Alert archive / Louisiana / Tornado Warnings in 2011
Tornado Warning 30, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at Mar 29, 2011, 4:03 PM CDT for Ascension Parish, Saint James Parish, Saint John the Baptist Parish, Louisiana. It was in force for 27 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Mar 29, 2011, 4:03 PM CDT (21:03 UTC)
- Expired
- Mar 29, 2011, 4:30 PM CDT
- In force
- 27 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
Counties Ascension Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 29, 4:25 PM CDT | HAIL 1 | 5 N Lutcher, LA | BROADCAST MEDIA PASSED ON A VIEWER REPORT OF AT LEAST QUARTER SIZE HAIL WITH SOME LARGER STONES MIXED IN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 29, 3:17 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 9.1 hours before the alert went out and 90 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.
- Mixed-layer CAPE
- 7 J/kg
- Mixed-layer CIN
- -508 J/kg
- Mixed-layer LCL
- 621 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 267 m²/s²
- 0-3 km storm-relative helicity
- 248 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.4
The text
As transmitted, in the capitals the NWS used until 2016.
049
WFUS54 KLIX 292103
TORLIX
LAC005-093-095-292130-
/O.NEW.KLIX.TO.W.0030.110329T2103Z-110329T2130Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
403 PM CDT TUE MAR 29 2011
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
* TORNADO WARNING FOR...
EAST CENTRAL ASCENSION PARISH IN SOUTHEAST LOUISIANA...
NORTHEASTERN ST. JAMES PARISH IN SOUTHEAST LOUISIANA...
WEST CENTRAL ST. JOHN THE BAPTIST PARISH IN SOUTHEAST LOUISIANA...
* UNTIL 430 PM CDT
* AT 402 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER ST. JAMES
PARISH...OR 11 MILES SOUTHEAST OF GONZALES...MOVING NORTHEAST AT 20
MPH.
* THE TORNADO WILL BE NEAR...
RURAL ST. JAMES PARISH AT 420 PM CDT
RURAL ASCENSION PARISH AT 420 PM CDT
RURAL ST. JOHN THE BAPTIST PARISH AT 420 PM CDT
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
QUARTER SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.
THE SAFEST PLACE TO BE DURING A TORNADO IS UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS 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 1000 PM CDT TUESDAY EVENING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.
&&
LAT...LON 3023 9063 3022 9056 3021 9056 3020 9059
3019 9058 3012 9050 3004 9081 3011 9083
TIME...MOT...LOC 2103Z 243DEG 18KT 3011 9077
$$
24/RR1 follow-up statement
570
WWUS54 KLIX 292117
SVSLIX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
417 PM CDT TUE MAR 29 2011
LAC005-093-095-292130-
/O.CON.KLIX.TO.W.0030.000000T0000Z-110329T2130Z/
ST. JOHN THE BAPTIST LA-ST. JAMES LA-ASCENSION LA-
417 PM CDT TUE MAR 29 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR EAST
CENTRAL ASCENSION...NORTHEASTERN ST. JAMES AND WEST CENTRAL ST. JOHN
THE BAPTIST PARISHES...
AT 416 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A TORNADO. THIS TORNADO WAS LOCATED OVER ST. JAMES PARISH...
OR 11 MILES WEST OF RESERVE...MOVING EAST AT 20 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
QUARTER SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT TUESDAY EVENING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.
&&
LAT...LON 3013 9079 3021 9066 3023 9061 3022 9059
3020 9058 3019 9059 3018 9057 3011 9055
3006 9075
TIME...MOT...LOC 2117Z 253DEG 16KT 3009 9074
$$
24/RRThe office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 3:52 PM CDT | Severe Thunderstorm Warning | LIX | Ascension, Livingston | 40 min |
| Mar 29, 3:57 PM CDT | Severe Thunderstorm Warning | LIX | Ascension, East Baton Rouge, Iberville | 43 min |
| Mar 29, 4:25 PM CDT | Special Marine Warning | LIX | 35 min | |
| Mar 29, 4:28 PM CDT | Tornado Warning | LIX | Saint James, Saint John the Baptist | 32 min |
| Mar 29, 4:51 PM CDT | Areal Flood Advisory | LIX | Ascension, Saint James, Saint John the Baptist | 54 min |
| Mar 29, 4:56 PM CDT | Severe Thunderstorm Warning | LIX | Ascension, Iberville | 64 min |
| Mar 29, 4:56 PM CDT | Tornado Warning | LIX | Saint Charles, Saint John the Baptist | 34 min |
| Mar 29, 5:05 PM CDT | Severe Thunderstorm Warning | LIX | Saint James, Saint John the Baptist | 55 min |
| Mar 29, 5:14 PM CDT | Severe Thunderstorm Warning | LIX | East Baton Rouge, East Feliciana, Livingston, Saint Helena | 61 min |
| Mar 29, 5:16 PM CDT | Severe Thunderstorm Warning | LIX | Livingston, Saint Helena, Tangipahoa, Washington | 59 min |
| Mar 29, 5:25 PM CDT | Special Marine Warning | LIX | 65 min | |
| Mar 29, 5:26 PM CDT | Tornado Warning | LIX | Saint Charles, Saint John the Baptist | 34 min |
| Mar 29, 6:06 PM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Saint Charles | 24 min |
| Mar 29, 6:33 PM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Orleans | 27 min |
| Mar 29, 6:43 PM CDT | Areal Flood Advisory | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard, Saint Charles | 2 hr |
| Mar 29, 6:52 PM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard | 23 min |
Nearby
Tornado Warnings in Louisiana, 2011Every tornado warning in 2011Tornadoes in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.