902
FZUS54 KHGX 280043
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
743 PM CDT Wed Aug 27 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.

GMZ300-281315-
743 PM CDT Wed Aug 27 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 on Friday into the weekend. Winds
may switch to a more northerly direction by Sunday behind the
front.

$$

GMZ335-281315-
Galveston Bay-
743 PM CDT Wed Aug 27 2025

.REST OF TONIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. A chance of rain with a slight chance of thunderstorms.
.THURSDAY...South winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds around 10 knots. Bay waters smooth
to slightly choppy.
.FRIDAY...Southwest winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.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...East winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.SUNDAY...Northeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters smooth.
A chance of thunderstorms in the evening. A chance of showers.
.MONDAY...Northeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers.
.MONDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-281315-
Matagorda Bay-
743 PM CDT Wed Aug 27 2025

.REST OF TONIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth.
.THURSDAY...South winds 5 to 10 knots. Bay waters smooth. A
slight chance of showers and thunderstorms in the morning.
.THURSDAY NIGHT...South winds around 10 knots. Bay waters smooth
to 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. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. A chance of showers and thunderstorms after midnight.
.SUNDAY...East 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 and thunderstorms in the evening, then a chance
of showers after midnight.
.MONDAY...Northeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers.
.MONDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-281315-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
743 PM CDT Wed Aug 27 2025

.REST OF TONIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 1 foot at 4 seconds. A chance of
rain with a slight chance of thunderstorms.
.THURSDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 4 seconds. A chance of thunderstorms.
A chance of showers, mainly in the morning.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 2 feet at 4 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. A chance of showers and
thunderstorms after midnight.
.SATURDAY...Southwest winds around 10 knots, becoming south in
the afternoon. Seas around 2 feet. Wave Detail: Southwest 2 feet
at 4 seconds. A chance of thunderstorms. Showers likely, mainly
in the morning.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. A chance of showers. A chance of thunderstorms after
midnight.
.SUNDAY...Northeast winds around 10 knots. Seas around 2 feet. A
chance of thunderstorms. A chance of showers.
.SUNDAY NIGHT...East winds around 10 knots. Seas around 2 feet. A
chance of showers.
.MONDAY...Northeast winds around 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms in the morning.
.MONDAY NIGHT...Northeast winds around 10 knots. Seas around
2 feet. A chance of showers after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-281315-
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-
743 PM CDT Wed Aug 27 2025

.REST OF TONIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 1 foot at 4 seconds. A chance of
rain with isolated thunderstorms until early morning, then a
slight chance of showers and thunderstorms late.
.THURSDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 5 seconds. A chance of showers and
thunderstorms.
.THURSDAY NIGHT...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 2 to 3 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. A chance of showers after
midnight.
.SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 5 seconds. A chance of
thunderstorms. Showers likely, mainly in the morning.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. A chance of showers. A chance of thunderstorms after
midnight.
.SUNDAY...Northeast winds around 10 knots. Seas around 2 feet. A
chance of thunderstorms. A chance of showers.
.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 in the morning. A chance of showers.
.MONDAY NIGHT...Northeast winds 5 to 10 knots. Seas around
2 feet. A chance of showers after midnight.

Winds and seas higher in and near thunderstorms.

$$