478
FXUS64 KHGX 071747
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
1147 AM CST Sun Dec 7 2025

...New AVIATION...

.KEY MESSAGES...

- Patchy, but dense, fog will be possible across much of the area
  tonight into Sunday morning.

- Cold front moves through the area Sunday ushering in chillier
  weather to start the work week.

- Hazardous marine conditions with winds of 20-25 kt with gusts to
  30-35 kt possible Sunday afternoon into Monday morning.

- Monitoring the potential for another cold front towards the end
  of the work week.

&&

.DISCUSSION...
Issued at 1044 PM CST Sat Dec 6 2025

Moist onshore flow has led to the development of patchy, dense fog
across much of the area. A Dense Fog Advisory is out through 7am
for most areas along and south of I-10, and then along and east of
I-45. As the night unfolds, the Brazos Valley may get included in
the Advisory. Conditions will improve through the morning, but the
Advisory may get extended along the coast into the mid-morning
hours.

A dry cold front will push through the coastal waters late Sunday
afternoon ushering in cooler, drier conditions. Ahead of the
front, we will likely rise into the low to mid 70s across much of
the area, but we will be cooling down Sunday night down into the
upper 30s to mid 40s. And add in a breezy north wind, conditions
will feel even chillier. This chilly weather will continue into
the work week with highs in the mid 50s to low 60s on Monday and
overnight lows into the mid 30s to low 40s Monday night (with some
areas in the Piney Woods dropping to near freezing).

A gradual warm-up is expected through midweek as winds become
southerly with highs in the mid to upper 60s on Tuesday, low to
mid 70s on Wednesday, and then some low 80s possible returning by
Thursday. Our next cold front may arrive late Thursday into
Friday, but at this point it is also looking like a dry front like
Sunday`s.

Fowler

&&

.AVIATION...
(18Z TAF Issuance)
Issued at 1119 AM CST Sun Dec 7 2025

Frontal boundary working its way through the Brazos Valley.
CLL/UTS at MVFR as clouds linger behind the boundary. All other
sites at IFR/LIFR. Low CIGs and/or VSBYs will continue through
early afternoon for IAH/HOU/SGR and coastal terminals. VFR
conditions will follow the FROPA with the exception of a brief
period of MVFR CIGs between 00Z and 05Z. NW winds will develop
behind the front with gusts of 25-30 knots expected. Winds relax
early Monday morning.

Bailey

&&

.MARINE...
Issued at 1044 PM CST Sat Dec 6 2025

Dense fog will continue to be possible through the morning hours
in the Bays and nearshore waters with some patchy fog possibly
lingering into the mid-morning or late morning hours. Light
onshore winds will prevail through the early afternoon, but a cold
front will usher in strong northerly winds (sustained 20-25 kt
with gusts to 30-35 kt) starting in the late afternoon through
Monday morning. These winds will cause rough bay waters and seas
to climb to 4-6ft in the nearshore waters and to 5-9ft in the
offshore waters. A Small Craft Advisory is in effect for all
waters beginning at 4pm Sunday through Noon Monday. Light
northeasterly winds are expected to develop Monday night with
light onshore winds developing Tuesday that continue through
midweek. These onshore winds will lead to an increase in moisture,
so the return of fog is possible by midweek.

Fowler

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)  67  38  58  35 /   0   0   0   0
Houston (IAH)  73  44  61  40 /  10   0   0   0
Galveston (GLS)  70  50  60  51 /  20   0   0   0

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...Wind Advisory from 6 PM this evening to 6 AM CST Monday for
     TXZ436>439.

GM...Small Craft Advisory from 4 PM this afternoon to noon CST Monday
     for GMZ330-335-350-355-370-375.

&&

$$

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