Alert archive / Texas / Flash Flood Warnings in 1987

Flash Flood Warning 83, NWS Austin/San Antonio, TX

June 13, 1987Bastrop County, Caldwell County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jun 13, 1987, 11:23 AM CDT for Bastrop County, Caldwell County, Texas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jun 13, 1987, 11:23 AM CDT (16:23 UTC)
Expired
Jun 13, 1987, 2:30 PM CDT
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Bastrop County, TX, Caldwell County, TX

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Victoria Regiona, TX (KVCT), launched 12:00Z, 4.4 hours before the alert went out and 136 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, Victoria Regiona, TX at 12:00Z on 1987-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1986 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, Victoria Regiona, TX at 12:00Z on 1987-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 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
1986 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
520 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
59 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAUS 131623
FFWAUS
TXC021-055-131930-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN TX
1123 AM CDT SAT JUN 13 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 230 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF

TEXAS...BASTROP AND EASTERN CALDWELL

AT 1020 AM CDT AN INTENSE THUNDERSTORMS WITH VERY HEAVY RAIN
FALL EXCEEDING 2 INCHES AN HOUR WERE LOCATED IN BASTROP
COUNTY AND IN THE EAST PORTION OF CALDWELL COUNTY. THESE
STORMS HAVE SHOWN ONLY SLIGHT MOVEMENT TO THE SOUTHEAST
DURING THE LAST HOUR.

THIS IS A DANGEROUS SITUATION.  TAKE APPROPRIATE ACTION.

REMEMBER THAT DEATHS DURING FLASH FLOODING ARE OFTEN RELATED TO
MOTORISTS DRIVING THROUGH FLOODED LOW WATER CROSSINGS.

 HUTTO RECEIVED 1.75 INCHES OF RAIN IN 45 MINUTES AND CEDAR CREEK
 MEASURED 41/2 INCHES OVERNIGHT... INCLUDING 21/4 INCHES THIS
 MORNING.

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, Jun 13, 7:06 AM CDT, 4 hours 17 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
710 AM CDT SAT JUN 13 1987

AT 700 AM CDT THIS MORNING A HEAVY THUNDERSTORM WAS LOCATED OVER
CENTRAL BEXAR COUNTY WITH LIGHT TO MODERATE SHOWERS OVER THE REST
OF BEXAR COUNTY.  THE THUNDERSTORM OVER NORTH CENTRAL SAN ANTONIO HAS
SHOWN LITTLE MOVEMENT IN THE PAST HOUR.  HEAVY RAINS ARE FALLING FROM
THIS THUNDERSTORM AND A FLASH FLOOD WARNING MAY BE ISSUED FOR BEXAR
COUNTY IF THIS THUNJDERSTORM REMAINS STRONG AND NEARLY STATIONARY.

ADDITIONAL STATEMENTS WILL BE ISSUED AS NECESSARY.
Special weather statement, Jun 13, 10:07 AM CDT, 1 hour 16 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
1000 AM CDT SAT 13 JUN 1987

...SEVERAL SMALL AREAS OF HEAVY RAIN CONTINUE TO PLAGUE CENTRAL TEXAS...

MODERATE SHOWERS ARE MOVING SOUTH OUT OF GILLESPIE COUNTY... BUT RAIN
DURING THE PAST 3 HOURS HAS TOTALED 1 TO 2 INCHES AVERAGE OVER THE
COUNTY.

ANOTHER LARGER AREA AND MORE SIGNIFICANT AREA OF HEAVY RAIN IS LOCATED
IS EASTERN CALDWELL COUNTY AND SOUTHERN BASTROP COUNTY... MOVING INTO
FAYETTE COUNTY. CEDAR CREEK MEASURED 21/4 INCHES OF RAIN WITH THIS STORM
BETWEEN 7 AND 830 AM THIS MORNING. THIS STORM IS MOVING VERY SLOWLY EAST
AND WILL LIKELY CAUSE SOME LOCALIZED FLASH FLOODING OF CREEKS AND SMALL
STREAMS FOR THE NEXT F;EW HOURS.

OTHER HEAVY RAIN EXTENDS FROM GEORGETOWN TO TAYLOR AND CALDWELL.
THESE HEAVY RAIN AREAS SEEM TO FLARE VERY QUICKLY TODAY... SO ALL
RESIDENTS OF CENTRAL TEXAS SHOULD REMAIN ALERT FOR HEAVY RAIN.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 10:17 PM CDTFlash Flood WarningEWXBlanco, Gillespie3 hr
Jun 12, 10:17 PM CDTFlash Flood WarningEWXBurnet, Hays, Travis, Williamson3 hr
Jun 13, 7:20 AM CDTFlash Flood WarningEWXBexar, Medina4 hr
Jun 13, 8:21 AM CDTFlash Flood WarningEWXAtascosa3 hr
Jun 13, 11:15 AM CDTFlash Flood WarningEWXMcMullen2 hr
Jun 13, 12:06 PM CDTFlash Flood WarningEWXKinney, Uvalde3 hr
Jun 13, 12:16 PM CDTFlash Flood WarningEWXTravis3 hr
Jun 13, 1:46 PM CDTFlash Flood WarningEWXKerr, Real3 hr
Jun 13, 2:28 PM CDTFlash Flood WarningEWXBlanco, Burnet, Travis3 hr
Jun 13, 2:28 PM CDTFlash Flood WarningEWXWilliamson3 hr
Jun 13, 5:05 PM CDTFlash Flood WarningEWXVal Verde4 hr

Nearby

Flash Flood Warnings in Texas, 1987Every flash flood warning in 1987

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.