Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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FZUS54 KHGX 121126
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
626 AM CDT Sat Jul 12 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.

GMZ300-122345-
626 AM CDT Sat Jul 12 2025

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

A daily chance of showers and thunderstorms continues through the
Monday. Southerly winds in the 10 to 20 knot range and 3 to 5
foot seas, occasionally to 6 feet well offshore, will continue
today before decreasing tonight into Sunday. Rip current risk will
be elevated over the weekend. Light to moderate winds and 2 to 4
foot seas are expected during the first half of the upcoming week.
Rain chances are low on Tuesday and Wednesday.


$$

GMZ335-122345-
Galveston Bay-
626 AM CDT Sat Jul 12 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT UNTIL 1 PM CDT
THIS AFTERNOON...

.TODAY...South winds 15 knots gusting to 20 knots. Bay waters
choppy, diminishing to slightly choppy late. A chance of showers
and thunderstorms this morning, then showers and thunderstorms
likely this afternoon.
.TONIGHT...South winds around 10 knots. Bay waters smooth to
slightly choppy. A slight chance of showers and thunderstorms
after midnight.
.SUNDAY...South winds 5 to 10 knots. Bay waters smooth. A chance
of thunderstorms. A chance of showers in the morning, then
showers likely in the afternoon.
.SUNDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.MONDAY...South winds 5 to 10 knots. Bay waters smooth. A chance
of showers and thunderstorms.
.MONDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.TUESDAY...South winds around 10 knots, increasing to 10 to
15 knots in the afternoon. Bay waters smooth, increasing to
slightly choppy in the afternoon.
.TUESDAY NIGHT...South winds 10 to 15 knots, becoming southwest
around 10 knots after midnight. Bay waters slightly choppy,
diminishing to smooth after midnight.
.WEDNESDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Bay waters smooth.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.



$$

GMZ355-122345-
Coastal waters from High Island to Freeport TX out 20 NM-
626 AM CDT Sat Jul 12 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT UNTIL 1 PM CDT
THIS AFTERNOON...

.TODAY...South winds 15 to 20 knots, diminishing to around
15 knots with gusts up to 20 knots this afternoon. Seas 3 to
5 feet. Wave Detail: South 5 feet at 6 seconds. A chance of
showers and thunderstorms.
.TONIGHT...South winds 10 to 15 knots. Seas around 3 feet. Wave
Detail: South 3 feet at 6 seconds. A slight chance of showers and
thunderstorms after midnight.
.SUNDAY...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 6 seconds.
.MONDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 6 seconds. A chance of thunderstorms in
the morning. A chance of showers.
.MONDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 6 seconds.
.TUESDAY...South winds 5 to 10 knots. Seas 2 to 3 feet.
.TUESDAY NIGHT...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 around 10 knots. Seas around
2 feet.



$$

GMZ375-122345-
Waters from High Island to Freeport TX from 20 to 60 NM-
626 AM CDT Sat Jul 12 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT UNTIL 1 PM CDT
THIS AFTERNOON...

.TODAY...South winds 15 to 20 knots, diminishing to around
15 knots with gusts up to 20 knots this afternoon. Seas 3 to
5 feet. Wave Detail: South 4 feet at 6 seconds. A chance of
showers.
.TONIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 3 feet at 6 seconds. A chance of showers and
thunderstorms, mainly in the evening.
.SUNDAY...South winds around 10 knots. Seas around 3 feet. Wave
Detail: South 3 feet at 6 seconds. A chance of thunderstorms in
the morning. A chance of showers.
.SUNDAY NIGHT...Southeast winds around 10 knots. Seas around
3 feet. Wave Detail: Southeast 3 feet at 6 seconds.
.MONDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds. A chance of showers and
thunderstorms in the morning.
.MONDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 7 seconds.
.TUESDAY...South winds 5 to 10 knots. Seas 2 to 3 feet.
.TUESDAY NIGHT...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 around 10 knots. Seas around
2 feet.



$$

GMZ330-122345-
Matagorda Bay-
626 AM CDT Sat Jul 12 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT UNTIL 1 PM CDT
THIS AFTERNOON...

.TODAY...South winds 10 to 15 knots with gusts up to 20 knots.
Bay waters slightly choppy. A slight chance of showers and
thunderstorms early this morning, then a chance of showers and
thunderstorms late this morning and early afternoon. A slight
chance of showers and thunderstorms late.
.TONIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.SUNDAY...South winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers in the morning.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.MONDAY...South winds 5 to 10 knots. Bay waters smooth. A chance
of showers in the morning.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.TUESDAY...South winds around 10 knots, increasing to 10 to
15 knots in the afternoon. Bay waters smooth, increasing to
slightly choppy in the afternoon.
.TUESDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.WEDNESDAY...South winds around 10 knots, increasing to 10 to
15 knots in the afternoon. Bay waters smooth, increasing to
slightly choppy in the afternoon.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Bay waters
slightly choppy.



$$

GMZ350-122345-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-
626 AM CDT Sat Jul 12 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT UNTIL 1 PM CDT
THIS AFTERNOON...

.TODAY...South winds 15 to 20 knots, diminishing to around
15 knots this afternoon. Seas 3 to 5 feet. Wave Detail: South
5 feet at 6 seconds. A slight chance of showers and thunderstorms
early this morning, then a chance of showers and thunderstorms
late this morning and early afternoon. A slight chance of showers
and thunderstorms late.
.TONIGHT...South winds 10 to 15 knots with gusts up to 20 knots.
Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 6 seconds. A
slight chance of showers and thunderstorms after midnight.
.SUNDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 6 seconds. A chance of showers.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
3 feet. Wave Detail: Southeast 3 feet at 6 seconds.
.MONDAY...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds. A chance of showers in the
morning.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 6 seconds.
.TUESDAY...South winds 10 to 15 knots. Seas around 3 feet.
.TUESDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet.
.WEDNESDAY...South winds 10 to 15 knots. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.



$$

GMZ370-122345-
Waters from Freeport to Matagorda Ship Channel TX from 20 to
60 NM-
626 AM CDT Sat Jul 12 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT UNTIL 1 PM CDT
THIS AFTERNOON...

.TODAY...South winds 10 to 15 knots with gusts up to 20 knots.
Seas 4 to 5 feet. Wave Detail: Southeast 5 feet at 6 seconds. A
slight chance of showers and thunderstorms this morning, then a
chance of showers and thunderstorms early this afternoon. A
slight chance of showers and thunderstorms late.
.TONIGHT...Southeast winds 10 to 15 knots. Seas around 4 feet.
Wave Detail: Southeast 3 feet at 6 seconds. A slight chance of
showers and thunderstorms after midnight.
.SUNDAY...South winds around 10 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 6 seconds. A chance of showers in the
morning.
.SUNDAY NIGHT...Southeast winds around 10 knots. Seas around
3 feet. Wave Detail: Southeast 3 feet at 6 seconds.
.MONDAY...South winds around 10 knots. Seas around 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds. A chance of showers in the
morning.
.MONDAY NIGHT...Southeast winds around 10 knots. Seas around
3 feet. Wave Detail: Southeast 3 feet at 7 seconds.
.TUESDAY...South winds around 10 knots. Seas around 3 feet.
.TUESDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet.
.WEDNESDAY...South winds around 10 knots. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet.



$$