2 flash flood, as filed by the National Weather Service.
Every event with a place to put it; 2 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 30, 7:42 PM CST, 4 hours 48 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 842 PM CDT MON AUG 30 2004 .DISCUSSION... ISOLD STORMS CONTG ALONG A WEAK WESTWARD MOVING BOUNDARY FROM SOUTH OF SAT TO HDO TO NEAR ROCKSPRINGS...AND CONTG NW-WARD INTO THE TSTM COMPLEX IN W TEXAS THIS EVENING. THERE COULD BE SOME LINGERING CONVECTION CONTG PAST MIDNIGHT OVER THE WESTERN CWA NEAR THE BOUNDARY AND MCS OUTFLOW...SO WILL LEAVE LOW POPS IN OVERNIGHT. OTHERWISE REST OF FORECAST LOOKS GOOD AND NOT EXPECTING TO MAKE ANY OTHER SIGNIFICANT CHANGES. && .PREV DISCUSSION... THIS AFTERNOON SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WERE OCCURRING OVER DEEP SOUTH TEXAS...IN AN AREA OF HIGH PWS...WHILE ISOLATED TO WIDELY SCATTERED CONVECTION WAS DEVELOPING FROM THE WESTERN HILL COUNTRY NORTHWARD TO THE CONCHO VALLEY. AFTERNOON HEATING...RESIDUAL MOISTURE AND AN APPROACHING S/W WAS ENOUGH TO DESTABILIZE THE ATMOSPHERE OVER THE CWFA THIS AFTERNOON. ISOLATED CONVECTION WILL CONTINUE ACROSS THE WESTERN HALF OF THE CWFA THIS EVENING ENDING AROUND MIDNIGHT WITH THE LOSS OF DAYTIME HEATING. ANOTHER S/W UPSTREAM IN NEW MEXICO WILL MOVE TOWARDS THE RIO GRANDE PLAINS ON TUESDAY. BOTH THE ETA AND GFS PICK UP ON THIS FEATURE AND GENERATE SOME QPF ACROSS OUR WESTERN COUNTIES. THUS WILL PLACE SLIGHT CHANCE POPS WEST FOR TUESDAY AFTERNOON AND EVENING. SOUTH CENTRAL TEXAS WILL REMAIN ON THE EASTERN PERIPHERY OF THE UPPER RIDGE CENTERED OVER ARIZONA/NEW MEXICO TUESDAY AND WEDNESDAY. THE UPPER RIDGE BREAKS DOWN AND GETS SHUNTED SOUTH ON THURSDAY AS A STRONG UPPER TROF MOVES ONSHORE OVER THE PACIFIC NORTHWEST. RAIN CHANCES THURSDAY AND FRIDAY WILL BE CONFINED TO THE EAST AND SOUTHEAST COUNTIES ASSOCIATED WITH THE SEA-BREEZE. THE GFSLR IS DEPICTING THE NEXT COLD FRONT TO IMPACT THE CWFA AROUND THE MIDDLE OF NEXT WEEK. MILD NIGHTS AND WARM AFTERNOONS WILL CONTINUE FOR TUESDAY AND WEDNESDAY AS THE WEAK SFC RIDGE KEEPS GULF MOISTURE AT BAY. THE GULF FLOW REGIME WILL RETURN ON THURSDAY AND CONTINUE INTO THE WEEKEND AS THE SFC RIDGE SLIDES EASTWARD. THIS WILL RESULT IN OVERNIGHT LOWS RETURNING TO SEASONAL NORMS ALONG WITH INCREASING HUMIDITY LEVELS. && .PRELIMINARY POINT TEMPS/POPS... AUSTIN CAMP MABRY 69 93 66 93 / 5 0 0 5 AUSTIN BERGSTROM INTL AIRPORT 66 92 63 91 / 5 0 0 5 DEL RIO INTL AIRPORT 71 93 68 94 / 10 10 10 5 SAN ANTONIO INTL AIRPORT 69 92 68 92 / 5 0 0 5 && .EWX WATCHES/WARNINGS/ADVISORIES...NONE. && 01/10/pm
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 521 AM CDT MON AUG 30 2004 TXZ171>173-183>194-202>209-217>225-228-311100- 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- 521 AM CDT MON AUG 30 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE...TODAY AND TONIGHT. ISOLATED SHOWERS AND THUNDERSTORMS ARE EXPECTED LATE THIS MORNING THROUGH THE AFTERNOON AND EVENING OVER MAINLY THE WESTERN AND SOUTHERN PART OF SOUTH CENTRAL TEXAS. THIS INCLUDES AREAS WEST OF A LEAKEY TO PEARSALL LINE AND SOUTH OF A PEARSALL TO GONZALES TO LA GRANGE LINE. WIND GUSTS OF 20 TO 40 MPH...OCCASIONAL LIGHTNING AND BRIEF HEAVY RAIN IS POSSIBLE WITH THE STRONGER THUNDERSTORMS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. ISOLATED DAYTIME TO EARLY EVENING SHOWERS OR THUNDERSTORMS ARE POSSIBLE OVER THE EAST AND SOUTHEAST PARTS OF SOUTH CENTRAL TEXAS FRIDAY AND SATURDAY. HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
The national radar mosaic for the moment the first event began.
2 flash flood. Local standard time, as filed.
Showers and thunderstorms in the late night hours produced general 1 to 2 inch totals over northeast Val Verde County with isolated totals to 4 inches. US277 was reported to be under water in places north of Loma Alta through the early morning hours
Flash Flooding was in reported in the city of Uvalde as up to 4 inches of rain fell in less than 2 hours. Widespread showers and thunderstorms dropped general 1 to 2 inch amounts over the rest of the county. Up to 3.5 inches was reported, along with brief flash flooding at Garner Park. The Emergency Manager indicated problems with numerous low water crossings in the late afternoon.
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: 5420678, 5420679.