Alert archive / Texas / Flash Flood Warnings in 1986

Flash Flood Warning 35, NWS Austin/San Antonio, TX

June 6, 1986Gillespie County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jun 6, 1986, 8:27 PM CDT for Gillespie County, Texas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jun 6, 1986, 8:27 PM CDT (01:27 UTC)
Expired
Jun 6, 1986, 11:30 PM CDT
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Gillespie 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 00:00Z, 1.5 hours before the alert went out and 211 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 00:00Z on 1986-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3153 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 00:00Z on 1986-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 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
3153 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1285 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
69 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 070127
FFWAUS
TXC171-070430-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN TX
827 PM CDT FRI JUN 6 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 1130 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

TEXAS...GILLESPIE

AT 815  PM CDT HEAVY THUNDERSTORM WERE MOVING ACROSS GILLESPIE
COUNTY. THUNDERSTORMS WERE SCATTERED OVER THE AREA FROM JUST WEST
OF JOHNSON CITY WESTWARD ACROSS GILLESPIE COUNTY TO NEAR MASON..
JUNCTION AND KERRVILLE. THUNDERSTORMS HAVE PRODUCED RAINS OF ABOUT
FOUR INCHES IN NORTHWEST PART OF THE COUNTY NEAR DOSS.

THESE THUNDERSTORMS ARE MOVING SOUTHEAST AT NEAR 10 MPH AND HAVE
DECREASED A LITTLE DURING THE LAST HOUR.

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

IF THREATENING WEATHER APPROACHES..YOU SHOULD GO TO A SAFE PLACE
IMMEDIATELY AND YOU SHOULD ASK THE NEAREST LAW ENFORCEMENT AGENCY
TO RELAY YOUR SEVERE WEATHER REPORTS TO THE LOCAL NATIONAL WEATHER
SERVICE OFFICE.

PLEASE LISTEN TO YOUR LOCAL RADIO..TV..OR NOAA WEATHER RADIO FOR
LATER STATEMENTS REGARDING THIS HEAVY RAIN EPISODE.

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 6, 5:00 PM CDT, 3 hours 27 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
500 PM CDT FRI JUN 6 1986

AT 455 PM CDT RADAR INDICATED A LINE OF THUNDERSTORMS FROM 25 MILES
WEST OF DEL RIO TO 80 MILES SOUTHWEST OF DEL RIO. THESE STORMS WERE
MOVING TO THE EAST AT 10 MILES AN HOUR.

HEAVY RAIN..SMALL HAIL..STRONG WINDS..AND FREQUENT LIGHTNING ARE
POSSIBLE WITH THESE STORMS.

LISTEN TO NATIONAL WEATHER SERVICE RADIO FOR FURTHER STATEMENTS AND
POSSIBLE WA>RNINGS.
Special weather statement, Jun 6, 6:29 PM CDT, 1 hour 58 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
630 PM CDT FRI JUN 6 1986

      ...THUNDERSTORMS THREATENING SOUTH CENTRAL TEXAS...

AT 625 PM CDT..NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
THUNDERSTORMS EXTENDING FROM NEAR MASON TO JUST WEST OF JUNCTION AND
INTO EXTREME NORTHERN EDWARDS COUNTY.  A FEW OF THE STORMS WITHIN THE
LINE WERE QUITE STRONG..PRODUCING VERY HEAVY RAINFALL.  THE STRONGEST
THUNDERSTORM WAS LOCATED JUST SOUTHWEST OF MASON.  THE ENTIRE LINE WAS
MOVING EAST AT 15 MILES AN HOUR.

THIS LINE HAS DEVELOPED ALONG THE LEADING EDGE OF RAIN-COOLED AIR
PRODUCED FROM THUNDERSTORMS NEAR THE SAN ANGELO AND ABILENE AREAS.  THE
TENDENCY OVER THE PAST FEW HOURS HAS BEEN FOR THIS LINE TO DEVELOP
TOWARD THE SOUTHWEST..THEREBY POSING MORE OF A THREAT TO PERSONS IN
EDWARDS..REAL AND KERR COUNTIES.  EARLIER THIS AFTERNOON..RAINFALL IN
EXCESS OF TWO INCHES FELL NEAR OZONA AS THIS LINE MOVED THROUGH.
<
RESIDENTS OF SOUTH CENTRAL TEXAS..ESPECIALLY IN THE COUNTIES OF EDWARDS
..REAL AND KERR SHOULD MONITOR THE WEATHER CLOSELY FOR THE NEXT FEW
HOURS.  THE STRONGER THUNDERSTORMS CAN BE EXPECTED TO PRODUCE HEAVY
RAIN..FREQUENT LIGHTNING..STRONG GUSTY WIND AND POSSIBLE SMALL HAIL AS
THEY CONTINUE TO MOVE EAST.  STAY TUNED TO LOCAL RADIO..TELEVISION OR
NOAA WEATHER RADIO FOR ADDITIONAL STATEMENTS OR WARNINGS.
Special weather statement, Jun 6, 6:33 PM CDT, 1 hour 54 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
625 PM CDT FRI JUN 06 1986

...ISOLATED HEAVY THUNDERSTORM OVER PARTS OF THE HILL COUNTRY...

AT 620 PM CDT RADAR INDICATED ISOLATED VERY HEAVY THUNDERSTORMS FROM
NORTH OF FREDERICKSBURG NORTHWEST THROUGH THE MASON AND BRADY AREA TO
SOUTHEAST OF SAN ANGELO. OTHER ISOLATED THUNDERSTORMS WERE LOCATED
NEAR TAYLOR AND NORTH OF COLLEGE STATION WITH ONLY LIGHT RAIN FROM
THE KILLEEN AND LAMPASAS AREA TO NEAR HAMILTON.

THESE THUNDERSTORMS WERE MOVING SOUTHEAST AT NEAR 10 MPH.

FLOODING OF LOW WATER CROSSINGS IS POSSIBLE OVER SOUTHWESTERN LLANO
AND NORTHERN GILLESPIE COUNTIES. THERE IS ALSO THE POSSIBILITY OF
SOME LOW WATER CROSSINGS FLOODED IN LAMPASAS AND MILLS FROM HEAVY
THUNDERSTORMS IN THIS AREA LATE THIS AFTERNOON.

TRAVEL WITH CAUTION IN THESE AREAS THE NEXT FEW HOURS.
Special weather statement, Jun 6, 7:43 PM CDT, 44 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
745 PM CDT FRI JUN 6 1986

A LINE OF THUNDERSTORMS WAS MOVING SOUTHEAST INTO NORTHERN EDWARDS AND
KERR COUNTIES.  REPORTS FROM LOCATIONS WITHIN KIMBLE COUNTY TO THE NORTH
INDICATED THAT SOME OF THESE THUNDERSTORMS PRODUCED RAIN OF NEAR TWO
INCHES IN LESS THAN AN HOUR.  THE STRONGEST STORMS EXTENDED FROM EAST OF
JUNCTION IN KIMBLE COUNTY TO JUST NORTH OF ROCKSPRINGS IN EDWARDS COUNTY.

RESIDENTS OF EDWARDS..KERR AND REAL COUNTIES SHOULD REMAIN ALERT TO THE
POSSIBILITY OF HEAVY RAIN.  LOW-LYING OR FLOOD-PRONE AREAS..ESPECIALLY
NEAR THE HEADWATERS OF THE GUADALUPE RIVER ARE PARTICULARLY VULNERABLE.
GROUND CONDITIONS ACROSS THE AREA ARE STILL RATHER MOIST FROM THE RAINS
OF EARLIER THIS WEEK..SO HEAVY RAIN IS LIKELY TO PRODUCE RAPID RUNOFF
..THUS ADDING TO ANY FLOOD PROBLEMS.

STAY TUNED TO NOAA WEATHER RADIO FOR ADDITIONAL STATEMENTS OR WARNINGS.
Special weather statement, Jun 6, 8:23 PM CDT, 4 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
823 PM CDT FRI JUN 6 1986

STRONG THUNDERSTORMS WITH HEAVY RAINS WERE ABOUT 20 MILES NORTHEAST OF
LOMA ALTA ON HIGHWAY 277.  THE HEAVY RAINS CONTINUED IN THIS AREA FOR
ABOUT 2 HOURS. SOME REPORTS OF UP TO 2 AND 1/2 INCHES HAVE BEEN
REPORTED WITH THESE THUNDERSTORMS IN A HOUR.

PERSONS DRIVING ON HIGHWAY 277 NORTH..OR VACATIONING ALONG THE DRY
DEVILS RIVER IN THE NORTHEAST PART OF VAL VERDE COUNTY SHOULD BE ALERT
TO THE POSSIBILITY OF FLOODED LOW WATER CROSSINGS..OR RAPID RISES OF
WATER IN DRAWS AND CREEK BEDS.

IF YOU OBSERVE ANY AMOUT WATER COMING DOWN A DRAW OR CREEK BED IN
NORTHEAST PART OF VAL VERDE COUNTY..DO NOT WAIT..MOVE TO HIGHER GROUND
IMMEDIATELY. A SMALL TRICKLE CAN BECOME A LIFE THREATING TORRENT OF
WATER IN MINUTES.

YOU SHOULD REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY OR TO
THE NATIONAL WEATHER SERVICE.
Special weather statement, Jun 6, 8:24 PM CDT, 3 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
823 PM CDT FRI JUN 6 1986

STRONG THUNDERSTORMS WITH HEAVY RAINS WERE ABOUT 20 MILES NORTHEAST OF
LOMA ALTA ON HIGHWAY 277.  THE HEAVY RAINS CONTINUED IN THIS AREA FOR
ABOUT 2 HOURS. SOME REPORTS OF UP TO 2 AND 1/2 INCHES HAVE BEEN
REPORTED WITH THESE THUNDERSTORMS IN A HOUR.

PERSONS DRIVING ON HIGHWAY 277 NORTH..OR VACATIONING ALONG THE DRY
DEVILS RIVER IN THE NORTHEAST PART OF VAL VERDE COUNTY SHOULD BE ALERT
TO THE POSSIBILITY OF FLOODED LOW WATER CROSSINGS..OR RAPID RISES OF
WATER IN DRAWS AND CREEK BEDS.

IF YOU OBSERVE ANY AMOUNT WATER COMING DOWN A DRAW OR CREEK BED IN
NORTHEAST PART OF VAL VERDE COUNTY..DO NOT WAIT..MOVE TO HIGHER GROUND
IMMEDIATELY. A SMALL TRICKLE CAN BECOME A LIFE THREATING TORRENT OF
WATER IN MINUTES.

YOU SHOULD REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY OR TO
THE NATIONAL WEATHER SERVICE.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 10:29 PM CDTFlash Flood WarningEWXBlanco91 min
Jun 6, 10:36 PM CDTFlash Flood WarningEWXEdwards2 hr
Jun 6, 11:09 PM CDTFlash Flood WarningEWXBexar111 min
Jun 7, 12:55 AM CDTFlash Flood WarningEWXVal Verde2 hr

Nearby

Flash Flood Warnings in Texas, 1986Every flash flood warning in 1986

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.