Thunderstorms associated with a persistent upper level low produced heavy rain and flash flooding on the morning of July 2 in Karnes County.
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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.
Thunderstorms associated with a persistent upper level low produced heavy rain and flash flooding on the morning of July 2 in Karnes County.
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 Jul 2, 8:47 AM CST, 13 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 947 AM CDT MON JUL 2 2007 .UPDATE... NO CHANGES FOR NOW. WITH THE UPPER DYNAMICS SHIFTING AROUND, WILL NEED TO RECONFIGURE THE FLASH FLOOD WATCH AND EXTEND IT INTO THE NIGHTTIME HOURS. && .PREV DISCUSSION... /ISSUED 614 AM CDT MON JUL 2 2007/ AVIATION... A VERY MOIST TROPICAL AIRMASS FEEDING INTO S TX ALONG WITH A WEAK UPPER LEVEL LOW PRESSURE SYSTEM OVER N TX WILL COMBINE TO PRODUCE SCT TO NMRS SHRA/TSRA ACROSS THE AREA FOR THE NEXT 24 HOURS. CIGS AND VSBYS WILL BE QUITE VARIABLE DUE TO THE PERIODS OF CONVECTION THAT WILL MOVE ACROSS THE AREA. VFR CONDITIONS ARE POSSIBLE BETWEEN THE SHRA/TSRA AND OVER THE FAR WESTERN SECTIONS INVOF KDRT. OTHERWISE IFR TO MVFR CIGS WILL PREVAIL WITH OCCASIONAL IFR- LIFR CIGS/VSBYS IN THE SHRA/TSRA. PREV DISCUSSION... /ISSUED 433 AM CDT MON JUL 2 2007/ DISCUSSION... HERE WE GO AGAIN. DEEP BOUNDARY LAYER MOISTURE COMBINED WITH AN UPPER LEVEL LOW PRESSURE AREA WILL PRODUCE SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN AND THE POSSIBILITY OF FLASH FLOODING INTO THE MIDDLE OF THE WEEK. THIS MORNINGS WV SAT IMAGERY AND UPPER LEVEL ANALYSES SHOW AN AREA OF LOW PRESSURE AT 500MB OVER THE RED RIVER. LAST NIGHTS SOUNDINGS SHOW DEEP BOUNDARY LAYER MOISTURE AT DRT...CRP...AND FWD AND MODEL SOUNDINGS SHOW THIS MOISTURE INCREASING THROUGH THE MORNING. PWS WILL BE OVER TWO INCHES FOR MUCH OF THE CWA. FORECAST MODELS ARE IN GOOD AGREEMENT OF UPPER LOW MOVING SLOWLY TO THE SOUTHWEST THROUGH THE DAY TODAY. THIS WILL ACT AS A TRIGGER FOR SHOWERS AND THUNDERSTORMS TODAY. WITH THE TROPICAL LIKE MOISTURE IN PLACE OVER THE CWA THERE WILL BE HEAVY RAIN WITH SOME STORMS. RAINFALL TOTALS OF ONE TO THREE INCHES ARE LIKELY WITH AMOUNTS OF SIX TO EIGHT INCHES POSSIBLE IN ISOLATED LOCATIONS. THE GROUND OVER MOST OF THE AREA IS SATURATED FROM RECENT RAIN AND ADDITIONAL RAINFALL WILL QUICKLY BECOME RUNOFF AND MAY LEAD TO FLASH FLOODING. HAVE ISSUED FLASH FLOOD WATCH FOR THE EASTERN HALF OF THE CWA UNTIL 10PM THIS EVENING. HOWEVER...MODELS SHOW CONTINUED HIGH POPS AND DEEP MOISTURE BEYOND TONIGHT AND WE MAY BE ISSUING FLASH FLOOD WATCHES INTO THE MIDDLE OF THE WEEK. GFS TAKES THE UPPER LOW INTO NORTHERN MEXICO BY THURSDAY AND ITS INFLUENCE WILL BEGIN TO DECREASE. AS IT CONTINUES TO MOVE FARTHER TO THE WEST AND THE MOISTURE IN THE AREA DECREASES POPS WILL DROP TO THE SLIGHT CHANCE CATEGORY BY FRIDAY. THIS WILL LEAD TO AN INCREASE IN SUNSHINE AND HIGHER MAX TEMPS FOR THE END OF THE WEEK AND INTO THE WEEKEND. && .PRELIMINARY POINT TEMPS/POPS... AUSTIN CAMP MABRY 88 73 87 73 86 / 70 50 60 60 70 AUSTIN BERGSTROM INTL AIRPORT 87 71 87 72 86 / 70 50 60 60 70 DEL RIO INTL AIRPORT 90 75 92 73 90 / 10 30 40 60 60 SAN ANTONIO INTL AIRPORT 88 74 88 74 87 / 60 50 50 60 60 && .EWX WATCHES/WARNINGS/ADVISORIES... FLASH FLOOD WATCH THROUGH THIS EVENING FOR THE FOLLOWING ZONES: ATASCOSA...BANDERA...BASTROP...BEXAR...BLANCO...BURNET...CALDWELL... COMAL...DE WITT...DIMMIT...FAYETTE...FRIO...GILLESPIE...GONZALES... GUADALUPE...HAYS...KARNES...KENDALL...KERR...LAVACA...LEE...LLANO... MEDINA...TRAVIS...WILLIAMSON...WILSON. && 06/02
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 502 AM CDT MON JUL 2 2007 TXZ171>173-183>194-202>209-217>225-228-031015- 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- 502 AM CDT MON JUL 2 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE...TODAY AND TONIGHT... THERE IS A GOOD CHANCE OF SHOWERS AND THUNDERSTORMS WITH LOCALLY HEAVY RAINFALL THROUGH THIS EVENING OVER MUCH OF THE EASTERN HILL COUNTRY AND ALL SOUTH CENTRAL TEXAS. FLASH FLOODING IS POSSIBLE AS SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN TRAIN ACROSS THE AREA FROM THE COASTAL PLAINS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY... THE CHANCE FOR SHOWERS AND THUNDERSTORMS WITH LOCALLY HEAVY RAINFALL AND FLASH FLOODING WILL CONTINUE THROUGH THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED TODAY THROUGH THURSDAY.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
633 AM CDT MON JUL 02 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0600 AM FLASH FLOOD HALLETTSVILLE 29.44N 96.94W
07/02/2007 LAVACA TX LAW ENFORCEMENT
HWY 77S FROM HALLETTSVILLE TO VICTORIA CLOSED.
0600 AM FLASH FLOOD E YOAKUM 29.29N 97.15W
07/02/2007 LAVACA TX LAW ENFORCEMENT
HIGHWAY 111 EAST OF YOAKUM CLOSED.
0600 AM FLASH FLOOD CUERO 29.09N 97.29W
07/02/2007 DEWITT TX LAW ENFORCEMENT
SEVERAL ROADS CLOSED COUNTY WIDE.
&&
DCThe Austin/San Antonio radar (KEWX), 110 km away, was scanning. The volume nearest the first event began at 14:58 UTC.
1 flash flood. Local standard time, as filed.
Thunderstorms produced a general 1 to 2 inch rainfall over Karnes County, with up to 4 inches southwest of Kenedy. FM99 and SH72 were closed due to flash flooding through the early afternoon.
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, July 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: 49323.