Area Forecast Discussion
Issued by NWS Houston/Galveston, TX

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000
FXUS64 KHGX 240520
AFDHGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1120 PM CST TUE DEC 23 2014

.DISCUSSION...
SEE THE 06Z AVIATION FORECAST DISCUSSION BELOW.

40

&&

.AVIATION...
THE COMBINATION OF A TIGHT SURFACE PRESSURE GRADIENT AND COLD AIR
ADVECTION WILL KEEP BREEZY SURFACE WINDS IN PLACE AT KGLS. AFTER
SUNRISE...BREEZY CONDITIONS WILL LIKELY REDEVELOP AT THE INLAND
SITES BY AROUND 15Z. AS HIGH PRESSURE BUILDS INTO THE SOUTHERN
PART OF THE STATE...THE WINDS WILL DIMINISH DURING THE MID AND
LATE PART OF WEDNESDAY AFTERNOON.

OTHERWISE...VFR CONDITIONS WILL PERSIST THROUGH THE PERIOD.

40

&&

.PREV DISCUSSION... /ISSUED 851 PM CST TUE DEC 23 2014/

UPDATE...
SEE THE EVENING UPDATE.

DISCUSSION...
A COLD FRONT EXTENDED FROM CENTRAL MS ACROSS THE WESTERN GULF OF
MEXICO. SURFACE HIGH PRESSURE OVER THE INTER-MOUNTAIN WEST WILL
BUILD SOUTHEAST. THE TIGHT PRESSURE GRADIENT IN PLACE FOR MUCH THE
AFTERNOON AND EVENING HAS BEGUN TO RELAX AND WINDS HAVE DECREASED.
NO NEED TO CARRY THE WIND ADVISORY ANY LONGER SO WILL ALLOW IT TO
EXPIRE AT 900 PM. STILL MONITORING THE POSSIBILITY OF LOW WATER
IN GALVESTON BAY BUT THUS FAR...WATER LEVELS ARE NEAR NORMAL
VALUES. SKIES ARE EXPECTED TO CLEAR AS THE NIGHT PROGRESSES SO NO
CHANGES TO THE SKY GRIDS. MIN TEMPS MIGHT BE A BIT COOL BUT WITH
CLEARING SKIES...WINDS DECOUPLING AND DRY AIR ADVECTING INTO THE
REGION... AM HESITANT TO MAKE A CHANGE. REST OF THE FCST LOOKS TO
BE IN GOOD SHAPE. LOOKING AHEAD...SUNDAY IS LOOKING RATHER DREARY
WITH COOL TEMPERATURES AND PERIODS OF LIGHT RAIN. 43

&&

.PRELIMINARY POINT TEMPS/POPS...
COLLEGE STATION (CLL)      37  53  35  61  48 /  10   0   0   0  10
HOUSTON (IAH)              39  54  35  64  51 /  10   0   0   0  10
GALVESTON (GLS)            44  55  44  62  57 /  10   0   0   0  10

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...SMALL CRAFT ADVISORY UNTIL 6 AM CST WEDNESDAY FOR THE FOLLOWING
     ZONES: GALVESTON BAY...MATAGORDA BAY...WATERS FROM FREEPORT
     TO THE MATAGORDA SHIP CHANNEL OUT 20 NM...WATERS FROM HIGH
     ISLAND TO FREEPORT OUT 20 NM.

     GALE WARNING UNTIL 6 AM CST WEDNESDAY FOR THE FOLLOWING ZONES:
     WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL 20 NM TO
     60 NM...WATERS FROM HIGH ISLAND TO FREEPORT 20 TO 60 NM.

&&

$$

DISCUSSION...43
AVIATION/MARINE...40



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