Alert archive / Texas / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 41, NWS Austin/San Antonio, TX

April 29, 1996DeWitt County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 29, 1996, 12:12 AM CDT for DeWitt County, Texas. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 29, 1996, 12:12 AM CDT (05:12 UTC)
Expired
Apr 29, 1996, 1:00 AM CDT
In force
48 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County DeWitt County, TX

The radar

The Austin/San Antonio radar (KEWX), 95 km from the middle of the area, began a volume at 05:16 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 00:00Z, 5.2 hours before the alert went out and 150 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 290513
SVRSAT
TXC123-290600-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1212 AM CDT MON APR 29 1996
 
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  100 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL TEXAS
 
   ...DE WITT COUNTY
 
AT 1210 AM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM LOCATED
15 MILES NORTH OF YORKTOWN. MOVEMENT WAS SOUTHEAST AT 15 MPH. DAMAGING
WINDS ARE POSSIBLE WITH THE PASSAGE OF THIS THUNDERSTORM.
 
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.

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

Local storm report, Apr 28, 11:28 PM CDT, 44 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE SAN ANTONIO, TX
1125 PM CDT SUN APR 28 1996

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....
 637 PM    LANGTRY                    TX   NICKEL SIZE HAIL
04/28/96   VAL VERDE                       COOP OBSVR

 732 PM    E. OF ROCKSPRINGS          TX    NICKEL SIZE HAIL
04/28/96   EDWARDS                          REPRTD VIA DPS ROCKSPRINGS

 730 PM    12N COMSTOCK               TX  .75 INCH HAIL
04/28/96   VAL VERDE                       COOP OBSVR

 800 PM    LANGTRY                    TX   1.72 RAIN IN 1 HOUR
04/28/96   VAL VERDE                       COOP OBSVR

 824 PM    20N LEAKEY                 TX   NICKEL SIZE HAIL
04/28/96   REAL                            VIA DPS REAL COUNTY

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, 10:57 PM CDTSevere Thunderstorm WarningEWXCaldwell, Guadalupe63 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, 12:35 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.