Alert archive / Texas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 178, NWS Austin/San Antonio, TX

June 10, 1998Val Verde County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jun 10, 1998, 11:12 PM CDT for Val Verde County, Texas. It was in force for 63 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
Jun 10, 1998, 11:12 PM CDT (04:12 UTC)
Expired
Jun 11, 1998, 12:15 AM CDT
In force
63 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Val Verde County, TX

What was reported inside it

TimeReportWhereRemark
Jun 10, 11:15 PM CDTThunderstorm Wind 53(Drt)Del Rio Intl Ar, 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
Jun 10, 7:30 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 4.2 hours before the alert went out and 66 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 1998-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2903 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 1998-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 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
2903 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
1209 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
110 m²/s²
0-3 km storm-relative helicity
180 m²/s²
Significant tornado parameter
2.1
Supercell composite
15.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 110412 RRA
SVRSAT
TXC465-110515-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1112 PM CDT WED JUN 10 1998

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

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

* UNTIL 1215 AM CDT


* AT 1105 PM CDT... A SEVERE THUNDERSTORM WAS INDICATED NEAR LAKE
  AMISTAD... BY NATIONAL WEATHER SERVICE RADAR... MOVING EAST 30
  MPH.  DOPPLER RADAR INDICATES WINDS NEAR 60 MPH OR HIGHER IN THIS
  STORM.


* SOME CITIES AND LOCATIONS IN THE PATH OF THIS STORM ARE...
  DEL RIO BY 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.



p

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 10, 11:32 PM CDTSevere Thunderstorm WarningEWXEdwards, Kinney63 min
Jun 11, 12:11 AM CDTSevere Thunderstorm WarningEWXUvalde64 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.