Alert archive / Texas / Flash Flood Warnings in 1996

Flash Flood Warning 22, NWS Austin/San Antonio, TX

August 24, 1996Travis County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Aug 24, 1996, 10:14 AM CDT for Travis County, Texas. It was in force for 2 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, 1996, 10:14 AM CDT (15:14 UTC)
Expired
Aug 24, 1996, 12:15 PM CDT
In force
2 hr
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Travis County, TX

The radar

The Ft Hood radar (KGRK), 58 km from the middle of the area, began a volume at 15:16 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

Fort Worth, TX (KFWD), launched 12:00Z, 3.2 hours before the alert went out and 281 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, Fort Worth, TX at 12:00Z on 1996-08-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 219 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 12:00Z on 1996-08-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 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
219 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
798 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
-31 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 241515
FFWSAT
TXC453-241715-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1014 AM CDT SAT AUG 24 1996
 
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1215 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL TEXAS
 
   ...TRAVIS COUNTY
 
AT 1015 AM CDT...DOPPLER RADAR INDICATED SLOW MOVING SHOWERS AND
THUNDERSTORMS CONTINUING TO MOVE ACROSS TRAVIS COUNTY. RAINFALL TOTALS
OVER NORTHWEST AUSTIN HAVE BEEN AS HIGH AS 3 TO 3.5 INCHES WITH
ADDITIONAL RAINFALL EXPECTED.
 
SPICEWOOD SPRINGS ROAD IS EXPERIENCING FLOODING OVER LOW WATER CROSSINGS
AND THIS FLOODING IS EXPECTED TO CONTINUE THROUGHOUT THE DAY.
ADDITIONAL FLOODING CAN BE EXPECTED IN MANY LOW WATER CROSSINGS
THROUGHOUT THE CITY.
 
AVOID ALREADY FLOODED AREAS.  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.

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this flash flood warning went out at Aug 23, 11:09 AM CDT, 23 hours 5 minutes earlier.

Area forecast discussion, Aug 23, 11:09 AM CDT, 23 hours 5 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
930 AM CDT FRI AUG 23 1996

MRNG SOUNDINGS FROM BOTH CRP AND LCH INDICATED PW ARND 2 INCHES AND
LI'S OF -5 SO RAIN IS LIKELY AGAIN TODAY. HARD TO SAY EXACTLY WHERE
OR HOW MUCH. ONE BAND WAS LCTD FROM NEAR GLS SE INTO GLF OF MEX.
STILL APPEARS WE ARE IN UPR DIFLUENT PATTERN WITH GOOD ANTI-CYCLONIC
FLOW.  CURRENT PACKAGE LOOKS GOOD WITH DECREASING POPS AS YOU MOVE
INLAND. TIDES ARE STILL RUNNING 1-2 FEET ABOVE NORMAL.
34

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 24, 12:23 PM CDTFlash Flood WarningEWXTravis67 min
Aug 24, 1:30 PM CDTFlash Flood WarningEWXTravis2 hr
Aug 24, 5:11 PM CDTTornado WarningEWXFayette34 min
Aug 24, 5:45 PM CDTFlash Flood WarningEWXZavala2 hr

Nearby

Flash Flood Warnings in Texas, 1996Every flash flood warning in 1996

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.