Alert archive / Texas / Tornado Warnings in 1998

Tornado Warning 26, NWS Austin/San Antonio, TX

August 29, 1998Travis County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Aug 29, 1998, 6:46 PM CDT for Travis County, Texas. It was in force for 59 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 29, 1998, 6:46 PM CDT (23:46 UTC)
Expired
Aug 29, 1998, 7:45 PM CDT
In force
59 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Travis County, TX

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 11.8 hours before the alert went out and 281 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, Fort Worth, TX at 12:00Z on 1998-08-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 402 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 12:00Z on 1998-08-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -28 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
402 J/kg
Mixed-layer CIN
-132 J/kg
Mixed-layer LCL
1923 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-28 m²/s²
0-3 km storm-relative helicity
-11 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

754 
WFUS1 KSAT 292347 RRA
TORSAT
TXC453-300045-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
646 PM CDT SAT AUG 29 1998

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A

* TORNADO WARNING FOR...
  TRAVIS COUNTY IN SOUTH CENTRAL TEXAS

* UNTIL 745 PM CDT

* AT 642 PM CDT...A POSSIBLE TORNADO WAS INDICATED BY RADAR BETWEEN
  JONESTOWN AND LAKE TRAVIS. A SECOND POSSIBLE TORNADO WAS
  INDICATED JUST WEST OF LAGO VISTA... BY NATIONAL WEATHER
  SERVICE RADAR... MOVING WEST NEAR 5 TO 10 MPH.

THIS IS A DANGEROUS STORM SITUATION. ACT QUICKLY. IF YOU ARE IN
THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE. OTHERWISE... GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR. AVOID WINDOWS AND DOORS. ABANDON CARS AND MOBILE HOMES FOR
A STURDIER BUILDING OR GET INTO A DITCH OR CULVERT

IF YOU ARE CAUGHT OUTSIDE...SEEK SAFETY IN A NEARBY STURDY
BUILDING. AS A LAST RESORT... SEEK REFUGE IN A CULVERT...
DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. BEWARE
THE THREAT OF RISING WATER.

&

What forecasters said that day

The local office's own words before this tornado 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 29, 6:00 PM CDT, 46 minutes before
TXZ171>173-183>194-202>209-217>225-228-301100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
600 PM CDT SAT AUG 29 1998

THERE IS A CHANCE OF SEVERE THUNDERSTORMS ACROSS NORTHERN PORTIONS OF
THE HILL COUNTRY AND SOUTH CENTRAL TEXAS TIL DARK.

INSTABILITY ALOFT AND A THERMAL LOW PRODUCED FROM HIGH TEMPERATURES AT
THE SURFACE COMBINED TO HELP PRODUCE SCATTERED TO NUMEROUS THUNDERSTORMS
ACROSS THE NORTHERN HILL COUNTRY AND NORTHERN PORTIONS OF SOUTH CENTRAL
TEXAS LATE THIS AFTERNOON. THIS ACTIVITY SHOULD CONTINUE TIL DARK WITH
THE MAIN THREATS BEING LOCALIZED HEAVY RAINS AND FLOODING AND DOWNBURST
WINDS..POSSIBLY IN EXCESS OF 50 MILES AN HOUR.

A SLIGHT CHANCE OF SEVERE THUNDERSTORMS WILL CONTINUE SUNDAY THROUGHOUT
SOUTH CENTRAL TEXAS AND THE HILL COUNTRY WITH A SIMILAR SCENARIO
EXPECTED.

THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF

THE ZONE FORECAST...SHORT TERM FORECAST...WATCHES...WARNINGS AND
ADVISORIES.  THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED
ONLY IF UNEXPECTED HAZARDOUS WEATHER DEVELOPS OR IF EXPECTED
HAZARDOUS WEATHER NO LONGER IS FORECAST TO DEVELOP.

ADDITIONAL WEATHER INFORMATION IS AVAILABLE ON THE NATIONAL WEATHER
SERVICE CENTRAL AND SOUTH CENTRAL TEXAS HOME PAGE OF THE INTERNET
WORLD WIDE WEB AT WWW.SRH.NOAA.GOV/EWX OR TUNE TO THE VOICE OF THE
NATIONAL WEATHER SERVICE...NOAA WEATHER RADIO...OPERATING ON A
FREQUENCY BETWEEN 162.400 MHZ AND 162.550 MHZ.

NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE:
SOUTHWEST TEXAS    FROM MIDLAND            LBBSPSMAF...WWUS35 KMAF
CONCHO VALLEY      FROM SAN ANGELO         LBBSPSSJT...WWUS35 KSJT
NORTH TEXAS        FROM FORT WORTH         FTWSPSFTW...WWUS35 KFTW
SOUTHEAST TEXAS    FROM HOUSTON/GALVESTON  SATSPSHOU...WWUS35 KHOU
COASTAL BEND/      FROM CORPUS CHRISTI     SATSPSCRP...WWUS35 KCRP
RIO GRANDE PLAINS
Special weather statement, Aug 29, 6:00 PM CDT, 46 minutes before
TXZ171>173-183>194-202>209-217>225-228-301100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
600 PM CDT SAT AUG 29 1998

THERE IS A CHANCE OF SEVERE THUNDERSTORMS ACROSS NORTHERN PORTIONS OF
THE HILL COUNTRY AND SOUTH CENTRAL TEXAS TIL DARK.

INSTABILITY ALOFT AND A THERMAL LOW PRODUCED FROM HIGH TEMPERATURES AT
THE SURFACE COMBINED TO HELP PRODUCE SCATTERED TO NUMEROUS THUNDERSTORMS
ACROSS THE NORTHERN HILL COUNTRY AND NORTHERN PORTIONS OF SOUTH CENTRAL
TEXAS LATE THIS AFTERNOON. THIS ACTIVITY SHOULD CONTINUE TIL DARK WITH
THE MAIN THREATS BEING LOCALIZED HEAVY RAINS AND FLOODING AND DOWNBURST
WINDS..POSSIBLY IN EXCESS OF 50 MILES AN HOUR.

A SLIGHT CHANCE OF SEVERE THUNDERSTORMS WILL CONTINUE SUNDAY THROUGHOUT
SOUTH CENTRAL TEXAS AND THE HILL COUNTRY WITH A SIMILAR SCENARIO
EXPECTED.

THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF

THE ZONE FORECAST...SHORT TERM FORECAST...WATCHES...WARNINGS AND
ADVISORIES.  THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED
ONLY IF UNEXPECTED HAZARDOUS WEATHER DEVELOPS OR IF EXPECTED
HAZARDOUS WEATHER NO LONGER IS FORECAST TO DEVELOP.

ADDITIONAL WEATHER INFORMATION IS AVAILABLE ON THE NATIONAL WEATHER
SERVICE CENTRAL AND SOUTH CENTRAL TEXAS HOME PAGE OF THE INTERNET
WORLD WIDE WEB AT WWW.SRH.NOAA.GOV/EWX OR TUNE TO THE VOICE OF THE
NATIONAL WEATHER SERVICE...NOAA WEATHER RADIO...OPERATING ON A
FREQUENCY BETWEEN 162.400 MHZ AND 162.550 MHZ.

NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE:
SOUTHWEST TEXAS    FROM MIDLAND            LBBSPSMAF...WWUS35 KMAF
CONCHO VALLEY      FROM SAN ANGELO         LBBSPSSJT...WWUS35 KSJT
NORTH TEXAS        FROM FORT WORTH         FTWSPSFTW...WWUS35 KFTW
SOUTHEAST TEXAS    FROM HOUSTON/GALVESTON  SATSPSHOU...WWUS35 KHOU
COASTAL BEND/      FROM CORPUS CHRISTI     SATSPSCRP...WWUS35 KCRP
RIO GRANDE PLAINS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 4:47 PM CDTSevere Thunderstorm WarningEWXBurnet43 min
Aug 29, 5:01 PM CDTFlash Flood WarningEWXVal Verde3 hr
Aug 29, 5:56 PM CDTSevere Thunderstorm WarningEWXVal Verde94 min
Aug 29, 6:14 PM CDTSevere Thunderstorm WarningEWXWilliamson61 min
Aug 29, 6:28 PM CDTSevere Thunderstorm WarningEWXTravis62 min
Aug 29, 6:31 PM CDTSevere Thunderstorm WarningEWXTravis59 min
Aug 29, 6:39 PM CDTTornado WarningEWXTravis61 min

Nearby

Tornado Warnings in Texas, 1998Every tornado warning in 1998Tornadoes in 1998

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.