548
FZUS54 KHGX 160029
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
729 PM CDT Sun Jun 15 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.

GMZ300-161315-
Synopsis for High Island to the Matagorda Ship Channel out
60 nautical miles including Galveston and Matagorda Bays
729 PM CDT Sun Jun 15 2025

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

A daily risk of showers and thunderstorms continues through the
week. Light to moderate onshore flow continues through Tuesday,
with onshore flow increasing somewhat after Wednesday. However,
higher winds and seas will be possible in the vicinity of any
thunderstorm. Seas will also increase after mid-week into the end
of the week in response to a surface coastal trough along the Deep
South TX coast.

$$

GMZ335-161315-
Galveston Bay-
729 PM CDT Sun Jun 15 2025

...Small Craft Should Exercise Caution...

.REST OF TONIGHT...Southwest winds around 10 knots, backing to
south late this evening and overnight. Bay waters slightly
choppy. A chance of thunderstorms this evening.
.MONDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
A chance of showers and thunderstorms.
.MONDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.TUESDAY...South winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...South winds around 15 knots. Bay waters slightly
choppy to choppy. A chance of showers and thunderstorms early in
the evening.
.WEDNESDAY...South winds around 15 knots. Bay waters slightly
choppy to choppy. A chance of showers and thunderstorms in the
afternoon.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Bay waters
slightly choppy.
.THURSDAY...Southeast winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of thunderstorms. A chance of showers
in the morning, then showers likely in the afternoon.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.FRIDAY...Southeast winds around 10 knots, rising to 10 to
15 knots in the afternoon. Bay waters smooth, rising to slightly
choppy in the afternoon. A chance of thunderstorms. A chance of
showers.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-161315-
Matagorda Bay-
729 PM CDT Sun Jun 15 2025

...Small Craft Should Exercise Caution...

.REST OF TONIGHT...South winds 10 to 15 knots. Bay waters
slightly choppy. A slight chance of showers and thunderstorms
early this evening.
.MONDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
A chance of showers and thunderstorms, mainly in the morning.
.MONDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.TUESDAY...South winds 10 to 15 knots. Bay waters slightly
choppy.
.TUESDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.WEDNESDAY...South winds 10 to 15 knots. Bay waters slightly
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. Showers likely with a chance of thunderstorms.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots, easing to
around 10 knots after midnight. Bay waters slightly choppy,
easing to smooth after midnight. A chance of showers and
thunderstorms after midnight.
.FRIDAY...Southeast winds around 10 knots, rising to 10 to
15 knots in the afternoon. Bay waters smooth, rising to slightly
choppy in the afternoon. A chance of showers and thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A chance of showers after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-161315-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
729 PM CDT Sun Jun 15 2025

...Small Craft Should Exercise Caution...

.REST OF TONIGHT...South winds 10 to 15 knots. Seas around
3 feet. Wave Detail: Southeast 3 feet at 6 seconds. A slight
chance of thunderstorms this evening. A chance of showers. A
chance of thunderstorms.
.MONDAY...South winds 10 to 15 knots. Seas around 3 feet. Wave
Detail: South 3 feet at 6 seconds. A chance of showers and
thunderstorms until late afternoon, then a slight chance of
showers and thunderstorms late.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: South 3 feet at 6 seconds.
.TUESDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 3 feet at 6 seconds.
.TUESDAY NIGHT...South winds 15 to 20 knots. Seas 3 to 4 feet.
Wave Detail: South 4 feet at 5 seconds.
.WEDNESDAY...South winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: South 4 feet at 5 seconds.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet.
Showers likely with a chance of thunderstorms.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
5 feet. A chance of showers and thunderstorms after midnight.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of thunderstorms. A chance of showers.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
A chance of showers after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-161315-
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-
729 PM CDT Sun Jun 15 2025

.REST OF TONIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 3 feet at 6 seconds. A slight chance of
showers and thunderstorms this evening. A chance of showers and
thunderstorms.
.MONDAY...South winds 10 to 15 knots. Seas around 3 feet. Wave
Detail: South 3 feet at 6 seconds. A chance of showers and
thunderstorms.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: South 3 feet at 6 seconds.
.TUESDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 3 feet at 6 seconds. A chance of showers and
thunderstorms until late afternoon.
.TUESDAY NIGHT...South winds around 15 knots, rising to 15 to
20 knots after midnight. Seas 3 to 4 feet. Wave Detail: South
4 feet at 6 seconds.
.WEDNESDAY...South winds around 15 knots. Seas 4 to 5 feet. Wave
Detail: South 4 feet at 6 seconds. A chance of showers and
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to
5 feet. A chance of showers and thunderstorms after midnight.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet.
Showers likely with a chance of thunderstorms.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas 4 to
5 feet. A chance of showers after midnight.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet. A
chance of showers and thunderstorms in the morning, then a chance
of showers in the afternoon.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 5 feet.
A chance of showers after midnight.

Winds and seas higher in and near thunderstorms.

$$