Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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610
FZUS54 KHGX 140532
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1232 AM 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.

GMZ300-141830-
1232 AM 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
8-15kt range and 2-4 foot seas. Isolated, mainly overnight and
morning showers or thunderstorms are possible in the Gulf and near
the coast, with slightly better chances of storms in the north
parts of the bays in the early-mid afternoon hours. Chances
decline Tuesday through Thursday as some drier air moves into the
area. NHC will be monitoring the northeast and north central Gulf
for any tropical development later this week. Chances are
currently around 30%, but it is a good reminder for mariners to
keep up with the latest forecasts.

$$

GMZ335-141830-
Galveston Bay-
1232 AM CDT Mon Jul 14 2025

.REST OF TONIGHT...South winds near 10 knots. Bay waters smooth
to slightly choppy.
.MONDAY...South winds around 10 knots. Bay waters smooth to
slightly choppy. A slight chance of showers and thunderstorms in
the morning, then a chance of showers and thunderstorms in the
afternoon.
.MONDAY NIGHT...South winds around 10 knots. Bay waters smooth to
slightly choppy.
.TUESDAY...South winds around 10 knots. Bay waters smooth to
slightly choppy.
.TUESDAY NIGHT...South winds around 10 knots. Bay waters smooth
to slightly choppy.
.WEDNESDAY...South winds around 10 knots. Bay waters smooth to
slightly choppy.
.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. A chance of showers and thunderstorms after
midnight.
.FRIDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Bay waters smooth, increasing to smooth to slightly
choppy in the afternoon. A chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds around 10 knots. Bay waters smooth to
slightly choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-141830-
Matagorda Bay-
1232 AM CDT Mon Jul 14 2025

.REST OF TONIGHT...South winds 10 to 15 knots. Bay waters
slightly choppy.
.MONDAY...South winds around 10 knots. Bay waters smooth to
slightly choppy. A slight 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.
.TUESDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.WEDNESDAY...South winds 10 to 15 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.
.FRIDAY NIGHT...South winds around 10 knots. Bay waters smooth to
slightly choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-141830-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
1232 AM CDT Mon Jul 14 2025

.REST OF TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 5 seconds.
.MONDAY...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds. A slight chance of showers and
thunderstorms.
.MONDAY NIGHT...South winds 10 to 15 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. Seas 2 to 3 feet.
Wave Detail: South 3 feet at 6 seconds.
.WEDNESDAY...South winds around 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.
.THURSDAY...South winds 5 to 10 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...South winds around 10 knots. Seas around
2 feet. A chance of showers and thunderstorms after midnight.
.FRIDAY...South winds around 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms.
.FRIDAY NIGHT...South winds around 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-141830-
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-
1232 AM CDT Mon Jul 14 2025

.REST OF TONIGHT...South winds 10 to 15 knots. Seas around
3 feet. Wave Detail: Southeast 3 feet at 6 seconds. A chance of
showers and thunderstorms late.
.MONDAY...South winds around 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 5 seconds. A slight chance of showers and
thunderstorms in the morning.
.MONDAY NIGHT...South winds 10 to 15 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. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 7 seconds.
.WEDNESDAY...South winds around 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.
.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 and thunderstorms after midnight.
.FRIDAY...South winds around 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.

$$