NWS Marine Forecast



 Hazardous marine condition(s):
 Small Craft Advisory
   ANZ200-240100-  747 AM EDT Mon Mar 23 2026    .Synopsis for Massachusetts and Rhode Island coastal waters...    A cold front crossing the region will bring rain and snow showers  to the region today with even a few thunderstorms early this  morning across the waters near Nantucket. High pres moves over  the waters Tue into Wed. Unsettled weather possible again towards  the latter half of the week.    $$
   ANZ254-240100-  Coastal waters from Provincetown MA to Chatham MA to Nantucket MA  out 20 nm-  747 AM EDT Mon Mar 23 2026    SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON    TODAY  N winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to  7 ft. Wave Detail: N 6 ft at 5 seconds and S 4 ft at 8 seconds.  Rain and tstms this morning, then a chance of showers this  afternoon.  TONIGHT  N winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to  8 ft. Wave Detail: E 7 ft at 10 seconds and NE 6 ft at 7 seconds.  A chance of snow and rain showers in the evening.  TUE  N winds 10 to 15 kt. Gusts up to 20 kt in the morning.  Seas 5 to 7 ft. Wave Detail: NE 7 ft at 9 seconds and S 3 ft at  9 seconds.  TUE NIGHT  SW winds 10 to 15 kt, increasing to 15 to 20 kt  after midnight. Seas 4 to 5 ft. Wave Detail: NE 5 ft at 9 seconds  and SW 3 ft at 4 seconds.  WED  SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to  5 ft. Wave Detail: NE 4 ft at 9 seconds and W 3 ft at 4 seconds.  WED NIGHT  SW winds 15 to 20 kt with gusts up to 25 kt. Seas  2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at  8 seconds.  THU  SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to  3 ft.  THU NIGHT  SW winds 20 to 25 kt with gusts up to 30 kt. Seas  4 to 6 ft. A chance of rain.  FRI  NW winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to  8 ft. A chance of rain.  FRI NIGHT  N winds 20 to 25 kt. Seas 5 to 7 ft.    Winds and seas higher in and near tstms.    Seas are reported as significant wave height, which is the  average of the highest third of the waves. Individual wave  heights may be more than twice the significant wave height.    $$