FXUS64 KHGX 152110
AFDHGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
310 PM CST TUE DEC 15 2009

.DISCUSSION...
BROAD AREA OF RAIN WITH EMBEDDED CONVECTION ASSOCIATED WITH
SURFACE AND 850 MB COLD FRONT SLOWLY SAGGING SOUTH ACROSS THE
MARINE WATERS. SOME BREAKS IN OVERCAST NOTED OVER NORTHERN ZONES
THIS AFTERNOON BUT THIS SHOULD BE SHORT LIVED AS MID LEVEL CLOUD
COVER INCREASES AND THICKENS TONIGHT. HIGH PRESSURE WILL CONTINUE
TO BRING COLDER AIR ACROSS OUR REGION OVERNIGHT WITH READINGS
EXPECTED TO DROP TO THE 30S NORTHERN ZONES TOWARD MORNING. WINDS
NEAR THE COAST WILL REMAIN RATHER BRISK. PRESSURE GRADIENT ACROSS
COASTAL REGION WILL REMAIN TIGHT WITH COASTAL TROUGH/LOW
DEVELOPING IN ADVANCE OF AN UPPER LEVEL DISTURBANCE. TRAJECTORY OF
SURFACE LOW WILL DETERMINE HOW MUCH PRECIPITATION OUR REGION WILL GET.
MODELS DO AGREE IN BRINGING GOOD RAIN CHANCES NEAR THE COAST INCREASING
FROM SW TO NE WEDNESDAY TO THURSDAY. RAIN CHANCES DIMINISHING
THURSDAY NIGHT AS SURFACE LOW MOVES ENE TO THE NE GULF. CLOUD
COVER WILL HANG ON OVER REGION THE NEXT SEVERAL DAYS WITH LOWER
CEILINGS SOUTHERN PORTIONS. WE SHOULD SEE DECREASING CLOUDINESS
THURSDAY NIGHT TO FRIDAY WITH UPPER LEVEL FLOW BECOMING MORE
NORTHWEST RESULTING IN LOWER PWATS. GFS INDICATE HIGH PRESSURE
RIDGE PREVAILING OVER CWFA THIS COMING WEEKEND. TEMPERATURES WILL
REMAIN FOR THE MOST PART ON THE COOL SIDE THE NEXT SEVERAL DAYS.
37

&&

.PRELIMINARY POINT TEMPS/POPS...
COLLEGE STATION (CLL)      37  54  39  54  39 /  10  10  20  10  10 
HOUSTON (IAH)              40  54  40  53  40 /  20  20  40  30  10 
GALVESTON (GLS)            48  56  48  55  45 /  30  30  50  40  20 

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...SMALL CRAFT ADVISORY UNTIL 6 AM CST WEDNESDAY FOR THE FOLLOWING 
     ZONES: GALVESTON BAY...MATAGORDA BAY.

     SMALL CRAFT SHOULD EXERCISE CAUTION FROM WEDNESDAY MORNING 
     THROUGH LATE WEDNESDAY NIGHT FOR THE FOLLOWING ZONES: 
     GALVESTON BAY...MATAGORDA BAY.

     SMALL CRAFT ADVISORY UNTIL 6 PM CST THURSDAY 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.

&&

$$

DISCUSSION...37