Alert archive / Texas / Severe Thunderstorm Warnings in 2015

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

April 16, 2015Fayette County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 16, 2015, 6:53 PM CDT for Fayette County, Texas. It was in force for 31 min. 3 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 16, 2015, 6:53 PM CDT (23:53 UTC)
Expired: Apr 16, 2015, 7:24 PM CDT
In force: 31 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Fayette County, TX

The radar

The Ft Hood radar (KGRK), 100 km from the middle of the area, began a volume at 23:56 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 16, 7:03 PM CDT	TSTM WND DMG	1 Nw Muldoon, TX	LARGE TREES TOPPLED OVER BY THUNDERSTORMS
Apr 16, 7:05 PM CDT	HAIL 0.5	2 E Muldoon, TX
Apr 16, 7:11 PM CDT	TSTM WND DMG	La Grange, TX	LARGE TREES DOWNED BY THUNDERSTORM WIND GUSTS...HEAVY EQUIPMENT REQUIRED TO CLEAR THEM FROM ROADWAY

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 16, 2:22 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 11.9 hours before the alert went out and 256 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: 1748 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 554 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 211 m²/s²
Significant tornado parameter: 1.5
Supercell composite: 8.9

Open this sounding in Storm Lab

The text

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

326 
WUUS54 KEWX 162353
SVREWX
TXC149-170100-
/O.NEW.KEWX.SV.W.0013.150416T2353Z-150417T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
653 PM CDT THU APR 16 2015

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL FAYETTE COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 800 PM CDT

* AT 652 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER MULDOON...OR
  NEAR FLATONIA...MOVING NORTHEAST AT 30 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...
  LA GRANGE...ROUND TOP...MULDOON...NECHANITZ...WALHALLA...
  FREYBURG...O QUINN...SWISS ALP...PLUM...WARRENTON...WINEDALE...
  WALDECK...RUTERSVILLE...MULLINS PRAIRIE...RABBS PRAIRIE...FLOY AND
  WILLOW SPRINGS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY AWAY FROM
WINDOWS.

LARGE HAIL AND DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND
LIGHTNING IS OCCURRING WITH THIS STORM. 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 THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 2967 9705 2980 9719 3015 9678 3014 9676
      3015 9670 3009 9663 3008 9663 3006 9662
      3004 9662 2998 9658
TIME...MOT...LOC 2352Z 224DEG 26KT 2978 9708 

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

CP

1 follow-up statement

002 
WWUS54 KEWX 170024
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
724 PM CDT THU APR 16 2015

TXC149-170034-
/O.CAN.KEWX.SV.W.0013.000000T0000Z-150417T0100Z/
FAYETTE TX-
724 PM CDT THU APR 16 2015

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL FAYETTE COUNTY IS
CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING HAS BEEN CANCELLED.  HOWEVER GUSTY WINDS AND
HEAVY RAIN ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
SOUTH CENTRAL TEXAS.

LAT...LON 2967 9705 2980 9719 3015 9678 3014 9676
      3015 9670 3009 9663 3008 9663 3006 9662
      3004 9662 2998 9658
TIME...MOT...LOC 0022Z 224DEG 26KT 2995 9689 

$$

CP

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 16, 1:16 AM CDT	Severe Thunderstorm Warning	EWX	Val Verde	44 min
Apr 16, 1:38 AM CDT	Special Weather Statement	EWX	Terrell	37 min
Apr 16, 2:05 AM CDT	Special Weather Statement	EWX	Val Verde	40 min
Apr 16, 8:50 AM CDT	Special Weather Statement	EWX	Kinney	25 min
Apr 16, 9:13 AM CDT	Special Weather Statement	EWX	Kinney	47 min
Apr 16, 9:44 AM CDT	Special Weather Statement	EWX	Edwards	31 min
Apr 16, 10:06 AM CDT	Special Weather Statement	EWX	Real	39 min
Apr 16, 11:55 AM CDT	Special Weather Statement	EWX	Gonzales, Guadalupe, Wilson	50 min
Apr 16, 12:14 PM CDT	Special Weather Statement	EWX	Bandera, Kerr, Real, Uvalde	46 min
Apr 16, 12:50 PM CDT	Special Weather Statement	EWX	Gonzales	40 min
Apr 16, 1:09 PM CDT	Special Weather Statement	EWX	Bandera, Kendall, Real, Uvalde	51 min
Apr 16, 1:52 PM CDT	Special Weather Statement	EWX	Atascosa	38 min
Apr 16, 2:04 PM CDT	Special Weather Statement	EWX	Bandera, Kendall	56 min
Apr 16, 2:16 PM CDT	Special Weather Statement	EWX	Kendall	44 min
Apr 16, 2:28 PM CDT	Special Weather Statement	EWX	DeWitt, Lavaca	32 min
Apr 16, 2:31 PM CDT	Special Weather Statement	EWX	Wilson	44 min
Apr 16, 2:41 PM CDT	Special Weather Statement	EWX	Guadalupe	49 min
Apr 16, 2:51 PM CDT	Special Weather Statement	EWX	Blanco	39 min
Apr 16, 3:09 PM CDT	Special Weather Statement	EWX	Bandera, Kendall, Kerr	51 min
Apr 16, 3:10 PM CDT	Special Weather Statement	EWX	Lavaca	20 min
Apr 16, 3:13 PM CDT	Special Weather Statement	EWX	Gonzales	32 min
Apr 16, 3:18 PM CDT	Special Weather Statement	EWX	Guadalupe	42 min
Apr 16, 3:21 PM CDT	Severe Thunderstorm Warning	EWX	Blanco, Hays	39 min
Apr 16, 3:24 PM CDT	Special Weather Statement	EWX	Comal	36 min
Apr 16, 3:36 PM CDT	Severe Thunderstorm Warning	EWX	Bexar, Comal	54 min
Apr 16, 3:50 PM CDT	Special Weather Statement	EWX	Gonzales	25 min
Apr 16, 3:59 PM CDT	Special Weather Statement	EWX	Caldwell, Fayette	61 min
Apr 16, 4:03 PM CDT	Special Weather Statement	EWX	Hays, Travis	27 min
Apr 16, 4:19 PM CDT	Severe Thunderstorm Warning	EWX	Caldwell, Comal, Guadalupe, Hays	41 min
Apr 16, 4:34 PM CDT	Special Weather Statement	EWX	Bastrop	41 min
Apr 16, 4:45 PM CDT	Special Weather Statement	EWX	Bastrop, Caldwell, Travis	60 min
Apr 16, 4:52 PM CDT	Special Weather Statement	EWX	Caldwell, Hays, Travis	53 min
Apr 16, 5:20 PM CDT	Areal Flood Advisory	EWX	Bastrop, Caldwell, Hays, Travis	3 hr
Apr 16, 5:34 PM CDT	Special Weather Statement	EWX	Caldwell	26 min
Apr 16, 6:17 PM CDT	Areal Flood Advisory	EWX	Gonzales	118 min
Apr 16, 6:25 PM CDT	Special Weather Statement	EWX	Fayette	65 min
Apr 16, 6:48 PM CDT	Areal Flood Advisory	EWX	Fayette	117 min

Nearby

Severe Thunderstorm Warnings in Texas, 2015 Every severe thunderstorm warning in 2015

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.