Alert archive / Texas / Flash Flood Warnings in 1994

Flash Flood Warning 23, NWS Austin/San Antonio, TX

October 17, 1994Lavaca County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Oct 17, 1994, 2:35 AM CDT for Lavaca County, Texas. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Oct 17, 1994, 2:35 AM CDT (07:35 UTC)
Expired
Oct 17, 1994, 6:30 AM CDT
In force
4 hr
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Lavaca County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 7.6 hours before the alert went out and 188 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 1994-10-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3167 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 1994-10-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 165 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
3167 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
549 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
165 m²/s²
0-3 km storm-relative helicity
167 m²/s²
Significant tornado parameter
2.7
Supercell composite
12.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KVCT 170732
FFWVCT
TXC285-171130-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE VICTORIA TX
235 AM CDT MON OCT 17 1994
 
THE NATIONAL WEATHER SERVICE IN VICTORIA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  630 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN SOUTH CENTRAL TEXAS
 
   ...LAVACA COUNTY
 
AT 215 AM CDT...VICTORIA RADAR INDICATED STRONG THUNDERSTORMS IN LAVACA
COUNTY. THESE STORMS HAVE PRODUCED 2 TO 3 INCHES OF RAIN BETWEEN
HALLETTSVILLE AND YOAKUM DURING THE PAST 2 HOURS. THUNDERSTORMS WILL
CONTINUE TO DEVELOPE AND MOVE OVER THE SAME AREAS IN LAVACA COUNTY FOR
THE NEXT FEW HOURS. THE STORMS WERE MOVING NORTH AT 20 MPH.
 
THE LAVACA COUNTY SHERIFF REPORTED MANY ROADS FLOODED.  HIGHWAY 77A HAS
WATER 6-9 INCHES ABOVE THE ROAD JUST NORTH OF MUSTANG CREEK.  COUNTY
ROAD 177...175 AND 196 WERE COMPLETELY UNDERWATER AND CLOSED.  THE
LAVACA RIVER REMAINS LOW AT THIS TIME HOWEVER WILL BE CLOSELY MONITORED
FOR A RAPID RISE.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO zCROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
 
 
 
&

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 16, 11:12 PM CDT, 3 hours 23 minutes before
TXZ173-194-193-209-174-170615-

SPECIAL WEATHER STATEMENT...CORRECTED FOR SPELLING...
NATIONAL WEATHER SERVICE AUSTIN TX
1112 PM CDT SUN OCT 16 1994

...SHOWERS AND THUNDERSTORMS MOVING THROUGH EAST-CENTRAL TEXAS...

AT 1110 PM CDT THERE WERE NUMEROUS SHOWERS AND A FEW THUNDERSTORMS ALONG
AND TO THE EAST OF A LINE FROM VICTORIA TO FLATONIA TO ELGIN TO TEMPLE.

THE THUNDERSTORMS WERE PRODUCING VERY HEAVY RAIN AND OCCASIONAL
LIGHTNING.

THERE WERE ALSO LIGHT TO MODERATE SHOWERS BETWEEN AUSTIN AND SAN ANTONIO
AND IN CENTRAL WILLIAMSON COUNTY.

SHOWERS AND THUNDERSTORMS WERE MOVING TOWARD THE NORTHEAST AT 20 MPH.

SOME FLOODING IS POSSIBLE WITH THE THUNDERSTORMS...AND MOTORISTS ARE
ADVISED TO AVOID ENTERING FLOODED HIGHWAY DIPS AND LOW WATER CROSSINGS.

WALSH
Special weather statement, Oct 16, 11:13 PM CDT, 3 hours 22 minutes before
TXZ173-194-193-209-174-170615-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
1112 PM CDT SUN OCT 16 1994

...SHOWERS AND THUNDERSTORMS MOVING THROUGH EAST-CENTRAL TEXAS...

AT 1110 PM CDT THERE WERE NUMEROUS SHOWERS AND A FEW THUNDERSTORMS ALONG
AND TO THE EAST OF A LINE FROM VICTORIA TO FLATONIA TO ELGIN TO TEMPLE.

THE THUNDERSTORMS WERE PRODUCING VERY HEAVY RAIN AND OCCASIONAL
LIGHTNING.

THERE WERE ALSO LIGHT TO MODERATE SHOWERS BETWEEN AUSTIN AND SAN ANTONIO
AND IN CENTRAL WILLIAMSON COUNTY.

SHOWERS AND THUNDERSTORMS WERE MOVING TOWARD THE NORTHEAST AT 20 MPH.

SOME FLOODING IS POSSIBLE WITH THE THUNDESTORMS...AND MOTORISTS ARE
ADVISED TO AVOID ENTERING FLOODED HIGHWAY DIPS AND LOW WATER CROSSINGS.

WALSH
Special weather statement, Oct 16, 11:18 PM CDT, 3 hours 17 minutes before
TXZ173-194-193-209-174-170615-

SPECIAL WEATHER STATEMENT...CORRECTED FOR SPELLING...
NATIONAL WEATHER SERVICE AUSTIN TX
1112 PM CDT SUN OCT 16 1994

...SHOWERS AND THUNDERSTORMS MOVING THROUGH EAST-CENTRAL TEXAS...

AT 1110 PM CDT THERE WERE NUMEROUS SHOWERS AND A FEW THUNDERSTORMS ALONG
AND TO THE EAST OF A LINE FROM VICTORIA TO FLATONIA TO ELGIN TO TEMPLE.

THE THUNDERSTORMS WERE PRODUCING VERY HEAVY RAIN AND OCCASIONAL
LIGHTNING.

THERE WERE ALSO LIGHT TO MODERATE SHOWERS BETWEEN AUSTIN AND SAN ANTONIO
AND IN CENTRAL WILLIAMSON COUNTY.

SHOWERS AND THUNDERSTORMS WERE MOVING TOWARD THE NORTHEAST AT 20 MPH.

SOME FLOODING IS POSSIBLE WITH THE THUNDERSTORMS...AND MOTORISTS ARE
ADVISED TO AVOID ENTERING FLOODED HIGHWAY DIPS AND LOW WATER CROSSINGS.

WALSH
Local storm report, Oct 17, 12:16 AM CDT, 2 hours 19 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE SAN ANTONIO, TX
1216 AM CDT MON OCT 17 1994

    TIME          COUNTY                      EVENT

  605-615 PM     KARNES          DAMAGE TO A FENCE AND TREES 12 N OF KARNES
                                 CITY ON ROUTE 123 BY A REPORTED TORNADO.
  650-700 PM     WILSON          OBSERVER REPORTED A TORNADO NEAR
                                 KOSCIUSKO.

                   BOTH OF ABOVE REPORTED BY SHERIFF'S OFFICE
Special weather statement, Oct 17, 12:54 AM CDT, 1 hour 41 minutes before
TXZ190-173-192-191-194-209-174-170800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
1254 AM CDT MON OCT 17 1994

...THUNDERSTORMS REDEVELOPING IN SOUTH-CENTRAL TEXAS...

AT 1250 AM CDT THUNDERSTORMS HAD DEVELOPED NEAR ROUND ROCK...NEAR
TAYLOR...30 MILES WEST OF SAN MARCOS...AND 20 MILES NORTHEAST OF
LAGRANGE.

SOME OF THESE STORMS WERE PRODUCING VERY HEAVY RAIN AND OCCASIONAL
LIGHTNING.

THE STORMS WERE MOVING TOWARD THE NORTH AT 20 MPH.

WITH THE GROUND SATURATED SOME FLOODING IS POSSIBLE WITH THESE STORMS.
MOTORISTS ARE ADVISED TO AVOID ENTERING FLOODED HIGHWAY DIPS AND LOW
WATER CROSSINGS.

THE THUNDERSTORMS DEVELOPED RAPIDLY AND FURTHER DEVELOPMENT IS POSSIBLE.
PERSONS LIVING IN SOUTH-CENTRAL TEXAS SHOULD BE PREPARED FOR RAPIDLY
CHANGING WEATHER CONDITIONS.

WALSH
Special weather statement, Oct 17, 12:55 AM CDT, 1 hour 40 minutes before
TXZ190-173-192-191-194-209-174-170800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
1254 AM CDT MON OCT 17 1994

...THUNDERSTORMS REDEVELOPING IN SOUTH-CENTRAL TEXAS...

AT 1250 AM CDT THUNDERSTORMS HAD DEVELOPED NEAR ROUND ROCK...NEAR
TAYLOR...30 MILES WEST OF SAN MARCOS...AND 20 MILES NORTHEAST OF
LAGRANGE.

SOME OF THESE STORMS WERE PRODUCING VERY HEAVY RAIN AND OCCASIONAL
LIGHTNING.

THE STORMS WERE MOVING TOWARD THE NORTH AT 20 MPH.

WITH THE GROUND SATURATED SOME FLOODING IS POSSIBLE WITH THESE STORMS.
MOTORISTS ARE ADVISED TO AVOID ENTERING FLOODED HIGHWAY DIPS AND LOW
WATER CROSSINGS.

THE THUNDERSTORMS DEVELOPED RAPIDLY AND FURTHER DEVELOPMENT IS POSSIBLE.
PERSONS LIVING IN SOUTH-CENTRAL TEXAS SHOULD BE PREPARED FOR RAPIDLY
CHANGING WEATHER CONDITIONS.

WALSH

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 17, 1:35 AM CDTFlash Flood WarningEWXFayette115 min
Oct 17, 3:20 AM CDTFlash Flood WarningEWXBastrop, Fayette, Lee3 hr
Oct 17, 6:04 AM CDTFlash Flood WarningEWXFayette, Lee3 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.