Alert archive / New Jersey / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 41, NWS Philadelphia/Mount Holly

June 24, 2013Burlington County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 24, 2013, 8:40 PM EDT for Burlington 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: Jun 24, 2013, 8:40 PM EDT (00:40 UTC)
Expired: Jun 24, 2013, 9:15 PM EDT
In force: 35 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

County Burlington County, NJ

The radar

The Philadelphia radar (KDIX), 18 km from the middle of the area, began a volume at 00:43 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
Jun 24, 8:43 PM EDT	TSTM WND DMG	Southampton Twp, NJ	TREE DOWN IN SOUTHAMPTON TWP AND SOME POWER OUTAGES.

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 00:00Z, 0.7 hours before the alert went out and 182 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: 1608 J/kg
Mixed-layer CIN: -102 J/kg
Mixed-layer LCL: 1390 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: -3 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

439 
WUUS51 KPHI 250040
SVRPHI
NJC005-250115-
/O.NEW.KPHI.SV.W.0041.130625T0040Z-130625T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
840 PM EDT MON JUN 24 2013

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

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

* UNTIL 915 PM EDT

* AT 838 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM. THE STORM WAS NEAR LEISURETOWNE...MOVING EAST
  AT 25 MPH. THIS STORM IS CAPABLE OF PRODUCING DAMAGING WIND GUSTS
  AND HAIL. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  PRESIDENTIAL LAKES AROUND 855 PM EDT...
  PRESIDENTIAL LAKES AROUND 900 PM EDT...

LAT...LON 3997 7450 3985 7444 3988 7474 3988 7476
      3993 7476
TIME...MOT...LOC 0040Z 274DEG 21KT 3990 7469

$$

FORECASTER:JJM

1 follow-up statement

405 
WWUS51 KPHI 250100
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
900 PM EDT MON JUN 24 2013

NJC005-250109-
/O.CAN.KPHI.SV.W.0041.000000T0000Z-130625T0115Z/
BURLINGTON NJ-
900 PM EDT MON JUN 24 2013

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

THE STORM THAT PROMPTED THE SEVERE THUNDERSTORM WARNING HAS MOVED OUT
OF THE AREA...THEREFORE THE SEVERE THUNDERSTORM WARNING HAS BEEN
CANCELLED.

OTHER THUNDERSTORMS WILL BE MOVING THROUGH THE COUNTY DURING THE 
NEXT HOUR OR SO. THESE THUNDERSTORMS ARE EXPECTED TO BE 
SUB-SEVERE.

LAT...LON 3997 7450 3985 7444 3988 7474 3988 7476
      3993 7476
TIME...MOT...LOC 0059Z 274DEG 21KT 3989 7455

$$

FORECASTER:JJM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 24, 8:56 PM EDT	Special Weather Statement	PHI	Burlington, Ocean	64 min
Jun 24, 9:04 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Ocean	56 min
Jun 24, 9:15 PM EDT	Special Marine Warning	PHI		2 hr
Jun 25, 3:26 PM EDT	Heat Advisory	PHI	Burlington, Camden, Gloucester, Mercer	20 hr
Jun 25, 3:30 PM EDT	Special Weather Statement	PHI	Somerset	60 min
Jun 25, 3:36 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Warren	54 min
Jun 25, 4:32 PM EDT	Special Weather Statement	PHI	Middlesex	58 min
Jun 25, 4:37 PM EDT	Special Weather Statement	PHI	Camden, Gloucester, Salem	53 min
Jun 25, 4:49 PM EDT	Severe Thunderstorm Warning	PHI	Camden	26 min
Jun 25, 4:58 PM EDT	Special Weather Statement	PHI	Burlington, Ocean	62 min
Jun 25, 5:25 PM EDT	Special Weather Statement	PHI	Atlantic, Camden, Cumberland, Gloucester, Salem	65 min
Jun 25, 5:48 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic	57 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2013 Every severe thunderstorm warning in 2013

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.