491
FZUS54 KHGX 171128
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
628 AM CDT Fri Oct 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.

GMZ300-180000-
628 AM CDT Fri Oct 17 2025

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

Moderate onshore winds and isolated to scattered showers and
thunderstorms are anticipated today through Saturday. A cool front
is expected to push into the waters late Saturday night into
Sunday morning. After a brief wind shift to the north and
northeast, winds will swing back around to the southeast by
Monday.

$$

GMZ335-180000-
Galveston Bay-
628 AM CDT Fri Oct 17 2025

.TODAY...Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers with isolated thunderstorms.
.TONIGHT...Southeast winds 10 to 15 knots. Bay waters slightly
choppy.
.SATURDAY...South winds 10 to 15 knots. Bay waters slightly
choppy. A chance of thunderstorms in the morning. A chance of
showers.
.SATURDAY NIGHT...South winds around 10 knots, becoming southwest
after midnight. Bay waters smooth to slightly choppy, diminishing
to smooth after midnight. A chance of showers and thunderstorms
after midnight.
.SUNDAY...North winds 15 knots becoming northeast. Bay waters
slightly choppy to choppy.
.SUNDAY NIGHT...Northeast winds around 10 knots. Bay waters
smooth to slightly choppy.
.MONDAY...East winds around 10 knots, becoming southeast in the
afternoon. Bay waters smooth to slightly choppy.
.MONDAY NIGHT...South winds around 10 knots. Bay waters smooth to
slightly choppy.
.TUESDAY...South winds 5 to 10 knots. Bay waters smooth.
.TUESDAY NIGHT...Southeast winds around 10 knots. Bay waters
smooth to slightly choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-180000-
Matagorda Bay-
628 AM CDT Fri Oct 17 2025

.TODAY...Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms.
.TONIGHT...Southeast winds 10 to 15 knots. Bay waters slightly
choppy.
.SATURDAY...South winds around 10 knots. Bay waters smooth to
slightly choppy.
.SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.SUNDAY...North winds 10 to 15 knots, becoming northeast in the
afternoon. Bay waters slightly choppy.
.SUNDAY NIGHT...East winds around 10 knots. Bay waters smooth to
slightly choppy.
.MONDAY...Southeast winds around 10 knots. Bay waters smooth to
slightly choppy.
.MONDAY NIGHT...South winds around 10 knots. Bay waters smooth to
slightly choppy.
.TUESDAY...South winds 5 to 10 knots. Bay waters smooth.
.TUESDAY NIGHT...Southeast winds around 10 knots. Bay waters
smooth to slightly choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-180000-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
628 AM CDT Fri Oct 17 2025

.TODAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 5 seconds. A chance of showers and
isolated thunderstorms.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 6 seconds.
.SATURDAY...South winds around 10 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 6 seconds. A chance of showers in the
afternoon.
.SATURDAY NIGHT...Southwest winds around 10 knots. Seas around
3 feet. Wave Detail: South 2 feet at 5 seconds. A chance of
showers and thunderstorms after midnight.
.SUNDAY...North winds 15 knots, becoming northeast with gusts up
to 20 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
Southwest 2 feet at 4 seconds and southeast 2 feet at 6 seconds.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 6 seconds and south 1 foot at 5 seconds.
.MONDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
.TUESDAY...South winds 5 to 10 knots. Seas 2 to 3 feet.
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-180000-
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-
628 AM CDT Fri Oct 17 2025

.TODAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 5 seconds. A chance of showers and
isolated thunderstorms.
.TONIGHT...Southeast winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at
6 seconds. A slight chance of showers. Isolated thunderstorms.
.SATURDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 6 seconds. A chance of showers in the
afternoon.
.SATURDAY NIGHT...Southwest winds around 10 knots. Seas around
3 feet. Wave Detail: South 2 feet at 5 seconds.
.SUNDAY...North winds 15 knots, becoming northeast in the
afternoon. Seas around 3 feet. Wave Detail: Southwest 2 feet at 5
seconds and east 2 feet at 6 seconds.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East 2 feet at 6 seconds and southwest 1 foot at
5 seconds.
.MONDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$