National Weather Service Marine Forecast FZUS54 KHGX

FZUS54 KHGX 170022
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
722 PM CDT Sun Aug 16 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.

GMZ300-171315
722 PM CDT Sun Aug 16 2026

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

A prevailing south to southeast flow and seas of 2-3 feet will continue for the next several days. High pressure will dominate the weather pattern, leading to persistent hot and dry weather.

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GMZ335-171315
Galveston Bay
722 PM CDT Sun Aug 16 2026

TONIGHT
South winds 5 to 10 knots, becoming southwest late. Bay waters smooth.

MONDAY
West winds around 5 knots, becoming south in the afternoon. Bay waters smooth.

MONDAY NIGHT
South winds 10 to 15 knots, becoming southwest around 10 knots after midnight. Bay waters slightly choppy, diminishing to smooth after midnight.

TUESDAY
West winds around 10 knots, becoming south 10 to 15 knots in the afternoon. Bay waters smooth, increasing to slightly choppy in the afternoon.

TUESDAY NIGHT
Southwest winds 10 to 15 knots. Bay waters slightly choppy.

WEDNESDAY
Southwest winds around 10 knots, becoming south 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
South winds 10 to 15 knots. Bay waters slightly choppy.

THURSDAY
Southwest winds around 10 knots, becoming south 10 to 15 knots in the afternoon. Bay waters smooth, increasing to slightly choppy in the afternoon.

THURSDAY NIGHT
South winds 10 to 15 knots. Bay waters slightly choppy.

FRIDAY
Southwest winds around 10 knots, becoming south 10 to 15 knots in the afternoon. Bay waters smooth, increasing to slightly choppy in the afternoon.

FRIDAY NIGHT
Southwest winds 10 to 15 knots. Bay waters slightly choppy.

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GMZ330-171315
Matagorda Bay
722 PM CDT Sun Aug 16 2026

TONIGHT
Southeast winds 10 to 15 knots, becoming south around 10 knots after midnight. Bay waters smooth.

MONDAY
Southwest winds around 5 knots, becoming southeast 10 to 15 knots in the afternoon. Bay waters smooth, increasing to slightly choppy in the afternoon.

MONDAY NIGHT
South winds 10 to 15 knots, diminishing to around 10 knots after midnight. Bay waters slightly choppy, diminishing to smooth after midnight.

TUESDAY
South winds 5 to 10 knots. Bay waters smooth.

TUESDAY NIGHT
South winds around 10 knots. Bay waters smooth to 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 10 to 15 knots. Bay waters slightly choppy.

THURSDAY NIGHT
South winds 10 to 15 knots. Bay waters slightly choppy.

FRIDAY
South winds around 10 knots, increasing to 10 to 15 knots in the afternoon. Bay waters smooth, increasing to slightly choppy in the afternoon.

FRIDAY NIGHT
South winds 10 to 15 knots. Bay waters slightly choppy.

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GMZ350-355-171315
Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM
722 PM CDT Sun Aug 16 2026

TONIGHT
South winds around 10 knots, becoming southwest late. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds.

MONDAY
Southwest winds around 5 knots, becoming south in the afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet at 6 seconds.

MONDAY NIGHT
South winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds.

TUESDAY
Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds.

TUESDAY NIGHT
South winds 10 to 15 knots. Seas around 2 feet. Wave Detail: South 2 feet at 3 seconds and southeast 1 foot at 9 seconds.

WEDNESDAY
Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds and southeast 1 foot at 9 seconds.

WEDNESDAY NIGHT
South winds 10 to 15 knots. Seas 2 to 3 feet.

THURSDAY
South winds 10 to 15 knots. Seas 2 to 3 feet.

THURSDAY NIGHT
South winds 10 to 15 knots. Seas 2 to 3 feet.

FRIDAY
Southwest winds 10 to 15 knots, becoming south around 10 knots in the afternoon. Seas 2 to 3 feet.

FRIDAY NIGHT
South winds 10 to 15 knots. Seas around 2 feet.

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GMZ370-375-171315
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
722 PM CDT Sun Aug 16 2026

TONIGHT
Southeast winds 5 to 10 knots, becoming south late. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds.

MONDAY
Southwest winds around 5 knots, becoming southeast in the afternoon. Seas around 2 feet. Wave Detail: Southeast 2 feet at 6 seconds.

MONDAY NIGHT
South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds.

TUESDAY
Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 9 seconds and south 1 foot at 4 seconds.

TUESDAY NIGHT
South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds and southeast 1 foot at 9 seconds.

WEDNESDAY
Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds and southeast 1 foot at 9 seconds.

WEDNESDAY NIGHT
South winds 10 to 15 knots. Seas 2 to 3 feet.

THURSDAY
South winds 10 to 15 knots, diminishing to around 10 knots in the afternoon. Seas 2 to 3 feet.

THURSDAY NIGHT
South winds around 10 knots, increasing to 10 to 15 knots after midnight. Seas 2 to 3 feet.

FRIDAY
Southwest winds 10 to 15 knots, diminishing to around 10 knots in the afternoon. Seas 2 to 3 feet.

FRIDAY NIGHT
South winds around 10 knots, becoming southwest 10 to 15 knots after midnight. Seas around 2 feet.