Alert archive / Louisiana / Tornado Warnings in 2011
Tornado Warning 70, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at Jul 27, 2011, 12:52 PM CDT for Orleans Parish, Saint Bernard Parish, Louisiana. It was in force for 23 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
- Jul 27, 2011, 12:52 PM CDT (17:52 UTC)
- Expired
- Jul 27, 2011, 1:15 PM CDT
- In force
- 23 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
Counties Orleans Parish, LA, Saint Bernard Parish, LA
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 5.9 hours before the alert went out and 38 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
- 1697 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 453 m above ground
- 0-6 km bulk shear
- 1 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- 2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
309
WFUS54 KLIX 271752
TORLIX
LAC071-087-271815-
/O.NEW.KLIX.TO.W.0070.110727T1752Z-110727T1815Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1252 PM CDT WED JUL 27 2011
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
* TORNADO WARNING FOR...
CENTRAL ORLEANS PARISH IN SOUTHEAST LOUISIANA...
THIS INCLUDES THE CITY OF EAST NEW ORLEANS...
WEST CENTRAL ST. BERNARD PARISH IN SOUTHEAST LOUISIANA...
THIS INCLUDES THE CITY OF CHALMETTE...
* UNTIL 115 PM CDT
* AT 1248 PM CDT...THE PUBLIC REPORTED A WATERSPOUT NORTH OF VIOLET
OVER THE MARSHES...MOVING WEST AT 10 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
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.
&&
LAT...LON 2991 8996 2990 9001 2996 9006 3005 9007
3004 9005 3006 9003 3005 9000 3008 8996
3003 8983 3000 8984 2995 8984 2994 8979
2983 8983
TIME...MOT...LOC 1751Z 109DEG 8KT 2995 8989
$$
98/SO1 follow-up statement
464
WWUS54 KLIX 271815
SVSLIX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
115 PM CDT WED JUL 27 2011
LAC071-087-271825-
/O.EXP.KLIX.TO.W.0070.000000T0000Z-110727T1815Z/
ORLEANS LA-ST. BERNARD LA-
115 PM CDT WED JUL 27 2011
...THE TORNADO WARNING FOR WEST CENTRAL ST. BERNARD AND CENTRAL
ORLEANS PARISHES HAS EXPIRED...
EYEWITNESSES REPORT THAT THE WATERSPOUT THAT PROMPTED THE WARNING
HAS DISSIPATED.
LAT...LON 2991 8996 2990 9001 2996 9006 3005 9007
3004 9005 3006 9003 3005 9000 3008 8996
3003 8983 3000 8984 2995 8984 2994 8979
2983 8983
TIME...MOT...LOC 1752Z 109DEG 8KT 2995 8989
$$
95/DMThe office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 6:35 AM CDT | Special Marine Warning | LIX | 40 min | |
| Jul 27, 1:45 PM CDT | Areal Flood Advisory | LIX | Saint Charles | 2 hr |
| Jul 27, 1:56 PM CDT | Areal Flood Advisory | LIX | Ascension, Livingston | 2 hr |
| Jul 27, 2:54 PM CDT | Flash Flood Warning | LIX | Jefferson | 3 hr |
| Jul 27, 3:29 PM CDT | Areal Flood Advisory | LIX | East Baton Rouge | 2 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.