Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 24, NWS Austin/San Antonio, TX

April 17, 2015DeWitt County, Gonzales County, Lavaca County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 17, 2015, 5:14 PM CDT for DeWitt County, Gonzales County, Lavaca County, Texas. It was in force for 61 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: Apr 17, 2015, 5:14 PM CDT (22:14 UTC)
Expired: Apr 17, 2015, 6:15 PM CDT
In force: 61 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties DeWitt County, TX, Gonzales County, TX, Lavaca County, TX

The radar

The Austin/San Antonio radar (KEWX), 109 km from the middle of the area, began a volume at 22:14 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

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 17, 3:30 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 10.2 hours before the alert went out and 184 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: 854 J/kg
Mixed-layer CIN: -117 J/kg
Mixed-layer LCL: 525 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 89 m²/s²
0-3 km storm-relative helicity: 110 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 4.2

Open this sounding in Storm Lab

The text

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

796 
WUUS54 KEWX 172214
SVREWX
TXC123-177-285-172315-
/O.NEW.KEWX.SV.W.0024.150417T2214Z-150417T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
514 PM CDT FRI APR 17 2015

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN DEWITT COUNTY IN SOUTH CENTRAL TEXAS...
  SOUTHEASTERN GONZALES COUNTY IN SOUTH CENTRAL TEXAS...
  LAVACA COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 615 PM CDT

* AT 513 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR GONZALES TO 9 MILES NORTHEAST OF CUERO TO NEAR
  MISSION VALLEY...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...
  GONZALES...CUERO...YOAKUM...HALLETTSVILLE...SHINER...MOULTON...
  THOMASTON...CHEAPSIDE...EZZELL...HOCHHEIM...SUBLIME...SPEAKS...
  SWEET HOME...HENKHAUS...DREYER...MORAVIA...KOERTH...CONCRETE...MONT
  AND TERRYVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

INTENSE THUNDERSTORM LINES CAN PRODUCE BRIEF TORNADOES AND WIDESPREAD
SIGNIFICANT WIND DAMAGE. ALTHOUGH A TORNADO IS NOT IMMEDIATELY
LIKELY...IT IS BEST TO MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF A BUILDING. THESE STORMS MAY CAUSE SERIOUS INJURY AND SIGNIFICANT
PROPERTY DAMAGE.

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 2906 9694 2910 9698 2888 9729 2947 9757
      2962 9715 2963 9686 2961 9684 2958 9684
      2958 9680 2934 9656
TIME...MOT...LOC 2213Z 261DEG 36KT 2945 9742 2915 9715 2890 9716 

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

CP

4 follow-up statements

596 
WWUS54 KEWX 172216
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
516 PM CDT FRI APR 17 2015

TXC123-177-285-172315-
/O.CON.KEWX.SV.W.0024.000000T0000Z-150417T2315Z/
DEWITT TX-GONZALES TX-LAVACA TX-
516 PM CDT FRI APR 17 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR EASTERN DEWITT...SOUTHEASTERN GONZALES AND LAVACA COUNTIES...

AT 515 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 6 MILES SOUTHEAST OF GONZALES TO 6 MILES NORTHWEST OF 
FORDTRAN TO NURSERY...MOVING EAST AT 40 MPH. AN ISOLATED SEVERE 
THUNDERSTORM WAS 10 MILES SOUTHWEST OF SPEAKS...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...
GONZALES...CUERO...YOAKUM...HALLETTSVILLE...SHINER...MOULTON...
THOMASTON...CHEAPSIDE...EZZELL...HOCHHEIM...SUBLIME...SPEAKS...SWEET
HOME...HENKHAUS...DREYER...MORAVIA...KOERTH...CONCRETE...MONT AND
TERRYVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

INTENSE THUNDERSTORM LINES CAN PRODUCE BRIEF TORNADOES AND WIDESPREAD
SIGNIFICANT WIND DAMAGE. ALTHOUGH A TORNADO IS NOT IMMEDIATELY
LIKELY...IT IS BEST TO MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF A BUILDING. THESE STORMS MAY CAUSE SERIOUS INJURY AND SIGNIFICANT
PROPERTY DAMAGE.

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 2906 9694 2910 9698 2888 9729 2947 9757
      2962 9715 2963 9686 2961 9684 2958 9684
      2958 9680 2934 9656
TIME...MOT...LOC 2215Z 261DEG 36KT 2945 9735 2915 9708 2890 9709 

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

CP

752 
WWUS54 KEWX 172243
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
543 PM CDT FRI APR 17 2015

TXC123-172252-
/O.CAN.KEWX.SV.W.0024.000000T0000Z-150417T2315Z/
DEWITT TX-
543 PM CDT FRI APR 17 2015

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN DEWITT COUNTY 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 1000 PM CDT FOR
SOUTH CENTRAL TEXAS.

LAT...LON 2906 9694 2910 9697 2946 9729 2962 9715
      2963 9686 2961 9684 2958 9684 2958 9680
      2934 9656
TIME...MOT...LOC 2242Z 259DEG 39KT 2951 9703 2921 9676 2896 9677 

$$

TXC177-285-172315-
/O.CON.KEWX.SV.W.0024.000000T0000Z-150417T2315Z/
GONZALES TX-LAVACA TX-
543 PM CDT FRI APR 17 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR EAST CENTRAL GONZALES AND LAVACA COUNTIES...

AT 542 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 6 MILES NORTHWEST OF HALLETTSVILLE TO NEAR SPEAKS TO
NEAR INEZ...MOVING EAST AT 45 MPH.

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

SOURCE...RADAR INDICATED. 

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

LOCATIONS IMPACTED INCLUDE...
YOAKUM...HALLETTSVILLE...SHINER...MOULTON...EZZELL...SUBLIME...
SPEAKS...SWEET HOME...WORTHING...HENKHAUS...MOUNT OLIVE...BRESLAU...
MORAVIA...KOERTH...MONT...VSETIN...KOMENSKY...HOPE...WIED AND VIENNA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

INTENSE THUNDERSTORM LINES CAN PRODUCE BRIEF TORNADOES AND WIDESPREAD
SIGNIFICANT WIND DAMAGE. ALTHOUGH A TORNADO IS NOT IMMEDIATELY
LIKELY...IT IS BEST TO MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF A BUILDING. THESE STORMS MAY CAUSE SERIOUS INJURY AND SIGNIFICANT
PROPERTY DAMAGE.

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 2906 9694 2910 9697 2946 9729 2962 9715
      2963 9686 2961 9684 2958 9684 2958 9680
      2934 9656
TIME...MOT...LOC 2242Z 259DEG 39KT 2951 9703 2921 9676 2896 9677 

HAIL...0.75IN
WIND...60MPH
 
$$

CP

340 
WWUS54 KEWX 172256
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
556 PM CDT FRI APR 17 2015

TXC177-172306-
/O.CAN.KEWX.SV.W.0024.000000T0000Z-150417T2315Z/
GONZALES TX-
556 PM CDT FRI APR 17 2015

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL GONZALES COUNTY
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 1000 PM CDT FOR
SOUTH CENTRAL TEXAS.

LAT...LON 2906 9694 2910 9697 2940 9717 2962 9715
      2963 9686 2961 9684 2958 9684 2958 9680
      2934 9656
TIME...MOT...LOC 2256Z 261DEG 36KT 2954 9688 2924 9662 2899 9663 

$$

TXC285-172315-
/O.CON.KEWX.SV.W.0024.000000T0000Z-150417T2315Z/
LAVACA TX-
556 PM CDT FRI APR 17 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR LAVACA COUNTY...

AT 556 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 6 MILES NORTHWEST OF SUBLIME TO 6 MILES EAST OF SPEAKS
TO EDNA...MOVING EAST AT 40 MPH.

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

SOURCE...RADAR INDICATED. 

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

LOCATIONS IMPACTED INCLUDE...
HALLETTSVILLE...SHINER...MOULTON...EZZELL...SUBLIME...SPEAKS...SWEET
HOME...WORTHING...HENKHAUS...MOUNT OLIVE...BRESLAU...MORAVIA...
KOERTH...MONT...VSETIN...KOMENSKY...HOPE...WIED...VIENNA AND WITTING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

INTENSE THUNDERSTORM LINES CAN PRODUCE BRIEF TORNADOES AND WIDESPREAD
SIGNIFICANT WIND DAMAGE. ALTHOUGH A TORNADO IS NOT IMMEDIATELY
LIKELY...IT IS BEST TO MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF A BUILDING. THESE STORMS MAY CAUSE SERIOUS INJURY AND SIGNIFICANT
PROPERTY DAMAGE.

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 2906 9694 2910 9697 2940 9717 2962 9715
      2963 9686 2961 9684 2958 9684 2958 9680
      2934 9656
TIME...MOT...LOC 2256Z 261DEG 36KT 2954 9688 2924 9662 2899 9663 

HAIL...0.75IN
WIND...60MPH
 
$$

CP

517 
WWUS54 KEWX 172315
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
615 PM CDT FRI APR 17 2015

TXC285-172324-
/O.EXP.KEWX.SV.W.0024.000000T0000Z-150417T2315Z/
LAVACA TX-
615 PM CDT FRI APR 17 2015

...THE SEVERE THUNDERSTORM WARNING FOR LAVACA COUNTY WILL EXPIRE AT
615 PM CDT...
    
THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER GUSTY WINDS
ARE STILL POSSIBLE FOR THE NEXT HALF HOUR.

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

LAT...LON 2906 9694 2910 9697 2940 9717 2962 9715
      2963 9686 2961 9684 2958 9684 2958 9680
      2934 9656
TIME...MOT...LOC 2312Z 261DEG 36KT 2954 9688 2924 9662 2899 9663 

$$

CP

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 17, 3:39 PM CDT, 1 hour 35 minutes earlier.

Area forecast discussion, Apr 17, 3:39 PM CDT, 1 hour 35 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
339 PM CDT FRI APR 17 2015

.UPDATE...
TO ISSUE SEVERE THUNDERSTORM WATCH 68. A LINE OF SEVERE
THUNDERSTORMS IS MOVING ACROSS OUR SOUTH CENTRAL COUNTIES. THESE
STORMS WILL MAINTAIN THEIR INTENSITY AS THEY MOVE TO THE EAST AND
WE HAVE ISSUED A SEVERE THUNDERSTORM WATCH FOR DEWITT...
GONZALES...CALDWELL...BASTROP...LEE...FAYETTE...AND LAVACA
COUNTIES UNTIL 10PM.

&&

.PREV DISCUSSION... /ISSUED 318 PM CDT FRI APR 17 2015/

SHORT TERM (TONIGHT THROUGH SATURDAY NIGHT)...
UPPER AIR ANALYSIS THIS MORNING SHOWED A LOW OVER THE FOUR CORNERS
REGION WITH SOUTHWESTERLY FLOW ACROSS TEXAS. A 95 KT JET STREAK AT
250MB WAS NOSING INTO SOUTH TEXAS. AT THE SURFACE A WEAK COLD
FRONT STRETCHED FROM NEAR BIG SPRING TO PANDALE AND THEN BACK TO
NEAR THE BIG BEND. OVER TO THE EAST THERE WAS A STATIONARY FRONT
OVER THE COASTAL PLAINS FROM NEAR HOUSTON TO VICTORIA. WINDS
ACROSS OUR CWA WERE FROM THE EAST TO SOUTHEAST AND THE LOW LEVELS
ARE VERY MOIST WITH DEW POINT TEMPERATURES IN THE MID 60S TO LOW
70S. AREA SOUNDINGS THIS MORNING SHOWED AN UNCAPPED ATMOSPHERE
WITH 2000-3000 J/KG CAPE WITH 30 TO 40 KTS OF VERTICAL WIND SHEAR.
CONVECTION WILL BE ONGOING IN THE FIRST PERIOD. A SEVERE
THUNDERSTORM WATCH IS IN EFFECT UNTIL 7PM FOR THE COUNTIES FROM
WILLIAMSON TO KARNES AND WEST. WITH MODEST SHEAR AND HIGH CAPE
STORMS MAY FORM INTO A COUPLE OF CLUSTERS ONE ALONG THE COLD
FRONT IN THE NORTH AND ANOTHER ALONG THE WARM FRONT IN THE SOUTH. OVER
THE EASTERN COUNTIES A FLASH FLOOD WATCH REMAINS IN EFFECT. THIS
AREA RECEIVED 3 TO 5 INCHES OF RAIN THURSDAY AND STORMS WILL MOVE
ALONG THE WARM FRONT PRODUCING MORE LOCALLY HEAVY RAIN. ANOTHER 1
TO 2 INCHES WITH ISOLATED AMOUNTS OF 4 ARE POSSIBLE. EXPECTING
CONVECTION TO WEAKEN OVERNIGHT...BUT THUNDERSTORMS ARE STILL
POSSIBLE. THE UPPER LOW WILL SLOWLY MOVE TO THE EAST AND OPEN TO A
WAVE. INSTABILITY AND SHEAR WILL STILL BE FAVORABLE FOR SEVERE
THUNDERSTORMS. SO THE QUESTION TOMORROW MAY BE WHETHER OR NOT
STORMS FORM. IF THEY DO...THERE WILL LIKELY BE SOME SEVERE. SPC
HAS US IN A SLIGHT RISK. BEST CHANCES FOR STORMS WILL BE FROM THE
WEST OFF THE MOUNTAINS OF MEXICO. MOST LIKELY THREAT WILL BE LARGE
HAIL AND DAMAGING WINDS.

LONG TERM (SUNDAY THROUGH FRIDAY)...
THE UPPER TROUGH WILL MOVE TO THE EAST SUNDAY. A COLD FRONT WILL
MOVE THROUGH OUR CWA. UPPER FLOW ACROSS TEXAS WILL BECOME ZONAL
FOR SUNDAY AND MONDAY. A WEAK RIDGE WILL MOVE IN FROM THE WEST
TUESDAY AND BUILD VERY SLOWLY THROUGH THE REST OF THE PERIOD.
RETURN FLOW FROM THE GULF WILL BEGIN TUESDAY AND THIS MOISTURE
WILL GIVE US CHANCES FOR SHOWERS AND THUNDERSTORMS EACH DAY
THROUGH THE END OF THE PERIOD.

&&

.PRELIMINARY POINT TEMPS/POPS...
AUSTIN CAMP MABRY              65  79  63  87  57 /  70  40  30  -   10
AUSTIN BERGSTROM INTL AIRPORT  64  79  61  87  55 /  70  40  30  -   10
NEW BRAUNFELS MUNI AIRPORT     65  79  61  87  57 /  70  40  30  -   10
BURNET MUNI AIRPORT            62  78  59  86  54 /  70  40  20  -   -
DEL RIO INTL AIRPORT           65  83  59  89  59 /  40  20  10   0  -
GEORGETOWN MUNI AIRPORT        64  78  62  86  54 /  70  40  20  -   10
HONDO MUNI AIRPORT             64  80  61  87  57 /  60  40  20  -   -
SAN MARCOS MUNI AIRPORT        64  78  61  86  57 /  80  40  30  -   10
LA GRANGE - FAYETTE REGIONAL   66  78  63  85  59 /  80  50  30  10  10
SAN ANTONIO INTL AIRPORT       66  80  63  87  59 /  70  40  20  -   10
STINSON MUNI AIRPORT           66  80  63  86  60 /  70  40  20  -   10

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH UNTIL 1 AM CDT SATURDAY FOR THE FOLLOWING
COUNTIES: BASTROP...CALDWELL...DE WITT...FAYETTE...GONZALES...
LAVACA...LEE.

&&

MESOSCALE/AVIATION...18
SYNOPTIC/GRIDS...05
PUBLIC SERVICE/DATA COLLECTION...33

Hazardous weather outlook, Apr 17, 10:13 AM CDT, 7 hours 1 minute before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1013 AM CDT FRI APR 17 2015

TXZ171>173-183>194-202>209-217>225-228-181200-
LLANO-BURNET-WILLIAMSON-VAL VERDE-EDWARDS-REAL-KERR-BANDERA-
GILLESPIE-KENDALL-BLANCO-HAYS-TRAVIS-BASTROP-LEE-KINNEY-UVALDE-
MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL-FAYETTE-MAVERICK-ZAVALA-
FRIO-ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA-DIMMIT-
1013 AM CDT FRI APR 17 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...TODAY AND TONIGHT.
THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS MOST OF
SOUTH CENTRAL TEXAS TODAY...WITH A SLIGHT RISK WEST OF A DEL RIO
TO ROCKSPRINGS LINE. THE MAIN CONCERNS WILL BE LARGE HAIL AND
DAMAGING WIND GUSTS...BUT AN ISOLATED TORNADO IS ALSO POSSIBLE.

IN ADDITION...THESE STORMS MAY ALSO PRODUCE LOCALLY HEAVY
DOWNPOURS OF 1 TO 3 INCHES WITH ISOLATED TOTALS OVER 4 INCHES.
HEAVY RAIN FELL YESTERDAY EAST OF A GIDDINGS TO LOCKHART TO CUERO
LINE AND A FLASH FLOOD WATCH IS IN EFFECT FOR THESE LOCATIONS
BETWEEN 1 PM AND 1 AM.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

A SLIGHT TO ENHANCED RISK OF SEVERE THUNDERSTORMS MAY OCCUR AGAIN
ON SATURDAY ACROSS MUCH OF SOUTH CENTRAL TEXAS. THE MAIN CONCERNS
WILL BE LARGE HAIL AND DAMAGING WIND GUSTS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TODAY AND AGAIN ON SATURDAY.

In the hours before

Special weather statement, Apr 17, 3:56 PM CDT, 1 hour 18 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
356 PM CDT FRI APR 17 2015

TXZ187-189-204>206-172200-
KENDALL TX-BEXAR TX-MEDINA TX-BANDERA TX-COMAL TX-
356 PM CDT FRI APR 17 2015

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL COMAL...NORTHEASTERN
MEDINA...SOUTHERN KENDALL...SOUTHEASTERN BANDERA AND NORTHWESTERN
BEXAR COUNTIES UNTIL 500 PM CDT...

AT 355 PM CDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 6 MILES SOUTHWEST OF NELSON
CITY TO NEAR LAKEHILLS...AND MOVING EAST AT 25 MPH.

HALF INCH HAIL...WINDS IN EXCESS OF 40 MPH AND HEAVY RAIN WILL BE
POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
SAN ANTONIO...BOERNE...HELOTES...FAIR OAKS RANCH...BULVERDE...
HOLLYWOOD PARK...SHAVANO PARK...PIPE CREEK...GUADALUPE RIVER STATE
PARK...LEON SPRINGS...CROSS MOUNTAIN...TIMBERWOOD PARK...LAKEHILLS...
BERGHEIM...THE DOMINION...KREUTZBERG...BANDERA FALLS...CASTLE
HILLS...HILL COUNTRY VILLAGE AND GREY FOREST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM CDT FOR
SOUTH CENTRAL TEXAS.

LAT...LON 2996 9845 2950 9841 2954 9895 2976 9897
TIME...MOT...LOC 2055Z 270DEG 21KT 2981 9887 2960 9888

CP

Local storm report, Apr 17, 4:06 PM CDT, 1 hour 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
406 PM CDT FRI APR 17 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0255 PM     HEAVY RAIN       5 W POTEET              29.04N  98.66W
04/17/2015  M2.25 INCH       ATASCOSA           TX   COCORAHS

            RAINFALL OVER A 70 MINUTE PERIOD

&&

EVENT NUMBER EWX1500173

CVP

Special weather statement, Apr 17, 4:19 PM CDT, 55 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
419 PM CDT FRI APR 17 2015

TXZ202-172200-
KINNEY TX-
419 PM CDT FRI APR 17 2015

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL KINNEY COUNTY UNTIL 500
PM CDT...

AT 418 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7
MILES SOUTH OF STANDART...OR 11 MILES NORTHWEST OF SPOFFORD...MOVING
NORTHEAST AT 25 MPH.

NICKEL SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
BRACKETTVILLE...ALAMO VILLAGE AND STANDART.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM CDT FOR
SOUTH CENTRAL TEXAS.

LAT...LON 2912 10053 2920 10072 2953 10058 2940 10031
TIME...MOT...LOC 2118Z 207DEG 20KT 2924 10058

MCO

Local storm report, Apr 17, 4:33 PM CDT, 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
433 PM CDT FRI APR 17 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0430 PM     FLASH FLOOD      FLORESVILLE             29.14N  98.16W
04/17/2015                   WILSON             TX   LAW ENFORCEMENT

            NUMEROUS LOW WATER CROSSINGS FLOODED IN THE FLORESVILLE
            AREA...HIGH WATER RESCUE OCCURRED IN FLORESVILLE.

&&

EVENT NUMBER EWX1500174

CVP

Local storm report, Apr 17, 4:34 PM CDT, 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
434 PM CDT FRI APR 17 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0430 PM     TSTM WND DMG     FLORESVILLE             29.14N  98.16W
04/17/2015                   WILSON             TX   EMERGENCY MNGR

            5 TO 6 INCH DIAMETER TREE LIMB BLOWN DOWN

&&

EVENT NUMBER EWX1500176

CVP

Special weather statement, Apr 17, 4:40 PM CDT, 34 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
440 PM CDT FRI APR 17 2015

TXZ189-190-206-172245-
KENDALL TX-BLANCO TX-COMAL TX-
440 PM CDT FRI APR 17 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL COMAL...
NORTHEASTERN KENDALL AND SOUTHWESTERN BLANCO COUNTIES UNTIL 545 PM
CDT...

AT 439 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
KENDALIA...OR 10 MILES SOUTHWEST OF BLANCO...MOVING EAST AT 10 MPH.

DIME SIZE HAIL...WINDS IN EXCESS OF 40 MPH AND VERY HEAVY RAINS WILL
BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
BLANCO...CANYON LAKE...KENDALIA AND TWIN SISTERS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM CDT FOR
SOUTH CENTRAL TEXAS.

LAT...LON 2988 9862 3005 9867 3014 9832 2994 9828
TIME...MOT...LOC 2139Z 251DEG 9KT 2999 9856

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, 7:35 PM CDT	Special Weather Statement	EWX	Fayette	40 min
Apr 16, 8:21 PM CDT	Areal Flood Advisory	EWX	Bastrop	114 min
Apr 16, 8:49 PM CDT	Special Weather Statement	EWX	Bastrop	41 min
Apr 16, 9:29 PM CDT	Special Weather Statement	EWX	Lee	46 min
Apr 16, 10:20 PM CDT	Areal Flood Advisory	EWX	Bastrop, Lee	55 min
Apr 17, 4:36 AM CDT	Flash Flood Watch	EWX	Bastrop, Caldwell, DeWitt, Fayette, Gonzales, Lavaca and 1 more	20 hr
Apr 17, 9:27 AM CDT	Special Weather Statement	EWX	Edwards	48 min
Apr 17, 9:51 AM CDT	Areal Flood Advisory	EWX	Edwards	3 hr
Apr 17, 9:54 AM CDT	Special Weather Statement	EWX	Edwards	36 min
Apr 17, 10:18 AM CDT	Special Weather Statement	EWX	Edwards	42 min
Apr 17, 10:51 AM CDT	Special Weather Statement	EWX	Edwards	39 min
Apr 17, 11:19 AM CDT	Special Weather Statement	EWX	Val Verde	41 min
Apr 17, 11:29 AM CDT	Special Weather Statement	EWX	Edwards	31 min
Apr 17, 11:32 AM CDT	Special Weather Statement	EWX	Kimble	43 min
Apr 17, 11:37 AM CDT	Special Weather Statement	EWX	Dimmit	38 min
Apr 17, 11:43 AM CDT	Areal Flood Advisory	EWX	Edwards	3 hr
Apr 17, 12:08 PM CDT	Severe Thunderstorm Warning	EWX	Edwards, Kerr, Real	37 min
Apr 17, 12:15 PM CDT	Severe Thunderstorm Warning	EWX	Edwards	45 min
Apr 17, 12:21 PM CDT	Areal Flood Advisory	EWX	Edwards, Kerr, Real	3 hr
Apr 17, 12:34 PM CDT	Flash Flood Warning	EWX	Edwards, Real	3 hr
Apr 17, 12:35 PM CDT	Areal Flood Advisory	EWX	Dimmit	3 hr
Apr 17, 12:42 PM CDT	Special Weather Statement	EWX	Kinney	48 min
Apr 17, 12:47 PM CDT	Special Weather Statement	EWX	Kerr	58 min
Apr 17, 12:53 PM CDT	Special Weather Statement	EWX	Maverick	37 min
Apr 17, 12:56 PM CDT	Severe Thunderstorm Warning	EWX	Kinney, Maverick, Uvalde	34 min
Apr 17, 12:59 PM CDT	Special Weather Statement	EWX	Dimmit	46 min
Apr 17, 1:03 PM CDT	Special Weather Statement	EWX	Real	42 min
Apr 17, 1:16 PM CDT	Areal Flood Advisory	EWX	Kinney	3 hr
Apr 17, 1:23 PM CDT	Special Weather Statement	EWX	Dimmit	52 min
Apr 17, 1:27 PM CDT	Severe Thunderstorm Warning	EWX	Kinney, Uvalde	43 min
Apr 17, 1:28 PM CDT	Severe Thunderstorm Warning	EWX	Real, Uvalde	43 min
Apr 17, 2:02 PM CDT	Areal Flood Advisory	EWX	Real	118 min
Apr 17, 2:21 PM CDT	Special Weather Statement	EWX	Kinney	39 min
Apr 17, 2:31 PM CDT	Areal Flood Advisory	EWX	Bandera, Kerr	3 hr
Apr 17, 2:46 PM CDT	Areal Flood Advisory	EWX	Atascosa, Frio	3 hr
Apr 17, 2:57 PM CDT	Special Weather Statement	EWX	Atascosa	48 min
Apr 17, 3:08 PM CDT	Flash Flood Warning	EWX	Bandera, Kerr	3 hr
Apr 17, 3:15 PM CDT	Special Weather Statement	EWX	Atascosa, Wilson	45 min
Apr 17, 3:19 PM CDT	Special Weather Statement	EWX	Kinney	41 min
Apr 17, 3:30 PM CDT	Special Weather Statement	EWX	Kinney	45 min
Apr 17, 3:39 PM CDT	Severe Thunderstorm Warning	EWX	Kinney	51 min
Apr 17, 3:45 PM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Karnes, Wilson	45 min
Apr 17, 3:46 PM CDT	Severe Thunderstorm Warning	EWX	Kinney, Maverick	29 min
Apr 17, 3:56 PM CDT	Special Weather Statement	EWX	Kendall	64 min
Apr 17, 4:01 PM CDT	Areal Flood Advisory	EWX	DeWitt, Gonzales, Guadalupe, Karnes, Lavaca, Wilson	3 hr
Apr 17, 4:06 PM CDT	Areal Flood Advisory	EWX	Bandera, Bexar, Blanco, Comal, Kendall, Kerr	3 hr
Apr 17, 4:14 PM CDT	Severe Thunderstorm Warning	EWX	Edwards, Kinney	31 min
Apr 17, 4:19 PM CDT	Special Weather Statement	EWX	Kinney	41 min
Apr 17, 4:20 PM CDT	Severe Thunderstorm Warning	EWX	DeWitt, Gonzales, Karnes, Lavaca, Wilson	55 min
Apr 17, 4:36 PM CDT	Areal Flood Advisory	EWX	Kinney	3 hr
Apr 17, 4:40 PM CDT	Special Weather Statement	EWX	Kendall	65 min
Apr 17, 5:43 PM CDT	Special Weather Statement	EWX	Dimmit	47 min
Apr 17, 5:54 PM CDT	Severe Thunderstorm Warning	EWX	Dimmit, Maverick, Zavala	36 min
Apr 17, 6:06 PM CDT	Areal Flood Advisory	EWX	Bastrop, Blanco, Burnet, Caldwell, Comal, Guadalupe and 4 more	3 hr
Apr 17, 6:14 PM CDT	Special Weather Statement	EWX	Fayette	31 min
Apr 17, 6:44 PM CDT	Special Weather Statement	EWX	Karnes	31 min
Apr 17, 6:46 PM CDT	Special Weather Statement	EWX	Frio	44 min
Apr 17, 6:53 PM CDT	Special Weather Statement	EWX	DeWitt	22 min
Apr 17, 6:57 PM CDT	Severe Thunderstorm Warning	EWX	Dimmit, Frio, Zavala	37 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.