NWS Marine Forecast


   GMZ300-180630-  1234 PM CDT Fri Oct 17 2025    .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM  including Galveston and Matagorda Bays.    Moderate onshore winds and isolated to scattered showers and  thunderstorms are anticipated today through Saturday. A weak  front is expected to push into the waters late Saturday night into  Sunday morning. After a brief wind shift to the north and  northeast, winds will swing back around to the southeast by  Monday. This shift in winds will not result in significant changes  to wave heights, but may result in confused seas until the return  of onshore winds has been persistent enough to keep more  consistent wave directions.    $$
   GMZ370-375-180630-  Waters from Freeport to Matagorda Ship Channel TX from 20 to  60 NM-Waters from High Island to Freeport TX from 20 to 60 NM-  1234 PM CDT Fri Oct 17 2025    THIS AFTERNOON  Southeast winds 10 to 15 knots. Seas 3 to  4 feet. Wave Detail: Southeast 3 feet at 6 seconds. A chance of  showers and thunderstorms.  TONIGHT  Southeast winds around 15 knots with gusts up to  20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at  6 seconds. A slight chance of thunderstorms. A slight chance of  showers in the evening, then a chance of showers after midnight.  SATURDAY  South winds 10 to 15 knots. Seas 3 to 4 feet. Wave  Detail: South 3 feet at 5 seconds. A chance of showers in the  morning.  SATURDAY NIGHT  Southwest winds around 10 knots. Seas around  3 feet. Wave Detail: South 2 feet at 5 seconds.  SUNDAY  Northwest winds around 15 knots, becoming northeast  15 to 20 knots in the afternoon. Seas around 3 feet. Wave Detail:  Southwest 2 feet at 5 seconds and northeast 2 feet at 5 seconds.  SUNDAY NIGHT  Northeast winds 10 to 15 knots. Seas around  3 feet. Wave Detail: Northeast 2 feet at 4 seconds and east  2 feet at 7 seconds.  MONDAY  Southeast winds around 10 knots. Seas 2 to 3 feet.  MONDAY NIGHT  South winds 10 to 15 knots. Seas 2 to 3 feet.  TUESDAY  South winds 5 to 10 knots, becoming southeast in the  afternoon. Seas 2 to 3 feet.  TUESDAY NIGHT  East winds around 10 knots, increasing to 10 to  15 knots after midnight. Seas around 2 feet.    Winds and seas higher in and near thunderstorms.    $$