984
FZUS54 KHGX 281121
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
621 AM CDT Thu Aug 28 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.

GMZ300-290030-
621 AM CDT Thu Aug 28 2025

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

Light to occasionally moderate onshore flow will persist through
the end of the week along with a continued daily risk of showers
and thunderstorms. A frontal boundary is expected to enhance
shower and thunderstorm activity this weekend. Winds may switch
to a more northerly direction by Sunday behind the front for a
brief stretch early next week, before turning back to being
broadly onshore later next week.


$$

GMZ335-290030-
Galveston Bay-
621 AM CDT Thu Aug 28 2025

.TODAY...South winds 5 to 10 knots. Bay waters smooth. A chance
of showers and thunderstorms until late afternoon, then a slight
chance of showers and thunderstorms late.
.TONIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.FRIDAY...Southwest winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers and thunderstorms.
.SATURDAY...West winds 5 to 10 knots, becoming southeast in the
afternoon. Bay waters smooth. Showers likely. A chance of
thunderstorms in the morning, then thunderstorms likely in the
afternoon.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. A chance of thunderstorms. A chance of showers in the
evening, then showers likely after midnight.
.SUNDAY...North winds 5 to 10 knots, becoming northeast in the
afternoon. Bay waters smooth. A chance of thunderstorms. Showers
likely, mainly in the morning.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters smooth.
A chance of showers in the evening, then a chance of showers and
thunderstorms after midnight.
.MONDAY...Northeast winds 5 to 10 knots. Bay waters smooth. A
chance of thunderstorms. A chance of showers.
.MONDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-290030-
Matagorda Bay-
621 AM CDT Thu Aug 28 2025

.TODAY...South winds 5 to 10 knots. Bay waters smooth. A slight
chance of showers and thunderstorms late this morning.
.TONIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.FRIDAY...South winds around 10 knots. Bay waters smooth to
slightly choppy.
.FRIDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.SATURDAY...South winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms in the afternoon.
.SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms after midnight.
.SUNDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers. A chance of thunderstorms in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth. A
chance of showers in the evening, then a chance of showers and
thunderstorms after midnight.
.MONDAY...North winds 5 to 10 knots, becoming northeast in the
afternoon. Bay waters smooth. A chance of thunderstorms. A chance
of showers.
.MONDAY NIGHT...East winds 5 to 10 knots, becoming northeast
after midnight. Bay waters smooth. A chance of showers.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-290030-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
621 AM CDT Thu Aug 28 2025

.TODAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms this morning, then a slight chance of showers and
thunderstorms early this afternoon.
.TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.FRIDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 4 seconds.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds.
.SATURDAY...Southwest winds 10 to 15 knots, becoming south around
10 knots in the afternoon. Seas around 2 feet. Wave Detail:
Southwest 2 feet at 4 seconds. A chance of showers and
thunderstorms.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 4 seconds. A chance of
thunderstorms. A chance of showers in the evening, then showers
likely after midnight.
.SUNDAY...Southwest winds around 10 knots, becoming east in the
afternoon. Seas around 2 feet. A chance of thunderstorms. Showers
likely, mainly in the morning.
.SUNDAY NIGHT...East winds around 10 knots. Seas around 2 feet. A
chance of showers in the evening, then a chance of showers and
thunderstorms after midnight.
.MONDAY...Northeast winds around 10 knots. Seas around 2 feet. A
chance of thunderstorms. A chance of showers.
.MONDAY NIGHT...Northeast winds around 10 knots. Seas around
2 feet. A chance of showers.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-290030-
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-
621 AM CDT Thu Aug 28 2025

.TODAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds. A chance of showers and
thunderstorms, mainly this morning.
.TONIGHT...South winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.FRIDAY...South winds 10 to 15 knots, diminishing to around
10 knots in the afternoon. Seas around 2 feet. Wave Detail: South
2 feet at 5 seconds.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds.
.SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 4 seconds. A chance of showers
and thunderstorms.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 1 foot at 4 seconds. A chance of
thunderstorms. A chance of showers in the evening, then showers
likely after midnight.
.SUNDAY...Southwest winds around 10 knots, becoming northeast in
the afternoon. Seas around 2 feet. A chance of thunderstorms.
Showers likely, mainly in the morning.
.SUNDAY NIGHT...East winds around 10 knots. Seas around 2 feet. A
chance of showers in the evening, then a chance of showers and
thunderstorms after midnight.
.MONDAY...Northeast winds around 10 knots. Seas around 2 feet. A
chance of thunderstorms. A chance of showers.
.MONDAY NIGHT...Northeast winds around 10 knots. Seas around
2 feet. A chance of showers.

Winds and seas higher in and near thunderstorms.

$$