Area Forecast Discussion
Issued by NWS Houston/Galveston, TX

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FXUS64 KHGX 100522
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
1122 PM CST Fri Dec 9 2016

.AVIATION...
VFR conditions expected for the 18 hours or so with some 5-10k ft
cigs overhead. Look for llvl moisture to increase later in the day
Saturday as onshore winds resume. Would anticipate a gradual
lowering in cigs going into tomorrow night...eventually down into
MVFR territory. 47

&&

.PREV DISCUSSION... /ISSUED 945 PM CST Fri Dec 9 2016/
The main question tonight will be who will fall to freezing or
slightly below and for how long. A thick stratocu deck with light
easterly winds providing both weak surface mixing and also the
catalyst for these mid-level clouds per mid-upper westerly flow
providing a more efficient isentropic upglide situation. Clouds
and wind will work against the interior experiencing a widespread
freeze. Thinning clouds across the north would allow for a couple
of near sunrise hours of subfreezing T readings. Meager confidence
on the extent of any freeze but the probability of 30-32 F minimum
temperatures will be highest across the northeastern CWA. Because
of this uncertainly of the extent of early Saturday morning cloud
cover have decided to hold off on issuing a Freeze Warning at this
time. Clearing pre-sunrise skies may prompt a short fuse Freeze
Warning over the northeast forecast area. Tomorrow afternoon will
warm into the mid to upper 50s/around 60 at coast as onshore winds
return by late day. Increasing early week low level moisture will
maintain warm and mild conditions (despite a weak Monday cold
fropa) through mid week. 31

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)      33  55  50  72  60 /   0  10  30  30  10
Houston (IAH)              36  55  51  74  64 /   0  10  20  30  30
Galveston (GLS)            45  60  60  71  66 /   0  10  10  20  30

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...Small Craft Advisory until 3 AM CST Saturday for the following
     zones: Waters from Freeport to the Matagorda Ship Channel
     from 20 to 60 NM...Waters from High Island to Freeport from
     20 to 60 NM.

&&

$$

Discussion...99



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