Alert archive / New Jersey / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 174, NWS Philadelphia/Mount Holly

July 18, 2006Burlington County, Camden County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 18, 2006, 7:35 PM EDT for Burlington County, Camden County, New Jersey. It was in force for 55 min. 7 reports 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: Jul 18, 2006, 7:35 PM EDT (23:35 UTC)
Expired: Jul 18, 2006, 8:30 PM EDT
In force: 55 min
Issued by: NWS Philadelphia/Mount Holly
Area: Counties, with a storm outline in the text

Counties Burlington County, NJ, Camden County, NJ

The radar

The Philadelphia radar (KDIX), 37 km from the middle of the area, began a volume at 23:38 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

Time	Report	Where	Remark
Jul 18, 7:45 PM EDT	TSTM WND DMG	Cherry Hill, NJ	TREES DOWN
Jul 18, 7:45 PM EDT	TSTM WND DMG	Cherry Hill, NJ	TREES DOWN.
Jul 18, 8:15 PM EDT	TSTM WND DMG	Willingboro, NJ	A LARGE TREE SNAPPED AND LEANING ON POWER LINES IN WILLINGBORO AT THE CORNER OF BEVERLY-RANCOCAS ROAD AND SALEM ROAD. ALSO, SOME LARGE TREE LIMBS DOWN ALONG BEVERLY-RANCOCAS ROAD.
Jul 18, 8:25 PM EDT	TSTM WND DMG	5 Se Medford Lakes, NJ	LARGE TREES DOWN IN TABERNACLE ALONG WITH A 64 MPH WIND GUST WITH THE INITIAL GUST FRONT.
Jul 18, 8:30 PM EDT	TSTM WND DMG	5 Ene Burlington, NJ	TREES AND WIRES DOWN IN MANSFIELD TOWNSHIP.
Jul 18, 8:33 PM EDT	TSTM WND DMG	Burlington, NJ	60 MPH WIND GUST IN BURLINGTON CITY.
Jul 18, 8:33 PM EDT	TSTM WND GST 60	Burlington, NJ	A 60 MPH THUNDERSTORM WIND GUST WAS REPORTED IN BURLINGTON CITY.

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.

Issued	Product	Office	Lasted
Jul 18, 6:37 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 11.6 hours before the alert went out and 121 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1100 J/kg
Mixed-layer CIN: -174 J/kg
Mixed-layer LCL: 1804 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -17 m²/s²
0-3 km storm-relative helicity: 16 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 182336
SVRPHI
NJC005-007-190030-
/O.NEW.KPHI.SV.W.0174.060718T2335Z-060719T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
735 PM EDT TUE JUL 18 2006

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY
  CAMDEN COUNTY IN SOUTHERN NEW JERSEY
  THIS INCLUDES THE CITY OF CAMDEN

* UNTIL 830 PM EDT

* AT 734 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED NEAR
  NEAR PHILADELPHIA...AND MOVING EAST AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  GLOUCESTER CITY...CAMDEN AND BELLMAWR BY 740 PM EDT...
  CHERRY HILL...CHERRYHILL MALL AND MAGNOLIA BY 745 PM EDT...
  GREENTREE...MARLTON AND SPRINGDALE BY 750 PM EDT...
  MEDFORD BY 800 PM EDT...

WIND DAMAGE WITH THIS STORM MAY OCCUR WELL AHEAD OF ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

LAT...LON 4017 7471 3999 7506 3988 7515 3963 7490
      4000 7452

$$

AMC

1 follow-up statement

000 
WWUS51 KPHI 190015
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
814 PM EDT TUE JUL 18 2006

NJC005-007-190030-
/O.CON.KPHI.SV.W.0174.000000T0000Z-060719T0030Z/
CAMDEN NJ-BURLINGTON NJ-
814 PM EDT TUE JUL 18 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR NORTHERN BURLINGTON AND CAMDEN COUNTIES...

AT 812 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS
IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED NEAR PENNSAUKEN...OR
ABOUT NEAR CAMDEN...MOVING EAST AT 40 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  CINNAMINSON...MOORESTOWN-LENOLA...RIVERSIDE AND DELANCO BY 820 PM
  EDT...
  WILLINGBORO AND EDGEWATER PARK BY 825 PM EDT...
  MOUNT HOLLY...BURLINGTON...7 MILES SOUTH OF FLORENCE-ROEBLING AND 8
  MILES NORTH OF MEDFORD BY 830 PM EDT...

THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE ACROSS 
THE AREA. THIS IS A DANGEROUS SITUATION SEEK SHELTER NOW INSIDE A 
STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM EDT
WEDNESDAY MORNING FOR SOUTHWESTERN DELAWARE AND NORTHEASTERN MARYLAND
AND NORTHWESTERN NEW JERSEY AND SOUTHEAST PENNSYLVANIA.

LAT...LON 4017 7471 3999 7506 3988 7515 3963 7490
      4000 7452

$$

AMC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 6:04 PM EDT	Severe Thunderstorm Warning	PHI	Warren	56 min
Jul 18, 6:15 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon	60 min
Jul 18, 6:46 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Somerset	44 min
Jul 18, 7:20 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	55 min
Jul 18, 7:56 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer	34 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2006 Every severe thunderstorm warning in 2006

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.