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National Weather Service Forecast Discussion

089
FXUS64 KHGX 122354
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
554 PM CST Mon Jan 12 2026

...New AVIATION...

.KEY MESSAGES...

- Negative tide levels are anticipated in the bays this week, most
  significant late Wednesday-Thursday.

- Increasing cloud cover tonight and Tuesday ahead of an upper
  disturbance. Rain chances low, but not exactly nil.

- Two cold fronts are forecast to push through the area. One on
  Wednesday and another Friday night or Saturday.

&&

.DISCUSSION...
Issued at 101 PM CST Mon Jan 12 2026

Upper low near Baja will be kicking out and will move across the
state Tuesday and Tuesday night. Main thing we`ll see is increased
mid-upper cloudiness, though we cannot completely rule out an
isolated light rain shower or sprinkle.

This system will pass to our east Tuesday night followed by
decreasing cloudiness. Plenty of sun to start the day Wednesday,
along with a sw/w llvl flow, should allow for a quick warm-up
with temps topping out in the upper 60s-low 70s before the next
front moves into the region during the late morning and afternoon
hours.

Cooler, dry wx is again expected Thursday...a bit warmer
Fri...then another front Fri night or Sat. Dry nw flow aloft, with
ridging to our west and trof to our east, should keep this fropa
and weekend dry too. 47

&&

.AVIATION...
(00Z TAF Issuance)
Issued at 549 PM CST Mon Jan 12 2026

All sites at VFR with VFR prevailing through the period. BKN to
OVC mid-high level clouds will continue through the period. NE
winds will give way to more light and variable winds overnight.
Winds will become SW inland during the day Tuesday.

Bailey

&&

.MARINE...
Issued at 101 PM CST Mon Jan 12 2026

Mariners should anticipate negative tide levels through the week,
especially around low tide cycles in the central and northern
half of the the bays. Will maintain the Low Water Advisory in
place...though values might fall just short of criteria (-1 MLLW)
between nor an Tue. But with a Wednesday daytime frontal passage
pushing additional water out of the bay, it`ll probably be a
no-brainer and mariners should be cognizant of grounding risks.
Otherwise, light winds and low seas in place will build and SCAs
look through Tuesday. The next front is expected to push into the
waters Wednesday afternoon with increasing northwest and north
winds filling in behind it Wednesday night into Thursday along
with building seas. 47

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)  44  62  44  67 /  10  10   0   0
Houston (IAH)  44  62  47  68 /  10   0   0   0
Galveston (GLS)  52  60  53  68 /  10  10   0   0

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...None.
GM...Low Water Advisory until noon CST Tuesday for GMZ335.

&&

$$

DISCUSSION...47
AVIATION...Bailey
MARINE...47

NWS HGX Office Area Forecast Discussion