Alert archive / Texas / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 40, NWS Austin/San Antonio, TX

April 28, 1996Gonzales County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 28, 1996, 11:34 PM CDT for Gonzales County, Texas. It was in force for 56 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: Apr 28, 1996, 11:34 PM CDT (04:34 UTC)
Expired: Apr 29, 1996, 12:30 AM CDT
In force: 56 min
Issued by: NWS Austin/San Antonio, TX
Area: Whole counties

County Gonzales County, TX

The radar

The Austin/San Antonio radar (KEWX), 59 km from the middle of the area, began a volume at 04:36 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

Time	Report	Where	Remark
Apr 29, 12:05 AM CDT	Thunderstorm Wind	Nixon, 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, 4.6 hours before the alert went out and 193 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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 290435
SVRSAT
TXC177-290530-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1134 PM CDT SUN APR 28 1996
 
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1230 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL TEXAS
 
   ...GONZALES COUNTY
 
A LINE OF SEVERE THUNDERSTORMS WAS MOVING RAPIDLY SOUTHEASTWARD INTO
GONZALES COUNTY. THIS LINE OF STORMS LIKELY CONTAINS LARGE HAIL AND
DAMAGING WINDS. TAKE COVER IF YOU ARE IN THE PATH OF 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 ALSO OCCUR WITH SEVERE THUNDERSTORMS...FLOODING SMALL
STREAMS...LOW AREAS...AND LOW WATER CROSSINGS.
 
IF YOU SEE SEVERE WEATHER TAKING PLACE...CALL YOUR REPORT TO
THE NEAREST LAW ENFORCEMENT AGENCY FOR IMMEDIATE RELAY TO THE
NATIONAL WEATHER SERVICE.

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, 6 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.

Issued	Product	Office	Counties	Lasted
Apr 28, 7:19 PM CDT	Severe Thunderstorm Warning	EWX	Edwards, Val Verde	56 min
Apr 28, 8:15 PM CDT	Severe Thunderstorm Warning	EWX	Real	60 min
Apr 28, 8:42 PM CDT	Severe Thunderstorm Warning	EWX	Webb	63 min
Apr 28, 9:22 PM CDT	Severe Thunderstorm Warning	EWX	Gillespie	68 min
Apr 28, 9:57 PM CDT	Severe Thunderstorm Warning	EWX	Bandera	63 min
Apr 28, 10:07 PM CDT	Severe Thunderstorm Warning	EWX	Blanco	68 min
Apr 28, 10:16 PM CDT	Severe Thunderstorm Warning	EWX	Medina	59 min
Apr 28, 10:21 PM CDT	Severe Thunderstorm Warning	EWX	Bexar	69 min
Apr 28, 10:30 PM CDT	Severe Thunderstorm Warning	EWX	Frio	60 min
Apr 28, 10:44 PM CDT	Severe Thunderstorm Warning	EWX	Comal, Hays	61 min
Apr 28, 10:57 PM CDT	Severe Thunderstorm Warning	EWX	Caldwell, Guadalupe	63 min
Apr 28, 11:09 PM CDT	Severe Thunderstorm Warning	EWX	Travis	66 min
Apr 28, 11:18 PM CDT	Severe Thunderstorm Warning	EWX	Wilson	57 min
Apr 28, 11:23 PM CDT	Severe Thunderstorm Warning	EWX	Frio	67 min
Apr 29, 12:12 AM CDT	Severe Thunderstorm Warning	EWX	DeWitt	48 min
Apr 29, 12:35 AM CDT	Severe Thunderstorm Warning	EWX	Zavala	55 min
Apr 29, 12:47 AM CDT	Severe Thunderstorm Warning	EWX	Fayette	58 min

Nearby

Severe Thunderstorm Warnings in Texas, 1996 Every 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.