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National Weather Service Forecast Discussion

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385
FXUS64 KHGX 251818
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
118 PM CDT Wed Mar 25 2026

...New KEY MESSAGES, DISCUSSION, MARINE...

.KEY MESSAGES...


- Dry and unseasonably warm weather will continue over the next
  several days.

- Persistent southerly flow will lead to the development of some
  late night clouds and patchy fog.

- A weak/dry cool front will move through the region Friday night early
  Saturday. While it won`t rain, it will bring lower humidity and
  temperatures ranging from the low 70s to low 80s by Saturday.

- The lower humidity will be short-lived; an uptick in moisture
  and a return to above-normal temperatures are expected heading
  into early next week.


&&

.DISCUSSION...
Issued at 112 PM CDT Wed Mar 25 2026

The current stretch of dry and well-above average temperature
conditions remains firmly in control. A mid to upper level ridge
currently centered over the Desert Southwest is forecast to expand
eastward into our region through the weekend. At the surface, high
pressure positioned to our east will maintain a steady feed of warm,
humid southerly air. The combination of a strengthening ridge aloft
and southerly surface flow will push afternoon highs into the mid to
upper 80s. It won`t be a surprise if a few inland spots touch the
90F mark on Friday. With light winds and low-level moisture,
conditions are favorable for radiation fog and low clouds during the
late night and early morning hours through Friday.

A pattern shifts arrives late Friday as a weak and dry cool front
slides southward from the Plains. The boundary is progged to cross
the region Friday night into early Saturday morning. This is a dry
front, so don`t expect any rain. The primary change will be a
significant drop in humidity. By Saturday, surface dewpoints will
drop into the upper 30s (northern counties) to upper 50s (along the
coast). Highs on Saturday will be sightly "cooler", ranging from the
mid to upper 70s in our northern counties to the low 80s elsewhere.

Unfortunately, the reprieve from the humidity will be brief. By
Sunday and into early next week, southerly flow quickly resumes,
bringing an uptick in moisture and a return to above normal
temperatures. As the upper-level ridge shifts further east, dry
weather is expected to persist through at least Tuesday.

JM

&&

.AVIATION...
(12Z TAF Issuance)
Issued at 618 AM CDT Wed Mar 25 2026

Some patchy dense fog is bringing LIFR to IFR conditions at a
handful of sites this morning, while others sit in MVFR. This fog
will begin to burn off after sunrise, with rapidly improving
conditions after 14z. Terminals return to VFR later this morning
with some areas seeing some gusty winds, up to 20kts, into the
afternoon. Conditions tonight into Thursday look favorable for fog
development once again, so IFR vis and cigs are likely.

&&

.MARINE...
Issued at 112 PM CDT Wed Mar 25 2026

With the surface high pressure to our east, light to moderate south
to southeast winds and low seas (1 to 2 ft) can be expected over the
next several days. A weak and dry cool front will enter the coastal
waters Friday night into Saturday. This boundary will bring a wind
shift to the northeast with speeds of 15 to 20 kts possible on
Saturday. Caution flags (Small Craft Should Exercise Caution
conditions) or a low-end Small Craft Advisory can be expected early
Saturday. Winds will gradually weaken by late Saturday afternoon.
Light east to southeast winds will resume by Sunday and persist into
early next week, becoming moderate at times.

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)  87  63  88  62 /   0   0   0   0
Houston (IAH)  85  66  86  64 /   0   0   0   0
Galveston (GLS)  77  68  76  68 /   0   0   0   0

&&

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

$$

DISCUSSION...JM
AVIATION...Self
MARINE...JM

NWS HGX Office Area Forecast Discussion