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National Weather Service Forecast Discussion

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071
FXUS64 KHGX 151100
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
600 AM CDT Sat Aug 15 2026

...New AVIATION...

.KEY MESSAGES...

- High pressure will intensify through the weekend, reducing
  chances of rain to near zero this weekend well into next week.

- Slightly above average summertime heat (upper 90s/lower 100s)
  will persist through most of the rest of the month across
  Southeast Texas. The potential for Heat Advisory issuance
  remains elevated as a result.

- Without adequate precautions outdoors, cumulative impacts of
  heat and heat stress will remain a significant risk factor to
  health (especially for heat-sensitive populations).

&&

.DISCUSSION...
Issued at 1050 PM CDT Fri Aug 14 2026

The mid-level high pressure meandering over Southeast CONUS
during the last few days will gradually shift westward and move
across Texas this weekend. By early next week, the high will
progress further west into New Mexico and Arizona, remaining
around that region through at least mid week. So what does that
mean for us here in Southeast Texas? Basically, a "rinse and
repeat" weather pattern of hot and dry conditions is to be
expected for the next several days. Look for highs in the upper
90s inland and the lower to mid 90s along the coast, with a few
spots possible reaching 100 deg F by mid-week. The heat indices
will peak between 105-110 deg F in the afternoons. At night, it
will remain warm and muggy with inland lows generally in the mid
to upper 70s for most days and the upper 70s to lower 80s along
the coast. South to southeast winds will generally be around 10
mph during the daytime and at 5 mph or less at night.

It is imperative that you protect yourself, your loved ones, and
pets safe from these dangerously hot temperatures. Do not
underestimate the effects of heat stress when working or spending
time outdoors. Drink plenty of water, limit time outdoors, wear
loose fitting and light colored clothing, take frequent breaks,
and remember to use sunscreen. Look before you lock; Never leave
kids or pets unattended in vehicles.

For more heat safety information, visit: weather.gov/safety/heat

Cotto

&&

.AVIATION...
(12Z TAF Issuance)
Issued at 522 AM CDT Sat Aug 15 2026

CIGs and fog should clear out after sunrise as gusty southerly
winds develop across the region. VFR conditions prevail throughout
the daytime. Winds then decrease into the evening, becoming light
and variable overnight. Another brief round of MVFR CIGs/patchy
fog (short lived IFR FLs possible) could develop early Sunday
morning, mainly north of I-10 across the Brazos Valley. Calm winds
persist into the daytime hours of Sunday.

03

&&

.MARINE...
Issued at 1050 PM CDT Fri Aug 14 2026

Generally light onshore winds and seas of 2-3 feet are expected
during the next several days. Hot and mostly dry conditions will
persist through much of the forecast period as high pressure
dominates the local weather pattern.

Cotto

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)  99  74  99  75 /   0   0   0   0
Houston (IAH)  98  77  98  77 /   0   0   0   0
Galveston (GLS)  92  82  92  82 /   0   0   0   0

&&

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

$$

DISCUSSION...Cotto
AVIATION...03
MARINE...Cotto

NWS HGX Office Area Forecast Discussion