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FZUS54 KHGX 220029
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
629 PM CST Fri Nov 21 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.

GMZ300-221315-
629 PM CST Fri Nov 21 2025

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

Light onshore flow should continue through tonight with Gulf seas
of 2 to 4 feet. Isolated to widely scattered showers are expected
as a front pushes offshore Saturday morning. Winds on Saturday
will become easterly to northeasterly behind the front. Onshore
flow returns on Sunday and increase in speed. The next weather
system will move into the area late Monday into Tuesday, bringing
another chance of showers and storms. Rain chances linger into
Tuesday as the next front will be slow to move through the area.
This front should be off the coast around Wednesday morning after
being reinforced by a stronger cold front.

$$

GMZ335-221315-
Galveston Bay-
629 PM CST Fri Nov 21 2025

.TONIGHT...South winds 10 to 15 knots this evening, diminishing
overnight and becoming north toward morning. Bay waters slightly
choppy. Patchy fog late this evening and overnight. A chance of
showers with isolated thunderstorms.
.SATURDAY...North winds 5 to 10 knots. Bay waters smooth. A
chance of showers with isolated thunderstorms in the morning.
.SATURDAY NIGHT...North winds 10 knots. Bay waters smooth to
slightly choppy.
.SUNDAY...Northeast winds 10 knots, becoming east in the
afternoon. Bay waters smooth to slightly choppy.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.MONDAY...South winds 15 knots. Bay waters slightly choppy. A
chance of showers.
.MONDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy. A chance of thunderstorms. Showers likely.
.TUESDAY...Southwest winds 5 to 10 knots. Bay waters smooth. A
chance of showers in the morning.
.TUESDAY NIGHT...Northwest winds around 10 knots, becoming north
15 to 20 knots after midnight. Bay waters smooth, increasing to
choppy after midnight.
.WEDNESDAY...North winds 15 to 20 knots, diminishing to around
15 knots in the afternoon. Bay waters choppy, diminishing to
slightly choppy in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots. Bay waters
choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-221315-
Matagorda Bay-
629 PM CST Fri Nov 21 2025

.TONIGHT...South winds 10 to 15 knots this evening, diminishing
overnight and becoming northeast toward morning. Bay waters
slightly choppy. Patchy fog late this evening and overnight. A
chance of showers with isolated thunderstorms.
.SATURDAY...Northeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers with isolated thunderstorms in the morning,
then a slight chance of showers in the afternoon.
.SATURDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters
smooth.
.SUNDAY...East winds 10 to 15 knots. Bay waters slightly choppy.
.SUNDAY NIGHT...Southeast winds 15 to 20 knots. Bay waters
choppy.
.MONDAY...South winds 15 to 20 knots with gusts up to 30 knots.
Bay waters choppy. A chance of showers.
.MONDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy. Showers likely with a chance of thunderstorms.
.TUESDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Bay waters smooth. A chance of showers in the morning.
.TUESDAY NIGHT...Northeast winds around 10 knots, becoming north
15 to 20 knots after midnight. Bay waters smooth, increasing to
choppy after midnight. A chance of showers and thunderstorms
after midnight.
.WEDNESDAY...North winds 15 to 20 knots. Bay waters choppy.
.WEDNESDAY NIGHT...North winds 15 to 20 knots. Bay waters choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-221315-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
629 PM CST Fri Nov 21 2025

.TONIGHT...South winds 10 knots. Seas 2 to 3 feet. Wave Detail:
South 3 feet at 6 seconds. A slight chance of showers with
isolated thunderstorms late.
.SATURDAY...Northeast winds 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds. A slight chance of showers
with isolated thunderstorms in the morning.
.SATURDAY NIGHT...Northeast winds around 10 knots, increasing to
10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Northeast 2 feet at 3 seconds and southeast 2 feet at 6 seconds.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 5 seconds.
.SUNDAY NIGHT...Southeast winds around 15 knots, increasing to
15 to 20 knots after midnight. Seas 2 to 4 feet. Wave Detail:
Southeast 3 feet at 5 seconds.
.MONDAY...South winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: South 4 feet at 5 seconds. A chance of showers in the
afternoon.
.MONDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 5 feet. A chance of showers in the evening,
then showers likely with a chance of thunderstorms after
midnight.
.TUESDAY...Southwest winds 10 to 15 knots, diminishing to around
10 knots in the afternoon. Seas 3 to 4 feet. A chance of showers
in the morning.
.TUESDAY NIGHT...North winds around 10 knots, increasing to 15 to
20 knots after midnight. Seas 2 to 3 feet. A chance of showers
and thunderstorms after midnight.
.WEDNESDAY...North winds 15 to 20 knots. Seas 3 to 4 feet. A
chance of showers and thunderstorms in the morning.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 3 to
5 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-221315-
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-
629 PM CST Fri Nov 21 2025

.TONIGHT...South winds 10 knots. Seas 3 to 4 feet. Wave Detail:
South 3 feet at 6 seconds.
.SATURDAY...South winds around 5 knots, becoming northeast in the
afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at
6 seconds. A slight chance of showers with isolated thunderstorms
in the morning.
.SATURDAY NIGHT...Northeast winds around 10 knots, increasing to
10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 6 seconds and northeast 1 foot at 2 seconds.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 3 seconds and southeast 2 feet at
6 seconds.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to
25 knots. Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at
5 seconds.
.MONDAY...South winds around 15 knots with gusts up to 25 knots.
Seas 3 to 5 feet. Wave Detail: South 4 feet at 5 seconds. A
chance of showers in the afternoon.
.MONDAY NIGHT...South winds around 15 knots with gusts up to
20 knots. Seas 4 to 5 feet. A chance of showers.
.TUESDAY...Southwest winds 5 to 10 knots. Seas 3 to 4 feet. A
chance of showers in the morning.
.TUESDAY NIGHT...Northeast winds around 10 knots, becoming north
15 to 20 knots after midnight. Seas 3 to 4 feet. A chance of
showers and thunderstorms.
.WEDNESDAY...North winds around 20 knots. Seas 3 to 5 feet. A
chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Northeast winds around 20 knots. Seas 4 to
5 feet, building to 5 to 7 feet, occasionally to 9 feet after
midnight.

Winds and seas higher in and near thunderstorms.

$$