FZUS54 KHGX 302018 CWFHGX Coastal Waters Forecast for Texas National Weather Service Houston/Galveston TX Issued by National Weather Service Corpus Christi TX 318 PM CDT Wed Apr 30 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. GMZ300-010915- Synopsis for High Island to the Matagorda Ship Channel out 60 nautical miles including Galveston and Matagorda Bays 318 PM CDT Wed Apr 30 2025 .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM including Galveston and Matagorda Bays. A tightening pressure gradient between high pressure to our east and lower pressure to our west will lead to moderate onshore winds, building seas and above normal tides through midweek. Expect periods of caution flag and/or advisory level conditions through midweek. Chances for showers and storms return later Friday into Saturday as a weak front sags toward the coast. $$ GMZ335-010915- Galveston Bay- 318 PM CDT Wed Apr 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... .THIS AFTERNOON...South winds around 20 knots. Bay waters choppy. .TONIGHT...South winds 15 to 20 knots, easing to around 15 knots late. Bay waters choppy, easing to slightly choppy late. A slight chance of showers and thunderstorms after midnight. A chance of showers and thunderstorms late. .THURSDAY...South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers early in the morning. .THURSDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly choppy. .FRIDAY...South winds 10 to 15 knots. Bay waters slightly choppy. Scattered showers in the afternoon. .FRIDAY NIGHT...Southeast winds 10 to 15 knots, easing to around 10 knots after midnight. Bay waters slightly choppy, easing to smooth after midnight. A chance of thunderstorms. Scattered showers in the evening, then numerous showers after midnight. .SATURDAY...Northeast winds around 10 knots. Bay waters smooth to slightly choppy. A chance of thunderstorms. Numerous showers, mainly in the morning. .SATURDAY NIGHT...Northeast winds around 10 knots. Bay waters smooth to slightly choppy. .SUNDAY...Northeast winds around 10 knots. Bay waters smooth to slightly choppy. Scattered showers. .SUNDAY NIGHT...East winds around 10 knots. Bay waters smooth to slightly choppy. Winds and waves higher in and near thunderstorms. $$ GMZ330-010915- Matagorda Bay- 318 PM CDT Wed Apr 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... .THIS AFTERNOON...South winds around 20 knots. Bay waters choppy. .TONIGHT...South winds 15 to 20 knots, easing to around 15 knots late. Bay waters choppy, easing to slightly choppy late. .THURSDAY...South winds 10 to 15 knots. Bay waters slightly choppy. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters slightly choppy. .FRIDAY...Southeast winds 10 to 15 knots. Bay waters slightly choppy. .FRIDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters slightly choppy. Scattered showers in the evening, then scattered showers with a chance of thunderstorms after midnight. .SATURDAY...East winds around 10 knots. Bay waters smooth to slightly choppy. Numerous showers with a chance of thunderstorms. .SATURDAY NIGHT...Northeast winds around 10 knots. Bay waters smooth to slightly choppy. Scattered showers. .SUNDAY...East winds around 10 knots. Bay waters smooth to slightly choppy. Scattered showers. .SUNDAY NIGHT...East winds 10 to 15 knots. Bay waters slightly choppy. Winds and waves higher in and near thunderstorms. $$ GMZ350-355-010915- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- 318 PM CDT Wed Apr 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... .THIS AFTERNOON...South winds around 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. .TONIGHT...South winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A slight chance of showers and thunderstorms late. .THURSDAY...South winds 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet, subsiding to 3 to 4 feet in the afternoon. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. .FRIDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. .FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Scattered showers in the evening, then numerous showers after midnight. .SATURDAY...East winds around 10 knots. Seas 3 to 4 feet. A chance of thunderstorms. Numerous showers, mainly in the morning. .SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Scattered showers in the evening. .SUNDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Scattered showers. .SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. Winds and seas higher in and near thunderstorms. $$ GMZ370-375-010915- 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- 318 PM CDT Wed Apr 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... .THIS AFTERNOON...South winds around 20 knots. Seas 5 to 6 feet, occasionally to 8 feet. .TONIGHT...South winds 15 to 20 knots. Seas 5 to 6 feet, occasionally to 8 feet. .THURSDAY...South winds 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. .FRIDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. .FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas around 4 feet. Scattered showers. .SATURDAY...East winds around 10 knots. Seas 3 to 4 feet. A chance of thunderstorms. Numerous showers, mainly in the morning. .SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Scattered showers. .SUNDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Scattered showers. .SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. Winds and seas higher in and near thunderstorms. $$