Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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490
FZUS54 KHGX 130646
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1246 AM CST Thu Nov 13 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.

GMZ300-131915-
1246 AM CST Thu Nov 13 2025

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

Light to occasionally moderate onshore flow and low seas will
prevail through the remainder of the week. There will be potential
of some patchy fog in the northern parts of the Bays during the
late night to early morning hours beginning on Friday.

$$

GMZ335-131915-
Galveston Bay-
1246 AM CST Thu Nov 13 2025

.REST OF TONIGHT...South winds 5 to 10 knots. Bay waters smooth.
.THURSDAY...Southeast winds around 10 knots, increasing to 10 to
15 knots in the afternoon. Bay waters smooth, increasing to
slightly choppy in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.FRIDAY...Southeast winds around 10 knots. Bay waters smooth to
slightly choppy.
.FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
Patchy fog after midnight.
.SATURDAY...South winds 5 to 10 knots. Bay waters smooth.
.SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
Patchy fog after midnight.
.SUNDAY...South winds 5 to 10 knots. Bay waters smooth. Patchy
fog in the morning.
.SUNDAY NIGHT...South winds around 10 knots. Bay waters smooth to
slightly choppy. Patchy fog after midnight.
.MONDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
Patchy fog in the morning.
.MONDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.

$$

GMZ330-131915-
Matagorda Bay-
1246 AM CST Thu Nov 13 2025

.REST OF TONIGHT...South winds 10 to 15 knots. Bay waters
slightly choppy.
.THURSDAY...South winds around 10 knots, becoming southeast 10 to
15 knots in the afternoon. Bay waters smooth, increasing to
slightly choppy in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.FRIDAY...Southeast winds 10 to 15 knots. Bay waters slightly
choppy.
.FRIDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.SATURDAY...South winds around 10 knots. Bay waters smooth to
slightly choppy.
.SATURDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy. Patchy fog after midnight.
.SUNDAY...South winds 5 to 10 knots. Bay waters smooth. Patchy
fog in the morning.
.SUNDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy. Patchy fog after midnight.
.MONDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
.MONDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.

$$

GMZ350-355-131915-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
1246 AM CST Thu Nov 13 2025

.REST OF TONIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.
Wave Detail: South 3 feet at 6 seconds.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 6 seconds.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at
6 seconds.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 6 seconds.
.SATURDAY...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 6 seconds.
.SATURDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
.SUNDAY...South winds 5 to 10 knots. Seas 2 to 3 feet.
.SUNDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.
.MONDAY...South winds 10 to 15 knots. Seas 3 to 4 feet.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet.

$$

GMZ370-375-131915-
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-
1246 AM CST Thu Nov 13 2025

.REST OF TONIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at
6 seconds.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Wave Detail: South 3 feet at 6 seconds.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 6 seconds.
.FRIDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 4 seconds and southeast 2 feet at
7 seconds.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 4 seconds and southeast 2 feet at
7 seconds.
.SATURDAY...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds.
.SATURDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
.SUNDAY...South winds 5 to 10 knots. Seas 2 to 3 feet.
.SUNDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet.
.MONDAY...South winds 10 to 15 knots. Seas 3 to 4 feet.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet.

$$