Alert archive / Texas / Flash Flood Warnings in 1991

Flash Flood Warning 2, NWS Austin/San Antonio, TX

January 9, 1991Bastrop County, Travis County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jan 9, 1991, 10:21 AM CST for Bastrop County, Travis County, Texas. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Jan 9, 1991, 10:21 AM CST (16:21 UTC)
Expired
Jan 9, 1991, 2:30 PM CST
In force
4 hr
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Bastrop County, TX, Travis County, TX

The nearest sounding before it

Stephenville/Cla, TX (KSEP), launched 12:00Z, 4.4 hours before the alert went out and 229 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, Stephenville/Cla, TX at 12:00Z on 1991-01-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Stephenville/Cla, TX at 12:00Z on 1991-01-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
550 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
61 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 KAUS 091627
FFWAUS
TXC021-453-092030-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN TX
1021 AM CST WED JAN 9 1991
 
THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  230 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL TEXAS
 
   ...BASTROP COUNTY...TRAVIS COUNTY
 
 
THE WARNING FOR TRAVIS COUNTY HAS BEEN EXTENDED UNTILL 23O PM FOR ALL
OF TRAVIS COUNTY. THUNDERSTORMS PRODUCING HEAVY RAINS ARE NOW OVER
SOUTHWEST TRAVIS COUNTY MOVING TOWARDS THE NORTHEAST. HEAVY RAINS HAVE
ALREADY FALLEN OVER EASTERN TRAVIS AND MOST OF BASTROP COUNTY CAUSING
STREAMS AND CREEKS TO FLOOD. MANY LOW LYING AREAS HAVE STANDING WATER
AND MANY LOW WATER CROSSINGS ARE FLOODED.
 
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT.  IT'S
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS.  CAMPERS SHOULD
AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS.
 
MOST DEATHS IN FLASH FLOODING 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
SMALL ONE...ON FOOT.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 9, 7:56 AM CSTFlash Flood WarningEWXTravis3 hr
Jan 9, 11:49 AM CSTFlash Flood WarningEWXBastrop, Travis, Williamson3 hr
Jan 9, 11:49 AM CSTFlash Flood WarningEWXBurleson, Lee, Milam3 hr

Nearby

Flash Flood Warnings in Texas, 1991Every flash flood warning in 1991

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.