Alert archive / Texas / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 33, NWS Austin/San Antonio, TX

April 11, 1994Lavaca County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 11, 1994, 11:10 PM CDT for Lavaca County, Texas. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
Apr 11, 1994, 11:10 PM CDT (04:10 UTC)
Expired
Apr 12, 1994, 12:15 AM CDT
In force
65 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Lavaca County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 4.2 hours before the alert went out and 188 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 1994-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3185 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, Corpus Christi, TX at 00:00Z on 1994-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -29 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
3185 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
634 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-29 m²/s²
0-3 km storm-relative helicity
-4 m²/s²
Significant tornado parameter
-0.2
Supercell composite
-1.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KVCT 120412
SVRVCT
TXC285-120515-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE VICTORIA TX
1110 PM CDT MON APR 11 1994
 
THE NATIONAL WEATHER SERVICE IN VICTORIA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1215 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN SOUTH CENTRAL TEXAS
 
   ...NORTHERN LAVACA COUNTY
 
AT 1110 PM CDT VICTORIA RADAR SHOWED A SEVERE THUNDERSTORM BETWEEN
SHINER AND MOULTON MOVING EAST AT 10 MILES AN HOUR.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...FREQUENT LIGHTNING...AND VERY HEAVY RAIN.
HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE
WATER COVERS THE ROAD.
 
IF THREATING WEATHER APPROACHES YOU SHOULD GO TO A SAFE PLACE
IMMEDIATELY...YOU SHOULD ASK THE NEAREST LAW ENFORCEMENT AGENCY
TO RELAY YOUR SEVERE WEATHER REPORTS TO THE LOCAL NATIONAL
WEATHER SERVICE OFFICE.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Apr 11, 5:58 PM CDT, 5 hours 12 minutes before
TXZ172-188-173-192-191-193-208-194-209-174-120100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
557 PM CDT MON APR 11 1994

...THUNDERSTORMS MOVING ACROSS CENTRAL TEXAS...

AT 6 PM THUNDERSTORMS WERE ALONG THE COLD FRONT FROM 10 MILES EAST OF
TEMPLE TO GEORGETOWN AND FROM BUDA TO SAN ANTONIO.  THE STORMS AND THE
COLD FRONT WERE MOVING EAST AT 10 MPH.  THE STRONGEST STORMS WERE 15
MILES NORTH OF ELGIN AND NEAR SAN MARCOS.

LEA8CH
Special weather statement, Apr 11, 8:31 PM CDT, 2 hours 39 minutes before
TXZ193-208-209-174-195-120230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
829 PM CDT MON APR 11 1994

AT 825 PM...RADAR SHOWED A LINE...10 MILES WIDE...OF THUNDERSTORMS FROM
CAMERON IN MILAM COUNTY THROUGH ROCKDALE AND THORNDALE INTO BASTROP
COUNTY NEAR ELGIN AND BASTROP ON DOWN INTO CALDWELL COUNTY NEAR LOCKHART
AND LULING. THE LINE WAS MOVING TO THE EAST AT 15 MPH.

A FEW SMALL SPOTS NEAR ROCKDALE AND WEST OF LEXINGTON AND BASTROP
INDICATED POSSIBLY SMALL HAIL AND VERY INTENSE RAINFALLS.

THESE THUNDERSTORMS WERE PRECEDING A SLOW MOVING COLD FRONT...WHICH
PASSED THROUGH AUSTIN AROUND SUNSET.

JVD
Special weather statement, Apr 11, 9:50 PM CDT, 1 hour 20 minutes before
TXZ193-208-194-209-195-120345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
950 PM CDT MON APR 11 1994

ATY 945 PM...RADAR SHOWED A NARROW LINE OF THUNDERSTORMS EXTENDING FROM
COLLEGE STATION TO JUST EAST OF BASTROP AND LULING. IT WAS MOVING TO
THE SOUTHEAST AT 15 MPH.

HIGHEST RAINFALL RATES WERE NEAR ONE INCH PER HOUR IN A FEW SPOTS NEAR
GIDDINGS...WEST OF LA GRANGE AND EAST OF LULING.

THESE STORMS MAY PRODUCE BRIEF GUSTY WINDS...SMALL HAIL AND CLOUD TO
GROUND LIGHTNING STRIKES.  THEY SHOULD BE IN THE BRENHAM AND LA GRANGE
AREA BETWEEN 10 AND 11 PM.

JVD
Special weather statement, Apr 11, 10:53 PM CDT, 17 minutes before
TXZ239-120500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
1050 PM CDT MON APR 12 1994

...STRONG THUNDERSTORM OVER EASTERN GONZALES COUNTY...

AT 1050 PM WEATHER RADAR INDICATED A STRONG THUNDERSTORM OVER EASTERN
GONZALES COUNTY JUST TO THE EAST OF THE TOWN OF GONZALES. MOVEMENT OF
THIS STORM WAS TO THE EAST NORTHEAST AT 15 MPH.

RADAR INDICATES THIS STORM MAY CONTAIN SOME SMALL HAIL. PERSONS IN
THE AREA NEED TO BE ALERT AND TAKE ACTION SHOULD SEVERE WEATHER
OCCUR...OR A WARNING IS ISSUED.

Nearby

Severe Thunderstorm Warnings in Texas, 1994Every severe thunderstorm warning in 1994

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.