Alert archive / Louisiana / Tornado Warnings in 2012
Tornado Warning 20, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at Mar 21, 2012, 9:49 AM CDT for 4 parishes in Louisiana. It was in force for 56 min. 3 reports 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 21, 2012, 9:49 AM CDT (14:49 UTC)
- Expired
- Mar 21, 2012, 10:45 AM CDT
- In force
- 56 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
Counties East Baton Rouge Parish, LA, East Feliciana Parish, LA, Livingston Parish, LA, Saint Helena Parish, LA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 21, 10:00 AM CDT | TSTM WND DMG | Walker, LA | SCATTERED TREES DOWN ACROSS PARISH. POSSIBLE TORNADO. |
| Mar 21, 10:05 AM CDT | TSTM WND DMG | 1 Ene Walker, LA | ROOF BLOWN OFF OF A HOUSE ON NORTH CORBIN ROAD. POSSIBLE TORNADO. |
| Mar 21, 10:05 AM CDT | TORNADO 1 | 4 Ne Walker, LA | WEAK TORNADO TOUCHED DOWN JUST SOUTH OF VARNADO ROAD AND TRACKED NORTH-NORTHWEST ACROSS NORTH CORBIN ROAD. A HOME LOST A PORTION OF THE ROOF AND SEVERAL TREES WERE SNAPPED ALONG THE TRACK. THE TORNADO LIFTED SOUTHWEST OF NORTH CORBIN ELEMENTARY SCHOOL. PATH LE |
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 21, 5:04 AM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 2.8 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.
- Mixed-layer CAPE
- 983 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 519 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 363 m²/s²
- 0-3 km storm-relative helicity
- 421 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 10.7
The text
As transmitted, in the capitals the NWS used until 2016.
125 WFUS54 KLIX 211449 TORLIX LAC033-037-063-091-211545- /O.NEW.KLIX.TO.W.0020.120321T1449Z-120321T1545Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 949 AM CDT WED MAR 21 2012 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A * TORNADO WARNING FOR... EASTERN EAST BATON ROUGE PARISH IN SOUTHEAST LOUISIANA... EAST CENTRAL EAST FELICIANA PARISH IN SOUTHEAST LOUISIANA... WESTERN LIVINGSTON PARISH IN SOUTHEAST LOUISIANA... THIS INCLUDES THE CITY OF DENHAM SPRINGS... SOUTHERN ST. HELENA PARISH IN SOUTHEAST LOUISIANA... THIS INCLUDES THE CITY OF GREENSBURG... * UNTIL 1045 AM CDT * AT 947 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES SOUTH OF DENHAM SPRINGS...MOVING NORTH AT 25 MPH. * THE TORNADO WILL BE NEAR... DENHAM SPRINGS BY 1000 AM CDT... WALKER BY 1005 AM CDT... WATSON BY 1015 AM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE. 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 NOON CDT WEDNESDAY FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI. && LAT...LON 3093 9087 3085 9062 3036 9089 3040 9104 TIME...MOT...LOC 1449Z 202DEG 23KT 3040 9095 $$ 24/RR
2 follow-up statements
389
WWUS54 KLIX 211519
SVSLIX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1019 AM CDT WED MAR 21 2012
LAC033-037-211529-
/O.CAN.KLIX.TO.W.0020.000000T0000Z-120321T1545Z/
EAST FELICIANA LA-EAST BATON ROUGE LA-
1019 AM CDT WED MAR 21 2012
...THE TORNADO WARNING FOR EASTERN EAST BATON ROUGE AND EAST CENTRAL
EAST FELICIANA PARISHES IS CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CDT WEDNESDAY EVENING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.
LAT...LON 3086 9064 3085 9062 3050 9081 3058 9095
3069 9088 3071 9085 3074 9084 3089 9075
TIME...MOT...LOC 1519Z 212DEG 29KT 3061 9081
$$
LAC063-091-211545-
/O.CON.KLIX.TO.W.0020.000000T0000Z-120321T1545Z/
ST. HELENA LA-LIVINGSTON LA-
1019 AM CDT WED MAR 21 2012
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1045 AM CDT FOR
NORTHWESTERN LIVINGSTON AND SOUTHERN ST. HELENA PARISHES...
AT 1014 AM CDT...A TORNADO WAS REPORTED. THIS TORNADO WAS LOCATED 20
MILES SOUTHWEST OF GREENSBURG...OR 10 MILES NORTHEAST OF DENHAM
SPRINGS...MOVING NORTHEAST AT 35 MPH.
THE TORNADO WILL BE NEAR...
GREENSBURG BY 1045 AM CDT...
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 600 PM CDT WEDNESDAY EVENING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.
&&
LAT...LON 3086 9064 3085 9062 3050 9081 3058 9095
3069 9088 3071 9085 3074 9084 3089 9075
TIME...MOT...LOC 1519Z 212DEG 29KT 3061 9081
$$
24/RR904
WWUS54 KLIX 211539
SVSLIX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1039 AM CDT WED MAR 21 2012
LAC063-091-211549-
/O.EXP.KLIX.TO.W.0020.000000T0000Z-120321T1545Z/
ST. HELENA LA-LIVINGSTON LA-
1039 AM CDT WED MAR 21 2012
...THE TORNADO WARNING FOR NORTHWESTERN LIVINGSTON AND SOUTHERN ST.
HELENA PARISHES WILL EXPIRE AT 1045 AM CDT...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CDT WEDNESDAY EVENING
FOR SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI.
LAT...LON 3086 9064 3085 9062 3050 9081 3058 9095
3069 9088 3071 9085 3074 9084 3089 9075
TIME...MOT...LOC 1539Z 210DEG 32KT 3078 9068
$$
24/RRThe office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 21, 7:34 AM CDT | Severe Thunderstorm Warning | LIX | East Baton Rouge, Iberville, Livingston, Pointe Coupee, West Baton Rouge, West Feliciana | 56 min |
| Mar 21, 8:30 AM CDT | Severe Thunderstorm Warning | LIX | Ascension, Assumption, East Baton Rouge, Iberville | 60 min |
| Mar 21, 8:32 AM CDT | Severe Thunderstorm Warning | LIX | East Baton Rouge, East Feliciana, Iberville, Pointe Coupee, West Baton Rouge, West Feliciana | 58 min |
| Mar 21, 8:45 AM CDT | Areal Flood Advisory | LIX | Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Lafourche and 7 more | 2 hr |
| Mar 21, 8:49 AM CDT | Tornado Warning | LIX | Ascension, Assumption, Iberville, Saint James | 38 min |
| Mar 21, 9:10 AM CDT | Severe Thunderstorm Warning | LIX | East Baton Rouge, East Feliciana, Saint Helena, West Feliciana | 65 min |
| Mar 21, 9:18 AM CDT | Severe Thunderstorm Warning | LIX | Ascension, Assumption, Lafourche, Saint James, Terrebonne | 57 min |
| Mar 21, 9:19 AM CDT | Tornado Warning | LIX | Ascension, East Baton Rouge, Iberville, Livingston | 26 min |
| Mar 21, 9:29 AM CDT | River Flood Warning | LIX | Saint Tammany, Washington | 19 days |
| Mar 21, 9:36 AM CDT | Severe Thunderstorm Warning | LIX | Ascension, Livingston, Saint Helena, Tangipahoa | 54 min |
| Mar 21, 10:05 AM CDT | River Flood Warning | LIX | Tangipahoa | 4 days |
| Mar 21, 10:07 AM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Lafourche, Saint Charles, Saint John the Baptist, Saint Tammany, Tangipahoa and 1 more | 53 min |
| Mar 21, 10:11 AM CDT | Special Marine Warning | LIX | 2 hr | |
| Mar 21, 10:16 AM CDT | Tornado Warning | LIX | Livingston, Saint John the Baptist, Tangipahoa | 44 min |
| Mar 21, 10:24 AM CDT | River Flood Warning | LIX | Saint Tammany | 49 hr |
| Mar 21, 10:24 AM CDT | Severe Thunderstorm Warning | LIX | Livingston, Saint Helena, Tangipahoa, Washington | 51 min |
| Mar 21, 10:33 AM CDT | Special Marine Warning | LIX | 117 min | |
| Mar 21, 11:01 AM CDT | Severe Thunderstorm Warning | LIX | Saint Tammany, Tangipahoa, Washington | 59 min |
| Mar 21, 11:05 AM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Lafourche, Saint Charles, Saint John the Baptist, Tangipahoa, Terrebonne | 55 min |
| Mar 21, 11:11 AM CDT | Small Craft Advisory | LIX | 5 hr | |
| Mar 21, 11:12 AM CDT | Areal Flood Advisory | LIX | Jefferson, Lafourche, Saint Charles, Saint John the Baptist, Saint Tammany, Tangipahoa and 2 more | 2 hr |
| Mar 21, 11:18 AM CDT | Severe Thunderstorm Warning | LIX | Tangipahoa, Washington | 57 min |
| Mar 21, 11:52 AM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Lafourche, Orleans, Plaquemines, Saint Bernard, Saint Charles | 53 min |
| Mar 21, 12:03 PM CDT | Severe Thunderstorm Warning | LIX | Saint Tammany, Washington | 57 min |
| Mar 21, 12:04 PM CDT | Special Marine Warning | LIX | 116 min | |
| Mar 21, 12:12 PM CDT | Tornado Warning | LIX | Saint Tammany | 36 min |
| Mar 21, 12:38 PM CDT | Tornado Warning | LIX | Jefferson, Orleans, Saint Bernard | 25 min |
| Mar 21, 12:55 PM CDT | Severe Thunderstorm Warning | LIX | Saint Tammany, Washington | 65 min |
| Mar 21, 1:16 PM CDT | Special Marine Warning | LIX | 119 min | |
| Mar 21, 1:46 PM CDT | Tornado Warning | LIX | Saint Tammany | 29 min |
| Mar 21, 1:57 PM CDT | Special Marine Warning | LIX | 33 min | |
| Mar 21, 2:05 PM CDT | Severe Thunderstorm Warning | LIX | Washington | 55 min |
| Mar 21, 3:13 PM CDT | Special Marine Warning | LIX | 2 hr | |
| Mar 21, 4:57 PM CDT | Areal Flood Advisory | LIX | Orleans, Plaquemines, Saint Bernard, Saint Tammany | 2 hr |
| Mar 21, 5:25 PM CDT | Flash Flood Warning | LIX | Orleans, Saint Bernard, Saint Tammany | 2 hr |
| Mar 21, 5:44 PM CDT | Special Marine Warning | LIX | 2 hr |
Nearby
Tornado Warnings in Louisiana, 2012Every tornado warning in 2012Tornadoes in 2012
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.