


Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
773 FZUS54 KHGX 160041 CWFHGX Coastal Waters Forecast for Texas National Weather Service Houston/Galveston TX 741 PM CDT Tue Jul 15 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. GMZ300-161315- 741 PM CDT Tue Jul 15 2025 .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM including Galveston and Matagorda Bays. Onshore winds in the 8-15 kt range and 2-3 foot seas are in the forecast through the end of the week. Rain chances will decrease as we head into the midweek time period as drier air filters into the area. Later in the week, rain chances increase again as a disturbance approaches from the east. NHC continues to monitor the northeast and north central Gulf for some potential tropical development in the coming days. Mariners are advised to check the forecast for the updates due to uncertainties regarding the tropical disturbance. $$ GMZ335-161315- Galveston Bay- 741 PM CDT Tue Jul 15 2025 .REST OF TONIGHT...South winds 10 to 15 knots with gusts up to 20 knots, becoming southwest around 10 knots. Bay waters smooth. .WEDNESDAY...South winds 5 to 10 knots. Bay waters smooth. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters smooth. .THURSDAY...West winds around 5 knots, becoming south in the afternoon. Bay waters smooth. A chance of showers and thunderstorms in the afternoon. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters smooth. A chance of showers after midnight. .FRIDAY...West winds 5 to 10 knots, becoming south in the afternoon. Bay waters smooth. Showers and thunderstorms likely. .FRIDAY NIGHT...South winds around 10 knots. Bay waters smooth to slightly choppy. .SATURDAY...South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and thunderstorms. .SATURDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly choppy. .SUNDAY...South winds 10 to 15 knots. Bay waters slightly choppy. .SUNDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly choppy. Winds and waves higher in and near thunderstorms. $$ GMZ330-161315- Matagorda Bay- 741 PM CDT Tue Jul 15 2025 .REST OF TONIGHT...South winds 10 to 15 knots with gusts up to 20 knots. Bay waters slightly choppy. .WEDNESDAY...South winds 10 to 15 knots. Bay waters slightly choppy. .WEDNESDAY NIGHT...South winds 10 to 15 knots, diminishing to around 10 knots after midnight. Bay waters slightly choppy, diminishing to smooth after midnight. .THURSDAY...South winds 5 to 10 knots. Bay waters smooth. .THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. .FRIDAY...South winds 5 to 10 knots. Bay waters smooth. A chance of showers and thunderstorms in the morning. .FRIDAY NIGHT...South winds around 10 knots. Bay waters smooth to slightly choppy. .SATURDAY...South winds 10 to 15 knots. Bay waters slightly choppy. .SATURDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly choppy. .SUNDAY...South winds 10 to 15 knots. Bay waters slightly choppy. .SUNDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly choppy. Winds and waves higher in and near thunderstorms. $$ GMZ350-355-161315- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- 741 PM CDT Tue Jul 15 2025 .REST OF TONIGHT...South winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. .WEDNESDAY...South winds 10 to 15 knots, diminishing to around 10 knots in the afternoon. Seas 2 to 3 feet. .WEDNESDAY NIGHT...South winds 10 to 15 knots, diminishing to around 10 knots after midnight. Seas 2 to 3 feet. .THURSDAY...Southwest winds 5 to 10 knots, becoming southeast in the afternoon. Seas around 2 feet. Wave Detail: Southwest 1 foot at 4 seconds. .THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 4 seconds. A chance of showers after midnight. .FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 4 seconds. A chance of showers and thunderstorms. .FRIDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. .SATURDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. .SATURDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. .SUNDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. .SUNDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$ GMZ370-375-161315- 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- 741 PM CDT Tue Jul 15 2025 .REST OF TONIGHT...South winds around 10 knots. Seas 2 to 3 feet. .WEDNESDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. .THURSDAY...Southwest winds 5 to 10 knots, becoming southeast in the afternoon. Seas around 2 feet. Wave Detail: Southwest 1 foot at 4 seconds. .THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 1 foot at 4 seconds. A chance of showers after midnight. .FRIDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 4 seconds. A chance of showers and thunderstorms. .FRIDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. .SATURDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. .SATURDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet. .SUNDAY...South winds around 10 knots. Seas 2 to 3 feet. .SUNDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$