NWS Marine Forecast


   GMZ400-140700-  101 PM CDT Sun Jul 13 2025    .Synopsis for Lower Atchafalaya River LA to High Island TX out  60 NM including Sabine and Calcasieu Lakes and Vermilion and Cote  Blanche Bays...    High pressure extending across the northern Gulf will maintain  light onshore winds and low seas through late next week. Daily  scattered showers and thunderstorms will continue over the coastal  waters through Monday with lower rain chances Tuesday and  Wednesday as upper level ridging builds across the northern gulf.    $$
   GMZ475-140700-  Coastal waters from Lower Atchafalaya River to Intracoastal City  LA from 20 to 60 NM-  101 PM CDT Sun Jul 13 2025    TONIGHT  South winds 5 to 10 knots. Seas around 2 feet. Wave  Detail: South 2 feet at 5 seconds. A slight chance of showers and  thunderstorms early this evening. A slight chance of showers and  thunderstorms after midnight, then a chance of showers and  thunderstorms late.  MONDAY  Southwest winds 5 to 10 knots. Seas around 2 feet. Wave  Detail: South 2 feet at 5 seconds. A chance of showers and  thunderstorms.  MONDAY NIGHT  Southwest winds around 5 knots. Seas around  2 feet. Wave Detail: South 1 foot at 5 seconds. A slight chance  of showers and thunderstorms after midnight.  TUESDAY  West winds around 5 knots. Seas around 2 feet. Wave  Detail: Southwest 1 foot at 5 seconds. A chance of showers and  thunderstorms, mainly in the morning.  TUESDAY NIGHT  West winds around 5 knots. Seas 1 foot or less.  Wave Detail: Southwest 1 foot at 5 seconds. A slight chance of  showers and thunderstorms after midnight.  WEDNESDAY  Northwest winds 5 to 10 knots. Seas 1 foot or less.  Wave Detail: West 1 foot at 4 seconds and south 1 foot at  5 seconds. A chance of showers and thunderstorms.  WEDNESDAY NIGHT  West winds around 5 knots. Seas 1 foot or  less. A slight chance of showers and thunderstorms in the  evening, then a chance of showers and thunderstorms after  midnight.  THURSDAY  North winds around 5 knots. Seas 1 foot or less. A  chance of thunderstorms. Showers.  THURSDAY NIGHT  Southwest winds 5 to 10 knots. Seas 1 foot or  less. A chance of showers with a slight chance of thunderstorms  in the evening, then showers likely with a chance of  thunderstorms after midnight.  FRIDAY  Southwest winds around 5 knots. Seas 1 foot or less. A  chance of thunderstorms. Showers.  FRIDAY NIGHT  South winds around 5 knots, increasing to around  10 knots after midnight. Seas 1 foot or less, then around 2 feet  after midnight. A slight chance of showers and thunderstorms in  the evening, then a chance of showers and thunderstorms after  midnight.    Winds and seas higher in and near thunderstorms.    $$