Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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019
FZUS54 KHGX 141821
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
121 PM CDT Mon Jul 14 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.

GMZ300-150715-
121 PM CDT Mon Jul 14 2025

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

A typical summer pattern is anticipated with onshore winds in the
8-15 kt range and 2-3 foot seas. Isolated to scattered showers and
storms will continue mainly across Galveston Bay through late this
afternoon. Rain chances are lower Tuesday through Thursday. NHC
will be monitoring the northeast and north central Gulf for any
tropical development later this week. Chances are currently around
30%. Mariners are advised to keep up with the latest forecasts.

$$

GMZ335-150715-
Galveston Bay-
121 PM CDT Mon Jul 14 2025

.REST OF TODAY...South winds 10 to 15 knots. Higher gusts near
storms. Bay waters slightly choppy. A chance of showers and
thunderstorms.
.TONIGHT...South winds around 10 knots. Bay waters smooth to
slightly choppy.
.TUESDAY...South winds around 10 knots, increasing to 10 to
15 knots with gusts up to 20 knots in the afternoon. Bay waters
smooth, increasing to slightly choppy in the afternoon.
.TUESDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.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 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms after midnight.
.FRIDAY...South winds 5 to 10 knots. Bay waters smooth. A chance
of showers and thunderstorms.
.FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-150715-
Matagorda Bay-
121 PM CDT Mon Jul 14 2025

.REST OF TODAY...South winds 10 to 15 knots with gusts up to
20 knots. Bay waters slightly choppy. A slight chance of showers
and thunderstorms early this afternoon.
.TONIGHT...South winds 10 to 15 knots with gusts up to 20 knots.
Bay waters slightly choppy.
.TUESDAY...South winds 10 to 15 knots. Bay waters slightly
choppy.
.TUESDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Bay waters slightly choppy.
.WEDNESDAY...South winds 10 to 15 knots with gusts up to
20 knots. Bay waters slightly choppy.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Bay waters
slightly choppy.
.THURSDAY...South winds 5 to 10 knots. Bay waters smooth.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.FRIDAY...South winds 5 to 10 knots. Bay waters smooth. A chance
of showers and thunderstorms in the morning.
.FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-150715-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
121 PM CDT Mon Jul 14 2025

.REST OF TODAY...South winds around 10 knots with higher gusts.
Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. A slight
chance of showers and thunderstorms.
.TONIGHT...South winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: South 3 feet at 6 seconds.
.TUESDAY...South winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: South 3 feet at 6 seconds.
.TUESDAY NIGHT...South winds 10 to 15 knots with gusts up to
25 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at
6 seconds.
.WEDNESDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 6 seconds.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 6 seconds.
.THURSDAY...South winds 5 to 10 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...South winds around 10 knots. Seas around
2 feet.
.FRIDAY...South winds 5 to 10 knots. Seas around 2 feet. A chance
of showers and thunderstorms.
.FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-150715-
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-
121 PM CDT Mon Jul 14 2025

.REST OF TODAY...South winds around 10 knots with higher gusts.
Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds.
.TONIGHT...South winds 10 to 15 knots with gusts up to 20 knots.
Seas 2 to 3 feet. Wave Detail: South 3 feet at 6 seconds.
.TUESDAY...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 6 seconds.
.TUESDAY NIGHT...South winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at
6 seconds.
.WEDNESDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 6 seconds.
.WEDNESDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 6 seconds.
.THURSDAY...South winds 5 to 10 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. A
chance of showers after midnight.
.FRIDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A chance
of showers and thunderstorms.
.FRIDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$