Alert archive / Louisiana / Tornado Warnings in 1990

Tornado Warning 32, NWS Lake Charles, LA

August 31, 1990Cameron Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Aug 31, 1990, 12:02 AM CDT for Cameron Parish, Louisiana. It was in force for 43 min.

The area

The counties it named.

The facts

Issued
Aug 31, 1990, 12:02 AM CDT (05:02 UTC)
Expired
Aug 31, 1990, 12:45 AM CDT
In force
43 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County 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 00:00Z, 5.0 hours before the alert went out and 30 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 00:00Z on 1990-08-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4254 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 00:00Z on 1990-08-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 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
4254 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
1289 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
179 m²/s²
Significant tornado parameter
1.8
Supercell composite
14.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLCH 310507 COR
TORLCH
LAC023-310545-

BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING...CORRECTED FOR AREA WARNED
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1202 AM CDT FRI AUG 31 1990

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1245 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTHWEST LOUISIANA

   ...CAMERON PARISH

AT 1159 PM...THE CAMERON PARISH SHERIFF'S DEPARTMENT REPORTED A
POSSIBLE TORNADO ON THE GROUND IN THE CAMERON AREA.

THE LAKE CHARLES WEATHER RADAR CONTINUED TO SHOW A CLUSTER OF SEVERE
THUNDERSTORMS BETWEEN CAMERON AND WHITE LAKE.


MOVEMENT WAS SOUTH AT 25 MILES AN HOUR.

IF YOU ARE IN THE PATH OF A TORNADO...SEEK SHELTER IN A 5NEARBY
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
Aug 30, 7:48 PM CDTSevere Thunderstorm WarningLCHAcadia, Lafayette, Vermilion57 min
Aug 30, 8:17 PM CDTTornado WarningLCHLafayette, Vermilion43 min
Aug 30, 9:20 PM CDTSevere Thunderstorm WarningLCHCameron, Vermilion55 min
Aug 30, 11:00 PM CDTSevere Thunderstorm WarningLCHCalcasieu, Cameron60 min
Aug 31, 3:03 PM CDTSevere Thunderstorm WarningLCHCalcasieu57 min
Aug 31, 3:05 PM CDTSevere Thunderstorm WarningLCHCalcasieu, Cameron70 min
Aug 31, 3:10 PM CDTSevere Thunderstorm WarningLCHCalcasieu, Cameron65 min
Aug 31, 3:52 PM CDTSevere Thunderstorm WarningLCHCameron53 min

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.