419
FZUS54 KHGX 270520
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1220 AM CDT Sun Jul 27 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.

GMZ300-271815-
1220 AM CDT Sun Jul 27 2025

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

Southerly winds near 10 knots and scattered storms are expected
today, though storms will generally be weaker with less coverage
compared to days prior. High pressure moves in overhead next week
to usher in calmer weather with 1 to 3 ft seas and landbreeze-
seabreeze driven winds. Rain chances return by Thursday as the
next disturbance approaches from the east.

$$

GMZ335-271815-
Galveston Bay-
1220 AM CDT Sun Jul 27 2025

.TODAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.TONIGHT...South winds 5 to 10 knots. Bay waters smooth.
.MONDAY...South winds 5 to 10 knots. Bay waters smooth.
.MONDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Bay waters smooth.
.TUESDAY...Northwest winds 5 to 10 knots, becoming east in the
afternoon. Bay waters smooth.
.TUESDAY NIGHT...South winds 5 to 10 knots, becoming west after
midnight. Bay waters smooth.
.WEDNESDAY...Northwest winds 5 to 10 knots, becoming southwest in
the afternoon. Bay waters smooth.
.WEDNESDAY NIGHT...Southwest winds around 10 knots. Bay waters
smooth to slightly choppy.
.THURSDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms.
.THURSDAY NIGHT...Southwest winds around 10 knots. Bay waters
smooth to slightly choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-271815-
Matagorda Bay-
1220 AM CDT Sun Jul 27 2025

.TODAY...Southeast winds around 10 to 15 knots. Bay waters smooth
to slightly choppy. A slight chance of showers and thunderstorms
early this morning, then a chance of showers and thunderstorms
late this morning and early afternoon. A slight chance of showers
and thunderstorms late.
.TONIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.
.MONDAY...Southeast winds 5 to 10 knots. Bay waters smooth.
.MONDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.TUESDAY...West winds around 5 knots, becoming southeast in the
afternoon. Bay waters smooth.
.TUESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY...West winds around 5 knots, becoming south in the
afternoon. Bay waters smooth.
.WEDNESDAY NIGHT...South winds around 10 knots. Bay waters smooth
to slightly choppy.
.THURSDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Bay waters smooth.
.THURSDAY NIGHT...South winds around 10 knots. Bay waters smooth
to slightly choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-271815-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
1220 AM CDT Sun Jul 27 2025

.TODAY...Southeast winds around 10 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms until late afternoon, then a
slight chance of showers and thunderstorms late.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.MONDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds.
.TUESDAY...Northwest winds 5 to 10 knots, becoming east in the
afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet at
6 seconds.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 7 seconds.
.WEDNESDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Seas around 2 feet.
.WEDNESDAY NIGHT...Southwest winds 10 to 15 knots. Seas around
2 feet.
.THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms in the morning.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-271815-
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-
1220 AM CDT Sun Jul 27 2025

.TODAY...Southeast winds around 10 knots. Seas around 3 feet. A
chance of showers and thunderstorms, mainly this morning.
.TONIGHT...Southeast winds 5 to 10 knots. Seas around 3 feet.
.MONDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds.
.MONDAY NIGHT...South winds around 5 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 7 seconds.
.TUESDAY...Northwest winds 5 to 10 knots, becoming north in the
afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at
7 seconds.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 7 seconds.
.WEDNESDAY...West winds 5 to 10 knots. Seas around 2 feet.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet.
.THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms in the morning.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$