Alert archive / New Jersey / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 162, NWS Philadelphia/Mount Holly

September 6, 2014Burlington County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 6, 2014, 5:44 PM EDT for Burlington County, Ocean County, New Jersey. It was in force for 35 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: Sep 6, 2014, 5:44 PM EDT (21:44 UTC)
Expired: Sep 6, 2014, 6:19 PM EDT
In force: 35 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Burlington County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 2 km from the middle of the area, began a volume at 21:45 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
Sep 6, 5:47 PM EDT	HAIL 0.75	Pemberton, 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
Sep 6, 2:07 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 9.7 hours before the alert went out and 166 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: 1867 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 709 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 108 m²/s²
0-3 km storm-relative helicity: 103 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

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

626 
WUUS51 KPHI 062144
SVRPHI
NJC005-029-062245-
/O.NEW.KPHI.SV.W.0162.140906T2144Z-140906T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
544 PM EDT SAT SEP 6 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

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

* UNTIL 645 PM EDT

* AT 542 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM. THE STORM WAS NEAR PEMBERTON HEIGHTS...MOVING
  EAST AT 25 MPH. THIS STORM IS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WRIGHTSTOWN AROUND 550 PM EDT...
  PRESIDENTIAL LAKES AND BROWNS MILLS AROUND 600 PM EDT...
  CHATSWORTH AROUND 605 PM EDT...
  WOODRUFF AROUND 610 PM EDT...
  OLD HALFWAY AND PENN STATE FOREST AROUND 615 PM EDT...
  CEDAR GLEN LAKES AROUND 620 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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
SATURDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW
JERSEY AND EASTERN PENNSYLVANIA.

&&

LAT...LON 3966 7424 3986 7486 4003 7479 4012 7424
      4011 7424 4011 7419
TIME...MOT...LOC 2144Z 273DEG 21KT 3994 7468

$$

FORECASTER: SFJ

2 follow-up statements

294 
WWUS51 KPHI 062159
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
559 PM EDT SAT SEP 6 2014

NJC005-029-062245-
/O.CON.KPHI.SV.W.0162.000000T0000Z-140906T2245Z/
BURLINGTON NJ-OCEAN NJ-
559 PM EDT SAT SEP 6 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR NORTHWESTERN OCEAN AND CENTRAL BURLINGTON COUNTIES...

AT 557 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR BROWNS MILLS...OR 21 MILES SOUTHEAST OF TRENTON...MOVING
EAST AT 25 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  CEDAR GLEN LAKES BY 620 PM EDT...
  WHITING AND CRESTWOOD VILLAGE BY 625 PM EDT...
  LAKEHURST BY 630 PM EDT...
  HOLIDAY CITY...BAMBER LAKE AND LEISURE KNOLL BY 635 PM EDT...
  HOLIDAY HEIGHTS BY 640 PM EDT...
  SILVER RIDGE AND PLEASANT PLAINS BY 645 PM EDT...

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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
SATURDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW
JERSEY AND EASTERN PENNSYLVANIA.

LAT...LON 3973 7423 3987 7474 4005 7469 4012 7424
      4011 7424 4011 7419
TIME...MOT...LOC 2159Z 273DEG 21KT 3996 7457

$$

SFJ

379 
WWUS51 KPHI 062219
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
619 PM EDT SAT SEP 6 2014

NJC005-029-062229-
/O.CAN.KPHI.SV.W.0162.000000T0000Z-140906T2245Z/
BURLINGTON NJ-OCEAN NJ-
619 PM EDT SAT SEP 6 2014

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN OCEAN AND CENTRAL
BURLINGTON COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED. THUS...THE 
WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
SATURDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW
JERSEY AND EASTERN PENNSYLVANIA.

LAT...LON 3973 7423 3987 7474 4005 7469 4012 7424
      4011 7424 4011 7419
TIME...MOT...LOC 2219Z 273DEG 21KT 3995 7442

$$

SFJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 6, 1:37 PM EDT	Special Weather Statement	PHI	Warren	53 min
Sep 6, 1:46 PM EDT	Special Weather Statement	PHI	Sussex	59 min
Sep 6, 2:58 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Mercer, Middlesex, Somerset	4 hr
Sep 6, 3:19 PM EDT	Special Weather Statement	PHI	Middlesex	26 min
Sep 6, 3:25 PM EDT	Special Weather Statement	PHI	Mercer	65 min
Sep 6, 3:32 PM EDT	Special Weather Statement	PHI	Hunterdon	58 min
Sep 6, 3:45 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer	60 min
Sep 6, 4:03 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex, Monmouth	57 min
Sep 6, 4:19 PM EDT	Special Marine Warning	PHI		56 min
Sep 6, 4:45 PM EDT	Special Weather Statement	PHI	Hunterdon, Mercer, Middlesex, Morris, Somerset	60 min
Sep 6, 4:47 PM EDT	Special Weather Statement	PHI	Burlington	58 min
Sep 6, 4:52 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Gloucester, Salem	36 min
Sep 6, 4:54 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Middlesex, Monmouth, Ocean	43 min
Sep 6, 4:58 PM EDT	Special Marine Warning	PHI		62 min
Sep 6, 5:09 PM EDT	Special Marine Warning	PHI		66 min
Sep 6, 5:26 PM EDT	Special Marine Warning	PHI		64 min
Sep 6, 5:31 PM EDT	Special Weather Statement	PHI	Burlington	59 min
Sep 6, 6:41 PM EDT	Special Weather Statement	PHI	Salem	64 min
Sep 6, 7:41 PM EDT	Special Marine Warning	PHI		64 min
Sep 6, 7:45 PM EDT	Special Weather Statement	PHI	Cape May	60 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.