Alert archive / New Jersey / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 24, NWS Philadelphia/Mount Holly

April 28, 2008Burlington County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 28, 2008, 6:19 PM EDT for Burlington County, New Jersey. It was in force for 26 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 28, 2008, 6:19 PM EDT (22:19 UTC)
Expired
Apr 28, 2008, 6:45 PM EDT
In force
26 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

County Burlington County, NJ

The radar

The Philadelphia radar (KDIX), 25 km from the middle of the area, began a volume at 22:21 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, 10.3 hours before the alert went out and 132 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-pSkew-T log-p diagram, Phillips Aaf/Abe, MD at 12:00Z on 2008-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Phillips Aaf/Abe, MD at 12:00Z on 2008-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 224 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
4 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
412 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
224 m²/s²
0-3 km storm-relative helicity
293 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.

000 
WUUS51 KPHI 282219
SVRPHI
NJC005-282245-
/O.NEW.KPHI.SV.W.0024.080428T2219Z-080428T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
619 PM EDT MON APR 28 2008

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 645 PM EDT

* AT 617 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED NEAR LUMBERTON...OR ABOUT 12
  MILES EAST OF CAMDEN...AND MOVING EAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LUMBERTON AND MOUNT HOLLY BY 625 PM EDT...
  6 MILES NORTH OF LEISURETOWNE BY 630 PM EDT...
  PEMBERTON AND JOBSTOWN BY 635 PM EDT...
  WRIGHTSTOWN BY 640 PM EDT...
  BROWNS MILLS AND 8 MILES NORTH OF PRESIDENTIAL LAKES BY 645 PM
  EDT...

IF YOU SEE THREATENING WEATHER, PLEASE SEEK SHELTER IMMEDIATELY.

LAT...LON 4011 7462 3988 7448 3981 7488 4000 7492
TIME...MOT...LOC 2219Z 248DEG 29KT 3995 7486

$$
 
TFG

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 4:57 PM EDTSpecial Marine WarningPHI48 min
Apr 28, 5:10 PM EDTSpecial Marine WarningPHI65 min
Apr 28, 5:22 PM EDTAreal Flood AdvisoryPHIBurlington, Camden, Cumberland, Gloucester, Mercer, Salem113 min
Apr 28, 6:39 PM EDTAreal Flood AdvisoryPHIMiddlesex, Monmouth, Ocean2 hr

Nearby

Severe Thunderstorm Warnings in New Jersey, 2008Every severe thunderstorm warning in 2008

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.