Alert archive / Texas / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 233, NWS Austin/San Antonio, TX

September 18, 1995Williamson County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Sep 18, 1995, 8:18 PM CDT for Williamson County, Texas. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
Sep 18, 1995, 8:18 PM CDT (01:18 UTC)
Expired
Sep 18, 1995, 9:15 PM CDT
In force
57 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Williamson County, TX

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 1.3 hours before the alert went out and 245 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, Fort Worth, TX at 00:00Z on 1995-09-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 94 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, Fort Worth, TX at 00:00Z on 1995-09-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 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
94 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
886 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
126 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 190117 RRA
SVRSAT
TXC491-190215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
818 PM CDT MON SEP 18 1995
 
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  915 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL TEXAS
 
   ...WILLIAMSON COUNTY
 
DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM ENTERING THE WESTERN AREAS
OF WILLIAMSON COUNTY JUST WEST OF LIBERTY HILL ALONG HIGHWAY 29.
MOVEMENT OF THE SEVERE STORM WAS TOWARD THE EAST AT 15 MPH.
 
THIS STORM WILL BE IN THE LIBERTY HILL AREA BY 845 PM.
THIS STORM HAS A HISTORY OF LARGE HAIL AND DAMAGING WINDS.
DOPPLER RADAR HAS ALSO SHOWN THIS STORM COULD PRODUCE A
TORNADO.
 
 
THIS IS A DANGEROUS STORM...TAKE COVER IMMEDIATELY IF YOU ARE IN
ITS PATH.  FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF YOUR BUILDING...STAY AWAY FROM WINDOWS"!  SEVERE
THUNDERSTORMS CAN CAUSE AS MUCH DAMAGE AS A TORNADO.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 18, 7:50 PM CDTSevere Thunderstorm WarningEWXBurnet55 min
Sep 18, 8:07 PM CDTTornado WarningEWXBurnet30 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.