Alert archive / New Jersey / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 149, NWS Philadelphia/Mount Holly

July 28, 2014Burlington County, Camden County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 28, 2014, 1:00 AM EDT for Burlington County, Camden County, New Jersey. It was in force for 45 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
Jul 28, 2014, 1:00 AM EDT (05:00 UTC)
Expired
Jul 28, 2014, 1:45 AM EDT
In force
45 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Burlington County, NJ, Camden County, NJ

The radar

The Philadelphia radar (KDIX), 38 km from the middle of the area, began a volume at 05:01 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

TimeReportWhereRemark
Jul 28, 1:08 AM EDTTSTM WND DMGMedford Twp, NJTREES DOWN WITH SOME DAMAGE TO HOMES IN THE HOOT OWL SUBDIVISION IN MEDFORD TOWNSHIP. TWO HOMES WITH MAJOR DAMAGE AND UNINHABITABLE. ABOUT 4 TO 5 HOMES WITH SOME SHINGLE OR SIDING DAMAGE. ALSO... IN THREE LOCATIONS... A TREE FELL ONTO A CAR.

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, 5.0 hours before the alert went out and 201 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 2014-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 942 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 2014-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 146 square meters per square second.1939587897Sfc1 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
942 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
994 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
146 m²/s²
0-3 km storm-relative helicity
102 m²/s²
Significant tornado parameter
0.4
Supercell composite
4.2

Open this sounding in Storm Lab

The text

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

997 
WUUS51 KPHI 280500
SVRPHI
NJC005-007-280545-
/O.NEW.KPHI.SV.W.0149.140728T0500Z-140728T0545Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
100 AM EDT MON JUL 28 2014

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 145 AM EDT

* AT 1259 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM. THE STORM WAS NEAR VOORHEES...MOVING EAST AT
  35 MPH. THIS STORM IS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MEDFORD AND LUMBERTON AROUND 115 AM EDT...
  LEISURETOWNE AND TABERNACLE AROUND 120 AM EDT...
  PEMBERTON AROUND 125 AM EDT...
  PRESIDENTIAL LAKES AND BROWNS MILLS AROUND 135 AM 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.

&&

LAT...LON 3974 7500 3991 7507 3992 7505 4006 7454
      3985 7443
TIME...MOT...LOC 0501Z 253DEG 29KT 3985 7491

$$

IOVINO
1 follow-up statement
105 
WWUS51 KPHI 280522
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
122 AM EDT MON JUL 28 2014

NJC007-280531-
/O.CAN.KPHI.SV.W.0149.000000T0000Z-140728T0545Z/
CAMDEN NJ-
122 AM EDT MON JUL 28 2014

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

THE SEVERE THUNDERSTORM HAS MOVED INTO BURLINGTON COUNTY. AS A 
RESULT, THE WARNING IS NO LONGER IN EFFECT FOR CAMDEN COUNTY.

LAT...LON 3978 7477 3998 7482 4006 7454 3985 7443
TIME...MOT...LOC 0521Z 253DEG 29KT 3990 7471

$$

NJC005-280545-
/O.CON.KPHI.SV.W.0149.000000T0000Z-140728T0545Z/
BURLINGTON NJ-
122 AM EDT MON JUL 28 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 AM EDT
FOR CENTRAL BURLINGTON COUNTY...

AT 120 AM 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 LEISURETOWNE...MOVING EAST AT 35 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  PRESIDENTIAL LAKES...BROWNS MILLS...FORT DIX AND 7 MILES SOUTH OF
  WRIGHTSTOWN BY 135 AM EDT...
  COUNTRY LAKE ESTATES AND 8 MILES SOUTH OF MCGUIRE AFB BY 140 AM
  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.

LAT...LON 3978 7477 3998 7482 4006 7454 3985 7443
TIME...MOT...LOC 0521Z 253DEG 29KT 3990 7471

$$

IOVINO

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 10:56 PM EDTSpecial Weather StatementPHIWarren34 min
Jul 27, 11:28 PM EDTSpecial Weather StatementPHIMercer62 min
Jul 27, 11:32 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester, Salem58 min
Jul 28, 12:35 AM EDTSpecial Weather StatementPHICamden, Gloucester, Mercer, Middlesex, Monmouth, Salem85 min
Jul 28, 12:59 AM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester, Salem4 hr
Jul 28, 1:26 AM EDTSpecial Marine WarningPHI49 min
Jul 28, 1:45 AM EDTAreal Flood AdvisoryPHIMonmouth, Ocean4 hr
Jul 28, 2:04 AM EDTSpecial Weather StatementPHIMonmouth, Ocean56 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2014Every 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.