Alert archive / New Jersey / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 168, NWS Philadelphia/Mount Holly

November 6, 2014Atlantic County, Cape May County, Cumberland County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Nov 6, 2014, 4:53 PM EST for Atlantic County, Cape May County, Cumberland County, New Jersey. It was in force for 37 min. 3 reports 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: Nov 6, 2014, 4:53 PM EST (21:53 UTC)
Expired: Nov 6, 2014, 5:30 PM EST
In force: 37 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Atlantic County, NJ, Cape May County, NJ, Cumberland County, NJ

The radar

The Dover AFB radar (KDOX), 64 km from the middle of the area, began a volume at 21:52 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

Time	Report	Where
Nov 6, 5:25 PM EST	HAIL 0.25	Woodbine, NJ
Nov 6, 5:25 PM EST	MARINE TSTM WIND 41	Cape May, NJ
Nov 6, 5:40 PM EST	MARINE TSTM WIND 39	Ocean City, NJ

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 9.9 hours before the alert went out and 107 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 653 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 432 m²/s²
0-3 km storm-relative helicity: 743 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.

207 
WUUS51 KPHI 062153
SVRPHI
NJC001-009-011-062230-
/O.NEW.KPHI.SV.W.0168.141106T2153Z-141106T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
453 PM EST THU NOV 6 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CAPE MAY COUNTY IN SOUTHERN NEW JERSEY...
  ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...
  CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 530 PM EST

* AT 445 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM. THE STORM WAS NEAR FORTESQUE...MOVING EAST    
  AT 50 MPH. THIS STORM IS CAPABLE OF PRODUCING DAMAGING WIND GUSTS  
  OVER 60 MPH AND SMALL HAIL. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BIVALVE AND PORT NORRIS AROUND 500 PM EST...
  ELDORA AND GOSHEN AROUND 505 PM EST...
  DENNISVILLE AND WOODBINE AROUND 510 PM EST...
  SEAVILLE AND SEA ISLE CITY AROUND 515 PM EST...
  OCEAN CITY AND STRATHMERE AROUND 520 PM EST...
  LONGPORT AND MARGATE CITY AROUND 525 PM EST...

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 3923 7462 3913 7471 3910 7469 3899 7478
      3892 7491 3892 7494 3895 7498 3912 7490
      3916 7490 3918 7502 3921 7504 3918 7515
      3923 7518 3929 7526 3929 7529 3939 7534
      3945 7508 3960 7472 3948 7434 3941 7434
TIME...MOT...LOC 2152Z 260DEG 52KT 3917 7514

$$

FORECASTER:JJM

1 follow-up statement

825 
WWUS51 KPHI 062221
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
521 PM EST THU NOV 6 2014

NJC011-062231-
/O.CAN.KPHI.SV.W.0168.000000T0000Z-141106T2230Z/
CUMBERLAND NJ-
521 PM EST THU NOV 6 2014

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

THE STORM THAT PROMPTED THE WARNING HAS LEFT THE AREA. ADDITIONAL 
SHOWERS AND OCCASTIONAL THUNDERSTORMS ARE POSSIBLE THIS EVENING.

LAT...LON 3940 7435 3923 7462 3914 7470 3910 7469
      3905 7476 3899 7478 3893 7490 3893 7496
      3894 7498 3898 7497 3912 7490 3921 7493
      3925 7489 3956 7478 3952 7444 3948 7435
TIME...MOT...LOC 2221Z 256DEG 39KT 3922 7476

$$

NJC001-009-062230-
/O.CON.KPHI.SV.W.0168.000000T0000Z-141106T2230Z/
CAPE MAY NJ-ATLANTIC NJ-
521 PM EST THU NOV 6 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EST
FOR SOUTHERN ATLANTIC AND CAPE MAY COUNTIES...

AT 518 PM EST...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 NEAR WOODBINE...OR 11 MILES
WEST OF OCEAN CITY...MOVING EAST AT 45 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  MARMORA...BEESLEYS POINT...OCEAN CITY AND SOMERS POINT BY 530 PM
  EST...

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 3940 7435 3923 7462 3914 7470 3910 7469
      3905 7476 3899 7478 3893 7490 3893 7496
      3894 7498 3898 7497 3912 7490 3921 7493
      3925 7489 3956 7478 3952 7444 3948 7435
TIME...MOT...LOC 2221Z 256DEG 39KT 3922 7476

$$

ROBERTSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 6, 4:03 PM EST	Special Weather Statement	PHI	Cumberland	57 min
Nov 6, 4:46 PM EST	Special Weather Statement	PHI	Atlantic, Cape May	89 min
Nov 6, 4:50 PM EST	Special Marine Warning	PHI		25 min
Nov 6, 5:11 PM EST	Special Marine Warning	PHI		64 min
Nov 6, 5:37 PM EST	Special Weather Statement	PHI	Atlantic	53 min
Nov 6, 5:38 PM EST	Special Weather Statement	PHI	Atlantic	22 min
Nov 6, 6:01 PM EST	Special Weather Statement	PHI	Atlantic, Cape May
Nov 6, 6:06 PM EST	Special Weather Statement	PHI	Atlantic	4 min
Nov 6, 6:12 PM EST	Special Marine Warning	PHI		63 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.