Alert archive / Texas / Tornado Warnings in 2004

Tornado Warning 20, NWS Austin/San Antonio, TX

November 16, 2004Gillespie County, Llano County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Nov 16, 2004, 6:46 PM CST for Gillespie County, Llano County, Texas. It was in force for 44 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 16, 2004, 6:46 PM CST (00:46 UTC)
Expired
Nov 16, 2004, 7:30 PM CST
In force
44 min
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

Counties Gillespie County, TX, Llano County, TX

The radar

The Austin/San Antonio radar (KEWX), 115 km from the middle of the area, began a volume at 00:48 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 nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 0.8 hours before the alert went out and 215 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 2004-11-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2004-11-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -49 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
727 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
-49 m²/s²
0-3 km storm-relative helicity
-12 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

067 
WFUS54 KEWX 170048
TOREWX
TXC171-299-170130-
/X.NEW.KEWX.TO.W.0005.041117T0046Z-041117T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
646 PM CST TUE NOV 16 2004

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* TORNADO WARNING FOR THE FOLLOWING COUNTIES...
  LLANO
  GILLESPIE

* UNTIL 730 PM CST

* AT 640 PM CST...LOCAL LAW ENFORCEMENT REPORTED A TORNADO 13 MILES 
  WEST OF FREDERICKSBURG...NEAR HIGHWAY 290...MOVING NORTHWEST AT 10
  MPH.

* CITIES IN THE PATH OF THIS TORNADO...DOSS.  

IF YOU ARE IN A MOBILE HOME OR VEHICLE...GET OUT AND GO TO A STURDY
SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH
OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

THE SAFEST PLACE TO BE DURING A TORNADO IS ON THE LOWEST FLOOR OF A
BUILDING IN AN INTERIOR HALLWAY...BATHROOM...OR CLOSET. COVER
YOURSELF WITH BLANKETS...PILLOWS OR EVEN A MATTRESS FOR BETTER
PROTECTION.

LAT...LON 3017 9882 3014 9886 3014 9907 3017 9906
      3050 9906 3050 9897 3051 9896 3063 9896
      3079 9880

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 16, 6:03 PM CSTTornado WarningEWXAtascosa, Bandera, Bexar, Frio, Kendall, Medina42 min
Nov 16, 6:21 PM CSTTornado WarningEWXGillespie, Llano24 min
Nov 16, 6:22 PM CSTFlash Flood WarningEWXGillespie, Kendall, Kerr, Llano4 hr
Nov 16, 6:47 PM CSTTornado WarningEWXKendall28 min
Nov 16, 7:13 PM CSTTornado WarningEWXBexar32 min
Nov 16, 7:45 PM CSTTornado WarningEWXBexar15 min
Nov 16, 7:52 PM CSTTornado WarningEWXBlanco38 min
Nov 16, 7:57 PM CSTTornado WarningEWXComal48 min
Nov 16, 8:22 PM CSTFlash Flood WarningEWXBlanco, Comal, Guadalupe3 hr
Nov 16, 8:28 PM CSTTornado WarningEWXBlanco32 min
Nov 16, 8:44 PM CSTTornado WarningEWXComal, Hays31 min
Nov 16, 9:15 PM CSTFlash Flood WarningEWXEdwards, Kerr, Kinney, Real, Uvalde, Val Verde6 hr
Nov 16, 9:59 PM CSTFlash Flood WarningEWXGillespie, Kendall, Llano4 hr
Nov 16, 10:04 PM CSTFlash Flood WarningEWXHays, Travis3 hr
Nov 16, 11:10 PM CSTFlash Flood WarningEWXAtascosa, Bandera, Bexar, Blanco, Comal, Guadalupe and 1 more3 hr
Nov 16, 11:22 PM CSTFlash Flood WarningEWXBurnet, Williamson3 hr
Nov 17, 12:14 AM CSTFlash Flood WarningEWXHays, Travis3 hr
Nov 17, 1:48 AM CSTFlash Flood WarningEWXGillespie, Kendall, Llano117 min
Nov 17, 2:07 AM CSTFlash Flood WarningEWXAtascosa, Bandera, Bexar, Blanco, Burnet, Comal and 3 more6 hr
Nov 17, 3:13 AM CSTFlash Flood WarningEWXEdwards, Kerr, Kinney, Real, Uvalde, Val Verde4 hr
Nov 17, 3:21 AM CSTFlash Flood WarningEWXHays, Travis6 hr
Nov 17, 3:43 AM CSTFlash Flood WarningEWXGillespie, Kendall, Llano5 hr
Nov 17, 6:24 AM CSTFlash Flood WarningEWXWilson3 hr
Nov 17, 7:25 AM CSTFlash Flood WarningEWXAtascosa, Bexar, Blanco, Burnet, Caldwell, Comal and 7 more4 hr
Nov 17, 10:28 AM CSTFlash Flood WarningEWXBastrop, DeWitt, Fayette, Lavaca, Lee3 hr
Nov 17, 10:56 AM CSTTornado WarningEWXLavaca49 min

Nearby

Tornado Warnings in Texas, 2004Every tornado warning in 2004Tornadoes 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; radar from the NEXRAD Level II archive.