NWS Marine Forecast



 Hazardous marine condition(s):
 Small Craft Advisory
   ANZ200-181800-  103 AM EDT Tue Mar 18 2025    .Synopsis for Massachusetts and Rhode Island coastal waters...  Low pres sits south of our waters today and Wed. Another low pres  may move over the waters by Fri morning with another cold front. A  break in low pressure arrives Sat and Sun before low pressure passes  to the W of the region.    $$
   ANZ256-181800-  Coastal Waters from Montauk NY to Marthas Vineyard extending out  to 20 nm South of Block Island-  103 AM EDT Tue Mar 18 2025    SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING    REST OF TONIGHT  N winds 15 to 20 kt with gusts up to 25 kt.  Seas 8 to 10 ft. Wave Detail: S 10 ft at 11 seconds and NW 1 foot  at 4 seconds. A chance of rain.  TUE  N winds 20 to 25 kt, diminishing to 15 to 20 kt in the  afternoon. Gusts up to 30 kt. Seas 7 to 10 ft, subsiding to 5 to  8 ft in the afternoon. Wave Detail: SE 9 ft at 11 seconds and NW  3 ft at 4 seconds, becoming NE 8 ft at 10 seconds and N 3 ft at  4 seconds.  TUE NIGHT  NE winds 10 to 15 kt. Gusts up to 20 kt in the  evening. Seas 5 to 7 ft, subsiding to 4 to 5 ft after midnight.  Wave Detail: E 7 ft at 10 seconds and N 1 foot at 4 seconds,  becoming E 5 ft at 10 seconds.  WED  NE winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft  at 10 seconds.  WED NIGHT AND THU  SE winds 10 to 15 kt. Seas 3 to 5 ft. Wave  Detail: SE 5 ft at 11 seconds.  THU NIGHT  SE winds 15 to 20 kt with gusts up to 25 kt. Seas  4 to 6 ft. Wave Detail: SE 6 ft at 11 seconds and S 4 ft at  5 seconds. A chance of rain in the evening, then rain after  midnight.  FRI  W winds around 20 kt with gusts up to 25 kt. Seas 6 to  9 ft. Rain.  FRI NIGHT  NW winds 20 to 25 kt with gusts up to 30 kt. Seas  6 to 9 ft.  SAT  W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to  6 ft.  SAT NIGHT  W winds 15 to 20 kt with gusts up to 25 kt. Seas  3 to 5 ft.    Seas are reported as significant wave height, which is the  average of the highest third of the waves. Individual wave  heights may be more than twice the significant wave height.    $$