


Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
484 FZUS54 KHGX 031723 CWFHGX Coastal Waters Forecast for Texas National Weather Service Houston/Galveston TX 1223 PM CDT Sun Aug 3 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. GMZ300-040615- 1223 PM CDT Sun Aug 3 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 remain the rule into early next week. Expect daily opportunities for isolated to scattered showers and thunderstorms for the next several days as well. Stronger winds and rougher seas can occur in the vicinity of any thunderstorms. In some cases, thunderstorm winds can extend far from the associated storm. Later next week, winds may increase modestly, pushing seas more into a 2 to 3 foot range. $$ GMZ335-040615- Galveston Bay- 1223 PM CDT Sun Aug 3 2025 .THIS AFTERNOON...East to southeast winds around 5 knots, becoming south late. Bay waters smooth. A chance of showers and thunderstorms early, then a slight chance of showers and thunderstorms late. .TONIGHT...Southwest winds around 5 knots. Bay waters smooth. .MONDAY...North winds around 5 knots, becoming southeast in the afternoon. Bay waters smooth. A chance of showers and thunderstorms in the afternoon. .MONDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. .TUESDAY...North winds around 5 knots, becoming southeast in the afternoon. Bay waters smooth. A chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. .WEDNESDAY...South winds 5 to 10 knots. Bay waters smooth. A chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. .THURSDAY...Southwest winds around 5 knots, becoming south in the afternoon. Bay waters smooth. A chance of showers and thunderstorms in the afternoon. .THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ330-040615- Matagorda Bay- 1223 PM CDT Sun Aug 3 2025 .THIS AFTERNOON...South winds 5 to 10 knots. Bay waters smooth. Showers likely with a chance of thunderstorms early, then a slight chance of showers and thunderstorms late. .TONIGHT...South winds 5 to 10 knots. Bay waters smooth. .MONDAY...Southwest winds around 5 knots, becoming southeast in the afternoon. Bay waters smooth. .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 in the afternoon. .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. .THURSDAY...South winds 5 to 10 knots. Bay waters smooth. .THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ350-355-040615- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- 1223 PM CDT Sun Aug 3 2025 .THIS AFTERNOON...East to southeast winds 5 to 10 knots becoming southeast late. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. A chance of showers and thunderstorms early, then a slight chance of showers and thunderstorms late. .TONIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. .MONDAY...West winds around 5 knots, becoming southeast in the afternoon. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. A chance of thunderstorms in the morning. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. .TUESDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. A chance of showers. A chance of thunderstorms in the afternoon. .TUESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. .WEDNESDAY...South winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms in the morning. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. .THURSDAY...South winds 5 to 10 knots. Seas around 2 feet. .THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Winds and seas higher in and near thunderstorms. $$ GMZ370-375-040615- 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 PM CDT Sun Aug 3 2025 .THIS AFTERNOON...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. A chance of showers with a slight chance of thunderstorms early. .TONIGHT...South winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. .MONDAY...West winds around 5 knots, becoming northeast in the afternoon. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. A chance of thunderstorms in the morning. .MONDAY NIGHT...Southeast winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. .TUESDAY...Southeast winds around 5 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. A chance of showers and thunderstorms. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. .WEDNESDAY...South winds around 5 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. .THURSDAY...South winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms in the morning. .THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Winds and seas higher in and near thunderstorms. $$