Alert archive / Texas / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 152, NWS Austin/San Antonio, TX

September 10, 1987Edwards County, Kerr County, Real County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Sep 10, 1987, 4:28 PM CDT for Edwards County, Kerr County, Real County, Texas. It was in force for 62 min.

The area

The counties it named.

The facts

Issued
Sep 10, 1987, 4:28 PM CDT (21:28 UTC)
Expired
Sep 10, 1987, 5:30 PM CDT
In force
62 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Edwards County, TX, Kerr County, TX, Real 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 12:00Z, 9.5 hours before the alert went out and 118 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 12:00Z on 1987-09-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1659 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 12:00Z on 1987-09-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 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
1659 J/kg
Mixed-layer CIN
-156 J/kg
Mixed-layer LCL
1198 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 102128
SVRSAT
TXC137-265-385-102230-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
428 PM CDT THU SEP 10 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 530 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTH TEXAS
          ...EDWARDS...KERR...REAL
 
AT 425 PM CDT...A LINE OF THUNDERSTORMS WAS INDICATED BY RADAR FROM
ROCKSPRINGS TO JUNCTION TO AUSTIN...MOVING TOWARD THE SOUTHEAST AT 25
MPH.  THESE STORMS ARE EXPECTED TO MOVE INTO THE KERRVILLE AREA WITHIN
THE HOUR.
 
A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM CDT FOR THE HILL
COUNTRY...ADJACENT EDWARDS PLATEAU AND SOUTH CENTRAL TEXAS.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...HAIL
3/4 INCH OR MORE IN DIAMETER...FREQUENT LIGHTNING AND VERY HEAVY
RAIN.
 
WHEN A THUNDERSTORM THREATENS...SEEK SHELTER INSIDE A HOME OR
BUILDING AWAY FROM DOORS AND WINDOWS.  REFRAIN FROM USING ELECTRICAL
APPLIANCES.
 
YOU SHOULD ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR
SEVERE WEATHER REPORTS TO THE LOCAL NATIONAL WEATHER SERVICE OFFICE.
 
PLEASE LISTEN TO YOUR LOCAL RADIO...TV OR NOAA WIEATHER RADIO STATION
FOR LATER STATEMENTS OR WARNINGS REGARDING THIS SEVERE WEATHER EVENT.

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, Sep 10, 4:18 PM CDT, 10 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
415 PM CDT THU SEP 10 1987

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM CDT THIS EVENING
FOR BANDERA...BEXAR...COMAL...EDWARDS...GUADALUPE...KENDALL...KERR...
KINNEY...MEDINA...REAL AND UVALDE COUNTIES.  THE METROPOLITAN AREA OF
SAN ANTONIO IS INCLUDED IN THE WATCH AREA.

IN ADDITION...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 7 PM CDT
FOR GONZALES COUNTY.

A LINE OF THUNDERSTORMS...SOME POSSIBLY SEVERE WITH STRONG DAMAGING
WINDS...LARGE HAIL...FREQUENT LIGHTNING AND LOCALLY HEAVY RAINFALL...
EXTENDS FROM ROCKSPRINGS TO JUNCTION TO AUSTIN...WITH MOVEMENT TOWARD
THE SOUTHEAST AT 25 MPH.

AS THIS LINE MOVES SOUTHEAST THIS AFTERNOON AND EARLY EVENING...PERSONS
IN THE HILL COUNTRY...ADJACENT EDWARDS PLATEAU AND SOUTH CENTRAL TEXAS
SHOULD BE ON THE ALERT FOR THREATENING WEATHER...LISTEN FOR THE LATEST
SEVERE WEATHER BULLETINS...AND BE PREPARED TO? MOVE TO A PLACE OF SAFETY
IF SEVERE WEATHER IS SIGHTED OR A WARNING IS ISSUED.

ADDITIONAL STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT...SO PLEASE
STAY TUNED TO LOCAL RADIO...TV OR NOAA WEATHER RADIO STATIONS.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 10, 4:42 PM CDTSevere Thunderstorm WarningEWXBlanco, Gillespie, Llano63 min
Sep 10, 4:42 PM CDTSevere Thunderstorm WarningEWXTravis63 min
Sep 10, 4:54 PM CDTSevere Thunderstorm WarningEWXKendall66 min
Sep 10, 5:17 PM CDTSevere Thunderstorm WarningEWXBandera58 min
Sep 10, 5:40 PM CDTSevere Thunderstorm WarningEWXBastrop, Caldwell65 min
Sep 10, 5:42 PM CDTSevere Thunderstorm WarningEWXComal63 min
Sep 10, 6:11 PM CDTSevere Thunderstorm WarningEWXBexar64 min

Nearby

Severe Thunderstorm Warnings in Texas, 1987Every severe thunderstorm warning 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.