMOUTH NJ-
215 PM EDT SUN JUN 29 2008

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MONMOUTH AND EAST
CENTRAL MIDDLESEX COUNTIES IS CANCELLED...

THE STORM THAT PROMPTED THE WARNING HAS MOVED NORTHEAST OF THE 
WARNED AREA.  THE WARNING HAS BEEN CANCELLED. 


LAT...LON 4028 7420 4040 7437 4050 7426 4047 7426
      4044 7420 4046 7418 4045 7415 4046 7413
      4044 7409 4041 7401 4042 7400 4047 7402
      4048 7400 4044 7397
TIME...MOT...LOC 1815Z 225DEG 24KT 4053 7403

$$

SZATKOWSKI

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 3:31 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Somerset44 min
Jun 29, 3:44 PM EDTSevere Thunderstorm WarningPHIMonmouth46 min
Jun 29, 4:11 PM EDTSevere Thunderstorm WarningPHIMercer, Middlesex, Somerset64 min
Jun 29, 4:56 PM EDTFlash Flood WarningPHIMiddlesex118 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2008Every severe thunderstorm warning in 2008

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; radar from the NEXRAD Level II archive.