857
FZUS54 KHGX 170550
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1250 AM CDT Tue Jun 17 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.

GMZ300-171830-
Synopsis for High Island to the Matagorda Ship Channel out
60 nautical miles including Galveston and Matagorda Bays
1250 AM CDT Tue Jun 17 2025

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

Light to occasionally moderate onshore flow is expected for the
next several days. From late Tuesday into Wednesday, winds will
increase to 15 to 20 knots and seas may rise to around 5 feet for
the offshore waters. Caution flags will be needed. There is a
daily risk of showers and thunderstorms through the upcoming
weekend. Higher winds and seas are possible in the vicinity of
any thunderstorm. Persistent onshore flow will lead to strong rip
currents along the Gulf facing coasts.

$$

GMZ335-171830-
Galveston Bay-
1250 AM CDT Tue Jun 17 2025

.REST OF TONIGHT...South winds around 10 knots. Bay waters smooth
to slightly choppy.
.TUESDAY...South winds 10 to 15 knots. Bay waters slightly
choppy. A slight chance of showers and thunderstorms in the late
morning and afternoon.
.TUESDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.WEDNESDAY...South winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers in the afternoon.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Bay waters
slightly choppy. A chance of showers early in the evening.
.THURSDAY...South winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.FRIDAY...South winds 5 to 10 knots. Bay waters smooth. A chance
of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds around 10 knots. Bay waters smooth to
slightly choppy.
.SATURDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms in the afternoon.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-171830-
Matagorda Bay-
1250 AM CDT Tue Jun 17 2025

.REST OF TONIGHT...South winds 10 to 15 knots. Bay waters
slightly choppy.
.TUESDAY...South winds 10 to 15 knots. Bay waters slightly
choppy.
.TUESDAY NIGHT...South winds 15 to 20 knots. Bay waters choppy.
.WEDNESDAY...South winds 15 to 20 knots. Bay waters choppy.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.THURSDAY...Southeast winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers and thunderstorms.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.FRIDAY...Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.SATURDAY...Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-171830-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
1250 AM CDT Tue Jun 17 2025

.REST OF TONIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: South 3 feet at 6 seconds.
.TUESDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 3 feet at 6 seconds. A slight chance of showers and
thunderstorms in the late morning and afternoon.
.TUESDAY NIGHT...South winds 15 to 20 knots. Seas 3 to 5 feet.
.WEDNESDAY...South winds 15 to 20 knots, easing to around
15 knots. Seas 3 to 5 feet. Wave Detail: South 4 feet at 5
seconds.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 5 feet.
Wave Detail: South 4 feet at 6 seconds.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet.
Wave Detail: Southeast 4 feet at 6 seconds. A chance of showers
and thunderstorms.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet.
.FRIDAY...Southeast winds around 10 knots. Seas 3 to 4 feet. A
chance of showers and thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
.SATURDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-171830-
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-
1250 AM CDT Tue Jun 17 2025

.REST OF TONIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 3 feet at 6 seconds. A slight chance of
showers and thunderstorms.
.TUESDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 3 feet at 6 seconds. A slight chance of showers and
thunderstorms.
.TUESDAY NIGHT...South winds around 15 knots, rising to 15 to
20 knots after midnight. Seas 3 to 5 feet. Wave Detail: South
4 feet at 6 seconds.
.WEDNESDAY...South winds 15 to 20 knots, becoming southeast
around 15 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave
Detail: South 4 feet at 5 seconds.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to
5 feet. Wave Detail: Southeast 4 feet at 6 seconds.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: Southeast 4 feet at 6 seconds. A chance of showers
and thunderstorms.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
5 feet.
.FRIDAY...Southeast winds around 10 knots. Seas 3 to 4 feet. A
chance of showers and thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
.SATURDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. A chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$