FXUS64 KHGX 241553
AFDHGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
953 AM CST THU DEC 24 2009

.DISCUSSION...
LINE OF SHRA/TSTMS NOW WELL EAST OF THE REGION AND SOME LOCATIONS
WILL SEE A FEW HOURS OF SUN COMPLIMENTS OF DRY SLOTTING. BUT
COLDER AIR AND WRAP AROUND CLOUDINESS NOW ON THE CWA'S DOORSTEP
AND WILL BE FILTERING IN FOR THE REMAINDER OF THE DAY. EXPECT
FALLING TEMPS AND WINDY CONDITIONS THIS AFTN. CURRENT FCST IS ON
TRACK. WILL JUST UPDATE TO REMOVE MOST OF THE MORNING'S POPS AND
TWEAK GRIDS TO CURRENT OBS. MARINE FCSTER IS GOING TO UPGRADE SCA
TO A GALE WARNING FOR THE GULF WATERS. FREQUENT GUSTS TO 30-40KTS
HAVE STARTED ALONG THE MID COAST AND ANTICIPATE SPEEDS TO INCREASE
HERE AS WELL. 47

&&

PREV DISCUSSION... /ISSUED 918 AM CST THU DEC 24 2009/ 
AVIATION... 
FOR THE KIAH AND KHOU 3 HOUR UPDATE...TWEAKED THE WINDS A BIT TO
ACCOUNT FOR TIMING ISSUES. SOME AREA OBSERVATIONS WERE ALREADY
GUSTING UP TO 24 KNOTS OR SO. LOOKS LIKE THE WINDS WILL REACH
THEIR PEAK DURING THE AFTERNOON. EVEN WITH SUNSET...THEY WILL THEN
BE SLOW TO DIMINISH GIVEN THE PRESSURE GRADIENT ISSUES.

ALSO DID AN AMENDMENT FOR MOST OF THE OTHER AREA TERMINAL SITES.
IN THE NORTH THERE WERE MVFR CEILINGS FROM CLOUDS WRAPPING AROUND
THE STORM CENTER. THESE WILL PROBABLY BE OUT OF THE KCLL AND KUTS
SITES BY EARLY AFTERNOON AND MAY AFFECT KCXO AND METRO AIRPORTS. 40

&&

.PRELIMINARY POINT TEMPS/POPS...
COLLEGE STATION (CLL)      50  29  51  29  53 /  20  10  10  10  10 
HOUSTON (IAH)              58  32  51  33  55 /  10  10  10  10  10 
GALVESTON (GLS)            61  38  50  41  57 /  10  10  10  10  20 

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...WIND ADVISORY UNTIL 6 PM CST THIS EVENING FOR THE FOLLOWING 
     ZONES: AUSTIN...BRAZORIA...BRAZOS...BURLESON...CHAMBERS...
     COLORADO...FORT BEND...GALVESTON...GRIMES...HARRIS...
     HOUSTON...JACKSON...LIBERTY...MADISON...MATAGORDA...
     MONTGOMERY...POLK...SAN JACINTO...TRINITY...WALKER...
     WALLER...WASHINGTON...WHARTON.

GM...SMALL CRAFT ADVISORY UNTIL MIDNIGHT CST TONIGHT FOR THE 
     FOLLOWING ZONES: GALVESTON BAY...MATAGORDA BAY.

     SMALL CRAFT ADVISORY UNTIL NOON CST TODAY FOR THE FOLLOWING 
     ZONES: WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL 
     20 NM TO 60 NM...WATERS FROM FREEPORT TO THE MATAGORDA SHIP 
     CHANNEL OUT 20 NM...WATERS FROM HIGH ISLAND TO FREEPORT 20 
     TO 60 NM...WATERS FROM HIGH ISLAND TO FREEPORT OUT 20 NM.

     GALE WARNING UNTIL MIDNIGHT CST TONIGHT FOR THE FOLLOWING ZONES: 
     WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL 20 NM TO 
     60 NM...WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL 
     OUT 20 NM...WATERS FROM HIGH ISLAND TO FREEPORT 20 TO 60 
     NM...WATERS FROM HIGH ISLAND TO FREEPORT OUT 20 NM.

&&

$$