Alert archive / Louisiana / Tornado Warnings in 2002

Tornado Warning 37, NWS New Orleans, LA

October 3, 2002Jefferson Parish, Orleans Parish, Saint Charles Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Oct 3, 2002, 4:29 AM CDT for Jefferson Parish, Orleans Parish, Saint Charles Parish, Louisiana. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 3, 2002, 4:29 AM CDT (09:29 UTC)
Expired
Oct 3, 2002, 11:45 AM CDT
In force
7 hr
Issued by
NWS New Orleans, LA
Area
Counties, with a storm outline in the text

Counties Jefferson Parish, LA, Orleans Parish, LA, Saint Charles Parish, LA

The watch it was issued in

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

IssuedProductOfficeLasted
Oct 2, 9:25 PM CDTTornado WatchSPC13 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 9.5 hours before the alert went out and 58 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, Slidell Radar S, LA at 00:00Z on 2002-10-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1165 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 00:00Z on 2002-10-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 square meters per square second.193958Sfc1 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
1165 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
655 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.3

Open this sounding in Storm Lab

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 2, 9:37 PM CDTTornado WarningLIXTerrebonne13 hr
Oct 3, 1:02 AM CDTTornado WarningLIXJefferson28 min
Oct 3, 4:06 AM CDTTornado WarningLIXJefferson, Saint Charles7 hr
Oct 3, 4:29 AM CDTTornado WarningLIXSaint Charles8 hr
Oct 3, 6:29 AM CDTFlash Flood WarningLIXSaint Tammany4 hr
Oct 3, 8:20 AM CDTTornado WarningLIXSaint Tammany, Washington4 hr
Oct 3, 9:50 AM CDTTornado WarningLIXAssumption3 hr
Oct 3, 10:46 AM CDTTornado WarningLIXLivingston, Tangipahoa29 min
Oct 3, 10:56 AM CDTTornado WarningLIXSaint Tammany34 min
Oct 3, 10:56 AM CDTTornado WarningLIXSaint Tammany, Washington6 days
Oct 3, 11:09 AM CDTTornado WarningLIXEast Feliciana22 days
Oct 3, 11:09 AM CDTTornado WarningLIXEast Feliciana, Saint Helena22 days
Oct 3, 10:46 AM CDTTornado WarningLIXHancock, Pearl River29 min
Oct 3, 11:28 AM CDTTornado WarningLIXHancock, Pearl River22 days
Oct 3, 12:16 PM CDTTornado WarningLIXHancock, Pearl River22 days
Oct 3, 12:18 PM CDTTornado WarningLIXHancock, Pearl River22 days
Oct 3, 3:48 PM CDTTornado WarningLIXHarrison22 days
Oct 3, 4:20 PM CDTTornado WarningLIXHarrison22 days
Oct 3, 4:24 PM CDTTornado WarningLIXHarrison22 days

Nearby

Tornado Warnings in Louisiana, 2002Every tornado warning in 2002Tornadoes in 2002

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.