FZUS54 KHGX 091834 CWFHGX Coastal Waters Forecast for Texas National Weather Service Houston/Galveston TX 134 PM CDT Thu Jul 9 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. GMZ300-100715- 134 PM CDT Thu Jul 9 2026 .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM including Galveston and Matagorda Bays. With a fairly long fetch of onshore winds in the 12-17kt range setting up in the coming days and through the weekend, we should see the seas closer to 3-4ft. Rain and storm chances increase Friday into early next week as deeper tropical moisture moves into the area. Mariners should anticipate scattered, to occasionally numerous, showers/tstms during the late night through early afternoon hours on a daily basis. Winds and seas will be higher in and near any stronger storms. $$ GMZ335-100715- Galveston Bay- 134 PM CDT Thu Jul 9 2026 .TODAY...Southwest winds around 10 knots, becoming south early this afternoon, then increasing to 10 to 15 knots late. Bay waters smooth, increasing to slightly choppy late. A slight chance of showers and thunderstorms this afternoon. .TONIGHT...South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and thunderstorms after midnight. .FRIDAY...South winds around 10 knots, increasing to 10 to 15 knots in the afternoon. Bay waters smooth, increasing to slightly choppy in the afternoon. A chance of showers and thunderstorms in the morning. .FRIDAY NIGHT...Southeast winds 10 to 15 knots, becoming south around 10 knots after midnight. Bay waters slightly choppy, diminishing to smooth after midnight. A chance of showers after midnight. .SATURDAY...South winds 5 to 10 knots. Bay waters smooth. A chance of showers and thunderstorms. .SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. .SUNDAY...South winds 5 to 10 knots. Bay waters smooth. A chance of showers and thunderstorms. .SUNDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. A chance of showers and thunderstorms after midnight. .MONDAY...South winds 5 to 10 knots. Bay waters smooth. Thunderstorms likely. Showers likely. .MONDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. A chance of showers and thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ330-100715- Matagorda Bay- 134 PM CDT Thu Jul 9 2026 .TODAY...Southwest winds around 10 knots, becoming south 10 to 15 knots this afternoon. Bay waters slightly choppy. A slight chance of showers late. .TONIGHT...South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and thunderstorms after midnight. .FRIDAY...Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of thunderstorms. A chance of showers. .FRIDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers after midnight. .SATURDAY...Southeast winds around 10 knots. Bay waters smooth to slightly choppy. A chance of showers and thunderstorms in the morning. .SATURDAY NIGHT...Southeast winds around 10 knots. Bay waters smooth to slightly choppy. .SUNDAY...Southeast winds around 10 knots. Bay waters smooth to slightly choppy. A chance of showers and thunderstorms in the morning. .SUNDAY NIGHT...Southeast winds 10 to 15 knots, becoming south around 10 knots after midnight. Bay waters slightly choppy, diminishing to smooth after midnight. .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. A chance of showersand thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ350-355-100715- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- 134 PM CDT Thu Jul 9 2026 .TODAY...Southwest winds around 10 knots, becoming south late this morning, then increasing to around 10 knots early this afternoon, increasing to 10 to 15 knots late. Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. A slight chance of showers and thunderstorms late this morning and afternoon. .TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms after midnight. .FRIDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. A chance of thunderstorms in the morning. A chance of showers. .FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A chance of showers after midnight. .SATURDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. A chance of showers and thunderstorms in the morning. .SATURDAY NIGHT...Southeast winds around 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. .SUNDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms in the morning. .SUNDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet. .MONDAY...South winds 5 to 10 knots. Seas 2 to 4 feet. A chance of thunderstorms. Showers likely, mainly in the morning. .MONDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ370-375-100715- 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- 134 PM CDT Thu Jul 9 2026 .TODAY...South winds 5 to 10 knots, diminishing to around 5 knots late this morning, then increasing to 5 to 10 knots this afternoon. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A slight chance of showers and thunderstorms. .TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds. A slight chance of showers and thunderstorms after midnight. .FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms in the morning. .FRIDAY 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. .SATURDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. A chance of showers and thunderstorms in the morning. .SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: South 3 feet at 6 seconds. .SUNDAY...South winds 10 to 15 knots, becoming southeast around 10 knots in the afternoon. Seas 3 to 4 feet. A chance of showers and thunderstorms. .SUNDAY NIGHT...South winds around 10 knots. Seas 3 to 4 feet. .MONDAY...South winds 5 to 10 knots. Seas 3 to 4 feet. A chance of showers and thunderstorms. .MONDAY NIGHT...South winds around 10 knots. Seas 3 to 4 feet. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$