Alert archive / Texas / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 30, NWS Austin/San Antonio, TX

May 3, 1987Real County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 3, 1987, 4:00 PM CDT for Real County, Texas. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
May 3, 1987, 4:00 PM CDT (21:00 UTC)
Expired
May 3, 1987, 5:00 PM CDT
In force
60 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County 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, 9.0 hours before the alert went out and 111 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 1987-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2662 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 1987-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 112 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
2662 J/kg
Mixed-layer CIN
-121 J/kg
Mixed-layer LCL
857 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
112 m²/s²
0-3 km storm-relative helicity
78 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 032100
SVRSAT
TXC385-032200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
400 PM CDT SUN MAY 3 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A

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, 10:05 AM CDT, 5 hours 55 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, 5 hours 51 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, 5 hours 1 minute 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, 3 hours 3 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.
Special weather statement, May 3, 2:24 PM CDT, 1 hour 36 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
220 PM CDT SUN MAY 3 1987

AT 215 PM...OUR WEATHER RADAR SHOWED A VERY INTENSE THUNDERSTORM
65 MILES SOUTHWEST OF AUSTIN...OR NEAR THE SMALL CITY OF COMFORT.
IT WAS MOVING TOWARDS THE EAST AT 12 MPH.  THAT PARTICULAR STORM
WAS RESPONSIBLE FOR VERY LARGE HAIL...GRAPEFRUIT SIZE...IN AND
AROUND KERRVILLE AND CENTER POINT.  EVEN THOUGH INTENSITY LEVELS
HAVE DECREASED IN THE LAST HALF HOUR, IT HAS THE POTENTIAL TO
RAPIDLY RE-INTENSIFY AGAIN LATER THIS AFTERNOON OR EVENING.

PERSONS IN THE HILL COUNTRY...WEST OF AUSTIN...SHOULD STAY ON THE
ALERT AND CHECK FOR THE LATEST WEATHER INFORMATION OFTEN.

STAY TUNED TO THIS STATION FOR ADDTIONAL REPORTS.
Special weather statement, May 3, 3:45 PM CDT, 15 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
330 PM CDT SUN MAY 3 1987

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT
FOR A LARGE PART OF SOUTH AND CENTRAL TEXAS INCLUDING TRAVIS AND
SURROUNDING COUNTIES.

AT 325 PM...WEATHER RADAR SHOWED THUNDERSTORMS HAVE DECREASED
DURING THE LAST HOUR AND THE ONLY STRONG THUNDERSTORM WAS LOCATED
ABOUT 45 MILES WEST OF KERRVILLE. SOME LIGHT SHOWERS WERE LOCATED
NEAR SPICEWOOD...SOUTHEAST OF KERRVILLE AND NORTHWEST OF HONDO.
MOVEMENT WAS EAST AT 15 MPH.  EVEN THOUGH INTENSITY LEVELS HAVE
DECREASED IN THE LAST HOUR, IT HAS THE POTENTIAL TO RAPIODLY
RE-INTENSIFY AGAIN LATER THIS AFTERNOON OR EVENING.

PERSONS IN AND NEAR THzE WATCH AREA...SHOULD STAY ON THE ALERT
AND CHECK FOR THE LATEST WEATHER INFORMATION OFTEN. ADDITIONAL
STATEMENTS AND WARNINGS WILL BE ISSUED AS CONDITION WARRENT.

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, 1:36 PM CDTSevere Thunderstorm WarningEWXKendall54 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.