Alert archive / Louisiana / Tornado Warnings in 1993

Tornado Warning 1, NWS New Orleans, LA

February 11, 1993Tangipahoa Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Feb 11, 1993, 4:41 PM CST for Tangipahoa Parish, Louisiana. It was in force for 34 min.

The area

The counties it named.

The facts

Issued
Feb 11, 1993, 4:41 PM CST (22:41 UTC)
Expired
Feb 11, 1993, 5:15 PM CST
In force
34 min
Issued by
NWS New Orleans, LA
Area
Whole counties

County Tangipahoa Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 10.7 hours before the alert went out and 80 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.

Skew-T log-pSkew-T log-p diagram, Slidell Radar S, LA at 12:00Z on 1993-02-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 1993-02-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -99 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
-99 m²/s²
0-3 km storm-relative helicity
-194 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KNEW 112242
TORNEW
LAC105-112315-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
441 PM CST THU FEB 11 1993
 
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  515 PM CST
FOR RESIDENTS IN THE FOLLOWING PARISHES...
 
IN SOUTHEAST LOUISIANA
 
   ...CENTRAL TANGIPAHOA PARISH
 
AT 440 PM CST TWO FUNNEL CLOUDS WERE SIGHTED NEAR TICKFAW IN CENTRAL
TANGIPAHOA PARISH. WEATHER RADAR INDICATED THAT THE THUNDERSTORM
PRODUCING THE FUNNEL CLOUDS WAS MOVING TOWARE THE EAST AT ABOUT 35 MPH.
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.
 
 
 
&

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Feb 11, 4:01 PM CST, 40 minutes before
LAZ009-112300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BATON ROUGE LA
355 PM CST THU FEB 11 1993

...THUNDERSTORM OVER BATON ROUGE METROPOLITAN AREA PRODUCING SMALL
HAIL AND HEAVY RAIN...

RADAR AND PUBLIC REPORTS INDICATES THAT A THUNDERSTORM OVER THE BATON
ROUGE AREA IS PRODUCING SMALL HAIL AND HEAVY RAIN ACROSS THE SOUTHERN
PART OF THE CITY.  HAIL UP TO 1/2 INCHHAS BEEN REPORTED IN BRUSLY...
THE INTERSTATE 10/12 AREA AND JEFFERSON H6IGHWAY IN SOUTH BATON ROUGE.
THE THUNDERSTORM WAS MOVING TO THE EAST AROUND 25 MPH AND WILL CONTINUE
ACROSS PARTS OF LIVINGSTON PARISH FOR THE NEXT HOUR.

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 11, 4:32 PM CSTSevere Thunderstorm WarningLIXTangipahoa43 min
Feb 11, 5:10 PM CSTSevere Thunderstorm WarningLIXSaint Tammany50 min

Nearby

Tornado Warnings in Louisiana, 1993Every tornado warning in 1993Tornadoes in 1993

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.