Alert archive / New Jersey / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 106, NWS Philadelphia/Mount Holly

July 8, 2014Burlington County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 8, 2014, 8:44 PM EDT for Burlington County, New Jersey. It was in force for 69 min. 10 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 8, 2014, 8:44 PM EDT (00:44 UTC)
Expired: Jul 8, 2014, 9:53 PM EDT
In force: 69 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

County Burlington County, NJ

The radar

The Philadelphia radar (KDIX), 30 km from the middle of the area, began a volume at 00:46 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 8, 8:46 PM EDT	TSTM WND GST 58	Maple Shade, NJ
Jul 8, 8:48 PM EDT	TSTM WND DMG	Riverside, NJ	LARE TREE AND LARGE TREE LIMBS REPORTED DOWN.
Jul 8, 8:48 PM EDT	TSTM WND DMG	Riverside, NJ	LARGE TREE AND LARGE TREE LIMBS REPORTED DOWN.
Jul 8, 8:48 PM EDT	TSTM WND DMG	Riverside, NJ	SEVERAL TREES AND LARGE TREE LIMBS REPORTED DOWN. POWERLINES ALSO DOWN
Jul 8, 8:52 PM EDT	TSTM WND DMG	Moorestown, NJ	TREE DOWN ON CREEK ROAD PARTIALLY BLOCKING THE ROADWAY.
Jul 8, 8:58 PM EDT	TSTM WND GST 58	Burlington, NJ
Jul 8, 9:00 PM EDT	TSTM WND GST 60	Westampton Twp, NJ	BLEW TREE DOWN WITH A BASE OF 1.5 FEET DIAMETER.
Jul 8, 9:05 PM EDT	TSTM WND DMG	Lumberton, NJ	TREE SPLIT IN HALF IN LUMBERTON.
Jul 8, 9:05 PM EDT	TSTM WND GST 60	Southampton Twp, NJ
Jul 8, 9:13 PM EDT	TSTM WND GST 48	Mcguire Afb, 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.

Issued	Product	Office	Lasted
Jul 8, 5:05 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 0.7 hours before the alert went out and 193 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: 342 J/kg
Mixed-layer CIN: -179 J/kg
Mixed-layer LCL: 1109 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 114 m²/s²
0-3 km storm-relative helicity: 124 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

666 
WUUS51 KPHI 090044
SVRPHI
NJC005-090230-
/O.NEW.KPHI.SV.W.0106.140709T0044Z-140709T0230Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
844 PM EDT TUE JUL 8 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 1030 PM EDT

* AT 842 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM. THE STORM WAS NEAR RIVERTON...MOVING EAST AT
  40 MPH. THIS STORM IS CAPABLE OF PRODUCING ONE INCH DIAMETER
  HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WILLINGBORO AND BEVERLY AROUND 900 PM EDT...
  JACKSONVILLE AND MOUNT HOLLY AROUND 905 PM EDT...
  GEORGETOWN AND JOBSTOWN AROUND 910 PM EDT...
  WRIGHTSTOWN AND CROSSWICKS AROUND 915 PM EDT...
  PENN STATE FOREST AND BASS RIVER STATE FOREST AROUND 920 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...MOVE INDOORS TO A
STURDY BUILDING AND STAY AWAY FROM WINDOWS. WHEN IT IS SAFE TO DO
SO...REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR TO THE 
NATIONAL WEATHER SERVICE. THIS AND OTHER STORMS HEADING TOWARD THE 
AREA HAVE A HISTORY OR PRODUCING DAMAGING WINDS AND POWER OUTAGES.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT
TUESDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY
AND EASTERN PENNSYLVANIA. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN
EFFECT UNTIL MIDNIGHT EDT WEDNESDAY MORNING FOR NORTHEAST NEW JERSEY.

&&

LAT...LON 3954 7443 3964 7466 3968 7467 3979 7481
      3978 7489 3989 7493 3994 7498 3995 7502
      3998 7501 3999 7506 4007 7494 4008 7487
      4013 7482 4012 7478 4015 7472 4018 7471
      4013 7458 3977 7439 3959 7439
TIME...MOT...LOC 0043Z 259DEG 51KT 4001 7500

$$

FORECASTER:JJM

2 follow-up statements

377 
WWUS51 KPHI 090133
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
933 PM EDT TUE JUL 8 2014

NJC005-090230-
/O.CON.KPHI.SV.W.0106.000000T0000Z-140709T0230Z/
BURLINGTON NJ-
933 PM EDT TUE JUL 8 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT
FOR BURLINGTON COUNTY...

AT 930 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE 
EXTENDING FROM MCGUIRE AFB TO ATSION...MOVING EAST AT 50 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  BATSTO BY 935 PM EDT...
  WHARTON STATE FOREST AND CHATSWORTH BY 940 PM EDT...
  WADING RIVER AND NEW GRETNA BY 945 PM EDT...
  BASS RIVER STATE FOREST AND PENN STATE FOREST BY 950 PM EDT...

THIS LINE OF STORMS WITH ITS ASSOCIATED GUST FRONT HAS A HISTORY OF 
PRODUCING WIND DAMAGE ACROSS NORTHWESTERN BURLINGTON COUNTY AS IT 
MOVED THROUGH. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY 
AWAY FROM WINDOWS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT
TUESDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY
AND EASTERN PENNSYLVANIA. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN
EFFECT UNTIL MIDNIGHT EDT WEDNESDAY MORNING FOR NORTHEAST NEW JERSEY.

LAT...LON 3954 7443 3964 7466 3968 7467 3979 7481
      3978 7489 3989 7493 3994 7498 3995 7502
      3998 7501 3999 7506 4007 7494 4008 7487
      4013 7482 4012 7478 4015 7472 4018 7471
      4013 7458 3977 7439 3959 7439
TIME...MOT...LOC 0131Z 256DEG 43KT 4007 7447 3971 7474

$$

AMC

182 
WWUS51 KPHI 090153 RRA
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
953 PM EDT TUE JUL 8 2014

NJC005-090201-
/O.CAN.KPHI.SV.W.0106.000000T0000Z-140709T0230Z/
BURLINGTON NJ-
953 PM EDT TUE JUL 8 2014

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

THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED. A FEW SHOWERS 
AND THUNDERSTORMS WILL CONTINUE FOR ANOTHER HOUR OR SO MAINLY OVER 
THE SOUTHEAST PART OF THE COUNTY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT
TUESDAY EVENING FOR SOUTHERN DELAWARE AND NEW JERSEY AND NORTHEAST
PENNSYLVANIA. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT
UNTIL MIDNIGHT EDT WEDNESDAY MORNING FOR NORTHEAST NEW JERSEY.

LAT...LON 3954 7443 3964 7466 3968 7467 3979 7481
      3978 7489 3989 7493 3994 7498 3995 7502
      3998 7501 3999 7506 4007 7494 4008 7487
      4013 7482 4012 7478 4015 7472 4018 7471
      4013 7458 3977 7439 3959 7439
TIME...MOT...LOC 0151Z 256DEG 43KT 4012 7416 3977 7444

$$

AMC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 8, 8:16 PM EDT	Special Marine Warning	PHI		119 min
Jul 8, 8:21 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Cumberland, Gloucester, Salem	69 min
Jul 8, 8:56 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more	73 min
Jul 8, 9:02 PM EDT	Special Weather Statement	PHI	Atlantic, Cape May, Cumberland	58 min
Jul 8, 9:12 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	63 min
Jul 8, 9:22 PM EDT	Special Marine Warning	PHI		113 min
Jul 8, 9:48 PM EDT	Special Marine Warning	PHI		117 min
Jul 9, 8:52 AM EDT	Small Craft Advisory	PHI		12 hr
Jul 9, 2:48 PM EDT	Special Weather Statement	PHI	Sussex	72 min
Jul 9, 3:25 PM EDT	Special Weather Statement	PHI	Sussex	65 min
Jul 9, 3:28 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	49 min
Jul 9, 5:38 PM EDT	Severe Thunderstorm Warning	PHI	Sussex, Warren	64 min
Jul 9, 6:27 PM EDT	Severe Thunderstorm Warning	PHI	Morris	63 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2014 Every severe thunderstorm warning in 2014

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.