Thunderstorms associated with a persistent upper level low produced heavy rain and flash flooding in the morning of July 30.
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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 morning of July 30.
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 30, 5:28 AM CST, 2 hours 2 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 628 AM CDT MON JUL 30 2007 .AVIATION... CONDITIONS ARE CURRENTLY MVFR...BUT WILL MIX WITH IFR CIGS/VSBYS THROUGH 14-15Z BEFORE GOING VFR ACROSS THE AREA. THUNDERSTORMS ARE FORECAST AT THE KDRT TERMINAL BETWEEN 12-16Z...THEN AGAIN LATE IN THE TAF PERIOD. MVFR CIGS WILL RETURN TO TERMINALS BETWEEN 06-09Z TUESDAY MORNING. && .PREV DISCUSSION... /ISSUED 411 AM CDT MON JUL 30 2007/ DISCUSSION... WILL LET THE FFA EXPIRE AT 7 AM AS THE POTENTIAL FOR EARLY MORNING HEAVY RAINS CONTINUES, BUT HAS BEEN FOCUSED MAINLY WEST OF THE RIO GRANDE. GFS AND NAM SHOW GOOD AGREEMENT ON WARMING MID-LEVEL TEMPS COINCIDING WITH DECREASING MID-LEVEL MOISTURE ACROSS THE WESTERN COUNTIES. MOISTURE LEVELS WILL STILL REMAIN HIGH AND THE THREAT FOR ISOLATED HEAVY RAINS WILL CONTINUE TODAY, BUT FLASH FLOODING WOULD BE MORE DEPENDENT ON TRAINING DUE TO INCREASED CELL SPEEDS IN A DEEPER SOUTHERLY FLOW. THUS WILL KEEP IN SOME GOOD RAIN CHANCES HILL COUNTRY AND WESTERN COUNTIES WITH A MENTION OF LOCALLY HEAVY RAINFALL. MOST MODEL DATA SHOWS A RETURN TO MORE SEASONAL CONDITIONS TUESDAY INTO THURSDAY WITH TYPICAL 20-30 POPS EACH DAY, INCREASING TO MOSTLY 30 POPS LATE THURSDAY INTO FRIDAY WHEN MODELS SHOW ANOTHER MID-LEVEL IMPULSE DROPPING SW FROM NE TX. THIS IMPULSE LOOKS LESS SIGNIFICANT THAN THE PREVIOUS SHORTWAVES THAT PRODUCED THE REPETITIVE FLOOD EVENTS IN JULY. MODELS ARE TRENDING TOWARD THE BUILDING AN UPPER RIDGE OVER THE GULF STATES OVER THE WEEKEND WHICH SHOULD FURTHER INCREASE STABILITY. HOWEVER, THIS PATTERN COULD BE MORE FAVORABLE FOR TROPICAL DEVELOPMENT HEADING INTO NEXT WEEK. && .PRELIMINARY POINT TEMPS/POPS... AUSTIN CAMP MABRY 92 74 93 75 93 / 40 20 20 20 20 AUSTIN BERGSTROM INTL AIRPORT 91 72 93 72 93 / 40 20 20 20 20 DEL RIO INTL AIRPORT 86 74 89 75 92 / 60 40 30 30 20 SAN ANTONIO INTL AIRPORT 91 75 92 75 92 / 40 20 10 10 20 && .EWX WATCHES/WARNINGS/ADVISORIES... NONE. && 18/11/CB/DC
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 828 AM CDT MON JUL 30 2007 TXZ171>173-183>194-202>209-217>225-228-311100- 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- 828 AM CDT MON JUL 30 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE...TODAY AND TONIGHT... SHOWERS AND THUNDERSTORMS ARE LIKELY TODAY ACROSS THE RIO GRANDE VALLEY AND EDWARDS PLATEAU. LOCALLY HEAVY RAINFALL IS POSSIBLE...LEADING TO FLASH FLOODING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 711 AM CDT MON JUL 30 2007 TXZ183>185-202-203-217-218-228-301315- VAL VERDE-EDWARDS-REAL-KINNEY-UVALDE-MAVERICK-ZAVALA-DIMMIT- INCLUDING THE CITIES OF...DEL RIO...ROCKSPRINGS...LEAKEY... BRACKETTVILLE...UVALDE...EAGLE PASS...CRYSTAL CITY... CARRIZO SPRINGS 711 AM CDT MON JUL 30 2007 ...FLASH FLOOD WATCH ALLOWED TO EXPIRE OVER WESTERN PORTIONS OF SOUTH CENTRAL TEXAS... ...ISOLATED HEAVY RAINFALL AMOUNTS OF 1 TO 2 INCHES REMAIN POSSIBLE LATE THIS MORNING... AN UPPER LEVEL DISTURBANCE WILL SHIFT WEST INTO FAR WEST TEXAS AND NORTHERN MEXICO TODAY. A BRIEF ROUND OF LOCALLY HEAVY RAINS OF 1 TO 2 INCHES WILL BE POSSIBLE THROUGH 11 AM OVER THE WESTERN HILL COUNTRY AND SOUTHERN EDWARDS PLATEAU. THESE MORNING RAINS COULD RESULT IN A MINOR FLOODING THREAT ACROSS AREAS GENERALLY WEST OF A LEAKEY TO EAGLE PASS LINE. THE CHANCE OF RAIN IS EXPECTED TO DECREASE LATER TODAY...BUT ISOLATED MAINLY DAYTIME RAIN EVENTS COULD RESULT IN LOCALIZED FLOODING FOR MUCH OF THIS WEEK. NEARLY SATURATED SOILS COULD MEAN THAT ANY SIGNIFICANT DEVELOPING RAINS COULD WARRANT A NEW FLASH FLOOD WATCH. A SHIFT TOWARD A DRIER WEATHER PATTERN IS EXPECTED THIS WEEKEND. ADDITIONAL STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
716 AM CDT MON JUL 30 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0710 AM HEAVY RAIN REAGAN WELLS 29.55N 99.80W
07/30/2007 M1.00 INCH UVALDE TX TRAINED SPOTTER
1.00 INCHES IN THE PAST 20 MINUTES.
&&
DCThe Laughlin AFB radar (KDFX), 30 km away, was scanning. The volume nearest the first event began at 13:31 UTC.
2 flash flood. Local standard time, as filed.
Thunderstorms formed in the morning around the Brackettville area and spread northwestward through the morning producing from 3 to 4 inches of rain in central and western Kinney County. The highest totals were 6 inches near Brackettville. Flash flooding closed FM3199, FM2804, and FM1572.
The thunderstorms from Kinney County spread northwestward into Val Verde County by mid morning and covered an area from Del Rio to Comstock. A general 2 to 3 inch rain along this part of the Rio Grande River, with flash flooding closing SH163, FM2523 and several roads in the city of Del Rio through late morning.
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: 49632, 49634.