Alert archive / New Jersey / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 147, NWS Philadelphia/Mount Holly

September 23, 2003Burlington County, Camden County, Mercer County, New Jersey; Bucks County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 23, 2003, 8:01 AM EDT for Burlington County, Camden County, Mercer County, New Jersey; Bucks County, Pennsylvania. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Sep 23, 2003, 8:01 AM EDT (12:01 UTC)
Expired: Sep 23, 2003, 8:45 AM EDT
In force: 44 min
Issued by: NWS Philadelphia/Mount Holly
Area: Whole counties

Counties Burlington County, NJ, Camden County, NJ, Mercer County, NJ, Bucks County, PA

The radar

The Philadelphia radar (KDIX), 41 km from the middle of the area, began a volume at 12:05 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, 0.0 hours before the alert went out and 126 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: 705 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -118 m²/s²
0-3 km storm-relative helicity: -69 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 231201
SVRPHI
NJC005-007-021-PAC017-231245-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
800 AM EDT TUE SEP 23 2003

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN MERCER COUNTY IN CENTRAL NEW JERSEY.
  SOUTHEASTERN BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA.
  NORTH CENTRAL CAMDEN COUNTY IN SOUTHERN NEW JERSEY.
  NORTHWESTERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY.

* UNTIL 845 AM EDT.

* AT 753 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM... 3 MILES NORTH OF CHERRY HILL...MOVING
  NORTHEAST AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WILLINGBORO...BEVERLY AT 805 AM.
  MOUNT HOLLY...BRISTOL...LEVITTOWN...LANGHORNE AT 810 AM.
  FLORENCE...PEMBERTON...WOODSIDE AT 815 AM.
  BORDENTOWN AT 820 AM.

THIS STORM HAS THE POTENTIAL OF PRODUCING STRONG GUSTY WINDS IN 
EXCESS OF 50 MPH. SEVERE THUNDERSTORMS ALSO HAVE THE POTENTIAL TO 
PRODUCE TORNADOES.

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

$$

LAT...LON 4001 7497 3995 7509 3984 7498 4001 7457
          4034 7468 4026 7494

KRUZDLO

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 23, 7:13 AM EDT	Special Marine Warning	PHI		62 min
Sep 23, 7:54 AM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Somerset	36 min
Sep 23, 8:14 AM EDT	Tornado Warning	PHI	Burlington, Mercer	31 min
Sep 23, 8:21 AM EDT	Severe Thunderstorm Warning	PHI	Morris	39 min
Sep 23, 8:26 AM EDT	Tornado Warning	PHI	Middlesex, Monmouth	49 min
Sep 23, 8:33 AM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Somerset	27 min
Sep 23, 8:40 AM EDT	Special Marine Warning	PHI		65 min
Sep 23, 8:40 AM EDT	Special Marine Warning	PHI		65 min
Sep 23, 9:05 AM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Monmouth, Ocean	70 min
Sep 23, 9:48 AM EDT	Special Marine Warning	PHI		72 min
Sep 23, 9:48 AM EDT	Special Marine Warning	PHI		72 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2003 Severe Thunderstorm Warnings in Pennsylvania, 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.