Alert archive / New Jersey / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 58, NWS Philadelphia/Mount Holly

June 26, 2014Cape May County, Cumberland County, New Jersey; Kent County, New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 26, 2014, 12:12 AM EDT for Cape May County, Cumberland County, New Jersey; Kent County, New Castle County, Delaware. It was in force for 50 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, 2014, 12:12 AM EDT (04:12 UTC)
Expired
Jun 26, 2014, 1:02 AM EDT
In force
50 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Kent County, DE, New Castle County, DE, Cape May County, NJ, Cumberland County, NJ

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 4.2 hours before the alert went out and 147 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, Wallops Is Stn, VA at 00:00Z on 2014-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1145 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, Wallops Is Stn, VA at 00:00Z on 2014-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 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
1145 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
873 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
62 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.

968 
WUUS51 KPHI 260412
SVRPHI
DEC001-003-NJC009-011-260515-
/O.NEW.KPHI.SV.W.0058.140626T0412Z-140626T0515Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1212 AM EDT THU JUN 26 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN NEW CASTLE COUNTY IN NORTHERN DELAWARE...
  KENT COUNTY IN CENTRAL DELAWARE...
  WESTERN CAPE MAY COUNTY IN SOUTHERN NEW JERSEY...
  CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 115 AM EDT

* AT 1210 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS. THESE SEVERE STORMS EXTENDED FROM
  SMYRNA TO CHESWOLD TO FELTON...MOVING EAST AT 30 MPH. THESE STORMS
  ARE CAPABLE OF PRODUCING ONE INCH DIAMETER HAIL...AND DAMAGING
  WINDS IN EXCESS OF 60 MPH. 

* SEVERE THUNDERSTORMS WILL BE NEAR...
  RISING SUN AROUND 1220 AM EDT...
  WOODLAND BEACH AROUND 1225 AM EDT...
  BOWERS AROUND 1230 AM EDT...
  BIG STONE BEACH AROUND 1235 AM EDT...
  GREENWICH AROUND 1240 AM EDT...
  FAIRTON AND BRIDGETON AROUND 1250 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.

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.

&&

LAT...LON 3935 7573 3939 7551 3931 7542 3934 7537
      3941 7540 3948 7494 3942 7486 3932 7486
      3930 7482 3904 7485 3904 7494 3917 7491
      3921 7504 3917 7514 3934 7535 3930 7543
      3921 7538 3906 7539 3900 7532 3897 7568
TIME...MOT...LOC 0412Z 258DEG 28KT 3929 7559 3921 7556
          3902 7558

$$

FORECASTER: HEAVENER
2 follow-up statements
234 
WWUS51 KPHI 260438
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1238 AM EDT THU JUN 26 2014

DEC001-003-260448-
/O.CAN.KPHI.SV.W.0058.000000T0000Z-140626T0515Z/
NEW CASTLE DE-KENT DE-
1238 AM EDT THU JUN 26 2014

...THE SEVERE THUNDERSTORM WARNING FOR KENT AND SOUTHEASTERN NEW
CASTLE COUNTIES IS CANCELLED...

THE STORM HAS MOVED INTO NEW JERSEY.

LAT...LON 3904 7494 3912 7490 3917 7491 3921 7504
      3920 7511 3917 7514 3920 7518 3923 7518
      3929 7526 3929 7528 3934 7534 3933 7537
      3941 7540 3948 7494 3942 7486 3932 7486
      3930 7482 3904 7485
TIME...MOT...LOC 0438Z 258DEG 28KT 3933 7533 3925 7530
          3906 7532

$$

NJC009-011-260515-
/O.CON.KPHI.SV.W.0058.000000T0000Z-140626T0515Z/
CAPE MAY NJ-CUMBERLAND NJ-
1238 AM EDT THU JUN 26 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM EDT
FOR CUMBERLAND AND WESTERN CAPE MAY COUNTIES...

AT 1236 AM 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 GREENWICH TO 8 MILES WEST OF FORTESQUE TO 16 MILES
SOUTHWEST OF FORTESQUE...OR ALONG A LINE EXTENDING FROM 10 MILES
SOUTHWEST OF BRIDGETON TO 12 MILES NORTHEAST OF DOVER TO 12 MILES
SOUTHEAST OF DOVER...MOVING EAST AT 30 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  FAIRTON...BRIDGETON...NEWPORT AND FORTESQUE BY 1250 AM EDT...
  DIVIDING CREEK BY 100 AM EDT...
  MILLVILLE...PORT NORRIS...LAUREL LAKE AND BIVALVE BY 105 AM EDT...
  SOUTH VINELAND BY 110 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.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.

LAT...LON 3904 7494 3912 7490 3917 7491 3921 7504
      3920 7511 3917 7514 3920 7518 3923 7518
      3929 7526 3929 7528 3934 7534 3933 7537
      3941 7540 3948 7494 3942 7486 3932 7486
      3930 7482 3904 7485
TIME...MOT...LOC 0438Z 258DEG 28KT 3933 7533 3925 7530
          3906 7532

$$

HEAVENER
274 
WWUS51 KPHI 260502
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
102 AM EDT THU JUN 26 2014

NJC009-011-260512-
/O.CAN.KPHI.SV.W.0058.000000T0000Z-140626T0515Z/
CAPE MAY NJ-CUMBERLAND NJ-
102 AM EDT THU JUN 26 2014

...THE SEVERE THUNDERSTORM WARNING FOR CUMBERLAND AND WESTERN CAPE
MAY COUNTIES IS CANCELLED...

THE STORM HAS DROPPED BELOW SEVERE LIMITS.

LAT...LON 3904 7494 3912 7490 3917 7491 3921 7504
      3920 7511 3917 7514 3920 7518 3923 7518
      3929 7526 3929 7528 3934 7534 3933 7537
      3941 7540 3948 7494 3942 7486 3932 7486
      3930 7482 3904 7485
TIME...MOT...LOC 0502Z 258DEG 28KT 3937 7509 3929 7506
          3910 7508

$$

HEAVENER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 8:29 PM EDTAreal Flood AdvisoryPHIHunterdon, Morris, Somerset, Sussex, Warren4 hr
Jun 25, 11:29 PM EDTSpecial Weather StatementPHISalem76 min
Jun 26, 12:15 AM EDTSpecial Marine WarningPHI60 min
Jun 26, 1:01 AM EDTSpecial Weather StatementPHIAtlantic59 min
Jun 25, 10:17 PM EDTAreal Flood AdvisoryPHINew Castle3 hr
Jun 25, 11:55 PM EDTSpecial Weather StatementPHIKent65 min
Jun 26, 12:53 AM EDTAreal Flood AdvisoryPHIKent, Sussex3 hr
Jun 26, 2:21 AM EDTSpecial Weather StatementPHISussex54 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2014Severe Thunderstorm Warnings in Delaware, 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.