Alert archive / Texas / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 73, NWS Austin/San Antonio, TX

May 9, 20144 counties in Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 9, 2014, 1:09 PM CDT for 4 counties in Texas. It was in force for 51 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: May 9, 2014, 1:09 PM CDT (18:09 UTC)
Expired: May 9, 2014, 2:00 PM CDT
In force: 51 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon

Counties Frio County, TX, Medina County, TX, Uvalde County, TX, Zavala County, TX

The radar

The Laughlin AFB radar (KDFX), 94 km from the middle of the area, began a volume at 18:12 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
May 9, 1:30 PM CDT	TSTM WND DMG	Sabinal, TX	TOP HALF OF A LARGE HEALTHY PECAN TREE BLOWN DOWN BY THUNDERSTORM WIND GUSTS
May 9, 1:35 PM CDT	HAIL 0.25	Sabinal, TX

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 21 minutes after it went out.

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
May 9, 10:39 AM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Del Rio, TX (KDLF), launched 12:00Z, 6.2 hours before the alert went out and 149 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: 2819 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 727 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 40 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 2.3

Open this sounding in Storm Lab

The text

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

320 
WUUS54 KEWX 091809
SVREWX
TXC163-325-463-507-091900-
/O.NEW.KEWX.SV.W.0073.140509T1809Z-140509T1900Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
109 PM CDT FRI MAY 9 2014

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN FRIO COUNTY...
  SOUTHWESTERN MEDINA COUNTY...
  SOUTHEASTERN UVALDE COUNTY...
  NORTHEASTERN ZAVALA COUNTY...

* UNTIL 200 PM CDT.

* AT 107 PM CDT...NWS METEOROLOGISTS HAVE DETECTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
  WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 15 MILES
  SOUTHWEST OF SABINAL...OR 10 MILES SOUTHEAST OF UVALDE...AND MOVING
  EAST AT 45 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE D'HANIS...YANCEY...HONDO AND
  MOORE.

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 700 PM CDT FRIDAY
EVENING FOR SOUTH CENTRAL TEXAS.

&&

LAT...LON 2944 9907 2903 9898 2904 9969 2925 9973
TIME...MOT...LOC 1809Z 261DEG 39KT 2915 9960

$$

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 May 9, 12:51 PM CDT, 18 minutes earlier.

Area forecast discussion, May 9, 12:51 PM CDT, 18 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1251 PM CDT FRI MAY 9 2014

.AVIATION...
/18Z TAFS/
A LINE OF STORMS WEST OF INTERSTATE 35 WILL MOVE ACROSS THE I-35
TERMINALS BETWEEN 18Z TO 21Z THIS AFTERNOON WITH MVFR VBSYS AND
THUNDERSTORM WIND GUSTS BETWEEN 30 TO 35 KNOTS. STORMS WILL LINGER
AROUND THROUGH THE EVENING HOURS ACROSS THE AREA WITH LITTLE
IMPACT ACROSS THE I-35 SITES AFTER 8 OR 9 PM. SOME OF THE HIRES
SOLUTIONS PUSH CONVECTION BACK TO THE WEST LATER THIS EVENING AND
AFFECTING KDRT AROUND 03Z SATURDAY. AROUND MIDNIGHT TONIGHT/OVERNIGHT...
CIGS WILL LOWER TO MVFR/IFR ALL SITES EXCEPT KDRT. KDRT COULD SEE MVFR
AROUND DAWN AND VFR AROUND 15Z SATURDAY. WINDS WILL BE FROM THE
EAST AND SOUTHEAST AT ABOUT 10 KNOTS OR SO THROUGH TONIGHT AND
DECREASING TO ABOUT 5 KNOTS OVERNIGHT AND COMING BACK UP SATURDAY
AFTERNOON TO ABOUT 10 TO 15 KNOTS.

&&

.PRELIMINARY POINT TEMPS/POPS...
AUSTIN CAMP MABRY              71  90  73  91  73 /  20  -   -   -   20
AUSTIN BERGSTROM INTL AIRPORT  70  90  72  90  72 /  30  -   -   -   20
NEW BRAUNFELS MUNI AIRPORT     70  91  72  91  72 /  30  -   -   -   20
BURNET MUNI AIRPORT            69  88  71  89  71 /  20  -   -   -   20
DEL RIO INTL AIRPORT           72  97  74  97  74 /  10  -   -   -   20
GEORGETOWN MUNI AIRPORT        69  87  72  89  72 /  20  -   -   -   20
HONDO MUNI AIRPORT             70  94  73  95  73 /  30  -   -   -   20
SAN MARCOS MUNI AIRPORT        70  90  72  90  72 /  30  -   -   -   20
LA GRANGE - FAYETTE REGIONAL   72  88  73  89  73 /  30  10  10  10  10
SAN ANTONIO INTL AIRPORT       71  93  73  93  73 /  30  -   -   -   20
STINSON MUNI AIRPORT           71  93  73  94  73 /  30  -   -   -   20

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

MESOSCALE/AVIATION...05
SYNOPTIC/GRIDS...24
PUBLIC SERVICE/DATA COLLECTION...30

Hazardous weather outlook, May 9, 5:37 AM CDT, 7 hours 32 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
537 AM CDT FRI MAY 9 2014

TXZ171>173-183>194-202>209-217>225-228-101100-
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-
537 AM CDT FRI MAY 9 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...TODAY AND TONIGHT...

ANOTHER ROUND OF STRONG TO SEVERE THUNDERSTORMS IS EXPECTED THIS
AFTERNOON FOR THE HILL COUNTRY, AND LATER THIS EVENING FOR POINTS
FURTHER SOUTH AND EAST. STRONG WINDS AND LARGE HAIL WILL BE THE
PRIMARY THREATS.

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TODAY AND TONIGHT.

In the hours before

Local storm report, May 9, 12:43 PM CDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1243 PM CDT FRI MAY 09 2014

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

1230 PM     HAIL             6 SW BOERNE             29.75N  98.82W
05/09/2014  E0.50 INCH       KENDALL            TX   COCORAHS

            ALSO VERY HEAVY RAIN WITH WIND GUSTS TO 35 MPH

&&

EVENT NUMBER EWX1400397

SBS

Local storm report, May 9, 12:49 PM CDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1249 PM CDT FRI MAY 09 2014

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

1230 PM     HAIL             1 S LEON SPRINGS        29.65N  98.63W
05/09/2014  E1.50 INCH       BEXAR              TX   LAW ENFORCEMENT

            ALSO...WIND GUSTS TO E55 MPH

&&

EVENT NUMBER EWX1400398

SBS

Special weather statement, May 9, 12:51 PM CDT, 18 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1251 PM CDT FRI MAY 9 2014

TXZ203-218-091830-
UVALDE-ZAVALA-
1251 PM CDT FRI MAY 9 2014

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL ZAVALA AND EXTREME
SOUTHERN UVALDE COUNTIES UNTIL 130 PM CDT...

AT 1248 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 8 MILES SOUTH OF LA PRYOR...MOVING NORTHEAST AT
15 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  BATESVILLE...

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.

LAT...LON 2910 9960 2889 9945 2871 9984 2886 9995
TIME...MOT...LOC 1752Z 238DEG 14KT 2884 9981

Local storm report, May 9, 12:54 PM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1254 PM CDT FRI MAY 09 2014

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

1230 PM     HAIL             1 ESE BERGHEIM          29.81N  98.56W
05/09/2014  E0.50 INCH       COMAL              TX   COCORAHS

            AVERAGE HAIL SIZE REPORTED AS 0.375

&&

EVENT NUMBER EWX1400399

SBS

Local storm report, May 9, 12:55 PM CDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1255 PM CDT FRI MAY 09 2014

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

1250 PM     HAIL             UVALDE                  29.22N  99.78W
05/09/2014  E0.25 INCH       UVALDE             TX   LAW ENFORCEMENT

            HAIL BEING HORIZONTALLY WIND DRIVEN

&&

EVENT NUMBER EWX1400400

SBS

Special weather statement, May 9, 12:57 PM CDT, 12 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1257 PM CDT FRI MAY 9 2014

TXZ220>224-091845-
ATASCOSA-DE WITT-GONZALES-KARNES-WILSON-
1257 PM CDT FRI MAY 9 2014

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN ATASCOSA...KARNES...
SOUTHEASTERN WILSON...SOUTHWESTERN GONZALES AND SOUTHWESTERN DEWITT
COUNTIES UNTIL 145 PM CDT...

AT 1250 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
SEVERAL STRONG THUNDERSTORMS ACROSS THE SOUTHEAST COUNTIES MOVING
NORTHEAST AT 10 MPH.

HAIL UP TO ONE-HALF INCH IN DIAMETER IS EXPECTED WITH THIS STORM...
ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  KARNES CITY...
  KENEDY...
  KOSCIUSKO...
  YORKTOWN...
  FALLS CITY...
  CESTOHOWA...
  RUNGE...
  NORDHEIM...
  GILLETT...
  NIXON...

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.

THE HEAVY RAIN MAY FLOOD LOW LYING AREAS SUCH AS DITCHES...LOW WATER
CROSSINGS AND UNDERPASSES. DO NOT DRIVE YOUR VEHICLE ACROSS FLOODED
ROADWAYS.

LAT...LON 2877 9810 2873 9816 2882 9827 2928 9776
      2899 9738 2870 9792 2869 9799 2869 9801
TIME...MOT...LOC 1755Z 242DEG 10KT 2877 9810

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 7:07 PM CDT	Severe Thunderstorm Warning	EWX	Burnet	23 min
May 8, 7:32 PM CDT	Areal Flood Advisory	EWX	Burnet	118 min
May 8, 7:44 PM CDT	Special Weather Statement	EWX	Travis	46 min
May 8, 8:18 PM CDT	Special Weather Statement	EWX	Williamson	27 min
May 8, 8:55 PM CDT	Special Weather Statement	EWX	Williamson	35 min
May 9, 2:18 AM CDT	Special Weather Statement	EWX	Val Verde	42 min
May 9, 3:34 AM CDT	Special Weather Statement	EWX	Sutton	41 min
May 9, 7:24 AM CDT	Special Weather Statement	EWX	Val Verde	51 min
May 9, 7:52 AM CDT	Special Weather Statement	EWX	Edwards	23 min
May 9, 8:17 AM CDT	Special Weather Statement	EWX	Edwards	43 min
May 9, 8:19 AM CDT	Special Weather Statement	EWX	Edwards	26 min
May 9, 9:05 AM CDT	Special Weather Statement	EWX	Real	40 min
May 9, 9:08 AM CDT	Severe Thunderstorm Warning	EWX	Edwards, Real	52 min
May 9, 9:30 AM CDT	Special Weather Statement	EWX	Val Verde	45 min
May 9, 10:04 AM CDT	Severe Thunderstorm Warning	EWX	Bandera, Medina, Real, Uvalde	41 min
May 9, 10:41 AM CDT	Severe Thunderstorm Warning	EWX	Bandera, Medina, Uvalde	34 min
May 9, 11:16 AM CDT	Special Weather Statement	EWX	Bandera, Kendall	44 min
May 9, 11:21 AM CDT	Special Weather Statement	EWX	Maverick	39 min
May 9, 11:59 AM CDT	Special Weather Statement	EWX	Maverick	46 min
May 9, 12:11 PM CDT	Severe Thunderstorm Warning	EWX	Bexar, Blanco, Comal, Kendall	49 min
May 9, 12:14 PM CDT	Special Weather Statement	EWX	Bexar	46 min
May 9, 12:27 PM CDT	Severe Thunderstorm Warning	EWX	Kinney, Maverick, Uvalde, Zavala	48 min
May 9, 12:45 PM CDT	Severe Thunderstorm Warning	EWX	Bexar, Comal, Guadalupe	45 min
May 9, 12:51 PM CDT	Special Weather Statement	EWX	Zavala	39 min
May 9, 12:57 PM CDT	Special Weather Statement	EWX	Karnes	48 min
May 9, 12:58 PM CDT	Severe Thunderstorm Warning	EWX	Blanco, Comal, Hays, Kendall	47 min
May 9, 1:00 PM CDT	Severe Thunderstorm Warning	EWX	Bexar, Comal, Guadalupe, Hays	45 min
May 9, 1:34 PM CDT	Areal Flood Advisory	EWX	Karnes	116 min
May 9, 1:41 PM CDT	Special Weather Statement	EWX	DeWitt, Gonzales, Karnes, Wilson	49 min
May 9, 1:45 PM CDT	Severe Thunderstorm Warning	EWX	Caldwell, Comal, Hays, Travis	45 min
May 9, 1:46 PM CDT	Severe Thunderstorm Warning	EWX	Caldwell	44 min
May 9, 2:02 PM CDT	Special Weather Statement	EWX	Frio, Medina	43 min
May 9, 2:17 PM CDT	Special Weather Statement	EWX	Bastrop, Caldwell, Gonzales, Wilson	43 min
May 9, 2:43 PM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Frio	47 min
May 9, 2:49 PM CDT	Special Weather Statement	EWX	Bexar, Wilson	41 min
May 9, 2:53 PM CDT	Special Weather Statement	EWX	Atascosa, DeWitt, Fayette, Gonzales, Karnes, Lavaca and 1 more	52 min
May 9, 3:06 PM CDT	Flash Flood Warning	EWX	Karnes	4 hr
May 9, 3:18 PM CDT	Severe Thunderstorm Warning	EWX	Bexar, Comal, Guadalupe, Wilson	42 min
May 9, 3:28 PM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Karnes	47 min
May 9, 3:30 PM CDT	Severe Thunderstorm Warning	EWX	Fayette, Gonzales, Lavaca	60 min
May 9, 3:54 PM CDT	Areal Flood Advisory	EWX	Fayette, Gonzales, Lavaca	2 hr

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.