Alert archive / New Jersey / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 56, NWS Philadelphia/Mount Holly

June 28, 2013Burlington County, Camden County, Gloucester County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 28, 2013, 4:55 PM EDT for Burlington County, Camden County, Gloucester County, New Jersey. It was in force for 65 min. 4 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: Jun 28, 2013, 4:55 PM EDT (20:55 UTC)
Expired: Jun 28, 2013, 6:00 PM EDT
In force: 65 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Burlington County, NJ, Camden County, NJ, Gloucester County, NJ

The radar

The Philadelphia radar (KDIX), 40 km from the middle of the area, began a volume at 20:56 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 28, 5:15 PM EDT	TSTM WND DMG	Stratford, NJ	TREES AND WIRES DOWN.
Jun 28, 5:40 PM EDT	TSTM WND DMG	Medford, NJ	TREES AND WIRES DOWN
Jun 28, 5:40 PM EDT	TSTM WND DMG	Medford Lakes, NJ	TREES AND WIRES DOWN
Jun 28, 5:50 PM EDT	TSTM WND DMG	Tabernacle, NJ	WIRES DOWN

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
Jun 28, 2:08 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 8.9 hours before the alert went out and 206 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: 591 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 570 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 85 m²/s²
0-3 km storm-relative helicity: 138 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.8

Open this sounding in Storm Lab

The text

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

251 
WUUS51 KPHI 282055
SVRPHI
NJC005-007-015-282200-
/O.NEW.KPHI.SV.W.0056.130628T2055Z-130628T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
455 PM EDT FRI JUN 28 2013

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

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

* UNTIL 600 PM EDT

* AT 452 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM. THE STORM WAS NEAR OAK VALLEY...MOVING EAST AT
  30 MPH. THIS STORM IS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  PITMAN AND WESTVILLE AROUND 500 PM EDT...
  TURNERSVILLE AND BELLMAWR AROUND 505 PM EDT...
  MAGNOLIA AROUND 510 PM EDT...
  LINDENWOLD AND SICKLERVILLE AROUND 515 PM EDT...
  BERLIN AND VOORHEES AROUND 520 PM EDT...
  MARLTON LAKES AND ATCO AROUND 525 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS SEVERE THUNDERSTORM HAS A HISTORY OF PRODUCING WIND DAMAGE IN
GIBBSTOWN IN GLOUCESTER COUNTY. DO NOT STAY OUTDOORS. SEEK 
SHELTER IMMEDIATELY.

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

&&

LAT...LON 3965 7458 3966 7466 3968 7466 3973 7473
      3968 7480 3973 7528 3985 7527 4000 7457
TIME...MOT...LOC 2054Z 267DEG 25KT 3979 7517

$$

TFG

3 follow-up statements

843 
WWUS51 KPHI 282100
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
500 PM EDT FRI JUN 28 2013

NJC005-007-015-282200-
/O.CON.KPHI.SV.W.0056.000000T0000Z-130628T2200Z/
CAMDEN NJ-GLOUCESTER NJ-BURLINGTON NJ-
500 PM EDT FRI JUN 28 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR CENTRAL BURLINGTON...CENTRAL GLOUCESTER AND CAMDEN COUNTIES...

AT 456 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR WENONAH...OR 7 MILES
SOUTH OF GLOUCESTER CITY...MOVING EAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
BLACKWOOD AND TURNERSVILLE AROUND 505 PM EDT...
LAUREL SPRINGS AND STRATFORD AROUND 510 PM EDT...
PINE HILL AND PINE VALLEY AROUND 515 PM EDT...
BERLIN AND VOORHEES AROUND 520 PM EDT...
MARLTON LAKES AND ATCO AROUND 525 PM EDT...
MEDFORD LAKES AND MEDFORD AROUND 535 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING WIND DAMAGE IN GIBBSTOWN.
SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

IN ADDITION TO 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.

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

&&

LAT...LON 3965 7458 3966 7466 3968 7466 3973 7473
      3968 7480 3972 7521 3986 7522 4000 7457
TIME...MOT...LOC 2059Z 267DEG 25KT 3979 7512

$$

TFG

917 
WWUS51 KPHI 282129
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
529 PM EDT FRI JUN 28 2013

NJC015-282138-
/O.CAN.KPHI.SV.W.0056.000000T0000Z-130628T2200Z/
GLOUCESTER NJ-
529 PM EDT FRI JUN 28 2013

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN GLOUCESTER 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.

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

LAT...LON 3971 7465 3973 7473 3977 7505 3988 7508
      3999 7459 3971 7459
TIME...MOT...LOC 2128Z 267DEG 25KT 3980 7497

$$

NJC005-007-282200-
/O.CON.KPHI.SV.W.0056.000000T0000Z-130628T2200Z/
CAMDEN NJ-BURLINGTON NJ-
529 PM EDT FRI JUN 28 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR CENTRAL BURLINGTON AND CENTRAL CAMDEN COUNTIES...

AT 526 PM EDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED
NEAR CLEMENTON...OR 9 MILES SOUTHEAST OF GLOUCESTER CITY...MOVING
EAST AT 30 MPH. 

THE SEVERE THUNDERSTORM WILL BE NEAR...
MARLTON LAKES AND ATCO AROUND 535 PM EDT...
MEDFORD LAKES AROUND 545 PM EDT...
MEDFORD AROUND 550 PM EDT...
TABERNACLE AND SHAMONG AROUND 555 PM EDT...
LEISURETOWNE AND WHARTON STATE FOREST AROUND 600 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING WIND DAMAGE IN GLOUCESTER
COUNTY. 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 900 PM EDT FRIDAY
EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN NEW
JERSEY AND SOUTHEASTERN PENNSYLVANIA.

&&

LAT...LON 3971 7465 3973 7473 3977 7505 3988 7508
      3999 7459 3971 7459
TIME...MOT...LOC 2128Z 267DEG 25KT 3980 7497

$$

TFG

678 
WWUS51 KPHI 282145
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
545 PM EDT FRI JUN 28 2013

NJC007-282155-
/O.CAN.KPHI.SV.W.0056.000000T0000Z-130628T2200Z/
CAMDEN NJ-
545 PM EDT FRI JUN 28 2013

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL CAMDEN 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.

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

LAT...LON 3971 7459 3971 7465 3973 7473 3975 7478
      3979 7481 3979 7485 3980 7486 3989 7493
      3999 7459
TIME...MOT...LOC 2145Z 267DEG 25KT 3981 7482

$$

NJC005-282200-
/O.CON.KPHI.SV.W.0056.000000T0000Z-130628T2200Z/
BURLINGTON NJ-
545 PM EDT FRI JUN 28 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR CENTRAL BURLINGTON COUNTY...

AT 543 PM EDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED
NEAR MEDFORD LAKES...OR 16 MILES EAST OF GLOUCESTER CITY...MOVING
EAST AT 30 MPH. TERMINAL DOPPLER RADAR IS SHOWING A MICROBURST
IN THIS AREA.

THE SEVERE THUNDERSTORM WILL BE NEAR...
MEDFORD AROUND 550 PM EDT...
TABERNACLE AND SHAMONG AROUND 555 PM EDT...
WHARTON STATE FOREST AND LEISURETOWNE AROUND 600 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS. THIS STORM HAS THE POTENTIAL TO CAUSE 
INJURY AND DAMAGE TO PROPERTY.

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

&&

LAT...LON 3971 7459 3971 7465 3973 7473 3975 7478
      3979 7481 3979 7485 3980 7486 3989 7493
      3999 7459
TIME...MOT...LOC 2145Z 267DEG 25KT 3981 7482

$$

TFG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 27, 8:04 PM EDT	Flash Flood Warning	PHI	Hunterdon, Mercer, Somerset	4 hr
Jun 27, 8:06 PM EDT	Special Weather Statement	PHI	Atlantic, Burlington, Ocean	54 min
Jun 27, 8:18 PM EDT	Special Weather Statement	PHI	Mercer, Middlesex, Morris, Somerset, Sussex, Warren	72 min
Jun 27, 10:00 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more	3 hr
Jun 27, 10:48 PM EDT	Areal Flood Warning	PHI	Somerset	4 hr
Jun 28, 1:01 AM EDT	Areal Flood Advisory	PHI	Mercer, Somerset	5 hr
Jun 28, 4:23 PM EDT	Special Weather Statement	PHI	Camden, Gloucester	52 min
Jun 28, 4:46 PM EDT	Special Marine Warning	PHI		44 min
Jun 28, 5:49 PM EDT	Flash Flood Warning	PHI	Camden, Gloucester, Salem	4 hr
Jun 28, 5:57 PM EDT	Severe Thunderstorm Warning	PHI	Burlington	48 min
Jun 28, 6:13 PM EDT	Special Weather Statement	PHI	Ocean	62 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.