3 flash flood, as filed by the National Weather Service.
Every event with a place to put it; 3 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 Oct 31, 11:09 PM CST, 1 hour 51 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1109 PM CST SUN OCT 31 2004 .UPDATE...DID DECIDE TO CANCEL THE FLOOD WATCH WEST OF A LINE FROM LLANO TO KERRVILLE TO DILLEY. CONTINUE FLOOD WATCH FOR FLASH FLOODING EAST OF THAT LINE TIL NOON MONDAY. LINE OF CONVECTION SEEMS TO BE STRENGTHENING SOMEWHAT ALONG I-35 CORRIDOR LATE THIS EVENING AS IT MOVES INTO MORE FAVORABLE LOW LEVEL JET FLOW. && .PREV DISCUSSION... MONDAY..HOWEVER...THE STRONG UPPER LEVEL SOUTHWESTERLY TRAJECTORIES OFF THE SIERRA MADRES HAVE PRODUCED LARGE SCALE SUBSIDENCE ALOFT EMBEDDED WITHIN THE EASTERLY MOVING SYSTEM. THUS..MOST OF THE ACTIVITY IS ONLY SHOWERS EXCEPT FOR THUNDERSTORMS OVER EXTREME SOUTHWEST PORTIONS COMING OFF THE MOUNTAINS. A LOOK AT THE EVENING SOUNDINGS CONFIRM MULTIPLE INVERSIONS ALOFT WHICH IS A SIGN OF UPPER LEVEL SUBSIDENCE. THERE IS A POSSIBILITY THAT THE WATCH MAY BE CANCELLED OR REDEFINED LATER THIS EVENING..AFTER LOOKING AT LATER DATA. THE NEXT 24 HOURS WILL SEE A SIGNIFICANT WX EVENT ACROSS TX AS A S/W TROF NEAR BAJA LIFTS NEWD THIS EVENING...AHEAD OF A TROF DROPPING SEWD INTO...AND CLOSING OFF IN THE 4 CORNERS REGION. THIS WILL RESULT IN AN INITIAL ROUND OF ORGANIZED CONVECTION MOVG INTO THE WRN HALF OF THE CWA THIS EVENING. THERE WILL BE A POTENTIAL FOR ISOLD SVR STORMS GIVEN THE STG HEATING OVER THE RIO GRANDE PLAINS THIS AFTN ALONG WITH SFC BOUNDARY CURRENTLY DRIFTING INTO THE WRN COUNTIES. LATER THIS EVENING A WELL DEFINED OUTFLOW BOUNDARY/INVERTED TROF WILL PERSIST OVER THE WRN CWA AS ADDITIONAL S/W ENERGY ROUNDS THE BASE OF THE TROF INTO SW TX. WILL THEN TRANSITION INTO A HEAVY RAIN EVENING LATE THIS EVENING INTO MONDAY MORNING AS A SLOW MOVG MCS/OUTFLOW BOUNDARY TRACK EWD ACRS THE CWA. COMBINATION OF BACK- BUILDING...CELL TRAINING OVER FAIRLY WET S TX SOILS OVER A 6-12 HOUR DURATION WILL HEIGHTEN THE FLOOD THREAT THAT WILL INCLUDE FLASH AND THEN POSSIBLE RIVER FLOODING. THE ETA AND GFS HAVE CONTD TO TREND TOWARD THE LESS PROGRESSIVE ECMWF AND UKMET SOLNS...AND THEREFORE HAVE ADJUSTED FORECAST TO KEEP FFA/HIGHER POPS ACRS THE ERN CWA INTO MORNING MORNING/MONDAY NIGHT RESPECTIVELY. THERE WILL ALSO COULD BE A SVR THREAT OVER THE FAR ERN CWA MON AFTN UNTIL THE COLD FRONTAL BOUNDARY PUSHES WELL EAST OF THE CWA AND CAA BEGINS STRENGTHEN FROM THE WEST. TUESDAY COULD SEE SOME SPRINKLES IN THE NE-EAST WITH AN UPR SHEAR ZONE BUT EXPECT MOSTLY MID LEVELS CLOUDS AND VIRGA. LONG TERM FORECAST FOR WED THRU NEXT WEEKEND CONTS TO LOOK COOL-MILD AND DRY WITH THE ECMWF/GFSLR INDICATING A QUASI WESTERLY-NWLY FLOW ALOFT...A RE-ENFORCING COLD FRONT LATE THU/FRI. && .EWX WATCHES/WARNINGS/ADVISORIES...FLOOD WATCH FOR FLASH FLOODING TIL NOON MONDAY EAST OF A LINE FROM LLANO TO KERRVILLE TO DILLEY.. RIVER FLOOD OUTLOOK FOR PORTIONS OF THE HILL COUNTRY. && 02/13
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 415 AM CST SUN OCT 31 2004 TXZ171>173-183>194-202>209-217>225-228-011200- 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- 415 AM CST SUN OCT 31 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE...TODAY AND TONIGHT ...FLOOD WATCH FOR FLASH FLOODING LATE THIS AFTERNOON AND TONIGHT... SHOWERS AND THUNDERSTORMS WILL INCREASE ACROSS SOUTH CENTRAL TEXAS TODAY AHEAD OF AN UPPER LEVEL TROUGH AND SURFACE COLD FRONT. MOISTURE AND INSTABILITY WILL INCREASE LEADING TO HEAVY RAINFALL AND ISOLATED SEVERE STORMS. DUE TO NEARLY SATURATED SOILS FROM RECENT RAINS...RUNOFF WILL BE RAPID WITH FLASH FLOODING LIKELY AND SOME RIVER FLOODING POSSIBLE. ATMOSPHERIC PARAMETERS SUGGEST A THREAT OF DAMAGING WINDS MAINLY THIS AFTERNOON AND EVENING. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THE UPPER LEVEL TROUGH AND COLD FRONT WILL MOVE ACROSS SOUTH CENTRAL TEXAS. SHOWERS AND THUNDERSTORMS WILL CONTINUE MAINLY ACROSS CENTRAL EASTERN AREAS OF SOUTH CENTRAL TEXAS MONDAY INTO MONDAY NIGHT. HEAVY RAINFALL WILL CONTINUE WITH ADDITIONAL FLOODING POSSIBLE ON MONDAY. ISOLATED SEVERE STORMS WITH DAMAGING WINDS AND LARGE HAIL ARE ALSO POSSIBLE MONDAY. THE TROUGH AND FRONT WILL MOVE OFF TO THE EAST BY TUESDAY RESULTING IN A COLD AND DRY AIRMASS. NO HAZARDOUS WEATHER IS EXPECTED TUESDAY THROUGH SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND TONIGHT.
The Austin/San Antonio radar (KEWX), 72 km away, was scanning. The volume nearest the first event began at 07:01 UTC.
3 flash flood. Local standard time, as filed.
Showers and thunderstorms through the late evening produced general 1 inch totals across the central part of Blanco County. Highest amounts approached 3 inches between Johnson City and Blanco. Numerous rural roads were closed due to flash flooding, including FM2766 and FM165.
The Austin media reported that flash flooding had developed shortly after midnight as a general 1 inch rain fell over the city. Some parts of the city received up to 2 inches.
The Austin media reported that flash flooding had redeveloped just prior to sunrise over parts of Austin, including Lakewood Dr. at Bull Creek. Other problems were reported at Spicewood Springs, along Capitol of Texas Highway, FM535, and north-bound Mopac Expressway near Steck Ave.
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, November 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: 5428870, 5428871, 5428872.