Alert archive / Texas / Flash Flood Warnings in 1998

Flash Flood Warning 121, NWS Austin/San Antonio, TX

August 24, 1998Edwards County, Kinney County, Val Verde County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Aug 24, 1998, 1:57 PM CDT for Edwards County, Kinney County, Val Verde County, Texas. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 24, 1998, 1:57 PM CDT (18:57 UTC)
Expired
Aug 24, 1998, 6:00 PM CDT
In force
4 hr
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Edwards County, TX, Kinney County, TX, Val Verde County, TX

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 7.0 hours before the alert went out and 288 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, Midland Regional, TX at 12:00Z on 1998-08-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 257 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, Midland Regional, TX at 12:00Z on 1998-08-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -27 square meters per square second.1939Sfc1 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
257 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
699 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-27 m²/s²
0-3 km storm-relative helicity
-7 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.

000 
TTAA00 KSAT 241858
FFWSAT
TXC137-271-465-242300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
157 PM CDT MON AUG 24 1998

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS
EXTENDED THE

* FLASH FLOOD WARNING FOR...
  VAL VERDE COUNTY
  EDWARDS COUNTY AND
  KINNEY COUNTY IN SOUTH CENTRAL TEXAS

* UNTIL 600 PM CDT

* FLOODING AND FLASH FLOODING EXPECTED-
  IN DEL RIO NORTHWARD TO LOMA ALTA
  ACROSS MOST OF EDWARDS COUNTY
  ACROSS MOST OF KINNEY COUNTY

* HEAVY RAINS CONTINUE ACROSS EASTERN VAL VERDE...MOST OF EDWARDS...
  AND MOST OF KINNEY COUNTIES.  WIDESPREAD FLOODING CONTINUES ACROSS
  THE WARNED COUNTIES WITH MOST ROADS CLOSED AND MOST LOW LYING
  AREAS FLOODED.

IF YOU ARE IN THESE AREAS...STAY ON HIGHER GROUND AND CONTINUED TO
BE PREPARED TO PROTECT LIFE AND PROPERTY SHOULD RISING WATER OR
FLOODING BE OBSERVED.  MOTORISTS MUST NOT DRIVE THROUGH WATER
COVERING THE ROAD.

FLASH FLOZOD WARNINGS CONTINUE FOR REAL COUNTY UNTIL 415 PM AND
FOR UVALDE COUNTY UNTIL 530 PM.

A FLASH FLOOD WATCH CONTINUES THROUGH THIS AFTERNOON FOR ALL OF
SOUTH CENTRAL TEXAS AND THE TEXAS HILL COUNTRY.

&

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 23, 7:09 PM CDTFlash Flood WarningEWXEdwards, Kerr, Kinney, Val Verde4 hr
Aug 23, 7:26 PM CDTFlash Flood WarningEWXComal, Kendall3 hr
Aug 23, 10:58 PM CDTFlash Flood WarningEWXEdwards, Kinney, Val Verde3 hr
Aug 24, 12:43 AM CDTFlash Flood WarningEWXEdwards, Kinney, Val Verde8 hr
Aug 24, 4:44 AM CDTFlash Flood WarningEWXUvalde4 hr
Aug 24, 6:32 AM CDTFlash Flood WarningEWXReal4 hr
Aug 24, 8:18 AM CDTFlash Flood WarningEWXEdwards, Kinney, Val Verde6 hr
Aug 24, 8:46 AM CDTFlash Flood WarningEWXUvalde3 hr
Aug 24, 10:20 AM CDTFlash Flood WarningEWXReal6 hr
Aug 24, 11:29 AM CDTFlash Flood WarningEWXUvalde6 hr
Aug 24, 3:57 PM CDTFlash Flood WarningEWXReal3 hr

Nearby

Flash Flood Warnings in Texas, 1998Every flash flood 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; the sounding from the Mesonet's radiosonde archive.