Alert archive / Texas / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 29, NWS Austin/San Antonio, TX

May 3, 1987Kendall County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 3, 1987, 1:36 PM CDT for Kendall County, Texas. It was in force for 54 min.

The area

The counties it named.

The facts

Issued
May 3, 1987, 1:36 PM CDT (18:36 UTC)
Expired
May 3, 1987, 2:30 PM CDT
In force
54 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Kendall 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, 6.6 hours before the alert went out and 214 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 1987-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2994 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 1987-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -17 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
2994 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
603 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-17 m²/s²
0-3 km storm-relative helicity
5 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 031836
SVRSAT
TXC259-031930-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
136 PM CDT SUN MAY 3 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 230 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTH TEXAS
          ...KENDALL
 
AT 130 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM IN EXTREME EASTERN KERR COUNTY...MOVING EAST AT 15 MILES
AN HOUR.  THE CURRENT PATH OF THIS STORM IMMEDIATELY THREATENS
RESIDENTS IN WESTERN KENDALL COUNTY.  WITHIN THE PAST FEW
MINUTES...THE STORM WAS REPORTED TO HAVE PRODUCED SOFTBALL TO
GRAPEFRUIT-SIZE HAIL NEAR CENTERPOINT IN EASTERN KERR COUNTY.
 
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 WEATHER 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, May 3, 9:24 AM CDT, 4 hours 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
915 AM CDT SUN MAY 3 1987

...SEVERE THUNDERSTORM WATCH IS NO LONGER IN EFFECT FOR TRAVIS...
HAYS...WILLIAMSON...BASTROP...CALDWELL AND ALL THE COUNTIES TO WEST
AND NORTHWEST OVER THE HILL COUNTRY.

AT 8:48 AM CDT RADAR INDICATED STRONG THUNDERSTORMS IN THE SOUTHWEST
CORNER OF LLANO COUNTY MOVING NORTHEAST AT 20 MPH. AN ISOLATED STRONG
THUNDERSTORM WAS INDICATED ALONG THE COLORADO RIVER IN SOUTHEAST BURNET
COUNTY MOVING NORTHEAST AT 15 MPH. THESE THUNDERSTORMS ARE LIKELY TO
PRODUCE HEAVY RAINS...GUSTY WIND AND POSSIBLY HAIL AND FLOODING OF LOW
PLACES. THE LEADING EDGE OF THE RAIN AREA IS LOCATED FROM NEAR
PALESTINE...SOUTH OF TEMPLE...15 MILES NORTHWEST OF AUSTIN TO THE HILL
COUNTRY SOUTH OF KERRIVILLE.
THE RAIN AREA IS DRIFTING SLOWLY TO THE SOUTHEAST.

STAY TUNED TO NOAA WEATHER RADIO FO THE LATEST WEATHER INFORMATION.
Special weather statement, May 3, 9:55 AM CDT, 3 hours 41 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
955 AM CDT SUN MAY 3 1987

              ...STRONG THUNDERSTORM OVER KERR COUNTY...

AT 950 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED AN ISOLATED
STRONG THUNDERSTORM OVER NORTHERN SECTIONS OF KERR COUNTY...JUST WEST OF
THE CITY OF MOUNTAIN HOME.  THIS STORM WAS MOVING EAST AT 25 MILES AN
HOURS.

RESIDENTS IN THE PATH OF THIS STORM CAN EXPECT TO EXPERIENCE BRIEF
VERY HEAVY RAIN...FREQUENT LIGHTNING...STRONG GUSTY WIND AND POSSIBLY
SMALL HAIL AS THIS STORM MOVES ACROSS THE COUNTY DURING THE NEXT HOUR.

ADDITIONAL STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT.  THESE
STATEMENTS WILL BE BROADCAST OVER NOAA WEATHER RADIO...YOUR BEST SOURCE
FOR THE LATEST WEATHER INFORMATION.
Special weather statement, May 3, 10:05 AM CDT, 3 hours 31 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
955 AM CDT SUN MAY 3 1987

...STRONG THUNDERSTORMS CONTINUE TO RUMBLE OVER PORTION OF THE
HILL COUNTRY AND ALONG THE COLORADO RIVER FROM LAKE BUCHANAN TO
MARBLE FALLS...

AT 9:50 AM CDT RADAR INDICATED STRONG THUNDERSTORMS SCATTERD ALONG A
LINE 5 MILES WIDE EXTENDING FROM THE SOUTHEAST CORNER OF MASON COUNTY
TO 15 MILES EAST OF JUNCTION TO THE WESTERN PORTION  OF KERR COUNTY
MOVING NORTHEAST 20 MPH. OTHER STRONG THUNDERSTORMS ARE OCCURRING ALONG
THE COLORADO RIVER FROM LAKE BUCHANAN TO MARBLE FALLS. THESE THUNDER
STORMS ARE LIKELY TO PRODUCE  HEAVY RAINS...GUSTY WIND AND FLOODING IN
LOW PLACES.
THE AIRMASS OVER SOUTH TEXAS REMAINS VERY MOIST AND UNSTABLE. ANOTHER
UPPER AIR DISTURBANCE IS EXPECTED TO APPROACH SOUTH TEXAS THIS
AFTERNOON AND EARLY TONIGHT.
STAY TUNED TO NOAA WEATHER RADIO FO THE LATEST WEATHER INFORMATION.
STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION.
Special weather statement, May 3, 10:09 AM CDT, 3 hours 27 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
955 AM CDT SUN MAY 3 1987

...STRONG THUNDERSTORMS CONTINUE TO RUMBLE OVER PORTION OF THE
HILL COUNTRY AND ALONG THE COLORADO RIVER FROM LAKE BUCHANAN TO
MARBLE FALLS...

AT 9:50 AM CDT RADAR INDICATED STRONG THUNDERSTORMS SCATTERD ALONG A
LINE 5 MILES WIDE EXTENDING FROM THE SOUTHEAST CORNER OF MASON COUNTY
TO 15 MILES EAST OF JUNCTION TO THE WESTERN PORTION  OF KERR COUNTY
MOVING NORTHEAST 20 MPH. OTHER STRONG THUNDERSTORMS ARE OCCURRING ALONG
THE COLORADO RIVER FROM LAKE BUCHANAN TO MARBLE FALLS. THESE THUNDER
STORMS ARE LIKELY TO PRODUCE  HEAVY RAINS...GUSTY WIND AND FLOODING IN
LOW PLACES.
THE AIRMASS OVER SOUTH TEXAS REMAINS VERY MOIST AND UNSTABLE. ANOTHER
UPPER AIR DISTURBANCE IS EXPECTED TO APPROACH SOUTH TEXAS THIS
AFTERNOON AND EARLY TONIGHT.

STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION.
Special weather statement, May 3, 10:59 AM CDT, 2 hours 37 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
1055 AM CDT SUN MAY 3 1987

AT 1050 AM CDT STRONG THUNDERSTORMS WERE SCATTERD ALONG A LINE
IN THE HILL COUNTRY FROM THE SOUTHWEST CORNER OF LLANO COUNTY TO
HARPER 20 MILES NORTHWEST OF KERRVILLE. THIS LINE WAS MOVING SOUTHEAST
20 MPH.
SCATTERED RAINSHOWERS AND THUNDERSHOWERS WERE SOUTHEAST OF A HILLSBORO
...FORT HOOD...40 MILES WEST OF KERRVILLE LINE DRIFTING SLOWLY TO THE
SOUTHEAST.

RESIDENTS ARE REMINED...HOWEVER...THAT THE AIRMASS OVER SOUTH TEXAS
REMAINS VERY MOIST AND UNSTABLE. ANOTHER UPPER LEVEL DISTURBANCE IS
EXPECTED TO APPROACH SOUTH TEXAS THIS AFTERNOON AND EARLY TONIGHT. THE
REDEVELOPMENT OF THUNDERSTORMS...SOME APPR4OACHING SEVERE LIMITS WILL
AGAIN BE POSSIBLE OVER NORTHERN SECTIONS OF SOUTH TEXAS.

STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION.
Special weather statement, May 3, 12:57 PM CDT, 39 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
1255 PM CDT SUN MAY 3 1987

        ...THUNDERSTORMS CONTINUE OVER THE HILL COUNTRY...

A LINE OF THUNDERSTORMS HAS REMAINED NEARLY STATIONARY FOR THE PAST FEW
HOURS OVER PORTIONS OF THE TEXAS HILL COUNTRY.  THIS LINE EXTENDED
SOUTHWEST FROM NEAR LUFKIN INTO CENTRAL KERR AND REAL COUNTIES OF SOUTH
TEXAS.

DURING THE PAST FEW MINUTES...REPORTS OF PEA TO MARBLE-SIZE HAIL HAVE
BEEN RECEIVED FROM NEAR THE CITY OF HUNT IN KERR COUNTY.  IN ADDITION TO
THE HAIL...IT IS LIKELY THAT ISOLATED VERY HEAVY RAINS ARE OCCURRING
WITHIN SOME OF THE STRONGER STORMS.  THE NEARLY STATIONARY CHARACTER OF
THIS LINE OF STORMS ADDS TO THE THREAT OF AT LEAST LOCALIZED FLOODING.

CONDITIONS REMAIN FAVORABLE FOR CONTINUED THUNDERSTORM DEVELOPMENT ALONG
THIS LINE THROUGHOUT THE AFTERNOON AS SURFACE HEATING AND ANOTHER
APPROACHING UPPER LEVEL DISTURBANCE INTERACT.  RESIDENTS SHOULD MONITOR
WEATHER DEVELOPMENTS CLOSELY THROUGHOUT THE REMAINDER OF THIS AFTERNOON.
ADDITIONAL STATEMENTS WILL BE BROADCAST OVER NOAA WEATHER RADIO AS
CONDITIONS WARRANT.

The office that day

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

IssuedProductOfficeCountiesLasted
May 3, 1:23 AM CDTSevere Thunderstorm WarningEWXEdwards52 min
May 3, 1:12 PM CDTSevere Thunderstorm WarningEWXKerr63 min
May 3, 4:00 PM CDTSevere Thunderstorm WarningEWXReal60 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.