Alert archive / Texas / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 91, NWS Austin/San Antonio, TX

April 27, 20168 counties in Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 27, 2016, 2:04 AM CDT for 8 counties in Texas. It was in force for 56 min. 10 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 27, 2016, 2:04 AM CDT (07:04 UTC)
Expired: Apr 27, 2016, 3:00 AM CDT
In force: 56 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Bastrop County, TX, Bexar County, TX, Caldwell County, TX, Comal County, TX, Guadalupe County, TX, Hays County, TX, Travis County, TX, Williamson County, TX

The radar

The Austin/San Antonio radar (KEWX), 26 km from the middle of the area, began a volume at 07:04 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 27, 2:15 AM CDT	TSTM WND GST 51	Lago Vista, TX	AWOS MEASURED WIND GUST AT RUSTY ALLEN AIRPORT IN LAGO VISTA
Apr 27, 2:19 AM CDT	TSTM WND GST 71	Mansfield Dam, TX	WIND GUST MEASURED AT THE UT LAKE TRAVIS TEST STATION BY A DAVIS WEATHER SYSTEM.
Apr 27, 2:35 AM CDT	TSTM WND DMG	3 Ssw Jollyville, TX	LARGE TEN INCH DIAMETER TREE TOPPLED ONTO FENCING BY WIND GUSTS NEAR RAIN CREEK PKWY AND FLORAL PARK DR
Apr 27, 2:39 AM CDT	TSTM WND GST 67	3 Ene Pflugerville, TX
Apr 27, 2:40 AM CDT	TSTM WND DMG	1 Ne Camp Mabry, TX	THUNDERSTORM WIND GUSTS UPROOTED A LARGE 12 TO 15 INCH DIAMETER TRUNK TREE NEAR FM2222 AND NORTH MOPAC EXPRESSWAY
Apr 27, 2:40 AM CDT	TSTM WND DMG	3 Sse Jollyville, TX	LARGE TEN TO 14 INCH DIAMETER TRUNK SIZE TREE TOPPLED ONTO FENCING AND METAL STORAGE SHED ON WIND RIVER ROAD IN MESA PARK DUE TO HIGH WINDS
Apr 27, 2:45 AM CDT	TSTM WND DMG	Manor, TX	THUNDERSTORM WIND GUSTS WERE STRONG ENOUGH TO SEND A TRAMPOLINE FLYING SO HARD IT LITERALLY STUCK INTO THE EXTERIOR COMPOSITE PANEL SIDING OF A HOME
Apr 27, 2:45 AM CDT	HAIL 0.25	6 Nw New Braunfels, TX
Apr 27, 2:46 AM CDT	TSTM WND GST 54	New Braunfels, TX	NEW BRAUNFEL MUNICIPAL AIRPORT REPORTED 54 MPH WIND GUST AS A LINE OF SHOWERS MOVE ACROSS THE AREA
Apr 27, 3:01 AM CDT	TSTM WND GST 60	N Austin, TX	TREES AND POWER LINES DOWNED AS THUNDERSTORM WIND GUSTS OF APPROX. 60 MPH MOVED ACROSS NORTH AUSTIN.

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 26, 10:21 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 7.1 hours before the alert went out and 255 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: 3361 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 776 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 134 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 7.3

Open this sounding in Storm Lab

The text

As transmitted.

580 
WUUS54 KEWX 270704
SVREWX
TXC021-029-055-091-187-209-453-491-270800-
/O.NEW.KEWX.SV.W.0091.160427T0704Z-160427T0800Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
204 AM CDT WED APR 27 2016

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN BEXAR COUNTY IN SOUTH CENTRAL TEXAS...
  WESTERN BASTROP COUNTY IN SOUTH CENTRAL TEXAS...
  CALDWELL COUNTY IN SOUTH CENTRAL TEXAS...
  COMAL COUNTY IN SOUTH CENTRAL TEXAS...
  TRAVIS COUNTY IN SOUTH CENTRAL TEXAS...
  SOUTHWESTERN WILLIAMSON COUNTY IN SOUTH CENTRAL TEXAS...
  GUADALUPE COUNTY IN SOUTH CENTRAL TEXAS...
  HAYS COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 300 AM CDT

* AT 202 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR SMITHWICK TO NEAR JOHNSON CITY TO KREUTZBERG...
  MOVING EAST AT 60 MPH. THIS LINE OF STORMS WILL CROSS THE I-35 
  CORRIDOR BETWEEN SAN ANTONIO AND ROUND ROCK...INCLUDING AUSTIN. 

  HAZARD...70 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO 
           MOBILE HOMES...ROOFS...AND OUTBUILDINGS. 

* LOCATIONS IMPACTED INCLUDE...
  SAN ANTONIO...AUSTIN...ROUND ROCK...NEW BRAUNFELS...CEDAR PARK...
  PFLUGERVILLE...SAN MARCOS...SEGUIN...UNIVERSAL CITY...LOCKHART...ELGIN...
  BASTROP...LULING...WIMBERLEY...DRIPPING SPRINGS...TANGLEWOOD FOREST...
  ANDERSON MILL...CANYON LAKE DAM...WINDEMERE AND AUSTIN BERGSTROM INT
  AP.

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 3033 9718 2969 9766 2943 9809 2954 9846
      2971 9873 2974 9869 2975 9865 2975 9864
      2991 9845 3002 9829 3063 9803
TIME...MOT...LOC 0702Z 283DEG 51KT 3062 9811 3020 9836 2984 9871 

HAIL...<.75IN
WIND...70MPH
 
$$

CP

3 follow-up statements

097 
WWUS54 KEWX 270722
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
222 AM CDT WED APR 27 2016

TXC021-029-055-091-187-209-453-491-270800-
/O.CON.KEWX.SV.W.0091.000000T0000Z-160427T0800Z/
BEXAR TX-BASTROP TX-CALDWELL TX-COMAL TX-TRAVIS TX-WILLIAMSON TX-
GUADALUPE TX-HAYS TX-
222 AM CDT WED APR 27 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 AM CDT
FOR NORTHEASTERN BEXAR...WESTERN BASTROP...CALDWELL...COMAL...
TRAVIS...SOUTHWESTERN WILLIAMSON...GUADALUPE AND HAYS COUNTIES...

AT 221 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR LEANDER TO NEAR DRIFTWOOD TO NEAR TIMBERWOOD
PARK...MOVING EAST AT 60 MPH. THIS LINE WILL CROSS THE I-35 CORRIDOR
NORTHEAST OF SAN ANTONIO TO AUSTIN AND ROUND ROCK. 

HAZARD...70 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO MOBILE 
         HOMES...ROOFS...AND OUTBUILDINGS. 

LOCATIONS IMPACTED INCLUDE...
SAN ANTONIO...AUSTIN...ROUND ROCK...NEW BRAUNFELS...CEDAR PARK...
PFLUGERVILLE...SAN MARCOS...SEGUIN...UNIVERSAL CITY...LOCKHART...ELGIN...
BASTROP...LULING...WIMBERLEY...DRIPPING SPRINGS...TANGLEWOOD FOREST...
ANDERSON MILL...CANYON LAKE DAM...WINDEMERE AND AUSTIN BERGSTROM INT
AP.

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 3033 9718 2969 9766 2943 9809 2954 9846
      2971 9873 2974 9869 2975 9865 2975 9864
      2991 9845 3002 9829 3063 9803
TIME...MOT...LOC 0721Z 283DEG 53KT 3056 9782 3014 9806 2972 9853 

HAIL...<.75IN
WIND...70MPH
 
$$

CP

047 
WWUS54 KEWX 270745
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
245 AM CDT WED APR 27 2016

TXC021-029-055-091-187-209-453-491-270800-
/O.CON.KEWX.SV.W.0091.000000T0000Z-160427T0800Z/
BEXAR TX-BASTROP TX-CALDWELL TX-COMAL TX-TRAVIS TX-WILLIAMSON TX-
GUADALUPE TX-HAYS TX-
245 AM CDT WED APR 27 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 AM CDT
FOR NORTHEASTERN BEXAR...WESTERN BASTROP...CALDWELL...COMAL...
TRAVIS...SOUTHWESTERN WILLIAMSON...GUADALUPE AND HAYS COUNTIES...

AT 244 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR COUPLAND TO NIEDERWALD TO NEAR NEW BRAUNFELS TO
WINDCREST...MOVING SOUTHEAST AT 55 MPH. WIND GUSTS OF 51 MPH WERE
REPORTED AT RUSTY MILLER LAGO VISTA AIRPORT AND 46 MPH AT AUSTIN
BERGSTROM AND SAN ANTONIO INTERNATIONAL AIRPORTS.  

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
SAN ANTONIO...AUSTIN...ROUND ROCK...NEW BRAUNFELS...CEDAR PARK...
PFLUGERVILLE...SAN MARCOS...SEGUIN...UNIVERSAL CITY...LOCKHART...ELGIN...
BASTROP...LULING...WIMBERLEY...DRIPPING SPRINGS...TANGLEWOOD FOREST...
ANDERSON MILL...CANYON LAKE DAM...WINDEMERE AND AUSTIN BERGSTROM INT
AP.

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 3033 9718 2969 9766 2943 9809 2954 9846
      2971 9873 2974 9869 2975 9865 2975 9864
      2991 9845 3002 9829 3063 9803
TIME...MOT...LOC 0744Z 297DEG 48KT 3043 9743 3002 9774 2973 9808 2952
9837

HAIL...<.75IN
WIND...60MPH
 
$$

CP

353 
WWUS54 KEWX 270802
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
302 AM CDT WED APR 27 2016

TXC021-029-055-091-187-209-453-491-270811-
/O.EXP.KEWX.SV.W.0091.000000T0000Z-160427T0800Z/
BEXAR TX-BASTROP TX-CALDWELL TX-COMAL TX-TRAVIS TX-WILLIAMSON TX-
GUADALUPE TX-HAYS TX-
302 AM CDT WED APR 27 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BEXAR...WESTERN
BASTROP...CALDWELL...COMAL...TRAVIS...SOUTHWESTERN WILLIAMSON...
GUADALUPE AND HAYS COUNTIES HAS EXPIRED...
    
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LIMITS. THEREFORE THE WARNING HAS BEEN ALLOWED TO EXPIRE. HOWEVER...
WIND GUSTS TO 55 MPH AND HEAVY RAIN ARE STILL POSSIBLE WITH THESE
THUNDERSTORMS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 AM CDT FOR
SOUTH CENTRAL TEXAS.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
AUSTIN SAN ANTONIO.

LAT...LON 3033 9718 2969 9766 2943 9809 2954 9846
      2971 9873 2974 9869 2975 9865 2975 9864
      2991 9845 3002 9829 3063 9803
TIME...MOT...LOC 0800Z 283DEG 51KT 3043 9743 3002 9774 2973 9808 2952
9837

$$

CP

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 26, 11:12 PM CDT	Special Weather Statement	EWX	Val Verde	33 min
Apr 26, 11:33 PM CDT	Severe Thunderstorm Warning	EWX	Edwards, Val Verde	72 min
Apr 26, 11:44 PM CDT	Special Weather Statement	EWX	Burnet	46 min
Apr 27, 12:05 AM CDT	Special Weather Statement	EWX	Burnet	40 min
Apr 27, 12:21 AM CDT	Severe Thunderstorm Warning	EWX	Edwards, Gillespie, Kerr, Real, Val Verde	69 min
Apr 27, 12:25 AM CDT	Severe Thunderstorm Warning	EWX	Burnet	50 min
Apr 27, 12:48 AM CDT	Special Weather Statement	EWX	Edwards	42 min
Apr 27, 12:57 AM CDT	Severe Thunderstorm Warning	EWX	Gillespie, Llano	63 min
Apr 27, 1:11 AM CDT	Special Weather Statement	EWX	Williamson	64 min
Apr 27, 1:23 AM CDT	Severe Thunderstorm Warning	EWX	Blanco, Burnet, Gillespie	67 min
Apr 27, 1:34 AM CDT	Special Weather Statement	EWX	Bandera, Kendall, Real	41 min
Apr 27, 1:41 AM CDT	Severe Thunderstorm Warning	EWX	Kendall, Kerr	64 min
Apr 27, 2:11 AM CDT	Special Weather Statement	EWX	Bexar, Medina, Uvalde	64 min
Apr 27, 2:26 AM CDT	Special Weather Statement	EWX	Uvalde	49 min
Apr 27, 2:30 AM CDT	Special Weather Statement	EWX	Williamson	45 min
Apr 27, 3:01 AM CDT	Special Weather Statement	EWX	Atascosa, Bastrop, Bexar, Caldwell, Fayette, Frio and 8 more	59 min
Apr 27, 3:39 AM CDT	Special Weather Statement	EWX	Caldwell	36 min
Apr 27, 3:44 AM CDT	Special Weather Statement	EWX	Medina	31 min
Apr 27, 3:57 AM CDT	Special Weather Statement	EWX	Atascosa, Bastrop, Bexar, Caldwell, Comal, DeWitt and 8 more	63 min
Apr 27, 4:34 AM CDT	Special Weather Statement	EWX	Atascosa	56 min
Apr 27, 4:35 AM CDT	Special Weather Statement	EWX	Guadalupe, Wilson	55 min
Apr 27, 4:43 AM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bexar, Frio, Medina	25 min
Apr 27, 4:53 AM CDT	Special Weather Statement	EWX	Wilson	37 min
Apr 27, 5:04 AM CDT	Special Weather Statement	EWX	Guadalupe	41 min
Apr 27, 5:37 AM CDT	Special Weather Statement	EWX	Atascosa	38 min
Apr 27, 6:19 AM CDT	Special Weather Statement	EWX	Karnes	56 min
Apr 27, 7:15 AM CDT	Special Weather Statement	EWX	Karnes	30 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.