Alert archive / Texas / Tornado Warnings in 1990

Tornado Warning 29, NWS Lake Charles, LA

July 23, 1990Jefferson County, Orange County, Texas

NWS Lake Charles, LA issued this tornado warning at Jul 23, 1990, 11:04 AM CDT for Jefferson County, Orange County, Texas. It was in force for 41 min.

The area

The counties it named.

The facts

Issued
Jul 23, 1990, 11:04 AM CDT (16:04 UTC)
Expired
Jul 23, 1990, 11:45 AM CDT
In force
41 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

Counties Jefferson County, TX, Orange County, TX

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, 4.1 hours before the alert went out and 81 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 1990-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2755 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 12:00Z on 1990-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 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
2755 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
693 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
78 m²/s²
0-3 km storm-relative helicity
69 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 KBPT 231604
TORBPT
TXC245-361-231645-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PORT ARTHUR TX
1104 AM CDT MON JUL 23 1990
 
THE NATIONAL WEATHER SERVICE IN PORT ARTHUR HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1145 AM CDT
FOR PERSONS IN THE FOLLOWING COUNTIES
 
IN SOUTHEAST TEXAS
 
   ...NORTHEASTERN JEFFERSON COUNTY...SOUTHERN ORANGE COUNTY
 
 
 
 
AT 1100 AM CDT A TORNADO HAS BEEN SPOTTED BY THE PORT NECHES FIRE
DEPARTMENT OVER NORTHEAST PORT NECHES MOVING NORTHEAST.
 
PERSONS IN PORT NECHES AND SOUTHERN ORANGE COUNTY SHOULD TAKE SHELTER
IMMEDIATELY.
 
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.
 
NNNN

Nearby

Tornado Warnings in Texas, 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.