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 26
468
FZUS54 KHGX 032149
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
449 PM CDT Fri Oct 3 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.

GMZ300-041015-
449 PM CDT Fri Oct 3 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.

$$

GMZ335-041015-
Galveston Bay-
449 PM CDT Fri Oct 3 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT THROUGH SATURDAY
MORNING...

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

Winds and waves higher in and near thunderstorms.

$$

GMZ330-041015-
Matagorda Bay-
449 PM CDT Fri Oct 3 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT THROUGH SATURDAY
MORNING...

.TONIGHT...East winds 15 to 20 knots, diminishing to around
15 knots late this evening and overnight. Bay waters choppy,
diminishing to slightly choppy late this evening and overnight.
.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 thunderstorms. A
slight chance of showers in the morning, then a chance of showers
in the afternoon.
.SATURDAY NIGHT...East winds 15 to 20 knots, diminishing to
around 15 knots after midnight. Bay waters choppy, diminishing to
slightly choppy after midnight. A chance of showers.
.SUNDAY...East winds 10 to 15 knots. Bay waters slightly choppy.
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 10 to 15 knots. Bay waters slightly choppy.
A chance of showers.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.TUESDAY...East winds 10 to 15 knots. Bay waters slightly choppy.
A chance of showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Bay waters slightly
choppy.
.WEDNESDAY...Northeast winds 10 to 15 knots. Bay waters slightly
choppy.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Bay waters slightly
choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ355-041015-
Coastal waters from High Island to Freeport TX out 20 NM-
449 PM CDT Fri Oct 3 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT UNTIL 5 PM CDT
THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING...

.TONIGHT...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 3 to 5 feet. Wave Detail: East 5 feet at 6 seconds. A slight
chance of showers. A slight chance of thunderstorms this evening.
A slight chance of thunderstorms late.
.SATURDAY...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 3 to 5 feet. Wave Detail: East 5 feet at 6 seconds. A chance
of showers with a slight chance of thunderstorms.
.SATURDAY NIGHT...East 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 6 seconds. A chance of showers.
.SUNDAY...East winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: East 5 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...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 6 seconds. A chance of showers.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet.
.TUESDAY...East winds 10 to 15 knots. Seas around 2 feet.
.TUESDAY NIGHT...East winds around 10 knots, becoming northeast
after midnight. Seas around 2 feet in the evening, then 1 foot or
less.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas around 2 feet.
.WEDNESDAY NIGHT...East winds around 15 knots, becoming northeast
15 to 20 knots after midnight. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ350-041015-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-
449 PM CDT Fri Oct 3 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT UNTIL 5 PM CDT
THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING...

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

Winds and seas higher in and near thunderstorms.

$$

GMZ375-041015-
Waters from High Island to Freeport TX from 20 to 60 NM-
449 PM CDT Fri Oct 3 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT UNTIL 5 PM CDT
THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING...

.TONIGHT...East winds around 20 knots with gusts up to 25 knots.
Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East
6 feet at 6 seconds. A chance of showers with a slight chance of
thunderstorms.
.SATURDAY...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 thunderstorms. A chance of
showers in the morning, then showers likely in the afternoon.
.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.
Showers likely, mainly in the evening.
.SUNDAY...East winds 15 to 20 knots with gusts up to 25 knots.
Seas 5 to 6 feet, occasionally to 8 feet, subsiding to 4 feet in
the afternoon. Wave Detail: East 6 feet at 7 seconds, becoming
east 4 feet at 7 seconds. A chance of showers.
.SUNDAY NIGHT...East winds 15 to 20 knots, diminishing to around
15 knots after midnight. Seas 3 to 4 feet. Wave Detail: East
4 feet at 7 seconds. A chance of showers.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 6 seconds. A chance of showers.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet. A
chance of showers in the evening.
.TUESDAY...East winds 10 to 15 knots. Seas around 2 feet. A
chance of showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet.
.WEDNESDAY...Northeast winds 15 to 20 knots. Seas around 2 feet.
A chance of showers.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 2 to
3 feet. A chance of showers.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-041015-
Waters from Freeport to Matagorda Ship Channel TX from 20 to
60 NM-
449 PM CDT Fri Oct 3 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT UNTIL 5 PM CDT
THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING...

.TONIGHT...East 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 early this evening.
A slight chance of thunderstorms late.
.SATURDAY...Northeast 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 and thunderstorms.
.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. Showers likely, mainly in the evening.
.SUNDAY...East winds around 15 knots with gusts up to 20 knots.
Seas 4 to 5 feet. Wave Detail: East 5 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.
.MONDAY...East winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: East 3 feet at 6 seconds. A chance of showers.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet. A
chance of showers.
.TUESDAY...East winds 10 to 15 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 after midnight.
.WEDNESDAY...Northeast winds around 15 knots. Seas around 2 feet.
A chance of showers.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 2 to
3 feet. A chance of showers.

Winds and seas higher in and near thunderstorms.

$$