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National Weather Service Forecast Discussion

788
FXUS64 KHGX 290413
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
1113 PM CDT Fri Aug 28 2026

...New DISCUSSION, AVIATION, MARINE...

.KEY MESSAGES...

- Hot and dry conditions are expected today with isolated to
  scatter showers and storms in the afternoon.

- Hot and humid conditions with daily chances for showers/storms
  will continue into next week.

&&

.DISCUSSION...
Issued at 1108 PM CDT Fri Aug 28 2026

Precipitable water has started to diminish across Southeast TX
late this evening, with 1.8 - 1.9 inches remaining over the
coastal zones. Deep moisture convergence could persist through
early morning, bringing the potential for a few showers and storms
along the coast/coastal waters through mid/late Saturday morning.
Otherwise, typical summer-like weather is expected today and
Sunday with isolated to scattered afternoon showers and storms,
primarily driven by the seabreeze. Highs generally in the mid to
upper 90s with heat indices in the 103 to 108F range.

Mid to upper level ridge will continue to expand eastward across
the southern Plains before shifting more to the east throughout
the week. This pattern will keep Southeast TX generally under
easterly flow aloft, bringing subtle disturbances into our region
from the Gulf. With persistent warm and humid southerly surface
flow, weak disturbances approaching from the Gulf, and seabreeze
interaction in the afternoon, a daily risk of showers and
thunderstorms can be expected through the week... better chances
towards the end of the work week.

Near to slightly above normal temperatures are expected this
weekend into the upcoming week with highs generally in the mid to
upper 90s (inland) and in the low 90s (coast).Peak heat indices
will generally remain in the 105 to 109F range.

JM

&&

.AVIATION...
(06Z TAF Issuance)
Issued at 1108 PM CDT Fri Aug 28 2026

Winds have become VRB as the night has progressed and become
almost calm near daybreak. These conditions bring the chance for
BR across UTS, CXO, and SGR. Any BR that forms is anticipated to
lift around 15z as the winds pick up and shift to SSE. The day
remains VFR with a slight chance of isol to sct TS/SH in the
afternoon. Exact placement of any storm is uncertain thus Prob30
remain out of the TAFs this cycle. This will continued to be
monitored in following TAF periods.

CMW

&&

.MARINE...
Issued at 1108 PM CDT Fri Aug 28 2026


A few showers and storms will be possible early this morning over
the coastal waters, before diminishing after mid-morning. Otherwise,
light onshore winds and seas around 1 to 3 ft will prevail today and
will persist through the weekend and the upcoming week. A daily
chance of showers and storms are expected each day next week as
different disturbances over the Gulf moves westward into the Upper
TX coast. Strong winds and building seas are possible near storms.

JM

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)  75  99  75  97 /  10   0  10   0
Houston (IAH)  79  98  78  97 /  60  10  10  10
Galveston (GLS)  82  89  83  91 /  10  10  10  10

&&

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

$$

DISCUSSION...JM
AVIATION...CMW
MARINE...JM

NWS HGX Office Area Forecast Discussion