Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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700
FZUS54 KHGX 090523
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1123 PM CST Sat Nov 8 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.

GMZ300-091815-
1123 PM CST Sat Nov 8 2025

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

A cold front makings its way across Texas is expected to pass off
the coast between 2am-6am Sunday. Expect strong north winds and
building seas to arrive shortly after the front passes. 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.

$$

GMZ335-091815-
Galveston Bay-
1123 PM CST Sat Nov 8 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CST SUNDAY THROUGH
LATE SUNDAY NIGHT...
...LOW WATER ADVISORY IN EFFECT FROM 8 AM SUNDAY TO MIDNIGHT CST
MONDAY NIGHT...

.REST OF TONIGHT...West winds around 10 knots, becoming north
15 to 25 knots late. Bay waters smooth, increasing to choppy
late. Patchy fog.
.SUNDAY...North winds 20 to 25 knots with gusts up to 35 knots.
Bay waters rough.
.SUNDAY NIGHT...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.

$$

GMZ330-091815-
Matagorda Bay-
1123 PM CST Sat Nov 8 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CST SUNDAY THROUGH
LATE SUNDAY NIGHT...

.REST OF TONIGHT...South winds around 5 knots, becoming north 15
to 25 knots late. Bay waters smooth, increasing to choppy late.
Patchy fog.
.SUNDAY...North winds around 30 knots. Bay waters very rough.
.SUNDAY NIGHT...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.

$$

GMZ350-355-091815-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
1123 PM CST Sat Nov 8 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM TO 8 AM CST SUNDAY...
...GALE WARNING IN EFFECT FROM 8 AM CST SUNDAY THROUGH LATE
SUNDAY NIGHT...

.REST OF TONIGHT...Southwest winds around 10 knots, becoming west
around 15 knots, then becoming northwest 15 to 25 knots late.
Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds and
northwest 1 foot at 2 seconds. Patchy fog. A slight chance of
showers and thunderstorms late.
.SUNDAY...North winds around 35 knots. Seas 3 to 5 feet, building
to 5 to 7 feet, occasionally to 9 feet in the afternoon. Wave
Detail: East 5 feet at 6 seconds and north 2 feet at 3 seconds,
becoming northeast 5 feet at 5 seconds.
.SUNDAY NIGHT...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.
.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.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-091815-
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-
1123 PM CST Sat Nov 8 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM TO 8 AM CST SUNDAY...
...GALE WARNING IN EFFECT FROM 8 AM CST SUNDAY THROUGH LATE
SUNDAY NIGHT...

.REST OF TONIGHT...Southwest winds around 10 knots, becoming
northwest 15 to 20 knots with gusts up to 25 knots late. Seas
2 to 3 feet. Wave Detail: Northwest 2 feet at 3 seconds and south
2 feet at 6 seconds. A slight chance of showers and thunderstorms
late.
.SUNDAY...North winds around 35 knots. Seas 5 to 7 feet,
occasionally to 9 feet, building to 7 to 10 feet, occasionally to
13 feet in the 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 in the morning.
.SUNDAY NIGHT...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.
.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.

$$