Area Forecast Discussion
Issued by NWS Houston/Galveston, TX

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FXUS64 KHGX 120850
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
250 AM CST Tue Dec 12 2017

.DISCUSSION...
It the wake of this morning`s cold front, today`s high
temperatures will be in the low to mid 60s, some 5 to
10 degrees cooler that yesterday`s highs that were in
the low to mid 70s. North winds will generally be in a
10 to 15 mph range (maybe occasionally gusty, especially
near the coast and offshore) with decreasing speeds as
the afternoon progresses when high pressure begins to
ridge into the area from the west. Weather stays on the
quiet side (dry with temperatures close to normal) ahead
of the area`s next cold frontal passage on Thursday/
Thursday evening. While we continue to see some run-to-run
model inconsistency in regards to the weekend forecast,
have gone ahead and raised Sunday`s rain chances just a
little in response to better/wetter model agreement with
the most recent run. When we start to see better
consistency in these wetter model solutions, do not be
surprised if we eventually carry higher rain chances in
the extended forecast.  42
&&

.AVIATION...
Breezy north winds during the mid morning thru afternoon hours will
be about the only aviation concern today. Otherwise, VFR for the
next 30+ hours. 47

&&

.MARINE...
Northerly winds should pick up in the wake of a passing cold front
early this morning. We may see speeds briefly hit SCA criteria for a
short duration this morning, but think 15-20kt winds should many
prevail into the afternoon so will keep the caution flags going for
now and keep an eye on things. Winds/seas diminish later tonight and
Wed followed by the next front later Thurs. Looks like a SCA may be
required Thurs night in its wake.  Onshore winds resume by early Sat
and rapidly increase as pressures fall across the Plains. Seas build
and warmer/deeper moisture overrides the cool nearshore shelf waters.
Sea fog may become an issue until the next stronger front clears the
coast later on Sunday. 47

&&

.FIRE WEATHER...
Elevated fire weather conditions are expected today with RH values
bottoming out between 25-30% along with increasing wind speeds.
Gusts between 15-20 mph will be possible from mid morning to
mid/late afternoon. 47

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)      64  35  65  42  65 /   0   0   0  10  10
Houston (IAH)              65  37  63  44  67 /   0   0   0  10  10
Galveston (GLS)            62  46  61  53  66 /   0   0   0  10  10

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...SMALL CRAFT SHOULD EXERCISE CAUTION through this 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.

&&

$$

42/47



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