Alert archive / Louisiana / Tornado Warnings in 1986

Tornado Warning 13, NWS Lake Charles, LA

November 4, 1986Cameron Parish, Vermilion Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Nov 4, 1986, 8:19 PM CST for Cameron Parish, Vermilion Parish, Louisiana. It was in force for 56 min.

The area

The counties it named.

The facts

Issued
Nov 4, 1986, 8:19 PM CST (02:19 UTC)
Expired
Nov 4, 1986, 9:15 PM CST
In force
56 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

Counties Cameron Parish, LA, Vermilion 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, 2.3 hours before the alert went out and 54 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 1986-11-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1684 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 1986-11-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 169 square meters per square second.19395878Sfc1 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
1684 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
586 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
169 m²/s²
0-3 km storm-relative helicity
165 m²/s²
Significant tornado parameter
1.4
Supercell composite
8.3

Open this sounding in Storm Lab

The text

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

000 
TTAAOO KLCH 050219
TORLCH
LAC023-113-050315-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
819 PM CST TUE NOV  4 1986
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL  915 PM CST FOR PEOPLE IN THE FOLLOWING PARISHES:
 
IN SOUTHWEST LOUISIANA
          ..EASTERN CAMERON..WESTERN VERMILLION

AT 804 PM CST THE SHERIFFS OFFICE IN CAMERON REPORTED A TORNADO
TOUCHDOWN IN OAK GROVE LA WHICH IS 11 MILES EAST OF CAMERON IN
CAMERON PARISH.
 
RADAR SHOWED A BAND OF STRONG THUNDERSTORMS OVER THE EASTERN PART OF
CAMERON MOVING EAST AT 30 MILES AN HOUR.
 
THIS WARNING IS IN EFFECT UNTIL 910 PM CST FOR PERSONS IN EASTERN
CAMERON AND WESTERN VERMILLION PARISHES.
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, 1986Every tornado warning in 1986Tornadoes in 1986

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.