Alert archive / Louisiana / Tornado Warnings in 2004

Tornado Warning 39, NWS New Orleans, LA

November 24, 2004Ascension Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Nov 24, 2004, 3:40 AM CST for Ascension Parish, Louisiana. It was in force for 35 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, 3:40 AM CST (09:40 UTC)
Expired: Nov 24, 2004, 4:15 AM CST
In force: 35 min
Issued by: NWS New Orleans, LA
Area: Counties, with a storm outline in the text

County Ascension Parish, LA

The watch it was issued in

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

Issued	Product	Office	Lasted
Nov 23, 11:00 PM CST	Severe Thunderstorm Watch	SPC	7 hr
Nov 24, 2:50 AM CST	Tornado Watch	SPC	3 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 9.7 hours before the alert went out and 121 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: 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 240940
TORLIX
LAC005-241015-

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

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  ASCENSION PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITIES OF...GONZALES...DONALDSONVILLE

* UNTIL 415 AM CST

* AT 337 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
  DONALDSONVILLE...MOVING NORTHEAST AT 30 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  GONZALES BY 350 AM CST
  SORRENTO BY 355 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 3011 9112 3007 9097 3020 9071 3035 9088

$$

17

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 23, 11:39 PM CST	Special Marine Warning	LIX		36 min
Nov 24, 12:12 AM CST	Special Marine Warning	LIX		18 min
Nov 24, 12:16 AM CST	Tornado Warning	LIX	Saint Tammany	29 min
Nov 24, 12:30 AM CST	Special Marine Warning	LIX		15 min
Nov 24, 12:46 AM CST	Tornado Warning	LIX	Saint Tammany	44 min
Nov 24, 1:48 AM CST	Tornado Warning	LIX	Tangipahoa, Washington	27 min
Nov 24, 2:01 AM CST	Severe Thunderstorm Warning	LIX	Pointe Coupee, West Feliciana	59 min
Nov 24, 2:04 AM CST	Tornado Warning	LIX	Saint Tammany, Tangipahoa	26 min
Nov 24, 2:10 AM CST	Tornado Warning	LIX	Saint James, Saint John the Baptist	35 min
Nov 24, 2:19 AM CST	Special Marine Warning	LIX		26 min
Nov 24, 2:22 AM CST	Severe Thunderstorm Warning	LIX	East Baton Rouge, East Feliciana, Iberville, West Baton Rouge	68 min
Nov 24, 2:26 AM CST	Tornado Warning	LIX	Washington	34 min
Nov 24, 2:35 AM CST	Tornado Warning	LIX	Saint Tammany, Washington	40 min
Nov 24, 2:48 AM CST	Special Marine Warning	LIX		27 min
Nov 24, 2:48 AM CST	Tornado Warning	LIX	Livingston	27 min
Nov 24, 2:52 AM CST	Severe Thunderstorm Warning	LIX	Saint Helena, Tangipahoa	53 min
Nov 24, 2:53 AM CST	Tornado Warning	LIX	Saint John the Baptist, Saint Tammany, Tangipahoa	37 min
Nov 24, 3:17 AM CST	Severe Thunderstorm Warning	LIX	Livingston	58 min
Nov 24, 3:23 AM CST	Severe Thunderstorm Warning	LIX	Ascension, Assumption	52 min
Nov 24, 3:24 AM CST	Tornado Warning	LIX	Saint Charles, Saint John the Baptist	36 min
Nov 24, 3:33 AM CST	Tornado Warning	LIX	Saint Tammany	27 min
Nov 24, 3:38 AM CST	Tornado Warning	LIX	Washington	37 min
Nov 24, 3:41 AM CST	Special Marine Warning	LIX		34 min
Nov 24, 3:58 AM CST	Severe Thunderstorm Warning	LIX	Lafourche, Saint James, Saint John the Baptist, Terrebonne	62 min
Nov 24, 4:00 AM CST	Special Marine Warning	LIX		2 hr
Nov 24, 4:02 AM CST	Severe Thunderstorm Warning	LIX	Saint Tammany	43 min
Nov 24, 4:06 AM CST	Tornado Warning	LIX	Jefferson, Saint Charles	54 min
Nov 24, 4:13 AM CST	Severe Thunderstorm Warning	LIX	Washington	32 min
Nov 24, 4:17 AM CST	Tornado Warning	LIX	Saint Tammany	58 min
Nov 24, 4:26 AM CST	Tornado Warning	LIX	Lafourche	64 min
Nov 24, 4:27 AM CST	Tornado Warning	LIX	Jefferson, Orleans, Saint Bernard	33 min
Nov 24, 4:32 AM CST	Special Marine Warning	LIX		118 min
Nov 24, 4:55 AM CST	Tornado Warning	LIX	Orleans, Saint Tammany	65 min
Nov 24, 5:00 AM CST	Tornado Warning	LIX	Jefferson	60 min
Nov 24, 5:04 AM CST	Tornado Warning	LIX	Plaquemines	56 min
Nov 24, 5:11 AM CST	Severe Thunderstorm Warning	LIX	Saint Bernard	64 min
Nov 24, 5:15 AM CST	Special Marine Warning	LIX		2 hr
Nov 24, 5:29 AM CST	Special Marine Warning	LIX		2 hr
Nov 24, 5:34 AM CST	Severe Thunderstorm Warning	LIX	Jefferson, Lafourche	26 min
Nov 24, 6:03 AM CST	Severe Thunderstorm Warning	LIX	Plaquemines	57 min
Nov 24, 7:01 AM CST	Severe Thunderstorm Warning	LIX	Plaquemines	29 min
Nov 24, 7:15 AM CST	Special Marine Warning	LIX		2 hr
Nov 24, 7:15 AM CST	Special Marine Warning	LIX		2 hr
Nov 24, 9:00 AM CST	Special Marine Warning	LIX		60 min

Nearby

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