Alert archive / Texas / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 69, NWS Austin/San Antonio, TX

April 12, 20167 counties in Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 12, 2016, 10:57 PM CDT for 7 counties in Texas. It was in force for 63 min. 2 reports 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 12, 2016, 10:57 PM CDT (03:57 UTC)
Expired: Apr 13, 2016, 12:00 AM CDT
In force: 63 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Bastrop County, TX, Caldwell County, TX, Fayette County, TX, Gonzales County, TX, Lavaca County, TX, Lee County, TX, Travis County, TX

The radar

The Austin/San Antonio radar (KEWX), 76 km from the middle of the area, began a volume at 03:57 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 12, 11:35 PM CDT	TSTM WND DMG	Shiner, TX	TREE BRANCHES BLOWN DOWN
Apr 12, 11:50 PM CDT	TSTM WND DMG	Smithville, TX	TREES UPROOTED BY THUNDERSTORM WINDS. TIME ESTIMATED WITH RADAR.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 12, 7:45 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 4.0 hours before the alert went out and 223 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: 634 J/kg
Mixed-layer CIN: -170 J/kg
Mixed-layer LCL: 912 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 247 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

As transmitted.

514 
WUUS54 KEWX 130357
SVREWX
TXC021-055-149-177-285-287-453-130500-
/O.NEW.KEWX.SV.W.0069.160413T0357Z-160413T0500Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1057 PM CDT TUE APR 12 2016

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN FAYETTE COUNTY IN SOUTH CENTRAL TEXAS...
  BASTROP COUNTY IN SOUTH CENTRAL TEXAS...
  CALDWELL COUNTY IN SOUTH CENTRAL TEXAS...
  SOUTHEASTERN TRAVIS COUNTY IN SOUTH CENTRAL TEXAS...
  NORTHEASTERN GONZALES COUNTY IN SOUTH CENTRAL TEXAS...
  SOUTH CENTRAL LEE COUNTY IN SOUTH CENTRAL TEXAS...
  NORTHWESTERN LAVACA COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL MIDNIGHT CDT

* AT 1056 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR AUSTIN BERGSTROM INT AP TO 12 MILES EAST OF
  LOCKHART TO PALMETO...MOVING EAST AT 40 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  AUSTIN...LOCKHART...BASTROP...LULING...LA GRANGE...SMITHVILLE...
  SCHULENBURG...HALLETTSVILLE...SHINER...FLATONIA...MOULTON...AUSTIN
  BERGSTROM INT AP...WAELDER...MUSTANG RIDGE...ROSANKY...PAIGE...CEDAR
  CREEK...MULDOON...CIRCLE D-KC ESTATE AND WYLDWOOD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

LARGE HAIL AND DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND
LIGHTNING IS OCCURRING WITH THESE STORMS. MOVE INDOORS IMMEDIATELY.
LIGHTNING IS ONE OF NATURES LEADING KILLERS. REMEMBER...IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 2963 9687 2961 9685 2935 9697 2961 9765
      2965 9763 2965 9764 2983 9765 3025 9775
      3023 9699 2967 9684
TIME...MOT...LOC 0356Z 291DEG 33KT 3019 9762 2981 9748 2960 9760 

HAIL...1.00IN
WIND...60MPH
 
$$

CP

1 follow-up statement

876 
WWUS54 KEWX 130435
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1135 PM CDT TUE APR 12 2016

TXC055-453-130445-
/O.CAN.KEWX.SV.W.0069.000000T0000Z-160413T0500Z/
CALDWELL TX-TRAVIS TX-
1135 PM CDT TUE APR 12 2016

...THE SEVERE THUNDERSTORM WARNING FOR CALDWELL AND SOUTHEASTERN
TRAVIS COUNTIES IS CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED
AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

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

LAT...LON 2963 9687 2961 9685 2935 9697 2950 9735
      2979 9732 3024 9747 3023 9699 2967 9684
TIME...MOT...LOC 0435Z 285DEG 52KT 3018 9725 2989 9705 2967 9703 2946
9715

$$

TXC021-149-177-285-287-130500-
/O.CON.KEWX.SV.W.0069.000000T0000Z-160413T0500Z/
FAYETTE TX-BASTROP TX-GONZALES TX-LEE TX-LAVACA TX-
1135 PM CDT TUE APR 12 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT
FOR WESTERN FAYETTE...SOUTHEASTERN BASTROP...NORTHEASTERN GONZALES...
SOUTH CENTRAL LEE AND NORTHWESTERN LAVACA COUNTIES...

AT 1135 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM CIRCLE D-KC ESTATES TO NEAR MULDOON TO NEAR FLATONIA
TO NEAR SHINER...MOVING EAST AT 60 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
BASTROP...LA GRANGE...SMITHVILLE...SCHULENBURG...HALLETTSVILLE...SHINER...
FLATONIA...MOULTON...WAELDER...ROSANKY...PAIGE...MULDOON...CIRCLE D-KC
ESTATE...CISTERN...CIRCLE D-KC ESTATES...CAMP SWIFT...WYLDWOOD...UPTON...
MORAVIA AND KOMENSKY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

LARGE HAIL AND DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND
LIGHTNING IS OCCURRING WITH THESE STORMS. MOVE INDOORS IMMEDIATELY.
LIGHTNING IS ONE OF NATURES LEADING KILLERS. REMEMBER...IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 2963 9687 2961 9685 2935 9697 2950 9735
      2979 9732 3024 9747 3023 9699 2967 9684
TIME...MOT...LOC 0435Z 285DEG 52KT 3018 9725 2989 9705 2967 9703 2946
9715

HAIL...1.00IN
WIND...60MPH
 
$$

CP

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 12, 7:07 PM CDT	Severe Thunderstorm Warning	EWX	Edwards, Val Verde	53 min
Apr 12, 7:57 PM CDT	Severe Thunderstorm Warning	EWX	Edwards, Real	63 min
Apr 12, 8:04 PM CDT	Special Weather Statement	EWX	Uvalde	26 min
Apr 12, 8:11 PM CDT	Severe Thunderstorm Warning	EWX	Maverick	64 min
Apr 12, 8:16 PM CDT	Severe Thunderstorm Warning	EWX	Bandera, Kendall, Kerr, Medina	59 min
Apr 12, 8:24 PM CDT	Severe Thunderstorm Warning	EWX	Medina, Uvalde	66 min
Apr 12, 8:43 PM CDT	Special Weather Statement	EWX	Bexar	47 min
Apr 12, 8:57 PM CDT	Special Weather Statement	EWX	Kerr	33 min
Apr 12, 9:02 PM CDT	Severe Thunderstorm Warning	EWX	Bexar, Comal, Medina	58 min
Apr 12, 9:09 PM CDT	Special Weather Statement	EWX	Kendall	36 min
Apr 12, 9:16 PM CDT	Special Weather Statement	EWX	Dimmit, Zavala	44 min
Apr 12, 9:29 PM CDT	Severe Thunderstorm Warning	EWX	Medina	61 min
Apr 12, 9:32 PM CDT	Special Weather Statement	EWX	Kerr	28 min
Apr 12, 9:36 PM CDT	Special Weather Statement	EWX	Blanco, Comal, Hays	54 min
Apr 12, 9:45 PM CDT	Severe Thunderstorm Warning	EWX	Dimmit, Zavala	60 min
Apr 12, 9:49 PM CDT	Severe Thunderstorm Warning	EWX	Bexar, Guadalupe, Wilson	56 min
Apr 12, 9:54 PM CDT	Special Weather Statement	EWX	Uvalde	36 min
Apr 12, 10:12 PM CDT	Severe Thunderstorm Warning	EWX	Maverick	48 min
Apr 12, 10:20 PM CDT	Special Weather Statement	EWX	Bastrop, Caldwell, Gonzales, Hays, Travis	55 min
Apr 12, 10:26 PM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bexar, Medina	64 min
Apr 12, 10:34 PM CDT	Special Weather Statement	EWX	Zavala	56 min
Apr 12, 10:38 PM CDT	Severe Thunderstorm Warning	EWX	DeWitt, Gonzales, Guadalupe, Wilson	52 min
Apr 12, 10:44 PM CDT	Areal Flood Advisory	EWX	Bexar	3 hr
Apr 12, 10:45 PM CDT	Areal Flood Advisory	EWX	Travis, Williamson	3 hr
Apr 12, 10:51 PM CDT	Special Weather Statement	EWX	Dimmit, Zavala	54 min
Apr 12, 11:22 PM CDT	Severe Thunderstorm Warning	EWX	Dimmit	53 min
Apr 12, 11:25 PM CDT	Severe Thunderstorm Warning	EWX	DeWitt, Gonzales, Lavaca	49 min
Apr 12, 11:30 PM CDT	Special Weather Statement	EWX	Frio, Medina	60 min
Apr 12, 11:33 PM CDT	Special Weather Statement	EWX	Bexar	27 min
Apr 12, 11:45 PM CDT	Severe Thunderstorm Warning	EWX	Bastrop, Fayette, Gonzales, Lavaca, Lee	45 min
Apr 13, 12:26 AM CDT	Special Weather Statement	EWX	Atascosa, Frio	64 min
Apr 13, 12:29 AM CDT	Special Weather Statement	EWX	Lee	31 min

Nearby

Severe Thunderstorm Warnings in Texas, 2016 Every severe thunderstorm warning in 2016

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.