787
FZUS54 KHGX 211251
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
651 AM CST Fri Nov 21 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.

GMZ300-220115-
651 AM CST Fri Nov 21 2025

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

Light to moderate onshore flow should continue for the next
several days with Gulf seas of 2 to 4 feet. Isolated to widely
scattered showers are expected as a front pushes offshore on
Saturday. Winds on Saturday will become easterly to northeasterly
behind the front going into Sunday. Onshore flow returns on
Sunday. The next weather system will move into the area sometime
Monday, bringing another chance of showers and storms. Onshore
winds increase ahead of the system, potentially warranting caution
flags by Sunday night.

$$

GMZ335-220115-
Galveston Bay-
651 AM CST Fri Nov 21 2025

.TODAY...South winds 5 to 10 knots. Bay waters smooth. Patchy fog
early this morning. A slight chance of showers with isolated
thunderstorms this afternoon.
.TONIGHT...South winds 5 to 10 knots, becoming southwest after
midnight. Bay waters smooth. A chance of showers with a slight
chance of thunderstorms after midnight.
.SATURDAY...North winds 5 to 10 knots. Bay waters smooth. A
chance of showers in the morning.
.SATURDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters
smooth.
.SUNDAY...East winds around 10 knots, becoming southeast in the
afternoon. Bay waters smooth to slightly choppy.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.MONDAY...South winds around 15 knots. Bay waters slightly
choppy. A chance of showers in the morning, then showers likely
in the afternoon.
.MONDAY NIGHT...Southwest winds 10 to 15 knots. Bay waters
slightly choppy. A chance of thunderstorms. Showers.
.TUESDAY...Southwest winds 5 to 10 knots. Bay waters smooth. A
chance of showers in the morning.
.TUESDAY NIGHT...East winds around 10 knots, becoming north 10 to
15 knots after midnight. Bay waters smooth, increasing to
slightly choppy after midnight. A chance of showers after
midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-220115-
Matagorda Bay-
651 AM CST Fri Nov 21 2025

.TODAY...South winds around 10 knots. Bay waters smooth to
slightly choppy. A slight chance of showers with isolated
thunderstorms early this morning. Patchy fog early this morning.
.TONIGHT...South winds 5 to 10 knots. Bay waters smooth. A slight
chance of thunderstorms. A slight chance of showers in the
evening, then a chance of showers after midnight.
.SATURDAY...Northeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers in the morning.
.SATURDAY NIGHT...East winds around 10 knots. Bay waters smooth
to slightly choppy.
.SUNDAY...East winds 10 to 15 knots. Bay waters slightly choppy.
.SUNDAY NIGHT...Southeast winds 15 to 20 knots with gusts up to
25 knots. Bay waters choppy.
.MONDAY...South winds 15 to 20 knots. Bay waters choppy. A chance
of showers.
.MONDAY NIGHT...Southwest winds 10 to 15 knots. Bay waters
slightly choppy. A chance of thunderstorms. Showers likely,
mainly in the evening.
.TUESDAY...West winds 5 to 10 knots, becoming east in the
afternoon. Bay waters smooth. A chance of showers in the morning.
.TUESDAY NIGHT...East winds around 10 knots, becoming northeast
10 to 15 knots after midnight. Bay waters smooth, increasing to
slightly choppy after midnight. A chance of showers after
midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-220115-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
651 AM CST Fri Nov 21 2025

.TODAY...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds.
.TONIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 6 seconds. A slight chance of
thunderstorms. A slight chance of showers in the evening, then a
chance of showers after midnight.
.SATURDAY...North winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds. A chance of showers in the
morning.
.SATURDAY NIGHT...East winds around 10 knots, increasing to 10 to
15 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast
2 feet at 6 seconds and east 1 foot at 3 seconds.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 3 seconds and southeast 2 feet at
6 seconds.
.SUNDAY NIGHT...Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 3 to 5 feet. Wave Detail: Southeast 4 feet at
5 seconds.
.MONDAY...South winds 15 to 20 knots. Seas 3 to 5 feet. A chance
of showers.
.MONDAY NIGHT...South winds 15 to 20 knots, becoming southwest
around 15 knots after midnight. Seas 3 to 5 feet. A chance of
thunderstorms. Showers likely.
.TUESDAY...Southwest winds 5 to 10 knots. Seas 2 to 4 feet. A
chance of showers in the morning.
.TUESDAY NIGHT...East winds around 10 knots, becoming northeast
10 to 15 knots after midnight. Seas 2 to 3 feet. A chance of
showers.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-220115-
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-
651 AM CST Fri Nov 21 2025

.TODAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 6 seconds.
.TONIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 6 seconds. A slight chance of showers and
thunderstorms after midnight.
.SATURDAY...Southwest winds around 5 knots, becoming northeast in
the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at
6 seconds.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 2 feet at 6 seconds.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 3 seconds and southeast 2 feet at
6 seconds.
.SUNDAY NIGHT...Southeast winds around 15 knots, becoming south
15 to 20 knots after midnight. Seas 3 to 5 feet. Wave Detail:
Southeast 4 feet at 5 seconds.
.MONDAY...South winds 15 to 20 knots. Seas 4 to 5 feet. A chance
of showers in the afternoon.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas 4 to 5 feet. A
chance of showers in the evening, then showers likely with a
chance of thunderstorms after midnight.
.TUESDAY...Southwest winds 10 to 15 knots, diminishing to around
10 knots in the afternoon. Seas 3 to 4 feet. A chance of showers
in the morning.
.TUESDAY NIGHT...East winds around 10 knots, becoming northeast
10 to 15 knots after midnight. Seas around 3 feet. A chance of
showers.

Winds and seas higher in and near thunderstorms.

$$