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National Weather Service Forecast Discussion

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618
FXUS64 KHGX 070435
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
1135 PM CDT Thu Aug 6 2026

...New DISCUSSION, MARINE...

.KEY MESSAGES...

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

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

&&

.DISCUSSION...
Issued at 1133 PM CDT Thu Aug 6 2026

Hot weather with daily rain chances should continue through early
next week. Ridging reminds situated over the Four corners region,
though heights and 850mb temperatures have decreased. Daytime highs
should be a tad lower compared to past days, though heat indicies
will still reach triple digits, thus it would be worth practicing
heat safety. Shower/storm coverage yesterday outperformed the NBM
slightly, and thus scattered showers/storms are likely to
continue daily through the weekend into early next week as PW
values continue to rise. Much of this activity will occur during
the afternoon along the sea/bay breeze, generally covering the
southern 2/3rds of our CWA. With deeper moisture, we`ll also need
to keep an eye out for patchy fog during the early morning hours.

Around Tuesday, 850mb temperatures begin to rise again as ridging
builds across the northwestern Gulf. Temperatures slowly nudge
upwards by a few degrees, along with heat indicies through the end
of the work week as rain chances decrease.

03

&&

.AVIATION...
(00Z TAF Issuance)
Issued at 615 PM CDT Thu Aug 6 2026

Isolated showers/thunderstorms lingering around SE TX airports
will gradually dissipate this evening. Winds will be S-SE at
around 5-10 KTS and then relax to 5 KTS or less after 03Z. There`s
the potential for MVFR cigs and reduced vis due to areas of
patchy fog over portions of the CWA, mainly from 10-14Z timeframe.
Cigs will lift and scatter out during the mid morning hours and
fog (if any) will burn off quickly shortly after sunrise. Mostly
VFR conditions expected Fri with iso-sct showers and storms
developing in the afternoon, in particular near/over HOU, IAH,
SGR, CXO. In areas of storms, expect MVFR conditions along with
lightning and VRB winds of around 15 KTS with gusts around 25 KTS.
Stronger winds are possible with outflow boundaries from stronger
storms. Storms will gradually dissipate Fri evening as diurnal
heating decreases.

Cotto

&&

.MARINE...
Issued at 1133 PM CDT Thu Aug 6 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.

03

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)  76  96  75  95 /  20  20   0  10
Houston (IAH)  79  96  78  94 /  10  30   0  30
Galveston (GLS)  83  91  82  91 /  10  20  10  30

&&

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

$$

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

NWS HGX Office Area Forecast Discussion