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 11, 3:30 AM CST, 3 hours 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 430 AM CDT TUE MAY 11 2004 .DISCUSSION... PRECIPITABLE WATER VALUES ARE EXPECTED TO APPROACH 1.8 IN ACROSS CENTRAL AND EASTERN PARTS OF THE FORECAST AREA TODAY. THUS WITH A SLOW MOVING DISTURBANCE TRIGGERING NUMEROUS THUNDERSTORMS AND SATURATED SOILS, HAVE OPTED FOR A FFA FOR THIS AREA. SOME LOCALIZED FLOODING IS ALSO POSSIBLE OVER WESTERN SECTIONS THROUGH DAYBREAK, BUT EXPECT CONDITIONS TO IMPROVE BY THAT TIME. RAINFALL AMOUNTS ARE EXPECTED TO AVERAGE CLOSE TO 1 INCH OVER THE WATCH AREA WITH SPOTTY 3 INCH AMOUNTS POSSIBLE. SEVERE THREAT SHOULD BE MINIMAL SINCE THE UPPER DISTURBANCE NOT PRODUCING STRONG WIND SHEAR AND HIGH PRECIPITABLE WATER VALUES DOESNT USUALLY SUPPORT HAILSTORMS. THIS DISTURBANCE SHOULD START TO PULL AWAY FROM SOUTH CENTRAL TEXAS BY LATE THIS AFTERNOON. LAPSE RATES COULD BE STEEP ENOUGH TO SUPPORT EVENING CONVECTION, BUT STABILITY SHOULD INCREASE WITH THE LOSS OF HEATING. THE NEXT WEATHER SYSTEM IS NOT FAR BEHIND SO A MOSTLY CLOUDY DAY WEDNESDAY SHOULD GIVE WAY TO MORE CONVECTION THURSDAY THROUGH FRIDAY NIGHT. THIS LARGER TROUGH WILL PASS MAINLY TO THE NORTH OF THE AREA BUT SHOULD SET OFF AN MCS LATE FRIDAY INTO SATURDAY MORNING. THIS WILL BRING A WIND SHIFT/WEAK FRONT, BUT SHOULD NOT MODIFY THE AIR TOO MUCH. THE CONTINUED ZONAL PATTERN SHOULD SUPPORT ISOLATED POPS OVER THE WEEKEND WITH UPPER RIDGING FINALLY EXPECTED TO TAKE OVER ON TUESDAY. HOWEVER, POOR RUN TO RUN CONSISTENCY FROM BOTH THE GFS AND ECMWF LEADS TO A CONTINUED LOW CONFIDENCE EXTENDED, LARGELY DUE TO THE ACTIVE SUBTROPICAL JET. AT LEAST TEMPS ARE MORE PREDICTABLE WITH LOW DIURNAL RANGES AND AT OR BELOW NORMAL HIGHS A GOOD BET. && .PRELIMINARY POINT TEMPS/POPS... AUSTIN CAMP MABRY 80 69 84 68 / 80 30 10 10 AUSTIN BERGSTROM INTL AIRPORT 80 68 84 68 / 80 30 10 10 DEL RIO INTL AIRPORT 86 70 87 70 / 40 20 10 10 SAN ANTONIO INTL AIRPORT 80 69 84 70 / 80 20 10 10 && .EWX WATCHES/WARNINGS/ADVISORIES...FFA CENTRAL AND EASTERN PARTS OF SOUTH CENTRAL TX && 18/08
HAZARDOUS WEATHER OUTLOOK UPDATED NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 703 AM CDT TUE MAY 11 2004 TXZ171>173-183>194-202>209-217>225-228-121100- 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- THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE...TODAY AND TONIGHT. SHOWERS AND THUNDERSTORMS ARE LIKELY OVER SOUTH CENTRAL TEXAS TODAY...AS A MID MAY RAIN MAKING SYSTEM ALOFT MOVES OVER THE AREA. A FLOOD WATCH FOR FLASH FLOODING IS IN EFFECT THROUGH 400 PM CDT... ALONG AND EAST OF A LLANO TO UVALDE TO EAGLE PASS LINE. THIS INCLUDES THE AUSTIN AND SAN ANTONIO AREAS. LOCALLY HEAVY RAIN IS POSSIBLE. THERE IS A CHANCE OF SHOWERS AND THUNDERSTORMS OVER THE EAST PART OF SOUTH CENTRAL TEXAS THIS EVENING DECREASING TO A SLIGHT CHANCE OF SHOWERS DURING THE NIGHT. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. THERE IS A SLIGHT CHANCE OF SHOWERS WEDNESDAY OVER EASTERN PARTS OF SOUTH CENTRAL TEXAS. FOR THURSDAY THROUGH FRIDAY NIGHT THERE IS AN INCREASING CHANCE OF SHOWERS AND THUNDERSTORMS...AS ANOTHER RAIN MAKING SYSTEM PASSES OVER THE AREA FROM THE WEST. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IS EXPECTED SATURDAY THROUGH MONDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED REQUIRED TODAY WHERE HEAVY RAIN AMOUNTS ARE OBSERVED OR DEVELOP.
The national radar mosaic for the moment the first event began.
2 flash flood. Local standard time, as filed.
Storms produced general 1 to 2 inch amounts from Eagle Pass southward in Maverick County, with reports of nearly 4 inches near El Indio. Several roads were closed due to flash flooding.
Rainfall averaged nearly 1.5 inches in Dimmit County, with totals of up to 4 inches in the southwestern quarter. Several rural roads southwest of Carrizo Springs were closed in the late morning due to high water.
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: 5399725, 5399726.