569
FXUS64 KHGX 251155
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
555 AM CST Tue Nov 25 2025

...New AVIATION...

.KEY MESSAGES...

- Isolated coastal showers and thunderstorms will continue through
  the night, but the overall severe weather threat has ended for
  this event.

- A stronger, reinforcing front pushes through Wednesday morning,
  bringing cooler and drier conditions just in time for Thanksgiving.

&&

.DISCUSSION...
Issued at 1012 PM CST Mon Nov 24 2025

After an active day across SE Texas, we are beginning to quiet
down as the line of storms exits to our east. Some isolated
showers inland and a few isolated thunderstorms will be possible
along the coast through midnight, but overall the severe/tornado
threat is over. The rain today has led to moist grounds, which
combined with light winds and clearing skies will lead to the
potential of patchy, dense fog developing overnight tonight
through early Tuesday morning.

Cooler, drier conditions are expected on Tuesday with high
temperatures in the mid to upper 70s north of I-10, and then the
low to mid 80s southwards. A re-enforcing, dry cold front will
pass through the region late Tuesday night into Wednesday morning
ushering in much cooler/drier conditions to the region. Low
temperatures Tuesday night will ultimately be determined by the
exact timing of the cold front, but its looking like most of the
region will drop into at least the low to mid 50s - but it could
be a few degrees cooler if the front is faster. High temperatures
on Wednesday and Thursday will be in the mid to upper 60s for most
of the region, and then overnight lows dropping into the low to
mid 40s with portions of the Piney Woods dropping into the mid
30s. A slight warm-up is expected on Friday and into the weekend
as onshore flow returns.

After tonight`s lingering showers, the area will remain rain free
through the rest of the work week. Rain chances return to the area
this weekend with an approaching system approaching from the west.

Fowler

&&

.AVIATION...
(12Z TAF Issuance)
Issued at 543 AM CST Tue Nov 25 2025

Areas of patchy to dense fog is currently affecting several sites
across SE Texas and will continue to result in LIFR-IFR vis/cigs
through around 14-15Z. Thereafter, fog is expected to burn off and
lift rather quickly. VFR conditions expected for the rest of the
day today and continue into tonight. Light WNW winds this morning
will become NNW this afternoon and NNE this evening. Winds will
increase early Wed as a dry reinforcing front brings in drier,
cooler air over the region.

Cotto

&&

.MARINE...
Issued at 1012 PM CST Mon Nov 24 2025

Moderate onshore flow has picked up tonight, up to around 20kt at
times, ahead of an approaching cold front, so small craft should
exercise caution through the night as this front moves through.
Isolated showers and thunderstorms will also be possible tonight
with the frontal passage. Once the activity ends tonight, our next
chance of rain won`t be until the weekend.

Light northerly winds are expected through the day on Tuesday, but
a re-enforcing cold front will move through the coastal waters
Tuesday night ushering in moderate to strong north to
northeasterly winds Wednesday morning into Wednesday night. Winds
will be around 20-25kt with seas increasing to 4-6ft (will
occasionally higher waves).

Conditions improve Thursday into Friday morning with light to
occasionally moderate northeasterly to easterly winds. Onshore
flow begins by Friday afternoon with moderate to possible strong
onshore winds Friday night into Saturday ahead of our next
approaching disturbance.

Fowler

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)  76  49  63  40 /  10   0   0   0
Houston (IAH)  80  55  69  45 /  10   0   0   0
Galveston (GLS)  79  61  70  56 /  20   0   0   0

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...Dense Fog Advisory until 8 AM CST this morning for TXZ163-164-
     176>179-195>200-211>213-227-300-313.

GM...Small Craft Should Exercise Caution until 6 AM CST early this
     morning for GMZ330-335-350-355-370-375.

&&

$$

DISCUSSION...Fowler
AVIATION...Cotto
MARINE...Fowler