


Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
142 FZUS54 KHGX 020433 CWFHGX Coastal Waters Forecast for Texas National Weather Service Houston/Galveston TX 1133 PM CDT Fri Aug 1 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. GMZ300-021730- 1133 PM CDT Fri Aug 1 2025 .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM including Galveston and Matagorda Bays. Persistent low seas and generally light, but occasionally moderate winds driven by the daily seabreeze and landbreeze cycle will continue to prevail. Expect daily opportunities for isolated to scattered showers and thunderstorms into the new week. Stronger winds and rougher seas can occur in the vicinity of the thunderstorms. In some cases, thunderstorm winds can extend far from the associated storm. $$ GMZ335-021730- Galveston Bay- 1133 PM CDT Fri Aug 1 2025 .OVERNIGHT...Southwest winds 5 to 10 knots, becoming west late. Bay waters smooth. A slight chance of showers and thunderstorms late. .SATURDAY...Northwest winds 5 to 10 knots, becoming southwest in the afternoon. Bay waters smooth. A chance of showers and thunderstorms. .SATURDAY NIGHT...Southwest winds 5 to 10 knots, becoming northwest after midnight. Bay waters smooth. A chance of showers and thunderstorms. .SUNDAY...North winds 5 to 10 knots, becoming east in the afternoon. Bay waters smooth. A chance of showers and thunderstorms. .SUNDAY NIGHT...South winds 5 to 10 knots, becoming southwest after midnight. Bay waters smooth. .MONDAY...North winds around 5 knots, becoming east in the afternoon. Bay waters smooth. A chance of showers and thunderstorms. .MONDAY NIGHT...South winds 5 to 10 knots, becoming southwest after midnight. Bay waters smooth. .TUESDAY...North winds around 5 knots, becoming southeast in the afternoon. Bay waters smooth. A chance of showers and thunderstorms. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth. .WEDNESDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ330-021730- Matagorda Bay- 1133 PM CDT Fri Aug 1 2025 .OVERNIGHT...South winds around 10 knots, becoming southwest late. Bay waters slightly choppy, diminishing to smooth late. .SATURDAY...West winds 5 to 10 knots, becoming south in the afternoon. Bay waters smooth. A chance of showers and thunderstorms in the afternoon. .SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. .SUNDAY...West winds around 5 knots, becoming south in the afternoon. Bay waters smooth. A chance of showers and thunderstorms in the morning. .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 in the afternoon. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth. .TUESDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers and thunderstorms. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth. .WEDNESDAY...South winds 5 to 10 knots. Bay waters smooth. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ350-355-021730- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- 1133 PM CDT Fri Aug 1 2025 .OVERNIGHT...South winds 5 to 10 knots, becoming southwest late. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. A slight chance of showers and thunderstorms late. .SATURDAY...West winds 5 to 10 knots, becoming southwest in the afternoon. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. A chance of showers and thunderstorms. .SATURDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. A chance of showers and thunderstorms. .SUNDAY...Northwest winds 5 to 10 knots, becoming south in the afternoon. Seas 1 foot or less. Wave Detail: West 1 foot at 4 seconds. A chance of showers and thunderstorms. .SUNDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. A chance of showers after midnight. .MONDAY...West winds 5 to 10 knots, becoming southeast in the afternoon. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. A chance of showers and thunderstorms. .MONDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. .TUESDAY...Northeast winds 5 to 10 knots, becoming east in the afternoon. Seas 1 foot or less. A chance of showers and thunderstorms. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. .WEDNESDAY...South winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms in the morning. .WEDNESDAY NIGHT...South winds around 10 knots. Seas around 2 feet. Winds and seas higher in and near thunderstorms. $$ GMZ370-375-021730- 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- 1133 PM CDT Fri Aug 1 2025 .OVERNIGHT...South winds 5 to 10 knots, becoming southwest late. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. .SATURDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds. A chance of showers and thunderstorms, mainly in the morning. .SATURDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. A chance of showers and thunderstorms after midnight. .SUNDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds. Showers likely with a chance of thunderstorms in the morning, then a chance of showers in the afternoon. .SUNDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. A chance of showers after midnight. .MONDAY...West winds around 5 knots, becoming northeast in the afternoon. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds and east 1 foot at 5 seconds. A chance of showers and thunderstorms. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms after midnight. .TUESDAY...East winds around 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. .WEDNESDAY...South winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms in the morning. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Winds and seas higher in and near thunderstorms. $$