NWS Marine Forecast


   GMZ400-180900-  310 PM CDT Sun May 17 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...    Onshore winds around 20 knots will continue this afternoon  through Monday night pushing seas to 3-6 feet. The Small Craft  Advisory has been extended to Monday evening. Onshore winds will  weaken Tuesday through the end of the week. Precipitation chances  increase significantly Tuesday night through the end of the week as  a stalled frontal boundary and a series of upper level disturbances  provide several waves of precipitation.    $$
   GMZ430-180900-  Sabine Lake-  310 PM CDT Sun May 17 2026    SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH MONDAY  EVENING    TONIGHT  Southeast winds 15 to 20 knots. Lake waters rough. A  slight chance of showers and thunderstorms early this evening.  MONDAY  Southeast winds 15 to 20 knots with gusts up to  25 knots. Lake waters rough. A slight chance of showers and  thunderstorms in the afternoon.  MONDAY NIGHT  Southeast winds 15 to 20 knots, diminishing to  10 to 15 knots after midnight. Lake waters rough.  TUESDAY  Southeast winds 10 to 15 knots with gusts up to  20 knots. Lake waters choppy. A slight chance of showers and  thunderstorms in the afternoon.  TUESDAY NIGHT  Southeast winds 10 to 15 knots, diminishing to  5 to 10 knots after midnight. Lake waters choppy. A chance of  thunderstorms. A chance of showers in the evening, then showers  likely after midnight.  WEDNESDAY  Southeast winds 5 to 10 knots. Lake waters light  chop. Showers likely with a chance of thunderstorms in the  morning, then showers and thunderstorms likely in the afternoon.  WEDNESDAY NIGHT  Southeast winds 5 to 10 knots, diminishing to  around 5 knots after midnight. Lake waters light chop. A chance  of showers and thunderstorms.  THURSDAY  Southeast winds 5 to 10 knots. Lake waters light  chop. A chance of thunderstorms. A chance of showers in the  morning, then showers likely in the afternoon.  THURSDAY NIGHT  South winds 5 to 10 knots. Lake waters light  chop. A chance of showers. A chance of thunderstorms, mainly in  the evening.  FRIDAY  South winds 5 to 10 knots. Lake waters light chop.  Showers with a chance of thunderstorms.  FRIDAY NIGHT  South winds 5 to 10 knots. Lake waters light  chop. A chance of thunderstorms. A chance of showers in the  evening, then showers likely after midnight.    Winds and waves higher in and near thunderstorms.    $$