Alert archive / New Jersey / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 61, NWS Philadelphia/Mount Holly

July 2, 2014Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 2, 2014, 3:30 PM EDT for Sussex County, New Jersey. It was in force for 60 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 2, 2014, 3:30 PM EDT (19:30 UTC)
Expired
Jul 2, 2014, 4:30 PM EDT
In force
60 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

County Sussex County, NJ

The radar

The Philadelphia radar (KDIX), 147 km from the middle of the area, began a volume at 19:30 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 2, 1:22 PM EDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 7.5 hours before the alert went out and 160 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 12:00Z on 2014-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1089 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 12:00Z on 2014-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 square meters per square second.1939Sfc1 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
1089 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
836 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

776 
WUUS51 KPHI 021930
SVRPHI
NJC037-022030-
/O.NEW.KPHI.SV.W.0061.140702T1930Z-140702T2030Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
330 PM EDT WED JUL 2 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN SUSSEX COUNTY IN NORTHWEST NEW JERSEY...

* UNTIL 430 PM EDT

* AT 327 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS. THESE SEVERE STORMS EXTENDED FROM
  UNIONVILLE TO PECKS POND...MOVING EAST AT 30 MPH. THESE STORMS ARE
  CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN
  EXCESS OF 60 MPH. 

* SEVERE THUNDERSTORMS WILL BE NEAR...
  VERNON VALLEY AND HIGHLAND LAKE AROUND 335 PM EDT...
  MONTAGUE AROUND 345 PM EDT...
  HIGH POINT AROUND 350 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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
WEDNESDAY EVENING FOR NORTHEASTERN PENNSYLVANIA. A SEVERE
THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 900 PM EDT WEDNESDAY
EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND
SOUTHEAST PENNSYLVANIA.

&&

LAT...LON 4135 7467 4121 7438 4121 7437 4113 7454
      4111 7496 4118 7489 4121 7487 4123 7487
      4129 7484 4135 7475 4136 7471
TIME...MOT...LOC 1930Z 248DEG 27KT 4128 7456 4126 7499

$$

FORECASTER:SFJ
1 follow-up statement
559 
WWUS51 KPHI 021952
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
352 PM EDT WED JUL 2 2014

NJC037-022030-
/O.CON.KPHI.SV.W.0061.000000T0000Z-140702T2030Z/
SUSSEX NJ-
352 PM EDT WED JUL 2 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR NORTHERN SUSSEX COUNTY...

AT 348 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM 14 MILES EAST OF HIGH POINT
TO MONTAGUE...OR ALONG A LINE EXTENDING FROM WARWICK TO MILFORD...
MOVING EAST AT 30 MPH.

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 700 PM EDT
WEDNESDAY EVENING FOR NORTHEASTERN PENNSYLVANIA. A SEVERE
THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 900 PM EDT WEDNESDAY
EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND
SOUTHEAST PENNSYLVANIA.

LAT...LON 4135 7467 4126 7449 4116 7490 4121 7487
      4123 7487 4129 7484 4135 7475 4136 7471
TIME...MOT...LOC 1952Z 248DEG 27KT 4134 7436 4132 7479

$$

SFJ

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 3:59 AM EDTSmall Craft AdvisoryPHI18 hr
Jul 2, 2:48 PM EDTSpecial Weather StatementPHISussex42 min
Jul 2, 3:36 PM EDTFlash Flood WatchPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more46 hr
Jul 2, 3:58 PM EDTAreal Flood AdvisoryPHISussex, Warren4 hr
Jul 2, 4:03 PM EDTSevere Thunderstorm WarningPHISussex, Warren57 min
Jul 2, 4:34 PM EDTFlash Flood WarningPHISussex4 hr
Jul 2, 5:01 PM EDTAreal Flood AdvisoryPHIMorris, Sussex, Warren3 hr
Jul 2, 5:08 PM EDTSpecial Weather StatementPHIHunterdon52 min
Jul 2, 5:23 PM EDTSevere Thunderstorm WarningPHIHunterdon67 min
Jul 2, 5:42 PM EDTAreal Flood AdvisoryPHIHunterdon, Morris, Somerset3 hr
Jul 2, 5:56 PM EDTSpecial Weather StatementPHIWarren49 min
Jul 2, 6:06 PM EDTSpecial Weather StatementPHISomerset24 min
Jul 2, 6:13 PM EDTFlash Flood WarningPHIHunterdon4 hr
Jul 2, 6:31 PM EDTSevere Thunderstorm WarningPHIHunterdon, Middlesex, Morris, Somerset42 min
Jul 2, 7:09 PM EDTAreal Flood AdvisoryPHIHunterdon, Mercer, Middlesex, Somerset4 hr
Jul 2, 7:15 PM EDTFlash Flood WarningPHIHunterdon, Middlesex, Somerset4 hr
Jul 2, 7:16 PM EDTSpecial Weather StatementPHIMiddlesex, Somerset59 min
Jul 2, 7:35 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Mercer55 min
Jul 2, 7:48 PM EDTSevere Thunderstorm WarningPHIGloucester, Salem27 min
Jul 2, 7:52 PM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester, Salem4 hr
Jul 2, 7:58 PM EDTSpecial Marine WarningPHI62 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.