Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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FZUS54 KHGX 021154
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
654 AM CDT Sat Aug 2 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.

GMZ300-030015-
654 AM CDT Sat Aug 2 2025

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

Persistent low seas and generally light, but occasionally
moderate winds driven by the daily seabreeze and landbreeze cycle
will continue to prevail. Expect daily opportunities for isolated
to scattered showers and thunderstorms into the new week.
Stronger winds and rougher seas can occur in the vicinity of the
thunderstorms. In some cases, thunderstorm winds can extend far
from the associated storm.

$$

GMZ335-030015-
Galveston Bay-
654 AM CDT Sat Aug 2 2025

.TODAY...West winds 5 to 10 knots, becoming south late. Bay
waters smooth. A chance of showers and thunderstorms.
.TONIGHT...Southwest winds 5 to 10 knots, becoming northwest
after midnight. Bay waters smooth. A chance of thunderstorms. A
chance of showers.
.SUNDAY...North winds 5 to 10 knots, becoming east in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Bay waters smooth.
.MONDAY...North winds around 5 knots, becoming east in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms.
.MONDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Bay waters smooth.
.TUESDAY...North winds around 5 knots, becoming southeast in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth.
.WEDNESDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-030015-
Matagorda Bay-
654 AM CDT Sat Aug 2 2025

.TODAY...West winds 5 to 10 knots, becoming south late. Bay
waters smooth, increasing to smooth to slightly choppy late. A
slight chance of showers and thunderstorms early this afternoon.
A chance of showers and thunderstorms late.
.TONIGHT...South winds 5 to 10 knots. Bay waters smooth. A slight
chance of showers and thunderstorms.
.SUNDAY...West winds around 5 knots, becoming south in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms in the morning.
.SUNDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.MONDAY...South winds 5 to 10 knots. Bay waters smooth. A chance
of showers and thunderstorms in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.
.TUESDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth.
.WEDNESDAY...South winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-030015-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
654 AM CDT Sat Aug 2 2025

.TODAY...West winds 5 to 10 knots, becoming southwest late. Seas
around 2 feet this morning, then 1 foot or less. Wave Detail:
Southwest 1 foot at 4 seconds. A chance of showers and
thunderstorms this morning, then a slight chance of showers and
thunderstorms early this afternoon. A chance of showers and
thunderstorms late.
.TONIGHT...West winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southwest 1 foot at 4 seconds. A chance of showers and
thunderstorms.
.SUNDAY...Northwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 1 foot or less. Wave Detail: West 1 foot at
4 seconds. A chance of showers and thunderstorms.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: South 1 foot at 4 seconds. A chance of showers after
midnight.
.MONDAY...West winds 5 to 10 knots, becoming southeast in the
afternoon. Seas 1 foot or less. Wave Detail: Southwest 1 foot at
4 seconds. A chance of showers and thunderstorms.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: South 1 foot at 4 seconds.
.TUESDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Seas 1 foot or less. A chance of showers and
thunderstorms.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less.
.WEDNESDAY...South winds 5 to 10 knots. Seas 1 foot or less. A
chance of showers and thunderstorms in the morning.
.WEDNESDAY NIGHT...South winds around 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-030015-
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-
654 AM CDT Sat Aug 2 2025

.TODAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southwest 1 foot at 3 seconds. A slight chance of showers
and thunderstorms early this morning. A chance of showers and
thunderstorms late this morning, then a slight chance of showers
and thunderstorms this afternoon.
.TONIGHT...West winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southwest 1 foot at 4 seconds. A slight chance of showers
and thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.SUNDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: West 1 foot at 3 seconds. Showers likely with a chance of
thunderstorms in the morning, then a chance of showers in the
afternoon.
.SUNDAY NIGHT...South winds around 5 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 4 seconds. A chance of showers
after midnight.
.MONDAY...West winds around 5 knots, becoming northeast in the
afternoon. Seas 1 foot or less. Wave Detail: Southwest 1 foot at
4 seconds and east 1 foot at 5 seconds. A chance of showers and
thunderstorms.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: South 1 foot at 4 seconds and east 1 foot at
5 seconds. A chance of showers and thunderstorms after midnight.
.TUESDAY...East winds around 5 knots. Seas 1 foot or less. A
chance of showers and thunderstorms.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less.
.WEDNESDAY...South winds 5 to 10 knots. Seas 1 foot or less. A
chance of showers and thunderstorms in the morning.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or
less, then around 2 feet after midnight.

Winds and seas higher in and near thunderstorms.

$$