Alert archive / Louisiana / Tornado Warnings in 2002

Tornado Warning 10, NWS New Orleans, LA

April 8, 2002Lafourche Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Apr 8, 2002, 3:07 PM CDT for Lafourche Parish, Louisiana. It was in force for 23 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
Apr 8, 2002, 3:07 PM CDT (20:07 UTC)
Expired
Apr 8, 2002, 3:30 PM CDT
In force
23 min
Issued by
NWS New Orleans, LA
Area
Counties, with a storm outline in the text

County Lafourche Parish, LA

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 8, 12:30 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.1 hours before the alert went out and 105 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 2002-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 896 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 12:00Z on 2002-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 247 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
896 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
532 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
247 m²/s²
0-3 km storm-relative helicity
454 m²/s²
Significant tornado parameter
1.0
Supercell composite
10.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS54 KLIX 082007
TORNEW
LAC057-082030-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
305 PM CDT MON APR 8 2002

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  LAFOURCHE PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITIES OF...LAROSE...GALLIANO...CUT OFF

* UNTIL 330 PM CDT

* AT 245 PM CDT...SEVERAL WATERSPOUTS WERE REPORTED BY OFFICIALS NEAR
  CHAUVIN. 

  AT 300 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM PRODUCING A 
  TORNADO 8 MILES SOUTHWEST OF GALLIANO...MOVING NORTHEAST AT 45 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
   GALLIANO...GOLDEN MEADOW AT 310 PM CDT
   CUT OFF...LAROSE AT 315 PM CDT

SEEK SHELTER ON THE LOWEST FLOOR OF A BUILDING IN AN INTERIOR HALLWAY
OR ROOM SUCH AS A CLOSET OR BATHROOM.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE.

LAT...LON 2940 9020 2930 9033 2951 9046 2967 9028

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 8, 5:42 AM CDTSevere Thunderstorm WarningLIXEast Feliciana48 min
Apr 8, 12:04 PM CDTSevere Thunderstorm WarningLIXLivingston, Saint Helena, Tangipahoa26 min
Apr 8, 12:35 PM CDTTornado WarningLIXLivingston, Tangipahoa55 min
Apr 8, 1:07 PM CDTTornado WarningLIXAscension, Saint James, Saint John the Baptist38 min
Apr 8, 1:13 PM CDTSevere Thunderstorm WarningLIXSaint Tammany, Tangipahoa, Washington62 min
Apr 8, 1:19 PM CDTTornado WarningLIXSaint Tammany, Tangipahoa26 min
Apr 8, 1:37 PM CDTSpecial Marine WarningLIX113 min
Apr 8, 1:37 PM CDTSpecial Marine WarningLIX113 min
Apr 8, 1:45 PM CDTSevere Thunderstorm WarningLIXJefferson, Lafourche, Saint Charles, Saint James, Saint John the Baptist, Terrebonne45 min
Apr 8, 1:47 PM CDTTornado WarningLIXWashington43 min
Apr 8, 1:55 PM CDTTornado WarningLIXLafourche95 min
Apr 8, 1:55 PM CDTTornado WarningLIXTerrebonne110 min
Apr 8, 2:19 PM CDTSevere Thunderstorm WarningLIXSaint Tammany56 min
Apr 8, 2:31 PM CDTSevere Thunderstorm WarningLIXJefferson, Lafourche, Orleans, Plaquemines, Saint Bernard, Saint Charles and 1 more89 min
Apr 8, 2:35 PM CDTSpecial Marine WarningLIX115 min
Apr 8, 3:11 PM CDTTornado WarningLIXJefferson, Plaquemines49 min
Apr 8, 3:14 PM CDTSpecial Marine WarningLIX2 hr
Apr 8, 3:40 PM CDTTornado WarningLIXJefferson, Lafourche, Plaquemines2 hr
Apr 8, 4:53 PM CDTSevere Thunderstorm WarningLIXJefferson22 min
Apr 8, 5:38 PM CDTTornado WarningLIXPlaquemines90 days
Apr 8, 5:42 PM CDTSpecial Marine WarningLIX2 hr
Apr 8, 5:42 PM CDTSpecial Marine WarningLIX2 hr

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.