Alert archive / Texas / Tornado Warnings in 2007

Tornado Warning 29, NWS Austin/San Antonio, TX

May 2, 2007Uvalde County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at May 2, 2007, 8:26 PM CDT for Uvalde County, Texas. It was in force for 19 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: May 2, 2007, 8:26 PM CDT (01:26 UTC)
Expired: May 2, 2007, 8:45 PM CDT
In force: 19 min
Issued by: NWS Austin/San Antonio, TX
Area: Counties, with a storm outline in the text

County Uvalde County, TX

The radar

The Laughlin AFB radar (KDFX), 74 km from the middle of the area, began a volume at 01:28 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
May 2, 5:53 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 1.4 hours before the alert went out and 129 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: 2899 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 663 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: -18 m²/s²
0-3 km storm-relative helicity: -14 m²/s²
Significant tornado parameter: -0.2
Supercell composite: -1.2

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KEWX 030127
TOREWX
TXC463-030145-
/O.NEW.KEWX.TO.W.0029.070503T0126Z-070503T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
826 PM CDT WED MAY 2 2007

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* TORNADO WARNING FOR...
  UVALDE COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 845 PM CDT

* AT 823 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE
  DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER
  UVALDE COUNTY...OR ABOUT 15 MILES NORTHEAST OF BATESVILLE...MOVING
  SOUTHEAST AT 25 MPH.

* THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF 
  EXTREME SOUTHEAST UVALDE COUNTY.   

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT THURSDAY MORNING
FOR SOUTH CENTRAL TEXAS.

LAT...LON 2923 9960 2910 9959 2910 9942 2929 9943

$$

1 follow-up statement

000 
WWUS54 KEWX 030143
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
844 PM CDT WED MAY 2 2007

TXC453-491-030154-
/O.EXP.KEWX.SV.W.0172.000000T0000Z-070503T0145Z/
WILLIAMSON TX-TRAVIS TX-
844 PM CDT WED MAY 2 2007

...THE SEVERE THUNDERSTORM WARNING FOR TRAVIS AND WILLIAMSON COUNTIES
EXPIRES AT 845 PM CDT...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT THURSDAY MORNING
FOR SOUTH CENTRAL TEXAS.

LAT...LON 3088 9763 3075 9728 3055 9719 3043 9727
      3042 9734 3044 9737 3042 9739 3020 9751
      3043 9813 3048 9809 3052 9811 3078 9797
      3092 9783

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 2, 7:02 PM CDT	Severe Thunderstorm Warning	EWX	Blanco	28 min
May 2, 7:02 PM CDT	Severe Thunderstorm Warning	EWX	Gillespie	28 min
May 2, 7:27 PM CDT	Severe Thunderstorm Warning	EWX	Bandera	63 min
May 2, 7:29 PM CDT	Flash Flood Warning	EWX	Uvalde	3 hr
May 2, 7:32 PM CDT	Severe Thunderstorm Warning	EWX	Blanco, Burnet	43 min
May 2, 7:49 PM CDT	Severe Thunderstorm Warning	EWX	Travis, Williamson	56 min
May 2, 7:59 PM CDT	Severe Thunderstorm Warning	EWX	Kendall	61 min
May 2, 7:59 PM CDT	Severe Thunderstorm Warning	EWX	Uvalde	31 min
May 2, 8:06 PM CDT	Tornado Warning	EWX	Uvalde	24 min
May 2, 8:20 PM CDT	Severe Thunderstorm Warning	EWX	Zavala	40 min
May 2, 8:30 PM CDT	Severe Thunderstorm Warning	EWX	Frio, Medina	60 min
May 2, 8:42 PM CDT	Tornado Warning	EWX	Frio, Medina	18 min
May 2, 9:02 PM CDT	Tornado Warning	EWX	Frio	28 min
May 2, 9:20 PM CDT	Flash Flood Warning	EWX	Frio	4 hr
May 2, 9:20 PM CDT	Severe Thunderstorm Warning	EWX	Frio	55 min
May 2, 9:29 PM CDT	Severe Thunderstorm Warning	EWX	Bexar, Comal	31 min
May 2, 9:41 PM CDT	Flash Flood Warning	EWX	Hays	2 hr
May 2, 10:46 PM CDT	Flash Flood Warning	EWX	Bastrop, Caldwell, Lee	3 hr
May 2, 10:46 PM CDT	Flash Flood Warning	EWX	Bastrop, Caldwell, Guadalupe, Lee	3 hr
May 2, 10:48 PM CDT	Severe Thunderstorm Warning	EWX	Caldwell, Gonzales, Guadalupe	57 min
May 2, 10:54 PM CDT	Severe Thunderstorm Warning	EWX	Gonzales, Guadalupe, Wilson	21 min
May 3, 12:26 AM CDT	Flash Flood Warning	EWX	DeWitt, Fayette, Gonzales, Lavaca	3 hr
May 3, 1:04 AM CDT	Severe Thunderstorm Warning	EWX	Zavala	43 min
May 3, 1:09 AM CDT	Severe Thunderstorm Warning	EWX	Travis	55 min
May 3, 1:10 AM CDT	Severe Thunderstorm Warning	EWX	Blanco	34 min
May 3, 1:16 AM CDT	Flash Flood Warning	EWX	Blanco, Hays, Travis	3 hr
May 3, 1:16 AM CDT	Flash Flood Warning	EWX	Blanco, Hays, Kendall, Travis, Williamson	3 hr
May 3, 1:29 AM CDT	Flash Flood Warning	EWX	Burnet	3 hr

Nearby

Tornado Warnings in Texas, 2007 Every tornado warning in 2007 Tornadoes in 2007

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.