Alert archive / Texas / Flash Flood Warnings in 1992

Flash Flood Warning 8, NWS Austin/San Antonio, TX

February 11, 1992Jackson County, Lavaca County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Feb 11, 1992, 11:30 AM CST for Jackson County, Lavaca County, Texas. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Feb 11, 1992, 11:30 AM CST (17:30 UTC)
Expired
Feb 11, 1992, 12:30 PM CST
In force
60 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Jackson County, TX, Lavaca County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 5.5 hours before the alert went out and 170 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 1992-02-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 265 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 12:00Z on 1992-02-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 137 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
265 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
627 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
137 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KVCT 111742 COR
FFWVCT
TXC239-285-111830-

BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTION...
NATIONAL WEATHER SERVICE VICTORIA TX
1130 AM CST TUE FEB 11 1992

THE NATIONAL WEATHER SERVICE IN VICTORIA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1230 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTH CENTRAL TEXAS
CORRECTION CHANGES PARTS OF THE COUNTIES
   ...NORTHERN JACKSON COUNTY...SOUTHERN LAVACA COUNTY

THE VICTORIA WEATHER RADAR AT 1125AM CST INDICATED HEAVY RAIN SHOWERS
AND THUNDERSTORMS WITH HEAVY RAIN WERE LOCATED OVER THE SOUTHERN HALF
OF LAVACA COUNTY AND THE NORTH AND NORTHEAST PARTS OF JACKSON COUNTY.
MOVEMENT WAS LESS THAN 10 MPH TO THE EAST AND NORTHEAST.

THE HEAVY RAIN HAS MOVED OUT OF DE WITT COUNTY.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.

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 CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

IF THREATING WEATHER APPROACHES YOU SHOULD GO TO A SAFE PLACE
IMMEDIATELY...YOU SHOULD ASK THE NEAREST LAW ENFORCEMENT AGENCY
TO RELAY YOUR SEVE:RE WEATHER REPORTS TO THE LOCAL NATIONAL
WEATHER SERVICE OFFICE.

00

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 11, 1:27 PM CSTFlash Flood WarningEWXJackson, Lavaca63 min
Feb 11, 2:18 PM CSTFlash Flood WarningEWXLavaca57 min
Feb 11, 3:20 PM CSTFlash Flood WarningEWXLavaca55 min
Feb 11, 4:16 PM CSTFlash Flood WarningEWXDeWitt, Lavaca59 min
Feb 11, 4:52 PM CSTSevere Thunderstorm WarningEWXBurleson68 min
Feb 11, 4:52 PM CSTSevere Thunderstorm WarningEWXWilliamson68 min
Feb 11, 5:30 PM CSTFlash Flood WarningEWXJackson, Lavaca60 min
Feb 11, 5:30 PM CSTFlash Flood WarningEWXDeWitt60 min
Feb 11, 5:49 PM CSTSevere Thunderstorm WarningEWXBurnet, Travis, Williamson26 min

Nearby

Flash Flood Warnings in Texas, 1992Every flash flood warning in 1992

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.