Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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FZUS54 KHGX 061641
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1141 AM CDT Mon Oct 6 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.

GMZ300-070515-
1141 AM CDT Mon Oct 6 2025

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

Isolated showers will be possible over the coastal waters through
this week, primarily in the pre-dawn and early morning hours.
The best potential for these showers for at least the next night
or two appears to be farther offshore, 20 to 60 nm out.
Light onshore winds and and low seas will continue through
midweek, then a period of moderate northeasterly winds become
more likely for the second half of the week.

$$

GMZ335-070515-
Galveston Bay-
1141 AM CDT Mon Oct 6 2025

.THIS AFTERNOON...East winds around 5 knots, becoming southeast
late. Bay waters smooth. A slight chance of showers early.
.TONIGHT...South winds 5 to 10 knots. Bay waters smooth.
.TUESDAY...Northeast winds around 5 knots, becoming southeast in
the afternoon. Bay waters smooth.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots, becoming
northeast after midnight. Bay waters smooth.
.WEDNESDAY...Northeast winds 10 to 15 knots. Bay waters slightly
choppy.
.WEDNESDAY NIGHT...East winds around 15 knots, becoming northeast
15 to 20 knots after midnight. Bay waters slightly choppy,
increasing to choppy after midnight.
.THURSDAY...Northeast winds 15 to 20 knots, diminishing to around
15 knots in the afternoon. Bay waters choppy, diminishing to
slightly choppy in the afternoon.
.THURSDAY NIGHT...Northeast winds around 15 knots, increasing to
15 to 20 knots after midnight. Bay waters slightly choppy,
increasing to choppy after midnight.
.FRIDAY...Northeast winds 15 to 20 knots, diminishing to around
15 knots in the afternoon. Bay waters choppy, diminishing to
slightly choppy in the afternoon.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Bay waters
slightly choppy.

$$

GMZ330-070515-
Matagorda Bay-
1141 AM CDT Mon Oct 6 2025

.THIS AFTERNOON...East winds 5 to 10 knots, becoming southeast
late. Bay waters smooth. A chance of showers with a slight chance
of thunderstorms early, then a slight chance of showers and
thunderstorms early.
.TONIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.
.TUESDAY...East winds 5 to 10 knots. Bay waters smooth.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots, becoming east
after midnight. Bay waters smooth.
.WEDNESDAY...Northeast winds 10 to 15 knots, becoming east in the
afternoon. Bay waters slightly choppy.
.WEDNESDAY NIGHT...East winds around 15 knots, becoming northeast
15 to 20 knots after midnight. Bay waters slightly choppy,
increasing to choppy after midnight.
.THURSDAY...Northeast winds 15 to 20 knots. Bay waters choppy.
.THURSDAY NIGHT...East winds around 15 knots, becoming northeast
15 to 20 knots after midnight. Bay waters slightly choppy,
increasing to choppy after midnight.
.FRIDAY...Northeast winds 15 to 20 knots, becoming east around
15 knots in the afternoon. Bay waters choppy, diminishing to
slightly choppy in the afternoon.
.FRIDAY NIGHT...East winds 10 to 15 knots. Bay waters slightly
choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-070515-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
1141 AM CDT Mon Oct 6 2025

.THIS AFTERNOON...East winds 5 to 10 knots. Seas 2 to 3 feet.
Wave Detail: East 3 feet at 6 seconds. A chance of showers with a
slight chance of thunderstorms early, then a slight chance of
showers early.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 4 seconds and southeast 2 feet at
7 seconds.
.TUESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 4 seconds.
.TUESDAY NIGHT...East winds 5 to 10 knots, becoming northeast
after midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet
at 4 seconds.
.WEDNESDAY...Northeast winds around 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
Southeast 3 feet at 5 seconds.
.WEDNESDAY NIGHT...East winds around 20 knots, becoming northeast
20 to 25 knots after midnight. Seas 2 to 3 feet. Wave Detail:
East 3 feet at 5 seconds.
.THURSDAY...Northeast winds 20 to 25 knots, diminishing to around
20 knots in the afternoon. Seas 2 to 4 feet.
.THURSDAY NIGHT...Northeast winds 15 to 20 knots. Seas 2 to
4 feet.
.FRIDAY...Northeast winds 15 to 20 knots. Seas 2 to 4 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-070515-
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-
1141 AM CDT Mon Oct 6 2025

.THIS AFTERNOON...South winds around 5 knots. Seas 2 to 3 feet.
Wave Detail: East 2 feet at 6 seconds.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 7 seconds and northeast 1 foot at
4 seconds.
.TUESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 7 seconds.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds.
.WEDNESDAY...Northeast winds 15 to 20 knots. Seas 2 to 3 feet.
Wave Detail: East 3 feet at 6 seconds.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots with gusts up
to 25 knots. Seas around 3 feet. Wave Detail: East 3 feet at
5 seconds. A chance of showers.
.THURSDAY...Northeast winds 20 to 25 knots. Seas 3 to 4 feet. A
chance of showers.
.THURSDAY NIGHT...Northeast winds 15 to 20 knots. Seas 3 to
4 feet.
.FRIDAY...Northeast winds 15 to 20 knots. Seas 3 to 4 feet.
.FRIDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet.

$$