Alert archive / Texas / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 121, NWS Austin/San Antonio, TX

September 15, 1996Bexar County, Comal County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Sep 15, 1996, 5:08 AM CDT for Bexar County, Comal County, Texas. It was in force for 52 min. 3 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
Sep 15, 1996, 5:08 AM CDT (10:08 UTC)
Expired
Sep 15, 1996, 6:00 AM CDT
In force
52 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

Counties Bexar County, TX, Comal County, TX

The radar

The Austin/San Antonio radar (KEWX), 37 km from the middle of the area, began a volume at 10:09 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
Sep 15, 5:08 AM CDTThunderstorm Wind 65San Antonio, TX
Sep 15, 5:15 AM CDTThunderstorm WindLive Oak, TX
Sep 15, 5:30 AM CDTThunderstorm WindNorthern Part, 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

Del Rio, TX (KDRT), launched 00:00Z, 10.1 hours before the alert went out and 238 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, Del Rio, TX at 00:00Z on 1996-09-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1372 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, Del Rio, TX at 00:00Z on 1996-09-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 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
1372 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
1184 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
243 m²/s²
Significant tornado parameter
0.8
Supercell composite
6.8

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Sep 15, 2:07 AM CDT, 3 hours 1 minute before
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Local storm report, Sep 15, 3:05 AM CDT, 2 hours 3 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED EVENT TIMES...
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
205 AM CDT SUN SEP 15 1996

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1003 PM    DEL RIO                   TX   58 MPH TSTM GUST
09/14/96   VAL VERDE                      RANGER REPORTED 58 MPH
                                          WIND AT SAN PEDRO CYN 8MI
                                          NW OF DEL RIO.

1045 PM    DEL RIO                   TX   TORNADO
09/14/96   VAL VERDE                      PUBLIC REPORTED PSBL
                                          TORNADO ON GROUND 15-20 MI
                                          NORTH OF DEL RIO ON US
                                          277.

1107 PM    DEL RIO                   TX   TORNADO
09/14/96   VAL VERDE                      PUBLIC REPORTED PSBL
                                          TORNADO ON GROUND 12 NW OF
                                          DEL RIO ON US 90.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 14, 9:56 PM CDTFlash Flood WarningEWXVal Verde4 hr
Sep 14, 10:14 PM CDTSevere Thunderstorm WarningEWXVal Verde61 min
Sep 14, 10:43 PM CDTSevere Thunderstorm WarningEWXKinney62 min
Sep 14, 10:48 PM CDTFlash Flood WarningEWXVal Verde42 min
Sep 14, 10:48 PM CDTTornado WarningEWXVal Verde42 min
Sep 14, 10:59 PM CDTTornado WarningEWXEdwards61 min
Sep 14, 11:41 PM CDTSevere Thunderstorm WarningEWXKinney, Maverick64 min
Sep 15, 12:08 AM CDTFlash Flood WarningEWXKinney3 hr
Sep 15, 12:37 AM CDTFlash Flood WarningEWXEdwards3 hr
Sep 15, 12:56 AM CDTTornado WarningEWXUvalde64 min
Sep 15, 2:05 AM CDTSevere Thunderstorm WarningEWXUvalde55 min
Sep 15, 2:14 AM CDTFlash Flood WarningEWXReal, Uvalde3 hr
Sep 15, 3:22 AM CDTSevere Thunderstorm WarningEWXBandera, Medina68 min
Sep 15, 5:15 AM CDTSevere Thunderstorm WarningEWXGuadalupe60 min
Sep 15, 5:31 AM CDTSevere Thunderstorm WarningEWXHays44 min
Sep 15, 8:56 AM CDTFlash Flood WarningEWXLavaca3 hr

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.