NWS Marine Forecast


   GMZ400-090900-  309 PM CDT Tue Sep 8 2026    .Synopsis for Lower Atchafalaya River LA to High Island TX out  60 NM including Sabine and Calcasieu Lakes and Vermilion and Cote  Blanche Bays...    A weak upper level wave moving across the northern gulf will  support high precipitation chances over the coastal waters almost  continuously from Wednesday through Saturday. Away from storms,  high pressure centered over the southeastern U.S. will maintain  light southerly winds and low seas over the coastal waters through  the weekend.    $$
   GMZ472-090900-  Coastal waters from Intracoastal City to Cameron LA from 20 to  60 NM-  309 PM CDT Tue Sep 8 2026    TONIGHT  East winds 10 to 15 knots. Seas around 2 feet. Wave  Detail: East 2 feet at 4 seconds. A chance of showers and  thunderstorms early this evening. A slight chance of showers and  thunderstorms after midnight.  WEDNESDAY  East winds 5 to 10 knots. Seas around 2 feet. Wave  Detail: East 2 feet at 4 seconds. Showers likely with a chance of  thunderstorms.  WEDNESDAY NIGHT  East winds 10 to 15 knots, becoming southeast  5 to 10 knots after midnight. Seas around 2 feet. Wave Detail:  Southeast 1 foot at 4 seconds. A chance of showers and  thunderstorms.  THURSDAY  South winds around 5 knots. Seas 1 foot or less. Wave  Detail: Southeast 1 foot at 4 seconds. A chance of thunderstorms.  Showers likely, mainly in the morning.  THURSDAY NIGHT  South winds 5 to 10 knots. Seas 1 foot or less,  then around 2 feet after midnight. Wave Detail: Southeast 1 foot  at 5 seconds, becoming south 1 foot at 4 seconds. A slight chance  of showers in the evening, then showers likely with a slight  chance of thunderstorms after midnight.  FRIDAY  Southwest winds 5 to 10 knots. Seas around 2 feet in  the morning, then 1 foot or less. Wave Detail: South 1 foot at  4 seconds. A chance of thunderstorms. Showers, mainly in the  morning.  FRIDAY NIGHT  South winds 5 to 10 knots. Seas around 2 feet. A  slight chance of showers and thunderstorms in the evening, then a  chance of showers and thunderstorms after midnight.  SATURDAY  Southwest winds 5 to 10 knots. Seas around 2 feet. A  chance of thunderstorms. Showers likely, mainly in the morning.  SATURDAY NIGHT  South winds 5 to 10 knots. Seas around 2 feet.  A slight chance of showers and thunderstorms in the evening, then  a chance of showers and thunderstorms after midnight.  SUNDAY  Southeast winds 5 to 10 knots. Seas around 2 feet. A  chance of showers and thunderstorms.  SUNDAY NIGHT  Southeast winds 10 to 15 knots. Seas 2 to 3 feet.  A slight chance of showers and thunderstorms after midnight.    Winds and seas higher in and near thunderstorms.    $$