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National Weather Service Forecast Discussion

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634
FXUS64 KHGX 251104 AAA
AFDHGX

Area Forecast Discussion...UPDATED
National Weather Service Houston/Galveston TX
604 AM CDT Thu Jun 25 2026

...New AVIATION...

.KEY MESSAGES...

- Hot conditions will continue this week, with potential for heat
  stress issues as heat indices approach 105-107F (41-42C) each
  day and WBGT risk peaks in the red category.

&&

.DISCUSSION...
Issued at 1208 AM CDT Thu Jun 25 2026

A fairly mundane and typical summer-time pattern will prevail over
Southeast Texas through early next week as mid-lvl ridging continues
to exert its influence over the region. Although the placement of
the ridge axis will gradually shift east of the area this weekend,
subsident and dry conditions will continue to prevail with rain
chances generally 10% or less each day through Tuesday. We will
likely see periods of hazy skies during the forecast period, due
to both high- altitude smoke from western US fires on Thursday,
and periodic intrusions of Saharan Dust (the most prominent of
which will arrive early next week). Heading towards the end of the
forecast period, an upper-lvl disturbance may progress westward
around the southern flank of the eastern US ridge. Mentionable
(~15-25%) rain chances will thus return to the forecast on
Wednesday, but naturally forecast uncertainty remains high at that
time horizon.

Highs will range from the upper 80s near the coast to the mid 90s
inland each day through next week. Peak heat indices in the 100-102
range today will increase into the 104 to 107 range by this weekend
as dewpoints creep up a couple degrees. Peak WBGT values will remain
solidly in the high (red) range each afternoon, so stay hydrated and
avoid strenuous activity in direct sunlight.

&&

.AVIATION...
(12Z TAF Issuance)
Issued at 604 AM CDT Thu Jun 25 2026

A brief period of MVFR ceilings or fog is possible early this
morning, mainly north and west of the Houston airports. Otherwise,
VFR conditions are anticipated through the TAF period. Southerly
winds may gust to near 20 kt at times late this morning through
this afternoon, and again during the daytime Friday.

&&

.MARINE...
Issued at 1208 AM CDT Thu Jun 25 2026

Light to moderate southerly flow will prevail through the workweek,
increasing slightly Friday into the weekend into the moderate to
fresh range. Seas will generally run 2 to 4 ft through Friday
increasing to 3 to 5 ft into the weekend.

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)  93  75  94  76 /   0   0  10   0
Houston (IAH)  93  77  93  77 /   0   0   0   0
Galveston (GLS)  88  82  89  83 /   0   0   0   0

&&

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

$$

DISCUSSION...NC
AVIATION...DL
MARINE...NC

NWS HGX Office Area Forecast Discussion