Alert archive / Texas / Tornado Warnings in 1991

Tornado Warning 13, NWS Lake Charles, LA

May 4, 1991Angelina County, Texas

NWS Lake Charles, LA issued this tornado warning at May 4, 1991, 9:23 PM CDT for Angelina County, Texas. It was in force for 37 min.

The area

The counties it named.

The facts

Issued
May 4, 1991, 9:23 PM CDT (02:23 UTC)
Expired
May 4, 1991, 10:00 PM CDT
In force
37 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Angelina County, TX

The nearest sounding before it

Longview/Gregg, TX (KGGG), launched 00:00Z, 2.4 hours before the alert went out and 122 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, Longview/Gregg, TX at 00:00Z on 1991-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3419 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, Longview/Gregg, TX at 00:00Z on 1991-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 80 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
3419 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
890 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
80 m²/s²
0-3 km storm-relative helicity
61 m²/s²
Significant tornado parameter
1.8
Supercell composite
7.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBPT 050223
TORBPT
TXC005-050300-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PORT ARTHUR TX
923 PM CDT SAT MAY 4 1991
 
THE NATIONAL WEATHER SERVICE IN PORT ARTHUR HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1000 PM CDT
FOR PERSONS IN THE FOLLOWING COUNTIES
 
IN EAST CENTRAL TEXAS
 
   ...EASTERN ANGELINA COUNTY
 
AT 850 PM CDT A TORDANADO WAS SPOTTED AT THE AIRPORT SOUTH OF LUFKIN
MOVING EAST. THE TORNADO HAS SINCE MOVED BACK UP INTO THE CLOUDS.
 
THIS THUNDERSTORM STILL CARRIES THE POTENTIAL TO SPAWN TORNADOS AS IT
MOVES EAST ACROSS ANGELINA COUNTY AT 30 MPH.
 
 
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIEBCE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.
 
NNNN

The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 5, 12:47 AM CDTSevere Thunderstorm WarningLCHJefferson58 min
May 5, 1:04 AM CDTSevere Thunderstorm WarningLCHHardin, Tyler56 min
May 5, 2:02 AM CDTSevere Thunderstorm WarningLCHOrange58 min
May 5, 3:18 AM CDTSevere Thunderstorm WarningLCHOrange27 min

Nearby

Tornado Warnings in Texas, 1991Every tornado warning in 1991Tornadoes in 1991

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.