An area of low pressure aloft moved slowly eastward across South Central Texas and tapped mid-level Pacific moisture and low level moisture from the Gulf of Mexico to produce flooding rain.
Every event with a place to put it. 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 episode as NWS EWX wrote it up.
An area of low pressure aloft moved slowly eastward across South Central Texas and tapped mid-level Pacific moisture and low level moisture from the Gulf of Mexico to produce flooding rain.
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 Sep 9, 11:30 AM CST, 0 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1230 PM CDT WED SEP 9 2009 .DISCUSSION... SEE AVIATION FOR THE 18Z TAF DISCUSSION. && .AVIATION... SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE OCCURRING ACROSS MUCH OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY THIS AFTERNOON. THE CONVECTION IS MOVING NORTH TO NORTHEAST. THE CONVECTION WILL IMPACT THE I-35 TERMINALS THIS AFTERNOON AND WILL SPREAD WESTWARD IMPACTING KDRT LATE THIS AFTERNOON. CONVECTION WILL WANE OVERNIGHT WITH THE LOSS OF DAYTIME HEATING AND THEN ONCE AGAIN INCREASE IN AREAL COVERAGE BY THURSDAY AFTERNOON. MVFR CONDITIONS WILL OCCUR IN AND NEAR THE SHOWERS AND THUNDERSTORMS OTHERWISE VFR CONDITIONS WILL PREVAIL THIS AFTERNOON AND EVENING. EXPECT MVFR CIGS TO FORM AFTER MIDNIGHT AT THE I-35 TERMINALS THANKS TO THE ABUNDANT TROPICAL MOISTURE. && .PREV DISCUSSION... /ISSUED 1044 AM CDT WED SEP 9 2009/ UPDATE... OBSERVATIONAL DATA SHOWS A MOIST, UNSTABLE, AND UNCAPPED AIRMASS OVER SOUTH CENTRAL TEXAS. HAVE BROUGHT THE HIGHER AFTERNOON POPS INTO THIS MORNING AS THE SMALL CLUSTER OF SHOWERS/THUNDERSTORMS JUST NORTHEAST OF SAN ANTONIO TO THE CANYON LAKE AREA HAS EXPANDED FURTHER TO THE SOUTHWEST AND EAST. SOME LOCATIONS FROM BOERNE TO WIMBERLY HAVE ALREADY RECEIVED 2 TO 4 INCHES OF RAIN. WILL ADD LOCALLY HEAVY RAINFALL MENTION. APPEARS THE STAGE IS SET FOR A MULTI-DAY RAINFALL EVENT. && .PRELIMINARY POINT TEMPS/POPS... AUSTIN CAMP MABRY 74 91 72 89 72 / 50 70 50 70 50 AUSTIN BERGSTROM INTL AIRPORT 71 91 70 89 71 / 60 70 50 70 50 NEW BRAUNFELS MUNI AIRPORT 71 91 70 89 71 / 70 70 50 70 50 BURNET MUNI AIRPORT 72 90 70 87 69 / 50 50 50 60 50 DEL RIO INTL AIRPORT 75 89 73 89 72 / 70 70 50 70 50 GEORGETOWN MUNI AIRPORT 72 91 71 88 71 / 50 50 50 70 50 HONDO MUNI AIRPORT 73 90 72 89 69 / 70 70 50 70 50 SAN MARCOS MUNI AIRPORT 72 91 71 89 71 / 70 70 50 70 50 LA GRANGE - FAYETTE REGIONAL 72 90 72 90 72 / 60 70 50 70 50 SAN ANTONIO INTL AIRPORT 74 89 72 89 72 / 70 70 50 70 50 STINSON MUNI AIRPORT 74 89 72 89 72 / 70 70 50 70 50 && .EWX WATCHES/WARNINGS/ADVISORIES... NONE. && 04/13
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 521 AM CDT WED SEP 9 2009 TXZ171>173-183>194-202>209-217>225-228-101030- LLANO-BURNET-WILLIAMSON-VAL VERDE-EDWARDS-REAL-KERR-BANDERA- GILLESPIE-KENDALL-BLANCO-HAYS-TRAVIS-BASTROP-LEE-KINNEY-UVALDE- MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL-FAYETTE-MAVERICK-ZAVALA- FRIO-ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA-DIMMIT- 521 AM CDT WED SEP 9 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE...TODAY AND TONIGHT... UNSTABLE CONDITIONS ALOFT AND ABUNDANT MOISTURE THROUGHOUT THE ATMOSPHERE WILL BRING GOOD CHANCES FOR RAIN TO SOUTH CENTRAL TEXAS AND THE HILL COUNTRY TODAY. BENEFICIAL RAINS ARE GENERALLY EXPECTED...HOWEVER...THERE IS A CHANCE FOR ISOLATED MINOR FLOODING OF STREETS AND INTERSECTIONS ACROSS URBAN AREAS AS WELL AS OTHER FLOOD PRONE AREAS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY... GOOD CHANCES FOR RAIN WILL REMAIN IN THE PICTURE THROUGH THE WEEKEND AS A COLD FRONT APPROACHES THE REGION. THIS COULD RESULT IN MORE WIDESPREAD HEAVY RAINFALL ON SATURDAY WHICH MAY LEAD TO MINOR FLOODING OF URBAN AREAS AS WELL AS LOCATIONS WHICH ARE STILL WET FROM PREVIOUS RAINFALL. RAIN CHANCES WILL DECREASE ON SUNDAY AS THE ATMOSPHERE BEGINS TO STABILIZE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1109 AM CDT WED SEP 09 2009
..TIME.. ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE.. ....MAG.... ..COUNTY LOCATION.. ST.. ...SOURCE....
..REMARKS..
1034 AM HEAVY RAIN 1 NW BERGHEIM 29.83N 98.60W
09/09/2009 M5.50 INCH KENDALL TX BROADCAST MEDIA
HEAVY RAIN SINCE 430 AM
&&
EVENT NUMBER EWX0900049
JPBThe Austin/San Antonio radar (KEWX), 59 km away, was scanning. The volume nearest the first event began at 17:27 UTC.
27 flash flood, 1 flood. Local standard time, as filed.
Heavy rain caused flash flooding that closed Babcock Road from Camp Bullis Road to Chase Hill Boulevard in San Antonio.
Heavy rain caused water to cover a portion of Highway 55 south of Camp Wood.
Heavy rain caused numerous road closures in and around New Braunfels including Landa Street from Mission Drive to Walnut Avenue and South Business I35 from Seguin Avenue to Old McQueeney Road. Bulverde Road at the Cibolo Creek crossing at the Comal/Bexar County line was also closed in this time frame.
Heavy rain caused water to flow over the roadway which closed County Road 1492 at River Road.
Heavy rain caused the closure of Jung Road at Stahl Road in San Antonio.
Heavy rain caused flooding which closed Lockhill Road at White Bonnet Road.
Heavy rain caused flooding which closed Highway 57 from I35 West to Highway 140.
Heavy rain caused flooding which closed numerous roads in and around Jarrell including I35 in both directions.
Heavy rain caused flooding which closed FM 140 from Frio Town to Pearsall to the Atascosa County line.
Heavy rain caused a creek to rise four feet in less than 30 minutes and necessitated a high water rescue from a house.
Heavy rain caused flooding which closed FM 1582 from Highway 85 south to the county line.
Heavy rain caused Berry Creek to rise rapidly into flood at 15 feet.
Local law enforcement officials reported that many roads in the Jarrell area remained flooded from earlier heavy rain.
Heavy rain caused flooding which closed Morningside Drive at Solms Road.
Heavy rain caused flooding which closed West San Antonio Street at Loop 337.
Heavy rain caused flooding which closed County Road 226.
Heavy rain caused flooding which left vehicles stalled in high water on roadways.
Heavy rain caused flooding which closed Spicewood Springs Road between Loop 360 and Old Lampasas Trail.
Heavy rain caused Brushy Creek to flow over the roadway of County Road 174 between San Bass Road and Great Oaks Drive. There was at least one vehicle stranded.
Heavy rain caused several inches of water to flow over the roadway southeast of Florence.
Heavy rain caused flooding in Florence.
Heavy rain caused water to flow over the road on County Road 226.
Heavy rain caused flooding in Bull Creek Park.
Heavy rain caused Berry Creek to flood upstream of I35 near Georgetown.
Austin city officials reported that portions of Spicewood Springs Road remained closed due to flash flooding.
Heavy rain caused flooding which closed Crockett Street in Hallettsville.
Heavy rain caused water to flow across the intersection of Highways 21 and 77.
Heavy rain caused flooding on County Road 320 near Lexington.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2009Every state in 2009This day in weather historyWarnings in Texas, September 2009
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: 193131, 193132, 193137, 193143, 193144, 193223, 193145, 193146, 193149, 193150, 193151, 193152, 193154, 193155, 193224, 193156, 193157, 193159, 193162, 193164, 193169, 193225, 193171, 193172, 193173, 193174, 193220, 193226.