Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 214, NWS Austin/San Antonio, TX

October 5, 1998Kinney County, Val Verde County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Oct 5, 1998, 11:39 PM CDT for Kinney County, Val Verde County, Texas. It was in force for 61 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
Oct 5, 1998, 11:39 PM CDT (04:39 UTC)
Expired
Oct 6, 1998, 12:40 AM CDT
In force
61 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Kinney County, TX, Val Verde County, TX

What was reported inside it

TimeReportWhereRemark
Oct 6, 12:00 AM CDTThunderstorm Wind 51Laughlin Afb, 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 nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 4.7 hours before the alert went out and 28 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 00:00Z on 1998-10-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5197 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1998-10-06The 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
5197 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1176 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
189 m²/s²
Significant tornado parameter
3.0
Supercell composite
22.7

Open this sounding in Storm Lab

The text

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

871 
WUUS1 KSAT 060441 RRA
SVRSAT
TXC271-465-060540-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1139 PM CDT MON OCT 5 1998

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

* SEVERE THUNDERSTORM WARNING FOR...
  VAL VERDE COUNTY IN SOUTH CENTRAL TEXAS
  KINNEY COUNTY IN SOUTH CENTRAL TEXAS

* UNTIL 1240 AM CDT


* AT 1135 PM CDT ... A SEVERE THUNDERSTORM WAS INDICATED NEAR
  LAUGHLIN AIR FORCE BASE DEL RIO... MOVING TOWARD THE NORTHEAST
  10 MPH.

  WEATHER OBSERVERS AT LAUGHLIN AFB REPORTED WIND GUSTS TO NEAR
  60 MPH ALONG WITH ONE-QUARTER INCH DIAMETER HAIL AT 1130 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, Oct 5, 7:06 PM CDT, 4 hours 33 minutes before
TXZ171-172-188-060100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
706 PM CDT MON OCT 5 1998

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT TIL 9PM CDT...

AT 7 PM...DOPPLER RADAR SHOWED BANDS OF SHOWERS AND
THUNDERSTORMS DEVELOPING SOUTH INTO THE AREA ALONG AND
IMMEDIATELY BEHIND A STRONG COLD FRONTAL BOUNDARY. THE
THUNDERSTORMS HAVE SHOWN SIGNS OF INTENSIFYING AS THEY MOVE INTO
VERY UNSTABLE AIR.  NO SEVERE WEATHER WAS IN THE AREA AT
THIS TIME.  THE FRONT WILL MOVE INTO THE AREA OVER THE NEXT
HOUR INCREASING THE THREAT OF SEVERE WEATHER.

STAY TUNED TO LOCAL OR CABLE TELEVISION STATIONS...RADIO
STATIONS OR NOAA WEATHER RADIO STATIONS FOR UPDATES OR
WARNINGS.  REMEMBER BE PREPARED TO QUICKLY MOVE TO SAFETY IF
SEVERE WEATHER IS SPOTTED OR A WARNING IS ISSUED.
Special weather statement, Oct 5, 7:06 PM CDT, 4 hours 33 minutes before
TXZ171-172-188-060100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
706 PM CDT MON OCT 5 1998

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT TIL 9PM CDT...

AT 7 PM...DOPPLER RADAR SHOWED BANDS OF SHOWERS AND
THUNDERSTORMS DEVELOPING SOUTH INTO THE AREA ALONG AND
IMMEDIATELY BEHIND A STRONG COLD FRONTAL BOUNDARY. THE
THUNDERSTORMS HAVE SHOWN SIGNS OF INTENSIFYING AS THEY MOVE INTO
VERY UNSTABLE AIR.  NO SEVERE WEATHER WAS IN THE AREA AT
THIS TIME.  THE FRONT WILL MOVE INTO THE AREA OVER THE NEXT
HOUR INCREASING THE THREAT OF SEVERE WEATHER.

STAY TUNED TO LOCAL OR CABLE TELEVISION STATIONS...RADIO
STATIONS OR NOAA WEATHER RADIO STATIONS FOR UPDATES OR
WARNINGS.  REMEMBER BE PREPARED TO QUICKLY MOVE TO SAFETY IF
SEVERE WEATHER IS SPOTTED OR A WARNING IS ISSUED.

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 5, 8:20 PM CDTSevere Thunderstorm WarningEWXVal Verde90 min
Oct 5, 9:41 PM CDTSevere Thunderstorm WarningEWXEdwards89 min
Oct 5, 10:18 PM CDTFlash Flood WarningEWXEdwards, Val Verde6 hr
Oct 5, 11:08 PM CDTSevere Thunderstorm WarningEWXEdwards92 min
Oct 6, 3:36 AM CDTFlash Flood WarningEWXDeWitt, Lavaca2 hr

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.