Alert archive / Louisiana / Tornado Warnings in 1991

Tornado Warning 3, NWS Lake Charles, LA

April 11, 1991Vernon Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Apr 11, 1991, 10:24 AM CDT for Vernon Parish, Louisiana. It was in force for 66 min.

The area

The counties it named.

The facts

Issued: Apr 11, 1991, 10:24 AM CDT (15:24 UTC)
Expired: Apr 11, 1991, 11:30 AM CDT
In force: 66 min
Issued by: NWS Lake Charles, LA
Area: Whole counties

County Vernon Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 3.4 hours before the alert went out and 110 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 854 J/kg
Mixed-layer CIN: -58 J/kg
Mixed-layer LCL: 589 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 149 m²/s²
0-3 km storm-relative helicity: 219 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLCH 111524 RRA
TORLCH
LAC115-111630-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1024 AM CDT THU APR 11 1991
 
THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1130 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST LOUISIANA
 
   ...VERNON PARISH
 
A DEPUTY FROM THE SHERIFF DEPARTMENT REPORTED AT 10.05 AM CDT A
TORNADO TOUCHED DOWN WEST OF ROSEPINE IN THE COTTONWOOD COMMUNITY.
 
RADAR INDICATES A SEVERE THUNDERSTORM BETWEEN ROSEPINE AND FT. POLK
MOVING TOWARD THE NORTHEAST 35 MPH.
 
 
IF YOU ARE IN THE PATH OF A TORNADO...SEEK SHELTER IN A NEARBY
REINFORCED BUILDING.  GET UNDER A PIECE OF STURDY FURNITURE
PREFERABLY IN AN INTERIOR ROOM ON THE LOWEST FLOOR.  USE BLANKETS
OR PILLOWS 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, Apr 11, 8:24 AM CDT, 2 hours before

TXZ033-046-048-111530-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PORT ARTHUR TX
824 AM CDT THU APR 11 1991

...SEVERE THUNDERSTORM WATCH CONTINUES OF EXTREME EAST AMD SOUTHEAST
TEXAS...

AT 820 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
STRONG THUNDERSTORMS GENERALLY FROM THE SAM RAYBURN RESERVOIR TO
WOODVILLE TO WESTERN HARDIN COUNTY EXTENDING OFFSHORE 20 MILES SOUTH
OF HIGH ISLAND.

THESE THUNDERSTORMS WERE MOVING EAST NORTHEAST NEAR 25 MPH AND WILL BE
EFFECTING THE GOLDEN TRIANGLE...ADJACENT COASTAL WATERS AND
SURROUNDING AREAS WITHIN THE NEXT HOUR.

COUNTIES INCLUDED IN THE WATCH AREA ARE JEFFERSON...HARDIN...ORANGE...
JASPER...NEWTON...TYLER AND THE JEFFERSON COUNTY COASTAL WATERS.

PERSONS IN THE WATCH AREA SHOULD PREPARE FOR STRONG GUSTY
WINDS...BRIEF HEAVY RAINS...DANGEROUS LIGTHNING AND POSSIBLE HAIL.

STAY TUNED TO THE NOAA WEATHER RADIO OR LOCAL MEDIA FOR THE LASTEST
WEATHER.

Nearby

Tornado Warnings in Louisiana, 1991 Every tornado warning in 1991 Tornadoes in 1991

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.