Alert archive / Texas / Flash Flood Warnings in 1996

Flash Flood Warning 11, NWS Austin/San Antonio, TX

June 1, 19964 counties in Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jun 1, 1996, 2:40 AM CDT for 4 counties in 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
Jun 1, 1996, 2:40 AM CDT (07:40 UTC)
Expired
Jun 1, 1996, 8:45 AM CDT
In force
6 hr
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Frio County, TX, Medina County, TX, Uvalde County, TX, Zavala County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 7.7 hours before the alert went out and 256 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 1996-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1565 joules per kilogram.LCLLFCEL10008507005003002001001 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 1996-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.193958Sfc1 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
1565 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
834 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 010742
FFWSAT
TXC163-325-463-507-011345-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
240 AM CDT SAT JUN 1 1996
 
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  845 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL TEXAS
 
   ...FRIO COUNTY...MEDINA COUNTY...UVALDE COUNTY...ZAVALA COUNTY
 
AT 230 AM...RAIN...OCCASIONALLY HEAVY AT TIMES COVERED ALL OF ZAVALA
...FRIO... SOUTHERN MEDINA AND SOUTHERN UVALDE COUNTIES. RAINFALL
RATES OF NEAR 1 INCH PER HOUR WERE OCCURRING WITH NUMEROUS
THUNDERSTORMS ACROSS THE AREA.  THE STORMS WERE SHOWING LITTLE
MOVEMENT OVER THE PAST 2 HOURS AND ARE EXPECTED TO GRADUALLY WEAKEN
WITH RAIN TAPERING OFF BY 8 AM.  MUCH OF THE WARNED AREA HAS
RECIEVED 2 TO 4 INCHES OF RAIN WITH RADAR ESTIMATED RAINFALL OVER
SOME PORTIONS OF SOUTHEASTERN UVALDE COUNTY AND NORTHEASTERN ZAVALA
COUNTIES 5 TO 9 INCHES.  ADDITIONAL RAINFALL OF 1 TO 2 INCHES
TONIGHT WILL PRODUCE SIGNIFICANT FLOODING OF STREAMS...CREEKS AND
LOW LYING AREAS.
 
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.  MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
 
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.
 
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 SPOTLS 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.

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

Local storm report, Jun 1, 12:51 AM CDT, 1 hour 49 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE SAN ANTONIO, TX
1251 AM CDT SAT JUN 01 1996

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....
 0830 PM    BANDERA                   TX   1.75 INCH HAIL
05/31/96   BANDERA                        RPTD BY TV WEATHER
                                          REPORTER

0835 PM    MEDINA                    TX   WIND DAMAGE
05/31/96   BANDERA                        SD RPTD LARGE LIMBS BROKEN
                                          FROM TREES

The office that day

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

IssuedProductOfficeCountiesLasted
May 31, 8:07 PM CDTSevere Thunderstorm WarningEWXBandera68 min
May 31, 9:25 PM CDTFlash Flood WarningEWXMedina3 hr
May 31, 10:25 PM CDTFlash Flood WarningEWXUvalde3 hr
May 31, 11:23 PM CDTFlash Flood WarningEWXZavala3 hr
Jun 1, 12:33 AM CDTFlash Flood WarningEWXMedina3 hr
Jun 1, 12:58 AM CDTFlash Flood WarningEWXFrio3 hr
Jun 1, 3:01 AM CDTFlash Flood WarningEWXDimmit6 hr
Jun 1, 6:22 PM CDTFlash Flood WarningEWXLee3 hr
Jun 1, 6:38 PM CDTSevere Thunderstorm WarningEWXGillespie67 min

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.