097
FZUS54 KHGX 301015
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
515 AM CDT Thu Jul 30 2026

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.

GMZ300-302315-
515 AM CDT Thu Jul 30 2026

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

Light to moderate southwesterly winds and 2-3 foot Gulf seas are
expected through Friday. By Saturday, an approaching frontal
boundary is expected to tighten the low-level gradient, increasing
southwesterly flow to 15-20 knots, possibly higher, by Saturday
afternoon and night. Seas may increase to 4 feet as a response to
the increasing winds. Caution Flags will likely be warranted.
Scattered showers and thunderstorms associated with the front are
possible Saturday night into Sunday.

$$

GMZ335-302315-
Galveston Bay-
515 AM CDT Thu Jul 30 2026

.TODAY...Southwest winds around 10 knots, becoming south early
this afternoon, then increasing to 10 to 15 knots late. Bay
waters smooth, increasing to slightly choppy late.
.TONIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.FRIDAY...Southwest winds around 10 knots, becoming south 10 to
15 knots with gusts up to 20 knots in the afternoon. Bay waters
smooth, increasing to slightly choppy in the afternoon.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots. Bay waters
slightly choppy.
.SATURDAY...Southwest winds around 15 knots, increasing to 15 to
20 knots in the afternoon. Bay waters slightly choppy, increasing
to choppy in the afternoon.
.SATURDAY NIGHT...Southwest winds 15 to 20 knots with gusts up to
25 knots. Bay waters choppy. A chance of showers and
thunderstorms after midnight.
.SUNDAY...West winds 10 to 15 knots, becoming southwest around
10 knots in the afternoon. Bay waters slightly choppy,
diminishing to smooth in the afternoon. A chance of showers and
thunderstorms in the morning.
.SUNDAY NIGHT...Southwest winds 10 to 15 knots. Bay waters
slightly choppy.
.MONDAY...West winds around 10 knots, becoming south 10 to
15 knots in the afternoon. Bay waters smooth, increasing to
slightly choppy in the afternoon.
.MONDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-302315-
Matagorda Bay-
515 AM CDT Thu Jul 30 2026

.TODAY...South winds 10 to 15 knots. Bay waters slightly choppy.
.TONIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.FRIDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
.FRIDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.SATURDAY...Southwest winds 10 to 15 knots. Bay waters slightly
choppy.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots with gusts up to
20 knots. Bay waters slightly choppy.
.SUNDAY...West winds 10 to 15 knots, becoming south around
10 knots in the afternoon. Bay waters slightly choppy,
diminishing to smooth in the afternoon.
.SUNDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.MONDAY...Southwest winds around 10 knots, becoming south 10 to
15 knots in the afternoon. Bay waters smooth, increasing to
slightly choppy in the afternoon.
.MONDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.

$$

GMZ350-355-302315-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
515 AM CDT Thu Jul 30 2026

.TODAY...Southwest winds 10 to 15 knots, becoming south around
10 knots late this morning and afternoon. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds.
.TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds.
.FRIDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 4 seconds.
.SATURDAY...Southwest winds around 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South
3 feet at 5 seconds.
.SATURDAY NIGHT...Southwest winds 15 to 20 knots. Seas 2 to
4 feet. Wave Detail: South 4 feet at 5 seconds. A chance of
showers and thunderstorms after midnight.
.SUNDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms in the morning.
.SUNDAY NIGHT...Southwest winds around 15 knots. Seas 2 to
3 feet.
.MONDAY...Southwest winds 10 to 15 knots, becoming south in the
afternoon. Seas 2 to 3 feet.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet in
the evening.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-302315-
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-
515 AM CDT Thu Jul 30 2026

.TODAY...Southwest winds 10 to 15 knots, becoming south around
10 knots late this morning and afternoon. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds.
.TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 5 seconds.
.FRIDAY...Southwest winds 10 to 15 knots, becoming south around
10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South
2 feet at 5 seconds.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 5 seconds.
.SATURDAY...Southwest winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at
5 seconds.
.SATURDAY NIGHT...Southwest winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 3 feet. Wave Detail: Southwest 3 feet at
5 seconds. A chance of showers and thunderstorms after midnight.
.SUNDAY...West winds 10 to 15 knots. Seas 2 to 3 feet. A chance
of showers and thunderstorms in the morning.
.SUNDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
.MONDAY...Southwest winds 10 to 15 knots, diminishing to around
10 knots in the afternoon. Seas 2 to 3 feet.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet in
the evening.

Winds and seas higher in and near thunderstorms.

$$