NWS Marine Forecast


   ANZ200-210700-  105 PM EST Thu Nov 20 2025    .Synopsis for Massachusetts and Rhode Island coastal waters...  High pres will remain over New England Thu before heading to the  Maritimes. A cold front will approach the waters from the Great  Lakes Fri before moving offshore Sat. High pres will build back into  the region early next week.    $$
   ANZ254-210700-  Coastal waters from Provincetown MA to Chatham MA to Nantucket MA  out 20 nm-  105 PM EST Thu Nov 20 2025    THIS AFTERNOON  NE winds 5 to 10 kt. Seas around 2 ft. Wave  Detail: N 1 foot at 3 seconds and S 1 foot at 7 seconds.  TONIGHT  NE winds 5 to 10 kt, becoming NW after midnight. Seas  around 2 ft. Wave Detail: S 2 ft at 7 seconds and NE 1 foot at  4 seconds.  FRI  W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up  to 25 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft  at 3 seconds and SE 2 ft at 7 seconds.  FRI NIGHT  SW winds 10 to 15 kt with gusts up to 20 kt. Seas  2 to 4 ft. Wave Detail: S 2 ft at 5 seconds and E 2 ft at  7 seconds. Patchy fog after midnight. A chance of showers after  midnight with vsby 1 to 3 NM.  SAT  NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to  4 ft. Wave Detail: N 3 ft at 4 seconds and S 2 ft at 6 seconds. A  chance of rain.  SAT NIGHT  N winds 15 to 20 kt, diminishing to 10 to 15 kt  after midnight. Seas 2 to 4 ft. Wave Detail: NE 3 ft at 6 seconds  and S 2 ft at 6 seconds.  SUN THROUGH MON NIGHT  NW winds 10 to 15 kt with gusts up to  20 kt. Seas 2 to 4 ft.    Seas are reported as significant wave height, which is the  average of the highest third of the waves. Individual wave  heights may be more than twice the significant wave height.    $$