538
FZUS54 KHGX 171801
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
101 PM CDT Tue Jun 17 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.

GMZ300-180630-
Synopsis for High Island to the Matagorda Ship Channel out
60 nautical miles including Galveston and Matagorda Bays
101 PM CDT Tue Jun 17 2025

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

Onshore flow is expected for the next several days. Though
generally moderate, stronger winds are expected from late tonight
into Wednesday. During this period, winds will increase to 15 to
20 knots and seas may rise to around 5 feet for the offshore
waters. Small craft should exercise caution in these conditions.
There is a daily risk of showers and thunderstorms through the
upcoming weekend. Higher winds and seas are possible in the
vicinity of any thunderstorms. The persistent onshore flow will
lead to the potential for strong rip currents at Gulf-facing
beaches.


$$

GMZ335-180630-
Galveston Bay-
101 PM CDT Tue Jun 17 2025

...Small Craft Should Exercise Caution Tonight Into Wednesday...

.TODAY...South winds 10 to 15 knots. Bay waters slightly choppy.
A slight chance of showers and thunderstorms this afternoon.
.TONIGHT...South winds 15 to 20 knots. Bay waters choppy. A
slight chance of showers and thunderstorms early in the evening.
.WEDNESDAY...South winds around 15 knots. Bay waters slightly
choppy to choppy.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Bay waters
slightly choppy.
.THURSDAY...South winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.FRIDAY...South winds around 10 knots, rising to 10 to 15 knots
in the afternoon. Bay waters smooth, rising to slightly choppy in
the afternoon.
.FRIDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.SATURDAY...South winds 10 to 15 knots. Bay waters slightly
choppy.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-180630-
Matagorda Bay-
101 PM CDT Tue Jun 17 2025

...Small Craft Should Exercise Caution Tonight Into Wednesday...

.TODAY...South winds 10 to 15 knots. Bay waters slightly choppy.
.TONIGHT...South winds 15 to 20 knots. Bay waters choppy.
.WEDNESDAY...South winds 15 to 20 knots. Bay waters choppy.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.THURSDAY...Southeast winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers and thunderstorms.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.FRIDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers. A chance of thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.SATURDAY...Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms in the morning.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-180630-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
101 PM CDT Tue Jun 17 2025

...Small Craft Should Exercise Caution Tonight Into Wednesday...

.TODAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 3 feet at 6 seconds. A slight chance of showers and
thunderstorms this afternoon.
.TONIGHT...South winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: South 4 feet at 6 seconds.
.WEDNESDAY...South winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: South 5 feet at 5 seconds.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: South 4 feet at 6 seconds.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 3 feet at 6 seconds. A chance of showers
and thunderstorms.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
5 feet. Wave Detail: Southeast 4 feet at 7 seconds.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
.SATURDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-180630-
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-
101 PM CDT Tue Jun 17 2025

...Small Craft Should Exercise Caution Tonight Into Wednesday...

.TODAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 3 feet at 6 seconds. A slight chance of showers and
thunderstorms this afternoon.
.TONIGHT...South winds around 15 knots, rising to 15 to 20 knots
after midnight. Seas 3 to 5 feet. Wave Detail: South 4 feet at
6 seconds.
.WEDNESDAY...South winds 15 to 20 knots, easing to around
15 knots late. Seas 4 to 5 feet. Wave Detail: South 4 feet at
6 seconds.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: South 4 feet at 6 seconds.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet.
Wave Detail: Southeast 4 feet at 6 seconds. A chance of showers
and thunderstorms.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
5 feet. Wave Detail: Southeast 4 feet at 7 seconds.
.FRIDAY...Southeast winds around 10 knots. Seas 3 to 5 feet.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
.SATURDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet.

Winds and seas higher in and near thunderstorms.

$$