231
FZUS54 KHGX 100204
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
904 PM CDT Sat Aug 9 2025

Upper Texas coastal waters from High Island to the Matagorda Ship
Channel out 60 nautical miles including Galveston and Matagorda
Bays.

Seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the
average highest 10 percent of the waves.

GMZ300-101430-
904 PM CDT Sat Aug 9 2025

.Synopsis For High Island to the Matagorda Ship Channel Out 60 NM
including Galveston and Matagorda Bays.

Daily seabreezes will kick wind speeds up into the 12 to 17 knot
range in the afternoons and evenings near the coast and bays.
Otherwise, light onshore winds and low seas will continue to
prevail. Scattered shower and thunderstorm activity is expected
over the next few days. The best chance of showers and storms over
the waters will primarily be during the late night through early
afternoon each day.

$$

GMZ335-101430-
Galveston Bay-
904 PM CDT Sat Aug 9 2025

.REST OF TONIGHT...Southeast winds 10 to 15 knots, diminishing to
around 10 knots late. Bay waters slightly choppy, diminishing to
smooth late. A slight chance of showers and thunderstorms. A
chance of showers and thunderstorms late.
.SUNDAY...East winds 5 to 10 knots. Bay waters smooth. A chance
of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.
A chance of showers and thunderstorms after midnight.
.MONDAY...North winds around 5 knots, becoming southeast in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms.
.MONDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.TUESDAY...West winds around 5 knots, becoming southeast in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms.
.TUESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY...Southwest winds around 5 knots, becoming southeast
in the afternoon. Bay waters smooth. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...South winds around 10 knots. Bay waters smooth
to slightly choppy.
.THURSDAY...South winds around 10 knots, increasing to 10 to
15 knots in the afternoon. Bay waters smooth, increasing to
slightly choppy in the afternoon. A chance of showers and
thunderstorms.
.THURSDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-101430-
Matagorda Bay-
904 PM CDT Sat Aug 9 2025

.REST OF TONIGHT...Southeast winds 10 to 15 knots, becoming south
around 10 knots late. Bay waters slightly choppy, diminishing to
smooth late. A slight chance of showers and thunderstorms.
.SUNDAY...Southeast winds around 5 knots, increasing to 10 to
15 knots with gusts up to 20 knots in the afternoon. Bay waters
smooth, increasing to slightly choppy in the afternoon. A chance
of showers and thunderstorms, mainly in the morning.
.SUNDAY NIGHT...Southeast winds 15 to 20 knots, becoming south
around 10 knots after midnight. Bay waters choppy, diminishing to
smooth after midnight.
.MONDAY...Southwest winds around 5 knots, becoming southeast
10 to 15 knots in the afternoon. Bay waters smooth, increasing to
slightly choppy in the afternoon. A chance of showers and
thunderstorms.
.MONDAY NIGHT...Southeast winds 10 to 15 knots, becoming south
around 10 knots after midnight. Bay waters slightly choppy,
diminishing to smooth after midnight.
.TUESDAY...South winds around 5 knots, becoming southeast 10 to
15 knots in the afternoon. Bay waters smooth, increasing to
slightly choppy in the afternoon.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots, becoming south
around 10 knots after midnight. Bay waters slightly choppy,
diminishing to smooth after midnight.
.WEDNESDAY...South winds around 10 knots, becoming southeast
10 to 15 knots in the afternoon. Bay waters smooth, increasing to
slightly choppy in the afternoon.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Bay waters
slightly choppy.
.THURSDAY...South winds around 10 knots, increasing to 10 to
15 knots in the afternoon. Bay waters smooth, increasing to
slightly choppy in the afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-101430-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
904 PM CDT Sat Aug 9 2025

.REST OF TONIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A slight
chance of showers and thunderstorms. A chance of showers and
thunderstorms late.
.SUNDAY...East winds 5 to 10 knots. Seas around 2 feet in the
morning, then 1 foot or less. Wave Detail: Southeast 1 foot at
4 seconds, becoming east 1 foot at 4 seconds. A chance of showers
and thunderstorms, mainly in the morning.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: East 1 foot at 4 seconds. A chance of
showers and thunderstorms after midnight.
.MONDAY...West winds around 5 knots, becoming southeast in the
afternoon. Seas around 2 feet. Wave Detail: Southeast 1 foot at
4 seconds. A chance of showers and thunderstorms in the morning.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds.
.TUESDAY...Southwest winds 5 to 10 knots, becoming southeast in
the afternoon. Seas around 2 feet. Wave Detail: Southeast 1 foot
at 5 seconds.
.TUESDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet.
.WEDNESDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms in the morning.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
.THURSDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms in the morning.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-101430-
Waters from Freeport to Matagorda Ship Channel TX from 20 to
60 NM-Waters from High Island to Freeport TX from 20 to 60 NM-
904 PM CDT Sat Aug 9 2025

.REST OF TONIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 1 foot at 4 seconds. A slight
chance of showers and thunderstorms early this evening. A slight
chance of showers and thunderstorms, then a chance of showers and
thunderstorms late.
.SUNDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 1 foot at 4 seconds. A chance of showers and
thunderstorms, mainly in the morning.
.SUNDAY NIGHT...East winds 5 to 10 knots, becoming southeast
after midnight. Seas around 2 feet. Wave Detail: East 1 foot at
4 seconds. A chance of showers and thunderstorms after midnight.
.MONDAY...West winds 5 to 10 knots, becoming east in the
afternoon. Seas around 2 feet. Wave Detail: East 1 foot at
4 seconds and south 1 foot at 4 seconds. A chance of showers and
thunderstorms in the morning.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds.
.TUESDAY...Southwest winds 5 to 10 knots, becoming southeast in
the afternoon. Seas around 2 feet. Wave Detail: South 1 foot at
4 seconds.
.TUESDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet.
.WEDNESDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms in the morning.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
.THURSDAY...South winds around 10 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms in the morning.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$