Alert archive / Texas / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 98, NWS Austin/San Antonio, TX

May 27, 1992Llano County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 27, 1992, 5:31 PM CDT for Llano County, Texas. It was in force for 59 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
May 27, 1992, 5:31 PM CDT (22:31 UTC)
Expired
May 27, 1992, 6:30 PM CDT
In force
59 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Llano County, TX

What was reported inside it

TimeReportWhereRemark
May 27, 6:10 PM CDTHail 1.75Llano, 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 12:00Z, 10.5 hours before the alert went out and 177 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 1992-05-27Temperature 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 1992-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
794 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
116 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 KAUS 272231
SVRAUS
TXC299-453-272330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN TX
531 PM CDT WED MAY 27 1992
 
THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  630 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL TEXAS
 
   ...EASTERN LLANO COUNTY...TRAVIS COUNTY
 
AT 528 PM...RADAR SHOWED SEVERE THUNDERSTORMS OVER LLANO COUNTY NEAR
THE CITY OF LLANO...AND OVER THE WESTERN END OF LAKE TRAVIS. THESE
STORMS WERE MOVING TO THE EAST AT 15 MILES AN HOUR. THE STORM MOVING
INTO TRAVIS COUNTY COUNTY HAS HAD A HISTORY OF PING-PONG SIZED HAIL.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERSA THE ROAD.

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 11:07 PM CDTSevere Thunderstorm WarningEWXMaverick68 min
May 27, 1:46 AM CDTFlash Flood WarningEWXBexar4 hr
May 27, 5:32 AM CDTFlash Flood WarningEWXBexar3 hr
May 27, 3:52 PM CDTSevere Thunderstorm WarningEWXLlano53 min
May 27, 4:24 PM CDTSevere Thunderstorm WarningEWXLlano, San Saba66 min
May 27, 4:28 PM CDTTornado WarningEWXBlanco47 min
May 27, 4:34 PM CDTSevere Thunderstorm WarningEWXBurnet41 min
May 27, 5:15 PM CDTTornado WarningEWXBlanco30 min
May 27, 5:18 PM CDTSevere Thunderstorm WarningEWXBurnet27 min
May 27, 5:31 PM CDTSevere Thunderstorm WarningEWXTravis59 min
May 27, 5:47 PM CDTSevere Thunderstorm WarningEWXBurnet43 min
May 27, 6:06 PM CDTTornado WarningEWXTravis39 min
May 27, 6:20 PM CDTSevere Thunderstorm WarningEWXLlano40 min
May 27, 6:40 PM CDTTornado WarningEWXTravis50 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.