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National Weather Service Forecast Discussion

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223
FXUS64 KHGX 311858
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
1258 PM CST Wed Dec 31 2025

...New DISCUSSION, MARINE...

.KEY MESSAGES...


- Abnormally low water levels in Galveston Bay will continue
  through at least Thursday`s low tide cycle. Continued low water
  is likely due to the very low astronomical tides occurring.


&&

.DISCUSSION...
Issued at 1227 PM CST Wed Dec 31 2025

A quiet weather pattern will kick off the new year as high
pressure sets the stage for a warming trend through the rest of
the week. Highs are looking to reach into the 80s for much of the
area on Friday.

A weak Pacific front will move through the area and bring slightly
cooler temperatures through the weekend. Highs will generally be
in the 70s.

With the increase in heat and humidity, will need to monitor for
sea fog ahead of this next front. As mentioned by previous
forecaster, surface winds will be out of the SW, and SW winds are
generally not ideal for fog development.

&&

.AVIATION...
(12Z TAF Issuance)
Issued at 435 AM CST Wed Dec 31 2025

VFR conditions prevail with winds becoming southwesterly to
south-southwesterly around 5-7 kt later this morning, then
becoming light and variable again this evening.

Batiste

&&

.MARINE...
Issued at 1227 PM CST Wed Dec 31 2025

Poor marine conditions continue for Galveston Bay with the low
water situation showing no improvement as we head into a stretch
of very low astronomical tides. The low water advisory has been
extended through Thursday, and may need to continue even later.
Indeed, the decreasing astronomical tides may eventually even
require a low water advisory for upper portions of Matagorda Bay,
though confidence in this scenario is lower than on Galveston Bay.

Light and variable winds tonight will gradually become more
southwesterly through Wednesday, continuing through Friday.
Eventually, humidity will increase enough that patchy fog will be
possible during the overnight hours Thursday night and Friday
night, but there is still considerable uncertainty in how
significant fog development will be. The southwesterly fetch is
generally a poor one for sea fog development, but this recent cold
blast has cooled the bays and nearshore waters considerably. The
details will continue to be refined through the week on what the
intensity of any fog development may be.

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)  67  39  73  59 /   0   0   0   0
Houston (IAH)  66  42  73  61 /   0   0   0   0
Galveston (GLS)  61  54  69  63 /   0   0   0   0

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...None.
GM...Low Water Advisory until 6 PM CST Thursday for GMZ335.

&&

$$

DISCUSSION...Bailey
AVIATION...Batiste
MARINE...Bailey

NWS HGX Office Area Forecast Discussion