Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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FZUS54 KHGX 010620
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1220 AM CST Mon Dec 1 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.

GMZ300-011930-
1220 AM CST Mon Dec 1 2025

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

Gusty north to northeast winds continue tonight. Observation sites
in the bays and Gulf waters are reporting gusts of 20-25 kts.
Small Craft Advisories are in effect through this morning.
Another upper level disturbance will move through later tonight
into tomorrow bringing another round of rain and embedded
thunderstorms. Additional Small Craft Advisories are possible
Monday night into Tuesday morning as moderate to strong
northeasterly winds develop behind this exiting system.

$$

GMZ335-011930-
Galveston Bay-
1220 AM CST Mon Dec 1 2025

.REST OF TONIGHT...Northeast winds 15 to 20 knots. Bay waters
choppy. A chance of showers with a slight chance of thunderstorms
late.
.MONDAY...Northeast winds 10 to 15 knots. Bay waters slightly
choppy. Showers. A chance of thunderstorms, mainly in the
morning. Patchy fog in the afternoon.
.MONDAY NIGHT...North winds 15 to 20 knots with gusts up to
25 knots. Bay waters choppy. A chance of showers in the evening.
Patchy fog in the evening.
.TUESDAY...North winds 15 to 20 knots with gusts up to 25 knots,
diminishing to around 15 knots in the afternoon. Bay waters
choppy, diminishing to slightly choppy in the afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY...Southeast winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Bay waters
smooth to slightly choppy. A chance of thunderstorms. Showers.
.THURSDAY...Northeast winds 10 to 15 knots. Bay waters slightly
choppy. Showers with a chance of thunderstorms.
.THURSDAY NIGHT...North winds 10 to 15 knots. Bay waters slightly
choppy. Showers with a chance of thunderstorms in the evening,
then showers likely after midnight.
.FRIDAY...North winds 10 to 15 knots, diminishing to around
10 knots in the afternoon. Bay waters slightly choppy,
diminishing to smooth in the afternoon. Showers likely, mainly in
the morning.
.FRIDAY NIGHT...North winds 5 to 10 knots. Bay waters smooth. A
chance of showers in the evening.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-011930-
Matagorda Bay-
1220 AM CST Mon Dec 1 2025

.REST OF TONIGHT...North winds 15 to 20 knots. Bay waters choppy.
A slight chance of showers, then a chance of showers and
thunderstorms late.
.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. Showers with a chance of
thunderstorms in the morning, then showers in the afternoon.
Patchy fog in the afternoon.
.MONDAY NIGHT...North winds around 20 knots, increasing to 20 to
25 knots after midnight. Bay waters choppy, increasing to rough
after midnight. A chance of showers in the evening.
.TUESDAY...North winds 15 to 20 knots with gusts up to 25 knots,
diminishing to around 15 knots in the afternoon. Bay waters
choppy, diminishing to slightly choppy in the afternoon.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots, becoming
southeast after midnight. Bay waters smooth.
.WEDNESDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers in the afternoon.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Bay waters
smooth to slightly choppy. Showers with a chance of
thunderstorms.
.THURSDAY...North winds 10 to 15 knots. Bay waters slightly
choppy. A chance of thunderstorms. Showers.
.THURSDAY NIGHT...North winds 10 to 15 knots. Bay waters slightly
choppy. A chance of thunderstorms in the evening. Showers likely.
.FRIDAY...North winds 10 to 15 knots. Bay waters slightly choppy.
Showers likely, mainly in the morning.
.FRIDAY NIGHT...North winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-011930-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
1220 AM CST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...

.REST OF TONIGHT...Northeast winds 20 to 25 knots. Seas 4 to
5 feet. Wave Detail: South 1 foot at 6 seconds. A slight chance
of showers, then showers likely with a chance of thunderstorms
late.
.MONDAY...Northeast winds 15 to 20 knots with gusts up to
25 knots. Seas 3 to 5 feet. Wave Detail: South 1 foot at
6 seconds. Showers. A chance of thunderstorms, mainly in the
morning. Patchy fog in the afternoon.
.MONDAY NIGHT...North winds around 20 knots, increasing to 20 to
25 knots after midnight. Seas 3 to 4 feet. Wave Detail: Northeast
3 feet at 4 seconds and south 1 foot at 5 seconds. A chance of
showers in the evening. Patchy fog in the evening.
.TUESDAY...North winds 20 to 25 knots, diminishing to around
15 knots in the afternoon. Seas 2 to 4 feet. Wave Detail:
Northeast 4 feet at 4 seconds.
.TUESDAY NIGHT...Northeast winds around 10 knots, becoming
southeast after midnight. Seas 2 to 3 feet.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: East 2 feet at 4 seconds. A chance of showers in the
afternoon.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Showers with a chance of thunderstorms.
.THURSDAY...North winds 10 to 15 knots, becoming northeast in the
afternoon. Seas 3 to 4 feet. Showers with a chance of
thunderstorms.
.THURSDAY NIGHT...North winds around 15 knots. Seas 3 to 4 feet.
Showers with a chance of thunderstorms in the evening, then
showers likely after midnight.
.FRIDAY...North winds 10 to 15 knots. Seas 2 to 3 feet. Showers
likely.
.FRIDAY NIGHT...North winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-011930-
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-
1220 AM CST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...

.REST OF TONIGHT...Northeast winds 20 to 25 knots. Seas 5 to
6 feet, occasionally to 8 feet. Wave Detail: South 1 foot at
6 seconds. A slight chance of thunderstorms. A chance of showers,
then showers likely late.
.MONDAY...Northeast winds 15 to 20 knots with gusts up to
25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
South 1 foot at 5 seconds. Showers. A chance of thunderstorms,
mainly in the morning.
.MONDAY NIGHT...North winds around 20 knots, increasing to 20 to
25 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: North 6 feet at 5 seconds and south 1 foot
at 5 seconds. Patchy fog in the evening. A chance of showers.
.TUESDAY...North winds 20 to 25 knots, diminishing to around
20 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: North 6 feet at 5 seconds.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots, becoming
southeast after midnight. Seas 2 to 4 feet. Wave Detail:
Northeast 3 feet at 5 seconds.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: East 2 feet at 4 seconds. A chance of showers in the
afternoon.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet.
Showers with a chance of thunderstorms.
.THURSDAY...South winds 10 to 15 knots, becoming east in the
afternoon. Seas 3 to 4 feet. Showers with a chance of
thunderstorms.
.THURSDAY NIGHT...Northeast winds around 15 knots, becoming north
after midnight. Seas around 4 feet. Showers with a chance of
thunderstorms.
.FRIDAY...North winds 10 to 15 knots. Seas 3 to 4 feet. Showers.
.FRIDAY NIGHT...North winds around 10 knots. Seas 2 to 3 feet. A
chance of showers.

Winds and seas higher in and near thunderstorms.

$$