Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 146, NWS Austin/San Antonio, TX

April 26, 1998Travis County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 26, 1998, 8:30 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, 8:30 PM CDT (01:30 UTC)
Expired
Apr 26, 1998, 10:00 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, 1.5 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°0°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 270130 RRA
SVRSAT
TXC453-270300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
830 PM CDT SUN APR 26 1998

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

* SEVERE THUNDERSTORM WARNING FOR...
  TRAVIS COUNTY IN SOUTH CENTRAL TEXAS

* UNTIL 10 PM CDT


* AT 825 PM CDT... A SEVERE THUNDERSTORM WAS INDICATED ENTERING THE
  WESTERN PART OF TRAVIS COUNTY NEAR STATE HIGHWAY 71... BY NATIONAL
  WEATHER SERVICE RADAR... MOVING EAST-SOUTHEAST 25 MPH.

* THE SEVERE THUNDERSTORM IS EXPECTED TO BE NEAR-
  LAKEWAY AND BEE CAVE AT 845 PM CDT
  AUSTIN METROPOLITAN AREA SHORTLY AFTER 9 PM CDT

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL... DEADLY LIGHTNING... AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT
DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

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 26, 5:00 PM CDT, 3 hours 30 minutes before
TXZ171>173-183>194-202>209-217>225-228-271200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
500 PM CDT SUN APR 26 1998

...TORNADO WATCH IN EFFECT UNTIL 9 PM CDT FOR A PORTION OF THE
   TEXAS HILL COUNTRY AND CENTRAL TEXAS...

SCATTERED SHOWERS OR THUNDERSTORMS...SOME POSSIBLY SEVERE...
ARE FORECAST THIS EVENING FOR A PORTION OF THE HILL COUNTRY AND
CENTRAL TEXAS.  AMOUNTS WILL AVERAGE NEAR A QUARTER OF AN INCH.
NO RAIN OF IMPORTANCE IS EXPECTED MONDAY.

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

THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF
THE ZONE FORECASTS...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.
Special weather statement, Apr 26, 5:00 PM CDT, 3 hours 30 minutes before
TXZ171>173-183>194-202>209-217>225-228-271200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
500 PM CDT SUN APR 26 1998

...TORNADO WATCH IN EFFECT UNTIL 9 PM CDT FOR A PORTION OF THE
   TEXAS HILL COUNTRY AND CENTRAL TEXAS...

SCATTERED SHOWERS OR THUNDERSTORMS...SOME POSSIBLY SEVERE...
ARE FORECAST THIS EVENING FOR A PORTION OF THE HILL COUNTRY AND
CENTRAL TEXAS.  AMOUNTS WILL AVERAGE NEAR A QUARTER OF AN INCH.
NO RAIN OF IMPORTANCE IS EXPECTED MONDAY.

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

THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF
THE ZONE FORECASTS...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.

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, 8:40 PM CDTTornado 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

Severe Thunderstorm Warnings in Texas, 1998Every severe thunderstorm warning 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.