479
FZUS54 KHGX 200038
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
738 PM CDT Sat Jul 19 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.

GMZ300-201315-
738 PM CDT Sat Jul 19 2025

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

Isolated showers and storms will be possible through late this
afternoon, but then mostly dry conditions are expected to persist
through at least midweek next week as high pressure builds across
the region. Expect low seas and light to occasionally moderate
onshore winds to prevail. The next best rain and storm chances
will be after Thursday.

$$

GMZ335-201315-
Galveston Bay-
738 PM CDT Sat Jul 19 2025

.REST OF TONIGHT...South winds 10 to 15 knots with gusts up to
20 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.
.MONDAY...South winds 5 to 10 knots. Bay waters smooth.
.MONDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.TUESDAY...South winds 5 to 10 knots. Bay waters smooth.
.TUESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY...West winds around 5 knots, becoming south in the
afternoon. Bay waters smooth.
.WEDNESDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Bay waters smooth.
.THURSDAY...Northwest winds around 5 knots, becoming southeast in
the afternoon. Bay waters smooth. A chance of showers and
thunderstorms in the afternoon.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-201315-
Matagorda Bay-
738 PM CDT Sat Jul 19 2025

.REST OF TONIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Bay waters slightly choppy.
.SUNDAY...South winds 10 to 15 knots with gusts up to 20 knots.
Bay waters slightly choppy.
.SUNDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Bay waters slightly choppy.
.MONDAY...South winds 10 to 15 knots with gusts up to 20 knots.
Bay waters slightly choppy.
.MONDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Bay waters slightly choppy.
.TUESDAY...South winds 10 to 15 knots. Bay waters slightly
choppy.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to
20 knots, becoming south around 10 knots after midnight. Bay
waters slightly choppy, diminishing to smooth after midnight.
.WEDNESDAY...South winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.THURSDAY...Southwest winds around 5 knots, becoming southeast in
the afternoon. Bay waters smooth.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.

$$

GMZ350-355-201315-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
738 PM CDT Sat Jul 19 2025

.REST OF TONIGHT...South winds 10 to 15 knots with gusts up to
25 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at
5 seconds.
.SUNDAY...South winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds.
.SUNDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at
5 seconds.
.MONDAY...South winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds.
.MONDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
5 seconds.
.TUESDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 6 seconds.
.TUESDAY NIGHT...South winds around 10 knots with gusts up to
20 knots. Seas 2 to 3 feet.
.WEDNESDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
.THURSDAY...West winds 5 to 10 knots, becoming southeast in the
afternoon. Seas around 2 feet.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. A chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-201315-
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-
738 PM CDT Sat Jul 19 2025

.REST OF TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 5 seconds.
.SUNDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 5 seconds.
.SUNDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at
5 seconds.
.MONDAY...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds.
.MONDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
6 seconds.
.TUESDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds.
.TUESDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet.
.WEDNESDAY...Southwest winds 5 to 10 knots, becoming southeast in
the afternoon. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
.THURSDAY...West winds around 5 knots, becoming northeast in the
afternoon. Seas around 2 feet. A chance of showers and
thunderstorms in the morning.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet. A chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$