Scattered thunderstorms through the early morning hours produced heavy rain and flash flooding in the west-central counties.
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.
Scattered thunderstorms through the early morning hours produced heavy rain and flash flooding in the west-central counties.
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 26, 11:53 PM CST, 3 hours 7 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1253 AM CDT SUN MAY 27 2007 .AVIATION... AREAS OF IFR CIGS WILL PERSIST THROUGH MID MORNING, THEN LIFT TO MVFR BY NOON WITH SOME VFR IN THE AFTERNOON. SCATTERED TO NUMEROUS SHRA/TSRA WILL CONTINUE AHEAD OF AN UPPER LOW. SELY WINDS WILL PREVAIL AROUND 10 KTS OR LESS. && .PREV DISCUSSION... /ISSUED 830 PM CDT SAT MAY 26 2007/ UPDATE... A LINE OF STORMS WAS MARCHING EAST ACROSS NORTHERN MEXICO AND SHOULD ENTER INTO CENTRAL VAL VERDE COUNTY DURING THE NEXT HOUR AND SOUTHERN PORTIONS BY 11 PM. ANOTHER OUTFLOW BOUNDARY PUSHING WEST WILL INTERSECT WITH THE LINE FOR POTENTIALLY SOME SORT OF ENHANCEMENT LATER TONIGHT OVER WESTERN PORTIONS (MAINLY RIO GRANDE PLAINS). UNOBSTRUCTED INFLOW AND HIGHER DEWPOINTS INTO THE STORMS SHOULD MAINTAIN THEM DEEPER INTO SOUTH CENTRAL TEXAS DURING THE LATE NIGHT HOURS. SKY..PROBABILITY AND WEATHER GRIDS WERE ALTERED HIGHER IN LIGHT OF THIS DEVELOPMENT. NEW TEXT FORECASTS OUT SOON. PREV DISCUSSION... /ISSUED 706 PM CDT SAT MAY 26 2007/ AVIATION... A MOIST UNSTABLE AIRMASS AND AN UPPER LEVEL TROUGH OF LOW PRESSURE OVER TX WILL KEEP ISOLD TO SCT SHRA/TSRA ACROSS THE AREA FOR THE NEXT 24 HOURS. VFR CONDITIONS WILL GRADUALLY BECOME MVFR CIGS AND VSBYS AFTER 03Z WITH AREAS OF IFR CIGS BETWEEN 08Z AND 14Z. PREV DISCUSSION... /ISSUED 315 PM CDT SAT MAY 26 2007/ DISCUSSION... CURRENT MESO-SCALE CONVECTIVE VORTEX IS SPAWNING NEW SLOW MOVING SHOWERS AND THUNDERSTORMS ACROSS THE AREA. AM EXPECTING LARGE CLUSTERS OF THUNDERSTORMS TO DEVELOP AND PERSIST THROUGH THE NIGHT WHILE SHIFTING NORTHEAST ACROSS THE REGION. HAVE EXTENDED THE FLASH FLOOD WATCH BEYOND 7 AM FOR THE EASTERN HALF OF THE CWA - LLANO TO KENDALL TO ATASCOSA COUNTIES AND EASTWARD. WILL LET THE EVENING SHIFT DECIDE IF FLASH FLOOD WATCH SHUD REMAIN FOR WESTERN COUNTIES BEYOND 7 AM SUNDAY BASED ON DEVELOPMENTS TONIGHT. THESE MESO-SCALE CONVECTIVE VORTICES WILL CONTINUE TO DEVELOP DAY AFTER DAY BUT PLACEMENT IS DIFFICULT. ALSO OUTFLOW BOUNDARY LOCATIONS HARD TO PROG. BUT ANYWAY ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WITH HIGH RAINFALL WILL CONTINUE ON AND OFF THROUGH MONDAY. THE MID AND UPPER FLOW SHIFTS TO A NORTHWEST AND NORTH DIRECTION, LIMITING THE ATMOSPHERIC MOISTURE FOR SHOWER PRODUCTION. HOWEVER, THE DRY LINE WILL BECOME A PLAYER IN AFTERNOON SHOWER DEVELOPMENT WITH A FEW CELLS MOVING INTO THE EDWARDS PLATEAU AND WESTERN HILL COUNTRY. DAYTIME TEMPS WILL RETURN TO NORMAL LEVELS TUESDAY AND WEDNESDAY. BY WEEKS END, THE DRY FLOW ALOFT WILL CONTINUE WITH MAX TEMPS AT OR ABOVE NORMAL. ANOTHER COLD FRONT IS PROGGED TO MOVE INTO TEXAS, BUT DONT SEE IT AFFECTING TEMPS DUE TO ITS SHALLOWNESS. && .PRELIMINARY POINT TEMPS/POPS... AUSTIN CAMP MABRY 66 82 67 85 69 / 40 40 40 40 20 AUSTIN BERGSTROM INTL AIRPORT 64 82 67 85 67 / 40 40 40 40 20 DEL RIO INTL AIRPORT 69 88 70 90 72 / 40 20 20 - - SAN ANTONIO INTL AIRPORT 67 84 68 86 69 / 40 40 30 30 10 && .EWX WATCHES/WARNINGS/ADVISORIES... FLASH FLOOD WATCH THROUGH THIS EVENING FOR THE FOLLOWING ZONES: ATASCOSA...BASTROP...BEXAR...BLANCO...BURNET...CALDWELL...COMAL... DE WITT...FAYETTE...GILLESPIE...GONZALES...GUADALUPE...HAYS... KARNES...KENDALL...LAVACA...LEE...LLANO...TRAVIS...WILLIAMSON... WILSON. FLASH FLOOD WATCH UNTIL 7 AM CDT THIS MORNING FOR THE FOLLOWING ZONES: BANDERA...DIMMIT...EDWARDS...FRIO...KERR...KINNEY... MAVERICK...MEDINA...REAL...UVALDE...VAL VERDE...ZAVALA. && 18/04
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1128 AM CDT SAT MAY 26 2007 TXZ171>173-183>194-202>209-217>225-228-271200- 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- 1128 AM CDT SAT MAY 26 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT A FLASH FLOOD WATCH IS IN EFFECT. SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS...SOME WITH LOCALLY HEAVY RAINS...CAN BE EXPECTED. DUE TO SATURATED SOILS FROM RECENT RAINS...RUN OFF WILL BE RAPID LEADING TO FLASH FLOODING. GUSTY WINDS ARE ALSO POSSIBLE NEAR STORMS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY A FLASH FLOOD WATCH CONTINUES THROUGH SUNDAY MORNING. SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS...SOME WITH LOCALLY HEAVY RAINS...CAN BE EXPECTED. DUE TO SATURATED SOILS FROM RECENT RAINS...RUN OFF WILL BE RAPID LEADING TO FLASH FLOODING. GUSTY WINDS ARE ALSO POSSIBLE NEAR STORMS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
The Austin/San Antonio radar (KEWX), 55 km away, was scanning. The volume nearest the first event began at 09:00 UTC.
3 flash flood. Local standard time, as filed.
Scattered showers and thunderstorms produced general 2 to 3 inch rain amounts in the northern part of San Antonio. Flash flooding closed many roads in the city, including Callaghan, Hausman, McCullough, Prue, and Woodlawn.
Scattered showers and thunderstorms produced general 2 to 3 inch rain amounts around Lakehills. Flash flooding closed Park Rd 73 in two places.
Scattered showers and thunderstorms produced general 2 to 3 inch rain amounts over northeast Medina County with up to 5 inches near Rio Medina. SH173 closed due to high water at Verde Creek and FM471 was closed near LaCoste.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2007Every state in 2007This day in weather historyWarnings in Texas, May 2007
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: 33383, 33382, 33384.