Alert archive / Texas / Tornado Warnings in 2012

Tornado Warning 26, NWS Austin/San Antonio, TX

October 14, 2012Burnet County, Llano County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Oct 14, 2012, 1:56 AM CDT for Burnet County, Llano 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
Oct 14, 2012, 1:56 AM CDT (06:56 UTC)
Expired
Oct 14, 2012, 2:15 AM CDT
In force
19 min
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon

Counties Burnet County, TX, Llano County, TX

The radar

The Ft Hood radar (KGRK), 91 km from the middle of the area, began a volume at 06:59 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

Fort Worth, TX (KFWD), launched 00:00Z, 6.9 hours before the alert went out and 252 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 2012-10-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1344 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 00:00Z on 2012-10-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 324 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
1344 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
759 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
324 m²/s²
0-3 km storm-relative helicity
345 m²/s²
Significant tornado parameter
3.1
Supercell composite
17.2

Open this sounding in Storm Lab

The text

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

436 
WFUS54 KEWX 140656
TOREWX
TXC053-299-140715-
/O.NEW.KEWX.TO.W.0026.121014T0656Z-121014T0715Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
156 AM CDT SUN OCT 14 2012

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL BURNET COUNTY...
  EAST CENTRAL LLANO COUNTY...

* UNTIL 215 AM CDT.

* AT 153 AM CDT...NWS METEOROLOGISTS HAVE DETECTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR INKS LAKE STATE
  PARK...OR ABOUT NEAR BUCHANAN DAM...MOVING EAST AT 30 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE BURNET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 3085 9820 3063 9822 3063 9840 3066 9850
      3084 9849
TIME...MOT...LOC 0656Z 273DEG 26KT 3075 9839

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 14, 12:32 AM CDTSevere Thunderstorm WarningEWXLlano43 min
Oct 14, 1:11 AM CDTSevere Thunderstorm WarningEWXBurnet, Llano49 min
Oct 14, 2:10 AM CDTAreal Flood AdvisoryEWXBurnet, Llano3 hr
Oct 14, 2:14 AM CDTSevere Thunderstorm WarningEWXBurnet, Travis, Williamson46 min
Oct 14, 2:59 AM CDTSpecial Weather StatementEWXWilliamson46 min

Nearby

Tornado Warnings in Texas, 2012Every tornado warning in 2012Tornadoes in 2012

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.