Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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FZUS54 KHGX 291741
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1241 PM CDT Sun Jun 29 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.

GMZ300-300615-
Synopsis for High Island to the Matagorda Ship Channel out
60 nautical miles including Galveston and Matagorda Bays
1241 PM CDT Sun Jun 29 2025

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

Shower and thunderstorm chances increase today as some deeper
tropical moisture moves into the area. Tropical Depression Two should
move inland over the southern coast of Mexico later today, will
not pose an issue to the upper Texas coast other than a very slight
increase in seas. Beyond Monday, mostly light to moderate onshore
winds and 2 to 4 foot seas are expected, along with a daily risk
of isolated to scattered showers and thunderstorms.

$$

GMZ335-300615-
Galveston Bay-
1241 PM CDT Sun Jun 29 2025

...Small Craft Should Exercise Caution...

.THIS AFTERNOON...South winds 10 to 20 knots with gusts to 25
knots possible. Bay waters slightly choppy. Showers and
thunderstorms likely early, then a chance of showers and
thunderstorms late. Hazy.
.TONIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms early in the
evening. Hazy.
.MONDAY...South winds around 10 knots, rising to 10 to 15 knots
late. Bay waters smooth, rising to slightly choppy late. Hazy.
.MONDAY NIGHT...South winds 10 to 15 knots, becoming southwest
around 10 knots after midnight. Bay waters smooth. Hazy.
.TUESDAY...Southwest winds around 5 knots, backing to south in
the afternoon. Bay waters smooth. Hazy.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters
smooth.
.WEDNESDAY...Southwest winds 5 to 10 knots, backing to south in
the afternoon. Bay waters smooth.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters
smooth.
.THURSDAY...Southwest winds 5 to 10 knots, backing to south in
the afternoon. Bay waters smooth.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-300615-
Matagorda Bay-
1241 PM CDT Sun Jun 29 2025

...Small Craft Should Exercise Caution...

.THIS AFTERNOON...South winds 10 to 15 knots with gusts to 20
knots possible. Bay waters slightly choppy. Showers and
thunderstorms likely early, then a chance of showers and
thunderstorms late. Hazy.
.TONIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy. A slight chance of showers and thunderstorms early in the
evening. Hazy.
.MONDAY...South winds around 10 knots, becoming southeast 10 to
15 knots late. Bay waters smooth, rising to slightly choppy late.
Hazy. A chance of showers in the late morning and afternoon. A
chance of thunderstorms in the afternoon.
.MONDAY NIGHT...Southeast winds 10 to 15 knots, becoming south
around 10 knots after midnight. Bay waters smooth. Hazy.
.TUESDAY...Southeast winds 5 to 10 knots. Bay waters smooth.
Hazy.
.TUESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY...South winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.THURSDAY...South winds 5 to 10 knots. Bay waters smooth.
.THURSDAY NIGHT...South winds 10 to 15 knots, easing to around
10 knots after midnight. Bay waters slightly choppy, easing to
smooth after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-300615-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
1241 PM CDT Sun Jun 29 2025

...Small Craft Should Exercise Caution...

.THIS AFTERNOON...South winds 10 to 20 knots with gusts to 25
knots possible. Seas 3 to 4 feet.
Wave Detail: Southeast 3 feet at 6 seconds. Showers and
thunderstorms likely early, then a chance of showers and
thunderstorms late. Hazy.
.TONIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 7 seconds. A slight chance of showers
and thunderstorms early in the evening. Hazy.
.MONDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 4 feet at 7 seconds. Hazy.
.MONDAY NIGHT...South winds 10 to 15 knots, easing to around
10 knots late. Seas 3 to 4 feet. Wave Detail: South 3 feet at
7 seconds. Hazy.
.TUESDAY...South winds 5 to 10 knots. Seas around 3 feet. Wave
Detail: South 3 feet at 7 seconds. Hazy.
.TUESDAY NIGHT...South winds around 10 knots. Seas around 3 feet.
Wave Detail: Southeast 3 feet at 7 seconds.
.WEDNESDAY...South winds 5 to 10 knots. Seas around 3 feet in the
morning, then around 2 feet or less.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet
or less, then around 3 feet after midnight.
.THURSDAY...South winds 5 to 10 knots. Seas around 3 feet in the
morning, then around 2 feet or less.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet
or less, then around 3 feet after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-300615-
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-
1241 PM CDT Sun Jun 29 2025

...Small Craft Should Exercise Caution...

.THIS AFTERNOON...South winds 10 to 20 knots with gusts to 25
knots possible. Seas 4 to 5 feet, occasionally 5 to 7 feet at
times from swells. Wave Detail: Southeast 4 feet at 7 seconds.
Showers and thunderstorms likely early, then a chance of showers
and thunderstorms late. Hazy.
.TONIGHT...South winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: Southeast 4 feet at 7 seconds. Hazy.
.MONDAY...South winds around 10 knots. Seas 3 to 5 feet. Wave
Detail: South 4 feet at 7 seconds. Hazy. A chance of showers in
the late morning and afternoon. A chance of thunderstorms early
in the afternoon.
.MONDAY NIGHT...South winds around 10 knots. Seas 3 to 4 feet.
Wave Detail: South 3 feet at 7 seconds. Hazy.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: South 3 feet at 7 seconds. Hazy.
.TUESDAY NIGHT...South winds 5 to 10 knots. Seas around 3 feet.
Wave Detail: Southeast 3 feet at 7 seconds.
.WEDNESDAY...South winds 5 to 10 knots. Seas around 3 feet.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 3 feet.
.THURSDAY...South winds 5 to 10 knots. Seas around 3 feet.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 3 feet.

Winds and seas higher in and near thunderstorms.

$$