Alert archive / Texas / Tornado Warnings in 1998

Tornado Warning 21, NWS Austin/San Antonio, TX

April 26, 1998Travis County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Apr 26, 1998, 8:40 PM CDT for Travis County, Texas. It was in force for 90 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Apr 26, 1998, 8:40 PM CDT (01:40 UTC)
Expired
Apr 26, 1998, 10:10 PM CDT
In force
90 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Travis County, TX

What was reported inside it

TimeReportWhereRemark
Apr 26, 8:50 PM CDTThunderstorm WindCountywide, TX

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 26, 7:45 PM CDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 1.7 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 00:00Z on 1998-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 799 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 00:00Z on 1998-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 153 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
799 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
602 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
153 m²/s²
0-3 km storm-relative helicity
177 m²/s²
Significant tornado parameter
0.6
Supercell composite
3.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 270140 RRA
TORSAT
TXC453-270310-

TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
840 PM CDT SUN APR 26 1998

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

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

* UNTIL 1010 PM CDT

* AT 835 PM CDT...A TORNADO WAS INDICATED NEAR BRIARCLIFF AND
  LAKEWAY... BY NATIONAL WEATHER SERVICE RADAR... MOVING EAST-
  SOUTHEAST 30 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR-
  BEE CAVE AT 845 PM CDT
  AUSTIN METROPOLITAN AREA SHORTLY AFTER 9 PM CDT
  ANY COMMUNITY IN THE SOUTHERN PART OF TRAVIS COUNTY ALONG AND
  EITHER
  SIDE OF STATE HIGHWAY 71

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 CAUGHT 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.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 26, 7:12 PM CDTSevere Thunderstorm WarningEWXBurnet58 min
Apr 26, 8:03 PM CDTSevere Thunderstorm WarningEWXBlanco62 min
Apr 26, 8:30 PM CDTSevere Thunderstorm WarningEWXTravis90 min
Apr 26, 9:49 PM CDTSevere Thunderstorm WarningEWXBastrop61 min
Apr 27, 3:29 AM CDTSevere Thunderstorm WarningEWXDimmit31 min
Apr 27, 3:56 AM CDTSevere Thunderstorm WarningEWXDimmit34 min
Apr 27, 5:49 AM CDTSevere Thunderstorm WarningEWXDimmit61 min
Apr 27, 4:47 PM CDTSevere Thunderstorm WarningEWXFayette, Lee63 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.