NWS Marine Forecast



 Hazardous marine condition(s):
 Small Craft Advisory
   ANZ232-220100-  Nantucket Sound-  705 AM EST Wed Jan 21 2026    SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM EST THIS EVENING  THROUGH THURSDAY EVENING    TODAY  W winds 10 to 15 kt, becoming SW 15 to 20 kt this  afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and  SE 1 foot at 9 seconds.  TONIGHT  SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to  4 ft. Wave Detail: SW 4 ft at 4 seconds and SE 1 foot at  10 seconds. A chance of rain after midnight.  THU  SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to  5 ft. Wave Detail: SW 4 ft at 5 seconds and SE 1 foot at  10 seconds.  THU NIGHT  W winds 15 to 20 kt with gusts up to 25 kt. Seas  3 to 5 ft. Wave Detail: W 4 ft at 5 seconds and SE 1 foot at  10 seconds.  FRI  W winds 15 to 20 kt, increasing to 20 to 25 kt in the  afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: W 4 ft  at 5 seconds and SE 1 foot at 11 seconds.  FRI NIGHT  NW winds 25 to 30 kt. Seas 3 to 5 ft. Wave Detail: W  5 ft at 5 seconds and SE 1 foot at 11 seconds. Light freezing  spray in the evening. Heavy freezing spray after midnight.  SAT  NW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to  5 ft. Heavy freezing spray.  SAT NIGHT  NW winds 15 to 20 kt. Seas 2 to 3 ft. A chance of  snow.  SUN  N winds 15 to 20 kt. Seas 2 to 3 ft. Snow likely. Vsby  1 NM or less.  SUN NIGHT  NE winds 15 to 20 kt. Seas 2 to 3 ft. Freezing  spray. Snow likely. Vsby 1 NM or less.    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.    $$