Alert archive / Texas / Flash Flood Warnings in 1997

Flash Flood Warning 208, NWS Austin/San Antonio, TX

June 22, 19975 counties in Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jun 22, 1997, 7:04 PM CDT for 5 counties in Texas. It was in force for 3 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
Jun 22, 1997, 7:04 PM CDT (00:04 UTC)
Expired
Jun 22, 1997, 10:00 PM CDT
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Bandera County, TX, Bexar County, TX, Kendall County, TX, Kerr County, TX, Medina County, TX

The radar

The Austin/San Antonio radar (KEWX), 93 km from the middle of the area, began a volume at 00:06 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 0.1 hours before the alert went out and 183 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 1997-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3583 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 00:00Z on 1997-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 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
3583 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
922 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-9 m²/s²
0-3 km storm-relative helicity
78 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 230006
FFWSAT
TXC019-029-031-053-091-171-259-265-299-325-230300-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
704 PM CDT SUN JUN 22 1997
 
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1000 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL TEXAS
 
   ...BANDERA COUNTY...BEXAR COUNTY...BLANCO COUNTY
   ...BURNET COUNTY...COMAL COUNTY...GILLESPIE COUNTY...KENDALL COUNTY
   ...KERR COUNTY...LLANO COUNTY...MEDINA COUNTY
 
RADAR SHOWS THAT THUNDERSTORMS WITH HEAVY RAINS CONTINUE TO DEVELOP FROM
HONDO TO SAN ANTONIO SPREADING NORTHWARD ACROSS THE CENTRAL AND EASTERN
HILL COUNTRY INTO CENTRAL TEXAS. THE HEAVIEST STORMS ARE PRODUCING
RAINFALL RATES FROM ONE TO NEARLY TWO INCHES PER HOUR.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IMMINENT.
MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT ATTEMPT TO
CROSS BRIDGES...OR LOW SPOTS IF WATER COVERS THE ROADWAY.  NEVER TRY
TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT TO ESCAPE
RISING WATER DURING THREATENING RAINS.
 
THE FLASH FLOOD WARNING FOR GUADALUPE AND HAYS COUNTIES EXPIRED AT 7 PM.
HOWEVER...A FLASH FLOOD WATCH CONTINUES ACROSS ALL OF SOUTH CENTRAL AND
CENTRAL TEXAS THROUGH THE NIGHT...AND WARNINGS MAY BE REQUIRED LATER
TONIGHT.
 
&

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, Jun 22, 5:42 PM CDT, 1 hour 22 minutes before
TXZ171>173-183>194-202>209-217>225-228-231045-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
600 PM CDT SUN JUN 22 1997

...FLASH FLOOD WATCH IN EFFECT THROUGH TONIGHT FOR ALL OF SOUTH
CENTRAL TEXAS...THE TEXAS HILL COUNTRY AND THE MIDDLE RIO GRANDE
PLAINS...

THERE IS A MODERATE POTENTIAL FOR MORE FLOODING OVER MUCH OF SOUTH
CENTRAL TEXAS AND THE HILL COUNTRY TONIGHT.  THIS IS TO THE EXTREMELY
SATURATED GROUND CONDITIONS ALREADY IN EVIDENCE THROUGHOUT THE
AREA...AND HOW LITTLE ADDITIONAL RAIN WILL BE REQUIRED TO CAUSE
ADDITIONAL FLOODING.

THE FLASH FLOOD WATCH IS IN EFFECT THROUGH TONIGHT FOR THE FOLLOWING
COUNTIES...
ATASCOSA...BANDERA...BLANCO...BURNET...DIMMIT...EDWARDS...
GILLESPIE...KENDALL..KERR...KINNEY...MAVERICK...LLANO...REAL...
BASTROP...CALDWELL...FAYETTE...HAYS...LEE...TRAVIS...WILLIAMSON...
ATASCOSA...BEXAR...COMAL...FRIO...GUADALUPE...MEDINA...UVALDE...
WILSON...ZAVALA...DE WITT...GONZALES...KARNES AND LAVACA.

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO CONTINUE
DEVELOPING ACROSS THE SOUTH CENTRAL TEXAS AREA THIS EVENING IN
AN EXTREMELY MOIST AND UNSTABLE AIRMASS.  GROUND CONDITIONS ARE
SATURATED WITH 3 TO 6 INCH RAINS OR MORE COMMON ACROSS THE HILL
COUNTRY AND SOUTH CENTRAL TEXAS DURING THE WEEKEND.  ANY
ADDITIONAL RAINS WILL PRODUCE RAPID RUNOFF AND RESULTANT FLASH
FLOODING..PARTICULARLY IN LOW LYING OR FLOOD PRONE AREAS.

GIVEN RAINFALL RATES ESTIMATED FROM RADAR AND THE CURRENT WEATHER
SCENARIO...SCATTERED 2 TO 4 INCHES OF ADDITIONAL RAINFALL IS POSSIBLE
ACROSS THE REGION TONIGHT AND INTO MONDAY...PARTICULARLY CLOSER TO
THE UPPER LOW OVER THE NORTHERN HILL COUNTRY.  MANY RIVERS..CREEKS
AND STREAMS ARE IN FLOOD AND WILL REMAIN SO FOR THE NEXT FEW DAYS.
DRIVING IS NOT RECOMMENDED IN THE HILL COUNTRY TONIGHT DUE TO CLOSED
ROADS FROM SWOLLEN CREEKS...RIVER AND STREAMS.  STAY TUNED TO YOUR
LOCAL RADIO..TV OR TUNE TO NOAA WEATHER RADIO FOR THE LATEST
ADVISORIES AND WARNINGS FROM THE NATIONAL WEATHER SERVICE.

THE UPPER LOW RESPONSIBLE FOR ALL THE WET WEATHER HAS BEGUN TO MOVE
SLOWLY NORTHWARD AWAY FROM SOUTH TEXAS...HOWEVER AND AREA OF DEEP
TROPICAL MOISTURE IS POISED OFF THE LOWER TEXAS COAST AND COULD MOVE
INTO SOUTH TEXAS LATE MONDAY...BRINGING MORE WET WEATHER TO RAIN
SOAKED SOUTH TEXAS.

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.
Special weather statement, Jun 22, 6:00 PM CDT, 1 hour 4 minutes before
TXZ171>173-183>194-202>209-217>225-228-231045-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
600 PM CDT SUN JUN 22 1997

...FLASH FLOOD WATCH IN EFFECT THROUGH TONIGHT FOR ALL OF SOUTH
CENTRAL TEXAS...THE TEXAS HILL COUNTRY AND THE MIDDLE RIO GRANDE
PLAINS...

THERE IS A MODERATE POTENTIAL FOR MORE FLOODING OVER MUCH OF SOUTH
CENTRAL TEXAS AND THE HILL COUNTRY TONIGHT.  THIS IS TO THE EXTREMELY
SATURATED GROUND CONDITIONS ALREADY IN EVIDENCE THROUGHOUT THE
AREA...AND HOW LITTLE ADDITIONAL RAIN WILL BE REQUIRED TO CAUSE
ADDITIONAL FLOODING.

THE FLASH FLOOD WATCH IS IN EFFECT THROUGH TONIGHT FOR THE FOLLOWING
COUNTIES...
ATASCOSA...BANDERA...BLANCO...BURNET...DIMMIT...EDWARDS...
GILLESPIE...KENDALL..KERR...KINNEY...MAVERICK...LLANO...REAL...
BASTROP...CALDWELL...FAYETTE...HAYS...LEE...TRAVIS...WILLIAMSON...
ATASCOSA...BEXAR...COMAL...FRIO...GUADALUPE...MEDINA...UVALDE...
WILSON...ZAVALA...DE WITT...GONZALES...KARNES AND LAVACA.

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO CONTINUE
DEVELOPING ACROSS THE SOUTH CENTRAL TEXAS AREA THIS EVENING IN
AN EXTREMELY MOIST AND UNSTABLE AIRMASS.  GROUND CONDITIONS ARE
SATURATED WITH 3 TO 6 INCH RAINS OR MORE COMMON ACROSS THE HILL
COUNTRY AND SOUTH CENTRAL TEXAS DURING THE WEEKEND.  ANY
ADDITIONAL RAINS WILL PRODUCE RAPID RUNOFF AND RESULTANT FLASH
FLOODING..PARTICULARLY IN LOW LYING OR FLOOD PRONE AREAS.

GIVEN RAINFALL RATES ESTIMATED FROM RADAR AND THE CURRENT WEATHER
SCENARIO...SCATTERED 2 TO 4 INCHES OF ADDITIONAL RAINFALL IS POSSIBLE
ACROSS THE REGION TONIGHT AND INTO MONDAY...PARTICULARLY CLOSER TO
THE UPPER LOW OVER THE NORTHERN HILL COUNTRY.  MANY RIVERS..CREEKS
AND STREAMS ARE IN FLOOD AND WILL REMAIN SO FOR THE NEXT FEW DAYS.
DRIVING IS NOT RECOMMENDED IN THE HILL COUNTRY TONIGHT DUE TO CLOSED
ROADS FROM SWOLLEN CREEKS...RIVER AND STREAMS.  STAY TUNED TO YOUR
LOCAL RADIO..TV OR TUNE TO NOAA WEATHER RADIO FOR THE LATEST
ADVISORIES AND WARNINGS FROM THE NATIONAL WEATHER SERVICE.

THE UPPER LOW RESPONSIBLE FOR ALL THE WET WEATHER HAS BEGUN TO MOVE
SLOWLY NORTHWARD AWAY FROM SOUTH TEXAS...HOWEVER AND AREA OF DEEP
TROPICAL MOISTURE IS POISED OFF THE LOWER TEXAS COAST AND COULD MOVE
INTO SOUTH TEXAS LATE MONDAY...BRINGING MORE WET WEATHER TO RAIN
SOAKED SOUTH TEXAS.

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 7:04 PM CDTFlash Flood WarningEWXBlanco, Burnet, Comal, Gillespie, Llano3 hr
Jun 22, 9:35 PM CDTFlash Flood WarningEWXLlano3 hr
Jun 22, 10:12 PM CDTFlash Flood WarningEWXEdwards3 hr

Nearby

Flash Flood Warnings in Texas, 1997Every flash flood warning in 1997

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; radar from the NEXRAD Level II archive.