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National Weather Service Forecast Discussion

743
FXUS64 KHGX 080454
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
1154 PM CDT Fri Aug 7 2026

...New DISCUSSION, MARINE...

.KEY MESSAGES...

- Scattered seabreeze showers and thunderstorms expected on a
  daily basis through early next week.

- There is a chance of more numerous showers and thunderstorms on
  Sunday and/or Monday.

- Seasonably hot with highs in the 90s and heat index values
  101-108F each day.

&&

.DISCUSSION...
Issued at 1115 PM CDT Fri Aug 7 2026

No major changes to the forecast. Hot weather and daily rain chances
can still be expected through early next week. Ridging is currently
situated over the Four Corners/off the East Coast. A weakness
between both has resulted in lower heights & subsidence, which
should allow for scattered showers and storms each day into next
week. Expect most of this activity to occur during the daytime along
the sea breeze, generally across the southern 2/3rds of our CWA.
Lowering heights and the arrival of deep tropical moisture will
bring the highest rain chances on Sunday and Monday. Daytime
temperatures throughout the time frame will still be fairly hot,
especially in spots that don`t receive rainfall, with highs in the
90s and heat indicies in the triple digits. Would be worth
practicing heat safety still, especially for those spending extended
time outdoors. Patchy fog may develop in spots during the early
morning hours.

Around Tuesday, 850mb temperatures begin to rise again as ridging
builds across the northwestern Gulf. Afterwards, temperatures and
heat indicies slowly rise while rain chances decrease.

03

&&

.AVIATION...
(00Z TAF Issuance)
Issued at 757 PM CDT Fri Aug 7 2026

VFR conditions expected for much of the TAF period, with the
exception of MVFR cigs and reduced visibilities (from patchy fog)
developing Sat morning from 10-14Z. Cigs will lift and scatter out
and fog (if any) will burn off shortly after 15Z. Winds will be
shifting from S-SW to S-SE Sat afternoon, with speeds around
08-14 KTS. There`s also the potential for iso-sct showers and
storms in the afternoon. IAH, HOU, CXO, and SGR are the most
likely sites to be affected by these storms. Expect VRB and gusty
winds, lightning, and periods of heavy rain with these storms.
Rain chances decrease in the evening as diurnal heating decreases
and the environment becomes more stable. Look for clearing skies
and winds gradually decreasing early Sat night.

Cotto

&&

.MARINE...
Issued at 1115 PM CDT Fri Aug 7 2026

Onshore winds 10-15 knots and seas of 2-4 feet are expected
throughout the next several days. Rain chances increase slightly
through early next week. Chances for scattered showers and storms
will be greatest during the early morning through early afternoon
hours for the Gulf. Shower and storm coverage may become more
widespread on Sunday and Monday.

03

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)  96  75  96  75 /  10   0  10  10
Houston (IAH)  95  78  95  78 /  30   0  30  10
Galveston (GLS)  91  82  90  83 /  20  10  20  20

&&

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

$$

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

NWS HGX Office Area Forecast Discussion