Slow moving thunderstorms produced heavy rainfall over Val Verde and Edwards Counties.
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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.
Slow moving thunderstorms produced heavy rainfall over Val Verde and Edwards 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 8, 7:13 PM CST, 47 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 813 PM CDT TUE MAY 8 2007 .UPDATE... SHOWED INCREASING RAIN CHANCES FROM THE WEST TONIGHT PER TRENDS AND ADJUSTED FORECASTS PER SPC WATCH. SERIES OF WEATHER DISTURBANCES IN ADVANCE OF LOW ALOFT OVER THE SOUTHWEST U.S. AND NORTHERN MEXICO WILL MAINTAIN A CHANCE FOR SHOWERS AND THUNDERSTORMS THROUGH THURSDAY. RAIN CHANCES MAY CONTINUE SOME ON FRIDAY...AS FINAL WAVE OF SHOWERS DEVELOPS OVER THE AREA. DECREASING RAIN CHANCES EXPECTED FROM THE WEST FRIDAY NIGHT THROUGH SATURDAY. CONTINUING FLASH FLOOD WATCH FOR THE WEST PART OF THE AREA THROUGH TONIGHT. && .PREV DISCUSSION... /ISSUED 634 PM CDT TUE MAY 8 2007/ AVIATION... UPPER LOW ACROSS NEW MEXICO HAS PROVIDED ENOUGH INSTABILITY ALOFT FOR A COMPLEX OF THUNDERSTORMS TO DEVELOP ACROSS THE BIG BEND REGION TO THE RED RIVER VALLEY. THIS SYSTEM WILL SLOWLY MOVE EAST, AND IS EXPECTED TO AFFECT THE KDRT AERODROME THIS EVENING AND TONIGHT. LINGERING CB WITH VCTS IS EXPECTED THROUGH 06Z OUT WEST...MAINLY ALONG AND WEST OF A KERV TO KLRD LINE. MORE BENIGN CONDITIONS ARE ANTICIPATED ALONG THE I-35 CORRIDOR WITH VFR PERSISTING THROUGH THE EVENING AND EARLY NIGHT HOURS. STRATUS DEVELOPMENT IS EXPECTED TO LOWER CIGS TO MVFR BY 03-04Z. CIGS WILL CONTINUE TO LOWER AND COULD SEE SOME IFR CONDITIONS IN THE NEAR- DAWN HOURS. LIGHT TO MODERATE SE FLOW AT THE SFC WILL CONTINUE THROUGH THE TAF PERIOD. PREV DISCUSSION... /ISSUED 346 PM CDT TUE MAY 8 2007/ DISCUSSION... THE UPPER LOW IS APPARENT OVER NM ON WV SATELLITE IMAGERY AND IS MOVING SLOWLY TOWARD WEST TEXAS. THIS FEATURE WILL KEEP THINGS UNSETTLED OVER SOUTH CENTRAL TEXAS FOR THE NEXT FEW DAYS. MODELS SHOW THIS TROUGH MOVING ACROSS TEXAS DURING THE NEXT 48 TO 72 HOURS. FOR THE SHORT TERM DEW POINTS ARE IN THE LOW 70S IN THE SOUTHEASTERN PART OF THE CWA AND WINDS ARE FROM THE SOUTHEAST...SO EXPECT MOISTURE TO INCREASE ACROSS THE REST OF THE FORECAST AREA. THIS WILL PRIME THE ATMOSPHERE FOR THE UPPER TROUGH TO TRIGGER CONVECTION TONIGHT...ESPECIALLY IN THE NORTHWEST. BIG CONCERNS WILL BE SLIGHT THREAT OF SEVERE THUNDERSTORMS AND HEAVY RAIN CAUSING FLASH FLOODING. THE WESTERN HALF OF OUR CWA IS INCLUDED IN THE SLIGHT RISK AREA FROM SPC. MORNING SOUNDING AT DRT SHOWED PW AROUND 135 PERCENT OF NORMAL. HAVE INCLUDED MENTION OF POSSIBLE SEVERE IN ZONES AND WILL CONTINUE THE FLASH FLOOD WATCH FOR THE WESTERN COUNTIES. RAIN CHANCES WILL CONTINUE THROUGH FRIDAY AFTERNOON WITH A BIT OF A LULL THURSDAY NIGHT. CHANCE OF HEAVY RAIN WILL DECREASE...BUT SEVERE THREAT WILL RETURN WED AFTERNOON AND EVENING. ONCE THE UPPER TROUGH EXITS THE REGION...HIGH PRESSURE WILL MOVE IN BEGINNING THIS WEEKEND. THIS WILL BEGIN A QUIET PERIOD WITH LITTLE CHANCE OF RAIN AND NEAR NORMAL TEMPERATURES. && .PRELIMINARY POINT TEMPS/POPS... AUSTIN CAMP MABRY 65 85 64 81 64 / 50 30 20 30 20 AUSTIN BERGSTROM INTL AIRPORT 64 84 62 81 62 / 40 30 20 30 20 DEL RIO INTL AIRPORT 65 85 65 82 65 / 70 40 40 20 10 SAN ANTONIO INTL AIRPORT 65 84 64 81 64 / 50 30 30 30 20 && .EWX WATCHES/WARNINGS/ADVISORIES... FLASH FLOOD WATCH UNTIL 7 AM CDT WEDNESDAY FOR THE FOLLOWING ZONES: DIMMIT...EDWARDS...KINNEY...MAVERICK...REAL...UVALDE...VAL VERDE... ZAVALA. && 08/25/04/PM
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1150 AM CDT TUE MAY 8 2007 TXZ171>173-183>194-202>209-217>225-228-091100- 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- 1150 AM CDT TUE MAY 8 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE...TODAY AND TONIGHT THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS...GENERALLY ALONG AND WEST OF A BURNET TO BOERNE TO DILLEY LINE THIS EVENING THROUGH TONIGHT. A FLASH FLOOD WATCH REMAINS IN EFFECT FOR WESTERN SOUTH CENTRAL TEXAS COUNTIES...GENERALLY ALONG AND WEST OF A ROCKSPRINGS TO LEAKEY TO CARRIZO SPRINGS LINE...VALID THIS EVENING THROUGH TONIGHT. A COMPLEX OF STRONG TO SEVERE THUNDERSTORMS OVER WEST TEXAS ARE EXPECTED TO EXPAND EAST INTO THE SOUTHERN EDWARDS PLATEAU BY EARLY THIS EVENING...AND INTO THE WESTERN HILL COUNTRY AND RIO GRANDE PLAINS BY LATE TONIGHT. ANY THUNDERSTORM THAT DEVELOPS WILL BE CAPABLE OF PRODUCING LARGE HAIL...DAMAGING WINDS...AND BRIEF TORNADOES. SOME OF THE THUNDERSTORMS WILL TRAIN OVER THE SAME AREAS... CAUSING FLASH FLOODING RAINS OF 2 TO 5 INCHES OVER LOCALIZED AREAS. OVERNIGHT RAINFALL TOTALS IN THE FLASH FLOOD WATCH AREA SHOULD AVERAGE AROUND ONE INCH...BUT EVEN AN INCH OF RAIN FALLING IN A SHORT TIME COULD PRODUCE FLOODING OVER THE ALREADY SATURATED SOILS. THERE IS ALSO A POTENTIAL FOR MINOR TO MODERATE RIVER FLOODING FOR STREAMS OVER EDWARDS AND VAL VERDE COUNTY...INCLUDING THE RIO GRANDE...PECOS...AND DEVILS RIVERS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THE SLIGHT RISK OF SEVERE THUNDERSTORMS WILL CONTINUE WEDNESDAY INTO THE DAYTIME HOURS THURSDAY...WITH THE THREAT SPREADING WEST TO EAST WEDNESDAY NIGHT. THE MAIN THREAT WILL BE FOR LOCALLY HEAVY RAINFALL...WITH ISOLATED TOTALS OF 3 TO 6 INCHES POSSIBLE. LARGE HAIL...DAMAGING WINDS...AND BRIEF TORNADOES ARE ALSO POSSIBLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS EVENING AND TONIGHT
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 628 PM CDT TUE MAY 8 2007 TXZ171>173-183>194-202>209-217>225-228-090300- 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- INCLUDING THE CITIES OF...LLANO...BURNET...GEORGETOWN...DEL RIO... ROCKSPRINGS...LEAKEY...KERRVILLE...BANDERA...FREDERICKSBURG... BOERNE...BLANCO...SAN MARCOS...AUSTIN...BASTROP...GIDDINGS... BRACKETTVILLE...UVALDE...HONDO...SAN ANTONIO...NEW BRAUNFELS... SEGUIN...LOCKHART...LA GRANGE...EAGLE PASS...CRYSTAL CITY... PEARSALL...PLEASANTON...FLORESVILLE...KARNES CITY...GONZALES... CUERO...HALLETTSVILLE...CARRIZO SPRINGS 628 PM CDT TUE MAY 8 2007 ...RAIN CHANCES CONTINUE THIS WEEK... A SLOW MOVING LOW ALOFT OVER THE SOUTHWEST U.S. AND NORTHERN MEXICO WILL MOVE SLOWLY EAST THE NEXT FEW DAYS...MOVE ACROSS SOUTH CENTRAL TEXAS THURSDAY AND EAST OF THE AREA ON FRIDAY AND FRIDAY NIGHT. A SERIES OF FAST MOVING WEATHER DISTURBANCES IN ADVANCE OF THIS SPRING STORM SYSTEM WILL MOVE NEAR THE AREA THROUGH THURSDAY. THERE IS A CHANCE FOR SHOWERS OR THUNDERSTORMS THROUGH THURSDAY. ON FRIDAY...THERE WILL BE A CONTINUED CHANCE FOR RAIN...SHOWERS OR THUNDERSTORMS...THEN THIS ACTIVITY IS EXPECTED TO DECREASE FROM THE WEST FRIDAY NIGHT. THIS WEATHER PATTERN HAS THE POTENTIAL TO CAUSE SEVERE THUNDERSTORMS AND HEAVY RAINS. THE PRIMARY SEVERE WEATHER THREATS WILL BE LARGE HAIL AND DAMAGING WINDS. LOCALLY HEAVY RAINFALL IS LIKELY AT TIMES...AND HAS THE POTENTIAL TO CAUSE FLASH FLOODING THIS WEEK. ADDITIONAL STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT. FOR THE LATEST WEATHER INFORMATION...ON THE WEB...GO TO WWW.SRH.WEATHER.GOV/EWX.
The national radar mosaic for the moment the first event began.
2 flash flood. Local standard time, as filed.
Scattered showers and thunderstorms produced general 1 to 2 inch rain amounts over northern Val Verde County, with up to 4 inches near Juno. SH163 was closed near Juno due to flash flooding.
Scattered showers and thunderstorms produced general 1 to 2 inch rain amounts in northwest Edwards County, with highest totals near 3 inches. SH55 closed was northwest of Rocksprings due to high water.
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: 33340, 33341.