Thunderstorms associated with a persistent upper level low produced heavy rain and flash flooding in the evening of July 29.
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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 associated with a persistent upper level low produced heavy rain and flash flooding in the evening of July 29.
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 Jul 29, 7:33 PM CST, 27 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 833 PM CDT SUN JUL 29 2007 .UPDATE... THE BIGGEST CHANGE ON THE UPDATE IS TO EXTEND THE FLASH FLOOD WATCH THRU MONDAY MORNING FOR OUR WESTERN COUNTIES. THIS EVENING THE UPPER LOW WAS CENTERED SOUTHWEST OF EL PASO DRIFTING SOUTHWARD. THIS WILL ALLOW FOR WEAK DIFFLUENCE ALOFT TO CONTINUE ACROSS SOUTH TEXAS OVERNIGHT. THE 00Z SOUNDINGS AT DRT AND CRP ALSO HAD PWS OF 2 INCHES AND WERE NOT CAPPED. THUS ANY WEAK VORT MAX EMBEDDED WITHIN THE MID/UPPER CIRCULATION COULD SET OFF ANOTHER ROUND OF NOCTURNAL CONVECTION. THE GREATEST RISK FOR ADDITIONAL HEAVY RAINFALL AND FLASH FLOODING WILL BE ACROSS DIMMIT...EDWARDS...KINNEY...MAVERICK... REAL...UVALDE...VAL VERDE AND ZAVALA COUNTIES. A FULL SUITE OF PRODUCTS INCLUDING THE NEW FLASH FLOOD WATCH WILL BE ISSUED AT 9 PM CDT. && .PREV DISCUSSION... /ISSUED 650 PM CDT SUN JUL 29 2007/ AVIATION... ISOLD TO WIDELY SCT SHRA/TSRA WILL CONTINUE UNTIL LATE EVENING MOST AREAS AND NEAR TAF SITES. SCT SHRA/TSRA WILL REDEVELOP MAINLY ACROSS THE RIO GRANDE AND NEAR DRT LATER TONIGHT INTO MONDAY MORNING. SCT SHRA/TSRA WILL REDEVELOP ACROSS ALL AREAS AND NEAR TAF SITES LATE MONDAY MORNING AND AFTERNOON. SKIES WILL BE MOSTLY VFR, EXCEPT FOR AREAS OF MVFR/IFR CIGS BETWEEN 06Z AND 18Z AS WELL IN AND NEAR SHRA/TSRA. LOCAL MVFR/IFR VSBYS ARE PSBL IN SHRA/TSRA. WINDS WILL MOSTLY BE S TO SE AT LESS THAN 10 KTS, HOWEVER GUSTS TO 30 KTS ARE PSBL NEAR SHRA/TSRA. && PREV DISCUSSION... /ISSUED 242 PM CDT SUN JUL 29 2007/ DISCUSSION... THE UPPER LEVEL LOW HAS BEGUN TO TAKE A MORE SOUTHERLY TURN AS IT DRIFTS ACROSS NORTHERN MEXICO. THE CONVECTIVE ACTIVITY ACROSS THE EASTERN HALF OF SOUTH CENTRAL TEXAS IS INFLUENCED HEAVILY BY DIURNAL HEATING...SO WILL SEE SHOWERS AND THUNDERSTORMS DISSIPATE ACROSS THIS REGION SHORTLY AFTER SUNSET. THE HEAVIEST OF THE RAINFALL ACROSS THE RIO GRANDE PLAINS HAS DIMINISHED...HOWEVER...DUE TO THE CLOSER PROXIMITY TO THE UPPER LEVEL LOW...THIS REGION CAN EXPECT ONGOING REDEVELOPMENT OF SHOWERS AND THUNDERSTORMS THROUGH TONIGHT AND INTO MONDAY MORNING. THE FLASH FLOOD WATCH WILL PROBABLY NEED TO BE EXTENDED...MOST LIKELY FOR THE WESTERN HALF OF THE CWA. THE HEAVY RAIN THREAT WILL CONTINUE THROUGH MONDAY AFTERNOON...BUT WILL GENERALLY BE ACROSS THE FAR WESTERN PORTIONS OF SOUTH CENTRAL TEXAS AND THE WESTERN HILL COUNTRY AS THE UPPER LOW CONTINUES TO TREK SOUTHWESTWARD. HOWEVER...DUE TO CONTINUING MOISTURE-RICH ATMOSPHERE ACROSS THE REGION...ANY STORMS WHICH DEVELOP WILL BE EFFICIENT RAIN PRODUCERS. DRIER CONDITIONS...AND SOME SUNNY SKIES...ARE EXPECTED DURING THE MIDDLE OF THE WEEK AS AN UPPER RIDGE BUILDS INTO SOUTH CENTRAL TEXAS. TEMPERATURES WILL QUICKLY REBOUND TO WITHIN A FEW DEGREES OF TEXAS-STYLE EARLY AUGUST NORMALS. ANOTHER WET WEATHER PATTERN COULD RETURN AS EARLY AS THURSDAY AS SOME MODELS ARE INDICATING AN UPPER LOW DEVELOPING TO OUR NORTH WHILE OTHERS CONTINUE THE DRIER TREND. FOR THE TIME BEING...HAVE GENERALLY GONE WITH NEAR NORMAL TEMPERATURES AND CLIMATOLOGY POPS OF 10-30 PERCENT DURING THE AFTERNOON HOURS AND DECREASING OVERNIGHT FOR THE END OF THE WEEK AND INTO NEXT WEEKEND. && .PRELIMINARY POINT TEMPS/POPS... AUSTIN CAMP MABRY 74 93 76 94 76 / 40 40 10 20 10 AUSTIN BERGSTROM INTL AIRPORT 73 90 73 95 73 / 40 40 10 20 10 DEL RIO INTL AIRPORT 73 91 76 93 77 / 60 50 20 20 20 SAN ANTONIO INTL AIRPORT 74 88 76 92 77 / 40 40 10 20 10 && .EWX WATCHES/WARNINGS/ADVISORIES... FLASH FLOOD WATCH UNTIL 9 PM CDT THIS EVENING FOR THE FOLLOWING COUNTIES:ATASCOSA...BANDERA...BASTROP...BEXAR...BLANCO...BURNET... CALDWELL...COMAL...DE WITT...FAYETTE...FRIO...GILLESPIE... GONZALES...GUADALUPE...HAYS...KARNES...KENDALL...KERR...LAVACA... LEE...LLANO...MEDINA...TRAVIS...WILLIAMSON...WILSON. FLASH FLOOD WATCH UNTIL 7 AM CDT MONDAY FOR THE FOLLOWING COUNTIES: DIMMIT...EDWARDS...KINNEY...MAVERICK...REAL...UVALDE...VAL VERDE... ZAVALA. && 13/04
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 627 AM CDT SUN JUL 29 2007 TXZ171>173-183>194-202>209-217>225-228-301100- 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- 627 AM CDT SUN JUL 29 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE...TODAY AND TONIGHT... A FLASH FLOOD WATCH REMAINS IN EFFECT. LOCALLY HEAVY RAINFALL CAN BE EXPECTED TODAY AND TONIGHT AS AN UPPER LEVEL DISTURBANCE CONTINUES OVER SOUTH CENTRAL TEXAS. RAINFALL AMOUNTS OF 1 TO 2 INCHES WILL BE COMMON...WITH ISOLATED 4 TO 6 INCH RAINFALL AMOUNTS POSSIBLE. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY... LOCALLY HEAVY RAINFALL REMAINS POSSIBLE ACROSS SOUTH CENTRAL TEXAS MONDAY. OTHERWISE...A POTENTIAL FOR MAINLY DAYTIME SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH THE NEXT SEVERAL DAYS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
The Laughlin AFB radar (KDFX), 84 km away, was scanning. The volume nearest the first event began at 02:01 UTC.
1 flash flood. Local standard time, as filed.
Thunderstorms formed just east of El Indio in the late afternoon and dropped between 2 and 3 inches of rain in the area through the early evening. Flash flooding closed FM2644 through the evening period.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2007Every state in 2007This day in weather historyWarnings in Texas, July 2007
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: 49631.