A weak cold front moved through Central Texas and produced isolated thunderstorms. One of these storms produced damaging wind gusts in Williamson County.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS EWX wrote it up.
A weak cold front moved through Central Texas and produced isolated thunderstorms. One of these storms produced damaging wind gusts in Williamson County.
The local office's own words before the first event, 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 the first event at Aug 13, 1:51 PM CST, 2 hours 24 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 251 PM CDT MON AUG 13 2012 .DISCUSSION... THE NWLY MID LEVEL FLOW HAS PUSHED A FRONTAL BOUNDARY INTO THE NRN PART OF THE REGION THAT WILL BE A FOCUS FOR CONVECTION THE REMAINDER OF TODAY. HIGH BASED CONVECTION DEVELOPING OVER THE CENTRAL/SRN HILL COUNTRY TO ALONG THE ESCARPMENT AND EDWARDS PLATEAU THIS AFTERNOON. THIS CONVECTION WAS FORMING NEAR A SURFACE FRONTAL BOUNDARY THAT WILL CONTINUE TO DRIFT SOUTHWARD INTO THE EVENING HOURS WITH THE POTENTIAL FOR DAMAGING DOWNBURST WINDS. ALTHOUGH GENERALLY ISOLATED COVERAGE EXPECTED...CLUSTERS OF STORMS COULD RESULT IN AREAS OF SCATTERED COVERAGE...ESPECIALLY BEFORE SUNSET OVER THE WESTERN AREAS WHERE LOW LEVEL CONVERGENCE IS A BIT STRONGER. OTHERWISE THE UPPER RIDGE WILL REESTABLISHES ITSELF THROUGH THE MID WEEK...ALTHOUGH THE RIDGE WILL NOT BE AS STRONG AS LAST WEEK. THERE CONTINUES TO BE GOOD INDICATIONS OF MUCH IMPROVING RAIN CHANCES LATE THIS WEEK AND ESPECIALLY INTO THE WEEKEND/EARLY NEXT WEEK. A REDEVELOPING NWLY FLOW AND WEAKENING UPPER RIDGE OVER TX WILL BRING ANOTHER FRONTAL BOUNDARY INTO S CENTRAL TX OVER THE WEEKEND. THIS BOUNDARY COULD STALL AND BECOME NEARLY STATIONARY OVER THE AREA AND PROVIDE A FOCUS FOR ORGANIZED CONVECTION. THE BIG QUESTION WILL BE HOW MUCH MOISTURE WILL INTERACT WITH THE FRONTAL BOUNDARY. THE GFS SHOWS CONTINUED SHALLOW MOISTURE AND SPOTTY RAINS SIMILAR TODAY AND LAST WEEK. WHILE THE CMC AND ECMWF MODELS INDICATE DEEPER MOISTURE AND MORE ORGANIZED CONVECTION NEAR THE LINGERING SURFACE BOUNDARY OVER THE WEEKEND. WILL CONTINUE WITH SLIGHT TO LOW CHANCE POPS FOR FRIDAY-MONDAY... ALTHOUGH POPS COULD BE SIGNIFICANTLY HIGHER WITH A DEEPER MOISTURE FIELD. && .PRELIMINARY POINT TEMPS/POPS... AUSTIN CAMP MABRY 78 101 76 101 76 / 10 - - - - AUSTIN BERGSTROM INTL AIRPORT 75 100 73 99 73 / 10 - - - - NEW BRAUNFELS MUNI AIRPORT 75 99 72 98 72 / 10 - - - - BURNET MUNI AIRPORT 78 101 75 100 75 / 10 - - - - DEL RIO INTL AIRPORT 81 103 80 103 79 / 10 - - - - GEORGETOWN MUNI AIRPORT 77 100 75 99 76 / 10 - - - - HONDO MUNI AIRPORT 76 100 72 100 72 / - - - - - SAN MARCOS MUNI AIRPORT 76 100 73 100 73 / 10 - - - - LA GRANGE - FAYETTE REGIONAL 78 98 74 97 75 / 10 - - - - SAN ANTONIO INTL AIRPORT 78 100 77 99 77 / 10 - - - - STINSON MUNI AIRPORT 76 102 75 101 74 / 10 - - - - && .EWX WATCHES/WARNINGS/ADVISORIES... NONE. && MESOSCALE/AVIATION...10 SYNOPTIC/GRIDS...01 PUBLIC SERVICE/DATA COLLECTION...32
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 433 AM CDT MON AUG 13 2012 TXZ171>173-183>194-202>209-217>225-228-141100- 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- 433 AM CDT MON AUG 13 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE...TODAY AND TONIGHT... ISOLATED THUNDERSTORMS ARE POSSIBLE LATE THIS AFTERNOON INTO THIS EVENING MAINLY ALONG AND NORTH OF A LINE FROM DEL RIO TO SAN ANTONIO TO LA GRANGE. THUNDERSTORMS WILL HAVE THE POTENTIAL TO PRODUCE DAMAGING WIND GUSTS OF 40 TO 60 MPH. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY... ELEVATED FIRE WEATHER CONDITIONS ARE EXPECTED EACH AFTERNOON AND EVENING TUESDAY THROUGH THURSDAY MAINLY OVER THE WESTERN AREAS OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY. AFTERNOON RELATIVE HUMIDITIES WILL RANGE BETWEEN 25 AND 30 PERCENT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 304 PM CDT MON AUG 13 2012 TXZ184-132045- EDWARDS- 304 PM CDT MON AUG 13 2012 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN EDWARDS COUNTY UNTIL 345 PM CDT... AT 301 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A STRONG THUNDERSTORM 6 MILES NORTHWEST OF VANCE...OR 12 MILES SOUTHEAST OF ROCKSPRINGS...MOVING SOUTH AT 10 MPH. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... MAINLY RURAL AREAS OF CENTRAL EDWARDS COUNTY ALONG AND WEST OF HIGHWAY 55. IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 357 PM CDT MON AUG 13 2012 TXZ171-172-132145- BURNET-LLANO- 357 PM CDT MON AUG 13 2012 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN BURNET AND SOUTHEASTERN LLANO COUNTIES UNTIL 445 PM CDT... AT 351 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A STRONG THUNDERSTORM NEAR BURNET...MOVING SOUTHWEST AT 5 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... KINGSLAND... MARBLE FALLS... INKS LAKE STATE PARK... GRANITE SHOALS... MEADOWLAKES... HORSESHOE BAY... GAINESVILLE... SUNRISE BEACH VILLAGE... COTTONWOOD SHORES... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 430 PM CDT MON AUG 13 2012 TXZ183>185-187-202-203-132245- BANDERA-EDWARDS-KINNEY-REAL-UVALDE-VAL VERDE- 430 PM CDT MON AUG 13 2012 ...SIGNIFICANT WEATHER ADVISORY FOR WESTERN BANDERA...VAL VERDE... UVALDE...SOUTHERN REAL...KINNEY AND SOUTHERN EDWARDS COUNTIES UNTIL 545 PM CDT... AT 430 PM CDT...NATIONAL WEATHER SERVICE RADAR SHOWED AN AREA OF THUNDERSTORMS FROM NORTH OF DEL RIO TO NORTH OF ALAMO VILLAGE TO SOUTHWEST OF UTOPIA...MOVING SOUTH AT 20 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER...WIND GUSTS OF 45 TO 50 MPH... AND FREQUENT DANGEROUS LIGHTNING ARE POSSIBLE WITH THESE THUNDERSTORMS. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... BRACKETTVILLE... SPOFFORD... DEL RIO... CLINE... BLEWETT... DABNEY... ALAMO VILLAGE... ANACACHO... STANDART... AMANDA... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 433 PM CDT MON AUG 13 2012 TXZ189-132215- KENDALL- 433 PM CDT MON AUG 13 2012 ...SIGNIFICANT WEATHER ADVISORY FOR KENDALL COUNTY UNTIL 515 PM CDT... AT 426 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A STRONG THUNDERSTORM NEAR SISTERDALE...OR 13 MILES NORTH OF BOERNE... MOVING SOUTH AT 10 MPH. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... SISTERDALE... WARING... WELFARE... KREUTZBERG... WALNUT GROVE... NELSON CITY... CROWN... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 437 PM CDT MON AUG 13 2012 TXZ172-173-190>192-132245- BLANCO-BURNET-HAYS-TRAVIS-WILLIAMSON- 437 PM CDT MON AUG 13 2012 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN BLANCO...CENTRAL BURNET...WILLIAMSON...TRAVIS AND NORTHERN HAYS COUNTIES UNTIL 545 PM CDT... AT 435 PM CDT...NATIONAL WEATHER SERVICE RADAR SHOWED AN AREA OF THUNDERSTORMS FROM NORTH OF GEORGETOWN TO NORTH OF LOGO VISTA TO NEAR MARBLE FALLS...MOVING SOUTH AND SOUTHEAST AT 25 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER...WIND GUSTS OF 45 TO 50 MPH AND FREQUENT DANGEROUS LIGHTNING ARE POSSIBLE WITH THESE THUNDERSTORMS. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... WINDEMERE... CEDAR PARK... PFLUGERVILLE... ANDERSON MILL... MARBLE FALLS... DRIPPING SPRINGS... AUSTIN... TANGLEWOOD FOREST... AUSTIN BERGSTROM INT AP... SMITHWICK... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 506 PM CDT MON AUG 13 2012 TXZ186-187-132300- BANDERA-KERR- 506 PM CDT MON AUG 13 2012 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL BANDERA AND SOUTHEASTERN KERR COUNTIES UNTIL 600 PM CDT... AT 505 PM CDT...NATIONAL WEATHER SERVICE RADAR SHOWED AN AREA OF THUNDERSTORMS FROM SOUTHWEST OF COMFORT TO NEAR CAMP VERDE TO SOUTHEAST OF MEDINA...MOVING SOUTH AT 25 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER...WIND GUSTS OF 45 TO 50 MPH... AND FREQUENT DANGEROUS LIGHTNING ARE POSSIBLE WITH THESE THUNDERSTORMS. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... BANDERA... MEDINA... BANDERA FALLS... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING.
The Ft Hood radar (KGRK), 30 km away, was scanning. The volume nearest the first event began at 22:16 UTC.
1 thunderstorm wind. Local standard time, as filed.
A thunderstorm produced wind gusts estimated at 40 mph that blew down some large tree limbs.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2012Every state in 2012This day in weather historyWarnings in Texas, August 2012
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 398123.