Alert archive / Texas / Tornado Warnings in 2004

Tornado Warning 32, NWS Austin/San Antonio, TX

November 23, 2004Williamson County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Nov 23, 2004, 10:38 AM CST for Williamson County, Texas. It was in force for 22 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Nov 23, 2004, 10:38 AM CST (16:38 UTC)
Expired: Nov 23, 2004, 11:00 AM CST
In force: 22 min
Issued by: NWS Austin/San Antonio, TX
Area: Counties, with a storm outline in the text

County Williamson County, TX

The watch it was issued in

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

Issued	Product	Office	Lasted
Nov 23, 8:45 AM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 4.6 hours before the alert went out and 250 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: 130 J/kg
Mixed-layer CIN: -241 J/kg
Mixed-layer LCL: 496 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 163 m²/s²
0-3 km storm-relative helicity: 226 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS54 KEWX 231638
TOREWX
TXC491-231700-
/X.NEW.KEWX.TO.W.0016.041123T1638Z-041123T1700Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1038 AM CST TUE NOV 23 2004

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* TORNADO WARNING FOR THE FOLLOWING COUNTIES...
  WILLIAMSON

* UNTIL 1100 AM CST

* AT 1038 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 4 MILES
  SOUTHEAST OF THRALL...MOVING NORTHEAST AT 30 MPH.

* THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
  INDICATED COUNTY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 PM CST TUESDAY AFTERNOON
FOR SOUTH CENTRAL TEXAS.

LAT...LON 3055 9739 3052 9719 3054 9719 3074 9728

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 22, 8:39 PM CST	Flash Flood Warning	EWX	Lavaca	3 hr
Nov 23, 8:51 AM CST	Severe Thunderstorm Warning	EWX	Travis	54 min
Nov 23, 9:19 AM CST	Flash Flood Warning	EWX	Blanco, Burnet, Hays, Travis, Williamson	4 hr
Nov 23, 9:33 AM CST	Flash Flood Warning	EWX	Bexar, Comal, Kendall	4 hr
Nov 23, 9:44 AM CST	Tornado Warning	EWX	Travis	31 min
Nov 23, 10:01 AM CST	Severe Thunderstorm Warning	EWX	Comal	59 min
Nov 23, 10:09 AM CST	Severe Thunderstorm Warning	EWX	Williamson	66 min
Nov 23, 10:23 AM CST	Severe Thunderstorm Warning	EWX	Hays	67 min
Nov 23, 10:59 AM CST	Tornado Warning	EWX	Williamson	16 min
Nov 23, 11:20 AM CST	Severe Thunderstorm Warning	EWX	Caldwell	55 min
Nov 23, 11:26 AM CST	Severe Thunderstorm Warning	EWX	Travis	34 min
Nov 23, 11:41 AM CST	Severe Thunderstorm Warning	EWX	Bastrop	64 min
Nov 23, 1:04 PM CST	Severe Thunderstorm Warning	EWX	Fayette	56 min
Nov 23, 1:09 PM CST	Tornado Warning	EWX	Fayette	36 min
Nov 23, 1:38 PM CST	Tornado Warning	EWX	Fayette	52 min
Nov 23, 3:01 PM CST	Severe Thunderstorm Warning	EWX	Maverick	74 min
Nov 23, 3:36 PM CST	Tornado Warning	EWX	Maverick	24 min
Nov 23, 3:58 PM CST	Tornado Warning	EWX	Maverick, Zavala	62 min
Nov 23, 4:23 PM CST	Severe Thunderstorm Warning	EWX	Williamson	67 min
Nov 23, 4:25 PM CST	Severe Thunderstorm Warning	EWX	Gillespie	65 min
Nov 23, 4:42 PM CST	Severe Thunderstorm Warning	EWX	Llano	63 min
Nov 23, 4:58 PM CST	Tornado Warning	EWX	Zavala	32 min
Nov 23, 5:08 PM CST	Tornado Warning	EWX	Maverick	37 min
Nov 23, 5:17 PM CST	Tornado Warning	EWX	Frio	58 min
Nov 23, 5:28 PM CST	Severe Thunderstorm Warning	EWX	Zavala	62 min
Nov 23, 5:32 PM CST	Tornado Warning	EWX	Zavala	58 min
Nov 23, 5:36 PM CST	Severe Thunderstorm Warning	EWX	Burnet	54 min
Nov 23, 5:51 PM CST	Tornado Warning	EWX	Burnet	54 min

Nearby

Tornado Warnings in Texas, 2004 Every tornado warning in 2004 Tornadoes in 2004

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.