1 flash flood, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 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 6, 1:41 PM CST, 4 hours 49 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 240 PM CDT FRI AUG 6 2004 .DISCUSSION... THIS AFTERNOON SCATTERED SHOWERS AND THUNDERSTORMS HAVE DEVELOPED FROM LA GRANGE TO SAN ANTONIO AND ROCKSPRINGS. THIS CONVECTION WAS OCCURRING AHEAD OF THE FRONTAL BOUNDARY IN AN AREA OF MODERATE TO HIGH CAPE AND LOW CIN...AS DEPICTED BY LAPS. STEERING WINDS ALOFT WILL RESULT IN THIS ACTIVITY MOVING TO THE SOUTH AND SOUTHWEST FOR THE REMAINDER OF THIS AFTERNOON INTO THIS EVENING. THE CONVECTION WILL END AROUND MIDNIGHT WITH THE LOSS OF DAYTIME HEATING. THE SLIGHTLY DRIER AIRMASS CURRENTLY LOCATED OVER NORTHEAST TEXAS WILL FILTER INTO THE NORTHEAST HALF OF THE CWFA TONIGHT AND INTO SATURDAY. THIS WILL RESULT IN TEMPS A COUPLE OF DEGREES COOLER IN THAT PART OF THE CWFA TONIGHT AND SATURDAY. CONVECTION WILL BE MORE ISOLATED ON SATURDAY AFTERNOON...MAINLY OCCURRING OVER THE WESTERN HALF OF THE CWFA WITH THE SLIGHTLY DRIER AIRMASS IN THE LOWER LEVELS RESIDING OVER THE EASTERN HALF. BY SUNDAY WITH FRONTAL BOUNDARY WILL BE HISTORY AS THE GULF LOW LEVEL FLOW STARTS TO BECOME RE-ESTABLISHED. AFTERNOON SHOWERS AND THUNDERSTORMS WILL BE LIMITED TO THE SOUTHEAST COUNTIES...WHERE SEA- BREEZE INDUCED CONVECTION WILL BE POSSIBLE. THE UPPER LEVEL HIGH OVER THE DESERT SOUTHWEST WILL BUILD EASTWARD AGAIN EARLY NEXT WEEK ALLOWING A WARMING TREND TO RESUME ALONG WITH DRY WEATHER. THE UPPER RIDGE WILL BEGIN TO RETREAT WEDNESDAY OR THURSDAY AS THE EASTERN U.S. TROF DEEPENS ONCE AGAIN. THUS ANOTHER WEAK FRONTAL BOUNDARY WILL TRY TO MOVE IN THE NORTHEAST PART OF THE CWFA ON WEDNESDAY OR THURSDAY. THIS WILL TAKE THE EDGE OFF THE HEAT ONCE AGAIN WITH AN INCREASE IN POPS FOR THE EASTERN HALF OF THE CWFA. && .PRELIMINARY POINT TEMPS/POPS... AUSTIN CAMP MABRY 72 92 73 94 / 20 20 10 0 AUSTIN BERGSTROM INTL AIRPORT 71 93 68 95 / 20 10 10 0 DEL RIO INTL AIRPORT 76 96 75 98 / 30 30 20 0 SAN ANTONIO INTL AIRPORT 73 93 73 94 / 30 20 10 0 && .EWX WATCHES/WARNINGS/ADVISORIES...NONE. && 13/04
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 523 AM CDT FRI AUG 6 2004 TXZ171>173-183>194-202>209-217>225-228-071100- ATASCOSA-BANDERA-BASTROP-BEXAR-BLANCO-BURNET-CALDWELL-COMAL-DE WITT- DIMMIT-EDWARDS-FAYETTE-FRIO-GILLESPIE-GONZALES-GUADALUPE-HAYS-KARNES- KENDALL-KERR-KINNEY-LAVACA-LEE-LLANO-MAVERICK-MEDINA-REAL-TRAVIS- UVALDE-VAL VERDE-WILLIAMSON-WILSON-ZAVALA- 523 AM CDT FRI AUG 6 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE...TODAY AND TONIGHT... THERE IS A CHANCE OF SHOWERS OR THUNDERSTORMS TODAY THROUGH THIS EVENING...AS A WEAK COOL FRONT MOVES ACROSS SOUTH CENTRAL TEXAS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY... THERE IS A CHANCE OF SHOWERS OR THUNDERSTORMS SATURDAY AND SATURDAY EVENING. ISOLATED AFTERNOON AND EARLY EVENING SHOWERS OR THUNDERSTORMS ARE POSSIBLE SUNDAY THROUGH THURSDAY. HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
The Austin/San Antonio radar (KEWX), 71 km away, was scanning. The volume nearest the first event began at 00:27 UTC.
1 flash flood. Local standard time, as filed.
Thunderstorms over western Kendall County produced general 1 to 2 inch totals. Highest amounts were near 3 inches between Comfort and Boerne, where several roads, including FM1376 and FM473 were closed due to the flooding.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2004Every state in 2004This day in weather historyWarnings in Texas, August 2004
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: 5420518.