Alert archive / New Jersey / Tornado Warnings in 2003

Tornado Warning 4, NWS Philadelphia/Mount Holly

October 27, 2003Mercer County, Middlesex County, New Jersey

NWS Philadelphia/Mount Holly issued this tornado warning at Oct 27, 2003, 3:46 PM EST for Mercer County, Middlesex County, New Jersey. 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 outline as issued.

The facts

Issued: Oct 27, 2003, 3:46 PM EST (20:46 UTC)
Expired: Oct 27, 2003, 4:30 PM EST
In force: 44 min
Issued by: NWS Philadelphia/Mount Holly
Area: Counties, with a storm outline in the text

Counties Mercer County, NJ, Middlesex County, NJ

The radar

The Philadelphia radar (KDIX), 47 km from the middle of the area, began a volume at 20:50 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

Brookhaven, NY (KOKX), launched 12:00Z, 8.8 hours before the alert went out and 150 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: 250 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 525 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 153 m²/s²
0-3 km storm-relative helicity: 166 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 272046
TORPHI
NJC021-023-272130-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
346 PM EST MON OCT 27 2003

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN MERCER COUNTY IN CENTRAL NEW JERSEY
  MIDDLESEX COUNTY IN NORTHERN NEW JERSEY

* UNTIL 430 PM EST.

* AT 344 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 8 MILES SOUTHWEST OF
  KENDALL PARK...MOVING NORTHEAST AT 40 MPH. THIS STORM COULD PRODUCE
  A TORNADO AT ANY TIME.

* THE TORNADO IS EXPECTED TO BE NEAR...
  DAYTON...KENDALL PARK...CLEARBROOK PARK AT 355 PM.
  NORTH BRUNSWICK...JAMESBURG AT 400 PM.
  EAST BRUNSWICK...NEW BRUNSWICK AT 405 PM.
  OLD BRIDGE AT 410 PM.

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

LAT...LON 4036 7465 4019 7460 4039 7427 4052 7441

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 27, 2:49 PM EST	Special Marine Warning	PHI		116 min
Oct 27, 3:23 PM EST	Tornado Warning	PHI	Hunterdon, Somerset	52 min
Oct 27, 3:29 PM EST	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Mercer and 4 more	61 min
Oct 27, 3:35 PM EST	Severe Thunderstorm Warning	PHI	Morris	40 min
Oct 27, 4:02 PM EST	Tornado Warning	PHI	Monmouth, Ocean	58 min
Oct 27, 4:14 PM EST	Special Marine Warning	PHI		91 min
Oct 27, 4:25 PM EST	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	50 min

Nearby

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