Alert archive / New Jersey / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 28, NWS Philadelphia/Mount Holly

June 13, 20135 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 13, 2013, 5:47 PM EDT for 5 counties in New Jersey. It was in force for 58 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: Jun 13, 2013, 5:47 PM EDT (21:47 UTC)
Expired: Jun 13, 2013, 6:45 PM EDT
In force: 58 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Atlantic County, NJ, Camden County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ

The radar

The Dover AFB radar (KDOX), 73 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 13, 5:52 PM EDT	TSTM WND GST 60	Cedarville, NJ
Jun 13, 5:53 PM EDT	TSTM WND GST 63	Newport, NJ	SMALL TREE LIMBS DOWN
Jun 13, 6:00 PM EDT	TSTM WND GST 58	Millville, NJ	MEASURED WIND SPEED

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 89 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: 416 J/kg
Mixed-layer CIN: -188 J/kg
Mixed-layer LCL: 645 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 172 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.0

Open this sounding in Storm Lab

The text

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

977 
WUUS51 KPHI 132147
SVRPHI
NJC001-007-011-015-033-132245-
/O.NEW.KPHI.SV.W.0028.130613T2147Z-130613T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
547 PM EDT THU JUN 13 2013

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CAMDEN COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHEASTERN GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...
  ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHEASTERN SALEM COUNTY IN SOUTHERN NEW JERSEY...
  CUMBERLAND 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 GREENWICH...MOVING
  NORTHEAST AT 50 MPH. THIS STORM IS CAPABLE OF PRODUCING QUARTER
  SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  FAIRTON AND BRIDGETON AROUND 555 PM EDT...
  SEABROOK FARMS AROUND 600 PM EDT...
  MILLVILLE AND ROSENHAYN AROUND 605 PM EDT...
  VINELAND AND SOUTH VINELAND AROUND 610 PM EDT...
  BUENA AND NEWFIELD AROUND 615 PM EDT...
  MIZPAH AND DOROTHY AROUND 620 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS SEVERE THUNDERSTORM HAS A HISTORY OF PRODUCING WIND DAMAGE. 
DO NOT STAY OUTDOORS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
THURSDAY EVENING FOR SOUTHERN DELAWARE AND NORTHEASTERN MARYLAND.

&&

LAT...LON 3919 7517 3923 7518 3929 7526 3928 7529
      3934 7534 3933 7537 3935 7539 3943 7548
      3982 7494 3965 7465 3962 7465 3962 7462
      3954 7447
TIME...MOT...LOC 2147Z 243DEG 42KT 3934 7532

$$

NIERENBERG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 9:18 AM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem	57 min
Jun 13, 9:47 AM EDT	Areal Flood Advisory	PHI	Hunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset and 1 more	58 min
Jun 13, 9:58 AM EDT	Special Marine Warning	PHI		62 min
Jun 13, 10:03 AM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more	57 min
Jun 13, 10:26 AM EDT	Special Marine Warning	PHI		94 min
Jun 13, 10:43 AM EDT	Special Marine Warning	PHI		2 hr
Jun 13, 10:50 AM EDT	Severe Thunderstorm Warning	PHI	Cape May	55 min
Jun 13, 10:58 AM EDT	Special Marine Warning	PHI		62 min
Jun 13, 11:01 AM EDT	Special Weather Statement	PHI	Ocean	29 min
Jun 13, 11:27 AM EDT	Special Marine Warning	PHI		63 min
Jun 13, 4:46 PM EDT	Special Marine Warning	PHI		59 min
Jun 13, 4:56 PM EDT	Special Marine Warning	PHI		64 min
Jun 13, 5:26 PM EDT	Special Weather Statement	PHI	Cumberland	64 min
Jun 13, 5:27 PM EDT	Areal Flood Advisory	PHI	Atlantic, Cape May, Cumberland, Salem	4 hr
Jun 13, 5:38 PM EDT	Special Weather Statement	PHI	Atlantic	67 min
Jun 13, 5:40 PM EDT	Special Marine Warning	PHI		65 min
Jun 13, 5:51 PM EDT	Special Marine Warning	PHI		54 min
Jun 13, 5:56 PM EDT	Special Marine Warning	PHI		64 min
Jun 13, 6:17 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Cape May, Cumberland, Ocean	58 min
Jun 13, 6:31 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Camden, Gloucester, Ocean	4 hr
Jun 13, 6:40 PM EDT	Special Marine Warning	PHI		95 min
Jun 13, 7:50 PM EDT	Areal Flood Advisory	PHI	Mercer, Middlesex, Monmouth, Somerset	4 hr

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.