Alert archive / Texas / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 147, NWS Austin/San Antonio, TX

June 28, 1992Blanco County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jun 28, 1992, 8:30 PM CDT for Blanco County, Texas. It was in force for 60 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 28, 1992, 8:30 PM CDT (01:30 UTC)
Expired
Jun 28, 1992, 9:30 PM CDT
In force
60 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Blanco County, TX

What was reported inside it

TimeReportWhereRemark
Jun 28, 9:10 PM CDTHail 0.75Blanco, TX

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Stephenville/Cla, TX (KSEP), launched 00:00Z, 1.5 hours before the alert went out and 219 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, Stephenville/Cla, TX at 00:00Z on 1992-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2510 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, Stephenville/Cla, TX at 00:00Z on 1992-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 square meters per square second.19395878Sfc1 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
2510 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
977 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
241 m²/s²
Significant tornado parameter
2.4
Supercell composite
13.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAUS 290131
SVRAUS
TXC031-290230-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN TX
830 PM CDT SUN JUN 28 1992
 
THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  930 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL TEXAS
 
   ...BLANCO COUNTY
 
AT 829 PM...RADAR SHOWED A SEVERE THUNDERSTORM NEAR ROUND MOUNTAIN
MOVING SLOWLY EAST SOUTHEASTWARD. THIS STORM IS CAPABLE OF PRODUCING
HAIL UP TO GOLFBALL SIZE...STRONG WINDS AND TORRENTIAL RAINFALL.
PERSONS IN ROUND MOUNTAIN AND JOHNSON CITY ARE NEAR THE DIRECT PATH OF
THIS STORM AN SHOULD TAKE IMMEDIATE SHELTER IF THREATENING WEATHER
APPROACH\ES.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.

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, Jun 28, 4:14 PM CDT, 4 hours 16 minutes before
TXZ034-035-039-054-290100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
415 PM CDT SUN JUN 28 1992

...A TORNADO WATCH IN EFFECT UNTIL 10 PM FOR PARTS OF SOUTH CENTRAL TEXAS...

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORADO WATCH UNTIL 10 PM TONIGHT
FOR AN AREA ALONG AND NORTH OF A LINE FROM JUNCTION TO ROCKSPRINGS TO
KERRVILLE...AUSTIN AND GEORGETOWN.  THE CITIES NAMED ABOVE ARE ALL INCLUDED
IN THE WATCH AREA.  THE SAN ANTONIO METROPOLITAN AREA IS NOT INCLUDED IN THE
WATCH AT THIS TIME.

AT 410 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED AN AREA OF SCATTERED
SHOWERS AND THUNDERSTORMS FORMING BETWEEN BROWNWOOD AND MASON.  VERY HEAVY
RAIN WAS INDICATED IN MANY OF THE STORMS...AND THEY ARE EXPECTED TO MOVE
TOWARD THE SOUTHEAST THROUGH THIS EVENING.

THE ATMOSPHERE OVER SOUTH CENTRAL TEXAS IS VERY UNSTABLE LATE THIS AFTERNOON
AND THE APPOACH OF AN UPPER LEVEL DISTURBANCE FROM THE WEST WILL CONTINUE
TO PRODUCE THUNDERSTORMS THROUGH MUCH OF TONIGHT.  THE POSSIBILITY OF LARGE
HAIL...DAMAGING WINDS AND EVEN TORNADOES EXISTS IN AND NEAR THE WATCH AREA.

PERSONS IN AND NEAR THIS AREA SHOULD STAY ABREAST OF THE LATEST INFORMATION
FROM THE NATIONAL WEATHER SERVICE...KEEP SEVERE THUNDERSTORM AND TORNADO
SAFETY RULES IN MIND...AND BE READY TO MOVE TO SAFETY IF NECESSARY.
Special weather statement, Jun 28, 6:20 PM CDT, 2 hours 10 minutes before
TXZ034-035-039-054-290020-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
620 PM CDT SUN JUN 28 1992

...A TORNADO WATCH IN EFFECT UNTIL MIDNIGHT FOR PARTS OF SOUTH CENTRAL TEXAS...

THE NATIONAL WEATHER SERVICE HAS ISSUED ANOTHER TORNADO WATCH VALID UNTIL
MIDNIGHT TONIGHT THAT INCLUDES COMAL COUNTY.  A TORNADO WATCH IS ALSO IN
EFFECT UNTIL 10 PM TONIGHT FOR KERR AND EDWARDS COUNTIES.  THE SAN ANTONIO
METROPOLITAN AREA IS NOT INCLUDED IN THE WATCH AT THIS TIME.

AT 620 PM CDT...WEATHER SERVICE RADAR IN HONDO INDICATED AN AREA OF
THUNDERSTORMS...SOME SEVERE...OVER CENTRAL TEXAS FROM NEAR LLANO TO SAN SABA
AND EXTENDING NORTHWARD.  ANOTHER LINE OF THUNDERSTORMS WAS DEVELOPING
BETWEEN JUNCTION AND SAN ANGELO.  MOVEMENT WAS TO THE EAST AND SOUTHEAST
AT 15 MILES AN HOUR.

ATMOSPHERIC CONDITIONS REMAIN PRIMED FOR THE DEVELOPMENT OF SEVERE
THUNDERSTORMS THAT COULD MOVE SOUTHEAST INTO PARTS OF SOUTH CENTRAL
TEXAS LATER TONIGHT.  THE POSSIBILITY OF LARGE HAIL...DAMAGIN WINDS...VERY
HEAVY RAINS...AND EVEN TORNADOES EXISTS IN AND NEAR THE WATCH AREA.

PERSONS IN SOUTH CENTRAL TEXAS SHOULD LISTEN FOR THE LATEST INFORMATION
FROM THE NATIONAL WEATHER SERVICE...KEEP SEVERE THUNDERSTORM AND TORNADO
SAFETY RULES IN MIND...AND BE READY TO MOVE TO SAFETY IF NECESSARY.
Special weather statement, Jun 28, 7:26 PM CDT, 1 hour 4 minutes before
TXZ054-290130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
725 PM CDT SUN JUN 28 1992

AT 720 PM CDT RADAR INDICATED A STRONG THUNDERSTORM WITH FREQUENT
DANGEROUS LIGHTNING IN MEXICO JUST SOUTH OF THE RIO GRANDE RIVER ...40
MILES WEST NORTHWEST OF DEL RIO. MOVEMENT WAS TO THE EAST AT 15 MPH.

SMALL HAIL...HEAVY RAIN...FREQUENT DANGEROUS LIGHTNING AND STRONG
GUSTY WINDS ARE LIKELY WITH THIS STORM.

PERSONS LIVING IN COMSTOCK SHOULD BE ON THE LOOKOUT AND BE PREPARED TO
MOVE TO SAFETY.

 BOATERS...FISHERMEN AND CAMPERS ON LAKE AMISTAD AND AREA RIVERS SHOULD
REMAIN ALERT AND BE PREPARED TO SEEK SAFE HARBOR AND A PLACE OF SAFETY.

STAY TUNED TO YOUR LOCAL NOAA WEATHER RADIO+...TV AND RADIO STATIONS FOR
FURTHER STATEMENTS OR WARNINGS.
Special weather statement, Jun 28, 7:26 PM CDT, 1 hour 4 minutes before
TXZ034-035-039-054-290125-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
723 PM CDT SUN JUN 28 1992

...TORNADO WATCH IN EFFECT UNTIL 10 PM CDT FOR KERR AND EDWARDS COUNTIES
   AND UNTIL MIDNIGHT FOR COMAL COUNTY...

AT 720 PM CDT...SCATTERED STRONG THUNDERSTORMS WERE OVER SOUTH CENTRAL
TEXAS FROM BURNET TO LLANO TO MASON...AND FROM BRADY TO MENARD TO NEAR
SONORA.  ANOTHER THUNDERSTORM WAS ALSO WEST OF COMSTOCK IN VAL VERDE
COUNTY...JUST WEST OF THE RIO GRANDE RIVER.  THE THUNDERSTORMS WERE MOVING
TO THE SOUTHEAST AT 10 TO 15 MPH.

SOME OF THE THUNDERSTORMS HAVE BEEN SEVERE PRODUCING GOLF TO SOFTBALL
SIZE HAIL EARLIER THIS EVENING.  IN ADDITION TO THE THREAT OF HAIL...
THE STORMS ARE CAPABLE OF CAUSING STRONG AND DAMAGING WINDS...VERY
HEAVY RAINS...AND EVEN TORNADOES.

IF THE THUNDERSTORMS CONTINUE ON THEIR PRESENT MOVEMENT...THEY COULD
START AFFECTING EDWARDS...KERR...KENDALL...AND COMAL COUNTIES WITHIN THE
NEXT HOUR OR TWO.

PERSONS IN SOUTH CENTRAL TEXAS SHOULD LISTEN FOR THE LATEST INFORMATION
FROM THE NATIONAL WEATHER SERVICE...KEEP SEVERE THUNDERSTORM AND TORNADO
SAFETY RULES IN MIND...AND BE READY TO MOVE TO SAFETY IF NECESSARY.
Special weather statement, Jun 28, 8:08 PM CDT, 22 minutes before
TXZ054-290200-

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE DEL RIO TX
808 PM CDT SUN JUN 28 1992

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR VAL VERDE COUNTY UNTIL
200 AM MONDAY MORNING...

AT 800 PM CDT RADAR INDICATED A STRONG THUNDERSTORM WITH FREQUENT
DANGEROUS LIGHTNING 14 MILES WEST NORTHWEST OF DEL RIO. MOVEMENT WAS TO
THE EAST AT 15 MPH. PUBLIC REPORTED STRONG GUSTY WINDS AT BOX
CANYON...20 MILES WNW OF DEL RIO.

LARGE HAIL...HEAVY RAIN...FREQUENT DANGEROUS LIGHTNING AND DAMAGING
THUNDERSTORM WINDS ARE POSSIBLE WITH THESE STORMS.

THIS STORM IS MOVING TOWARDS LAKE AMISTAD AND DEL RIO.
BOATERS...FISHERMEN AND CAMPERS ON LAKE AMISTAD AND AREA RIVERS SHOUPLD
SEEK SAFE HARBOR AND A PLACE OF SAFETY NOW.

STAY TUNED TO YOUR LOCAL NOAA WEATHER RADIO...TV AND RADIO STATIONS FOR
FURTHER STATEMENTS OR WARNINGS.
Special weather statement, Jun 28, 8:24 PM CDT, 6 minutes before
TXZ034-035-038>041-054-290225-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
825 PM CDT SUN JUN 28 1992

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 2 AM TONIGHT FOR MUCH OF
   SOUTH CENTRAL TEXAS...

THE NATIONAL WEATHER SERVICE HAS NOW ISSUED A SEVERE THUNDERSTORM WATCH
FOR A LARGE PORTION OF SOUTH CENTRAL TEXAS...GENERALLY FROM DEL RIO TO
AUSTIN TO BEEVILLE TO COTULLA.  THE WATCH INCLUDES BEXAR COUNTY AND
SURROUNDING COUNTIES OF SOUTH CENTRAL TEXAS AND THE TEXAS HILL COUNTRY.

AT 815 PM CDT...SCATTERED THUNDERSTORMS...SOME SEVERE...WERE FROM EAST
OF JUNCTION TO NEAR JOHNSON CITY...AND MOVING TO THE SOUTHEAST AT 15
MILES AN HOUR.  SOME OF THE THUNDERSTORMS HAVE HAD A HISTORY OF
PRODUCING LARGE HAIL...GOLF TO SOFTBALL SIZE...EARLIER THIS EVENING.
IN ADDITION TO THE THREAT OF HAIL...THE STORMS COULD PRODUCE DAMAGING
WINDS...VERY HEAVY RAINS...AND FREQUENT LIGHTNING.

PERSONS IN KERR AND KENDALL COUNTIES COULD START TO BE AFFECTED BY THESE
STORMS WITHIN THE HOUR.

PERSONS IN SOUTH CENTRAL TEXAS SHOULD LISTEN FOR THE LATEST INFORMATION
FROM THE NATIONAL WEATHER SERVICE...KEEP SEVERE THUNDERSTORM AND TORNADO
SAFETY RULES IN MIND...AND BE READY TO MOVE TO SAFETY IF NECESSARY.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 8:52 PM CDTSevere Thunderstorm WarningEWXGillespie68 min
Jun 28, 8:55 PM CDTSevere Thunderstorm WarningEWXKendall, Kerr65 min
Jun 28, 10:01 PM CDTSevere Thunderstorm WarningEWXKendall, Kerr29 min
Jun 28, 11:34 PM CDTSevere Thunderstorm WarningEWXBexar41 min
Jun 29, 12:31 AM CDTSevere Thunderstorm WarningEWXBexar, Medina59 min
Jun 29, 2:46 AM CDTSevere Thunderstorm WarningEWXBandera44 min
Jun 29, 4:07 AM CDTSevere Thunderstorm WarningEWXKerr38 min

Nearby

Severe Thunderstorm Warnings in Texas, 1992Every severe thunderstorm warning in 1992

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.