Alert archive / Louisiana / Tornado Warnings in 2012
Tornado Warning 38, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at May 9, 2012, 2:29 PM CDT for Jefferson Parish, Lafourche Parish, Louisiana. It was in force for 31 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
- May 9, 2012, 2:29 PM CDT (19:29 UTC)
- Expired
- May 9, 2012, 3:00 PM CDT
- In force
- 31 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
Counties Jefferson Parish, LA, Lafourche Parish, LA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 9, 2:40 PM CDT | TORNADO 1 | 5 Sw Grand Isle Cman, LA | WATERSPOUT MOVED ONSHORE. NWS SURVEY DETERMINED EF-1 DAMAGE WITH WINDS 86 TO 89 MPH. TOTAL LOSS OF MOBILE HOME ROOF FROM ONE STRUCTURE. SOME ROOF DEBRIS THROWN 30 YARDS TO NORTHEAST. PATH EXTENDED FROM JUST EAST OF RASPBERRY STREET ON NORTH SIDE TO JUST WEST O |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 7.5 hours before the alert went out and 112 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
- 1089 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 911 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 28 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.0
The text
As transmitted, in the capitals the NWS used until 2016.
684
WFUS54 KLIX 091929
TORLIX
LAC051-057-092000-
/O.NEW.KLIX.TO.W.0038.120509T1929Z-120509T2000Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
229 PM CDT WED MAY 9 2012
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
* TORNADO WARNING FOR...
EXTREME SOUTHEASTERN JEFFERSON PARISH IN SOUTHEAST LOUISIANA...
EXTREME SOUTHEASTERN LAFOURCHE PARISH IN SOUTHEAST LOUISIANA...
* UNTIL 300 PM CDT
* AT 225 PM CDT...NOAA PERSONNEL SPOTTED A WATERSPOUT OVER CAMINADA
BAY NEAR GRAND ISLE...MOVING SOUTHEAST AT 15 MPH.
* THE TORNADO WILL MOVE ACROSS CENTRAL GRAND ISLE.
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.
&&
LAT...LON 2923 9012 2938 9000 2935 8996 2933 8997
2928 8995 2930 8993 2929 8992 2928 8992
2924 8997 2922 9000 2918 9005
TIME...MOT...LOC 1928Z 307DEG 12KT 2925 8998
$$
24/RR2 follow-up statements
962
WWUS54 KLIX 091952
SVSLIX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
252 PM CDT WED MAY 9 2012
LAC057-092002-
/O.CAN.KLIX.TO.W.0038.000000T0000Z-120509T2000Z/
LAFOURCHE LA-
252 PM CDT WED MAY 9 2012
...THE TORNADO WARNING FOR EXTREME SOUTHEASTERN LAFOURCHE PARISH IS
CANCELLED...
LAT...LON 2920 9005 2925 9001 2925 8999 2927 8999
2928 9000 2929 9000 2930 8996 2928 8995
2929 8994 2928 8993 2924 8997 2920 9004
TIME...MOT...LOC 1952Z 307DEG 12KT 2920 8999
$$
LAC051-092000-
/O.CON.KLIX.TO.W.0038.000000T0000Z-120509T2000Z/
JEFFERSON LA-
252 PM CDT WED MAY 9 2012
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 PM CDT FOR EXTREME
SOUTHEASTERN JEFFERSON PARISH...
AT 248 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO ON THE
WEST SIDE OF GRAND ISLE...MOVING SOUTHEAST AT 15 MPH. DAMAGE HAS
BEEN REPORTED WITH THIS TORNADO.
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.
&&
LAT...LON 2920 9005 2925 9001 2925 8999 2927 8999
2928 9000 2929 9000 2930 8996 2928 8995
2929 8994 2928 8993 2924 8997 2920 9004
TIME...MOT...LOC 1952Z 307DEG 12KT 2920 8999
$$
24/RR006
WWUS54 KLIX 092005
SVSLIX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
305 PM CDT WED MAY 9 2012
LAC051-092014-
/O.EXP.KLIX.TO.W.0038.000000T0000Z-120509T2000Z/
JEFFERSON LA-
305 PM CDT WED MAY 9 2012
...THE TORNADO WARNING FOR EXTREME SOUTHEASTERN JEFFERSON PARISH HAS
EXPIRED...
THE STORM THAT PRODUCED THE TORNADO HAS MOVED OVER THE COASTAL
WATERS SOUTH OF GRAND ISLE. WATERSPOUTS ARE LIKELY WITH THIS STORM.
LAT...LON 2920 9005 2925 9001 2925 8999 2927 8999
2928 9000 2929 9000 2930 8996 2928 8995
2929 8994 2928 8993 2924 8997 2920 9004
TIME...MOT...LOC 1952Z 307DEG 12KT 2920 8999
$$
24/RRThe office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 11:45 AM CDT | Special Marine Warning | LIX | 30 min | |
| May 9, 12:02 PM CDT | Special Marine Warning | LIX | 28 min | |
| May 9, 12:04 PM CDT | Special Marine Warning | LIX | 56 min | |
| May 9, 12:06 PM CDT | Special Marine Warning | LIX | 54 min | |
| May 9, 12:23 PM CDT | Special Marine Warning | LIX | 67 min | |
| May 9, 12:27 PM CDT | Special Marine Warning | LIX | 33 min | |
| May 9, 12:30 PM CDT | Special Marine Warning | LIX | 60 min | |
| May 9, 12:49 PM CDT | Special Marine Warning | LIX | 56 min | |
| May 9, 12:52 PM CDT | Special Marine Warning | LIX | 53 min | |
| May 9, 12:55 PM CDT | Special Marine Warning | LIX | 21 min | |
| May 9, 1:38 PM CDT | Special Marine Warning | LIX | 67 min | |
| May 9, 2:31 PM CDT | Special Marine Warning | LIX | 29 min | |
| May 9, 3:09 PM CDT | Special Marine Warning | LIX | 51 min | |
| May 9, 3:19 PM CDT | Tornado Warning | LIX | Jefferson, Lafourche | 13 min |
| May 9, 4:00 PM CDT | Special Marine Warning | LIX | 30 min | |
| May 9, 5:45 PM CDT | Special Marine Warning | LIX | 45 min |
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.