Alert archive / Louisiana / Tornado Warnings in 2004

Tornado Warning 47, NWS New Orleans, LA

November 24, 2004Jefferson Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Nov 24, 2004, 5:00 AM CST for Jefferson Parish, Louisiana. It was in force for 60 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
Nov 24, 2004, 5:00 AM CST (11:00 UTC)
Expired
Nov 24, 2004, 6:00 AM CST
In force
60 min
Issued by
NWS New Orleans, LA
Area
Counties, with a storm outline in the text

County Jefferson Parish, LA

The watch it was issued in

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

IssuedProductOfficeLasted
Nov 23, 11:00 PM CSTSevere Thunderstorm WatchSPC7 hr
Nov 24, 2:50 AM CSTTornado WatchSPC3 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 11.0 hours before the alert went out and 55 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 2004-11-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 866 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 2004-11-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 square meters per square second.1939587897Sfc1 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
866 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
805 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
118 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.6

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KLIX 241100
TORLIX
LAC051-241200-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
500 AM CST WED NOV 24 2004

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  JEFFERSON PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITIES OF...METAIRIE...MARRERO...KENNER...
  HARVEY...AVONDALE

* UNTIL 600 AM CST

* AT 458 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR BRIDGE
  CITY...OR ABOUT NEAR NEW ORLEANS...MOVING NORTHEAST AT 45 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  TERRYTOWN BY 505 AM CST

SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR
HALLWAY OR ROOM SUCH AS A CLOSET. STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 2988 9020 2998 9026 3002 9020 3002 9013
      2993 9014 2992 9013 2992 9006 2993 9004
      2989 9001 2984 9016

$$

17

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 23, 11:39 PM CSTSpecial Marine WarningLIX36 min
Nov 24, 12:12 AM CSTSpecial Marine WarningLIX18 min
Nov 24, 12:16 AM CSTTornado WarningLIXSaint Tammany29 min
Nov 24, 12:30 AM CSTSpecial Marine WarningLIX15 min
Nov 24, 12:46 AM CSTTornado WarningLIXSaint Tammany44 min
Nov 24, 1:48 AM CSTTornado WarningLIXTangipahoa, Washington27 min
Nov 24, 2:01 AM CSTSevere Thunderstorm WarningLIXPointe Coupee, West Feliciana59 min
Nov 24, 2:04 AM CSTTornado WarningLIXSaint Tammany, Tangipahoa26 min
Nov 24, 2:10 AM CSTTornado WarningLIXSaint James, Saint John the Baptist35 min
Nov 24, 2:19 AM CSTSpecial Marine WarningLIX26 min
Nov 24, 2:22 AM CSTSevere Thunderstorm WarningLIXEast Baton Rouge, East Feliciana, Iberville, West Baton Rouge68 min
Nov 24, 2:26 AM CSTTornado WarningLIXWashington34 min
Nov 24, 2:35 AM CSTTornado WarningLIXSaint Tammany, Washington40 min
Nov 24, 2:48 AM CSTSpecial Marine WarningLIX27 min
Nov 24, 2:48 AM CSTTornado WarningLIXLivingston27 min
Nov 24, 2:52 AM CSTSevere Thunderstorm WarningLIXSaint Helena, Tangipahoa53 min
Nov 24, 2:53 AM CSTTornado WarningLIXSaint John the Baptist, Saint Tammany, Tangipahoa37 min
Nov 24, 3:17 AM CSTSevere Thunderstorm WarningLIXLivingston58 min
Nov 24, 3:23 AM CSTSevere Thunderstorm WarningLIXAscension, Assumption52 min
Nov 24, 3:24 AM CSTTornado WarningLIXSaint Charles, Saint John the Baptist36 min
Nov 24, 3:33 AM CSTTornado WarningLIXSaint Tammany27 min
Nov 24, 3:38 AM CSTTornado WarningLIXWashington37 min
Nov 24, 3:40 AM CSTTornado WarningLIXAscension35 min
Nov 24, 3:41 AM CSTSpecial Marine WarningLIX34 min
Nov 24, 3:58 AM CSTSevere Thunderstorm WarningLIXLafourche, Saint James, Saint John the Baptist, Terrebonne62 min
Nov 24, 4:00 AM CSTSpecial Marine WarningLIX2 hr
Nov 24, 4:02 AM CSTSevere Thunderstorm WarningLIXSaint Tammany43 min
Nov 24, 4:06 AM CSTTornado WarningLIXJefferson, Saint Charles54 min
Nov 24, 4:13 AM CSTSevere Thunderstorm WarningLIXWashington32 min
Nov 24, 4:17 AM CSTTornado WarningLIXSaint Tammany58 min
Nov 24, 4:26 AM CSTTornado WarningLIXLafourche64 min
Nov 24, 4:27 AM CSTTornado WarningLIXJefferson, Orleans, Saint Bernard33 min
Nov 24, 4:32 AM CSTSpecial Marine WarningLIX118 min
Nov 24, 4:55 AM CSTTornado WarningLIXOrleans, Saint Tammany65 min
Nov 24, 5:04 AM CSTTornado WarningLIXPlaquemines56 min
Nov 24, 5:11 AM CSTSevere Thunderstorm WarningLIXSaint Bernard64 min
Nov 24, 5:15 AM CSTSpecial Marine WarningLIX2 hr
Nov 24, 5:29 AM CSTSpecial Marine WarningLIX2 hr
Nov 24, 5:34 AM CSTSevere Thunderstorm WarningLIXJefferson, Lafourche26 min
Nov 24, 6:03 AM CSTSevere Thunderstorm WarningLIXPlaquemines57 min
Nov 24, 7:01 AM CSTSevere Thunderstorm WarningLIXPlaquemines29 min
Nov 24, 7:15 AM CSTSpecial Marine WarningLIX2 hr
Nov 24, 7:15 AM CSTSpecial Marine WarningLIX2 hr
Nov 24, 9:00 AM CSTSpecial Marine WarningLIX60 min

Nearby

Tornado Warnings in Louisiana, 2004Every tornado warning in 2004Tornadoes in 2004

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.