Alert archive / Texas / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 36, NWS Austin/San Antonio, TX

April 28, 1996Caldwell County, Guadalupe County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 28, 1996, 10:57 PM CDT for Caldwell County, Guadalupe County, Texas. It was in force for 63 min. 4 reports 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
Apr 28, 1996, 10:57 PM CDT (03:57 UTC)
Expired
Apr 29, 1996, 12:00 AM CDT
In force
63 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Caldwell County, TX, Guadalupe County, TX

The radar

The Austin/San Antonio radar (KEWX), 24 km from the middle of the area, began a volume at 04:01 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.

What was reported inside it

TimeReportWhereRemark
Apr 28, 11:05 PM CDTThunderstorm WindLake Mcqueeny, TX
Apr 28, 11:05 PM CDTHail 0.75Lake Mcqueeny, TX
Apr 28, 11:05 PM CDTThunderstorm WindLuling, TX
Apr 28, 11:26 PM CDTHail 0.75Seguin, 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.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 4.0 hours before the alert went out and 224 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 00:00Z on 1996-04-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2004 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 00:00Z on 1996-04-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 108 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
2004 J/kg
Mixed-layer CIN
-331 J/kg
Mixed-layer LCL
1341 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
148 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 290358
SVRSAT
TXC055-187-290500-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1057 PM CDT SUN APR 28 1996
 
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL MIDNIGHT CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL TEXAS
 
   ...CALDWELL COUNTY...GUADALUPE COUNTY
 
STRONG THUNDERSTORMS WERE LOCATED ACROSS CALDWELL AND GUADALUPE COUNTIES
MOVING TO THE SOUTHEAST AT 20 MPH.  LARGE HAIL...DAMAGING WIND AND BRIEF
HEAVY RAINFALL ARE POSSIBLE WITH THESE STORMS.
 
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.
 
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 FfLOOR 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
Apr 28, 7:19 PM CDTSevere Thunderstorm WarningEWXEdwards, Val Verde56 min
Apr 28, 8:15 PM CDTSevere Thunderstorm WarningEWXReal60 min
Apr 28, 8:42 PM CDTSevere Thunderstorm WarningEWXWebb63 min
Apr 28, 9:22 PM CDTSevere Thunderstorm WarningEWXGillespie68 min
Apr 28, 9:57 PM CDTSevere Thunderstorm WarningEWXBandera63 min
Apr 28, 10:07 PM CDTSevere Thunderstorm WarningEWXBlanco68 min
Apr 28, 10:16 PM CDTSevere Thunderstorm WarningEWXMedina59 min
Apr 28, 10:21 PM CDTSevere Thunderstorm WarningEWXBexar69 min
Apr 28, 10:30 PM CDTSevere Thunderstorm WarningEWXFrio60 min
Apr 28, 10:44 PM CDTSevere Thunderstorm WarningEWXComal, Hays61 min
Apr 28, 11:09 PM CDTSevere Thunderstorm WarningEWXTravis66 min
Apr 28, 11:18 PM CDTSevere Thunderstorm WarningEWXWilson57 min
Apr 28, 11:23 PM CDTSevere Thunderstorm WarningEWXFrio67 min
Apr 28, 11:34 PM CDTSevere Thunderstorm WarningEWXGonzales56 min
Apr 29, 12:12 AM CDTSevere Thunderstorm WarningEWXDeWitt48 min
Apr 29, 12:35 AM CDTSevere Thunderstorm WarningEWXZavala55 min
Apr 29, 12:47 AM CDTSevere Thunderstorm WarningEWXFayette58 min

Nearby

Severe Thunderstorm Warnings in Texas, 1996Every severe thunderstorm warning in 1996

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; radar from the NEXRAD Level II archive.