Thunderstorms formed along a stationary front. Some of these storms produced heavy rain that led to flash flooding.
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.
Thunderstorms formed along a stationary front. Some of these storms produced heavy rain that led to flash flooding.
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, 11:12 PM CST, 2 hours 39 minutes earlier.
Area Forecast Discussion National Weather Service Austin/San Antonio TX 1212 AM CDT SUN AUG 14 2016 .AVIATION DISCUSSION...FOR 06Z TAF PERIOD... VFR CIGS CURRENTLY AT TAF ISSUANCE FOR ALL TERMINALS WITH TSRA PRESENT WELL SOUTHEAST AND SOUTH OF KSAT/KSSF. EXPECTING DEVELOPMENT OVERNIGHT IN GENERAL BUT IMPACTS TO TERMINALS IS QUESTIONABLE. CARRIED VCSH FOR THE MORNING HOURS WHEN COVERAGE IS EXPECTED TO INCREASE. ALSO MVFR/IFR LEVEL CIGS WILL BE POSSIBLE BY DAYBREAK BEFORE RECOVERING BACK TO VFR CIGS BY LATE MORNING. && .PREV DISCUSSION... /ISSUED 930 PM CDT SAT AUG 13 2016/ DISCUSSION... Although, showers and thunderstorms have waned over South Central Texas this evening, a surface front and numerous other boundaries along with a mid to upper level shear axis will lift a very moist airmass with PWS greater than 2 inches (satellite derived as high as 2.9) to regenerate showers and thunderstorms overnight into the morning hours. Have maintained likely POPs. Locally heavy rainfall remains possible. Only changes were to re-establish temperature, dewpoint, and wind trends for the remainder of tonight. PREV DISCUSSION... /ISSUED 729 PM CDT SAT AUG 13 2016/ AVIATION... /00Z TAFS/ A weak cold front has passed through the area as a series of outflow boundaries...with VAD wind profiles confirming the northerly flow at low levels and aloft. High derived pwat values over 2 inches remain extended deep into the Hill Country and Central Tx to suggest unstable mid levels and good chances for regeneration of showers an thunderstorms overnight into daybreak Sunday. Since a large cluster of storms has produce a new round of cool outflows this afternoon/early this evening...timing for future rains and cloud lowerings will be difficult to pinpoint and were therefore generalized. Regarding cloud lowerings, a typical weak front scenario with high atmospheric moisture content was envisioned over the overly optimistic cigs of the GFS guidance and the overly pessimistic cigs/vsbys of the NAM model. The resulting 00z TAFs slightly favors the NAM, with low cigs maintained above LIFR and vsbys held up by light northerly breezes. Morning cloudiness and fog forecasts could be revised lower and later into the day Sunday assuming new areas of rain develop near TAF sites overnight. PREV DISCUSSION... /ISSUED 251 PM CDT SAT AUG 13 2016/ SHORT TERM (Tonight through Sunday Night)... Scattered to numerous showers and thunderstorms are expected across South-Central Texas through Sunday evening. If they do develop, strongest thunderstorms will be capable of producing localized heavy downpours as precipitable water values range between 2.0 to 2.40 inches through the period. At this point, widespread flooding is not expected, however, some areas may experience minor flash flooding, especially along area roadways, underpasses and poor drainage locations. Due to the complexity of these systems, it is difficult to pinpoint the most affect areas for this evening through Sunday morning. However, based on HiRes solutions and current satellite and radar loops, those areas could end up being the Edwards Plateau/western Hill Country or northern Hill Country and areas east of I-35. The wet pattern comes as a result of different outflow boundaries moving across the area in addition of the proximity of a cold front and a mid-level trough shear axis. The combination of these features will keep chances of rain through Sunday night. Sunday's high will be in the mid to upper 80s across most of the area due to cloud cover and wet grounds. LONG TERM (Monday through Saturday)... Chances of rain will persist across South-Central Texas through at least the middle of next week. An upper level low pressure system across the Southern Plains and plenty moisture from the surface to mid-levels are expected to maintain showers and thunderstorm activity for much of the extended forecast period. By Thursday, a weak upper level ridge builds across the area limiting rain chances to parts of Central Texas. However, rain chances could back to the area next weekend as another cold front moves over Central Texas. && .PRELIMINARY POINT TEMPS/POPS... Austin Camp Mabry 88 73 85 73 88 / 60 50 60 40 50 Austin Bergstrom Intl Airport 87 73 85 72 88 / 60 50 60 40 50 New Braunfels Muni Airport 86 72 84 72 88 / 70 50 60 40 50 Burnet Muni Airport 88 72 84 70 87 / 50 40 50 30 40 Del Rio Intl Airport 91 74 87 72 88 / 50 30 40 40 40 Georgetown Muni Airport 88 73 84 72 87 / 50 50 60 40 50 Hondo Muni Airport 87 73 85 72 88 / 60 50 60 40 50 San Marcos Muni Airport 86 72 84 72 88 / 70 50 60 40 50 La Grange - Fayette Regional 86 75 86 74 89 / 70 50 60 40 50 San Antonio Intl Airport 86 73 85 73 88 / 70 50 60 40 50 Stinson Muni Airport 86 74 86 74 89 / 70 50 60 40 50 && .EWX WATCHES/WARNINGS/ADVISORIES... None. && Mesoscale/Aviation...TB3 Synoptic/Grids...Runyen
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 510 AM CDT SAT AUG 13 2016 TXZ171>173-183>194-202>209-217>225-228-141015- 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- 510 AM CDT SAT AUG 13 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE...TODAY AND TONIGHT. ISOLATED TO SCATTERED THUNDERSTORMS WILL BE POSSIBLE ACROSS MUCH OF SOUTH CENTRAL TEXAS THIS AFTERNOON AND EVENING. LOCALLY HEAVY RAINFALL WILL BE POSSIBLE. WIND GUSTS UP TO 40 MPH ARE ALSO POSSIBLE. HEAT INDICES OF 105 TO 108 WILL ALSO BE POSSIBLE THIS AFTERNOON...MAINLY EAST OF THE INTERSTATE 35 CORRIDOR. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE FOR THE NEXT SEVERAL DAYS. SOME OF THESE STORMS COULD PRODUCE LOCALLY HEAVY RAINFALL ESPECIALLY SUNDAY THROUGH TUESDAY. WHILE CONDITIONS HAVE BEEN DRY...HEAVY RAINFALL AMOUNTS COULD LEAD TO SOME MINOR FLOODING IN SPOTS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED ALTHOUGH IF ANY MINOR FLOODING IS OBSERVED PLEASE REPORT THAT TO THE NWS THROUGH PHONE...WEB...OR SOCIAL MEDIA. TB3
The Austin/San Antonio radar (KEWX), 92 km away, was scanning. The volume nearest the first event began at 07:52 UTC.
1 flash flood. Local standard time, as filed.
Thunderstorms produced heavy rain that caused flash flooding closing FM81 at FM627 and County Road 334 between Runge and Helena.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2016Every state in 2016This day in weather historyWarnings in Texas, August 2016
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: 655708.