Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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597
FZUS54 KHGX 061055
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
555 AM CDT Sun Jul 6 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.

GMZ300-062330-
Synopsis for High Island to the Matagorda Ship Channel out
60 nautical miles including Galveston and Matagorda Bays
555 AM CDT Sun Jul 6 2025

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

Light to occasionally moderate onshore winds and relatively low seas
will prevail over the next week. However, winds will occasionally
be gusty, with gusts of 15 to 20 knots possible at times. The
daily risk of isolated to scattered showers and thunderstorms will
continue through the forecast period. The next best chance of
isolated to scattered showers and storms will be Monday and
Tuesday.

$$

GMZ335-062330-
Galveston Bay-
555 AM CDT Sun Jul 6 2025

.TODAY...South winds 5 to 10 knots. Bay waters smooth. A slight
chance of showers and thunderstorms this afternoon.
.TONIGHT...South winds 5 to 10 knots. Bay waters smooth.
.MONDAY...South winds 5 to 10 knots. Bay waters smooth. A chance
of showers. A chance of thunderstorms in the late morning and
afternoon.
.MONDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms early in the evening.
.TUESDAY...South winds 5 to 10 knots. Bay waters smooth. A chance
of showers and thunderstorms.
.TUESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY...South winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Southwest winds around 10 knots. Bay waters
smooth to slightly choppy.
.THURSDAY...Southwest winds around 10 knots, becoming south 10 to
15 knots in the afternoon. Bay waters smooth, rising to slightly
choppy in the afternoon. A chance of showers and thunderstorms in
the afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-062330-
Matagorda Bay-
555 AM CDT Sun Jul 6 2025

.TODAY...Southeast winds around 10 knots, rising to 10 to
15 knots late. Bay waters smooth, rising to slightly choppy late.
A slight chance of showers and thunderstorms late.
.TONIGHT...South winds 10 to 15 knots, easing to around 10 knots
late. Bay waters slightly choppy, easing to smooth late.
.MONDAY...South winds 5 to 10 knots. Bay waters smooth.
.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 in the morning.
.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 10 to 15 knots. Bay waters
slightly choppy.
.THURSDAY...South winds 10 to 15 knots. Bay waters slightly
choppy.
.THURSDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-062330-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
555 AM CDT Sun Jul 6 2025

.TODAY...South winds 5 to 10 knots. Seas around 3 feet this
morning, then around 2 feet or less. Wave Detail: South 2 feet at
5 seconds. A slight chance of showers and thunderstorms late.
.TONIGHT...South winds around 10 knots. Seas around 2 feet or
less. Wave Detail: South 2 feet at 5 seconds.
.MONDAY...South winds 5 to 10 knots. Seas around 2 feet or less.
Wave Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms early in the morning.
.MONDAY NIGHT...South winds around 10 knots. Seas around 2 feet
or less. Wave Detail: South 2 feet at 5 seconds.
.TUESDAY...South winds 5 to 10 knots. Seas around 3 feet in the
morning, then around 2 feet or less. Wave Detail: South 2 feet at
5 seconds. A chance of showers and thunderstorms in the morning.
.TUESDAY NIGHT...South winds around 10 knots. Seas around 2 feet
or less, then around 3 feet after midnight. Wave Detail: South
2 feet at 6 seconds, becoming southeast 2 feet at 6 seconds.
.WEDNESDAY...South winds 5 to 10 knots. Seas around 3 feet. A
chance of showers and thunderstorms in the morning.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas around
3 feet.
.THURSDAY...Southwest winds 10 to 15 knots. Seas around 3 feet.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-062330-
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-
555 AM CDT Sun Jul 6 2025

.TODAY...Southeast winds 5 to 10 knots. Seas around 3 feet. Wave
Detail: South 2 feet at 5 seconds and southeast 1 foot at
9 seconds. A slight chance of showers and thunderstorms this
afternoon.
.TONIGHT...South winds around 10 knots. Seas around 3 feet in the
evening, then around 2 feet or less. Wave Detail: South 2 feet at
5 seconds. A slight chance of showers and thunderstorms early in
the evening.
.MONDAY...South winds 5 to 10 knots. Seas around 2 feet or less.
Wave Detail: South 2 feet at 5 seconds. A chance of showers and
thunderstorms late in the morning.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet
or less, then around 3 feet after midnight. Wave Detail: South
2 feet at 5 seconds.
.TUESDAY...Southeast winds 5 to 10 knots. Seas around 3 feet.
Wave Detail: South 2 feet at 6 seconds. A chance of showers and
thunderstorms in the morning.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
3 feet. Wave Detail: Southeast 3 feet at 6 seconds.
.WEDNESDAY...South winds 5 to 10 knots. Seas around 3 feet. A
chance of showers and thunderstorms in the morning.
.WEDNESDAY NIGHT...South winds around 10 knots, rising to 10 to
15 knots after midnight. Seas around 3 feet.
.THURSDAY...Southwest winds around 10 knots. Seas around 3 feet.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet.

Winds and seas higher in and near thunderstorms.

$$