6 flash flood, as filed by the National Weather Service.
Every event with a place to put it; 6 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 Apr 25, 9:00 AM CST, 0 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1000 AM CDT SUN APR 25 2004 .DISCUSSION...CLASSIC SOUTH TEXAS HEAVY RAIN SETUP THIS MORNING. STALLED BOUNDARIES FROM YESTERDAYS CONVECTION...HIGH PW GULF AIR ISENTROPICALLY LIFTED OVER THE BOUNDARIES...AND WARM LOW AND MID LEVELS (WARM CLOUD DEPTH 4.2 KM) ALL LEAD TO HEAVY RAIN AND RESULTING FLASH FLOODING. THE LEDBETTER PROFILER SHOWS THE LLJ HAS FOLLOWED ITS TYPICAL DIURNAL WEAKENING. HOWEVER...PERSISTENT SOUTHERLY FLOW OF 15-20 KTS AND DAYTIME HEATING WILL COUNTERACT THE WEAKER LLJ TO MAINTAIN CONVECTION THROUGH THE DAY. SOME OF THE STRONGER CELLS HAVE PRODUCED HIGH RAIN RATES...SUCH AS 0.86 INCHES IN AN HOUR AT STINSON FIELD BETWEEN 8 AND 9 AM. THE MAIN FORECAST ISSUE IS AREAL EXTENT OF HEAVY RAIN AND FLOOD POTENTIAL. RADAR AND SATELLITE TRENDS AGREE WITH MODEL PROJECTIONS (MAINLY GFS) THAT THE AREA OF HEAVY RAIN WILL BE MAINLY EAST OF I-37 AND SOUTH OF I-10. JUST ISSUED A FLOOD WATCH FOR FLASH FLOODING FOR THIS AREA THROUGH 4 PM. THE GFS/ETA INDICATE THE FRONTAL PUSH AND MID/UPPER LEVEL FORCING SHOULD SHIFT EAST BY THIS AFTERNOON... TAKING THE HEAVIEST RAIN WITH THEM. OTHERWISE...JUST ISSUED AN UPDATE FOR ALL OTHER ELEMENTS...MAINLY TO SHAVE 3F OFF TEMPS AND ADJUST OTHER ELEMENTS THROUGH THIS AFTERNOON TO OBSERVED TRENDS. && .PRELIMINARY POINT TEMPS/POPS... AUSTIN CAMP MABRY 74 60 80 55 / 60 20 10 0 AUSTIN BERGSTROM INTL AIRPORT 74 58 79 51 / 60 20 10 0 DEL RIO INTL AIRPORT 78 62 83 58 / 30 30 10 10 SAN ANTONIO INTL AIRPORT 74 61 80 54 / 60 20 10 0 && .EWX WATCHES/WARNINGS/ADVISORIES...FLOOD WATCH FOR FLASH FLOODING IN EFFECT UNTIL 4 PM CDT FOR THE FAR SOUTHEAST COASTAL PLAINS. && 08/26
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 945 AM CDT SUN APR 25 2004 TXZ171>173-183>194-202>209-217>225-228-261100- 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- 945 AM CDT SUN APR 25 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE...TODAY. SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH THIS AFTERNOON...THEN TAPER OFF AND MOVE EAST THIS EVENING. A FLOOD WATCH FOR FLASH FLOODING IS IN EFFECT FOR THE SOUTHEAST COASTAL PLAINS THROUGH THIS AFTERNOON...AS HEAVY PERSISTENT RAINFALL IS EXPECTED THERE. .DAYS TWO THROUGH SEVEN... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
The Austin/San Antonio radar (KEWX), 90 km away, was scanning. The volume nearest the first event began at 14:59 UTC.
6 flash flood. Local standard time, as filed.
General 1 to 2 inches of rain over Karnes County, with up to 3 inches in the southeast portion between Kenedy and Runge, caused widespread flash flooding that closed several rural roads.
Between one-half inch and one inch of rain fell across Wilson County. Heaviest rains were in the south part of the county, where up to 3 inches were reported near DeWees. Brief flash flooding developed.
Flash flooding was reported along SH791 northeast of Campbellton, where up to 3 inches of rain fell during the morning hours.
Between 2 and 3 inches of rain fell over northern DeWitt County, with roads reported closed near Yoakum due to flash flooding.
Around 2 inches of rain fell across most of southwest Lavaca County, with totals near 3 inches along US77 east of Yoakum. Several rural roads east of Yoakum were closed due to flash flooding.
Rainfall between 1 and 2 inches, with isolated areas of 3 inches, fell in northeast Fayette County. Roads in the area from LaGrange to Warrenton to Fayetteville were closed due to flash 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, April 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: 5392029, 5392030, 5392098, 5392099, 5392100, 5392101.