Alert archive / Texas / Tornado Warnings in 2014

Tornado Warning 7, NWS Austin/San Antonio, TX

June 10, 2014Lavaca County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Jun 10, 2014, 2:03 AM CDT for Lavaca County, Texas. It was in force for 27 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: Jun 10, 2014, 2:03 AM CDT (07:03 UTC)
Expired: Jun 10, 2014, 2:30 AM CDT
In force: 27 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon

County Lavaca County, TX

The radar

The Austin/San Antonio radar (KEWX), 139 km from the middle of the area, began a volume at 07:06 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

Corpus Christi, TX (KCRP), launched 00:00Z, 7.1 hours before the alert went out and 190 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: 1611 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 1185 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 96 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.9

Open this sounding in Storm Lab

The text

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

213 
WFUS54 KEWX 100703
TOREWX
TXC285-100730-
/O.NEW.KEWX.TO.W.0007.140610T0703Z-140610T0730Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
203 AM CDT TUE JUN 10 2014

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL LAVACA COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 230 AM CDT

* AT 158 AM CDT...NWS METEOROLOGISTS HAVE DETECTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES NORTHEAST OF
  VIENNA...OR 16 MILES EAST OF HALLETTSVILLE...MOVING SOUTHEAST AT 25
  MPH.

* THE TORNADO WILL BE NEAR...
  FM 2437 AT THE COLORADO COUNTY LINE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
QUARTER SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE 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 IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL 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 2926 9664 2926 9665 2937 9683 2951 9672
      2934 9656 2933 9656
TIME...MOT...LOC 0701Z 306DEG 21KT 2942 9667

$$

1 follow-up statement

171 
WWUS54 KEWX 100720
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
220 AM CDT TUE JUN 10 2014

TXC285-100730-
/O.CON.KEWX.TO.W.0007.000000T0000Z-140610T0730Z/
LAVACA TX-
220 AM CDT TUE JUN 10 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 AM CDT FOR EAST
CENTRAL LAVACA COUNTY...

AT 217 AM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A TORNADO. 
THIS TORNADO WAS LOCATED OVER EXTREME SOUTH CENTRAL COLORADO
COUNTY...OR 22 MILES EAST OF HALLETTSVILLE...MOVING SOUTHEAST AT 25
MPH.

THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE 
INDICATED COUNTY ALONG THE COLORADO COUNTY LINE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
HALF DOLLAR SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL 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 2926 9664 2926 9665 2934 9677 2945 9667
      2934 9656 2933 9656
TIME...MOT...LOC 0720Z 306DEG 21KT 2935 9657

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 9, 7:24 PM CDT	Special Weather Statement	EWX	Comal	36 min
Jun 9, 7:36 PM CDT	Special Weather Statement	EWX	Milam	9 min
Jun 9, 8:28 PM CDT	Special Weather Statement	EWX	Lee	47 min
Jun 9, 8:39 PM CDT	Severe Thunderstorm Warning	EWX	Lee	66 min
Jun 9, 9:03 PM CDT	Areal Flood Advisory	EWX	Lee	117 min
Jun 9, 11:55 PM CDT	Areal Flood Advisory	EWX	Fayette	3 hr
Jun 10, 12:40 AM CDT	Special Weather Statement	EWX	Fayette	50 min
Jun 10, 1:06 AM CDT	Severe Thunderstorm Warning	EWX	Fayette, Lavaca	24 min
Jun 10, 1:20 AM CDT	Areal Flood Advisory	EWX	Fayette	2 hr
Jun 10, 1:31 AM CDT	Tornado Warning	EWX	Lavaca	29 min
Jun 10, 2:34 AM CDT	Special Weather Statement	EWX	Lavaca	41 min
Jun 10, 3:21 AM CDT	Areal Flood Advisory	EWX	Lavaca	3 hr
Jun 10, 3:47 AM CDT	Special Weather Statement	EWX	Lavaca	43 min
Jun 10, 4:00 AM CDT	Special Weather Statement	EWX	DeWitt	45 min

Nearby

Tornado Warnings in Texas, 2014 Every tornado warning in 2014 Tornadoes in 2014

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.