189
FZUS54 KHGX 220431
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1131 PM CDT Sat Jun 21 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.

GMZ300-221730-
Synopsis for High Island to the Matagorda Ship Channel out
60 nautical miles including Galveston and Matagorda Bays
1131 PM CDT Sat Jun 21 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 3 to 5 foot seas
should generally prevail for the next several days. Isolated
showers and storms, similar to the past few days, will also
continue followed by increasing rain chances deeper into the new
week.

$$

GMZ335-221730-
Galveston Bay-
1131 PM CDT Sat Jun 21 2025

.OVERNIGHT...Southeast winds 10 to 15 knots. Bay waters slightly
choppy.
.SUNDAY...Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A slight chance of showers and thunderstorms in the late
morning and afternoon.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.MONDAY...Southeast winds around 10 knots, rising to 10 to
15 knots late. Bay waters smooth, rising to slightly choppy late.
A chance of showers and thunderstorms in the late morning and
afternoon.
.MONDAY NIGHT...Southeast winds 10 to 15 knots, easing to around
10 knots after midnight. Bay waters smooth. A chance of showers
and thunderstorms early in the evening.
.TUESDAY...East winds 5 to 10 knots. Bay waters smooth. A chance
of showers and thunderstorms in the morning, then showers and
thunderstorms likely in the afternoon.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. A chance of showers and thunderstorms after midnight.
.WEDNESDAY...Southeast winds 5 to 10 knots. Bay waters smooth.
Showers likely with a chance of thunderstorms in the morning,
then showers with thunderstorms likely in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth.
.THURSDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-221730-
Matagorda Bay-
1131 PM CDT Sat Jun 21 2025

.OVERNIGHT...Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A slight chance of showers late.
.SUNDAY...Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A slight chance of showers and thunderstorms in the late
morning and afternoon.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.MONDAY...Southeast winds around 10 knots, rising to 10 to
15 knots late. Bay waters smooth, rising to slightly choppy late.
.MONDAY NIGHT...Southeast winds 10 to 15 knots, easing to around
10 knots after midnight. Bay waters slightly choppy, easing to
smooth after midnight.
.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. A chance of showers and thunderstorms after midnight.
.WEDNESDAY...Southeast winds 5 to 10 knots. Bay waters smooth.
Showers likely. A chance of thunderstorms in the morning, then
thunderstorms likely in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots, easing to
around 10 knots after midnight. Bay waters slightly choppy,
easing to smooth after midnight. A chance of showers and
thunderstorms after midnight.
.THURSDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of thunderstorms. Showers likely, mainly in the morning.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-221730-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
1131 PM CDT Sat Jun 21 2025

.OVERNIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 4 feet at 7 seconds.
.SUNDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 7 seconds. A slight chance of showers
and thunderstorms in the late morning and afternoon.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 3 feet at 6 seconds.
.MONDAY...Southeast winds 10 to 15 knots. Seas around 3 feet.
Wave Detail: Southeast 3 feet at 6 seconds.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
3 feet. Wave Detail: Southeast 3 feet at 6 seconds.
.TUESDAY...East winds 5 to 10 knots. Seas around 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds. A chance of thunderstorms.
Showers likely, mainly in the morning.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
3 feet. A chance of showers and thunderstorms after midnight.
.WEDNESDAY...Southeast winds around 10 knots. Seas around 3 feet.
Showers likely with a chance of thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
3 feet. A chance of showers and thunderstorms after midnight.
.THURSDAY...Southeast winds 5 to 10 knots. Seas around 3 feet. A
chance of thunderstorms. Showers likely, mainly in the morning.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas around
3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-221730-
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-
1131 PM CDT Sat Jun 21 2025

.OVERNIGHT...Southeast winds around 15 knots. Seas 3 to 5 feet.
Wave Detail: Southeast 4 feet at 7 seconds.
.SUNDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 7 seconds. A slight chance of showers
and thunderstorms in the late morning and afternoon.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 4 feet at 6 seconds.
.MONDAY...Southeast winds around 10 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 6 seconds.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
3 feet. Wave Detail: South 3 feet at 6 seconds. A chance of
showers after midnight. A chance of thunderstorms late.
.TUESDAY...East winds 5 to 10 knots. Seas around 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds. A chance of thunderstorms.
Showers likely, mainly in the morning.
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas around
3 feet. Showers likely with a chance of thunderstorms after
midnight.
.WEDNESDAY...Southeast winds around 10 knots. Seas around 3 feet.
A chance of thunderstorms. Showers.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas around
3 feet. A chance of showers and thunderstorms after midnight.
.THURSDAY...Southeast winds around 10 knots. Seas 3 to 4 feet. A
chance of thunderstorms. Showers likely, mainly in the morning.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas around
3 feet. A chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$