Alert archive / Texas / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 2, NWS Austin/San Antonio, TX

January 14, 1991Caldwell County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jan 14, 1991, 6:13 PM CST for Caldwell County, Texas. It was in force for 47 min.

The area

The counties it named.

The facts

Issued
Jan 14, 1991, 6:13 PM CST (00:13 UTC)
Expired
Jan 14, 1991, 7:00 PM CST
In force
47 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Caldwell County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 0.2 hours before the alert went out and 236 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 1991-01-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1267 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 1991-01-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 308 square meters per square second.1939587897Sfc1 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
1267 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
767 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
308 m²/s²
0-3 km storm-relative helicity
396 m²/s²
Significant tornado parameter
2.5
Supercell composite
10.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAUS 150015
SVRAUS
TXC055-150100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN TX
613 PM CST MON JAN 14 1991
 
THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  700 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL TEXAS
 
   ...CALDWELL COUNTY
 
AT 615 PM A STRONG THUNDERSTORM WAS NOTED JUST WEST OF THE LULING AREA
MOVING TOWARD THE NORTHEAST AT 20 MPH.
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.

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, Jan 14, 5:15 PM CST, 58 minutes before
TXZ036-038>041-150300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO, TX
515 PM CST MON JAN 14 1991

...TORNADO WATCH IN EFFECT UNTIL 11 PM TONIGHT FOR MUCH OF SOUTH CENTRAL
AND SOUTHEAST TEXAS...

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH VALID UNTIL
11 PM TONIGHT FOR AN AREA FROM NEAR COLLEGE STATION TO AUSTIN TO HONDO
TO TILDEN TO CORPUS CHRISTI AND EASTWARD INTO SOUTHEAST TEXAS.
INCLUDED IN THE SOUTH CENTRAL TEXAS PORTION OF THE WATCH ARE THE ABOVE
CITIES AS WELL AS THE SAN ANTONIO METROPOLITAN AREA.

THE THREAT OF SEVERE THUNDERSTORMS HAS DEVELOPED AS STRONG LOW LEVEL
WINDS FROM THE GULF HAVE CONTINUED TO BRING VERY WARM AIR AND PLENTY
OF MOISTURE INTO SOUTH CENTRAL AND SOUTHEAST TEXAS.  THIS WARM...MOIST
AIR WILL SERVE AS THE FUEL FOR THE THUNDERSTORMS.

THE FEATURE THAT WILL CAUSE THE THUNDERSTORMS TO DEVELOP IS AN UPPER
LEVEL DISTURBANCE CURRENTLY LOCATED NEAR IN SOUTHEAST NEW MEXICO.  IT
WILL MOVE SLOWLY SOUTHEASTWARD TONIGHT IN THE DIRECTION OF SOUTH TEXAS.
A COLD FRONT THAT IS ASSOCIATED WITH THE DISTURBANCE WILL MOVE INTO
SOUTH CENTRAL TEXAS TONIGHT AND INTO SOUTHEAST AND DEEP SOUTH TEXAS
TUESDAY MORNING.  AS THIS FRONT CROSSES THE AREA...THE THREAT OF SEVERE
WEATHER WILL END.

SOUTH CENTRAL TEXANS SHOULD MONITOR A RELIABLE SOURCE OF WEATHER
INFORMATION THROUGH THIS EVENING WHILE THE THREAT OF SEVERE STORMS
EXISTS.

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 14, 6:34 PM CSTSevere Thunderstorm WarningEWXTravis, Williamson56 min
Jan 14, 6:39 PM CSTSevere Thunderstorm WarningEWXGuadalupe66 min
Jan 14, 6:57 PM CSTTornado WarningEWXGonzales63 min
Jan 14, 7:05 PM CSTSevere Thunderstorm WarningEWXCaldwell40 min
Jan 14, 7:21 PM CSTSevere Thunderstorm WarningEWXBastrop54 min
Jan 14, 7:54 PM CSTSevere Thunderstorm WarningEWXGuadalupe51 min
Jan 15, 1:15 AM CSTSevere Thunderstorm WarningEWXMilam60 min

Nearby

Severe Thunderstorm Warnings in Texas, 1991Every severe thunderstorm warning 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.