Alert archive / New Jersey / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 52, NWS Philadelphia/Mount Holly

June 26, 2013Burlington County, Camden County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 26, 2013, 9:31 PM EDT for Burlington County, Camden County, New Jersey. It was in force for 44 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 26, 2013, 9:31 PM EDT (01:31 UTC)
Expired
Jun 26, 2013, 10:15 PM EDT
In force
44 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Burlington County, NJ, Camden County, NJ

The radar

The Philadelphia radar (KDIX), 33 km from the middle of the area, began a volume at 01:32 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.

IssuedProductOfficeLasted
Jun 26, 2:55 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 1.5 hours before the alert went out and 194 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-pSkew-T log-p diagram, Brookhaven, NY at 00:00Z on 2013-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 311 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 00:00Z on 2013-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
311 J/kg
Mixed-layer CIN
-81 J/kg
Mixed-layer LCL
1282 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

765 
WUUS51 KPHI 270131
SVRPHI
NJC005-007-270215-
/O.NEW.KPHI.SV.W.0052.130627T0131Z-130627T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
931 PM EDT WED JUN 26 2013

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

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

* UNTIL 1015 PM EDT

* AT 928 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM. THE STORM WAS NEAR GREENTREE...MOVING EAST AT
  15 MPH. THIS STORM IS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH. 

* LOCATIONS IMPACTED INCLUDE...
  EVESHAM...
  LUMBERTON...
  MEDFORD...
  LEISURETOWNE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS CREATE WINDS OF MORE THAN 57 MPH...OR HAIL ONE
INCH OR LARGER.

&&

LAT...LON 4002 7464 3979 7466 3983 7501 3995 7502
TIME...MOT...LOC 0131Z 270DEG 13KT 3989 7495

$$

IOVINO
1 follow-up statement
639 
WWUS51 KPHI 270152
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
952 PM EDT WED JUN 26 2013

NJC007-270201-
/O.CAN.KPHI.SV.W.0052.000000T0000Z-130627T0215Z/
CAMDEN NJ-
952 PM EDT WED JUN 26 2013

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

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

LAT...LON 3998 7487 4002 7464 3979 7466 3982 7488
TIME...MOT...LOC 0151Z 270DEG 13KT 3989 7486

$$

NJC005-270215-
/O.CON.KPHI.SV.W.0052.000000T0000Z-130627T0215Z/
BURLINGTON NJ-
952 PM EDT WED JUN 26 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT
FOR CENTRAL BURLINGTON COUNTY...

AT 949 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING ONE INCH DIAMETER
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED
NEAR MEDFORD...MOVING EAST AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
MEDFORD LAKES...
MEDFORD...
LEISURETOWNE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU OBSERVE THREATENING WEATHER...SEEK SHELTER AT ONCE.

&&

LAT...LON 3998 7487 4002 7464 3979 7466 3982 7488
TIME...MOT...LOC 0151Z 270DEG 13KT 3989 7486

$$

IOVINO

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 8:02 PM EDTSpecial Weather StatementPHICape May58 min
Jun 26, 8:11 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden64 min
Jun 26, 8:18 PM EDTSpecial Weather StatementPHIMercer, Monmouth57 min
Jun 26, 9:20 PM EDTSpecial Weather StatementPHIBurlington40 min
Jun 26, 10:20 PM EDTSpecial Weather StatementPHICamden40 min
Jun 26, 10:54 PM EDTSpecial Weather StatementPHIBurlington, Ocean51 min
Jun 27, 3:55 AM EDTSmall Craft AdvisoryPHI6 days
Jun 27, 3:52 PM EDTSpecial Marine WarningPHI38 min
Jun 27, 4:04 PM EDTSpecial Weather StatementPHISalem56 min
Jun 27, 4:22 PM EDTSpecial Marine WarningPHI38 min
Jun 27, 4:49 PM EDTSpecial Marine WarningPHI56 min
Jun 27, 4:51 PM EDTSpecial Weather StatementPHICamden, Cumberland, Gloucester, Salem114 min
Jun 27, 5:52 PM EDTSpecial Weather StatementPHIWarren53 min
Jun 27, 6:42 PM EDTSpecial Weather StatementPHIAtlantic, Burlington, Camden, Cape May, Mercer63 min
Jun 27, 7:07 PM EDTAreal Flood AdvisoryPHIHunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more3 hr
Jun 27, 7:19 PM EDTSpecial Weather StatementPHIHunterdon, Morris, Somerset, Warren56 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2013Every 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.