301
FZUS54 KHGX 190504
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1104 PM CST Tue Nov 18 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.

GMZ300-191730-
1104 PM CST Tue Nov 18 2025

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

Areas of inland fog may bleed into portions of Galveston Bay and
the northern Houston Ship Channel overnight causing reduced
visibility. Fog should burn off toward mid morning. Areas of fog
look to be possible again Wednesday night, though not as prevalent
as tonight. Otherwise, light to moderate onshore flow should
continue through Thursday night with Gulf seas of 2 to 4 feet. A
very weak frontal boundary will sag close to the coast late Friday
night or Saturday morning then wash out. Onshore winds quickly
resume late in the day Saturday then increase Sunday.

$$

GMZ335-191730-
Galveston Bay-
1104 PM CST Tue Nov 18 2025

.REST OF TONIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. Areas of fog late.
.WEDNESDAY...Southeast winds around 10 knots. Bay waters smooth
to slightly choppy. Some early morning fog. A slight chance of
showers.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Bay waters
smooth to slightly choppy.
.THURSDAY...Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A chance of showers.
.FRIDAY...South winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters smooth.
A chance of showers after midnight.
.SATURDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Bay waters smooth. A chance of showers.
.SATURDAY NIGHT...Southeast winds around 5 knots. Bay waters
smooth.
.SUNDAY...East winds 5 to 10 knots. Bay waters smooth. A chance
of showers.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.

$$

GMZ330-191730-
Matagorda Bay-
1104 PM CST Tue Nov 18 2025

.REST OF TONIGHT...Southeast winds around 10 knots. Bay waters
smooth to slightly choppy.
.WEDNESDAY...Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A slight chance of showers.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.THURSDAY...Southeast winds 10 to 15 knots with gusts up to
20 knots. Bay waters slightly choppy. A chance of showers in the
afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Bay waters slightly choppy. A chance of showers after
midnight.
.FRIDAY...South winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers.
.FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. A
chance of showers.
.SATURDAY...East winds 5 to 10 knots. Bay waters smooth. A chance
of showers.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. A chance of showers after midnight.
.SUNDAY...Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A chance of showers after midnight.

$$

GMZ350-355-191730-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
1104 PM CST Tue Nov 18 2025

.REST OF TONIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 5 seconds. A slight chance of
showers.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Southeast 3 feet at 5 seconds.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Wave Detail: Southeast 3 feet at 5 seconds. A chance of showers
in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at
5 seconds. A chance of showers.
.FRIDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 3 feet at 5 seconds. A chance of showers.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. A
chance of showers.
.SATURDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. A chance
of showers.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet.
.SUNDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.

$$

GMZ370-375-191730-
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-
1104 PM CST Tue Nov 18 2025

.REST OF TONIGHT...Southeast winds 10 to 15 knots. Seas around
3 feet. Wave Detail: South 3 feet at 5 seconds.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas around 3 feet.
Wave Detail: South 3 feet at 5 seconds. A slight chance of
showers.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots with gusts up
to 20 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at
5 seconds.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 3 feet at 5 seconds. A chance of showers
in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at
6 seconds. A chance of showers in the evening.
.FRIDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 3 feet at 6 seconds. A chance of showers.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas 3 to 4 feet. A
chance of showers after midnight.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 3 feet. A
chance of showers.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet.
.SUNDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet. A
chance of showers.
.SUNDAY NIGHT...Southeast winds around 15 knots, increasing to
15 to 20 knots after midnight. Seas 3 to 5 feet.

$$