NWS Marine Forecast


   GMZ400-151800-  1253 AM CDT Tue Jul 15 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 tomorrow. The forecast  through the second half of the week will be highly dependent on  the potential tropical development in the eastern Gulf.  Regardless of development, much higher precipitation chances and  increasing winds and seas are expected Thursday through the end of  the week/weekend.    $$
   GMZ475-151800-  Coastal waters from Lower Atchafalaya River to Intracoastal City  LA from 20 to 60 NM-  1253 AM CDT Tue Jul 15 2025    TODAY  West winds around 5 knots. Seas around 2 feet this  morning, then 1 foot or less. Wave Detail: Southwest 1 foot at  5 seconds. A slight chance of showers and thunderstorms early  this morning, then a chance of showers and thunderstorms late  this morning and early afternoon.  TONIGHT  West winds around 5 knots. Seas 1 foot or less. Wave  Detail: Southwest 1 foot at 5 seconds.  WEDNESDAY  Northwest winds 5 to 10 knots. Seas 1 foot or less.  Wave Detail: West 1 foot at 4 seconds and south 1 foot at  5 seconds. A chance of thunderstorms. Showers likely, mainly in  the morning.  WEDNESDAY NIGHT  Northwest winds 5 to 10 knots. Seas 1 foot or  less. Wave Detail: Southwest 1 foot at 5 seconds. A slight chance  of showers and thunderstorms in the evening, then showers likely  with a chance of thunderstorms after midnight.  THURSDAY  Northwest winds 5 to 10 knots. Seas 1 foot or less.  Wave Detail: West 1 foot at 4 seconds and south 1 foot at  5 seconds. Thunderstorms likely. Showers.  THURSDAY NIGHT  Southwest winds 5 to 10 knots. Seas 1 foot or  less. Wave Detail: Southwest 1 foot at 4 seconds. A chance of  thunderstorms. Showers.  FRIDAY  Southwest winds around 10 knots. Seas around 2 feet. A  chance of thunderstorms. Showers.  FRIDAY NIGHT  South winds around 10 knots. Seas around 2 feet.  A chance of showers with a slight chance of thunderstorms in the  evening, then showers likely with a chance of thunderstorms after  midnight.  SATURDAY  Southwest winds 5 to 10 knots. Seas around 2 feet. A  chance of thunderstorms. Showers, mainly in the morning.  SATURDAY NIGHT  South winds 5 to 10 knots. Seas around 2 feet.  A chance of showers and thunderstorms after midnight.    Winds and seas higher in and near thunderstorms.    $$