Alert archive / Texas / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 138, NWS Austin/San Antonio, TX

September 20, 1996Burnet County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Sep 20, 1996, 7:56 PM CDT for Burnet County, Texas. It was in force for 64 min. 2 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 20, 1996, 7:56 PM CDT (00:56 UTC)
Expired
Sep 20, 1996, 9:00 PM CDT
In force
64 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Burnet County, TX

What was reported inside it

TimeReportWhereRemark
Sep 20, 8:09 PM CDTTornado F0Smithwick, TX
Sep 20, 8:15 PM CDTHail 1.25Marble Falls, 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

Fort Worth, TX (KFWD), launched 00:00Z, 0.9 hours before the alert went out and 242 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 1996-09-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1680 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 1996-09-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 square meters per square second.19395878Sfc1 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
1680 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
961 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
125 m²/s²
Significant tornado parameter
0.9
Supercell composite
4.9

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 20, 7:46 PM CDTFlash Flood WarningEWXTravis, Williamson3 hr
Sep 20, 7:46 PM CDTSevere Thunderstorm WarningEWXTravis, Williamson3 hr
Sep 20, 8:18 PM CDTTornado WarningEWXBurnet, Travis57 min
Sep 20, 8:56 PM CDTTornado WarningEWXTravis64 min
Sep 20, 9:16 PM CDTSevere Thunderstorm WarningEWXHays59 min
Sep 20, 9:33 PM CDTSevere Thunderstorm WarningEWXBastrop, Lee117 min
Sep 20, 10:10 PM CDTSevere Thunderstorm WarningEWXHays65 min
Sep 20, 10:31 PM CDTSevere Thunderstorm WarningEWXCaldwell59 min
Sep 20, 10:50 PM CDTSevere Thunderstorm WarningEWXComal, Guadalupe55 min
Sep 21, 12:08 AM CDTSevere Thunderstorm WarningEWXLavaca52 min
Sep 21, 12:09 AM CDTTornado WarningEWXLavaca51 min
Sep 21, 12:40 AM CDTTornado WarningEWXDeWitt65 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.