Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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FZUS54 KHGX 050543
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1243 AM CDT Sun Oct 5 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.

GMZ300-051815-
1243 AM CDT Sun Oct 5 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.

$$

GMZ335-051815-
Galveston Bay-
1243 AM CDT Sun Oct 5 2025

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

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

$$

GMZ330-051815-
Matagorda Bay-
1243 AM CDT Sun Oct 5 2025

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

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

$$

GMZ355-051815-
Coastal waters from High Island to Freeport TX out 20 NM-
1243 AM CDT Sun Oct 5 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING...
...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT FROM 7 AM CDT
THIS MORNING THROUGH THIS EVENING...

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

$$

GMZ350-051815-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-
1243 AM CDT Sun Oct 5 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING...
...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT FROM 7 AM CDT
THIS MORNING THROUGH THIS EVENING...

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

$$

GMZ375-051815-
Waters from High Island to Freeport TX from 20 to 60 NM-
1243 AM CDT Sun Oct 5 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING...
...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT FROM 7 AM CDT
THIS MORNING THROUGH THIS EVENING...

.REST OF TONIGHT...East winds 20 to 25 knots, diminishing to
around 20 knots late. Seas 6 to 7 feet, occasionally to 9 feet.
Wave Detail: East 7 feet at 7 seconds. A chance of showers.
.SUNDAY...Northeast winds 15 to 20 knots, diminishing to around
15 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8
feet. Wave Detail: East 6 feet at 7 seconds. A chance of showers.
.SUNDAY NIGHT...East winds 10 to 15 knots, becoming southeast
after midnight. Seas 3 to 4 feet. Wave Detail: East 4 feet at
6 seconds. A chance of showers.
.MONDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 6 seconds.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: East 2 feet at 5 seconds.
.TUESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 6 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet. A
chance of showers after midnight.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 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 around 15 knots. Seas 3 to 4 feet.

$$

GMZ370-051815-
Waters from Freeport to Matagorda Ship Channel TX from 20 to
60 NM-
1243 AM CDT Sun Oct 5 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING...
...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT FROM 7 AM CDT
THIS MORNING THROUGH THIS EVENING...

.REST OF TONIGHT...East winds around 20 knots, becoming northeast
around 20 knots late. Seas 5 to 7 feet, occasionally to 9 feet.
Wave Detail: East 6 feet at 7 seconds. A chance of showers. A
slight chance of thunderstorms late.
.SUNDAY...Northeast winds around 15 knots with gusts up to 20
knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
East 6 feet at 7 seconds. A chance of showers. A slight chance of
thunderstorms in the afternoon.
.SUNDAY NIGHT...East winds around 10 knots, becoming southeast
after midnight. Seas 3 to 4 feet. Wave Detail: Northeast 4 feet
at 6 seconds. A chance of showers after midnight.
.MONDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 6 seconds. A chance of showers in the
morning.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: East 2 feet at 6 seconds.
.TUESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 7 seconds and northeast 1 foot at
4 seconds. A chance of showers.
.TUESDAY NIGHT...East winds around 10 knots. Seas around 2 feet.
A chance of showers after midnight.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers.
.WEDNESDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet.
A chance of showers.
.THURSDAY...Northeast winds 15 to 20 knots. Seas around 4 feet. A
chance of showers.
.THURSDAY NIGHT...East winds around 15 knots. Seas 4 to 5 feet.

Winds and seas higher in and near thunderstorms.

$$