Alert archive / Texas / Flash Flood Warnings in 1992

Flash Flood Warning 52, NWS Austin/San Antonio, TX

May 18, 1992Hays County, Travis County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at May 18, 1992, 8:15 PM CDT for Hays County, Travis County, Texas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
May 18, 1992, 8:15 PM CDT (01:15 UTC)
Expired
May 18, 1992, 11:15 PM CDT
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Hays County, TX, Travis County, TX

The nearest sounding before it

Stephenville/Cla, TX (KSEP), launched 00:00Z, 1.3 hours before the alert went out and 226 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 00:00Z on 1992-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 198 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, Stephenville/Cla, TX at 00:00Z on 1992-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -39 square meters per square second.1939Sfc1 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
198 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
710 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-39 m²/s²
0-3 km storm-relative helicity
-39 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 190118 COR
FFWAUS
TXC209-453-190415-

BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTED TO ADD SOUTHERN TRAVIS COUNTY...
NATIONAL WEATHER SERVICE AUSTIN TX
815 PM CDT MON MAY 18 1992

THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1115 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTH CENTRAL TEXAS

   ...EASTERN HAYS COUNTY AND SOUTHERN TRAVIS COUNTY

AT 810 PM...RADAR CONTINUES TO SHOW THUNDERSTORMS WITH VERY HEAVY
RAINFALL OVER EASTERN HAYS COUNTY ALONG I-35 FROM SAN MARCOS TO BUDA.
THERE HAVE BEEN UNCONFIRMED REPORTS OF RAINFALL IN EXCESS OF 3 INCHES.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FOLOODS 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.

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 18, 4:05 PM CDT, 4 hours 10 minutes before
TXZ054-182215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
405 PM CDT MON MAY 18 1992

AT 400 PM CDT RADAR INDICATED THUNDERSTORMS AND SHOWERS FROM DEL RIO TO
COMSTOCK TO LOMA ALTA . A THUNDERSTORM WITH HEAVY RAIN WAS JUST
NORTH OF DEL RIO. MOVEMENT WAS TO THE SOUTHWEST AT 5 MPH.

HEAVY RAIN...FREQUENT DANGEROUS LIGHTNING AND STRONG GUSTY WINDS ARE
POSSIBLE WITH THESE STORMS.

A THUNDERSTORM WITH HEAVY RAIN WAS MOVING TOWARDS DEL RIO AND THE
SOUTHERN PART OF LAKE AMISTAD. BOATERS AND FISHERMEN ON LAKE AMISTAD
AND AREA RIVERS SHOULD MAKE PREPARATIONS TO MOVE TO SHORE AND A PLACE OF
SAFETY IF THUNDER IS HEARD...LIGHTNING IS SEEN OR WINDS BEGIN
INCREASING.

STAY TUNED TO YOUR LOCAL NOAA WEATHER RADIO...TV AND RADIO STATIONS FOR
FURTHER STATEMENTS OR WARNINGS.
Special weather statement, May 18, 5:38 PM CDT, 2 hours 37 minutes before
TXZ030-034-182330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
530 PM CDT MON MAY 18 1992

...FUNNEL CLOUDS REPORTED NEAR SAN SABA...

AT 525 PM...THE SHERIFFS OFFICE IN SAN SABA RELAYED A REPORT TO THE
AUSTIN WEATHER SERVICE...OF SEVERAL FUNNEL CLOUDS IN THE AREA ABOUT
5 MILES OUTSIDE OF SAN SABA.  THEY WERE MOVING TO THE WEST VERY
SLOWLY.

RADAR SHOWS A FEW ISOLATED THUNDERSTORMS IN THAT AREA...BUT NONE AT
SEVERE LEVELS.  THESE FUNNEL CLOUDS APPEAR TO BE VERY TROPICAL IN
NATURE AND MAY PRODUCE SOME WIND DAMAGES AROUND SAN SABA COUNTY FOR
THE NEXT HOUR OR SO.

SO FAR NO DAMAGES HAVE OCCURRED AND THE FUNNELS CONTINUOUSLY DESCEND
RISE BACK INTO THE CLOUDS ON A RAPID BASIS.
DUGAN

                                                                     ]
Special weather statement, May 18, 5:43 PM CDT, 2 hours 32 minutes before
TXZ030-034-182330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
530 PM CDT MON MAY 18 1992

...FUNNEL CLOUDS REPORTED NEAR SAN SABA...

AT 525 PM...THE SHERIFFS OFFICE IN SAN SABA RELAYED A REPORT TO THE
AUSTIN WEATHER SERVICE...OF SEVERAL FUNNEL CLOUDS IN THE AREA ABOUT
5 MILES OUTSIDE OF SAN SABA.  THEY WERE MOVING TO THE WEST VERY
SLOWLY.

RADAR SHOWS A FEW ISOLATED THUNDERSTORMS IN THAT AREA...BUT NONE AT
SEVERE LEVELS.  THESE FUNNEL CLOUDS APPEAR TO BE VERY TROPICAL IN
NATURE AND MAY PRODUCE SOME WIND DAMAGES AROUND SAN SABA COUNTY FOR
THE NEXT HOUR OR SO.

SO FAR NO DAMAGES HAVE OCCURRED AND THE FUNNELS CONTINUOUSLY DESCEND
AND RISE BACK INTO THE CLOUDS ON A RAPID BASIS.
DUGAN

                                                                     ]
Special weather statement, May 18, 7:02 PM CDT, 1 hour 13 minutes before
TXZ034-035-038>041-190200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
703 PM CDT MON MAY 18 1992

...SHOWERS AND THUNDERSTORMS CONTINUE TO FORM OVER SOUTH CENTRAL TEXAS...

AT 655 PM THIS EVENING...WEATHER SERVICE RADAR INDICATED THAT SCATTERED
SHOWERS AND THUNDERSTORMS HAD BEGUN TO DEVELOP ALONG A NARROW BAND FROM
NEAR AUSTIN TO NEW BRAUNFELS AND ACROSS EASTERN BEXAR COUNTY TO PLEASANTON
AND COTULLA TO JUST NORTHWEST OF LAREDO AND INTO MEXICO.  SPOTTY HEAVY RAIN
WAS INDICATED WITH SOME THUNDERSTORMS IN THE DEVELOPING AREA.  THE AREA WAS
MOVING TOWARD THE EAST AT 5 MPH.

BECAUSE OF THE VERY SLOW MOVEMENT OF THESE SHOWERS AND THUNDERSTORMS...
RAIN ACCUMULATIONS WILL AVERAGE FROM 1/2 TO 1 INCH IN THE RAIN BAND...WITH
ISOLATED LOCATIONS POSSIBLY RECEIVING UP TO 2 INCHES.  IF THE MOVEMENT OF
THIS RAIN SYSTEM DOES NOT CHANGE...THE RAIN WILL BE MOVING INTO THE CITIES
OF SEGUIN...FLORESVILLE AND LAREDO SOMETIME BETWEEN 800 PM AND 900 PM THIS
EVENING.  BRIEF FLOODING OF LOW-LYING AREAS AND POORLY DRAINED LOCATIONS
COULD OCCUR.

ADDITIONAL WIDELY SCATTERED SHOWERS AND THUNDERSTORMS WERE LOCATED ACROSS
THE TEXAS HILL COUNTRY AND EDWARDS PLATEAU.  LITTLE MOVEMENT WAS INDICATED.
Special weather statement, May 18, 7:13 PM CDT, 1 hour 2 minutes before
TXZ034-036-190100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
710 PM CDT MON MAY 18 1992

...HEAVY RAINS AROUND AUSTIN...

AT 705 PM...RADAR SHOWED SHOWERS AND THUNDERSTORMS...A FEW WITH VERY
HEAVY RAINS... TO BE ALIGNING ALONG IH35...BETWEEN WACO...AUSTIN AND
SAN ANTONIO.   SEVERAL GAUGES FROM THE AUSTIN EOC ON THE SOUTH AND
WEST SIDE OF THE CITY HAD RECORDED OVER 1 AND 3/4 INCHES OF RAIN IN
THE LAST HOUR.  SO FAR WE HAVE ONLY TOTALED .01 HERE AT THE AIRPORT.

DUE TO THE SLOW MOVEMENT OF THE HEAVIER RAINS...SOME LOCALIZED STREET
AND LOW SPOT FLOODING MAY TAKE PLACE FOR THE NEXT HOUR OR SO.
DUGAN

                                                                     ]

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 9:00 AM CDTFlash Flood WarningEWXBexar2 hr

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.