Alert archive / Texas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 78, NWS Austin/San Antonio, TX

August 31, 1990Bexar County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Aug 31, 1990, 9:41 PM CDT for Bexar County, Texas. It was in force for 49 min.

The area

The counties it named.

The facts

Issued
Aug 31, 1990, 9:41 PM CDT (02:41 UTC)
Expired
Aug 31, 1990, 10:30 PM CDT
In force
49 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Bexar 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, 2.7 hours before the alert went out and 223 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 1990-09-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 583 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 1990-09-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 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
583 J/kg
Mixed-layer CIN
-134 J/kg
Mixed-layer LCL
1866 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
56 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 KSAT 010243
SVRSAT
TXC029-010330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
941 PM CDT FRI AUG 31 1990
 
THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTH TEXAS
          ...SOUTHERN BEXAR
 
AT 940 PM CDT...A SEVERE THUNDERSTORM WAS INDICATED IN SOUTH BEXAR
COUNTY JUST SOUTH OF SAN ANTONIO. WINDS ESTIMATED TO 60 MPH AND VERY
HEAVY RAINS WERE REPORTED AT BRAUNIG LAKE DURING THE PAST FEW MINUTES.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...HAIL
3/4 INCH OR MORE IN DIAMETER...FREQUENT LIGHTNING AND VERY HEAVY*
RAIN.

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, Aug 31, 6:34 PM CDT, 3 hours 7 minutes before
TXZ036-039-040-010030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO, TX
630 PM CDT FRI AUG 31 1990

...A SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 10 PM FOR PORTIONS OF
SOUTH CENTRAL TEXAS...INCLUDING COMAL...GUADALUPE...GONZALES...AND
KARNES COUNTIES...

AT 630 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
THUNDERSTORMS...SOME WITH VERY HEAVY RAIN...FROM NEAR AUSTIN TO NEAR
PALACIOS.  THE STRONGEST THUNDERSTORMS IN SOUTH CENTRAL TEXAS WERE EAST
AND NORTHEAST OF THE TOWN OF WAELDER IN GONZALES COUNTY.  MOVEMENT OF
THE STORMS WAS TO THE SOUTHWEST AT 25 MPH...AND WILL BE MOVING INTO
GONZALES COUNTY WITHIN THE HOUR.

THESE THUNDERSTORMS COULD BECOME SEVERE...PRODUCING LARGE HAIL...
DAMAGING WINDS...AND BRIEF HEAVY RAINS.

PERSONS IN AND NEAR THE WATCH AREA ARE URGED TO LISTEN TO THE LATEST
INFORMATION FROM THE NATIONAL WEATHER SERVICE IN THE EVENT WARNINGS
ARE REQUIRED.
Special weather statement, Aug 31, 6:57 PM CDT, 2 hours 44 minutes before
TXZ036-037-010100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
655 PM CDT FRI AUG 31 1990

...THE SEVERE THUNDERSTORM WARNING ISSUED EARLIER FOR BURLESON COUNTY
HAS BEEN CANCELLED.  THE STORM RESPONSIBLE FOR THAT WARNING RAPIDLY
DIMINISHED IN INTENSITY.

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR TRAVIS...WILLIAMSON...
HAYS AND ALL COUNTIES TO THE EAST...UNTIL 10 PM CDT THIS FRIDAY EVENING...

JUST BEFORE 7 PM...RADAR SHOWED A LINE OF SHOWERS AND THUNDERSTORMS FROM
AUSTIN TO SOUTH OF BASTOP AND WEST OF LA GRANGE. THE STRONGEST STORM WAS
NEAR SMITHVILLE.

ANOTHER LINE OF DEVELOPING SCATTERED THUNDERSTORMS WAS NOTED FROM WACO
...CAMERON...CALDWELL..BRENHAM...AND WHARTON. THE STRONGEST STORM WAS
LACATED NEAR CAMERON AND BRENHAM.
MOVEMENT WAS TO THE SOUTHWEST AT 25 MPH.

THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING DAMAGING WINDS...LARGE
HAIL...AND VERY HEAVY RAINS.

PERSONS SHOULD MONITOR WEATHER CONDTIONS AWND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.
Special weather statement, Aug 31, 7:35 PM CDT, 2 hours 6 minutes before
TXZ036-039-040-010135-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO, TX
735 PM CDT FRI AUG 31 1990

...A SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 10 PM FOR PORTIONS OF
SOUTH CENTRAL TEXAS...INCLUDING COMAL...GUADALUPE...GONZALES...AND
KARNES COUNTIES...

AT 730 PM CDT...A LINE OF THUNDERSTORMS...SOME WITH VERY HEAVY RAIN...
WERE INDICATED FROM NEAR LOCKHART TO NORTH OF VICTORIA...MOVING TO THE
SOUTHWEST AT 20 MPH.  THE STORM NEAR LOCKHART WILL BE MOVING INTO
GUADALUPE COUNTY WITHIN THE NEXT HOUR.  AN INTENSE THUNDERSTORM WAS ALSO
LOCATED NEAR CUERO, TEXAS.

SEVERE WEATHER HAS BEEN REPORTED WITH SOME OF THESE STORMS EARLIER THIS
EVENING.  ALONG WITH THE VERY HEAVY RAINS...DAMAGING WINDS...AND LARGE
HAIL...MAY ACCOMPANY THE STRONGER THUNDERSTORMS.

PERSONS IN AND NEAR THE WATCH AREA ARE URGED TO LISTEN TO THE LATEST
INFORMATION FROM THE NATIONAL WEATHER SERVICE IN THE EVENT WARNINGS
ARE REQUIRED.
Special weather statement, Aug 31, 7:37 PM CDT, 2 hours 4 minutes before
TXZ036-039-040-010130-

SPECIAL WEATHER STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE SAN ANTONIO, TX
740 PM CDT FRI AUG 31 1990

...A SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 10 PM FOR PORTIONS OF
SOUTH CENTRAL TEXAS...INCLUDING COMAL...GUADALUPE...GONZALES...AND
KARNES COUNTIES...

AT 730 PM CDT...A LINE OF THUNDERSTORMS...SOME WITH VERY HEAVY RAIN...
WERE INDICATED FROM NEAR LOCKHART TO NORTH OF VICTORIA...MOVING TO THE
SOUTHWEST AT 20 MPH.  THE STORM NEAR LOCKHART WILL BE MOVING INTO
GUADALUPE COUNTY WITHIN THE NEXT HOUR.  AN INTENSE THUNDERSTORM WAS ALSO
LOCATED NEAR CUERO, TEXAS.

SEVERE WEATHER HAS BEEN REPORTED WITH SOME OF THESE STORMS EARLIER THIS
EVENING.  ALONG WITH THE VERY HEAVY RAINS...DAMAGING WINDS...AND LARGE
HAIL...MAY ACCOMPANY THE STRONGER THUNDERSTORMS.

PERSONS IN AND NEAR THE WATCH AREA ARE URGED TO LISTEN TO THE LATEST
INFORMATION FROM THE NATIONAL WEATHER SERVICE IN THE EVENT WARNINGS
ARE REQUIRED.
Special weather statement, Aug 31, 8:58 PM CDT, 43 minutes before
TXZ036-037-010300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
855 PM CDT FRI AUG 31 1990

...A SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR TRAVIS...WILLIAMSON...
HAYS AND ALL COUNTIES TO THE EAST.

JUST BEFORE 9 PM...RADAR SHOWED STRONG THUNDERSTORMS FROM SOUTH OF
SEGUIN TO VICTORIA.  OTHER SCATTERED SHOWERS AND A FEW THUNDERSTORMS WERE
NOTED FROM LA GRANGE TO COLUMBUS AND EL CAMPO.

MOVEMENT WAS TO THE SOUTHWEST AT 25 MPH.

THE BULK OF THE THUNDERSTORMS CONTINUE MOVING SOUTHWEST TOWARD
THE COASTAL SECTIONS WITH NO FURTHER DEVELOPMENT EXPECTED OVER
CENTRAL TEXAS.

PERSONS SHOULD MONITOR WEATHER CONDTIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.
Special weather statement, Aug 31, 9:04 PM CDT, 37 minutes before
TXZ036-037-010300-

SPECIAL WEATHER STATEMENT...CORRECTION...
NATIONAL WEATHER SERVICE AUSTIN TX
905 PM CDT FRI AUG 31 1990

THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR TRAVIS...WILLIAMSON...
HAYS AND ALL COUNTIES TO THE EAST.

JUST BEFORE 9 PM...RADAR SHOWED STRONG THUNDERSTORMS FROM SOUTH OF
SEGUIN TO VICTORIA.  OTHER SCATTERED SHOWERS AND A FEW THUNDERSTORMS WERE
NOTED FROM LA GRANGE TO COLUMBUS AND EL CAMPO.

THE BULK OF THE THUNDERSTORMS CONTINUE MOVING SOUTHWEST TOWARD
THE COASTAL SECTIONS WITH NO FURTHER DEVELOPMENT EXPECTED OVER
CENTRAL TEXAS BECAUSE OF THE LOSS OF DAYTIME HEATING. THUNDERSTORMS
WILL BEGIN TO DECREASE RAPIDLY WITHIN THE NEXT HOUR.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 31, 7:47 PM CDTSevere Thunderstorm WarningEWXJackson, Victoria58 min
Aug 31, 8:05 PM CDTSevere Thunderstorm WarningEWXDeWitt55 min
Aug 31, 8:06 PM CDTSevere Thunderstorm WarningEWXGonzales, Karnes69 min
Aug 31, 8:42 PM CDTSevere Thunderstorm WarningEWXWilson48 min
Sep 1, 1:29 PM CDTSevere Thunderstorm WarningEWXBexar46 min
Sep 1, 2:12 PM CDTSevere Thunderstorm WarningEWXTravis48 min
Sep 1, 2:14 PM CDTSevere Thunderstorm WarningEWXGonzales, Karnes61 min
Sep 1, 2:41 PM CDTSevere Thunderstorm WarningEWXWilson64 min
Sep 1, 3:14 PM CDTSevere Thunderstorm WarningEWXGonzales46 min
Sep 1, 3:17 PM CDTSevere Thunderstorm WarningEWXBurnet58 min
Sep 1, 3:25 PM CDTTornado WarningEWXBexar50 min
Sep 1, 3:47 PM CDTSevere Thunderstorm WarningEWXAtascosa43 min
Sep 1, 4:09 PM CDTSevere Thunderstorm WarningEWXHays, Travis66 min
Sep 1, 4:34 PM CDTSevere Thunderstorm WarningEWXLampasas41 min
Sep 1, 5:00 PM CDTSevere Thunderstorm WarningEWXMedina, Uvalde45 min
Sep 1, 5:20 PM CDTSevere Thunderstorm WarningEWXBexar40 min
Sep 1, 5:47 PM CDTSevere Thunderstorm WarningEWXMedina43 min
Sep 1, 6:11 PM CDTSevere Thunderstorm WarningEWXUvalde49 min

Nearby

Severe Thunderstorm Warnings in Texas, 1990Every severe thunderstorm warning 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.