Alert archive / Louisiana / Tornado Warnings in 2005

Tornado Warning 97, NWS New Orleans, LA

September 23, 20054 parishes in Louisiana

NWS New Orleans, LA issued this tornado warning at Sep 23, 2005, 10:00 AM CDT for 4 parishes in Louisiana. It was in force for 30 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: Sep 23, 2005, 10:00 AM CDT (15:00 UTC)
Expired: Sep 23, 2005, 10:30 AM CDT
In force: 30 min
Issued by: NWS New Orleans, LA
Area: Counties, with a storm outline in the text

Counties Ascension Parish, LA, Saint Charles Parish, LA, Saint James Parish, LA, Saint John the Baptist 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
Sep 23, 9:55 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 3.0 hours before the alert went out and 97 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: 377 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 686 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 268 m²/s²
0-3 km storm-relative helicity: 298 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KLIX 231500
TORLIX
LAC005-089-093-095-231530-
/O.NEW.KLIX.TO.W.0097.050923T1500Z-050923T1530Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1000 AM CDT FRI SEP 23 2005

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  ASCENSION PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITY OF GONZALES
  ST. CHARLES PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITY OF HAHNVILLE
  ST. JAMES PARISH IN SOUTHEAST LOUISIANA
  ST. JOHN THE BAPTIST PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITIES OF...RESERVE...LAPLACE

* UNTIL 1030 AM CDT

* AT 957 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR NORCO...OR
  ABOUT NEAR HAHNVILLE...MOVING NORTHWEST AT 55 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  RESERVE AND EDGARD BY 1005 AM CDT
  GARYVILLE BY 1010 AM CDT
  GRAMERCY AND LUTCHER BY 1015 AM CDT
  SORRENTO BY 1025 AM CDT
  GONZALES...7 MILES SOUTHEAST OF PRAIRIEVILLE AND 7 MILES EAST OF
  GEISMER BY 1030 AM CDT

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CDT FRIDAY EVENING FOR
SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.

LAT...LON 3018 9106 3033 9099 3034 9089 3032 9083
      3019 9071 3022 9064 3010 9042 3005 9038
      3005 9035 2990 9043

$$

24

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 23, 9:52 AM CDT	Flash Flood Warning	LIX	Orleans, Saint Bernard	6 hr
Sep 23, 10:34 AM CDT	Tornado Warning	LIX	Ascension, Iberville, Saint James	26 min
Sep 23, 10:39 AM CDT	Tornado Warning	LIX	Assumption, Lafourche, Saint James	36 min
Sep 23, 10:44 AM CDT	Tornado Warning	LIX	Saint Charles, Saint James, Saint John the Baptist	31 min
Sep 23, 11:11 AM CDT	Tornado Warning	LIX	Orleans	19 min
Sep 23, 11:17 AM CDT	Tornado Warning	LIX	Terrebonne	28 min
Sep 23, 11:54 AM CDT	Tornado Warning	LIX	Ascension, East Baton Rouge, Iberville, Livingston, Saint John the Baptist	36 min
Sep 23, 1:00 PM CDT	Tornado Warning	LIX	Jefferson, Orleans, Plaquemines, Saint Charles	30 min
Sep 23, 1:24 PM CDT	Tornado Warning	LIX	East Baton Rouge, Livingston	36 min
Sep 23, 1:26 PM CDT	Tornado Warning	LIX	Ascension, Livingston	34 min
Sep 23, 2:09 PM CDT	Tornado Warning	LIX	Assumption, Lafourche, Saint James, Terrebonne	36 min
Sep 23, 2:21 PM CDT	Tornado Warning	LIX	Saint Tammany	24 min
Sep 23, 3:33 PM CDT	Tornado Warning	LIX	Lafourche, Saint James	27 min
Sep 23, 4:42 PM CDT	Tornado Warning	LIX	Livingston, Tangipahoa	33 min
Sep 23, 5:14 PM CDT	Tornado Warning	LIX	Livingston, Tangipahoa	31 min

Nearby

Tornado Warnings in Louisiana, 2005 Every tornado warning in 2005 Tornadoes in 2005

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.