Alert archive / Texas / Flash Flood Warnings in 1986

Flash Flood Warning 60, NWS Austin/San Antonio, TX

September 26, 1986Kerr County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Sep 26, 1986, 5:13 AM CDT for Kerr County, Texas. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Sep 26, 1986, 5:13 AM CDT (10:13 UTC)
Expired
Sep 26, 1986, 9:00 AM CDT
In force
4 hr
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Kerr 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, 10.2 hours before the alert went out and 163 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 1986-09-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2011 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 1986-09-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 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
2011 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
1366 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 261013
FFWSAT
TXC265-261400-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
513 AM CDT FRI SEP 26 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 900 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

SOUTH CENTRAL TEXAS...KERR

AT 500 AM CDT A STRONG THUNDERSTORM WAS LOCATED IN CENTRAL KERR
COUNTY.  ALREADY AS MUCH AS 4 TO 6 INCHES OF RAIN HAS FALLEN FROM
THIS THUNDERSTORM IN WESTERN KERR COUNTY ALONG FARM ROAD 1340.
SIGNIFICANT RISES ARE POSSIBLE ON THE HEADWATERS OF THE GUADALUPE
RIVER WEST OF HUNT THIS MORNING.  LOCALIZED FLOODING OF SMALL
CREEKS AND LOW WATER CROSSINGS IS ALSO LIKELY.

THE THUNDERSTORMS WAS MOVING OVER CENTRAL KERR COUNTY AND HEAVY
RAINS CAN BE EXPECTED IN HUNT AND MOUNTAIN HOME DURING THE NEXT
FEW HOURS.

A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT OR HAS BEEN
REPORTED.  TAKE NECESSARY PRECAUTIONS AS REQUIRED TO PROTECT LIFE
AND PROPERTY.

REMEMBER..DEATHS DURING FLASH FLOODING ARE FREQUENTLY RELATED TO
MOTORISTS DRIVING INTO FLOODED LOW WATER CROSSINGS.

IF THREATENING WEATHER APPROACHES..YOU SHOULD GO TO A SAFE PLACE
IMMEDIATELY.  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 STATION
FOR LATER STATEMENTS OR WARNINGS REGARDING THIS HEAVY RAIN EVENT.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 26, 1:34 AM CDTFlash Flood WarningEWXReal4 hr
Sep 26, 8:59 AM CDTFlash Flood WarningEWXKerr2 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.