Alert archive / New Jersey / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 149, NWS Philadelphia/Mount Holly

September 17, 2005Gloucester County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 17, 2005, 9:53 PM EDT for Gloucester 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: Sep 17, 2005, 9:53 PM EDT (01:53 UTC)
Expired: Sep 17, 2005, 10:19 PM EDT
In force: 26 min
Issued by: NWS Philadelphia/Mount Holly
Area: Counties, with a storm outline in the text

County Gloucester County, NJ

The radar

The Philadelphia radar (KDIX), 64 km from the middle of the area, began a volume at 01:54 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

Wallops Is Stn, VA (KWAL), launched 00:00Z, 1.9 hours before the alert went out and 190 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: 1833 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 1123 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 42 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KPHI 180153
SVRPHI
NJC015-180230-
/O.NEW.KPHI.SV.W.0149.050918T0153Z-050918T0230Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
953 PM EDT SAT SEP 17 2005

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY

* UNTIL 1030 PM EDT

* AT 946 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL.  THIS
  STORM WAS LOCATED NEAR CLAYTON...OR ABOUT 10 MILES NORTHWEST OF
  VINELAND...AND MOVING EAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  VICTORY LAKES BY 1000 PM EDT

LAT...LON 3971 7514 3959 7512 3956 7505 3952 7498
      3954 7496 3960 7490 3968 7493

$$

MPD

1 follow-up statement

000 
WWUS51 KPHI 180219
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1018 PM EDT SAT SEP 17 2005

NJC015-180228-
/O.CAN.KPHI.SV.W.0149.000000T0000Z-050918T0230Z/
GLOUCESTER NJ-
1018 PM EDT SAT SEP 17 2005

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GLOUCESTER COUNTY
IS CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED AWAY AND NO LONGER 
POSE A SEVERE WEATHER THREAT TO THE LOCAL AREA. THE STORMS ALSO HAVE 
WEAKENED SOMEWHAT.


LAT...LON 3971 7514 3959 7512 3956 7505 3952 7498
      3954 7496 3960 7490 3968 7493

$$

MPD

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 17, 8:32 PM EDT	Severe Thunderstorm Warning	PHI	Burlington	43 min
Sep 17, 11:07 PM EDT	Special Marine Warning	PHI		53 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2005 Every severe thunderstorm warning in 2005

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.