Alert archive / Louisiana / Tornado Warnings in 1990

Tornado Warning 25, NWS Lake Charles, LA

July 3, 1990Allen Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Jul 3, 1990, 7:52 PM CDT for Allen Parish, Louisiana. It was in force for 68 min.

The area

The counties it named.

The facts

Issued
Jul 3, 1990, 7:52 PM CDT (00:52 UTC)
Expired
Jul 3, 1990, 9:00 PM CDT
In force
68 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Allen 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, 0.9 hours before the alert went out and 69 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 1990-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 155 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 1990-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.1939Sfc1 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
155 J/kg
Mixed-layer CIN
-91 J/kg
Mixed-layer LCL
833 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLCH 040055 COR
TORLCH
LAC003-040200-

BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING CORRECTED FOR PARISH
NATIONAL WEATHER SERVICE LAKE CHARLES LA
752 PM CDT TUE JUL 3 1990

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  900 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTHWEST LOUISIANA

   ...ALLEN PARISH

THE EVANGELINE PARISH SHERIFF DEPARTMENT REPORTED TWO
TORNADOES TOUCHED DOWN NEAR 167 S. RADAR INDICATES A
SEVERE THUNDERSTORM MOVING INTO THE EASTERN PORTION OF
ALLEN PARISH. THIS STORM WAS MOVING WEST AT 25 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
Jul 3, 8:00 PM CDTSevere Thunderstorm WarningLCHRapides60 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.