676
FZUS54 KHGX 211744
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1244 PM CDT Mon Sep 21 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.

GMZ300-220615-
1244 PM CDT Mon Sep 21 2026

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

Light to occasionally moderate east to southeast winds today, are
expected to become northeasterly by Tuesday. These winds should
become more consistently moderate to occasionally fresh by
Wednesday and Thursday. There will be a daily risk of isolated
showers and thunderstorms through midweek. Gulf seas of 1 to 3
feet may increase to the 2 to 4 foot range by week`s end.

$$

GMZ335-220615-
Galveston Bay-
1244 PM CDT Mon Sep 21 2026

.THIS AFTERNOON...Southeast winds 5 to 10 knots. Bay waters
smooth. A slight chance of showers and thunderstorms.
.TONIGHT...Southeast winds 5 to 10 knots, becoming east after
midnight. Bay waters smooth.
.TUESDAY...North winds 5 to 10 knots, becoming east in the
afternoon. Bay waters smooth.
.TUESDAY NIGHT...East winds around 5 knots. Bay waters smooth.
.WEDNESDAY...East winds 5 to 10 knots. 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...Northeast 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.

$$

GMZ330-220615-
Matagorda Bay-
1244 PM CDT Mon Sep 21 2026

.THIS AFTERNOON...Southeast winds 5 to 10 knots. Bay waters
smooth. A slight chance of showers and thunderstorms early.
.TONIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.
.TUESDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Bay waters smooth.
.TUESDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth.
.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.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-220615-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
1244 PM CDT Mon Sep 21 2026

.THIS AFTERNOON...East winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds. A slight chance of
showers and thunderstorms early.
.TONIGHT...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 1 foot at 5 seconds.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: East 1 foot at 4 seconds.
.WEDNESDAY...East winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 4 seconds.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to
20 knots, diminishing to around 10 knots after midnight. Seas
2 to 3 feet. Wave Detail: East 2 feet at 4 seconds.
.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 2 to 3 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-220615-
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-
1244 PM CDT Mon Sep 21 2026

.THIS AFTERNOON...East winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds. A slight chance of
showers and thunderstorms early.
.TONIGHT...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 1 foot at 5 seconds.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 4 seconds.
.WEDNESDAY...East 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.
Wave Detail: East 2 feet at 4 seconds.
.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 2 to 3 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$