Area Forecast Discussion
Issued by NWS Houston/Galveston, TX

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000
FXUS64 KHGX 201756
AFDHGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1156 AM CST SAT DEC 20 2014

.AVIATION...
BASED ON CURRENT/PROGGED TRENDS HAVE DECIDED TO KEEP AT LEAST MVFR
CIG DECK IN FOR SE TX THRU TODAY...LOWERING THEM AGAIN TO IFR DUR-
ING THE EVENING HRS. THE DEEP SW FLOW ALOFT HELPING TO KEEP CLOUDS
LOCKED INTO PLACE (AT THE LOWER LEVELS) THE NEXT FEW DAYS IT WOULD
SEEM. PATCHY FOG/AREAS OF DRIZZLE ALSO POSSIBLE BY SUNRISE SUN (IN
PARTICULAR AT THE COAST). 41

&&

.PREV DISCUSSION... /ISSUED 1021 AM CST SAT DEC 20 2014/

UPDATE...
SE TX IS CURRENTLY LOCATED ON THE EDGE OF SURFACE HIGH PRESSURE
WHICH IS CENTERED OVER IL/KY. LOOKING AT AREA SOUNDINGS AND FCST
SOUNDINGS LOW-LEVEL MOISTURE IS TRAPPED UNDER AN INVERSION WHICH
IS PRODUCING WIDESPREAD LOW-LEVEL CLOUD COVER. THE FORECAST
PROBLEM TODAY CENTERS AROUND POSSIBLE BREAKS IN THE CLOUD COVER
LATER THIS AFTERNOON. GIVEN THE DEPTH OF THE MOIST LAYER AND SHORT
RANGE MODEL GUIDANCE...BELIEVE MOST OF THE AREA WILL REMAIN
CLOUDY THIS AFTERNOON. THEREFORE...HAVE LOWERED MAX TEMPS A
DEGREE OR SO. OTHER THAN THIS EDIT...NO OTHER CHANGES NEEDED AND
CURRENT FORECAST IS GOOD TO GO. 13

&&

.PRELIMINARY POINT TEMPS/POPS...
COLLEGE STATION (CLL)      56  43  59  48  69 /   0   0   0   0  10
HOUSTON (IAH)              58  45  60  48  70 /   0   0   0   0  10
GALVESTON (GLS)            57  51  59  53  67 /  10  10  10   0  10

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL 6 PM CST THIS EVENING
     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.

&&

$$



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