Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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114
FZUS54 KHGX 160606
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
106 AM CDT Mon Jun 16 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.

GMZ300-161915-
Synopsis for High Island to the Matagorda Ship Channel out
60 nautical miles including Galveston and Matagorda Bays
106 AM CDT Mon Jun 16 2025

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

A daily risk of showers and thunderstorms continues through the
week. Light to moderate onshore flow continues through Tuesday,
with onshore flow increasing somewhat after Wednesday. However,
higher winds and seas will be possible in the vicinity of any
thunderstorm. Seas will also increase after mid-week into the end
of the week in response to a surface coastal trough along the Deep
South TX coast.

$$

GMZ335-161915-
Galveston Bay-
106 AM CDT Mon Jun 16 2025

.REST OF TONIGHT...South winds around 10 knots. Bay waters smooth
to slightly choppy. A slight chance of showers and thunderstorms.
.MONDAY...South winds around 10 knots. Bay waters smooth to
slightly choppy. A 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. A chance of showers and thunderstorms.
.TUESDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms early in the
evening.
.WEDNESDAY...South winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Bay waters
slightly choppy.
.THURSDAY...South winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms in the morning, then showers
and thunderstorms likely in the afternoon.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.FRIDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-161915-
Matagorda Bay-
106 AM CDT Mon Jun 16 2025

.REST OF TONIGHT...South winds 10 to 15 knots. Bay waters
slightly choppy. A slight chance of showers and thunderstorms.
.MONDAY...South winds around 10 knots. Bay waters smooth to
slightly choppy. A 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 15 to 20 knots. Bay waters choppy.
.WEDNESDAY...South winds 15 to 20 knots. Bay waters choppy.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.THURSDAY...Southeast winds around 10 knots. Bay waters smooth to
slightly choppy. Showers and thunderstorms likely.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. A chance of showers and thunderstorms after midnight.
.FRIDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A chance of showers and thunderstorms after
midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-161915-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
106 AM CDT Mon Jun 16 2025

.REST OF TONIGHT...South winds 10 to 15 knots. Seas around
3 feet. Wave Detail: Southeast 3 feet at 6 seconds. A slight
chance of showers and thunderstorms.
.MONDAY...South winds 10 to 15 knots. Seas around 3 feet. Wave
Detail: South 3 feet at 6 seconds. A chance of showers and
thunderstorms.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet.
Wave Detail: South 3 feet at 6 seconds.
.TUESDAY...South winds 10 to 15 knots. Seas around 3 feet. Wave
Detail: South 3 feet at 6 seconds.
.TUESDAY NIGHT...South winds 15 to 20 knots. Seas 3 to 4 feet.
Wave Detail: South 4 feet at 5 seconds.
.WEDNESDAY...South winds 15 to 20 knots, easing to around
15 knots in the afternoon. Seas 3 to 4 feet. Wave Detail:
Southeast 4 feet at 6 seconds.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
Showers and thunderstorms likely, mainly in the morning.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to
4 feet. A chance of showers and thunderstorms after midnight.
.FRIDAY...Southeast winds around 10 knots, rising to 10 to
15 knots in the afternoon. Seas 3 to 4 feet. A chance of showers
and thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
A chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-161915-
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-
106 AM CDT Mon Jun 16 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.
.MONDAY...South winds around 10 knots. Seas around 3 feet. Wave
Detail: South 3 feet at 6 seconds. A chance of showers and
thunderstorms until late afternoon.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet.
Wave Detail: Southeast 3 feet at 6 seconds.
.TUESDAY...South winds 10 to 15 knots. Seas around 3 feet. Wave
Detail: South 3 feet at 6 seconds. A chance of showers and
thunderstorms until late afternoon.
.TUESDAY NIGHT...South winds around 15 knots, rising to 15 to
20 knots after midnight. Seas 3 to 4 feet. Wave Detail: South
4 feet at 6 seconds.
.WEDNESDAY...South winds 15 to 20 knots, easing to around
15 knots in the afternoon. Seas 3 to 4 feet. Wave Detail: South
4 feet at 6 seconds.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. A chance of showers and thunderstorms after midnight.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
Showers and thunderstorms likely.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet. A chance of showers and thunderstorms after midnight.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers and thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
A chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$