Alert archive / Texas / Tornado Warnings in 1986

Tornado Warning 17, NWS Austin/San Antonio, TX

June 19, 1986Calhoun County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Jun 19, 1986, 7:30 AM CDT for Calhoun County, Texas. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Jun 19, 1986, 7:30 AM CDT (12:30 UTC)
Expired
Jun 19, 1986, 8:00 AM CDT
In force
30 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Calhoun 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, 0.5 hours before the alert went out and 53 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 1986-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1871 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, Victoria Regiona, TX at 12:00Z on 1986-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -47 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
1871 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
632 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-47 m²/s²
0-3 km storm-relative helicity
-30 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 KVCT 191230
TORVCT
TXC057-191300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE VICTORIA TX
730 AM CDT THU JUN 19 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO AND SPECIAL 
MARINE WARNING EFFECTIVE UNTIL 800 AM CDT FOR PEOPLE IN THE 
FOLLOWING COUNTY OF

TEXAS...CALHOUN
...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE
COUNTY JUST MENTIONED

AT 720 AM CDT  A TORNADO...WAS REPORTED BY A HELICOPTER
BETWEEN TIVOLI AND GREEN LAKE.  MOVEMENT UNKNOWN.

RADAR INDICATES A SMALL MODERATE THUNDERSHOWER IN THAT
VICINITY AND MOVING NORTHWEST AT ABOUT 15 MILES AN HOUR.

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 SHOULD ASK THE NEAREST LAW ENFORCEMENT AGENCY
  TO RELAY YOUR SEVERE WEATHER REPORTS TO THE LOCAL NATIONAL 8WEATHER
  SERVICE OFFICE.

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

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 5:52 AM CDTFlash Flood WarningEWXUvalde3 hr
Jun 19, 7:37 AM CDTFlash Flood WarningEWXReal3 hr

Nearby

Tornado Warnings in Texas, 1986Every tornado warning in 1986Tornadoes 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.