Alert archive / Texas / Tornado Warnings in 1987

Tornado Warning 11, NWS Austin/San Antonio, TX

May 23, 1987Kinney County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at May 23, 1987, 10:17 PM CDT for Kinney County, Texas. It was in force for 58 min.

The area

The counties it named.

The facts

Issued
May 23, 1987, 10:17 PM CDT (03:17 UTC)
Expired
May 23, 1987, 11:15 PM CDT
In force
58 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Kinney 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, 3.3 hours before the alert went out and 41 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 1987-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2961 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 1987-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 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
2961 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
786 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
136 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 KSAT 240317
TORSAT
TXC271-240415-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
1017 PM CDT SAT MAY 23 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 1115 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTH TEXAS
          ...KINNEY
 
AT 1015 PM CDT...THE SHERIFFS OFFICE IN BRACKETTVILLE REPORTED
SEVERAL SIGHTINGS OF FUNNEL CLOUDS JUST SOUTH OF BRACKETTVILLE.  THE
THUNDERSTORM JUST SOUTH OF BRACKETTVILLE IS MOVING TOWARD THE NORTH
TOWARD THE TOWN OF BRACKETTVILLE AT 10 TO 15 MPH.  ALTHOUGH THE
SIGHTINGS ARE OF FUNNEL CLOUDS ALOFT...DUE TO DARKNESS...THESE FUNNEL
CLOUDS MAY NOT BE VISIBLE OR GIVE MUCH WARNING IF THEY SHOULD DEVELOP
INTO TORNADOES AND TOUCH GROUND.
 
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.
 C
LARGE HAIL...FREQUENT LIGHTNING AND VERY HEAVY RAIN WILL LIKELY
ACCOMPANY THIS STORM.
 
PLEASE LISTEN TO YOUR LOCAL RADIO...TV OR NOAA WEATHER RADIO STATION
LATER STATEMENTS OR WARNINGS REGARDING THIS SEVERE WEATHER EVENT.

What forecasters said that day

The local office's own words before this tornado 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, May 23, 8:29 PM CDT, 1 hour 48 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
830 PM CDT SAT MAY 23 1987

...A TORNADO WATCH CONTINUES IN EFFECT UNTIL 1000 PM CDT
FOR VAL VERDE COUNTY INCLUDING DEL RIO...

AT 825 PM CDT RAINSHOWERS WERE OBSERVED AT THE DEL RIO INTERNATIONAL
AIRPORT. RADAR ALSO INDICATED THUNDERSTORMS FROM 90 MILES SOUTH OF
DEL RIO TO 40 MILES NORTH OF DEL RIO. MOVEMENT WAS SLOWLY TO THE
EAST.

HEAVY RAIN...LARGE HAIL...DAMAGING WINDS...FREQUENT DANGEROUS
LIGHTNING AND FLOODING OF LOW LYING AREAS AND LOW WATER CROSSINGS IS
POSSIBLE WITH THESE STORMS.

BOATERS ON LAKE AMISTAD SHOULD KEEP A LOOKOUT AND BE PREPARED TO MOVE
TO SAFE HARBOR.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PEOPLE IN VAL VERDE COUNTY SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.
Special weather statement, May 23, 9:28 PM CDT, 49 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
930 PM CDT SAT MAY 23 1987

...SMALL STREAM FLOOD STATEMENT...

AT 925 PM CDT THE RIVER GAGE AT DRYDEN ROSE FROM 6.44 FEET TO
13.22 FEET.

CAMPERS AND CANOEISTS ALONG THE THE RIO GRANDE AND PECOS RIVERS
SHOULD PREPARE TO MOVE TO HIGHER GROUND. SOME FLOODING OF LOW WATER
CROSSINGS...LOW LYING AREAS AND SMALL STREAMS WILL LIKELY OCCUR AS
THE EXCESS RUNOFF COMES DOWN THE RIVERS. PARENTS SHOULD KEEP ALL
CHILDREN AWAY FROM THESE DANGEROUS FLOOD PRONE AREAS. MOTORISTS
SHOULD REMAIN ALERT AND NOT ATTEMPT TO DRIVE THROUGH FLOODED
CROSSINGS AS ROADS COULD POSSIBLY BE WASHED OUT.

The office that day

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

IssuedProductOfficeCountiesLasted
May 23, 11:32 PM CDTSevere Thunderstorm WarningEWXVal Verde58 min
May 24, 6:16 PM CDTSevere Thunderstorm WarningEWXBurleson, Lee59 min

Nearby

Tornado Warnings in Texas, 1987Every tornado warning in 1987Tornadoes in 1987

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.