566
FZUS54 KHGX 130413
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1113 PM CDT Thu Jun 12 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.

GMZ300-131630-
Synopsis for High Island to the Matagorda Ship Channel out
60 nautical miles including Galveston and Matagorda Bays
1113 PM CDT Thu Jun 12 2025

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

Recent wind data offshore suggest seas will be slow to decrease
today. With winds expected to increase again this evening and
tonight, we opted to issue a Small Craft Advisory due to hazardous
seas for the offshore Gulf waters through Friday morning. Showers
and thunderstorm activity will diminish later this afternoon.
However, we expect an increasing chance of thunderstorms once
again late tonight through Friday morning. The forecast for the
weekend into early next week features light to moderate onshore
flow and a continued daily risk of showers and thunderstorms.
Higher winds and waves can be expected in the vicinity of any
thunderstorm.

$$

GMZ335-131630-
Galveston Bay-
1113 PM CDT Thu Jun 12 2025

...Small Craft Should Exercise Caution...

.REST OF TONIGHT...South winds 15 to 20 knots. Bay waters choppy.
A chance of showers and thunderstorms late this evening, then a
slight chance of showers and thunderstorms. A chance of showers
and thunderstorms late.
.FRIDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
A chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.SATURDAY...South winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms.
.SATURDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms early in the
evening.
.SUNDAY...South winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers and thunderstorms.
.SUNDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.MONDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
A chance of thunderstorms. A chance of showers in the morning,
then showers likely in the afternoon.
.MONDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.TUESDAY...South winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms.
.TUESDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-131630-
Matagorda Bay-
1113 PM CDT Thu Jun 12 2025

...Small Craft Should Exercise Caution...

.REST OF TONIGHT...South winds around 15 knots. Bay waters
slightly choppy to choppy. A chance of showers and thunderstorms
late this evening, then a slight chance of showers and
thunderstorms.
.FRIDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
A slight chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.SATURDAY...South winds 10 to 15 knots. Bay waters slightly
choppy.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.SUNDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
A chance of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.MONDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
A chance of showers and thunderstorms.
.MONDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.TUESDAY...South winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms in the morning.
.TUESDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-131630-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
1113 PM CDT Thu Jun 12 2025

...Small Craft Should Exercise Caution...

.REST OF TONIGHT...South winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: South 5 feet at 6 seconds. A
chance of showers and thunderstorms late this evening, then a
slight chance of showers and thunderstorms.
.FRIDAY...South winds 15 to 20 knots, easing to around 15 knots
late. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
South 5 feet at 6 seconds. A chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 4 feet at 6 seconds.
.SATURDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 4 feet at 6 seconds. A chance of showers and
thunderstorms late in the morning.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: Southeast 4 feet at 7 seconds.
.SUNDAY...South winds 10 to 15 knots. Seas around 3 feet. Wave
Detail: Southeast 3 feet at 7 seconds. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet.
.MONDAY...South winds 10 to 15 knots. Seas around 3 feet. A
chance of showers and thunderstorms.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet.
.TUESDAY...South winds 10 to 15 knots. Seas around 3 feet. A
chance of showers and thunderstorms.
.TUESDAY NIGHT...South winds 15 to 20 knots. Seas 3 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-131630-
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-
1113 PM CDT Thu Jun 12 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT FRIDAY...

.REST OF TONIGHT...South winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: South 5 feet at 6 seconds. A
chance of showers and thunderstorms late this evening and early
morning, then a slight chance of showers and thunderstorms late.
.FRIDAY...South winds 15 to 20 knots. Seas 6 to 7 feet,
occasionally to 9 feet, subsiding to 4 to 6 feet, occasionally to
8 feet in the afternoon. Wave Detail: South 5 feet at 6 seconds.
A slight chance of showers and thunderstorms early in the
morning, then a chance of showers and thunderstorms late in the
morning. A slight chance of showers and thunderstorms in the
afternoon.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 4 feet.
Wave Detail: Southeast 4 feet at 6 seconds.
.SATURDAY...South winds 10 to 15 knots. Seas around 4 feet. Wave
Detail: Southeast 4 feet at 6 seconds.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: Southeast 4 feet at 7 seconds.
.SUNDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 7 seconds. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
3 feet.
.MONDAY...South winds around 10 knots. Seas around 3 feet. A
chance of showers and thunderstorms.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet.
.TUESDAY...South winds 10 to 15 knots. Seas around 3 feet. A
chance of showers and thunderstorms.
.TUESDAY NIGHT...Southeast winds around 15 knots, becoming south
15 to 20 knots after midnight. Seas 3 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$