Flash Flood Warning 183, NWS Austin/San Antonio, TX

COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
820 PM CDT SAT OCT 17 1998

MSTR CONTINUES TO ADVECT FM MADELINE ACRS MEXICO INTO TX. THIS MSTR
COMBINED WITH THE SFC FNT TO THE NORTH AND UPR DYNAMICS TO GENERATE
COPIOUS RAIN/TSTMS TDA JUST NORTH OF OUR CWA. NEVERTHELESS...
SCATTERED SHOWERS AND THUNDERSTORMS HAVE AFFECTED MAINLY THE CNTRL
AND ERN CWA TDA IN PART DUE TO THE RRQ OF THE UPR JET STREAK. THIS
STREAK IS PROGD BY ALL MODELS TO LIFT NEWD. THE AVN IS PREFERRED
ATTM SINCE COMPARISON WITH LAPS INDICATES THAT IT IS BETTER THAN NGM
AND ETA IN FCSTG THE SFC PRES FIELD OVR THE WRN CWA. THE AVN PROGD A
SFC LOW TO DVLP FM 00 TO 06 UTC OVR THE WRN CWA AND LAPS PRES PTNS
INDICATES SUCH. THUS EXPECT PCPN TO DVLP OVR THE WRN CWA TNGT.
WSR-88D IS BEGINNING TO INDICATE SUCH. AVN PROGS THE WRN CWA LOW TO
DMSH YET DRAGS THE SFC FNT INTO THE CWA SUN...AND KEEPS IT
QUASI-STATIONARY...WHICH WL ENHANCE CHANCE FOR SHOWERS AND
THUNDERSTORMS. SFC THETA-E VALUES ARE ALREADY GREATER THAN THAT
PROGD BY THE NGM/ETA/AVN. HIGH LOW LVL AND MID LVL MSTR WL LIKELY
RESULT IN COPIOUS RAINS OVR PTNS OF THE CWA SUN. NO CHGS TO CURRENT
PERIOD ATTM...HWR SUGGEST MENTION OF PSBL HVY RAIN IN THE ZNS FOR
SUN...AND CONSIDER PSBL ISSUANCE OF FFA.

87

TXZ171>173-183>194-202>209-217>225-228-181100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
500 PM CDT SAT OCT 17 1998

A FLOOD AND FLASH FLOOD WATCH IS IN EFFECT TONIGHT THROUGH SUNDAY FOR
THE TEXAS HILL COUNTRY AND ALL OF SOUTH CENTRAL TEXAS.

A SERIES OF UPPER LEVEL DISTURBANCES...MOISTURE FROM EASTERN PACIFIC
TROPICAL SYSTEMS...GULF MOISTURE...AND A SLOW MOVING COLD FRONT WILL
INTERACT TO PRODUCE WIDESPREAD SHOWERS AND THUNDERSTORMS ACROSS THE
HILL COUNTRY AND SOUTH CENTRAL TEXAS THROUGH SUNDAY.  ADDITIONAL
RAINFALL AMOUNTS OF UP TO 5 INCHES CAN BE EXPECTED.

PERSONS IN OR NEAR THE WATCH AREA ARE URGED TO CHECK PREPAREDNESS
REQUIREMENTS...KEEP INFORMED AND BE READY TO TAKE ACTION IF HEAVY
RAIN OR FLOODING IS OBSERVED OR A WARNING IS ISSUED.  MOTORISTS
SHOULD NOT ATTEMPT TO DRIVE THROUGH FLOODED OR LOW LYING AREAS WHERE
WATER IS FLOWING OR OF AN UNKNOWN DEPTH.  KEEP CHILDREN AWAY FROM
STORM DRAINS AND STREAMS.

THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF
THE ZONE FORECASTS...SHORT TERM FORECAST...WATCHES...WARNINGS AND
ADVISORIES.  THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED
ONLY IF UNEXPECTED HAZARDOUS WEATHER DEVELOPS OR IF EXPECTED
HAZARDOUS WEATHER NO LONGER IS FORECAST TO DEVELOP.

ADDITIONAL WEATHER INFORMATION IS AVAILABLE ON THE NATIONAL WEATHER
SERVICE CENTRAL AND SOUTH CENTRAL TEXAS HOME PAGE OF THE INTERNET
WORLD WIDE WEB AT WWW.SRH.NOAA.GOV/EWX.  TIMELY DELIVERY OF DATA AND
PRODUCTS FROM THIS SERVER THROUGH THE INTERNET IS NOT GUARANTEED...
UNLIKE DATA AND PRODUCTS DELIVERED FROM THE OFFICIAL NATIONAL WEATHER
SERVICE SOURCES.

THE OFFICIAL SOURCE OF NATIONAL WEATHER SERVICE DATA AND PRODUCTS IS
THE NOAA WEATHER RADIO...NOAA WEATHER WIRE...FAMILY OF SERVICES
AND EMWIN.

THE VOICE OF THE NATIONAL WEATHER SERVICE...NOAA WEATHER RADIO...
OPERATING ON A FREQUENCY BETWEEN 162.400 MHZ AND 162.550 MHZ.

NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE:
SOUTHWEST TEXAS    FROM MIDLAND            LBBSPSMAF...WWUS35 KMAF
CONCHO VALLEY      FROM SAN ANGELO         LBBSPSSJT...WWUS35 KSJT
NORTH TEXAS        FROM FORT WORTH         FTWSPSFTW...WWUS35 KFTW
SOUTHEAST TEXAS    FROM HOUSTON/GALVESTON  SATSPSHOU...WWUS35 KHOU
COASTAL BEND/      FROM CORPUS CHRISTI     SATSPSCRP...WWUS35 KCRP
RIO GRANDE PLAINS

TXZ171>173-183>194-202>209-217>225-228-181100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
500 PM CDT SAT OCT 17 1998

A FLOOD AND FLASH FLOOD WATCH IS IN EFFECT TONIGHT THROUGH SUNDAY FOR
THE TEXAS HILL COUNTRY AND ALL OF SOUTH CENTRAL TEXAS.

A SERIES OF UPPER LEVEL DISTURBANCES...MOISTURE FROM EASTERN PACIFIC
TROPICAL SYSTEMS...GULF MOISTURE...AND A SLOW MOVING COLD FRONT WILL
INTERACT TO PRODUCE WIDESPREAD SHOWERS AND THUNDERSTORMS ACROSS THE
HILL COUNTRY AND SOUTH CENTRAL TEXAS THROUGH SUNDAY.  ADDITIONAL
RAINFALL AMOUNTS OF UP TO 5 INCHES CAN BE EXPECTED.

PERSONS IN OR NEAR THE WATCH AREA ARE URGED TO CHECK PREPAREDNESS
REQUIREMENTS...KEEP INFORMED AND BE READY TO TAKE ACTION IF HEAVY
RAIN OR FLOODING IS OBSERVED OR A WARNING IS ISSUED.  MOTORISTS
SHOULD NOT ATTEMPT TO DRIVE THROUGH FLOODED OR LOW LYING AREAS WHERE
WATER IS FLOWING OR OF AN UNKNOWN DEPTH.  KEEP CHILDREN AWAY FROM
STORM DRAINS AND STREAMS.

THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF
THE ZONE FORECASTS...SHORT TERM FORECAST...WATCHES...WARNINGS AND
ADVISORIES.  THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED
ONLY IF UNEXPECTED HAZARDOUS WEATHER DEVELOPS OR IF EXPECTED
HAZARDOUS WEATHER NO LONGER IS FORECAST TO DEVELOP.

ADDITIONAL WEATHER INFORMATION IS AVAILABLE ON THE NATIONAL WEATHER
SERVICE CENTRAL AND SOUTH CENTRAL TEXAS HOME PAGE OF THE INTERNET
WORLD WIDE WEB AT WWW.SRH.NOAA.GOV/EWX.  TIMELY DELIVERY OF DATA AND
PRODUCTS FROM THIS SERVER THROUGH THE INTERNET IS NOT GUARANTEED...
UNLIKE DATA AND PRODUCTS DELIVERED FROM THE OFFICIAL NATIONAL WEATHER
SERVICE SOURCES.

THE OFFICIAL SOURCE OF NATIONAL WEATHER SERVICE DATA AND PRODUCTS IS
THE NOAA WEATHER RADIO...NOAA WEATHER WIRE...FAMILY OF SERVICES
AND EMWIN.

THE VOICE OF THE NATIONAL WEATHER SERVICE...NOAA WEATHER RADIO...
OPERATING ON A FREQUENCY BETWEEN 162.400 MHZ AND 162.550 MHZ.

NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE:
SOUTHWEST TEXAS    FROM MIDLAND            LBBSPSMAF...WWUS35 KMAF
CONCHO VALLEY      FROM SAN ANGELO         LBBSPSSJT...WWUS35 KSJT
NORTH TEXAS        FROM FORT WORTH         FTWSPSFTW...WWUS35 KFTW
SOUTHEAST TEXAS    FROM HOUSTON/GALVESTON  SATSPSHOU...WWUS35 KHOU
COASTAL BEND/      FROM CORPUS CHRISTI     SATSPSCRP...WWUS35 KCRP
RIO GRANDE PLAINS