FZUS54 KHGX 260300
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1000 PM CDT Tue Mar 25 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.

GMZ300-261515
Synopsis for High Island to the Matagorda Ship Channel out 60 nautical miles including Galveston and Matagorda Bays 1000 PM CDT Tue Mar 25 2025

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

Patchy fog lingering near the beaches and off the coast will gradually spread back northward into the bays overnight. Mariners should anticipate reduced visibilities as the near wears on. The fog should retreat back into the Gulf toward mid morning. Southerly winds will increase Wednesday afternoon and continue doing so through Thursday night in advance of an approaching storm system from the west. With a long fetch setting up, seas will build and Small Craft Advisories will be likely by late Thursday. Mariners should be aware of the potential for periods of heavy rain and storms Thursday and Friday as well. A gradual improvement is anticipated this weekend. The next front is forecast to push through early Monday morning.

---

GMZ335-261515
Galveston Bay
1000 PM CDT Tue Mar 25 2025

REST OF TONIGHT
Southeast winds 5 to 10 knots. Bay waters smooth slightly choppy. Areas of fog developing overnight.

WEDNESDAY
Southeast winds 10 knots. Bay waters smooth to slightly choppy. Areas of fog early in the morning.

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

THURSDAY
Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon.

THURSDAY NIGHT
Southeast winds 15 to 20 knots. Bay waters choppy. Showers and thunderstorms.

FRIDAY
Southeast winds 15 knots. Bay waters slightly choppy to choppy. Showers and thunderstorms. Some thunderstorms may produce heavy rainfall.

FRIDAY NIGHT
South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and thunderstorms.

SATURDAY
South winds around 10 knots. Bay waters smooth to slightly choppy.

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

SUNDAY
South winds around 10 knots. Bay waters smooth to slightly choppy.

SUNDAY NIGHT
South winds around 10 knots, veering to west after midnight. Bay waters smooth to slightly choppy, easing to smooth after midnight.

Winds and waves higher in and near thunderstorms.

---

GMZ330-261515
Matagorda Bay
1000 PM CDT Tue Mar 25 2025

REST OF TONIGHT
Southeast winds 10 to 15 knots, easing to around 10 knots late. Bay waters slightly choppy, easing to smooth late. Areas of fog developing overnight.

WEDNESDAY
Southeast winds around 10 knots, becoming east 10 to 15 knots late. Bay waters smooth, rising to slightly choppy late. Areas of fog early in the morning.

WEDNESDAY NIGHT
East winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers.

THURSDAY
East winds 10 to 15 knots. Bay waters slightly choppy. Showers and thunderstorms likely in the morning, then showers and thunderstorms in the afternoon.

THURSDAY NIGHT
East winds 15 to 20 knots. Bay waters choppy. Showers and thunderstorms.

FRIDAY
Southeast winds 10 to 15 knots. Bay waters slightly choppy. Showers and thunderstorms. Some thunderstorms may produce heavy rainfall.

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

SATURDAY
South winds around 10 knots. Bay waters smooth to slightly choppy.

SATURDAY NIGHT
Southeast winds around 10 knots. Bay waters smooth to slightly choppy.

SUNDAY
South winds around 10 knots. Bay waters smooth to slightly choppy.

SUNDAY NIGHT
South winds around 10 knots, backing to east after midnight. Bay waters smooth to slightly choppy, easing to smooth after midnight.

Winds and waves higher in and near thunderstorms.

---

GMZ350-355-261515
Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM
1000 PM CDT Tue Mar 25 2025

REST OF TONIGHT
Southeast winds 10 to 15 knots, easing to around 10 knots late. Seas around 3 feet. Wave Detail: Southeast 3 feet at 6 seconds and southeast 2 feet at 3 seconds. Areas of fog.

WEDNESDAY
Southeast winds around 10 knots, becoming east 10 to 15 knots late. Seas around 2 feet or less, then around 3 feet in the afternoon. Wave Detail: Southeast 2 feet at 6 seconds, becoming southeast 3 feet at 6 seconds. Patchy fog in the morning.

WEDNESDAY NIGHT
Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. A chance of showers after midnight.

THURSDAY
Southeast winds 10 to 15 knots. Seas 3 to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds. A chance of showers and thunderstorms in the morning, then showers and thunderstorms in the afternoon.

THURSDAY NIGHT
East winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 8 feet. Wave Detail: Southeast 6 feet at 7 seconds. Showers and thunderstorms.

FRIDAY
Southeast winds 10 to 15 knots. Seas 5 to 7 feet, occasionally to 8 feet. Wave Detail: Southeast 6 feet at 8 seconds. Showers and thunderstorms. Some thunderstorms may produce heavy rainfall.

FRIDAY NIGHT
South winds 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers and thunderstorms.

SATURDAY
South winds 10 to 15 knots. Seas 4 to 5 feet.

SATURDAY NIGHT
Southeast winds 10 to 15 knots. Seas 3 to 4 feet.

SUNDAY
South winds 10 to 15 knots. Seas 3 to 4 feet.

SUNDAY NIGHT
South winds around 10 knots, backing to southeast after midnight. Seas 3 to 4 feet.

Winds and seas higher in and near thunderstorms.

---

GMZ370-375-261515
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
1000 PM CDT Tue Mar 25 2025

REST OF TONIGHT
Southeast winds 10 to 15 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 6 seconds and southeast 2 feet at 3 seconds. Patchy fog.

WEDNESDAY
Southeast winds around 10 knots, backing to east late. Seas around 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.

WEDNESDAY NIGHT
East winds 10 to 15 knots. Seas 3 to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds. A chance of showers.

THURSDAY
Southeast winds 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 5 feet at 7 seconds. A chance of showers. A chance of thunderstorms.

THURSDAY NIGHT
Southeast winds 20 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail: Southeast 7 feet at 7 seconds. Showers and thunderstorms.

FRIDAY
Southeast winds 15 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave Detail: Southeast 6 feet at 8 seconds. Showers and thunderstorms. Some thunderstorms may produce heavy rainfall.

FRIDAY NIGHT
South winds 10 to 15 knots. Seas 6 to 7 feet, occasionally to 9 feet. A chance of showers and thunderstorms.

SATURDAY
South winds 10 to 15 knots. Seas 5 to 7 feet, occasionally to 9 feet.

SATURDAY NIGHT
Southeast winds 10 to 15 knots. Seas 4 to 5 feet.

SUNDAY
South winds 10 to 15 knots. Seas 4 to 5 feet.

SUNDAY NIGHT
South winds 5 to 10 knots. Seas 3 to 5 feet.

Winds and seas higher in and near thunderstorms.