Alert archive / New Jersey / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 75, NWS Philadelphia/Mount Holly

July 3, 2014Cumberland County, New Jersey; Kent County, Delaware

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 3, 2014, 12:41 AM EDT for Cumberland County, New Jersey; Kent 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: Jul 3, 2014, 12:41 AM EDT (04:41 UTC)
Expired: Jul 3, 2014, 1:31 AM EDT
In force: 50 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Kent County, DE, Cumberland County, NJ

The radar

The Dover AFB radar (KDOX), 40 km from the middle of the area, began a volume at 04:43 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 nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 4.7 hours before the alert went out and 139 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2489 J/kg
Mixed-layer CIN: -47 J/kg
Mixed-layer LCL: 1108 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 110 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.

773 
WUUS51 KPHI 030441
SVRPHI
DEC001-NJC011-030545-
/O.NEW.KPHI.SV.W.0075.140703T0441Z-140703T0545Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1241 AM EDT THU JUL 3 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN KENT COUNTY IN CENTRAL DELAWARE...
  CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 145 AM EDT

* AT 1237 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM. THE STORM WAS NEAR WYOMING...MOVING EAST AT 30
  MPH. THIS STORM IS CAPABLE OF PRODUCING ONE INCH DIAMETER HAIL...
  AND DAMAGING WINDS IN EXCESS OF 60 MPH. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BOWERS AROUND 1250 AM EDT...
  BIG STONE BEACH AROUND 1255 AM EDT...
  FORTESQUE AND NEWPORT AROUND 120 AM EDT...
  DIVIDING CREEK AROUND 130 AM EDT...
  PORT NORRIS AND BIVALVE AROUND 135 AM EDT...
  MAURICETOWN AND LEESBURG AROUND 140 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 SEVERE
THUNDERSTORM. WHEN THUNDER ROARS...MOVE INDOORS! REMEMBER...IF YOU
CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 3908 7557 3925 7562 3933 7545 3927 7540
      3928 7531 3934 7534 3933 7537 3935 7538
      3947 7508 3917 7491 3918 7502 3921 7504
      3920 7511 3917 7514 3929 7526 3927 7539
      3906 7539 3901 7532 3896 7541
TIME...MOT...LOC 0441Z 253DEG 28KT 3916 7555

$$

FORECASTER: HEAVENER

2 follow-up statements

557 
WWUS51 KPHI 030503
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
103 AM EDT THU JUL 3 2014

DEC001-030513-
/O.CAN.KPHI.SV.W.0075.000000T0000Z-140703T0545Z/
KENT DE-
103 AM EDT THU JUL 3 2014

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN KENT COUNTY IS 
CANCELLED...

LAT...LON 3918 7502 3921 7504 3921 7506 3920 7511
      3917 7514 3921 7518 3923 7518 3929 7526
      3929 7530 3934 7534 3933 7537 3935 7538
      3947 7508 3918 7491
TIME...MOT...LOC 0503Z 253DEG 28KT 3921 7534

$$

NJC011-030545-
/O.CON.KPHI.SV.W.0075.000000T0000Z-140703T0545Z/
CUMBERLAND NJ-
103 AM EDT THU JUL 3 2014

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

AT 100 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 11 MILES WEST OF
FORTESQUE...OR 9 MILES EAST OF DOVER...MOVING EAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  FORTESQUE...NEWPORT AND 6 MILES SOUTH OF CEDARVILLE BY 120 AM
  EDT...
  DIVIDING CREEK BY 130 AM EDT...
  PORT NORRIS...BIVALVE AND LAUREL LAKE BY 135 AM EDT...
  MAURICETOWN AND LEESBURG 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.

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 3918 7502 3921 7504 3921 7506 3920 7511
      3917 7514 3921 7518 3923 7518 3929 7526
      3929 7530 3934 7534 3933 7537 3935 7538
      3947 7508 3918 7491
TIME...MOT...LOC 0503Z 253DEG 28KT 3921 7534

$$

HEAVENER

619 
WWUS51 KPHI 030531
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
131 AM EDT THU JUL 3 2014

NJC011-030541-
/O.CAN.KPHI.SV.W.0075.000000T0000Z-140703T0545Z/
CUMBERLAND NJ-
131 AM EDT THU JUL 3 2014

...THE SEVERE THUNDERSTORM WARNING FOR CUMBERLAND COUNTY IS
CANCELLED...

THE STORM HAS MOVED NORTH OF THE WARNING AREA. THEREFORE...THE 
WARNING HAS BEEN CANCELLED.

LAT...LON 3918 7502 3921 7504 3921 7506 3920 7511
      3917 7514 3921 7518 3923 7518 3929 7526
      3929 7530 3934 7534 3933 7537 3935 7538
      3947 7508 3918 7491
TIME...MOT...LOC 0531Z 253DEG 28KT 3927 7507

$$

SFJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 8:07 PM EDT	Areal Flood Advisory	PHI	Burlington, Mercer, Middlesex, Monmouth, Ocean	4 hr
Jul 2, 8:08 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Cumberland, Gloucester, Salem	52 min
Jul 2, 8:19 PM EDT	Special Weather Statement	PHI	Mercer, Middlesex, Monmouth	56 min
Jul 2, 8:25 PM EDT	Flash Flood Warning	PHI	Burlington, Mercer, Middlesex, Monmouth, Somerset	4 hr
Jul 2, 8:33 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Middlesex, Monmouth, Ocean	57 min
Jul 2, 8:53 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester, Ocean, Salem	67 min
Jul 2, 8:59 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester, Monmouth, Ocean	4 hr
Jul 2, 9:54 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Ocean	44 min
Jul 2, 10:20 PM EDT	Special Marine Warning	PHI		55 min
Jul 2, 10:30 PM EDT	Special Weather Statement	PHI	Atlantic	60 min
Jul 2, 10:38 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden	112 min
Jul 2, 10:58 PM EDT	Special Weather Statement	PHI	Burlington	62 min
Jul 2, 11:17 PM EDT	Flash Flood Warning	PHI	Burlington	3 hr
Jul 3, 12:19 AM EDT	Special Marine Warning	PHI		116 min
Jul 3, 12:23 AM EDT	Special Marine Warning	PHI		67 min
Jul 3, 12:26 AM EDT	Special Marine Warning	PHI		64 min
Jul 3, 1:00 AM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Gloucester, Salem	45 min
Jul 3, 1:14 AM EDT	Special Marine Warning	PHI		61 min
Jul 3, 1:19 AM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 1 more	56 min
Jul 3, 1:52 AM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Ocean	4 hr
Jul 3, 1:56 AM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Ocean	53 min
Jul 3, 2:08 AM EDT	Special Marine Warning	PHI		67 min
Jul 3, 2:34 AM EDT	Special Weather Statement	PHI	Monmouth	56 min
Jul 3, 5:46 AM EDT	Small Craft Advisory	PHI		54 hr
Jul 3, 1:22 PM EDT	Special Weather Statement	PHI	Warren	38 min
Jul 3, 1:57 PM EDT	Tornado Warning	PHI	Warren	24 min
Jul 3, 2:23 PM EDT	Special Weather Statement	PHI	Sussex	52 min
Jul 3, 3:27 PM EDT	High Surf Advisory	PHI	Atlantic, Cape May, Monmouth, Ocean	41 hr
Jul 3, 4:26 PM EDT	Special Weather Statement	PHI	Warren	49 min
Jul 3, 5:00 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex	60 min
Jul 3, 5:21 PM EDT	Special Weather Statement	PHI	Sussex	54 min
Jul 3, 5:50 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	55 min
Jul 3, 6:17 PM EDT	Areal Flood Advisory	PHI	Sussex	4 hr
Jul 3, 6:38 PM EDT	Special Weather Statement	PHI	Warren	67 min
Jul 3, 6:42 PM EDT	Flash Flood Warning	PHI	Sussex	4 hr
Jul 3, 6:46 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester	44 min
Jul 3, 6:47 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Sussex, Warren	58 min
Jul 3, 7:02 PM EDT	Areal Flood Advisory	PHI	Sussex, Warren	4 hr
Jul 3, 7:05 PM EDT	Special Weather Statement	PHI	Hunterdon	55 min
Jul 3, 7:14 PM EDT	Special Weather Statement	PHI	Sussex	61 min
Jul 3, 7:20 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex, Morris, Somerset	55 min
Jul 3, 7:25 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Morris, Somerset, Warren	65 min
Jul 3, 7:29 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Middlesex, Monmouth, Ocean	61 min
Jul 3, 7:44 PM EDT	Flash Flood Warning	PHI	Mercer, Middlesex, Morris, Somerset	4 hr
Jul 2, 10:24 PM EDT	Special Weather Statement	PHI	New Castle	36 min
Jul 2, 11:47 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	58 min
Jul 3, 12:04 AM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	56 min
Jul 3, 12:34 AM EDT	Areal Flood Advisory	PHI	Kent, New Castle	3 hr
Jul 3, 6:21 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	39 min

Nearby

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