980
FZUS54 KHGX 210036
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
736 PM CDT Sun Sep 20 2026

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.

GMZ300-211315-
736 PM CDT Sun Sep 20 2026

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

Southeast winds peaking around 10 to 15 kts are expected through
Monday. These will back to northeasterly Tuesday and veer due
easterly Wednesday/Thursday sustained at 15-20 kts, before
slightly diminishing thereafter. Seas of 1 to 4 ft will persist,
highest on Thursday afternoon. Isolated-to-scattered coastal and
offshore thunderstorms are expected each day, slightly tapering
off towards the end of the week.

$$

GMZ335-211315-
Galveston Bay-
736 PM CDT Sun Sep 20 2026

.REST OF TONIGHT...South winds 5 to 10 knots. Bay waters smooth.
.MONDAY...Northeast winds around 5 knots, becoming southeast in
the afternoon. Bay waters smooth. A slight chance of showers and
thunderstorms in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots, becoming southwest
after midnight. Bay waters smooth.
.TUESDAY...North winds 5 to 10 knots, becoming east in the
afternoon. Bay waters smooth.
.TUESDAY NIGHT...South winds around 5 knots. Bay waters smooth.
.WEDNESDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Bay waters smooth.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots, becoming east
after midnight. Bay waters smooth.
.THURSDAY...Northeast winds 10 to 15 knots, becoming east around
10 knots in the afternoon. Bay waters slightly choppy,
diminishing to smooth in the afternoon.
.THURSDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth.
.FRIDAY...Northeast winds 10 to 15 knots, becoming east around
10 knots in the afternoon. Bay waters slightly choppy,
diminishing to smooth in the afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-211315-
Matagorda Bay-
736 PM CDT Sun Sep 20 2026

.REST OF TONIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth.
.MONDAY...Southeast winds 5 to 10 knots. Bay waters smooth.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.
.TUESDAY...Northeast winds around 10 knots, becoming east 10 to
15 knots in the afternoon. Bay waters smooth, increasing to
slightly choppy in the afternoon.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots, becoming east
around 5 knots after midnight. Bay waters slightly choppy,
diminishing to smooth after midnight.
.WEDNESDAY...Northeast winds around 10 knots, becoming east 10 to
15 knots with gusts up to 20 knots in the afternoon. Bay waters
smooth, increasing to slightly choppy in the afternoon.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots, diminishing to around 10 knots after midnight. Bay
waters slightly choppy, diminishing to smooth after midnight.
.THURSDAY...Northeast winds around 10 knots, becoming east 10 to
15 knots in the afternoon. Bay waters smooth, increasing to
slightly choppy in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots, diminishing to
around 10 knots after midnight. Bay waters slightly choppy,
diminishing to smooth after midnight.
.FRIDAY...East winds 10 to 15 knots. Bay waters slightly choppy.
.FRIDAY NIGHT...East winds 10 to 15 knots, diminishing to around
10 knots after midnight. Bay waters slightly choppy, diminishing
to smooth after midnight.

$$

GMZ350-355-211315-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
736 PM CDT Sun Sep 20 2026

.REST OF TONIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 6 seconds.
.MONDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 1 foot at 5 seconds.
.TUESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet in
the morning, then 1 foot or less. Wave Detail: Southeast 1 foot
at 5 seconds, becoming southeast 1 foot at 4 seconds.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: East 1 foot at 4 seconds.
.WEDNESDAY...Northeast winds around 10 knots, becoming east 10 to
15 knots in the afternoon. Seas around 2 feet. Wave Detail: East
2 feet at 4 seconds.
.WEDNESDAY NIGHT...East winds 10 to 15 knots, diminishing to
around 10 knots after midnight. Seas around 2 feet.
.THURSDAY...Northeast winds 15 to 20 knots, becoming east around
15 knots in the afternoon. Seas 2 to 3 feet.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
.FRIDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.

$$

GMZ370-375-211315-
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-
736 PM CDT Sun Sep 20 2026

.REST OF TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 6 seconds.
.MONDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 5 seconds.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.TUESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 4 seconds.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: East 2 feet at 4 seconds.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
.THURSDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
.FRIDAY...Northeast winds 10 to 15 knots. Seas around 3 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.

$$