


Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
737 FZUS54 KHGX 100523 CWFHGX Coastal Waters Forecast for Texas National Weather Service Houston/Galveston TX 1223 AM CDT Thu Jul 10 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. GMZ300-101815- 1223 AM CDT Thu Jul 10 2025 .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM including Galveston and Matagorda Bays. For the next several days, expect the typical daily pattern of showers and thunderstorms beginning over the Gulf waters in the pre-dawn hours, then gradually shifting towards the immediate coast later in the morning, and farther inland during the afternoon. Light to moderate onshore winds and seas of 2 to 4 feet will prevail for the rest of the work week. Occasionally higher gusts of 15 to 20 knots are possible. Winds and seas may increase towards the end of the week. $$ GMZ335-101815- Galveston Bay- 1223 AM CDT Thu Jul 10 2025 .REST OF TONIGHT...Southwest winds 5 to 10 knots. Bay waters smooth. .THURSDAY...Southwest winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and thunderstorms. .THURSDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly choppy. .FRIDAY...South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and thunderstorms. .FRIDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly choppy. .SATURDAY...South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. .SUNDAY...South winds 5 to 10 knots. Bay waters smooth. A chance of showers and thunderstorms. .SUNDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. .MONDAY...South winds 5 to 10 knots. Bay waters smooth. A chance of showers and thunderstorms. .MONDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ330-101815- Matagorda Bay- 1223 AM CDT Thu Jul 10 2025 .REST OF TONIGHT...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 with gusts up to 20 knots. Bay waters slightly choppy. .FRIDAY...South winds 10 to 15 knots. Bay waters slightly choppy. .FRIDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots. Bay waters slightly choppy. .SATURDAY...South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and thunderstorms. .SATURDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters slightly choppy. .SUNDAY...South winds 5 to 10 knots. Bay waters smooth. A chance of showers and thunderstorms in the morning. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters slightly choppy. .MONDAY...South winds 5 to 10 knots. Bay waters smooth. .MONDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly choppy. Winds and waves higher in and near thunderstorms. $$ GMZ350-355-101815- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- 1223 AM CDT Thu Jul 10 2025 .REST OF TONIGHT...South winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. A slight chance of showers with isolated thunderstorms. .THURSDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. A slight chance of showers with isolated thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .THURSDAY NIGHT...South winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. .FRIDAY...South winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. A chance of showers and thunderstorms in the afternoon. .FRIDAY NIGHT...Southeast winds around 15 knots with gusts up to 25 knots. Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds. A chance of showers after midnight. .SATURDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: South 3 feet at 6 seconds. Showers and thunderstorms likely, mainly in the morning. .SATURDAY NIGHT...South winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. A chance of showers after midnight. .SUNDAY...South winds around 10 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms. .SUNDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. .MONDAY...South winds around 10 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms in the morning. .MONDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$ GMZ370-375-101815- 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- 1223 AM CDT Thu Jul 10 2025 .REST OF TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 6 seconds. A slight chance of showers with isolated thunderstorms. .THURSDAY...Southwest winds 10 to 15 knots, becoming south around 10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. A slight chance of showers. Isolated thunderstorms. .THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. .FRIDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: South 3 feet at 6 seconds. A chance of showers and thunderstorms. .FRIDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. A chance of showers after midnight. .SATURDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. Showers and thunderstorms likely, mainly in the morning. .SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers after midnight. .SUNDAY...South winds around 10 knots. Seas 3 to 4 feet. A chance of showers and thunderstorms in the morning. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas around 3 feet. .MONDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms in the morning. .MONDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$