556
FZUS54 KHGX 050034
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
734 PM CDT Sat Oct 4 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.

GMZ300-051315-
734 PM CDT Sat Oct 4 2025

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

Scattered showers and isolated thunderstorms will continue over
the coastal waters through the weekend with the greatest coverage
likely staying in the offshore waters. Small craft should exercise
caution in the bays as easterly winds of 15 to 20 knots with
choppy waters. A Small Craft Advisory has been issued for the
Gulf waters this evening through early Sunday morning as frequent
wind gusts to 25 knots are expected and locally higher seas of 6
to 8 feet are possible. Conditions are expected to improve Sunday
afternoon into Monday, though small crafts will need to excercise
caution.

$$

GMZ335-051315-
Galveston Bay-
734 PM CDT Sat Oct 4 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT UNTIL 7 AM CDT
SUNDAY...

.REST OF TONIGHT...East winds 15 to 20 knots with gusts up to 25
knots. Bay waters choppy. A slight chance of showers.
.SUNDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots. Bay waters slightly choppy. A slight chance of showers.
.SUNDAY NIGHT...East winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms after midnight.
.MONDAY...East winds around 10 knots, becoming southeast in the
afternoon. Bay waters smooth to slightly choppy. A chance of
thunderstorms in the morning. A chance of showers.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.
.TUESDAY...East winds 5 to 10 knots. Bay waters smooth. A chance
of thunderstorms in the morning. A chance of showers.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots, becoming
northeast after midnight. Bay waters smooth, increasing to smooth
to slightly choppy after midnight.
.WEDNESDAY...Northeast winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers in the afternoon.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Bay waters slightly
choppy.
.THURSDAY...East winds 10 to 15 knots. Bay waters slightly
choppy.
.THURSDAY NIGHT...East winds 10 to 15 knots. Bay waters slightly
choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-051315-
Matagorda Bay-
734 PM CDT Sat Oct 4 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT UNTIL 7 AM CDT
SUNDAY...

.REST OF TONIGHT...East winds 15 to 20 knots, becoming northeast
around 15 knots. Bay waters choppy, diminishing to slightly
choppy. A slight chance of showers.
.SUNDAY...Northeast winds 10 to 15 knots, becoming east in the
afternoon. Bay waters slightly choppy. A slight chance of
showers.
.SUNDAY NIGHT...East winds 10 to 15 knots, diminishing to around
10 knots after midnight. Bay waters slightly choppy, diminishing
to smooth after midnight.
.MONDAY...East winds 5 to 10 knots, becoming southeast in the
afternoon. Bay waters smooth, increasing to smooth to slightly
choppy in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.
.TUESDAY...East winds around 10 knots, increasing to 10 to
15 knots in the afternoon. Bay waters smooth, increasing to
slightly choppy in the afternoon. A chance of showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers after midnight.
.WEDNESDAY...Northeast winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers in the evening.
.THURSDAY...Northeast winds around 15 knots. Bay waters slightly
choppy. A chance of showers in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots. Bay waters slightly
choppy.

$$

GMZ355-051315-
Coastal waters from High Island to Freeport TX out 20 NM-
734 PM CDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT SUNDAY...

.REST OF TONIGHT...East winds 20 to 25 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: East 6 feet at 6 seconds. A
slight chance of showers early this evening. A slight chance of
thunderstorms this evening. A chance of showers late this evening
and overnight.
.SUNDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: East 5 feet at 7 seconds. A chance of showers, mainly in
the morning.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 6 seconds. A chance of showers. A chance
of thunderstorms after midnight.
.MONDAY...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 5 seconds. A chance of showers and
thunderstorms in the morning.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. Wave Detail: East 2 feet at 5 seconds.
.TUESDAY...East winds around 10 knots. Seas around 2 feet. Wave
Detail: East 1 foot at 5 seconds. A chance of thunderstorms in
the morning. A chance of showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet. A
chance of showers after midnight.
.WEDNESDAY...Northeast winds 15 to 20 knots. Seas 2 to 3 feet. A
chance of showers.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 3 feet. A
chance of showers in the evening.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...East winds around 15 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ350-051315-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-
734 PM CDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT SUNDAY...

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

Winds and seas higher in and near thunderstorms.

$$

GMZ375-051315-
Waters from High Island to Freeport TX from 20 to 60 NM-
734 PM CDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT SUNDAY...

.REST OF TONIGHT...East winds 20 to 25 knots, diminishing to
around 20 knots late. Seas 5 to 6 feet, occasionally to 8 feet.
Wave Detail: East 6 feet at 7 seconds. A chance of showers. A
slight chance of thunderstorms late.
.SUNDAY...Northeast winds 15 to 20 knots with gusts up to
25 knots. Seas 3 to 5 feet. Wave Detail: East 5 feet at
7 seconds. A chance of showers with a slight chance of
thunderstorms.
.SUNDAY NIGHT...East winds 10 to 15 knots, becoming southeast
after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at
6 seconds. A chance of showers. A chance of thunderstorms after
midnight.
.MONDAY...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 6 seconds. A chance of showers in the
morning.
.MONDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet. Wave Detail: East 2 feet at 5 seconds. A chance of
showers after midnight.
.TUESDAY...East winds around 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 6 seconds. A chance of showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet. A
chance of showers.
.WEDNESDAY...Northeast winds 15 to 20 knots. Seas 2 to 3 feet. A
chance of showers.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas around 3 feet.
A chance of showers.
.THURSDAY...Northeast winds 15 to 20 knots. Seas 3 to 4 feet. A
chance of showers.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-051315-
Waters from Freeport to Matagorda Ship Channel TX from 20 to
60 NM-
734 PM CDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT SUNDAY...

.REST OF TONIGHT...East winds around 20 knots with gusts up to 25
knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail:
East 6 feet at 7 seconds. A chance of showers. A slight chance of
thunderstorms this evening. A slight chance of thunderstorms
late.
.SUNDAY...Northeast winds 10 to 15 knots. Seas 3 to 5 feet. Wave
Detail: East 5 feet at 7 seconds. A slight chance of
thunderstorms in the morning. A slight chance of showers.
.SUNDAY NIGHT...East winds 10 to 15 knots, becoming southeast
after midnight. Seas around 3 feet. Wave Detail: Northeast 3 feet
at 6 seconds. A chance of showers.
.MONDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 6 seconds.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. Wave Detail: East 2 feet at 6 seconds. A chance of
showers after midnight.
.TUESDAY...East winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 7 seconds and northeast 1 foot at
4 seconds. A chance of thunderstorms in the morning. A chance of
showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet. A
chance of showers.
.WEDNESDAY...Northeast winds 15 to 20 knots. Seas 2 to 3 feet. A
chance of showers.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 4 feet. A
chance of showers.
.THURSDAY...Northeast winds around 20 knots. Seas 3 to 4 feet. A
chance of showers.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet.

Winds and seas higher in and near thunderstorms.

$$