307
FZUS54 KHGX 091223
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
623 AM CST Sun Nov 9 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.

GMZ300-100115-
623 AM CST Sun Nov 9 2025

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

Expect strengthening northerly winds and building seas in the wake
of this morning`s cold front. There is only a slight chance of
showers and thunderstorms over the Gulf waters along the front.
Small Craft Advisory conditions are expected on all area waters
for much of this morning, becoming gales on the Gulf towards mid-
day and through the night. The strong north winds will also
generate low water conditions late Sunday and Monday on both
Galveston Bay and Matagorda Bay, with more severe low water
conditions anticipated on Galveston Bay, where a low water
advisory has been issued. These conditions are expected to be an
issue at low tide on Sunday, but also in upper portions of the bay
and the Houston Ship Channel through Monday`s low tide cycle as
well.

$$

GMZ335-100115-
Galveston Bay-
623 AM CST Sun Nov 9 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...
...LOW WATER ADVISORY IN EFFECT UNTIL MIDNIGHT CST MONDAY NIGHT...

.TODAY...North winds 20 to 25 knots with gusts up to 35 knots.
Bay waters rough.
.TONIGHT...North winds 20 to 25 knots with gusts up to 30 knots.
Bay waters rough.
.MONDAY...North winds 15 to 20 knots, diminishing to around
15 knots in the afternoon. Bay waters choppy, diminishing to
slightly choppy in the afternoon.
.MONDAY NIGHT...North winds 10 to 15 knots, becoming east around
10 knots after midnight. Bay waters slightly choppy, diminishing
to smooth after midnight.
.TUESDAY...Southeast winds around 10 knots, becoming south 10 to
15 knots with gusts up to 20 knots in the afternoon. Bay waters
smooth, increasing to slightly choppy in the afternoon.
.TUESDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Bay waters slightly choppy.
.WEDNESDAY...South winds 10 to 15 knots. Bay waters slightly
choppy.
.WEDNESDAY NIGHT...South winds around 10 knots. Bay waters smooth
to slightly choppy.
.THURSDAY...South winds around 10 knots. Bay waters smooth to
slightly choppy.
.THURSDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.

$$

GMZ330-100115-
Matagorda Bay-
623 AM CST Sun Nov 9 2025

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

.TODAY...North winds around 30 knots. Bay waters very rough.
.TONIGHT...North winds around 30 knots, diminishing to 20 to
25 knots after midnight. Bay waters very rough, diminishing to
rough after midnight.
.MONDAY...North winds 20 to 25 knots with gusts up to 30 knots,
diminishing to around 20 knots in the afternoon. Bay waters
rough, diminishing to choppy in the afternoon.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Bay waters
slightly choppy.
.TUESDAY...Southeast winds around 10 knots, becoming south 10 to
15 knots with gusts up to 20 knots in the afternoon. Bay waters
smooth, increasing to slightly choppy in the afternoon.
.TUESDAY NIGHT...South winds 15 to 20 knots with gusts up to
25 knots. Bay waters choppy.
.WEDNESDAY...South winds 10 to 15 knots. Bay waters slightly
choppy.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Bay waters
slightly choppy.
.THURSDAY...South winds 10 to 15 knots. Bay waters slightly
choppy.
.THURSDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.

$$

GMZ350-355-100115-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
623 AM CST Sun Nov 9 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM CST THIS MORNING...
...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...

.TODAY...North winds around 30 knots, diminishing to 20 to
25 knots late. Seas 3 to 5 feet, building to 5 to 7 feet,
occasionally to 9 feet this afternoon. Wave Detail: East 5 feet
at 6 seconds and north 2 feet at 3 seconds, becoming northeast
5 feet at 5 seconds.
.TONIGHT...North winds around 30 knots with gusts up to 40 knots.
Seas 5 to 7 feet, occasionally to 9 feet, building to 6 to
9 feet, occasionally to 11 feet after midnight. Wave Detail:
Northeast 6 feet at 5 seconds, becoming northeast 6 feet at
6 seconds.
.MONDAY...North winds 20 to 25 knots, diminishing to around
20 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet. Wave Detail: Northeast 6 feet at 6 seconds.
.MONDAY NIGHT...North winds 10 to 15 knots with gusts up to
20 knots, becoming northeast after midnight. Seas 2 to 4 feet.
Wave Detail: Northeast 3 feet at 4 seconds.
.TUESDAY...Southeast winds around 10 knots, becoming south 10 to
15 knots with gusts up to 20 knots in the afternoon. Seas 2 to
4 feet. Wave Detail: East 2 feet at 6 seconds.
.TUESDAY NIGHT...South winds 15 to 20 knots with gusts up to
25 knots. Seas 3 to 5 feet, building to 5 to 6 feet, occasionally
to 8 feet after midnight. Wave Detail: South 5 feet at 5 seconds
and northeast 1 foot at 5 seconds, becoming south 5 feet at
6 seconds and northeast 1 foot at 5 seconds.
.WEDNESDAY...South winds 15 to 20 knots, diminishing to around
15 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 5 feet.
.THURSDAY...South winds 10 to 15 knots. Seas 2 to 4 feet.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 5 feet.

$$

GMZ370-375-100115-
Waters from Freeport to Matagorda Ship Channel TX from 20 to
60 NM-Waters from High Island to Freeport TX from 20 to 60 NM-
623 AM CST Sun Nov 9 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM CST THIS MORNING...
...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...

.TODAY...North winds around 30 knots. Seas 5 to 7 feet,
occasionally to 9 feet, building to 7 to 10 feet, occasionally to
13 feet this afternoon. Wave Detail: East 6 feet at 6 seconds and
northwest 4 feet at 4 seconds, becoming north 8 feet at 6 seconds
and southwest 1 foot at 5 seconds. A chance of showers with a
slight chance of thunderstorms early this morning.
.TONIGHT...North winds around 30 knots with gusts up to 40 knots.
Seas 9 to 12 feet, occasionally to 15 feet. Wave Detail: North
7 feet at 5 seconds.
.MONDAY...North winds around 30 knots, diminishing to around
20 knots in the afternoon. Seas 8 to 11 feet, occasionally to
14 feet, subsiding to 6 to 9 feet, occasionally to 11 feet in the
afternoon. Wave Detail: Northeast 9 feet at 7 seconds, becoming
northeast 7 feet at 7 seconds.
.MONDAY NIGHT...North winds 15 to 20 knots, becoming east around
15 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet, subsiding to 3 to 4 feet after midnight. Wave Detail:
Northeast 5 feet at 6 seconds, becoming northeast 4 feet at
6 seconds.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Wave
Detail: Northeast 3 feet at 6 seconds.
.TUESDAY NIGHT...South winds 15 to 20 knots with gusts up to
25 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
South 5 feet at 5 seconds and northeast 2 feet at 5 seconds.
.WEDNESDAY...South winds 15 to 20 knots, diminishing to around
15 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 4 to 5 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to
5 feet.

Winds and seas higher in and near thunderstorms.

$$