Alert archive / Texas / Tornado Warnings in 1986

Tornado Warning 1, NWS Austin/San Antonio, TX

April 29, 1986Webb County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Apr 29, 1986, 8:18 PM CDT for Webb County, Texas. It was in force for 22 min.

The area

The counties it named.

The facts

Issued
Apr 29, 1986, 8:18 PM CDT (01:18 UTC)
Expired
Apr 29, 1986, 8:40 PM CDT
In force
22 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Webb 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, 1.3 hours before the alert went out and 232 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 1986-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1638 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 1986-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.193958Sfc1 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
1638 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
1248 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
116 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 300118
TORSAT
TXC479-300215-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
818 PM CDT TUE APR 29 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 915 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

TEXAS...WEBB

AT 755 PM CDT A TORNADO WAS REPORTED BY THE DEPARTMENT OF PUBLIC
SAFETY AT THE AIRPORT IN LAREDO.  DAMAGE WAS REPORTED TO A HANGAR
AND A WAREHOUSE AT THE AIRPORT. AT THE PRESENT TIME RADAR INDICATES
A SEVERE THUNDERSTORM ABOUT 20 MILES NORTHEAST OF LAREDO MOVING
TO THE NORTHEAST.

IF YOU ARE IN THE PATH OF THIS STORM..GO TO A BASEMENT SHELTER
OR A CENTRAL INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUILDING.  ABANDON CARS AND MOBILE HOMES FOR A REINFORCED BUILDING.

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

PLEASE LISTEN TO Y	OUR LOCAL RADIO..TV OR NOAA WEATHER RADIO STATION
FOR LATER STATEMENTS OR WARNINGS REGARDING THIS SEVERE WEATHER
EVENT.

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.