Alert archive / New Jersey / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 34, NWS Philadelphia/Mount Holly

May 22, 2014Cape May County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 22, 2014, 6:14 PM EDT for Cape May County, New Jersey. It was in force for 31 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: May 22, 2014, 6:14 PM EDT (22:14 UTC)
Expired: May 22, 2014, 6:45 PM EDT
In force: 31 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

County Cape May County, NJ

The radar

The Dover AFB radar (KDOX), 57 km from the middle of the area, began a volume at 22:15 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.

Issued	Product	Office	Lasted
May 22, 2:18 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 10.2 hours before the alert went out and 135 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: 413 J/kg
Mixed-layer CIN: -101 J/kg
Mixed-layer LCL: 1075 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: -17 m²/s²
0-3 km storm-relative helicity: 32 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

359 
WUUS51 KPHI 222214
SVRPHI
NJC009-222245-
/O.NEW.KPHI.SV.W.0034.140522T2214Z-140522T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
614 PM EDT THU MAY 22 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

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

* UNTIL 645 PM EDT

* AT 610 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS. THESE SEVERE STORMS EXTENDED FROM
  WOODBINE TO GOSHEN TO BIVALVE...MOVING SOUTHEAST 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...
  CAPE MAY COURT HOUSE AND AVALON AROUND 620 PM EDT...
  RIO GRANDE AND GREEN CREEK AROUND 625 PM EDT...
  WILDWOOD AND NORTH WILDWOOD AROUND 630 PM EDT...
  WILDWOOD CREST AND CAPE MAY AROUND 635 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE WINDS OF MORE THAN 57 MPH...OR HAIL ONE
INCH OR LARGER.

VERY HEAVY RAIN WILL ALSO OCCUR WITH THIS LINE OF SEVERE
THUNDERSTORMS...WHICH COULD FLOOD LOW LYING AREAS QUICKLY AND COVER
ROADS WITH WATER. DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE
ROAD.

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 SOUTHERN
NEW JERSEY.

&&

LAT...LON 3893 7496 3896 7497 3899 7497 3912 7490
      3915 7490 3921 7492 3922 7487 3926 7484
      3914 7470 3910 7469 3905 7476 3899 7478
      3894 7486
TIME...MOT...LOC 2214Z 331DEG 36KT 3921 7477 3912 7480
          3914 7502

$$

FORECASTER:  DRAG

1 follow-up statement

344 
WWUS51 KPHI 222239
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
639 PM EDT THU MAY 22 2014

NJC009-222248-
/O.CAN.KPHI.SV.W.0034.000000T0000Z-140522T2245Z/
CAPE MAY NJ-
639 PM EDT THU MAY 22 2014

...THE SEVERE THUNDERSTORM WARNING FOR CAPE MAY COUNTY IS
CANCELLED...

THE STORM HAS WEAKENED TO BELOW SEVERE LIMITS...THEREFORE THE SEVERE
THUNDERSTORM WARNING HAS BEEN CANCELLED.

LAT...LON 3893 7496 3896 7497 3899 7497 3912 7490
      3915 7490 3921 7492 3922 7487 3926 7484
      3914 7470 3910 7469 3905 7476 3899 7478
      3894 7486
TIME...MOT...LOC 2238Z 331DEG 36KT 3900 7462 3891 7465
          3893 7487

$$

TFG

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 2:20 AM EDT	Special Weather Statement	PHI	Morris, Sussex	55 min
May 22, 9:58 AM EDT	Special Weather Statement	PHI	Ocean	62 min
May 22, 4:13 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Gloucester, Salem	62 min
May 22, 4:22 PM EDT	Severe Thunderstorm Warning	PHI	Mercer	38 min
May 22, 4:22 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Gloucester, Salem	53 min
May 22, 4:48 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Gloucester, Salem	42 min
May 22, 4:53 PM EDT	Special Weather Statement	PHI	Morris, Sussex	52 min
May 22, 4:57 PM EDT	Special Marine Warning	PHI		48 min
May 22, 5:28 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Cape May, Cumberland, Salem	47 min
May 22, 5:34 PM EDT	Special Weather Statement	PHI	Morris	56 min
May 22, 5:52 PM EDT	Special Marine Warning	PHI		83 min
May 22, 5:53 PM EDT	Special Marine Warning	PHI		67 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.