Alert archive / New Jersey / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 45, NWS Philadelphia/Mount Holly

June 25, 2013Atlantic County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 25, 2013, 5:48 PM EDT for Atlantic County, New Jersey. It was in force for 57 min. 1 report 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: Jun 25, 2013, 5:48 PM EDT (21:48 UTC)
Expired: Jun 25, 2013, 6:45 PM EDT
In force: 57 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

County Atlantic County, NJ

The radar

The Philadelphia radar (KDIX), 56 km from the middle of the area, began a volume at 21:49 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	Remark
Jun 25, 5:50 PM EDT	TSTM WND DMG	Hammonton, NJ	A FEW TREES DOWN IN HAMMONTON.

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, 9.8 hours before the alert went out and 131 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: 378 J/kg
Mixed-layer CIN: -113 J/kg
Mixed-layer LCL: 1107 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 105 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.

745 
WUUS51 KPHI 252148
SVRPHI
NJC001-252245-
/O.NEW.KPHI.SV.W.0045.130625T2148Z-130625T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
548 PM EDT TUE JUN 25 2013

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

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

* UNTIL 645 PM EDT

* AT 545 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM. THE STORM WAS NEAR HAMMONTON...MOVING
  SOUTHEAST AT 30 MPH. THIS STORM IS CAPABLE OF PRODUCING DAMAGING
  WINDS IN EXCESS OF 60 MPH. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ELWOOD-MAGNOLIA AND MIZPAH AROUND 600 PM EDT...
  WEYMOUTH AROUND 605 PM EDT...
  EGG HARBOR CITY AND MAYS LANDING AROUND 615 PM EDT...
  POMONA AND PORT REPUBLIC AROUND 625 PM EDT...
  ENGLISH CREEK AROUND 630 PM EDT...
  ABSECON AND PLEASANTVILLE AROUND 635 PM EDT...

LAT...LON 3934 7443 3930 7453 3929 7457 3931 7459
      3929 7461 3930 7463 3929 7466 3958 7492
      3972 7475 3967 7466 3962 7465 3962 7462
      3957 7454 3956 7448 3949 7439 3946 7430
TIME...MOT...LOC 2147Z 313DEG 25KT 3966 7481

$$

FORECASTER: AMC

1 follow-up statement

951 
WWUS51 KPHI 252229
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
629 PM EDT TUE JUN 25 2013

NJC001-252239-
/O.CAN.KPHI.SV.W.0045.000000T0000Z-130625T2245Z/
ATLANTIC NJ-
629 PM EDT TUE JUN 25 2013

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

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

LAT...LON 3934 7443 3930 7453 3929 7457 3931 7459
      3929 7461 3930 7463 3929 7466 3958 7492
      3972 7475 3967 7466 3962 7465 3962 7462
      3957 7454 3956 7448 3949 7439 3946 7430
TIME...MOT...LOC 2229Z 313DEG 25KT 3944 7456

$$

FORECASTER: AMC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 24, 8:40 PM EDT	Severe Thunderstorm Warning	PHI	Burlington	35 min
Jun 24, 8:56 PM EDT	Special Weather Statement	PHI	Burlington, Ocean	64 min
Jun 24, 9:04 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Ocean	56 min
Jun 24, 9:15 PM EDT	Special Marine Warning	PHI		2 hr
Jun 25, 3:26 PM EDT	Heat Advisory	PHI	Burlington, Camden, Gloucester, Mercer	20 hr
Jun 25, 3:30 PM EDT	Special Weather Statement	PHI	Somerset	60 min
Jun 25, 3:36 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Warren	54 min
Jun 25, 4:32 PM EDT	Special Weather Statement	PHI	Middlesex	58 min
Jun 25, 4:37 PM EDT	Special Weather Statement	PHI	Camden, Gloucester, Salem	53 min
Jun 25, 4:49 PM EDT	Severe Thunderstorm Warning	PHI	Camden	26 min
Jun 25, 4:58 PM EDT	Special Weather Statement	PHI	Burlington, Ocean	62 min
Jun 25, 5:25 PM EDT	Special Weather Statement	PHI	Atlantic, Camden, Cumberland, Gloucester, Salem	65 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2013 Every severe thunderstorm warning in 2013

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.