Alert archive / Louisiana / Tornado Warnings in 1989

Tornado Warning 2, NWS Lake Charles, LA

February 20, 1989LaSalle Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Feb 20, 1989, 1:06 PM CST for LaSalle Parish, Louisiana. It was in force for 69 min.

The area

The counties it named.

The facts

Issued
Feb 20, 1989, 1:06 PM CST (19:06 UTC)
Expired
Feb 20, 1989, 2:15 PM CST
In force
69 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County LaSalle 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, 7.1 hours before the alert went out and 200 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 1989-02-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 586 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 1989-02-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 249 square meters per square second.1939587897Sfc1 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
586 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
517 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
249 m²/s²
0-3 km storm-relative helicity
322 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLCH 201910
TORESF
LAC059-202015-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ALEXANDRIA LA
ISSUED BY LAKE CHARLES LA
106 PM CST MON FEB 20 1989
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  215 PM CST
FOR PEOPLE IN THE FOLLOWING PARISH...
 
IN CENTRAL LOUISIANA
          ...SOUTHERN LA SALLE
 
THE THUNDERSTORM THAT PRODUCED A TORNADO IN THE ALEXANDRIA AREA DURING
THE PAST HALF HOUR IS MOVING RAPIDLY NORTHEAST INTO LASALLE PARISH.
LOUISIANA STATE POLICE REPORTED A TOUCHDOWN AT 1250PM NEAR THE RIVER
DAMAGED SOME MOBILE HOMES.
 
 
DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO.  CARS ARE EASILY
TOSSED AROUND BY TORNADO WINDS.  IF YOU ARE CAUGHT IN THE PATH OF
A TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING.  IF NO
STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT.

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 20, 10:49 AM CST, 2 hours 17 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1045 AM CST MON FEG 19 1989

...THUNDERSTORMS WITH HEAVY RAIN DEVELOPING...

AT 1030 AM...SCATTERED THUNDERSTORMS...WITH HEAVY RAIN INDICATED...
WERE NEAR ORANGE AND ACROSS BEAUREGARD PARISH FROM NORTH OF SULPHUR TO
DERIDDER.

THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING SMALL HAIL...GUSTY WINDS
...FREQUENT LIGHTING AND BRIEF HEAVY RAINS AS THEY MOVE NORTH AT 35
MILES AN HOUR.

LIGHT RAIN CONTINUED OVER THE GULF FROM 25 MILES SOUTHEAST OF GALVESTON
TO THE SABINE PASS.  OTHER PATCHES OF LIGHT RAIN WERE OCCURRING FROM
NORTHEAST OF KOUNTZE TO EAST OF JASPER.

LIGHT RAIN WAS ALSO FALLING FROM THE NORTHERN PART OF THE TOLEDO BEND
RESERVOIR TO EAST OF SHREVEPORT AND FROM NEAR NATCHITOCHES TO WEST
OF ALEXANDRIA.

The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 20, 12:45 PM CSTTornado WarningLCHRapides60 min
Feb 20, 4:32 PM CSTSevere Thunderstorm WarningLCHVernon58 min

Nearby

Tornado Warnings in Louisiana, 1989Every tornado warning in 1989Tornadoes in 1989

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.