Alert archive / Texas / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 279, NWS Austin/San Antonio, TX

October 10, 2006Travis County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Oct 10, 2006, 7:20 AM CDT for Travis County, Texas. It was in force for 25 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: Oct 10, 2006, 7:20 AM CDT (12:20 UTC)
Expired: Oct 10, 2006, 7:45 AM CDT
In force: 25 min
Issued by: NWS Austin/San Antonio, TX
Area: Counties, with a storm outline in the text

County Travis County, TX

The radar

The Ft Hood radar (KGRK), 58 km from the middle of the area, began a volume at 12:22 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Oct 10, 3:18 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 0.3 hours before the alert went out and 281 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: 510 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 783 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 65 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

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.

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 10, 3:55 AM CDT, 3 hours 25 minutes earlier.

Area forecast discussion, Oct 10, 3:55 AM CDT, 3 hours 25 minutes before

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Hazardous weather outlook, Oct 10, 5:07 AM CDT, 2 hours 13 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
507 AM CDT TUE OCT 10 2006

TXZ171>173-183>194-202>209-217>225-228-111015-
LLANO-BURNET-WILLIAMSON-VAL VERDE-EDWARDS-REAL-KERR-BANDERA-
GILLESPIE-KENDALL-BLANCO-HAYS-TRAVIS-BASTROP-LEE-KINNEY-UVALDE-
MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL-FAYETTE-MAVERICK-ZAVALA-
FRIO-ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA-DIMMIT-
507 AM CDT TUE OCT 10 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...TODAY AND TONIGHT
A TORNADO WATCH HAS BEEN ISSUED FOR PORTIONS OF THE EDWARDS
PLATEAU...HILL COUNTRY AND NORTHERN PORTIONS OF SOUTH CENTRAL
TEXAS UNTIL 10 AM. UPPER DISTURBANCES MOVING EAST WILL COMBINE
WITH AN UNSTABLE GULF AIRMASS TO PRODUCE SCATTERED TO NUMEROUS
SHOWERS AND THUNDERSTORMS TODAY AND TONIGHT. A FEW OF THESE
STORMS COULD BECOME SEVERE WITH DAMAGING WINDS AND HAIL AND
ISOLATED TORNADOES. SOME LOCALIZED FLOODING IS ALSO POSSIBLE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
A SIGNIFICANT FALL COLD FRONT WILL SWEEP SOUTHWARD OVER THE AREA
THURSDAY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS ALONG THE
FRONT. THEN...POST FRONTAL OVERRUNNING RAINS WILL BEGIN SATURDAY
WITH ELEVATED SHOWERS AND THUNDERSTORMS INTO MONDAY. STORMS
DURING THIS PERIOD ARE NOT EXPECTED TO REACH SEVERE LIMITS.

.SPOTTER INFORMATION STATEMENT...SPOTTERS MAY BE NEEDED TODAY AND
TONIGHT.

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 10, 8:22 AM CDT	Flash Flood Warning	EWX	Blanco, Gillespie, Kerr	113 min
Oct 10, 8:34 AM CDT	Flash Flood Warning	EWX	Travis, Williamson	3 hr
Oct 10, 9:17 AM CDT	Severe Thunderstorm Warning	EWX	Hays	58 min

Nearby

Severe Thunderstorm Warnings in Texas, 2006 Every severe thunderstorm warning in 2006

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.