Alert archive / Texas / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 67, NWS Austin/San Antonio, TX

May 12, 1992Hays County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 12, 1992, 6:50 PM CDT for Hays County, Texas. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
May 12, 1992, 6:50 PM CDT (23:50 UTC)
Expired
May 12, 1992, 7:45 PM CDT
In force
55 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Hays County, TX

The nearest sounding before it

Stephenville/Cla, TX (KSEP), launched 12:00Z, 11.8 hours before the alert went out and 240 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 12:00Z on 1992-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 1992-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 301 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
301 m²/s²
0-3 km storm-relative helicity
391 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAUS 122351 RRA
SVRAUS
TXC209-130045-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN TX
650 PM CDT TUE MAY 12 1992

THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  645 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTH CENTRAL TEXAS

   ...HAYS COUNTY

AT 647 PM RADAR SHOWED A SEVERE THUNDERSTORM NEAR DRIFTWOOD MOVING TO
THE SOUTH AT 10 MPH.


A TORNJADO 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, May 12, 3:54 PM CDT, 2 hours 56 minutes before
TXZ030-034-035-036-037-122200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
353 PM CDT TUE MAY 12 1992

...TORNADO WATCH IN EFFECT FOR MILLS...SAN SABA...LAMPASAS...
LLANO...BURNET...GILLESPIE...BLANCO...HAYS...WILLIAMSON...
TRAVIS...CALDWELL...MILAM...BASTROP...LEE...FAYETTE AND BURLESON
COUNTIES UNTIL 10 PM...

AT 348 PM...RADAR SHOWED WIDELY SCATTERED SHOWERS AND THUNDERSTORMS
OVER THE HILL COUNTRY.  THE STRONGER STORMS WERE LOCATED AT THE
WESTERN END OF LAKE TRAVIS...7 MILES WEST OF LIBERTY HILL...AND FROM
SAN SABA TO 5 MILES NORTHWEST OF PONTOTOC.  THE THUNDERSTORMS WERE
MOVING TO THE EAST AT 5 MILES AN HOUR.

THESE THUNDERSTORMS WILL LIKELY PRODUCE DANGEROUS LIGHTNING...SMALL
HAIL AND LOCALIZED FLOODING.

STAY TUNED TO NOAA WEATHER RADIO OR COMMERCIAL TV/RADIO FOR LATER
STATEMENTS OR POSSIBLE WARNINGS.

The office that day

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

IssuedProductOfficeCountiesLasted
May 11, 8:51 PM CDTSevere Thunderstorm WarningEWXWilliamson54 min
May 11, 9:42 PM CDTTornado WarningEWXWilliamson33 min
May 12, 4:22 PM CDTSevere Thunderstorm WarningEWXTravis, Williamson53 min
May 12, 5:14 PM CDTSevere Thunderstorm WarningEWXTravis, Williamson61 min
May 12, 5:56 PM CDTSevere Thunderstorm WarningEWXHays49 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; the sounding from the Mesonet's radiosonde archive.