NWS Marine Forecast


   GMZ300-191315-  614 PM CST Tue Nov 18 2025    .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM  including Galveston and Matagorda Bays.    Light to moderate onshore flow should continue through Thursday along  with Gulf seas of 2 to 4 feet. As patchy fog develops inland for  the next couple of nights, some of that fog may drift across the  upper portions of the Bays during the late night to early morning  hours. A weak frontal boundary will sag close to the coast late  Friday into Saturday then wash out. This boundary should serve as  a focus for some scattered showers and thunderstorms and also  result in some directionally variable winds on Saturday.    $$
   GMZ350-355-191315-  Coastal waters from Freeport to Matagorda Ship Channel TX out  20 NM-Coastal waters from High Island to Freeport TX out 20 NM-  614 PM CST Tue Nov 18 2025    TONIGHT  Southeast winds around 10 knots. Seas 2 to 3 feet.  Wave Detail: Southeast 2 feet at 5 seconds.  WEDNESDAY  Southeast winds 10 to 15 knots. Seas 2 to 3 feet.  Wave Detail: Southeast 2 feet at 5 seconds. A slight chance of  showers and thunderstorms in the morning.  WEDNESDAY NIGHT  Southeast winds 10 to 15 knots. Seas 2 to  3 feet. Wave Detail: Southeast 3 feet at 5 seconds.  THURSDAY  Southeast winds 10 to 15 knots. Seas 2 to 4 feet.  Wave Detail: Southeast 3 feet at 5 seconds. A chance of showers  in the afternoon.  THURSDAY NIGHT  Southeast winds 10 to 15 knots with gusts up to  20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at  6 seconds. A chance of showers.  FRIDAY  South winds 10 to 15 knots. Seas 3 to 4 feet. Wave  Detail: South 2 feet at 6 seconds. A chance of showers. A chance  of thunderstorms in the afternoon.  FRIDAY NIGHT  South winds around 10 knots. Seas 2 to 3 feet. A  chance of showers. A chance of thunderstorms after midnight.  SATURDAY  Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A  chance of showers.  SATURDAY NIGHT  Southeast winds around 10 knots, increasing to  10 to 15 knots after midnight. Seas 2 to 3 feet.  SUNDAY  Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A  chance of showers.  SUNDAY NIGHT  Southeast winds around 15 knots, increasing to  15 to 20 knots after midnight. Seas 3 to 4 feet. A chance of  showers.    Winds and seas higher in and near thunderstorms.    $$