Alert archive / Texas / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 104, NWS Austin/San Antonio, TX

May 11, 1995Travis County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 11, 1995, 12:42 PM CDT for Travis County, Texas. It was in force for 63 min.

The area

The counties it named.

The facts

Issued
May 11, 1995, 12:42 PM CDT (17:42 UTC)
Expired
May 11, 1995, 1:45 PM CDT
In force
63 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Travis County, TX

The radar

The Ft Hood radar (KGRK), 58 km from the middle of the area, began a volume at 17:43 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 5.7 hours before the alert went out and 293 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, Corpus Christi, TX at 12:00Z on 1995-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3033 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, Corpus Christi, TX at 12:00Z on 1995-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 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
3033 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
524 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
151 m²/s²
Significant tornado parameter
3.1
Supercell composite
12.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 111747
SVRSAT
TXC453-111845-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1242 PM CDT THU MAY 11 1995
 
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  145 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL TEXAS
 
   ...TRAVIS COUNTY
 
AT 1240 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
NEAR MARBLE FALLS WITH MOVEMENT TOWARD THE EAST AT 30 MPH TOWARD
LAGO VISTA IN NORTHERN TRAVIS COUNTY.  GOLF-BALL SIZED HAIL HAS
BEEN REPORTED WITH THIS STORM.
 
PERSONS ALONG THE COLORADO RIVER FROM AUSTIN NORTHWARD SHOULD BE
ALERT TO THIS STORM.
 
SEVERE THUNDERSTORM WINDS CAN REACH SPEEDS OVER 60 MPH.  THESE WINDS
BLOW DOWN TREES...POWER LINES...AND SEVERELY DAMAGE MOBILE HOMES...
SOMETIMES BUILDINGS.  VERY LARGE HAIL CAN INJURE ANYONE CAUGHT
OUTSIDE.
 
PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT TO THE POSSIBILITY
OF LARGE HAIL AND DAMAGING WINDS.  FREQUENT LIGHTNING AND LOCALLY
HEAVY RAIN CAN OCCUR WITH ANY THUNDERSTORM.
 
 
 
&

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 11, 11:11 AM CDT, 1 hour 31 minutes before
TXZ205>208-223-111800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1105 AM CDT THU MAY 11 1995

AT 11 AM CDT DOPPLER RADAR INDICATED SCATTERED SHOWERS AND
THUNDERSTORMS DEVELOPING FROM THE SAN ANTONIO AREA TO NEW
BRAUNFELS TO SEGUIN.  THE STRONGEST THUNDERSTORM WAS LOCATED
JUST TO THE WEST OF NEW BRAUNFELS. THESE STORMS WERE MOVING TO
THE NORTHEAST AT 20 TO 25 MILES AN HOUR.

STRONG GUSTY WINDS...HEAVY RAIN...DANGEROU$S LIGHTNING AND SMALL
HAIL ARE LIKELY WITH THIS STORM. BE ALERT TO CHANGING WEATHER
CONDITIONS AND LISTEN TO NOAA WEATHER RADIO FOR ADDITIONAL
STATEMENTS OR POSSIBLE WARNINGS.

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 9:35 PM CDTSevere Thunderstorm WarningEWXVal Verde55 min
May 10, 9:53 PM CDTTornado WarningEWXVal Verde37 min
May 10, 10:25 PM CDTTornado WarningEWXVal Verde50 min
May 10, 11:21 PM CDTSevere Thunderstorm WarningEWXEdwards54 min
May 11, 11:08 AM CDTSevere Thunderstorm WarningEWXComal, Guadalupe67 min
May 11, 11:23 AM CDTSevere Thunderstorm WarningEWXCaldwell, Hays67 min
May 11, 11:50 AM CDTSevere Thunderstorm WarningEWXFayette, Gonzales55 min
May 11, 12:20 PM CDTSevere Thunderstorm WarningEWXBurnet, Llano, Williamson70 min
May 11, 12:35 PM CDTSevere Thunderstorm WarningEWXBastrop, Fayette, Gonzales55 min
May 11, 1:12 PM CDTSevere Thunderstorm WarningEWXWilliamson63 min
May 11, 1:38 PM CDTSevere Thunderstorm WarningEWXBastrop67 min
May 11, 1:43 PM CDTSevere Thunderstorm WarningEWXLee62 min
May 11, 2:15 PM CDTSevere Thunderstorm WarningEWXFayette35 min

Nearby

Severe Thunderstorm Warnings in Texas, 1995Every severe thunderstorm warning in 1995

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; radar from the NEXRAD Level II archive.