Alert archive / Texas / Tornado Warnings in 1998

Tornado Warning 27, NWS Austin/San Antonio, TX

October 17, 1998Caldwell County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Oct 17, 1998, 12:37 PM CDT for Caldwell County, Texas. It was in force for 63 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
Oct 17, 1998, 12:37 PM CDT (17:37 UTC)
Expired
Oct 17, 1998, 1:40 PM CDT
In force
63 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 12:00Z, 5.6 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 12:00Z on 1998-10-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2241 joules per kilogram.LCLEL10008507005003002001001 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, Corpus Christi, TX at 12:00Z on 1998-10-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 square meters per square second.193958Sfc1 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
2241 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
529 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.7
Supercell composite
4.6

Open this sounding in Storm Lab

The text

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

644 
WFUS1 KSAT 171738 RRA
TORSAT
TXC055-171840-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1237 PM CDT SAT OCT 17 1998

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

* TORNADO WARNING FOR...
  CALDWELL COUNTY IN TEXAS

* UNTIL 140 PM CDT

* AT 12:30 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED A POSSIBLE TORNADO BETWEEN LOCKHART AND DALE... MOVING
  NORTHEAST AT AN UNKNOWN SPEED.

* THE TORNADO IS EXPECTED TO BE NEAR...
  LYTTON SPRINGS AT 12:50 PM CDT
  DALE AT 12:50 PM CDT

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR

DO NOT USE YOUR CAR TO OUTRUN A TORNADO. CARS ARE EASILY TOSSED
AROUND BY TORNADIC WINDS. IF YOU ARE CAUGHT IN THE PATH OF A
TORNADO... LEAVE THE CAR AND GO TO A STRONG BUILDING. IF NO
STRUCTURE IS NEARBY...SEEK SAFETY IN A DITCH OR LOW SPOT. BE
MINDFUL OF RISING WATERS.

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 17, 6:28 AM CDTFlash Flood WarningEWXBexar, Blanco, Comal3 hr
Oct 17, 8:08 AM CDTFlash Flood WarningEWXAtascosa, Frio, Medina2 hr
Oct 17, 8:27 AM CDTFlash Flood WarningEWXBexar, Comal, Hays4 hr
Oct 17, 8:27 AM CDTFlash Flood WarningEWXTravis, Williamson4 hr
Oct 17, 10:41 AM CDTFlash Flood WarningEWXBastrop, Caldwell, Guadalupe6 hr
Oct 17, 12:19 PM CDTFlash Flood WarningEWXBurnet, Travis, Williamson6 hr
Oct 17, 12:19 PM CDTFlash Flood WarningEWXBexar, Blanco, Comal, Hays, Kendall6 hr
Oct 17, 1:15 PM CDTTornado WarningEWXBastrop, Lee60 min
Oct 17, 4:29 PM CDTFlash Flood WarningEWXCaldwell, Guadalupe6 hr
Oct 17, 4:29 PM CDTFlash Flood WarningEWXBastrop6 hr
Oct 17, 4:45 PM CDTFlash Flood WarningEWXFayette, Gonzales6 hr
Oct 17, 5:57 PM CDTFlash Flood WarningEWXLavaca6 hr
Oct 17, 6:22 PM CDTFlash Flood WarningEWXLee5 hr
Oct 17, 6:31 PM CDTFlash Flood WarningEWXBlanco, Comal, Hays, Travis5 hr
Oct 17, 6:31 PM CDTFlash Flood WarningEWXBurnet, Williamson5 hr
Oct 17, 6:31 PM CDTFlash Flood WarningEWXBexar, Kendall5 hr

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.