National Weather Service Marine Forecast FZUS54 KHGX

FZUS54 KHGX 180450
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1050 PM CST Sat Jan 17 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.

GMZ300-181730
1050 PM CST Sat Jan 17 2026

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

Strong northeast winds and high seas continue overnight, then diminish through early Sunday morning. Onshore winds return Sunday night before becoming offshore again following yet another cold front on Monday. This front will stall out offshore, before lifting back northward and returning onshore winds Tuesday into Wednesday. Expect more widespread rainfall on Wednesday and Thursday as another weather system pushes through.

Low water conditions will persist in the bays Sunday, particularly on upper portions, while moderate to strong northeast winds persist. Though winds become onshore Monday, the advisory may even need to be extended through Monday's low tide cycle.

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GMZ335-181730
Galveston Bay
1050 PM CST Sat Jan 17 2026

LOW WATER ADVISORY IN EFFECT UNTIL 6 PM CST SUNDAY

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CST SUNDAY

OVERNIGHT
North winds 15 to 20 knots, diminishing to around 15 knots late. Bay waters choppy, diminishing to slightly choppy late.

SUNDAY
Northwest winds 10 to 15 knots with gusts up to 20 knots, diminishing to around 10 knots in the afternoon. Bay waters slightly choppy, diminishing to smooth in the afternoon.

SUNDAY NIGHT
Southwest winds 5 to 10 knots. Bay waters smooth.

MONDAY
North winds around 5 knots, becoming east in the afternoon. Bay waters smooth.

MONDAY NIGHT
East winds 10 to 15 knots. Bay waters slightly choppy.

TUESDAY
East winds 10 to 15 knots with gusts up to 20 knots. Bay waters slightly choppy.

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

WEDNESDAY
Southeast winds around 10 knots. Bay waters smooth to slightly choppy. Showers likely in the morning, then showers in the afternoon.

WEDNESDAY NIGHT
Southeast winds around 10 knots, becoming east after midnight. Bay waters smooth to slightly choppy, increasing to slightly choppy after midnight. Showers likely, mainly in the evening.

THURSDAY
Northeast winds 10 to 15 knots. Bay waters slightly choppy.

THURSDAY NIGHT
East winds around 10 knots. Bay waters smooth to slightly choppy.

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GMZ330-181730
Matagorda Bay
1050 PM CST Sat Jan 17 2026

LOW WATER ADVISORY IN EFFECT UNTIL 6 PM CST SUNDAY

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CST SUNDAY

OVERNIGHT
North winds 20 to 25 knots with gusts up to 30 knots, diminishing to around 15 knots with gusts up to 20 knots. Bay waters rough, diminishing to slightly choppy.

SUNDAY
North winds 10 to 15 knots, becoming west around 5 knots in the afternoon. Bay waters slightly choppy, diminishing to smooth in the afternoon.

SUNDAY NIGHT
Southwest winds 5 to 10 knots. Bay waters smooth.

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

MONDAY NIGHT
East winds around 15 knots, becoming northeast 15 to 20 knots after midnight. Bay waters slightly choppy, increasing to choppy after midnight.

TUESDAY
East winds 15 to 20 knots. Bay waters choppy.

TUESDAY NIGHT
Southeast winds 10 to 15 knots with gusts up to 20 knots. Bay waters slightly choppy. A chance of showers after midnight.

WEDNESDAY
Southeast winds around 10 knots. Bay waters smooth to slightly choppy. Showers.

WEDNESDAY NIGHT
East winds around 10 knots, becoming northeast after midnight. Bay waters smooth to slightly choppy, increasing to slightly choppy after midnight. A chance of showers.

THURSDAY
Northeast winds 10 to 15 knots. Bay waters slightly choppy.

THURSDAY NIGHT
East winds 5 to 10 knots. Bay waters smooth.

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GMZ350-355-181730
Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM
1050 PM CST Sat Jan 17 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CST SUNDAY

OVERNIGHT
North winds 20 to 25 knots, diminishing to around 20 knots late. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 4 feet at 6 seconds.

SUNDAY
North winds 15 to 20 knots, becoming northwest around 10 knots in the afternoon. Seas 3 to 5 feet, subsiding to 2 to 3 feet in the afternoon. Wave Detail: Northeast 4 feet at 6 seconds, becoming east 3 feet at 6 seconds.

SUNDAY NIGHT
Southwest winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: East 2 feet at 6 seconds and west 1 foot at 2 seconds.

MONDAY
Southeast winds 5 to 10 knots, becoming east in the afternoon. Seas 1 to 2 feet. Wave Detail: East 2 feet at 4 seconds and southwest 1 foot at 3 seconds.

MONDAY NIGHT
East winds around 15 knots, increasing to 15 to 20 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 4 seconds.

TUESDAY
East winds 15 to 20 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at 5 seconds.

TUESDAY NIGHT
East winds 15 to 20 knots, becoming southeast around 15 knots after midnight. Seas 3 to 5 feet. A chance of showers after midnight.

WEDNESDAY
Southeast winds 10 to 15 knots. Seas 3 to 5 feet. Showers likely in the morning, then showers in the afternoon.

WEDNESDAY NIGHT
Southeast winds 10 to 15 knots, becoming northeast after midnight. Seas 4 to 6 feet, occasionally to 8 feet. Showers likely, mainly in the evening.

THURSDAY
Northeast winds around 15 knots. Seas 4 to 6 feet, occasionally to 8 feet.

THURSDAY NIGHT
East winds 10 to 15 knots. Seas 3 to 5 feet.

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GMZ370-375-181730
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
1050 PM CST Sat Jan 17 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CST SUNDAY

OVERNIGHT
North winds 20 to 25 knots with gusts up to 30 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave Detail: Northeast 8 feet at 7 seconds.

SUNDAY
North winds 15 to 20 knots, becoming northwest around 15 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 2 to 4 feet in the afternoon. Wave Detail: Northeast 7 feet at 7 seconds, becoming northeast 4 feet at 7 seconds.

SUNDAY NIGHT
Southwest winds 5 to 10 knots. Seas around 2 feet in the evening, then 1 foot or less. Wave Detail: Northeast 2 feet at 5 seconds, becoming northeast 1 foot at 6 seconds.

MONDAY
Southeast 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.

MONDAY NIGHT
East winds around 15 knots, increasing to 15 to 20 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 4 seconds.

TUESDAY
East winds 15 to 20 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 5 seconds.

TUESDAY NIGHT
Southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers after midnight.

WEDNESDAY
Southeast winds 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. Showers likely in the morning, then showers in the afternoon.

WEDNESDAY NIGHT
Southeast winds 10 to 15 knots, becoming east after midnight. Seas 5 to 7 feet, occasionally to 9 feet. Showers, mainly in the evening.

THURSDAY
Northeast winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of showers in the morning.

THURSDAY NIGHT
East winds 10 to 15 knots. Seas 5 to 6 feet, occasionally to 8 feet.