Alert archive / Texas / Flash Flood Warnings in 1987

Flash Flood Warning 86, NWS Austin/San Antonio, TX

June 13, 1987Kerr County, Real County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jun 13, 1987, 1:46 PM CDT for Kerr County, Real County, Texas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jun 13, 1987, 1:46 PM CDT (18:46 UTC)
Expired
Jun 13, 1987, 4:45 PM CDT
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Kerr County, TX, Real 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

Del Rio, TX (KDRT), launched 12:00Z, 6.8 hours before the alert went out and 137 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, Del Rio, TX at 12:00Z on 1987-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1983 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, Del Rio, TX at 12:00Z on 1987-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 square meters per square second.193958Sfc1 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
1983 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
910 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
52 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 KSAT 131846
FFWSAT
TXC265-385-132145-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
146 PM CDT SAT JUN 13 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL  445 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTH TEXAS
          ...KERR...REAL
 
STRONG THUNDERSTORMS WITH VERY HEAVY RAINS CONTINUE TO BUILD OVER
REAL AND KERR COUNTIES.  UP TO THREE INCHES OF RAIN HAVE FALLEN
ALREADY FROM STORMS EARLIER TODAY AND THESE ADDITIONAL STORMS WILL
LIKELY CAUSE FLASH FLOODING.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN
REPORTED.
 
REMEMBER...DEATHS DURING FLASH FLOODING ARE FREQUENTLY RELATED TO
MOTORISTS DRIVING INTO FLOODED LOW WATER CROSSINGS OR FROM CHILDREN
PLAYING NEAR FLOODED STREAMS OR DRAINAGE AREAS.
 
A FLASH FLOOD WARNING CONTINUES IN EFFECT FOR KINNEY AND UVALDE
COUNTIES UNTIL 300 PM.  STRONG THUNDERSTORMS CONTINUE ACROSS PORTIONS
OF KINNEY AND UVALDE COUNTY.  RAINFALL RATES OF THREE TO FOUR INCHES
PER HOUR ARE INDICATED BY RADAR IN THESE THUNDERSTORMS.
 
THE FLASH FLOOD WARNINGS FOR MCMULLEN AND BANDERA COUNTIES ARE NO
LONGER IN EFFECT.  THUNDERSTORMS WHICH WEyRE IN THOSE COUNTIES THIS
MORNING HAVE MOVED SOUTHEASTWARD AWAY FROM THAT AREA.

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, 10:07 AM CDT, 3 hours 39 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, 11:23 AM CDTFlash Flood WarningEWXBastrop, Caldwell3 hr
Jun 13, 12:06 PM CDTFlash Flood WarningEWXKinney, Uvalde3 hr
Jun 13, 12:16 PM CDTFlash Flood WarningEWXTravis3 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.