Alert archive / New Jersey / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 58, NWS Philadelphia/Mount Holly

June 28, 2013Burlington County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 28, 2013, 5:57 PM EDT for Burlington County, New Jersey. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 28, 2013, 5:57 PM EDT (21:57 UTC)
Expired: Jun 28, 2013, 6:45 PM EDT
In force: 48 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

County Burlington County, NJ

The radar

The Philadelphia radar (KDIX), 22 km from the middle of the area, began a volume at 22:00 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.

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, 10.0 hours before the alert went out and 188 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.

402 
WUUS51 KPHI 282157
SVRPHI
NJC005-282245-
/O.NEW.KPHI.SV.W.0058.130628T2157Z-130628T2245Z/

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

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

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

* UNTIL 645 PM EDT

* AT 555 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM. THE STORM WAS NEAR TABERNACLE...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 605 PM EDT...
  CHATSWORTH AROUND 610 PM EDT...
  PENN STATE FOREST AROUND 620 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS SEVERE THUNDERSTORM HAS A HISTORY OF PRODUCING WIND DAMAGE.
CLOUD TO GROUND LIGHTNING IS ALSO OCCURRING WITH THIS STORM.

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 3964 7440 3977 7480 3979 7484 4005 7454
      3986 7444
TIME...MOT...LOC 2156Z 281DEG 24KT 3981 7465

$$

FORECASTER:JJM

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, 4:55 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester	65 min
Jun 28, 5:49 PM EDT	Flash Flood Warning	PHI	Camden, Gloucester, Salem	4 hr
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.