Alert archive / New Jersey / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 39, NWS Philadelphia/Mount Holly

July 6, 2003Atlantic County, Cape May County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 6, 2003, 12:55 AM EDT for Atlantic County, Cape May County, New Jersey. It was in force for 65 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: Jul 6, 2003, 12:55 AM EDT (04:55 UTC)
Expired: Jul 6, 2003, 2:00 AM EDT
In force: 65 min
Issued by: NWS Philadelphia/Mount Holly
Area: Counties, with a storm outline in the text

Counties Atlantic County, NJ, Cape May County, NJ

The radar

The Philadelphia radar (KDIX), 68 km from the middle of the area, began a volume at 04:58 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, 4.9 hours before the alert went out and 173 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: 1511 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1011 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 72 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.

689 
WUUS51 KPHI 060455
SVRPHI
NJC001-009-060600-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1255 AM EDT SUN JUL 6 2003

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

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

* UNTIL 200 AM EDT.

* AT 1253 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM... 7 MILES WEST OF ESTELL MANOR...MOVING EAST
  AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WOODBINE...FOLSOM...STONE HARBOR AT 100 AM.
  ESTELL MANOR...AVALON AT 105 AM.
  MAYS LANDING...CORBIN CITY...SEA ISLE CITY...HAMMONTON AT 110 AM.
  ELWOOD AT 115 AM.

FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER
RADIO...YOUR LOCAL RADIO OR TELEVISION STATION...OR YOUR CABLE
TELEVISION OUTLET.

LAT...LON 3952 7499 3943 7486 3890 7492 3947 7429
          3967 7479
$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 6, 12:16 AM EDT	Severe Thunderstorm Warning	PHI	Cumberland	59 min
Jul 6, 12:20 AM EDT	Special Marine Warning	PHI		55 min
Jul 6, 12:41 AM EDT	Special Marine Warning	PHI		49 min
Jul 6, 4:53 PM EDT	Severe Thunderstorm Warning	PHI	Salem	37 min
Jul 6, 5:34 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland	41 min
Jul 6, 5:51 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic	39 min
Jul 6, 5:55 PM EDT	Special Marine Warning	PHI		65 min
Jul 6, 6:05 PM EDT	Special Marine Warning	PHI		115 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2003 Every severe thunderstorm warning in 2003

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.