Alert archive / Texas / Flash Flood Warnings in 1998

Flash Flood Warning 117, 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, 8:18 AM CDT for Edwards County, Kinney County, Val Verde County, Texas. It was in force for 6 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, 8:18 AM CDT (13:18 UTC)
Expired
Aug 24, 1998, 2:15 PM CDT
In force
6 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, 1.3 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 241319
FFWSAT
TXC137-271-465-241915-

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

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

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

* UNTIL 215 PM CDT

* RAIN WILL CONTINUE ACROSS MUCH OF VAL VERDE COUNTY...MOST OF
EDWARDS AND KINNEY COUNTIES THROUGH THE MORNING HOURS.  RAINFALL
SINCE MIDNIGHT HAS TOTALLED OVER 8 INCHES IN SOME LOCATIONS.
RUNOFF FROM THESE RAINS WILL CONTINUE FLASH FLOODING ACROSS THIS
AREA TODAY.

*RIVER FLOOD WARNINGS ARE IN EFFECT FOR THE RIO GRANDE...DEVILS...
WEST NUECES RIVERS AND HONOD CREEK TODAY.

RESIDENTS SHOULD REMAIN ALERT TO EVACUATION RECOMMENDATIONS FROM
COUNTY EMERGENCY MANAGEMENT OFFICALS.  MOTORISTS SHOULD EXERCISE
EXTREME CAUTION. DO NOT TRAVEL IN THIS AREA IF AT ALL POSSIBLE
TODAY.  IF YOU ARE IN THESE AREAS... MOVE TO HIGHER GROUND. DO NOT
DRIVE THROUGH WATER COVERING THE ROAD.

What forecasters said that day

The local office's own words before this flash flood 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, Aug 24, 5:00 AM CDT, 3 hours 18 minutes before
TXZ171>173-183>194-202>209-217>225-228-242300-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
500 AM CDT MON AUG 24 1998

...FLASH FLOOD WATCH IN EFFECT FOR TODAY FOR SOUTH CENTRAL TEXAS AND
THE HILL COUNTRY...

THE REMAINS OF TROPICAL DEPRESSION CHARLEY WAS STALLED IN THE
VICINITY OF DEL RIO TEXAS...WITH LITTLE MOVEMENT EXPECTED TODAY OR
TONIGHT.  TORRENTIAL RAINS HAVE INUNDATED THE WESTERN HILL COUNTRY
AND EDWARDS PLATEAU SINCE SATURDAY NIGHT.  RAIN THUNDERSTORMS HAVE
AND WILL CONTINUE ACROSS SOUTH CENTRAL TEXAS AND THE HILL COUNTRY.

RAINFALL TOTALS OF 2 TO 3 INCHES ARE POSSIBLE OVER THE EASTERN HALF
OF THE AREA WITH 5 TO 10 INCHES POSSIBLE OVER THE WESTERN HALF...IN
THE VICINITY OF CHARLEY.

THIS RAINFALL COMBINED WITH THE SATURATED SOILS FROM THE RAINS SINCE
FRIDAY WILL LEAD TO ADDITIONAL FLOODING AND FLASH FLOODING OF RIVERS
AND STREAMS....LOW LYING AREAS AND ROADWAYS.

RESIDENTS OF SOUTH TEXAS SHOULD LISTEN FOR CURRENT FORECASTS AND
FLASH FLOOD ADVISORIES ISSUED BY THE SOUTH TEXAS NATIONAL WEATHER
SERVICE OFFICES UNTIL THE THREAT OF FLOODING HAS SUBSIDED.

THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF
THE ZONE FORECASTS...SHORT TERM FORECAST...WATCHES...WARNINGS AND
ADVISORIES.  THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED
ONLY IF UNEXPECTED HAZARDOUS WEATHER DEVELOPS OR IF EXPECTED
HAZARDOUS WEATHER NO LONGER IS FORECAST TO DEVELOP.

ADDITIONAL WEATHER INFORMATION IS AVAILABLE ON THE NATIONAL WEATHER
SERVICE CENTRAL AND SOUTH CENTRAL TEXAS HOME PAGE OF THE INTERNET
WORLD WIDE WEB AT WWW.SRH.NOAA.GOV/EWX OR TUNE TO THE VOICE OF THE
NATIONAL WEATHER SERVICE...NOAA WEATHER RADIO...OPERATING ON A
FREQUENCY BETWEEN 162.400 MHZ AND 162.550 MHZ.

NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE:
SOUTHWEST TEXAS    FROM MIDLAND            LBBSPSMAF...WWUS35 KMAF
CONCHO VALLEY      FROM SAN ANGELO         LBBSPSSJT...WWUS35 KSJT
NORTH TEXAS        FROM FORT WORTH         FTWSPSFTW...WWUS35 KFTW
SOUTHEAST TEXAS    FROM HOUSTON/GALVESTON  SATSPSHOU...WWUS35 KHOU
COASTAL BEND/      FROM CORPUS CHRISTI     SATSPSCRP...WWUS35 KCRP
RIO GRANDE PLAINS

LOCAL INFORMATION FOR THE TEXAS COAST IS AVAILABLE VIA INTERNET
HOMEPAGES FROM SOUTH TEXAS NATIONAL WEATHER SERVICE OFFICES.  THESE
ADDRESSES CAN BE OBTAINED FROM WWW.SRH.NOAA.GOV WHICH IS THE HOMEPAGE
ADDRESS FOR THE NATIONAL WEATHER SERVICE SOUTHERN REGION.

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, 8:46 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, 1:57 PM CDTFlash Flood WarningEWXEdwards, Kinney, Val Verde4 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.