412
FZUS54 KHGX 290035
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
735 PM 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.

GMZ300-291330-
735 PM 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
Saturday. A frontal boundary is expected to enhance shower and
thunderstorm activity this weekend. Showers and storms could reach
the coast as early as late afternoon or evening on Friday. Winds
are expected to 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.


$$

GMZ335-291330-
Galveston Bay-
735 PM CDT Thu Aug 28 2025

.REST OF TONIGHT...South winds around 10 knots. Bay waters smooth
to slightly choppy.
.FRIDAY...South winds 5 to 10 knots. Bay waters smooth. A slight
chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.SATURDAY...Southwest winds 5 to 10 knots, becoming southeast in
the afternoon. Bay waters smooth. A chance of showers and
thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. A chance of showers and thunderstorms.
.SUNDAY...Northeast winds 5 to 10 knots. Bay waters smooth.
Showers likely with a chance of thunderstorms in the morning,
then showers and thunderstorms likely in the afternoon.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters smooth.
A chance of showers. A chance of 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.
A chance of showers.
.TUESDAY...Northeast winds 5 to 10 knots. Bay waters smooth.
.TUESDAY NIGHT...East winds 5 to 10 knots, becoming north after
midnight. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-291330-
Matagorda Bay-
735 PM CDT Thu Aug 28 2025

.REST OF TONIGHT...South winds 10 to 15 knots. Bay waters
slightly choppy.
.FRIDAY...South winds 5 to 10 knots. Bay waters smooth.
.FRIDAY NIGHT...South winds around 10 knots. Bay waters smooth to
slightly choppy.
.SATURDAY...South winds 5 to 10 knots. Bay waters smooth.
.SATURDAY NIGHT...Southeast 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 and thunderstorms.
.SUNDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth. A
chance of showers. A chance of thunderstorms after midnight.
.MONDAY...Northeast winds 5 to 10 knots. 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 and
thunderstorms.
.TUESDAY...Northeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms in the morning.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots, becoming east
after midnight. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-291330-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
735 PM CDT Thu Aug 28 2025

.REST OF TONIGHT...South winds 10 to 15 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 4 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 4 seconds. A slight chance of thunderstorms. A slight
chance of showers.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 4 seconds.
.SATURDAY...South 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...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A chance of
showers. A chance of thunderstorms after midnight.
.SUNDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 4 seconds. 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. A chance of 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. A chance of thunderstorms after
midnight.
.TUESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms in the morning.
.TUESDAY NIGHT...East winds around 10 knots, becoming northeast
after midnight. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-291330-
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-
735 PM CDT Thu Aug 28 2025

.REST OF TONIGHT...South winds 10 to 15 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.FRIDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds. A slight chance of showers
and thunderstorms.
.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: South 2 feet at 5 seconds. A chance of thunderstorms
in the morning. A chance of showers.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A chance of
showers and thunderstorms after midnight.
.SUNDAY...Southeast winds 5 to 10 knots, becoming northeast in
the afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet
at 4 seconds. A chance of thunderstorms. Showers likely, mainly
in the morning.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. A
chance of showers. A chance of thunderstorms after midnight.
.MONDAY...Northeast winds around 10 knots. Seas around 2 feet. A
chance of thunderstorms. Showers likely, mainly in the morning.
.MONDAY NIGHT...Northeast winds around 10 knots. Seas around
2 feet. A chance of showers.
.TUESDAY...Northeast winds around 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms in the morning.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$