Alert archive / Louisiana / Tornado Warnings in 2011
Tornado Warning 22, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at Mar 9, 2011, 5:30 AM CST 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
- Mar 9, 2011, 5:30 AM CST (11:30 UTC)
- Expired
- Mar 9, 2011, 6:00 AM CST
- In force
- 30 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
Counties Lafourche 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 |
|---|---|---|---|
| Mar 9, 2:39 AM CST | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 11.5 hours before the alert went out and 84 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
- 841 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 473 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 652 m²/s²
- 0-3 km storm-relative helicity
- 774 m²/s²
- Significant tornado parameter
- 4.0
- Supercell composite
- 24.8
The text
As transmitted, in the capitals the NWS used until 2016.
704
WFUS54 KLIX 091130
TORLIX
LAC057-089-093-095-091200-
/O.NEW.KLIX.TO.W.0022.110309T1130Z-110309T1200Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
530 AM CST WED MAR 9 2011
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
* TORNADO WARNING FOR...
NORTHWESTERN LAFOURCHE PARISH IN SOUTHEAST LOUISIANA...
NORTHWESTERN ST. CHARLES PARISH IN SOUTHEAST LOUISIANA...
THIS INCLUDES THE CITY OF HAHNVILLE...
SOUTHEASTERN ST. JAMES PARISH IN SOUTHEAST LOUISIANA...
SOUTHERN ST. JOHN THE BAPTIST PARISH IN SOUTHEAST LOUISIANA...
* UNTIL 600 AM CST
* AT 529 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES SOUTH OF
EDGARD...OR 9 MILES SOUTH OF RESERVE...MOVING EAST AT 45 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
NORCO...NEW SARPY AND DESTREHAN
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 800 AM CST WEDNESDAY MORNING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.
&&
LAT...LON 3008 9041 3006 9028 2992 9027 2980 9081
2990 9088
TIME...MOT...LOC 1130Z 249DEG 37KT 2995 9058
$$
CAB2 follow-up statements
955
WWUS54 KLIX 091139
SVSLIX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
539 AM CST WED MAR 9 2011
LAC057-093-091149-
/O.CAN.KLIX.TO.W.0022.000000T0000Z-110309T1200Z/
ST. JAMES LA-LAFOURCHE LA-
539 AM CST WED MAR 9 2011
...THE TORNADO WARNING FOR NORTHWESTERN LAFOURCHE AND SOUTHEASTERN
ST. JAMES PARISHES IS CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 AM CST WEDNESDAY MORNING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.
LAT...LON 2990 9052 2990 9064 2990 9065 2997 9067
2998 9066 3008 9041 3008 9039 3007 9038
3006 9028 2992 9027 2988 9052
TIME...MOT...LOC 1139Z 252DEG 32KT 2995 9052
$$
LAC089-095-091200-
/O.CON.KLIX.TO.W.0022.000000T0000Z-110309T1200Z/
ST. JOHN THE BAPTIST LA-ST. CHARLES LA-
539 AM CST WED MAR 9 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 AM CST FOR
NORTHWESTERN ST. CHARLES AND SOUTHERN ST. JOHN THE BAPTIST
PARISHES...
AT 533 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A TORNADO. THIS TORNADO WAS LOCATED 7 MILES SOUTH OF
EDGARD...OR 10 MILES SOUTH OF RESERVE...MOVING EAST AT 35 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
HAHNVILLE...NORCO...NEW SARPY AND DESTREHAN
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 800 AM CST WEDNESDAY MORNING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.
&&
LAT...LON 2990 9052 2990 9064 2990 9065 2997 9067
2998 9066 3008 9041 3008 9039 3007 9038
3006 9028 2992 9027 2988 9052
TIME...MOT...LOC 1139Z 252DEG 32KT 2995 9052
$$
BANNAN184
WWUS54 KLIX 091152
SVSLIX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
552 AM CST WED MAR 9 2011
LAC095-091202-
/O.CAN.KLIX.TO.W.0022.000000T0000Z-110309T1200Z/
ST. JOHN THE BAPTIST LA-
552 AM CST WED MAR 9 2011
...THE TORNADO WARNING FOR SOUTHERN ST. JOHN THE BAPTIST PARISH IS
CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 AM CST WEDNESDAY MORNING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.
LAT...LON 3003 9052 3004 9050 3004 9046 3008 9041
3008 9039 3007 9038 3006 9028 2995 9027
2991 9052
TIME...MOT...LOC 1152Z 242DEG 38KT 3004 9038
$$
LAC089-091200-
/O.CON.KLIX.TO.W.0022.000000T0000Z-110309T1200Z/
ST. CHARLES LA-
552 AM CST WED MAR 9 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 AM CST FOR
NORTHWESTERN ST. CHARLES PARISH...
AT 547 AM CST...A TORNADO WAS REPORTED. THIS TORNADO WAS LOCATED
NEAR NORCO...OR NEAR HAHNVILLE...MOVING NORTHEAST AT 45 MPH.
THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
INDICATED PARISH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 800 AM CST WEDNESDAY MORNING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.
&&
LAT...LON 3003 9052 3004 9050 3004 9046 3008 9041
3008 9039 3007 9038 3006 9028 2995 9027
2991 9052
TIME...MOT...LOC 1152Z 242DEG 38KT 3004 9038
$$
BANNANThe office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 8, 9:01 PM CST | River Flood Warning | LIX | Saint Tammany | 6 days |
| Mar 8, 9:15 PM CST | River Flood Warning | LIX | Saint Tammany | 24 hr |
| Mar 8, 9:15 PM CST | River Flood Warning | LIX | Saint Tammany | 24 hr |
| Mar 8, 9:20 PM CST | Areal Flood Warning | LIX | Tangipahoa | 12 hr |
| Mar 8, 9:30 PM CST | River Flood Warning | LIX | Saint Tammany | 20 hr |
| Mar 8, 9:30 PM CST | River Flood Warning | LIX | Saint Tammany | 37 hr |
| Mar 8, 9:32 PM CST | Areal Flood Warning | LIX | Saint Helena | 12 hr |
| Mar 8, 10:12 PM CST | River Flood Warning | LIX | Tangipahoa | 23 hr |
| Mar 8, 10:20 PM CST | River Flood Warning | LIX | Tangipahoa | 18 hr |
| Mar 8, 10:29 PM CST | River Flood Warning | LIX | Saint Helena | 23 hr |
| Mar 8, 10:29 PM CST | River Flood Warning | LIX | Livingston | 3 days |
| Mar 8, 10:32 PM CST | River Flood Warning | LIX | Saint Helena | 44 hr |
| Mar 8, 10:42 PM CST | River Flood Warning | LIX | East Baton Rouge | 22 hr |
| Mar 8, 10:42 PM CST | River Flood Warning | LIX | East Baton Rouge, Livingston | 3 days |
| Mar 8, 10:42 PM CST | River Flood Warning | LIX | East Baton Rouge | 3 days |
| Mar 8, 10:42 PM CST | River Flood Warning | LIX | Ascension, Livingston | 35 hr |
| Mar 9, 4:07 AM CST | Special Marine Warning | LIX | 53 min | |
| Mar 9, 4:34 AM CST | Tornado Warning | LIX | Saint Tammany | 41 min |
| Mar 9, 4:45 AM CST | Tornado Warning | LIX | Saint Tammany, Tangipahoa | 60 min |
| Mar 9, 4:53 AM CST | Flash Flood Warning | LIX | Livingston, Tangipahoa | 3 hr |
| Mar 9, 5:00 AM CST | Tornado Warning | LIX | Saint James, Saint John the Baptist | 60 min |
| Mar 9, 5:10 AM CST | Tornado Warning | LIX | Saint Tammany | 50 min |
| Mar 9, 5:37 AM CST | Special Marine Warning | LIX | 113 min | |
| Mar 9, 5:45 AM CST | Tornado Warning | LIX | Saint Tammany, Washington | 45 min |
| Mar 9, 6:23 AM CST | Areal Flood Advisory | LIX | Jefferson, Saint Charles | 112 min |
| Mar 9, 6:31 AM CST | Severe Thunderstorm Warning | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard, Saint Charles | 59 min |
| Mar 9, 6:35 AM CST | Tornado Warning | LIX | Orleans, Saint Tammany | 55 min |
| Mar 9, 6:50 AM CST | Special Marine Warning | LIX | 55 min | |
| Mar 9, 6:52 AM CST | Flash Flood Warning | LIX | Saint Tammany | 113 min |
| Mar 9, 7:06 AM CST | Flash Flood Warning | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard | 5 hr |
| Mar 9, 7:08 AM CST | Tornado Warning | LIX | Jefferson, Lafourche, Saint Charles | 37 min |
| Mar 9, 7:09 AM CST | Special Marine Warning | LIX | 36 min | |
| Mar 9, 7:13 AM CST | Tornado Warning | LIX | Jefferson, Lafourche | 47 min |
| Mar 9, 7:30 AM CST | Special Marine Warning | LIX | 30 min | |
| Mar 9, 7:38 AM CST | Severe Thunderstorm Warning | LIX | Jefferson, Lafourche, Orleans, Plaquemines, Saint Bernard | 52 min |
| Mar 9, 7:54 AM CST | Special Marine Warning | LIX | 36 min | |
| Mar 9, 7:58 AM CST | Small Craft Advisory | LIX | 20 hr | |
| Mar 9, 7:59 AM CST | Special Marine Warning | LIX | 2 hr | |
| Mar 9, 8:09 AM CST | Tornado Warning | LIX | Jefferson, Plaquemines | 36 min |
| Mar 9, 8:18 AM CST | Special Marine Warning | LIX | 27 min | |
| Mar 9, 8:22 AM CST | Special Marine Warning | LIX | 23 min | |
| Mar 9, 8:25 AM CST | Severe Thunderstorm Warning | LIX | Jefferson, Plaquemines, Saint Bernard | 65 min |
| Mar 9, 8:29 AM CST | Special Marine Warning | LIX | 2 hr | |
| Mar 9, 8:38 AM CST | Special Marine Warning | LIX | 97 min | |
| Mar 9, 9:49 AM CST | Special Marine Warning | LIX | 86 min | |
| Mar 9, 10:36 AM CST | Special Marine Warning | LIX | 54 min | |
| Mar 9, 11:09 AM CST | Special Marine Warning | LIX | 96 min | |
| Mar 9, 12:05 PM CST | River Flood Warning | LIX | Washington | 3 days |
| Mar 9, 12:36 PM CST | Special Marine Warning | LIX | 24 min | |
| Mar 9, 12:51 PM CST | Special Marine Warning | LIX | 84 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; the sounding from the Mesonet's radiosonde archive.