Alert archive / Texas / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 13, NWS Austin/San Antonio, TX

April 3, 20144 counties in Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 3, 2014, 7:34 PM CDT for 4 counties in Texas. It was in force for 41 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 3, 2014, 7:34 PM CDT (00:34 UTC)
Expired: Apr 3, 2014, 8:15 PM CDT
In force: 41 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon

Counties Blanco County, TX, Burnet County, TX, Gillespie County, TX, Llano County, TX

The radar

The Austin/San Antonio radar (KEWX), 101 km from the middle of the area, began a volume at 00:39 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.

What was reported inside it

Time	Report	Where	Remark
Apr 3, 8:00 PM CDT	HAIL 0.25	3 W Horseshoe Bay, TX

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Del Rio, TX (KDLF), launched 00:00Z, 0.6 hours before the alert went out and 264 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: 1322 J/kg
Mixed-layer CIN: -115 J/kg
Mixed-layer LCL: 2705 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 130 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

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

041 
WUUS54 KEWX 040034
SVREWX
TXC031-053-171-299-040115-
/O.NEW.KEWX.SV.W.0013.140404T0034Z-140404T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
734 PM CDT THU APR 3 2014

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN BLANCO COUNTY...
  SOUTHWESTERN BURNET COUNTY...
  NORTHEASTERN GILLESPIE COUNTY...
  SOUTHEASTERN LLANO COUNTY...

* UNTIL 815 PM CDT.

* AT 727 PM CDT...NWS METEOROLOGISTS HAVE DETECTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 7 MILES
  NORTH OF ECKERT...OR 17 MILES SOUTH OF LLANO...AND MOVING EAST AT
  35 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE BLOWOUT...SANDY...
  KINGSLAND...GRANITE SHOALS...HORSESHOE BAY...ROUND MOUNTAIN...
  CYPRESS MILL...MEADOWLAKES AND MARBLE FALLS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT FRIDAY
MORNING FOR SOUTH CENTRAL TEXAS.

&&

LAT...LON 3071 9818 3030 9827 3035 9880 3061 9882
TIME...MOT...LOC 0034Z 270DEG 28KT 3051 9870

$$

1 follow-up statement

772 
WWUS54 KEWX 040056
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
756 PM CDT THU APR 3 2014

TXC031-053-171-299-040115-
/O.CON.KEWX.SV.W.0013.000000T0000Z-140404T0115Z/
GILLESPIE TX-LLANO TX-BURNET TX-BLANCO TX-
756 PM CDT THU APR 3 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR NORTHERN BLANCO...SOUTHWESTERN BURNET...SOUTHEASTERN LLANO AND
NORTHEASTERN GILLESPIE COUNTIES...

AT 750 PM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR BLOWOUT...OR 
15 MILES SOUTHWEST OF KINGSLAND...MOVING EAST AT 30 MPH. THIS STORM
WILL BE AFFECTING PARTS OF SANDY...SUNRISE BEACH VILLAGE...GRANITE 
SHOALS...HORSESHOE BAY...ROUND MOUNTAIN...CYPRESS 
MILL...MEADOWLAKES...MARBLE FALLS AND COTTONWOOD SHORES. THE CORE OF 
THE STORM IS EXPECTED TO MOVE RIGHT OVER MARBLE FALLS WITHIN THE 
NEXT 15 MINUTES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT FRIDAY
MORNING FOR SOUTH CENTRAL TEXAS.

&&

LAT...LON 3071 9818 3030 9827 3035 9880 3061 9882
TIME...MOT...LOC 0053Z 270DEG 28KT 3051 9853

$$

OB

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 7:12 PM CDT	Severe Thunderstorm Warning	EWX	Edwards, Gillespie, Kerr, Real	48 min
Apr 3, 7:50 PM CDT	Severe Thunderstorm Warning	EWX	Gillespie, Kendall, Kerr	40 min
Apr 3, 8:31 PM CDT	Special Weather Statement	EWX	Blanco, Gillespie	44 min
Apr 3, 8:46 PM CDT	Severe Thunderstorm Warning	EWX	Blanco, Gillespie, Kendall, Kerr	44 min
Apr 3, 11:08 PM CDT	Severe Thunderstorm Warning	EWX	Kinney, Maverick	52 min
Apr 3, 11:12 PM CDT	Special Weather Statement	EWX	Uvalde	48 min
Apr 3, 11:20 PM CDT	Severe Thunderstorm Warning	EWX	Kinney, Uvalde	40 min
Apr 3, 11:39 PM CDT	Severe Thunderstorm Warning	EWX	Kinney, Maverick, Uvalde, Zavala	51 min
Apr 4, 12:30 AM CDT	Severe Thunderstorm Warning	EWX	Dimmit, Maverick, Zavala	45 min
Apr 4, 12:32 AM CDT	Severe Thunderstorm Warning	EWX	Frio, Medina, Uvalde, Zavala	58 min
Apr 4, 1:22 AM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Frio, Medina	38 min
Apr 4, 2:03 AM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Frio	42 min
Apr 4, 2:57 AM CDT	Special Weather Statement	EWX	Dimmit	48 min
Apr 4, 3:15 AM CDT	Severe Thunderstorm Warning	EWX	Dimmit	45 min

Nearby

Severe Thunderstorm Warnings in Texas, 2014 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.