Alert archive / Texas / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 92, NWS Austin/San Antonio, TX

November 24, 1986Bastrop County, Fayette County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Nov 24, 1986, 5:35 PM CST for Bastrop County, Fayette County, Texas. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Nov 24, 1986, 5:35 PM CST (23:35 UTC)
Expired
Nov 24, 1986, 6:30 PM CST
In force
55 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Bastrop County, TX, Fayette 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, 11.6 hours before the alert went out and 129 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 1986-11-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 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 1986-11-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 243 square meters per square second.1939587897117Sfc1 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
1 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
577 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
243 m²/s²
0-3 km storm-relative helicity
386 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAAOO KAUS 242335
SVRAUS
TXC021-149-250030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN TX
535 PM CST MON NOV 24 1986
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL  630 PM CST FOR PEOPLE IN THE FOLLOWING COUNTIES:
 
IN SOUTH CENTRAL TEXAS
          ..BASTROP..FAYETTE

AT 530 PM AUSTIN WEATHER RADAR INDICATED THUNDERSTORMS WITH VERY
HEAVY RAIN AT THE SOUTHERN INTERSECTION OF BASTROP AND FAYETTE
COUNTIES. THESE THUNDERSTORMS HAVE A HISTORY OF DAMAGING HAIL AS THEY
MOVED ACROSS GONZALES COUNTY. THEY ARE MOVING TOWARD THE NORTH AT 30
MPH.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH,
DESTRUCTIVE HAIL, DEADLY LIGHTNING AND VERY HEAVY RAIN.  FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO DOJN'T DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

What forecasters said that day

The local office's own words before this severe thunderstorm 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, Nov 24, 2:48 PM CST, 2 hours 47 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
248 PM CST MON NOV 24 1986

AT 245 PM CST RADAR SHOWS RAIN...ALONG WITH SHOWERS AND
THUNDERSTORMS FROM DEL RIO TO LOMA ALTA TO SONORA. ANOTHER
AREA OF SHOWERS AND THUNDERSTORMS WERE LOCATED FROM WEST OF
COMSTOCK TO OZONA. MOVEMENT WAS TO THE NORTHEAST AT 15 MPH.

LIGHTNING HAS BEEN OBSERVED WITH THESE STORMS. BOATERS ON LAKE
AMISTAD SHOULD BE PREPARED TO SEEK SAFE HARBOR UNTIL THE
THUN!DERSTORMS HAVE PASSED.

STAYED TUNED TO YOUR NATIONAL WEATHER SERVICE RADIO FOR FURTHER
STATEMENTS.
Special weather statement, Nov 24, 5:07 PM CST, 28 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
506 PM CST MON NOV 24 1986

AT 455 PM CST RADAR SHOWS THUNDERSTORMS AND RAINSHOWERS
WERE SOUTHWEST OF COMSTOCK AND EXTENDED NORTHEAST TO
SONORA. MOVEMENT WAS TO THE NORTHEAST AT 20 MILES AN HOUR.

RAIN...STRONG WINDS AND THE TEMPERATURE FALLING INTO THE 30S TONIGHT
WILL PRODUCE STRESS ON LIVESTOCK AND PETS. SMALL AND YOUNG ANIMALS
WILL NEED SPECIAL CARE AND SHELTER...LIVESTOCK SHOULD BE GIVEN EXTRA
FEED AND SHELTER.

LAKE WIND ADVISORY REMAINS IN EFFECT FOR LAKE AMISTAD
TONIGHT.

STAYED TUNED TO YOUR NATIONAL WEATHER SERVICE RADIO FOR FURTHER
STATEMENTS.
Special weather statement, Nov 24, 5:24 PM CST, 11 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
520 PM CST MON NOV 24 1986

AT 515 PM CST OUR LOCAL WEATHER RADAR SHOWED SEVERAL THUNDERSTORMS
WITH HEAVY RAIN... STRONG GUSTY WIND AND SMALL HAIL MOVING ACROSS THE
COLORADO RIVER WATERSHED SOUTHEAST OF AUSTIN. DIME SIZE HAIL WAS
OBSERVED WITH THESE SAME STORMS AS THEY MOVED ACROSS GONZALES COUNTY
AND HAIL WAS REPORTED BY THE TEXAS DEPARTMENT OF PUBLIC SAFETY IN KARNES
COUNTY.
4
THESE THUNDERSTORMS ARE MOVING NORTH AT 30 MILES AN HOUR.

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 24, 4:34 PM CSTSevere Thunderstorm WarningEWXGonzales56 min
Nov 24, 5:23 PM CSTSevere Thunderstorm WarningEWXKarnes67 min
Nov 24, 5:36 PM CSTSevere Thunderstorm WarningEWXGonzales69 min

Nearby

Severe Thunderstorm Warnings in Texas, 1986Every severe thunderstorm 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.