Alert archive / Texas / Flash Flood Warnings in 1997

Flash Flood Warning 230, NWS Austin/San Antonio, TX

October 10, 1997Fayette County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Oct 10, 1997, 10:15 PM CDT for Fayette County, Texas. It was in force for 105 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 10, 1997, 10:15 PM CDT (03:15 UTC)
Expired
Oct 11, 1997, 12:00 AM CDT
In force
105 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Fayette County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 3.3 hours before the alert went out and 242 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, Corpus Christi, TX at 00:00Z on 1997-10-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 866 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, Corpus Christi, TX at 00:00Z on 1997-10-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -70 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
866 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
513 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-70 m²/s²
0-3 km storm-relative helicity
-12 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 110315
FFWSAT
TXC149-110500-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1015 PM CDT FRI OCT 10 1997

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS EXTENDED THE
FLASH FLOOD WARNING...EFFECTIVE UNTIL MIDNIGHT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTH CENTRAL TEXAS

   ...FAYETTE COUNTY

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AREAS OF HEAVY RAIN
CONTINUING OVER FAYETTE COUNTY.  RAINFALL RATES ARE ESTIMATED AT
JUST OVER AN INCH AN HOUR.  SINCE THE GROUND IS SATURATED FROM PREVIOUS
DAYS RAINS...MOST OF THE RAIN WILL RUN OFF CAUSING LOW WATER CROSSING
TO QUICKLY FILL.


BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS OBSERVED
ACT QUICKLY.  DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER
BEGINS RISING.  TRAVELERS SHOULD NOT ATTEMPT TO CROSS FLOODED ROADS.
IF YOUR VEHICLE STALLS...LEAVE IT AND MOVE IMMEDIATELY TO HIGHER
GROUND IF YOU CAN DO SO SAFELY.

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, Oct 10, 5:15 PM CDT, 5 hours before
TXZ171>173-183>194-202>209-217>225-228-111200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
515 PM CDT FRI OCT 10 1997

...A FLASH FLOOD WATCH IS IN EFFECT TONIGHT THROUGH SATURDAY MORNING
FOR MOST OF SOUTH CENTRAL TEXAS AND THE TEXAS HILL COUNTRY...

A STRONG TROPICAL DISTURBANCE OVER THE LOWER RIO GRANDE VALLEY WILL
CONTINUE ITS SLOW NORTHWESTWARD MOVEMENT TONIGHT INTO SOUTH TEXAS.
SHOWERS AND THUNDERSTORMS ARE EXPECTED TO CONTINUE TONIGHT THROUGH
SATURDAY WITH LOCALLY HEAVY RAINFALL AND FLOODING POSSIBLE.

A FLOOD AND FLASH FLOOD WATCH MEANS CONDITIONS ARE FAVORABLE FOR
HEAVY RAIN AND FLOODING IN OR NEAR THE WATCH AREA.  THE WATCH IS
GENERALLY ALONG AND EAST OF A LINE FROM COTULLA TO UVALDE TO
JUNCTION.

RAINFALL AMOUNTS FROM SCATTERED SHOWERS AND THUNDERSTORMS TONIGHT
WILL AVERAGE FROM HALF AN INCH TO ONE INCH WITH ISOLATED AMOUNTS NEAR
3 TO 4 INCHES POSSIBLE.  FOR SATURDAY...RAINFALL AMOUNTS WILL AVERAGE
NEAR HALF AN INCH WITH ISOLATED TOTALS NEAR 2 INCHES POSSIBLE.

SOILS ACROSS ALL OF SOUTH TEXAS ARE ALREADY SATURATED FROM RAINFALL
FROM THE PAST FEW DAYS.  ADDITIONAL RAIN TONIGHT AND SATURDAY WILL
NOT SOAK IN...BUT RUN OFF RAPIDLY INTO ALREADY SWOLLEN OR FLOODED
CREEKS...RIVERS AND LOW WATER CROSSINGS...OR POND IN LOW-LYING FLAT
AREAS.  MOTORISTS ARE URGED TO USE EXTREME CAUTION AND DO NOT CROSS
OVER FLOODED ROADWAYS.  THE WATER DEPTH WILL BE DEEPER THAN IT LOOKS.

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

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.
Local storm report, Oct 10, 7:45 PM CDT, 2 hours 30 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
745 PM CDT FRI OCT 10 1997

TIME(CDT)  .....CITY LOCATION.....   STATE......EVENT/REMARKS...
           ....COUNTY LOCATION....

0646 PM    6 E FLATONIA              TX   HIGH WATER AT THE ENGLE/PRAHA
10/10/97   FAYETTE                        CROSSING
Local storm report, Oct 10, 7:49 PM CDT, 2 hours 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX[
745 PM CDT FRI OCT 10 1997

TIME(CDT)  .....CITY LOCATION.....   STATE......EVENT/REMARKS...
           ....COUNTY LOCATION..b..

0646 PM    6 E FLATONIA              TX   HIGH WATER AT THE ENGLE/PRAHA
10/10/97   FAYETTE                        CROSSING

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 10, 7:20 PM CDTFlash Flood WarningEWXFayette3 hr
Oct 11, 12:11 AM CDTFlash Flood WarningEWXBastrop, Travis3 hr
Oct 11, 12:11 AM CDTFlash Flood WarningEWXFayette3 hr
Oct 11, 3:00 PM CDTFlash Flood WarningEWXDeWitt, Karnes, Lavaca6 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.