Alert archive / New Jersey / Tornado Warnings in 2003

Tornado Warning 1, NWS Philadelphia/Mount Holly

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

NWS Philadelphia/Mount Holly issued this tornado warning at Sep 23, 2003, 8:14 AM EDT for Burlington County, Mercer County, New Jersey; Bucks County, Pennsylvania. It was in force for 31 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 23, 2003, 8:14 AM EDT (12:14 UTC)
Expired
Sep 23, 2003, 8:45 AM EDT
In force
31 min
Issued by
NWS Philadelphia/Mount Holly
Area
Counties, with a storm outline in the text

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

The radar

The Philadelphia radar (KDIX), 36 km from the middle of the area, began a volume at 12:16 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, 0.2 hours before the alert went out and 131 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 2003-09-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 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 2003-09-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -118 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
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 
WFUS51 KPHI 231214
TORPHI
NJC005-021-PAC017-231245-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
813 AM EDT TUE SEP 23 2003

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL MERCER COUNTY IN CENTRAL NEW JERSEY
  EXTREME SOUTHEASTERN BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA
  NORTH CENTRAL BURLINGTON COUNTY IN SOUTHERN NEW JERSEY

* UNTIL 845 AM EDT.

* AT 811 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 2 MILES SOUTH OF
  FLORENCE...MOVING EAST AT 40 MPH. THIS STORM COULD PRODUCE A
  TORNADO AT ANY TIME.

* THE TORNADO IS EXPECTED TO BE NEAR...
  BORDENTOWN...WRIGHTSTOWN AT 820 AM.

THIS WARNING REPLACES THE SEVERE THUNDERSTORM WARNING PREVIOUSLY
ISSUED FOR THE WARNED AREA.

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

LAT...LON 4009 7494 3996 7486 4004 7457 4020 7465

$$

KRUZDLO

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 23, 7:13 AM EDTSpecial Marine WarningPHI62 min
Sep 23, 7:54 AM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Somerset36 min
Sep 23, 8:01 AM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Mercer44 min
Sep 23, 8:21 AM EDTSevere Thunderstorm WarningPHIMorris39 min
Sep 23, 8:26 AM EDTTornado WarningPHIMiddlesex, Monmouth49 min
Sep 23, 8:33 AM EDTSevere Thunderstorm WarningPHIMiddlesex, Somerset27 min
Sep 23, 8:40 AM EDTSpecial Marine WarningPHI65 min
Sep 23, 8:40 AM EDTSpecial Marine WarningPHI65 min
Sep 23, 9:05 AM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Monmouth, Ocean70 min
Sep 23, 9:48 AM EDTSpecial Marine WarningPHI72 min
Sep 23, 9:48 AM EDTSpecial Marine WarningPHI72 min

Nearby

Tornado Warnings in New Jersey, 2003Tornado Warnings in Pennsylvania, 2003Every tornado warning in 2003Tornadoes 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.