Alert archive / Texas / Tornado Warnings in 1990

Tornado Warning 9, NWS Lake Charles, LA

April 27, 1990Jasper County, Texas

NWS Lake Charles, LA issued this tornado warning at Apr 27, 1990, 8:14 PM CDT for Jasper County, Texas. It was in force for 31 min.

The area

The counties it named.

The facts

Issued
Apr 27, 1990, 8:14 PM CDT (01:14 UTC)
Expired
Apr 27, 1990, 8:45 PM CDT
In force
31 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Jasper 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 00:00Z, 1.2 hours before the alert went out and 105 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 1990-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 934 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 1990-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
934 J/kg
Mixed-layer CIN
-110 J/kg
Mixed-layer LCL
1032 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBPT 280114
TORBPT
TXC241-280145-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PORT ARTHUR TX
814 PM CDT FRI APR 27 1990
 
THE NATIONAL WEATHER SERVICE IN PORT ARTHUR HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  845 PM CDT
FOR PERSONS IN THE FOLLOWING COUNTIES
 
IN SOUTHEAST TEXAS
 
   ...CENTRAL JASPER COUNTY
 
AT 812 PM CDT...WEATHER RADAR SHOWED A POSSIBLE TORNADO ON THE NECHES
RIVER WEST OF KIRBYVILLE MOVING EAST AT 20 MPH. EXTREMELY LARGE HAIL
WAS ALSO NOTED IN THIS STORM.
 
IT WAS MOVING ACROSS MOUNT UNION AND NORTHERN KIRBYVILLE.
 
DCG
 
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

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 27, 7:15 PM CDTTornado WarningLCHSan Augustine30 min
Apr 27, 7:18 PM CDTSevere Thunderstorm WarningLCHJasper27 min
Apr 27, 7:49 PM CDTSevere Thunderstorm WarningLCHJasper, Newton, Sabine26 min
Apr 27, 7:49 PM CDTSevere Thunderstorm WarningLCHTyler26 min
Apr 27, 9:50 PM CDTSevere Thunderstorm WarningLCHHardin, Jefferson40 min
Apr 27, 11:45 PM CDTSevere Thunderstorm WarningLCHOrange30 min

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.