Alert archive / Louisiana / Tornado Warnings in 1990

Tornado Warning 33, NWS Lake Charles, LA

October 21, 1990Calcasieu Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Oct 21, 1990, 1:49 PM CDT for Calcasieu Parish, Louisiana. It was in force for 26 min.

The area

The counties it named.

The facts

Issued
Oct 21, 1990, 1:49 PM CDT (18:49 UTC)
Expired
Oct 21, 1990, 2:15 PM CDT
In force
26 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Calcasieu Parish, LA

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 6.8 hours before the alert went out and 19 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, Lake Charles Mun, LA at 12:00Z on 1990-10-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 784 joules per kilogram.LCLLFCEL10008507005003002001001 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, Lake Charles Mun, LA at 12:00Z on 1990-10-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 182 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
784 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
576 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
182 m²/s²
0-3 km storm-relative helicity
183 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLCH 211850
TORLCH
LAC019-211915-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
149 PM CDT SUN OCT 21 1990
 
THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  215 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST LOUISIANA
 
   ...WESTERN CALCASIEU PARISH
 
AT 145 PM CDT...THE STATE POLICE REPORTED A TORNADO HAD TOUCHED DOWN
NEAR MILE MAKER 13 ON INTERSTATE 10...JUST EAST OF VINTON.
THUNDERSTORMS WITH VERY HEAVY RAIN WERE NOTED OVER THIS AREA THAT ARE
ASSOCIATED WITH A FAST MOVING COLD FRONT.
 
 
 
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, Oct 21, 9:50 AM CDT, 3 hours 59 minutes before
TXZ033-211745-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PORT ARTHUR TX
950 AM CDT SUN OCT 21 1990

...COLD FRONT IN THE LAKES AREA...

MODERATE TO HEAVY RAIN HAS BEEN FALLING ACROSS THE EAST TEXAS LAKES
AREA THIS MORNING...BUT THERE HAVE BEEN NO REPORTS OF FLOODING IN THE
LAKES REGION.

THE RAIN IS ASSOCIATED WITH A COLD FRONT WHICH PASSED THROUGH LUFKIN
ABOUT 9 AM CDT. TEMPERATURES AHEAD OF THE FRONT ARE ABOUT 70
DEGREES...WHILE TEMPERATURES BEHIND THE FRONT ARE DROPPING INTO THE
50S. AT 9 AM CDT THE TEMPERATURE IN TYLER HAD DROPPED TO 52 DEGREES.

AN UNCOMFORTABLE AFTERNOON IS IN STORE WITH LIGHT TO MODERATE
RAIN...TEMPERATURES IN THE 50S AND GUSTY NORTH WINDS 10 TO 20 MvPH.
MONDAY WILL BRING CLEARING SKIES AND COOL TEMPERATURES WITH HIGHS IN
THE 60S.

NNNN
Special weather statement, Oct 21, 11:30 AM CDT, 2 hours 19 minutes before
TXZ046-048-212030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PORT ARTHUR TX
1130 AM CDT SUN OCT 21 1990

...CHILLY WEATHER FOR THE GOLDEN TRIANGLE...

A COLD FRONT IS PUSHING SOUTHEAST TOWARD THE BEAUMONT/PORT
ARTHUR/ORANGE METROPOLITAN AREA.  THE COLD FRONT MOVED THROUGH LUFKIN
ABOUT 9 AM CDT AND ACROSS THE HOUSTAN AREA NEAR 10 AM CDT.

AS THE FRONT MOVES THROUGH THE GOLDEN TRIANGLE THIS AFTERNOON...THE
WINDS WILL SHIFT TO THE NORTH AND BECOME QUITE BLUSTERY.  AT 11 AM
CDT...THE WINDS IN HOUSTON WERE NORTH NEAR 20 MPH GUSTING TO ABOUT 30
MPH.

THERE IS A LINE OF THUNDERSTORMS ASSOCIATED WITH THIS COLD FRONT.
BRIEF HEAVY RAINS ARE A POSSIBILITY THIS AFTERNOON...BUT THE FLASKH FLO
WATCH ISSUED EARLY THIS MORNING HAS BEEN CANCELLED AND IS NO LONGER IN
EFFECT.

ALONG WITH THE WINDS...THE TEMPERATURES WILL FALL INTO THE 60S BY LATE
AFTERNOON...AND INTO THE 50S MONDAY MORNING.

NNNN
Special weather statement, Oct 21, 1:22 PM CDT, 27 minutes before
TXZ048-212100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PORT ARTHUR TX
120 PM CDT SUN OCT 21 1990

...COLD FRONT MOVING THROUGH THE GOLDEN TRIANGLE...

A COLD FRONT IS MOVING THORUGH THE BEAUMONT/PORT ARTHUR/ORANGE
METROPOLITAN AREA.  AT 1256 PM CDT...THE COLD FRONT MOVED ACROSS THE
JEFFERSON COUNTY AIRPORT WITH THE WINDS SHIFTING TO THE
NORTHWEST AND INCREASING 15 TO 25 MPH.  AT THE TIME OF THE FRONTAL
PASSAGE...THE WIND GUSTED TO 39 MPH AT THE PORT ARTHUR NATIONAL
WEATHER SERVICE OFFICE.

SHOWERS AND THUNDERSTORMS ARE ASSOCIATED WITH THE COLD FRONT. THE
RAIN BEGAN FALLING WITH THE PASSAGE OF THE FRONT AND THE TEMPERATURES
DROPPED FROM 81 DEGREES AT NOON TO 71 DEGREES AT 1 PM CDT.

THE WINDS WILL CONTINUE OUT OF THE NORTH THROUGH THIS AFTERNOON
AND TONIGHT.  THE TEMNPERATURES WILL CONTINUE TO FALL REACHING THE
LOW 50S BY MONDAY MORNING.
Special weather statement, Oct 21, 1:41 PM CDT, 8 minutes before
LAZ005-006-007-008-011-012-211940-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
140 PM CDT MON OCT 15 1990

A FAST MOVING COLD FRONT WILL BE MOVING INTO THE LAKE CHARLES AREA WITHIN
THE NEXT HOUR. PERIODS OF VERY HEAVY RAINS AND STRONG GUSTY WINDS WILL
ACCOMPANY THIS FRONTAL SYSTEM.

AT 1:30 PM THE LEADING EDGE OF THIS FRONT WAS SHOWN FROM 15 MILES NORTHWEST
OF ALEXANDRIA TO JUST WEST OF VINTON THROUGH PORT ARTHUR TO 15 MILES EAST
OF GALVESTON AND INTO THE WESTERN GULF. MOVEMENT OF THIS FRONTAL SYSTEM
IS TOWARD THE SOUTHEAST AT 20 MPH.

AHEAD AND BEHIND THE FRONTAL SYSTEM A LARGE AREA OF SHOWERS...RAIN..AND A
FEW THUNDERSTORMS AREA SHOWN MAINLY SOUTH OF A LUFKIN MONROE LINE TO THE
COASTAL AREAS OF SOUTHEAST TEXAS AND SOUTHERN LOUISIANA.

SHOWERS AND THUNDERSTORMS WERE MOVING TOWARD THE NORTHEAST AT 20 MPH.

Nearby

Tornado Warnings in Louisiana, 1990Every tornado warning in 1990Tornadoes in 1990

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.