Alert archive / Texas / Tornado Warnings in 1990

Tornado Warning 16, NWS Austin/San Antonio, TX

September 11, 1990Calhoun County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Sep 11, 1990, 7:51 PM CDT for Calhoun County, Texas. It was in force for 69 min.

The area

The counties it named.

The facts

Issued
Sep 11, 1990, 7:51 PM CDT (00:51 UTC)
Expired
Sep 11, 1990, 9:00 PM CDT
In force
69 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Calhoun 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

Corpus Christi, TX (KCRP), launched 00:00Z, 0.9 hours before the alert went out and 106 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, Corpus Christi, TX at 00:00Z on 1990-09-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Corpus Christi, TX at 00:00Z on 1990-09-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
21 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KVCT 120101
TORVCT
TXC057-120200-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE VICTORIA TX
751 PM CDT TUE SEP 11 1990
 
THE NATIONAL WEATHER SERVICE IN VICTORIA HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  900 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL TEXAS
 
   ...NORTH CENTRAL CALHOUN COUNTY
 
AND THE ADJACENT COASTAL WATERS OF THE SOUTH TEXAS COAST
AND THE ADJACENT COASTAL WATERS OF LAVACA BAY
 
AT 740 PM CDT PUBLIC REPORTED AN UNCONFIRMED TORNADO AT PORT LAVACA
AT JUNCION OF HIGHWAY 87 AND HIGHWAY 35. POLICE OFFICERS REPORTS CIRCU
MOTION OF CLOUDS AT THAT AREA.
 
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE 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.

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.