Area Forecast Discussion
Issued by NWS Houston/Galveston, TX

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FXUS64 KHGX 180145
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
845 PM CDT Tue Oct 17 2017

.DISCUSSION...
High pressure ridging into the area from the northeast will help to
keep the area clear and cool tonight. No significant changes are
being made on the evening update. 42
&&

.PREV DISCUSSION... /ISSUED 643 PM CDT Tue Oct 17 2017/

AVIATION...
VFR through period. A near calm overnight wind will wake up from
the east southeast by late morning. Still feel regional air mass is
still too dry to produce any significant Wednesday morning fog. 31

PREV DISCUSSION... /ISSUED 343 PM CDT Tue Oct 17 2017/

DISCUSSION...
Surface high pressure ridge overhead. Should see another cool
night with temperatures falling to below normal over the inland
areas.

Next system will move into Southeast Texas over the weekend. Both
the GFS and ECMWF are in better agreement with the upper level
system moving overhead Saturday night through Sunday night. A
frontal boundary will move through the forecast area and bring
decent chances for showers and thunderstorms. Still a bit unsure
about timing and coverage -- the 12Z model runs show an indication
that better coverage will occur along and ahead of the frontal
boundary on Sunday as compared to Saturday. However, a warm front
should move northward/inland and bring chances for showers and
thunderstorms. Will continue to monitor the potential for strong
to severe storms over the weekend. The models continue to show a
drying trend starting on Monday. 40

MARINE...
NE winds have diminished and should transition to the east on Wed. A
ridge of high pressure to the northeast and a weak area of low
pressure near the Yucatan will maintain a long e/ese fetch across
the northern Gulf this week. Pressure gradient will tighten and
speeds will increase later in the work week. Caution flags could be
needed. Seas and tide levels will also increase and we`ll need to
keep an eye on water levels as guidance still indicates the
possibility that they`ll exceed 3.3 feet on Friday. 47

FIRE WEATHER...
RH`s bottoming out in the 25-35% range today are expected to be a
bit higher on Wed then increase significantly on Thursday through
the end of the week. 47

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)      50  84  59  85  63 /   0   0   0  10  10
Houston (IAH)              53  84  63  85  66 /   0   0  10  10  10
Galveston (GLS)            67  82  72  84  74 /   0  10  10  10  10

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...NONE.
&&

$$

31/42



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