Area Forecast Discussion
Issued by NWS Houston/Galveston, TX

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FXUS64 KHGX 071751
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
1151 AM CST Wed Dec 7 2016

.AVIATION...
Fog/low clouds hanging in across SE TX this afternoon, but condi-
tions are slowly improving. Will be keeping IFR/MVFR CIGS in for
most sites through the rest of the afternoon/evening hours ahead
of the cold front. Precipitation should start during the evening
across central to southern portions of the CWA as the WAA streng-
thens. At the very least...MVFR CIGS expected to persist in post
frontal timeframe. 41

&&

.PREV DISCUSSION... /ISSUED 1057 AM CST Wed Dec 7 2016/

Main forecast issue this morning is lingering fog over Galveston
Bay and portions of SE Harris County. Dense fog advisory has been
extended for Galveston Bay to 3PM this afternoon. Fog inland
should be eroding slowly today. Low cloud cover looks to continue
today which will limit day time heating. Max temperatures were
adjusted down a few degrees from mid/upper 60s to low/mid 60s. The
12Z LCH sounding shows quite a bit of low level moisture trapped
in the frontal inversion which will take some time to mix today.

The cold front is still on track to push through SE Texas tomorrow
AM. This will likely mean the highest temperatures will be in the
morning with temperatures slowly falling through the day. Gusty
northerly winds will certainly make it feel colder than the
temperature. Early look at 12Z guidance shows a tricky
determination of how far south freezing occurs Friday morning.
There will be strong cold advection but winds/clouds may also be a
factor. Possible that a few spots could even drop to freezing
Saturday morning.

Overpeck

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)      61  42  44  29  47 /  10  20  20  10   0
Houston (IAH)              64  49  50  33  49 /  10  40  20  10   0
Galveston (GLS)            64  55  56  41  51 /  10  50  30  10   0

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...Gale Watch from Thursday morning through Thursday evening for
     the following zones: Coastal waters from Freeport to the
     Matagorda Ship Channel out 20 NM...Coastal waters from High
     Island to Freeport out 20 NM...Waters from Freeport to the
     Matagorda Ship Channel from 20 to 60 NM...Waters from High
     Island to Freeport from 20 to 60 NM.

     Dense Fog Advisory until 3 PM CST this afternoon for the
     following zones: Galveston Bay.

&&

$$


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