Alert archive / Louisiana / Tornado Warnings in 1989

Tornado Warning 18, NWS Lake Charles, LA

June 27, 1989Calcasieu Parish, Cameron Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Jun 27, 1989, 8:44 AM CDT for Calcasieu Parish, Cameron Parish, Louisiana. It was in force for 46 min.

The area

The counties it named.

The facts

Issued
Jun 27, 1989, 8:44 AM CDT (13:44 UTC)
Expired
Jun 27, 1989, 9:30 AM CDT
In force
46 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

Counties Calcasieu Parish, LA, Cameron 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, 1.7 hours before the alert went out and 12 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 1989-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 520 joules per kilogram.LCLEL10008507005003002001001 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 1989-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.193958Sfc1 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
520 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
699 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
75 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLCH 271346
TORLCH
LAC019-023-271430-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
844 AM CDT TUE JUN 27 1989
 
THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  930 AM CDT
FOR PEOPLE IN THE FOLLOWING PARISHES...
 
IN SOUTHWEST LOUISIANA
          ...CALCASIEU...CAMERON
 
THE STATE POLICE TROOP D REPORTED A TORNADO OCCURRED AT THE STRATEGIC
PETROLEUM RESERVE AT HACKBERRY LOUISIANA AT APPROXIMATELY 820 AM.
 
RADAR CONTINUED TO SHOW NUMEROUS...POSSIBLY SEVERE....THUNDERSTORMS OVERTHE WESTERN HALF OF BOTH CALCASIEU AND CAMERON PARISHES.  ADDITIONAL
TORNADOES ARE POSSIBLE OVER CALCASIEU AND CAMERON PARISHES.
 
THE THUNDERSTORMS WERE MOVING NORTH AT 10 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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 6:42 AM CDTFlash Flood WarningLCHBeauregard, Vernon2 hr
Jun 27, 6:42 AM CDTFlash Flood WarningLCHCalcasieu, Cameron2 hr
Jun 27, 7:11 AM CDTTornado WarningLCHCalcasieu49 min
Jun 27, 8:51 AM CDTFlash Flood WarningLCHBeauregard, Vernon2 hr
Jun 27, 8:51 AM CDTFlash Flood WarningLCHCalcasieu, Cameron2 hr

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.