Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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740
FZUS54 KHGX 110606
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1206 AM CST Thu Dec 11 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.

GMZ300-111915-
1206 AM CST Thu Dec 11 2025

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

Light offshore winds continue early today, but should shift onshore
this afternoon with moisture and rain chances rising into Friday.
Will have to keep an eye out for sea fog across the nearshore waters
and bays beginning on Friday morning at the absolute earliest.
Friday night into Saturday morning is the current time frame where
sea fog conditions are most optimal, though water temperatures
warming just a tad could inhibit sea fog development. If water
temperatures are very slow to recover, the worst of the sea fog may
extend through Saturday night into Sunday ahead of an approaching
cold front. Small Craft Advisories are likely on Sunday behind the
front.

$$

GMZ335-111915-
Galveston Bay-
1206 AM CST Thu Dec 11 2025

.TODAY...Northeast winds 5 to 10 knots, becoming southeast this
afternoon. Bay waters smooth.
.TONIGHT...South winds around 5 knots. Bay waters smooth. Patchy
fog after midnight.
.FRIDAY...West winds around 5 knots, becoming south in the
afternoon. Bay waters smooth. Patchy fog in the morning.
.FRIDAY NIGHT...Southeast winds around 5 knots. Bay waters
smooth. Patchy fog in the evening. Areas of fog after midnight.
.SATURDAY...Southeast winds 5 to 10 knots. Bay waters smooth.
Areas of fog in the morning. A chance of showers.
.SATURDAY NIGHT...Southeast winds around 5 knots, becoming
northeast after midnight. Bay waters smooth. Areas of fog. A
chance of showers after midnight.
.SUNDAY...Northeast winds 15 to 20 knots. Bay waters choppy.
Patchy fog in the morning.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots. Bay waters
choppy.
.MONDAY...Northeast winds 10 to 15 knots, becoming east around
10 knots in the afternoon. Bay waters slightly choppy,
diminishing to smooth in the afternoon.
.MONDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth.

$$

GMZ330-111915-
Matagorda Bay-
1206 AM CST Thu Dec 11 2025

.TODAY...Northeast winds 10 to 15 knots, becoming east around
10 knots late this morning and early afternoon, then becoming
southeast late. Bay waters slightly choppy, diminishing to smooth
late this morning and afternoon.
.TONIGHT...Southeast winds around 5 knots, becoming south after
midnight. Bay waters smooth. Patchy fog after midnight.
.FRIDAY...Southwest winds around 5 knots, becoming south in the
afternoon. Bay waters smooth. Patchy fog in the morning.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.
Patchy fog.
.SATURDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers in the morning. Patchy fog in the morning.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming
northeast after midnight. Bay waters smooth. Patchy fog. A chance
of showers after midnight.
.SUNDAY...Northeast winds 15 to 20 knots. Bay waters choppy.
Patchy fog in the morning.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots. Bay waters
choppy.
.MONDAY...Northeast winds 10 to 15 knots. Bay waters slightly
choppy.
.MONDAY NIGHT...East winds around 10 knots. Bay waters smooth to
slightly choppy.

$$

GMZ350-355-111915-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
1206 AM CST Thu Dec 11 2025

.TODAY...Northeast winds 10 to 15 knots with gusts up to
20 knots, becoming east around 10 knots this afternoon. Seas 2 to
3 feet. Wave Detail: East 3 feet at 5 seconds.
.TONIGHT...Southeast winds 5 to 10 knots, becoming south after
midnight. Seas around 2 feet. Wave Detail: East 2 feet at
5 seconds and south 1 foot at 3 seconds. Patchy fog after
midnight.
.FRIDAY...Southwest winds 5 to 10 knots, becoming southeast in
the afternoon. Seas around 2 feet. Wave Detail: South 1 foot at
4 seconds and east 1 foot at 5 seconds. Patchy fog in the
morning.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Patchy fog. A
chance of showers after midnight.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds. Patchy fog in the
morning. A chance of showers.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming
northeast after midnight. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 5 seconds. Patchy fog. A chance of showers
and thunderstorms after midnight.
.SUNDAY...Northeast winds around 20 knots, increasing to 20 to
25 knots in the afternoon. Seas 3 to 5 feet. A chance of showers
in the morning. Patchy fog in the morning.
.SUNDAY NIGHT...Northeast winds 20 to 25 knots. Seas 5 to 7 feet,
occasionally to 9 feet.
.MONDAY...Northeast winds 15 to 20 knots, becoming east around
15 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-111915-
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-
1206 AM CST Thu Dec 11 2025

.TODAY...Northeast winds 10 to 15 knots with gusts up to
20 knots, becoming east around 10 knots this afternoon. Seas 2 to
3 feet. Wave Detail: Northeast 3 feet at 5 seconds and southwest
1 foot at 4 seconds.
.TONIGHT...Southeast winds around 10 knots, becoming south 10 to
15 knots after midnight. Seas 2 to 3 feet. Wave Detail: South
2 feet at 4 seconds and east 2 feet at 5 seconds.
.FRIDAY...Southwest winds 10 to 15 knots, becoming south around
10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South
2 feet at 4 seconds and east 1 foot at 5 seconds. A chance of
showers in the afternoon.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A chance of
showers and thunderstorms after midnight.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds. A chance of
thunderstorms in the morning. A chance of showers.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming east
after midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet
at 5 seconds. A chance of showers and thunderstorms after
midnight.
.SUNDAY...Northeast winds around 20 knots, increasing to 20 to
25 knots in the afternoon. Seas 2 to 4 feet, building to 5 to
7 feet, occasionally to 9 feet in the afternoon. A chance of
showers in the morning.
.SUNDAY NIGHT...Northeast winds 20 to 25 knots. Seas 6 to 8 feet,
occasionally to 10 feet.
.MONDAY...Northeast winds 15 to 20 knots, diminishing to around
15 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet.

Winds and seas higher in and near thunderstorms.

$$