Alert archive / Louisiana / Tornado Warnings in 2002

Tornado Warning 63, NWS New Orleans, LA

October 25, 2002Saint Charles Parish, Saint John the Baptist Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Oct 25, 2002, 6:49 PM CDT for Saint Charles Parish, Saint John the Baptist Parish, Louisiana. It was in force for 11 days. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Oct 25, 2002, 6:49 PM CDT (23:49 UTC)
Expired
Nov 5, 2002, 11:45 AM CST
In force
11 days
Issued by
NWS New Orleans, LA
Area
Counties, with a storm outline in the text

Counties Saint Charles Parish, LA, Saint John the Baptist Parish, LA

What was reported inside it

TimeReportWhereRemark
Nov 5, 9:50 AM CSTTornado F1St Rose, LAA tornado destroyed one mobile home and heavily damaged another. Four other mobile homes received minor damage. Power lines were also knocked down.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

IssuedProductOfficeLasted
Oct 25, 6:40 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.8 hours before the alert went out and 73 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 12:00Z on 2002-10-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 2002-10-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 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
13 J/kg
Mixed-layer CIN
-230 J/kg
Mixed-layer LCL
696 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
153 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 25, 5:06 PM CDTSevere Thunderstorm WarningLIXWashington54 min
Oct 25, 5:15 PM CDTTornado WarningLIXSaint James30 min
Oct 25, 5:15 PM CDTTornado WarningLIXAscension, Saint James30 min
Oct 25, 5:15 PM CDTTornado WarningLIXAssumption30 min
Oct 25, 6:20 PM CDTTornado WarningLIXLafourche11 days
Oct 25, 6:30 PM CDTTornado WarningLIXSaint Charles11 days
Oct 25, 6:32 PM CDTSpecial Marine WarningLIX58 min
Oct 25, 6:49 PM CDTTornado WarningLIXSaint John the Baptist26 min
Oct 25, 5:56 PM CDTTornado WarningLIXPearl River11 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.