Flash Flood Warning 138, NWS Austin/San Antonio, TX

000 
WGUS74 KEWX 091552
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1047 AM CDT WED MAY 9 2007

TXC137-465-091800-
EDWARDS TX-VAL VERDE TX-
1047 AM CDT WED MAY 9 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 100 PM CDT FOR VAL
VERDE AND EDWARDS COUNTIES...

AT 1044 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT THUNDERSTORMS PRODUCING FLASH FLOODING OVER PARTS OF THE 
WARNED AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SEMINOLE 
CANYON STATE PARK...ROCKSPRINGS...PANDALE...LOMA ALTA... 
LANGTRY...JUNO AND CARTA VALLEY. 

A SEVERE THUNDERSTORM LOCATED NEAR PANDALE AT 1047 AM CDT WILL 
LIKELY PRODUCE SPOTTY RAINFALL AMOUNTS OF 2 INCHES AS IT TRACKS 
ACROSS NORTHERN VAL VERDE COUNTY. THUNDERSTORMS HAVE JUST MOVED EAST 
OF EDWARDS COUNTY AND HAVE LIKELY LEFT BEHIND TWO-HOUR RAINFALL 
TOTALS OF 1 TO 2 INCHES OVER THE EASTERN PORTIONS OF THE COUNTY. 
ADDITIONAL THUNDERSTORMS WILL LIKELY FORM NEAR THE RIO GRANDE BY 
NOON TO PRODUCE AN ADDITIONAL THREAT FOR FLASH FLOODING. 

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE THROUGH FLOODED 
AREAS...ESPECIALLY AT NIGHT. REPORT FLASH FLOODING TO THE NEAREST 
LAW ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

LAT...LON 3029 10175 3028 9977 3009 9977 3009 9998
      2985 10004 2963 10002 2963 10069 2937 10071
      2925 10077 2925 10076 2937 10101 2947 10108
      2953 10127 2962 10125 2963 10126 2958 10130
      2966 10131 2966 10137 2977 10142 2979 10176

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
642 AM CDT WED MAY 9 2007

.AVIATION...
MULTILEVEL CEILINGS THIS MORNING RANGING FROM LIFR TO MVFR WILL
GRADUALLY LIFT TODAY TO VFR BY 20Z. SCATTERED SHOWERS AND ISOLD
TSTMS WILL TRAVERSE THE REGION WITH VISIBILITIES FALLING BELOW 1
MILE. OUTSIDE OF THE THUNDERSTORMS AREAS, CEILINGS WILL AGAIN
LOWER TO MVFR LEVELS ARND 06Z.

&&

.PREV DISCUSSION... /ISSUED 431 AM CDT WED MAY 9 2007/

DISCUSSION...BUSY WEATHER DAY AND NIGHT AHEAD. UPPER LEVEL TROUGH
FINALLY WILL ENTER TEXAS THIS AFTERNOON WITH INCREASING SHOWERS
AND THUNDERSTORMS FROM WEST TO EAST. A FLASH FLOOD WATCH WAS
ISSUED FROM NOON THROUGH 7 AM THURSDAY FOR THE EDWARDS
PLATEAU..RIO GRANDE PLAINS AND MUCH OF THE TEXAS HILL COUNTRY.
SOILS ARE SATURATED FROM PREVIOUS RAINS ACROSS MUCH OF THE
WATCH AREA SO ADDITIONAL SIGNIFICANT RAINFALL COULD RESULT IN
RAPID RUNOFF AND RESULTANT FLASH FLOODING IN THE WATCH AREA.
COLDER AIR ALOFT WILL INCREASE THE RISK FOR LARGE HAIL AND
DAMAGING WINDS AS THE SQUALL PUSHES ACROSS LATE TODAY AND
TONIGHT. RAINS SHOULD BE TAPERING OFF FROM THE WEST BY LATE
THURSDAY INTO EARLY FRIDAY AS THE UPPER LOW MOVES SOUTHEAST
INTO THE NORTHWEST GULF. RIDGING ALOFT WILL BUILD ACROSS OVER
THE WEEKEND WITH DAYTIME TEMPERATURES RISING A FEW DEGREES.
ANOTHER WEAK WAVE WILL MOVE SOUTHEAST IN NORTHWEST FLOW ALOFT
MONDAY GIVING A SLIGHT CHANCE OF RAIN TO EASTERN SECTIONS...
OTHERWISE RIDGING ALOFT WILL DOMINATE THROUGH MIDWEEK WITH
SEASONAL TEMPERATURES.

&&

.PRELIMINARY POINT TEMPS/POPS...
AUSTIN CAMP MABRY              86  63  83  62  87 /  20  50  40  30  -
AUSTIN BERGSTROM INTL AIRPORT  83  62  82  58  86 /  20  50  40  30  -
DEL RIO INTL AIRPORT           82  64  87  64  87 /  50  50  -   -   -
SAN ANTONIO INTL AIRPORT       83  64  83  62  86 /  20  50  40  30  -

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH FROM NOON CDT TODAY THROUGH THURSDAY MORNING FOR
THE FOLLOWING ZONES: BANDERA...BLANCO...BURNET...DIMMIT...EDWARDS...
FRIO...GILLESPIE...KENDALL...KERR...KINNEY...LLANO...MAVERICK...
MEDINA...REAL...UVALDE...VAL VERDE...ZAVALA.

&&

02/06

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
526 AM CDT WED MAY 9 2007

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-
526 AM CDT WED MAY 9 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...TODAY AND TONIGHT
THERE IS A SLIGHT RISK OF SEVERE WEATHER THIS AFTERNOON THROUGH TONIGHT.
THE MAIN THREAT WILL BE LARGE HAIL. THE REPEATED NORTHWARD MOVEMENT
OF THE THUNDERSTORMS WILL PRODUCE LOCALLY HEAVY RAIN AND FLASH
FLOODING OVER THE HILL COUNTRY AND WESTERN SECTIONS OF SOUTH
CENTRAL TEXAS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THE RAINS AND THUNDERSTORMS WILL EXIT THE REGION ON FRIDAY.
OTHERWISE NO HAZARDOUS WEATHER IS EXPECTED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED LATER THIS AFTERNOON.