Alert archive / New Jersey / Tornado Warnings in 2001

Tornado Warning 5, NWS Philadelphia/Mount Holly

September 4, 2001Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this tornado warning at Sep 4, 2001, 7:11 PM EDT for Ocean County, New Jersey. It was in force for 34 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 4, 2001, 7:11 PM EDT (23:11 UTC)
Expired: Sep 4, 2001, 7:45 PM EDT
In force: 34 min
Issued by: NWS Philadelphia/Mount Holly
Area: Whole counties

County Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 16 km from the middle of the area, began a volume at 23:11 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Sep 4, 3:00 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 11.2 hours before the alert went out and 162 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: 851 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: -4 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.

733 
WFUS51 KPHI 042311
TORPHI
NJC029-042345-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
711 PM EDT TUE SEP 4 2001

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL OCEAN COUNTY IN SOUTHERN NEW JERSEY

* UNTIL 745 PM EDT.

* AT 706 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 4 MILES NORTHWEST OF
  FORKED RIVER...MOVING SOUTHEAST AT 25 MPH. THIS STORM COULD PRODUCE
  A TORNADO AT ANY TIME.

* THE TORNADO IS EXPECTED TO BE NEAR...
  BARNEGAT AT 720 PM.
  BARNEGAT LIGHT AT 725 PM.
  HARVEY CEDARS AT 730 PM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM TUESDAY
EVENING FOR NORTHERN DELAWARE AND NORTHEAST MARYLAND AND NORTHWESTERN
NEW JERSEY AND SOUTHEASTERN PENNSYLVANIA.

$$

LAT...LON 3997 7412 3987 7432 3953 7407 3965 7382

EBERWINE

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 4, 4:50 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon	40 min
Sep 4, 5:17 PM EDT	Severe Thunderstorm Warning	PHI	Somerset	43 min
Sep 4, 5:21 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester	39 min
Sep 4, 5:33 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex	42 min
Sep 4, 5:51 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	39 min
Sep 4, 6:08 PM EDT	Severe Thunderstorm Warning	PHI	Ocean	52 min
Sep 4, 6:38 PM EDT	Severe Thunderstorm Warning	PHI	Salem	52 min
Sep 4, 7:00 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland	60 min
Sep 4, 7:04 PM EDT	Severe Thunderstorm Warning	PHI	Ocean	56 min

Nearby

Tornado Warnings in New Jersey, 2001 Every tornado warning in 2001 Tornadoes in 2001

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.