009
FZUS54 KHGX 052339
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
639 PM CDT Tue Aug 5 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.

GMZ300-061215-
639 PM CDT Tue Aug 5 2025

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

Light winds and low seas will prevail for the next several days.
Isolated to scattered showers and thunderstorms will continue to
be possible...mainly in the late night through early afternoon
hours each day.

$$

GMZ335-061215-
Galveston Bay-
639 PM CDT Tue Aug 5 2025

.TONIGHT...Southeast winds 10 to 15 knots, becoming south around
10 knots after midnight. Bay waters slightly choppy, diminishing
to smooth after midnight. A slight chance of showers and
thunderstorms.
.WEDNESDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of thunderstorms. A slight chance of showers in the
morning, then a chance of showers in the afternoon.
.WEDNESDAY NIGHT...South winds around 10 knots, becoming
southwest after midnight. Bay waters smooth to slightly choppy,
diminishing to smooth after midnight.
.THURSDAY...Northwest winds around 5 knots, becoming southeast in
the afternoon. Bay waters smooth. A chance of showers and
thunderstorms.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.FRIDAY...West winds around 5 knots, becoming southeast in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.SATURDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds around 10 knots. Bay waters
smooth to slightly choppy.
.SUNDAY...Southeast winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-061215-
Matagorda Bay-
639 PM CDT Tue Aug 5 2025

.TONIGHT...Southeast winds 10 to 15 knots, becoming south around
10 knots late. Bay waters slightly choppy, diminishing to smooth
late. A chance of showers and thunderstorms late.
.WEDNESDAY...South winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms, mainly in the morning.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.THURSDAY...South winds 5 to 10 knots. Bay waters smooth.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.FRIDAY...South winds 5 to 10 knots. Bay waters smooth.
.FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.SATURDAY...Southeast winds 5 to 10 knots. Bay waters smooth.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.SUNDAY...South winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers and thunderstorms in the
morning.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to
around 10 knots after midnight. Bay waters slightly choppy,
diminishing to smooth after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-061215-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
639 PM CDT Tue Aug 5 2025

.TONIGHT...Southeast winds 5 to 10 knots. Seas 1 foot. Wave
Detail: South 1 foot at 4 seconds. A slight chance of showers and
thunderstorms late.
.WEDNESDAY...South winds 5 to 10 knots. Seas 1 foot. Wave Detail:
South 1 foot at 4 seconds. A chance of showers and thunderstorms.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot, then
around 2 feet after midnight. Wave Detail: South 1 foot at 4
seconds.
.THURSDAY...Southwest winds around 5 knots, becoming south in the
afternoon. Seas around 2 feet. Wave Detail: Southwest 1 foot at
4 seconds. A chance of showers and thunderstorms in the morning.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
.FRIDAY...Southwest winds around 5 knots, becoming southeast in
the afternoon. Seas around 2 feet. A chance of showers and
thunderstorms in the morning.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms in the morning.
.SATURDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet.
.SUNDAY...Southeast winds around 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms in the morning.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-061215-
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-
639 PM CDT Tue Aug 5 2025

.TONIGHT...Southeast winds 5 to 10 knots. Seas 1 foot. Wave
Detail: Southwest 1 foot at 4 seconds. A chance of showers with a
slight chance of thunderstorms late.
.WEDNESDAY...South winds 5 to 10 knots. Seas 1 foot. Wave Detail:
Southwest 1 foot at 4 seconds. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot, then
around 2 feet after midnight, then around 2 feet after midnight.
Wave Detail: South 1 foot at 4 seconds, becoming southwest 1 foot
at 4 seconds.
.THURSDAY...Southwest winds around 5 knots, becoming south in the
afternoon. Seas around 2 feet. A chance of showers and
thunderstorms in the morning.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
.FRIDAY...Southwest winds around 5 knots, becoming southeast in
the afternoon. Seas around 2 feet. A chance of showers and
thunderstorms in the morning.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms in the morning.
.SATURDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.
.SUNDAY...Southeast winds around 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms in the morning.
.SUNDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$