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National Weather Service Forecast Discussion

052
FXUS64 KHGX 050434
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
1134 PM CDT Tue Aug 4 2026

...New DISCUSSION, MARINE...

.KEY MESSAGES...

- Seasonably hot with highs in the 90s and heat index values
  100-107F each day.

- An isolated late day shower can`t be ruled out along the
  seabreeze later today.

- Slightly better rain chances expected Thursday into early next
  week for southern parts of the region as some deeper moisture
  flows back inland.

&&

.DISCUSSION...
Issued at 1132 PM CDT Tue Aug 4 2026

Ridging centered over the Southwest CONUS/Four Corners is expected
to result in largely uneventful weather over SE Texas through early
next week at least. The ridge is anticipated to drift north slightly
beginning Thursday with heights and 850mb temperatures expected to
drop slightly into the weekend, resulting in a slight downturn in
heat stress. Decreasing subsidence and rising PWs should bring some
better rain chances throughout this period, with isolated
seabreeze/baybreeze showers/storms becoming more scattered in nature
as a result, especially after today. Overall highs will be in the
90s each day with heat indices reaching the triple digits in the
afternoon. Some patchy fog will be possible during the early morning
hours.

03

&&

.AVIATION...
(00Z TAF Issuance)
Issued at 710 PM CDT Tue Aug 4 2026

Current VCTS associated with the afternoon sea breeze are being
monitored around IAH. Remnants of the sea breeze will keep S
winds elevated around 10 kts, gusting between 15-20 kts. Winds
will relax becoming variable at 03-05 kts in the early morning
hours between 05-12Z. Just before sunrise, CIGs and VSBYs could
drop to MVFR and even VFR at some terminals such as SGR, LBX, IAH,
and CXO due to light winds and overnight moisture supply. After
sunrise, CIGs will gradually lift and scatter out and fog, if any,
will burn off quickly and return to VFR conditions throughout the
period. Winds will strengthen around 10 kts throughout the
afternoon out of the S-SE. Sea breeze again brings gusts 15-20 kts
and another round of PROB30 -SHRA, mainly around the I-10
corridor.

BSM

&&

.MARINE...
Issued at 1132 PM CDT Tue Aug 4 2026

Onshore winds 10-15 knots and seas of 2-4 feet are expected
throughout the next several days. Rain chances increase slightly on
Thursday through early next week. Chances for isolated to scattered
showers and storms will be greatest during the late night through
early afternoon hours for the Gulf.

03

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)  76  97  77  96 /   0   0   0  10
Houston (IAH)  79  98  79  96 /  10  20  20  30
Galveston (GLS)  83  90  83  91 /   0   0   0  20

&&

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

$$

DISCUSSION...03
AVIATION...BSM
MARINE...03

NWS HGX Office Area Forecast Discussion