Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
346
FZUS54 KHGX 040524
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1224 AM 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.

GMZ300-041815-
1224 AM 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 Saturday afternoon 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
into Monday.

$$

GMZ335-041815-
Galveston Bay-
1224 AM CDT Sat Oct 4 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT THROUGH LATE
TONIGHT...

.REST OF TONIGHT...East winds around 15 knots. Bay waters
slightly choppy.
.SATURDAY...East winds 15 to 20 knots. Bay waters choppy.
.SATURDAY NIGHT...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. A chance of showers.
.SUNDAY NIGHT...East winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers after midnight.
.MONDAY...East winds around 10 knots. Bay waters smooth to
slightly choppy. 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 showers. A chance of thunderstorms in the afternoon.
.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...Northeast winds 10 to 15 knots. Bay waters
slightly choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-041815-
Matagorda Bay-
1224 AM CDT Sat Oct 4 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT THROUGH LATE
TONIGHT...

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

Winds and waves higher in and near thunderstorms.

$$

GMZ355-041815-
Coastal waters from High Island to Freeport TX out 20 NM-
1224 AM CDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

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

Winds and seas higher in and near thunderstorms.

$$

GMZ350-041815-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-
1224 AM CDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

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

Winds and seas higher in and near thunderstorms.

$$

GMZ375-041815-
Waters from High Island to Freeport TX from 20 to 60 NM-
1224 AM CDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.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 with a slight
chance of thunderstorms.
.SATURDAY...Northeast winds 20 to 25 knots with gusts up to
30 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail:
East 6 feet at 7 seconds. A chance of showers with a slight
chance of thunderstorms.
.SATURDAY NIGHT...East winds 20 to 25 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: East 6 feet at 7 seconds. A
chance of showers in the evening, then showers likely after
midnight.
.SUNDAY...East winds 15 to 20 knots, diminishing to around
15 knots in the afternoon. Seas 3 to 5 feet. Wave Detail: East
5 feet at 7 seconds. A chance of showers.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: East 3 feet at 6 seconds. A chance of showers.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 6 seconds. A chance of showers.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet.
.TUESDAY...East winds 5 to 10 knots. Seas around 2 feet. A chance
of showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet. A
chance of showers.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers.
.WEDNESDAY NIGHT...Northeast winds around 15 knots, increasing to
15 to 20 knots after midnight. Seas 2 to 3 feet. A chance of
showers in the evening.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-041815-
Waters from Freeport to Matagorda Ship Channel TX from 20 to
60 NM-
1224 AM CDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

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

Winds and seas higher in and near thunderstorms.

$$