Alert archive / Texas / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 16, NWS Austin/San Antonio, TX

April 8, 1986Blanco County, Gillespie County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 8, 1986, 5:24 PM CST for Blanco County, Gillespie County, Texas. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Apr 8, 1986, 5:24 PM CST (23:24 UTC)
Expired
Apr 8, 1986, 6:30 PM CST
In force
66 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Blanco County, TX, 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

Stephenville/Cla, TX (KSEP), launched 12:00Z, 11.4 hours before the alert went out and 221 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, Stephenville/Cla, TX at 12:00Z on 1986-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 951 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, Stephenville/Cla, TX at 12:00Z on 1986-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 206 square meters per square second.19395878Sfc1 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
951 J/kg
Mixed-layer CIN
-425 J/kg
Mixed-layer LCL
1229 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
206 m²/s²
0-3 km storm-relative helicity
185 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 082324
SVRAUS
TXC031-171-090030-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN TX
524 PM CST TUE APR 8 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 630 PM CST FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

TEXAS...BLANCO AND GILLESPIE

AT 520 PM CST A SEVERE THUNDERSTORM WAS LOCATED 5 MILES SOUTH OF
FREDERICKSBURG IN GILLESPIE COUNTY.  THIS STORM AND SEVERAL OTHERS
LOCATED JUST SOUTH IN KENDALL AND KERR COUNTIES ARE MOVING EAST
AT 20 MILES PER HOUR.  PERSONS IN GILLESPIE AND BLANCO COUNTIES
SHOULD BE ALERT FOR THE POSSIBILITY OF SEVERE WEATHER AS THESE
STORMS RAPIDLY DEVELOP.

FREQUENT LIGHTNING..STRONG DAMAGING WIND AND POSSIBLE HAIL MAY
ACCOMPANY THIS STORM.

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

PLEASE LISTEN TO THIS STATION FOR LATER STATEMENTS REGARDING THIS
SEVERE WEATHER EPISODE.

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, Apr 8, 3:03 PM CST, 2 hours 21 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
330 PM CST TUE APR 8 1986

...COLD FRONT IN STORE FOR SOUTH TEXAS TONIGHT...

AN USUALLY STRONG SPRING COLD FRONT WAS LOCATED OVER NORTH CENTRAL
TEXAS AT MID AFTERNOON TODAY.  STRONG NORTH WINDS GUSTING TO 25 TO 30
MILES AN HOUR WERE BEING REPORTED BEHIND THE FRONT..ALONG WITH CLOUDY
SKIES AND TEMPERATURES IN THE 60S AND 70S.  SHOWERS WERE DEVEOPING
ALONG THE FRONT WHICH STRETCHED FROM NEAR LONGVIEW TO WACO TO SAN
ANGELO AT 300 PM THIS AFTERNOON.

THE COLD FRONT WILL BE MOVING INTO THE NORTHERN PORTIONS OF SOUTH
TEXAS WITHIN THE NEXT TWO HOURS AND TO NEAR THE MID TEXAS COAST BY
EARLY WEDNESDAY MORNING.  THUNDERSTORMS ARE EXPECTED TO CONTINUE
ALONG THE FRONT AS IT MOVES INTO SOUTH CENTRAL AND SOUTHEAST TEXAS.
SOME OF THESE WILL HAVE THE POTENTIAL FOR PRODUCING HAIL..DAMAGING
WINDS AND BRIEF BUT VERY HEAVY RAINFALL.  MOTORISTS ARE ESPECIALLY
CAUTIONED AGAINST THE THREAT OF LOWERED VISIBILITY AND HAZARDOUS
DRIVING IN AND AROUND THE HEAVIER STORMS.

WINDS ALONG THE COASTAL AREAS WILL SHIFT RAPIDLY AS THE FRONT
PASSES..GUSTING TO 20 TO 30 MILES AN HOUR ALONG THE UPPER COAST
TONIGHT AND ALONG THE MIDDLE COAST EARLY WEDNESDAY MORNING.  BOATERS
SHOULD BE ALERT TO THE ABRUPTLY SHIFTING WINDS.
Special weather statement, Apr 8, 5:00 PM CST, 24 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
500 PM CST TUE APR 8 1986

 ...HEAVY THUNDERSTORMS BUILDING NEAR VAL VERDE COUNTY...

AT 430 PM A LINE OF THUNDERSTORMS WAS BUILDING TO THE SOUTHWEST FROM
NEAR JUNCTION..IN THE TEXAS HILL COUNTRY..TO 60 MILES WEST OF DEL RIO
AND MOVING TO THE SOUTHEAST AT 10 MPH.  THESE THUNDERSTORMS APPEAR TO
BE BUILDING RAPIDLY AND HAVE THE POTENTIAL TO BECOME SEVERE. THE
STRONGEST THUNDERSTORM WAS LOCATED IN MEXICO ABOUT 50 MILES SOUTHWEST
OF DEL RIO.

AT THE PRESENT TIME THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING SMALL
HAIL..HEAVY RAINFALL AND DAMAGING SURFACE WINDS OF 50 TO 60 MPH.
PERSONS IN VAL VERDE COUNTY OF TEXAS SHOULD 9STAY TUNED TO A LOCAL
SOURCE OF WEATHER INFORMATION AND BE PREPARED TO MOVE TO A SAFE
SHELTER IF A WARNING IS ISSUED.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 8, 4:50 PM CSTSevere Thunderstorm WarningEWXKendall, Kerr70 min
Apr 8, 5:55 PM CSTSevere Thunderstorm WarningEWXKerr, Real65 min
Apr 8, 5:55 PM CSTSevere Thunderstorm WarningEWXKendall65 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.