Alert archive / Texas / Flash Flood Warnings in 1996

Flash Flood Warning 33, NWS Austin/San Antonio, TX

September 8, 1996DeWitt County, Gonzales County, Karnes County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Sep 8, 1996, 10:36 AM CDT for DeWitt County, Gonzales County, Karnes County, Texas. It was in force for 5 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
Sep 8, 1996, 10:36 AM CDT (15:36 UTC)
Expired
Sep 8, 1996, 4:00 PM CDT
In force
5 hr
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties DeWitt County, TX, Gonzales County, TX, Karnes County, TX

The radar

The Austin/San Antonio radar (KEWX), 76 km from the middle of the area, began a volume at 15:38 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

Corpus Christi, TX (KCRP), launched 12:00Z, 3.6 hours before the alert went out and 159 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 12:00Z on 1996-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2522 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 12:00Z on 1996-09-08The 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
2522 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
539 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
22 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 081551
FFWSAT
TXC123-177-255-082100-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1036 AM CDT SUN SEP 8 1996
 
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 4 PM CDT FOR PERSONS IN THE
FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL TEXAS
 
   ...DE WITT COUNTY...GONZALES COUNTY...KARNES COUNTY
 
AT 1035 AM CDT...COOPERATIVE OBSERVERS REPORTED RAINFALL TOTALS
IN EXCESS OF 5 INCHES OCCURRING BETWEEN WESTHOFF IN DEWITT COUNTY
AND SMILEY IN GONZALES COUNTY.  NEXRAD DOPPLER RAINFALL ESTIMATES
ALSO INDICATE OVER 5 INCHES OF RAIN HAS FALLEN NEAR GILLETT IN
KARNES COUNTY.  WIDESPREAD LOW-LAND FLOODING WAS ALSO REPORTED
BETWEEN WESTHOFF AND SMILEY.  SANDIES CREEK NEAR WESTHOFF WAS ALSO
OVER BANKS...AS WELL AS OTHER TRIBUTARIES NEARBY THAT FLOW INTO THE
GUADALUPE.  NUMEROUS COUNTY ROADS AND STATE HIGHWAYS WERE ALSO
CLOSED DUE TO HIGH FLOOD WATERS.
 
A WIDE AREA OF SHOWERS AND THUNDERSTORMS EXTENDED FROM CRYSTAL
CITY EASTWARD ACROSS SAN ANTONIO TO EL CAMPO.  THE HEAVIEST
STORMS WERE LOCATED ACROSS PORTIONS OF WILSON...KARNES...GONZALES
AND DEWITT COUNTIES.  ADDITIONAL RAINFALL ESTIMATES BETWEEN 1 AND
3 INCHES ARE OCCURRING IN THIS ACTIVITY...AND WILL CONTINUE INTO
THE AFTERNOON HOURS.
 
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.
 
ADDITIONAL BULLETINS WILL BE ISSUED PERIODICALLY KEEPING YOU
INFORMED OF THE VERY LATEST IN WEATHER AND FLOOD CONDITIONS...
SO PLEASE STAY TUNED.

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.