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 May 13, 2:00 PM CST, 4 hours 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 300 PM CDT THU MAY 13 2004 .DISCUSSION... THUNDERSTORM ACTIVITY CONTINUES TO FIRE UP OVER THE EASTERN HALF OF THE FORECAST WARNING AREA AS A UPPER LEVEL SHORTWAVE MOVES EASTWARD. ALSO INDICATED IS A SURFACE DRYLINE MOVING ACROSS CENTRAL TEXAS WITH ASSOCIATED THUNDERSTORM ACTIVITY. THIS ACTIVITY EXTENDING SOUTH INTO THE HILL COUNTRY COUNTIES. THE EASTERN COUNTIES CONTINUE TO BE UNDER THE INFLUENCE OF TROPICAL MOISTURE AND A MARGINAL INSTABILITY CONDITION. LOOKING FOR THUNDERSTORM ACTIVITY TO CONTINUE THROUGH THE REMAINDER OF TODAY AND INTO FRIDAY. WITH THE APPROACHING COLD FRONT MOVING INTO THE NORTHERN COUNTIES OF THE HILL COUNTRY LATE TONIGHT OR EARLY FRIDAY MORNING... THUNDERSTORMS ARE EXPECTED. A FLASH FLOOD WATCH IS IN EFFECT UNTIL 4PM CDT FRIDAY AFTERNOON. WET GROUND FROM PREVIOUS RAINS WILL NOT BE ABLE TO HOLD ANY ADDITIONAL RAINS. RAINFALL AMOUNTS OF FIVE TO SEVEN INCHES ARE EXPECTED. WITH ADDITIONAL RAINS EXPECTED ON FRIDAY...IT IS VERY POSSIBLE THE WATCH WILL BE REISSUED LATER TONIGHT TO INCLUDE ALL OF SOUTH CENTRAL TEXAS. MODEL GUIDANCE FROM THIS MORNING 12Z RUN DID NOT CHANGE SIGNIFICANTLY FROM LAST NIGHT 00Z RUN. STILL LOOKING AT THUNDERSTORMS OVER THE NEXT FIVE PERIODS AND WINDS SHIFTING TO THE NORTH OVER THE HILL COUNTRY FRIDAY MORNING AND PROGRESSING SOUTHWARD VERY SLOWLY THROUGH THE DAY. FRONT BECOMING STATIONARY LATE FRIDAY NIGHT INTO SATURDAY WITH AN OVER RUNNING EVENT PRODUCING RAINS INTO SATURDAY. LOOKING FOR WINDS RETURNING TO THE SOUTHEAST LATE SATURDAY. LAST MINUTE NOTE...SPC HAS ISSUED A TORNADO WATCH FOR MOST OF THE FORECAST WARNING AREA...WITH THE EXCEPTION BEING THE THREE EXTREME NORTHEAST COUNTIES OF LLANO...BURNET AND WILLIAMSON. THIS WATCH IS IN EFFECT UNTIL 01Z...8PM CDT TONIGHT. THUNDERSTORMS CONTINUE TO DEVELOP ALONG THE DRYLINE OVER THE WESTERN COUNTIES...MOVING EASTWARD. && .PRELIMINARY POINT TEMPS/POPS... AUSTIN CAMP MABRY 70 80 61 81 / 80 60 40 30 AUSTIN BERGSTROM INTL AIRPORT 70 80 61 81 / 80 60 40 30 DEL RIO INTL AIRPORT 70 86 65 82 / 40 50 40 30 SAN ANTONIO INTL AIRPORT 71 81 64 81 / 60 60 40 30 && .EWX WATCHES/WARNINGS/ADVISORIES...FLOOD WATCH FOR FLASH FLOODING IN EFFECT FOR THE EASTERN HALF OF THE REGION UNTIL 21Z...4PM FRIDAY. ...TORNADO WATCH FOR MOST OF SOUTH CENTRAL TEXAS UNTIL 01Z...8PM CDT TONIGHT. &&
HAZARDOUS WEATHER OUTLOOK...UPDATE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 900 AM CDT THU MAY 13 2004 TXZ171>173-183>194-202>209-217>225-228-141100- ATASCOSA-BANDERA-BASTROP-BEXAR-BLANCO-BURNET-CALDWELL-COMAL-DEWITT- 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- 900 AM CDT THU MAY 13 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE... THERE IS A RISK OF SEVERE THUNDERSTORMS TODAY...IN THE SECTOR EAST OF INTERSTATE 35 AND NORTH OF INTERSTATE 10. THIS INCLUDES THE AUSTIN METROPOLITAN AREA EAST TO LAGRANGE AND LEXINGTON. THE MAIN THREAT IS TORNADIC ACTIVITY WITH HAIL IN EXCESS OF 2 INCHES DIAMETER. OTHER THUNDERSTORMS IN THE REGION WILL BE SLOW MOVING RESULTING IN HIGH RAINFALL AMOUNTS AND FLASH FLOODING. .DAYS TWO THROUGH SEVEN... CHANCES FOR THUNDERSTORMS INCREASE SIGNIFICANTLY ON FRIDAY...WITH HEAVY RAIN AND FLASH FLOODING BEING THE MAIN THREAT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
334 PM CDT THU MAY 13 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0332 PM FLASH FLOOD POTH 29.07N 98.08W
05/13/2004 WILSON TX LAW ENFORCEMENT
SEVERAL ROADS CLOSED IN SOUTHERN WILSON COUNTY INCLUDING
US 181.
&&
JPBSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 518 PM CDT THU MAY 13 2004 TXZ183>194-202>209-217>225-228-140059- ATASCOSA-BANDERA-BASTROP-BEXAR-BLANCO-CALDWELL-COMAL-DEWITT-DIMMIT- EDWARDS-FAYETTE-FRIO-GILLESPIE-GONZALES-GUADALUPE-HAYS-KARNES- KENDALL-KERR-KINNEY-LAVACA-LEE-MAVERICK-MEDINA-REAL-TRAVIS-UVALDE- VAL VERDE-WILSON-ZAVALA- 518 PM CDT THU MAY 13 2004 ...TORNADO WATCH 201 IS IN EFFECT UNTIL 800 PM CDT... THE FOLLOWING COUNTIES REMAIN IN THE TORNADO WATCH... ATASCOSA...BANDERA...BASTROP...BEXAR...BLANCO...CALDWELL...COMAL... DEWITT...DIMMIT...EDWARDS...FAYETTE...FRIO...GILLESPIE...GONZALES... GUADALUPE...HAYS...KARNES...KENDALL...KERR...KINNEY...LAVACA...LEE... MAVERICK...MEDINA...REAL...TRAVIS...UVALDE...VAL VERDE...WILSON AND ZAVALA.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
644 PM CDT THU MAY 13 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0250 PM HAIL POTH 29.07N 98.08W
05/13/2004 0.75 INCH WILSON TX EMERGENCY MNGR
&&
PMThe national radar mosaic for the moment the first event began.
2 flash flood. Local standard time, as filed.
Showers and thunderstorms dropped between 1 and 2 inches of rain over most of Llano County, with up to 4 inches in the western part between Llano and Castell. Most rural roads in western Llano County were closed briefly due to flash flooding.
General 1 inch rains fell over Gillespie County, with isolated totals near 3 inches. Several roads in the central part of the county 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, May 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: 5398129, 5398130.