Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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773
FZUS54 KHGX 160041
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
741 PM CDT Tue Jul 15 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.

GMZ300-161315-
741 PM CDT Tue Jul 15 2025

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

Onshore winds in the 8-15 kt range and 2-3 foot seas are in the
forecast through the end of the week. Rain chances will decrease
as we head into the midweek time period as drier air filters into
the area. Later in the week, rain chances increase again 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.

$$

GMZ335-161315-
Galveston Bay-
741 PM CDT Tue Jul 15 2025

.REST OF TONIGHT...South winds 10 to 15 knots with gusts up to 20
knots, becoming southwest around 10 knots. Bay waters smooth.
.WEDNESDAY...South winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters
smooth.
.THURSDAY...West winds around 5 knots, becoming south in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms in the afternoon.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters
smooth. A chance of showers after midnight.
.FRIDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Bay waters smooth. Showers and thunderstorms likely.
.FRIDAY NIGHT...South winds around 10 knots. Bay waters smooth to
slightly choppy.
.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.

$$

GMZ330-161315-
Matagorda Bay-
741 PM CDT Tue Jul 15 2025

.REST OF TONIGHT...South winds 10 to 15 knots with gusts up to 20
knots. Bay waters slightly choppy.
.WEDNESDAY...South winds 10 to 15 knots. Bay waters slightly
choppy.
.WEDNESDAY NIGHT...South winds 10 to 15 knots, diminishing to
around 10 knots after midnight. Bay waters slightly choppy,
diminishing to smooth after midnight.
.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 and thunderstorms in the morning.
.FRIDAY NIGHT...South winds around 10 knots. Bay waters smooth to
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.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-161315-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
741 PM CDT Tue Jul 15 2025

.REST OF TONIGHT...South winds 10 to 15 knots with gusts up to 20
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, diminishing to
around 10 knots after midnight. Seas 2 to 3 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 around 2 feet.
Wave Detail: South 1 foot at 4 seconds. A chance of showers after
midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 4 seconds. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
.SATURDAY...South winds 10 to 15 knots. Seas 2 to 3 feet.
.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.

$$

GMZ370-375-161315-
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-
741 PM CDT Tue Jul 15 2025

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

$$