409
FZUS54 KHGX 160513
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1213 AM CDT Wed Jul 16 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.

GMZ300-161815-
1213 AM CDT Wed Jul 16 2025

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

Onshore winds in the 5 to 10 knots with gusts to 15 and seas 2 to
4 foot seas are in the forecast through the end of the week. Rain
chances will decrease today through early Thursday as drier air
filters into the area. However, rain chances increase late
Thursday as a disturbance approaches from the east. NHC continues
to monitor the northeast and north central Gulf for some potential
tropical development in the coming days. Mariners are advised to
check the forecast for the updates due to uncertainties regarding
the tropical disturbance.

$$

GMZ335-161815-
Galveston Bay-
1213 AM CDT Wed Jul 16 2025

.REST OF TONIGHT...South winds around 10 knots. Bay waters smooth
to slightly choppy.
.WEDNESDAY...South winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters
smooth.
.THURSDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Bay waters smooth.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters
smooth. A chance of showers and thunderstorms after midnight.
.FRIDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Bay waters smooth. Showers likely with a chance of
thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.FRIDAY NIGHT...South winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers and thunderstorms after
midnight.
.SATURDAY...South winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms.
.SATURDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.SUNDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
.SUNDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-161815-
Matagorda Bay-
1213 AM CDT Wed Jul 16 2025

.REST OF TONIGHT...South winds 10 to 15 knots. Bay waters
slightly choppy.
.WEDNESDAY...South winds 10 to 15 knots. Bay waters slightly
choppy.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Bay waters
slightly choppy.
.THURSDAY...South winds 5 to 10 knots. Bay waters smooth.
.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 in the morning.
.FRIDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.SATURDAY...South winds 10 to 15 knots. Bay waters slightly
choppy.
.SATURDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.SUNDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
.SUNDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.

$$

GMZ350-355-161815-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
1213 AM CDT Wed Jul 16 2025

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

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-161815-
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-
1213 AM CDT Wed Jul 16 2025

.REST OF TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
.WEDNESDAY...South winds 5 to 10 knots. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
.THURSDAY...Southwest winds 5 to 10 knots, becoming southeast in
the afternoon. Seas around 2 feet. Wave Detail: Southwest 1 foot
at 4 seconds.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: Southwest 1 foot at 4 seconds. A chance of showers
after midnight.
.FRIDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 1 foot at 4 seconds. A chance of thunderstorms. A
chance of showers.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet.
.SATURDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers and thunderstorms in the morning.
.SATURDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet.
.SUNDAY...South winds 10 to 15 knots. Seas 2 to 3 feet.
.SUNDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$