Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 44, NWS Austin/San Antonio, TX

February 12, 1998Zavala County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Feb 12, 1998, 5:05 PM CST for Zavala County, Texas. It was in force for 55 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
Feb 12, 1998, 5:05 PM CST (23:05 UTC)
Expired
Feb 12, 1998, 6:00 PM CST
In force
55 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Zavala County, TX

What was reported inside it

TimeReportWhereRemark
Feb 12, 5:15 PM CSTHail 2.5Batesville, TXHail was piled up to 5 inches deep and destroyed 4500 acres of onions.

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 nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 11.1 hours before the alert went out and 119 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, Del Rio, TX at 12:00Z on 1998-02-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Del Rio, TX at 12:00Z on 1998-02-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 278 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1761 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
278 m²/s²
0-3 km storm-relative helicity
259 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.

858 
WUUS1 KSAT 122307 RRA
SVRSAT
TXC507-130000-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
505 PM CST THU FEB 12 1998
 
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  600 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL TEXAS
 
   ...ZAVALA COUNTY
 
RADAR INDICATED A SEVERE THUNDERSTORM NEAR BATESVILLE MOVING SOUTHEAST
AT 20 MPH. LARGE HAIL IS INDICATED WITH THIS STORM. RESIDENTS IN
BATESVILLE AND SURROUNDING AREAS SHOULD MOVE INDOORS.
 
SEVERE THUNDERSTORM WINDS CAN REACH SPEEDS OVER 60 MPH.  THESE WINDS
BLOW DOWN TREES...POWER LINES...AND SEVERELY DAMAGE MOBILE HOMES...
SOMETIMES BUILDINGS.  VERY LARGE HAIL CAN INJURE ANYONE CAUGHT
OUTSIDE.

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, Feb 12, 4:32 PM CST, 33 minutes before
TXZ171>173-186>194-203>209-218>225-228-130130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
432 PM CST THU FEB 12 1998

...SEVERE THUNDERSTORM WARNING FOR LLANO COUNTY EXPIRED AT 4 PM...

POLICE REPORTED MARBLE SIZE HAIL WITH THE THUNDERSTORM WHICH MOVED
ALONG THE LLANO RIVER WEST OF LLANO.  THE STORM HAS DISSIPATED AND
NEW STORMS ARE DEVELOPING SOUTH OF THE AREA.

STRONG THUNDERSTORMS WILL CONTINUE TO DEVELOP DURING THE REMAINDER OF
THE AFTERNOON WITH MOSTLY PEA OR MARBLE SIZE HAIL WITH STRONGEST
STORMS.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL OR CABLE TELEVISION
STATIONS FOR THE LATEST WEATHER INFORMATION.
Special weather statement, Feb 12, 4:32 PM CST, 33 minutes before
TXZ171>173-186>194-203>209-218>225-228-130130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
432 PM CST THU FEB 12 1998

...SEVERE THUNDERSTORM WARNING FOR LLANO COUNTY EXPIRED AT 4 PM...

POLICE REPORTED MARBLE SIZE HAIL WITH THE THUNDERSTORM WHICH MOVED
ALONG THE LLANO RIVER WEST OF LLANO.  THE STORM HAS DISSIPATED AND
NEW STORMS ARE DEVELOPING SOUTH OF THE AREA.

STRONG THUNDERSTORMS WILL CONTINUE TO DEVELOP DURING THE REMAINDER OF
THE AFTERNOON WITH MOSTLY PEA OR MARBLE SIZE HAIL WITH STRONGEST
STORMS.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL OR CABLE TELEVISION
STATIONS FOR THE LATEST WEATHER INFORMATION.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 12, 2:59 PM CSTSevere Thunderstorm WarningEWXLlano61 min
Feb 12, 5:18 PM CSTSevere Thunderstorm WarningEWXWilson57 min
Feb 12, 5:26 PM CSTSevere Thunderstorm WarningEWXCaldwell, Guadalupe64 min
Feb 12, 5:40 PM CSTSevere Thunderstorm WarningEWXFrio50 min
Feb 12, 5:48 PM CSTSevere Thunderstorm WarningEWXKarnes57 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.