Alert archive / Louisiana / Tornado Warnings in 1990

Tornado Warning 30, NWS Lake Charles, LA

August 5, 1990Cameron Parish, Jefferson Davis Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Aug 5, 1990, 7:53 PM CDT for Cameron Parish, Jefferson Davis Parish, Louisiana. It was in force for 67 min.

The area

The counties it named.

The facts

Issued
Aug 5, 1990, 7:53 PM CDT (00:53 UTC)
Expired
Aug 5, 1990, 9:00 PM CDT
In force
67 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

Counties Cameron Parish, LA, Jefferson Davis 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 20 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 1990-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3273 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 1990-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
3273 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
1236 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
46 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLCH 060055
TORLCH
LAC023-053-060200-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
753 PM CDT SUN AUG 5 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
 
   ...EASTERN CAMERON PARISH...SOUTHERN JEFFERSON DAVIS PARISH
 
AT 750 PM CDT THE LAKE CHARLES WEATHER RADAR SHOWED A CLUSTER OF
SEVERE THUNDERSTORMS OVER SOUTHERN JEFFERSON DAVIS PARISH OR FROM
JUST SOUTHEAST OF LAKE CHARLES TO THE JENNINGS AREA.
 
RADAR INDICATED POSSIBLE TORNADOS WITH THESE THUNDERSTORMS.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING.  AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH
OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

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.