Alert archive / Texas / Flash Flood Warnings in 1994

Flash Flood Warning 27, NWS Austin/San Antonio, TX

October 19, 1994Uvalde County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Oct 19, 1994, 2:28 AM CDT for Uvalde County, Texas. It was in force for 62 min.

The area

The counties it named.

The facts

Issued
Oct 19, 1994, 2:28 AM CDT (07:28 UTC)
Expired
Oct 19, 1994, 3:30 AM CDT
In force
62 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Uvalde County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 7.5 hours before the alert went out and 104 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 1994-10-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 615 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, Del Rio, TX at 00:00Z on 1994-10-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -32 square meters per square second.19395878Sfc1 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
615 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
1554 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
-32 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 190730
FFWSAT
TXC463-190830-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
228 AM CDT WED OCT 19 1994
 
THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  330 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH TEXAS
 
   ...SOUTHEASTERN UVALDE COUNTY
 
AT 230 AM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
PERSISTANT THUNDERSTORMS OVER SOUTHEAST UVALDE COUNTY. RAINFALL
ESTIMATES FROM DOPPLER RADAR INDICATED NEAR 5 INCHES OF RAIN HAD
FALLEN IN THE PAST 2 HOURS IN SOUTHEAST UVALDE COUNTY SOME 15
MILES SOUTH OF SABINAL ALONG THE SABINAL RIVER.
 
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.
 
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.

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 19, 1:30 AM CDT, 58 minutes before
TXZ155-156-171-172-190800

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
130 AM CDT WED OCT 19 1994

...THUNDERSTORMS REDEVELOPING OVER THE HILL COUNTRY...

AT 125 AM THERE WAS A THUNDERSTORM 15 MILES SW OF LAKE BUCHANAN AND ANOTHER
20 MILES SOUTHEAST OF MASON.  THESE STORMS WERE PRODUCING GUSTY WINDS...
OCCASIONAL LIGHTNING...AND HEAVY RAIN.

THERE WERE STRONG THUNDERSTORMS BETWEEN UTOPIA...UVALDE...AND HONDO.

THE STORMS WERE MOVING TOWARD THE NE AT 15 MPH.

THESE STORMS DEVELOPED RAPIDLY AND FURTHER STORM DEVELOPMENT IS POSSIBLE.
PEOPLE IN THE HILL COUNTRY SHOULD BE PREPARED FOR RAPIDLY CHANGING CONDITIONS.

WALSH
Special weather statement, Oct 19, 1:32 AM CDT, 56 minutes before
TXZ155-156-171-172-190800

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
130 AM CDT WED OCT 19 1994

...THUNDERSTORMS REDEVELOPING OVER THE HILL COUNTRY...

AT 125 AM THERE WAS A THUNDERSTORM 15 MILES SW OF LAKE BUCHANAN AND ANOTHER
20 MILES SOUTHEAST OF MASON.  THESE STORMS WERE PRODUCING GUSTY WINDS...
OCCASIONAL LIGHTNING...AND HEAVY RAIN.

THERE WERE STRONG THUNDERSTORMS BETWEEN UTOPIA...UVALDE...AND HONDO.

THE STORMS WERE MOVING TOWARD THE NE AT 15 MPH.

THESE STORMS DEVELOPED RAPIDLY AND FURTHER STORM DEVELOPMENT IS POSSIBLE.
PEOPLE IN THE HILL COUNTRY SHOULD BE PREPARED FOR RAPIDLY CHANGING CONDITIONS.

WALSH
Special weather statement, Oct 19, 1:46 AM CDT, 42 minutes before
TXZ184>189-202>207-217>221-190800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
146 AM CDT WED OCT 19 1994

THUNDERSTORMS WITH HEAVY RAIN CONTINUED OVER UVALDE...EASTERN KENNEY AND
NORTHERN ZAVALA COUNTIES.  AT 140 AM  THE STRONGEST THUNDERSTORMS WERE
LOCATED OVER SOUTHEAST UVALDE COUNTY.  NATIONAL WEATHER SERVICE DOPPLER
RADAR INDICATED THAT NEARLY 2.5 INCHES OF RAIN HAD POSSIBLY FELL JUST
EAST OF UVALDE IN THE PAST 2 HOURS.

THESE STORMS WERE MOVING TO THE NORTHEAST AT ABOUT 10 MPH INTO WESTERN
MEDINA COUNTY.

PERSONS IN THE PATH OF THESE STORMS WILL EXPERIENCE HEAVY RAIN,  GUSTY
THUNDERSTORM WINDS AND DEADLY LIGHTNING FOR THE NEXT COUPLE OF HOURS.
SMALL CREEKS COULD RAPIDLY REACH BANKFULL AND LOW WATER CROSSINGS WILL
FILL QUICKLY.  MOTORISTS ARE ADVISED NOT TO DRIVE INTO WATERS OF UNKNOWN
DEPTHS.
Special weather statement, Oct 19, 1:47 AM CDT, 41 minutes before
TXZ184>189-202>207-217>221-190800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
146 AM CDT WED OCT 19 1994

THUNDERSTORMS WITH HEAVY RAIN CONTINUED OVER UVALDE...EASTERN KENNEY AND
NORTHERN ZAVALA COUNTIES.  AT 140 AM  THE STRONGEST THUNDERSTORMS WERE
LOCATED OVER SOUTHEAST UVALDE COUNTY.  NATIONAL WEATHER SERVICE DOPPLER
RADAR INDICATED THAT NEARLY 2.5 INCHES OF RAIN HAD POSSIBLY FELL JUST
EAST OF UVALDE IN THE PAST 2 HOURS.

THESE STORMS WERE MOVING TO THE NORTHEAST AT ABOUT 10 MPH INTO WESTERN
MEDINA COUNTY.

PERSONS IN THE PATH OF THESE STORMS WILL EXPERIENCE HEAVY RAIN,  GUSTY
THUNDERSTORM WINDS AND DEADLY LIGHTNING FOR THE NEXT COUPLE OF HOURS.
SMALL CREEKS COULD RAPIDLY REACH BANKFULL AND LOW WATER CROSSINGS WILL
FILL QUICKLY.  MOTORISTS ARE ADVISED NOT TO DRIVE INTO WATERS OF UNKNOWN
DEPTHS.
Special weather statement, Oct 19, 2:20 AM CDT, 8 minutes before
TXZ155-156-171>173-190900

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
220 AM CDT WED OCT 19 1994

...THUNDERSTORMS CONTINUE OVER LLANO AND BURNET COUNTIES...

AT 217 AM THERE WAS A LINE OF SHOWERS AND THUNDERSTORMS FROM 25 MILES EAST
OF MASON TO 10 MILES NORTHWEST OF BERTRAM.  THE LINE WAS MOVING TOWARD THE
ENE AT 25 MPH.  THE THUNDERSTORMS WERE PRODUCING GUSTY WINDS...HEAVY RAIN...
AND OCCASIONAL LIGHTNING.

THERE WAS A VERY STRONG THUNDERSTORM WHICH WAS PRODUCING EXTREMELY HEAVY
RAIN SOUTHWEST OF HONDO.

ALTHOUGH THE FLASH FLOOD WATCH DOES NOT INCLUDE THE HILL COUNTRY OR WESTERN
WILLIAMSON COUNTY SOME FLOODING IS POSSIBLE WITH THESE STORMS.  MOTORISTS
SHOULD AVOID ENTERING FLOODED HIGHWAY DIPS AND LOW WATER CROSSINGS.  PERSONS
LIVING IN THE HILL COUNTRY SHOULD BE PREPARED FOR CHANGING WEATHER CONDITIONS.

WALSH
Special weather statement, Oct 19, 2:23 AM CDT, 5 minutes before
TXZ155-156-171>173-190900

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
220 AM CDT WED OCT 19 1994

...THUNDERSTORMS CONTINUE OVER LLANO AND BURNET COUNTIES...

AT 217 AM THERE WAS A LINE OF SHOWERS AND THUNDERSTORMS FROM 25 MILES EAST
OF MASON TO 10 MILES NORTHWEST OF BERTRAM.  THE LINE WAS MOVING TOWARD THE
ENE AT 25 MPH.  THE THUNDERSTORMS WERE PRODUCING GUSTY WINDS...HEAVY RAIN...
AND OCCASIONAL LIGHTNING.

THERE WAS A VERY STRONG THUNDERSTORM WHICH WAS PRODUCING EXTREMELY HEAVY
RAIN SOUTHWEST OF HONDO.

ALTHOUGH THE FLASH FLOOD WATCH DOES NOT INCLUDE THE HILL COUNTRY OR WESTERN
WILLIAMSON COUNTY SOME FLOODING IS POSSIBLE WITH THESE STORMS.  MOTORISTS
SHOULD AVOID ENTERING FLOODED HIGHWAY DIPS AND LOW WATER CROSSINGS.  PERSONS
LIVING IN THE HILL COUNTRY SHOULD BE PREPARED FOR CHANGING WEATHER CONDITIONS.

WALSH

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 19, 3:39 AM CDTFlash Flood WarningEWXFrio2 hr
Oct 19, 7:13 AM CDTFlash Flood WarningEWXMaverick, Uvalde, Zavala2 hr
Oct 19, 8:58 AM CDTFlash Flood WarningEWXZavala3 hr

Nearby

Flash Flood Warnings in Texas, 1994Every flash flood warning in 1994

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.