Alert archive / Louisiana / Tornado Warnings in 2011
Tornado Warning 165, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at Nov 16, 2011, 4:53 AM CST for Jefferson Parish, Orleans Parish, Saint Charles Parish, Louisiana. It was in force for 37 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 16, 2011, 4:53 AM CST (10:53 UTC)
- Expired
- Nov 16, 2011, 5:30 AM CST
- In force
- 37 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
Counties Jefferson Parish, LA, Orleans Parish, LA, Saint Charles 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 16, 2:49 AM CST | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 10.9 hours before the alert went out and 64 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
- 1734 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 661 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 8.1
The text
As transmitted, in the capitals the NWS used until 2016.
766
WFUS54 KLIX 161053
TORLIX
LAC051-071-089-161130-
/O.NEW.KLIX.TO.W.0165.111116T1053Z-111116T1130Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
453 AM CST WED NOV 16 2011
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
* TORNADO WARNING FOR...
NORTHWESTERN JEFFERSON PARISH IN SOUTHEAST LOUISIANA...
THIS INCLUDES THE CITIES OF...METAIRIE...MARRERO...KENNER...
AVONDALE...
SOUTHWESTERN ORLEANS PARISH IN SOUTHEAST LOUISIANA...
THIS INCLUDES THE CITY OF NEW ORLEANS...
CENTRAL ST. CHARLES PARISH IN SOUTHEAST LOUISIANA...
* UNTIL 530 AM CST
* AT 450 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR DES
ALLEMANDS...OR 10 MILES SOUTH OF HAHNVILLE...MOVING NORTHEAST AT 30
MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
DESTREHAN...WAGGAMAN...HARAHAN...WESTWEGO AND BRIDGE CITY
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 1000 AM CST WEDNESDAY MORNING
FOR SOUTHERN MISSISSIPPI. A TORNADO WATCH ALSO REMAINS IN EFFECT
UNTIL 1000 AM CST WEDNESDAY MORNING FOR SOUTHEAST LOUISIANA AND
SOUTHERN MISSISSIPPI.
&&
LAT...LON 2976 9037 2978 9043 2984 9048 2986 9049
3005 9025 3003 9017 3003 9011 3005 9003
2999 8998 2997 9001 2994 9001 2973 9036
TIME...MOT...LOC 1053Z 232DEG 28KT 2985 9035
$$3 follow-up statements
546
WWUS54 KLIX 161102
SVSLIX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
502 AM CST WED NOV 16 2011
LAC051-071-089-161130-
/O.CON.KLIX.TO.W.0165.000000T0000Z-111116T1130Z/
ST. CHARLES LA-ORLEANS LA-JEFFERSON LA-
502 AM CST WED NOV 16 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 AM CST FOR
NORTHWESTERN JEFFERSON...SOUTHWESTERN ORLEANS AND CENTRAL ST. CHARLES
PARISHES...
AT 456 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A TORNADO. THIS TORNADO WAS LOCATED NEAR BOUTTE...OR 9 MILES
WEST OF AVONDALE...MOVING NORTHEAST AT 30 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
WAGGAMAN...KENNER...NEW ORLEANS ARMSTRONG AIRPORT...HARAHAN...
WESTWEGO...BRIDGE CITY...MARRERO...METAIRIE...NEW ORLEANS AND
LAKEFRONT AIRPORT
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM
WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 AM CST WEDNESDAY MORNING
FOR SOUTHERN MISSISSIPPI. A TORNADO WATCH ALSO REMAINS IN EFFECT
UNTIL 1000 AM CST WEDNESDAY MORNING FOR SOUTHEAST LOUISIANA AND
SOUTHERN MISSISSIPPI.
&&
LAT...LON 2976 9037 2978 9043 2984 9048 2986 9049
3005 9025 3003 9017 3003 9011 3005 9003
2999 8998 2997 9001 2994 9001 2973 9036
TIME...MOT...LOC 1102Z 232DEG 28KT 2989 9029
$$841
WWUS54 KLIX 161110
SVSLIX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
510 AM CST WED NOV 16 2011
LAC089-161121-
/O.CAN.KLIX.TO.W.0165.000000T0000Z-111116T1130Z/
ST. CHARLES LA-
510 AM CST WED NOV 16 2011
...THE TORNADO WARNING FOR CENTRAL ST. CHARLES PARISH IS CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 AM CST WEDNESDAY MORNING
FOR SOUTHERN MISSISSIPPI. A TORNADO WATCH ALSO REMAINS IN EFFECT
UNTIL 1000 AM CST WEDNESDAY MORNING FOR SOUTHEAST LOUISIANA AND
SOUTHERN MISSISSIPPI.
LAT...LON 2988 9025 2998 9028 3003 9020 3003 9011
3005 9003 3003 9001 2988 9024
TIME...MOT...LOC 1111Z 234DEG 31KT 2995 9021
$$
LAC051-071-161130-
/O.CON.KLIX.TO.W.0165.000000T0000Z-111116T1130Z/
ORLEANS LA-JEFFERSON LA-
510 AM CST WED NOV 16 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 AM CST FOR
NORTHWESTERN JEFFERSON AND WEST CENTRAL ORLEANS PARISHES...
AT 509 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A TORNADO. THIS TORNADO WAS LOCATED NEAR WAGGAMAN...OR NEAR
KENNER...MOVING NORTHEAST AT 35 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BRIDGE
CITY...METAIRIE AND LAKEFRONT AIRPORT
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM
WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 AM CST WEDNESDAY MORNING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.
&&
LAT...LON 2988 9025 2998 9028 3003 9020 3003 9011
3005 9003 3003 9001 2988 9024
TIME...MOT...LOC 1111Z 234DEG 31KT 2995 9021
$$907
WWUS54 KLIX 161129
SVSLIX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
529 AM CST WED NOV 16 2011
LAC051-071-161139-
/O.EXP.KLIX.TO.W.0165.000000T0000Z-111116T1130Z/
ORLEANS LA-JEFFERSON LA-
529 AM CST WED NOV 16 2011
...THE TORNADO WARNING FOR NORTHWESTERN JEFFERSON AND WEST CENTRAL
ORLEANS PARISHES WILL EXPIRE AT 530 AM CST...
THE TORNADO HAS MOVED OVER LAKE PONTCHARTRAIN.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 AM CST WEDNESDAY MORNING
FOR SOUTHERN MISSISSIPPI. A TORNADO WATCH ALSO REMAINS IN EFFECT
UNTIL 1000 AM CST WEDNESDAY MORNING FOR SOUTHEAST LOUISIANA AND
SOUTHERN MISSISSIPPI.
LAT...LON 2988 9025 2998 9028 3003 9020 3003 9011
3005 9003 3003 9001 2988 9024
TIME...MOT...LOC 1129Z 234DEG 31KT 3004 9007
$$The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 16, 2:28 AM CST | Tornado Warning | LIX | Saint Helena, Tangipahoa | 47 min |
| Nov 16, 2:38 AM CST | Special Marine Warning | LIX | 52 min | |
| Nov 16, 3:33 AM CST | Tornado Warning | LIX | Livingston, Saint Helena, Tangipahoa | 42 min |
| Nov 16, 4:09 AM CST | Tornado Warning | LIX | Washington | 36 min |
| Nov 16, 4:18 AM CST | Tornado Warning | LIX | Jefferson, Saint Charles | 42 min |
| Nov 16, 4:52 AM CST | Tornado Warning | LIX | Lafourche, Terrebonne | 23 min |
| Nov 16, 4:57 AM CST | Special Marine Warning | LIX | 48 min | |
| Nov 16, 5:21 AM CST | Tornado Warning | LIX | Lafourche, Saint Charles | 39 min |
| Nov 16, 5:37 AM CST | Special Marine Warning | LIX | 23 min | |
| Nov 16, 6:15 AM CST | Severe Thunderstorm Warning | LIX | Saint Tammany | 60 min |
| Nov 16, 7:22 AM CST | Severe Thunderstorm Warning | LIX | Jefferson, Lafourche, Plaquemines | 68 min |
| Nov 16, 7:41 AM CST | Special Marine Warning | LIX | 2 hr | |
| Nov 16, 10:29 AM CST | Special Marine Warning | LIX | 61 min | |
| Nov 16, 10:30 AM CST | Special Marine Warning | LIX | 90 min | |
| Nov 16, 10:31 AM CST | Small Craft Advisory | LIX | 46 hr |
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.