NWS Marine Forecast


   ANZ200-051200-  703 PM EDT Tue Aug 4 2026    .Synopsis for Massachusetts and Rhode Island coastal waters...  High pressure will build and remain situated off the eastern  seaboard for the rest of the week and into weekend. This will result  in persistant southwest winds across the coastal waters.    $$
   ANZ231-051200-  Cape Cod Bay-  703 PM EDT Tue Aug 4 2026    TONIGHT  S winds 5 to 10 kt, diminishing to around 5 kt after  midnight. Seas around 2 ft this evening, then 1 foot or less.  Wave Detail: SE 2 ft at 7 seconds and SW 1 foot at 2 seconds,  becoming SW 1 foot at 2 seconds and S 1 foot at 7 seconds.  WED  SE winds around 5 kt, becoming S in the afternoon. Seas  1 foot or less, then around 2 ft in the afternoon. Wave Detail:  SW 1 foot at 3 seconds and S 1 foot at 7 seconds, becoming SW  1 foot at 2 seconds and SE 1 foot at 7 seconds.  WED NIGHT  SW winds 5 to 10 kt. Seas around 2 ft in the  evening, then 1 foot or less. Wave Detail: SW 1 foot at 2 seconds  and SE 1 foot at 7 seconds, becoming SW 1 foot at 2 seconds and S  1 foot at 7 seconds.  THU  SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts  up to 20 kt in the afternoon. Seas 1 foot or less, then around  2 ft in the afternoon. Wave Detail: SW 1 foot at 2 seconds and S  1 foot at 6 seconds, becoming SW 1 foot at 2 seconds and S 1 foot  at 7 seconds. Patchy fog in the morning with vsby 1 to 3 NM.  THU NIGHT THROUGH FRI NIGHT  SW winds 10 to 15 kt with gusts up  to 20 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and  SW 1 foot at 3 seconds.  SAT THROUGH SUN NIGHT  SW winds 10 to 15 kt with gusts up to  20 kt. Seas 2 to 3 ft. Wave Detail: SW 1 foot at 2 seconds and S  1 foot at 6 seconds.    Seas are reported as significant wave height, which is the  average of the highest third of the waves. Individual wave  heights may be more than twice the significant wave height.    $$