Alert archive / Texas / Flash Flood Warnings in 1992

Flash Flood Warning 51, NWS Austin/San Antonio, TX

May 17, 1992Lavaca County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at May 17, 1992, 1:49 AM CDT for Lavaca County, Texas. It was in force for 116 min.

The area

The counties it named.

The facts

Issued: May 17, 1992, 1:49 AM CDT (06:49 UTC)
Expired: May 17, 1992, 3:45 AM CDT
In force: 116 min
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, 6.8 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1821 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 604 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 103 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 4.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KVCT 170650
FFWVCT
TXC285-170845-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE VICTORIA TX
149 AM CDT SUN MAY 17 1992
 
THE NATIONAL WEATHER SERVICE IN VICTORIA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  345 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL TEXAS
 
   ...LAVACA COUNTY
 
AT 145 AM CDT VICTORIA RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY
RAIN OCCURRING AT HALLETTSVILLE. THEESE THUNDERSTORMS WERE MOVING
EAST AT 10 MILES AN HOUR.  THE LAVACA SHERIFFS OFFICE REPORTS THAT
FLOODING OF ROADWAYS AND LOW WATER CROSSING IS OCCURRING AT THIS TIME.
 
 
 
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 ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
 
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.

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, May 16, 8:40 PM CDT, 5 hours 9 minutes before

TXZ054-170240-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
840 PM CDT SAT MAY 16 1992

AT 835 PM CDT RADAR INDICATED ONLY SHOWERS REMAINED IN VAL VERDE
COUNTY NEAR LOM ALTA. MOVEMENT WAS TO THE EAST AT 10 MPH.

HEAVY RAIN ALONG THE DEVILS RIVER NEAR BAKERS CROSSING...43 MILES
NORTHWEST OF DEL RIO HAD BEEN REPORTED EARLIER.

MOTORISTS TRAVELING NORTH OUT COMSTOCK TO JUNO ALONG HIGHWAY 163 SHOULD
SHOULD BE ALERT TO THE POSSIBILITY OF FLOODED LOW WATER CROSSINGS.
CAMPERS AND FISHERMEN ALONG THE DEVILS RIVER SHOULD REMAIN ALERT AND BE
PREPARED TO MOVE TO HIGHER GROUND.

STAY TUNED TO YOUR LOCAL NOAA WEATHER RADIO...TV AND RADIO STATIONS FOR
FURTHER STATEMENTS OR WARNINGS.
T

Local storm report, May 16, 10:26 PM CDT, 3 hours 23 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN TX
2345 PM CDT SAT MAY 16 1992

TIME   COUNTY      EVENT OF MAY 16TH...PRELIMENARY REPORT...

1840   TRAVIS      WALNUT CREEK AND DESSAU ROAD REPORTED 4 INCHES AND
                   STILL RAINING.
1904   TRAVIS      SOUTH AUSTIN WEATHER OBSERVER REPORTED .8 INCHES IN
                   A 15 MINUTE PERIOD.
1907   WILLIAMSON  SECONDARY ROADS BEING CLOSED.IEHWY 95 SOUTH OF TAYLOR.
1915   TRAVIS      HAMS REPORTED OLD MANOR HWY IN EAST AUSTIN HAD 11/2
                   FEET OF WATER OVER IT.  LAKE BAYLESS AT THE AIRPORT
                   FLOODED MANOR ROAD AT THE GOLF COURSE. (CITY OF AUSTIN)
1920   WILLIAMSON  COOP OBSERVER IN HUTTO REPORTED 5.90 INCHES OF RAIN
                   SINCE 5 PM.  WIDESPREAD FLOODING.
2020   WILLIAMSON..LOCAL LAW ENFORCEMENT OFFICES REPORTED MANY LOW WATER
       TRAVIS      CROSSINGS AND FLOOD PRONE HIGHWAYS WERE BARRICADED
       HAYS        AND IMPASSABLE.  SOME TROUBLE SPOTS WERE: DRIPPING
                   SPRINGS...KYLE...BUDA...RR2222...MUCH OF SOUTHWEST
                   TRAVIS COUNTY THE NORTHWESTERN THROUGH NORTHEASTERN
                       PARTS OF AUSTIN AND TRAVIS COUNTY.  NEARLY 2/3RDS
                       OF EASTERN WILLIAMSON COUNTY HAD SECONDARY ROADS
                       FLOODED AND IMPASSABLE...ESPECIALLY AROUND ROUND
                       ROCK...GEORGETOWN AND HUTTO.

2128   WILLIAMSON      TAYLOR FIRE DEPARTMENT R
EPORTED 4 VEHICALS STUCK
                       IN HIGH WATER IN THE TAYLOR AREA.

DELAYED REPORT...TRAVIS COUNTY...ONE FATALITY IN CENTRAL AUSTIN. VICTIM
                       DROWN AFTER FALLING INTO WALLER CREEK AROUND 7PM.

DUGAN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 16, 7:46 PM CDT	Tornado Warning	EWX	Atascosa	44 min
May 16, 8:12 PM CDT	Flash Flood Warning	EWX	Bastrop	2 hr
May 16, 8:27 PM CDT	Tornado Warning	EWX	Wilson	63 min
May 16, 9:13 PM CDT	Flash Flood Warning	EWX	Wilson	4 hr
May 16, 9:51 PM CDT	Flash Flood Warning	EWX	Gonzales	4 hr
May 16, 9:58 PM CDT	Flash Flood Warning	EWX	Bastrop, Lee	3 hr
May 16, 11:20 PM CDT	Flash Flood Warning	EWX	Atascosa, Karnes, La Salle, McMullen	4 hr

Nearby

Flash Flood Warnings in Texas, 1992 Every 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.