Alert archive / New Jersey / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 91, NWS Philadelphia/Mount Holly

July 3, 20145 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 3, 2014, 8:09 PM EDT for 5 counties in New Jersey. It was in force for 32 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
Jul 3, 2014, 8:09 PM EDT (00:09 UTC)
Expired
Jul 3, 2014, 8:41 PM EDT
In force
32 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Somerset County, NJ, Warren County, NJ

The radar

The Philadelphia radar (KDIX), 78 km from the middle of the area, began a volume at 00:11 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
Jul 3, 2:12 PM EDTSevere Thunderstorm WatchSPC10 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 0.2 hours before the alert went out and 131 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 2014-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1819 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 2014-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 square meters per square second.193958Sfc1 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
1819 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
524 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.4

Open this sounding in Storm Lab

The text

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

342 
WUUS51 KPHI 040009
SVRPHI
NJC023-025-027-035-041-040115-
/O.NEW.KPHI.SV.W.0091.140704T0009Z-140704T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
809 PM EDT THU JUL 3 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL WARREN COUNTY IN NORTHWEST NEW JERSEY...
  MORRIS COUNTY IN NORTHERN NEW JERSEY...
  NORTHERN SOMERSET COUNTY IN NORTHERN NEW JERSEY...
  MIDDLESEX COUNTY IN NORTHERN NEW JERSEY...
  NORTHERN MONMOUTH COUNTY IN CENTRAL NEW JERSEY...

* UNTIL 915 PM EDT

* AT 806 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS. THESE SEVERE STORMS EXTENDED FROM
  HACKETTSTOWN TO PEAPACK AND GLADSTONE TO DUNELLEN TO OLD BRIDGE...
  MOVING EAST AT 40 MPH. THESE STORMS ARE CAPABLE OF PRODUCING ONE
  INCH DIAMETER HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. 

* SEVERE THUNDERSTORMS WILL BE NEAR...
  NETCONG AND SUCCASUNNA AROUND 815 PM EDT...
  MOUNT ARLINGTON AND PERTH AMBOY AROUND 820 PM EDT...
  LINCROFT AND CARTERET AROUND 825 PM EDT...
  LAKE TELEMARK AND MOUNTAIN LAKES AROUND 830 PM EDT...
  HIGHLANDS AND EAST HANOVER AROUND 835 PM EDT...
  KINNELON AROUND 840 PM 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.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS LINE OF
SEVERE THUNDERSTORMS. WHEN THUNDER ROARS...MOVE INDOORS! REMEMBER...
IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY
LIGHTNING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
THURSDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW
JERSEY AND EASTERN PENNSYLVANIA.

&&

LAT...LON 4027 7438 4056 7457 4065 7472 4072 7472
      4074 7482 4088 7492 4090 7470 4102 7440
      4100 7430 4090 7427 4090 7433 4060 7444
      4061 7421 4047 7426 4043 7400 4048 7402
      4048 7401 4036 7396
TIME...MOT...LOC 0009Z 255DEG 35KT 4088 7477 4071 7464
          4060 7443 4038 7432

$$

FORECASTER: HEAVENER/VIVOLA
2 follow-up statements
361 
WWUS51 KPHI 040033
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
833 PM EDT THU JUL 3 2014

NJC041-040043-
/O.CAN.KPHI.SV.W.0091.000000T0000Z-140704T0115Z/
WARREN NJ-
833 PM EDT THU JUL 3 2014

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL WARREN COUNTY IS
CANCELLED...

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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
THURSDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW
JERSEY AND EASTERN PENNSYLVANIA.

LAT...LON 4030 7423 4058 7451 4090 7470 4102 7441
      4100 7430 4090 7427 4090 7433 4072 7440
      4068 7445 4066 7442 4060 7444 4061 7422
      4047 7426 4042 7402 4044 7400 4048 7402
      4036 7396
TIME...MOT...LOC 0033Z 255DEG 35KT 4094 7447 4077 7434
          4066 7413 4044 7402

$$

NJC023-025-027-035-040115-
/O.CON.KPHI.SV.W.0091.000000T0000Z-140704T0115Z/
MORRIS NJ-SOMERSET NJ-MIDDLESEX NJ-MONMOUTH NJ-
833 PM EDT THU JUL 3 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR NORTHEASTERN MONMOUTH...NORTHEASTERN MIDDLESEX...NORTHEASTERN
SOMERSET AND MORRIS COUNTIES...

AT 832 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM WHITE MEADOW LAKE TO FLORHAM PARK TO 7 MILES NORTHEAST
OF CARTERET TO LEONARDO...OR ALONG A LINE EXTENDING FROM 11 MILES
SOUTHWEST OF POMPTON LAKES TO MILLBURN TO BAYONNE TO SANDY HOOK...
MOVING EAST AT 40 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  KINNELON BY 840 PM EDT...
  RIVERDALE...BUTLER...PEQUANNOCK TOWNSHIP AND LINCOLN PARK BY 845 PM
  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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
THURSDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW
JERSEY AND EASTERN PENNSYLVANIA.

LAT...LON 4030 7423 4058 7451 4090 7470 4102 7441
      4100 7430 4090 7427 4090 7433 4072 7440
      4068 7445 4066 7442 4060 7444 4061 7422
      4047 7426 4042 7402 4044 7400 4048 7402
      4036 7396
TIME...MOT...LOC 0033Z 255DEG 35KT 4094 7447 4077 7434
          4066 7413 4044 7402

$$

HEAVENER/VIVOLA
861 
WWUS51 KPHI 040041
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
841 PM EDT THU JUL 3 2014

NJC023-025-027-035-040051-
/O.CAN.KPHI.SV.W.0091.000000T0000Z-140704T0115Z/
MORRIS NJ-SOMERSET NJ-MIDDLESEX NJ-MONMOUTH NJ-
841 PM EDT THU JUL 3 2014

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MONMOUTH...
NORTHEASTERN MIDDLESEX...NORTHEASTERN SOMERSET AND MORRIS COUNTIES IS
CANCELLED...

LAT...LON 4030 7423 4058 7451 4090 7470 4102 7441
      4100 7430 4090 7427 4090 7433 4072 7440
      4068 7445 4066 7442 4060 7444 4061 7422
      4047 7426 4042 7402 4044 7400 4048 7402
      4036 7396
TIME...MOT...LOC 0041Z 255DEG 35KT 4096 7437 4079 7424
          4068 7403 4046 7392

$$

HEAVENER/VIVOLA

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 3, 11:13 PM EDTSpecial Weather StatementPHICumberland62 min
Jul 4, 12:03 AM EDTSpecial Weather StatementPHIAtlantic57 min
Jul 4, 12:53 AM EDTSpecial Weather StatementPHIAtlantic, Burlington, Ocean52 min
Jul 4, 1:33 AM EDTSpecial Weather StatementPHIMonmouth, Ocean57 min
Jul 4, 1:34 AM EDTSpecial Weather StatementPHIMonmouth, Ocean56 min
Jul 4, 8:46 AM EDTSpecial Marine WarningPHI59 min
Jul 4, 9:32 AM EDTSpecial Marine WarningPHI118 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.