Alert archive / New Jersey / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 14, NWS Philadelphia/Mount Holly

April 5, 2011Atlantic County, Cumberland County, Salem County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 5, 2011, 10:41 AM EDT for Atlantic County, Cumberland County, Salem County, New Jersey. It was in force for 19 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: Apr 5, 2011, 10:41 AM EDT (14:41 UTC)
Expired: Apr 5, 2011, 11:00 AM EDT
In force: 19 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Atlantic County, NJ, Cumberland County, NJ, Salem County, NJ

The radar

The Dover AFB radar (KDOX), 64 km from the middle of the area, began a volume at 14:40 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 2.7 hours before the alert went out and 77 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: 1186 m above ground
0-6 km bulk shear: 79 kt
0-1 km storm-relative helicity: 106 m²/s²
0-3 km storm-relative helicity: 133 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.

591 
WUUS51 KPHI 051441
SVRPHI
NJC001-011-033-051500-
/O.NEW.KPHI.SV.W.0014.110405T1441Z-110405T1500Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1041 AM EDT TUE APR 5 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEST CENTRAL ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...
  CENTRAL CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...
  THIS INCLUDES THE CITIES OF...VINELAND...MILLVILLE...
  EXTREME SOUTHEASTERN SALEM COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 1100 AM EDT

* AT 1037 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS.  THESE STORMS WERE LOCATED NEAR
  GREENWICH...OR ALONG A LINE EXTENDING FROM 15 MILES WEST OF
  MILLVILLE TO 15 MILES NORTHEAST OF DOVER...AND MOVING EAST AT 45
  MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  MILLVILLE AROUND 1055 AM EDT...
  SOUTH VINELAND...VINELAND AND CUMBERLAND AROUND 1100 AM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS SEVERE THUNDERSTORM MAY CONTAIN LITTLE OR NO LIGHTNING. DO NOT
WAIT FOR THUNDER BEFORE TAKING COVER. SEEK SHELTER IMMEDIATELY INSIDE
A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 3932 7534 3934 7535 3933 7536 3934 7538
      3935 7538 3941 7537 3952 7491 3945 7483
      3936 7483
TIME...MOT...LOC 1441Z 258DEG 38KT 3940 7529 3937 7529
          3933 7528

$$
DRAG

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 5, 5:01 AM EDT	Severe Thunderstorm Warning	PHI	Salem	74 min
Apr 5, 5:58 AM EDT	Special Weather Statement	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	62 min
Apr 5, 6:05 AM EDT	Special Weather Statement	PHI	Atlantic, Burlington, Camden, Gloucester, Monmouth, Ocean and 1 more	55 min
Apr 5, 6:30 AM EDT	Special Weather Statement	PHI	Hunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset and 1 more	60 min
Apr 5, 6:42 AM EDT	Special Weather Statement	PHI	Cape May, Cumberland	63 min
Apr 5, 7:05 AM EDT	Special Weather Statement	PHI	Morris	55 min
Apr 5, 7:07 AM EDT	Special Weather Statement	PHI	Burlington, Middlesex, Monmouth, Ocean	53 min
Apr 5, 8:55 AM EDT	Special Weather Statement	PHI	Hunterdon, Morris, Warren	65 min
Apr 5, 9:37 AM EDT	Special Weather Statement	PHI	Hunterdon, Morris, Salem, Somerset, Sussex, Warren	53 min
Apr 5, 10:16 AM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem	44 min
Apr 5, 10:20 AM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Cape May, Cumberland	40 min
Apr 5, 10:30 AM EDT	Special Weather Statement	PHI	Mercer, Middlesex, Monmouth, Morris, Somerset	60 min
Apr 5, 10:35 AM EDT	Special Marine Warning	PHI		55 min
Apr 5, 10:58 AM EDT	Special Weather Statement	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Middlesex and 2 more	92 min
Apr 5, 11:00 AM EDT	Severe Thunderstorm Warning	PHI	Burlington, Monmouth, Ocean	30 min
Apr 5, 11:09 AM EDT	Special Marine Warning	PHI		96 min
Apr 5, 11:45 AM EDT	Special Marine Warning	PHI		60 min
Apr 5, 2:57 PM EDT	Small Craft Advisory	PHI		27 hr

Nearby

Severe Thunderstorm Warnings in New Jersey, 2011 Every severe thunderstorm warning in 2011

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.