NWS Marine Forecast



 Hazardous marine condition(s):
 Marine Weather Statement
   ANZ200-140000-  705 AM EDT Thu Aug 13 2026    .Synopsis for Massachusetts and Rhode Island coastal waters...  Weak frontal boundaries will traverse the coastal waters through  Fri, with little impact outside of scattered showers and  thunderstorms. During this time, winds and seas will remain below  advisory criteria. This weekend, brief high pres builds in from the  NW, followed by low pres moving out of the northern Great Lakes late  Sun into Mon, bringing a return to unsettled conditions.    $$
   ANZ256-140000-  Coastal Waters from Montauk NY to Marthas Vineyard extending out  to 20 NM South of Block Island-  705 AM EDT Thu Aug 13 2026    TODAY  SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW  2 ft at 4 seconds and SE 1 foot at 8 seconds. Showers with a  slight chance of tstms this morning, then a slight chance of  showers this afternoon. Patchy fog this morning with vsby 1 to  3 NM.  TONIGHT  W winds 10 to 15 kt, becoming NW after midnight. Seas  2 to 3 ft. Wave Detail: W 2 ft at 4 seconds and NE 1 foot at  5 seconds.  FRI  N winds 5 to 10 kt, becoming W in the afternoon. Seas  around 2 ft. Wave Detail: SW 2 ft at 5 seconds and N 1 foot at  3 seconds.  FRI NIGHT  W winds 5 to 10 kt, becoming N 10 to 15 kt after  midnight. Seas around 2 ft. Wave Detail: N 2 ft at 3 seconds and  SW 2 ft at 5 seconds.  SAT  N winds 10 to 15 kt, becoming NW 5 to 10 kt in the  afternoon. Seas around 2 ft. Wave Detail: N 2 ft at 3 seconds and  S 1 foot at 6 seconds.  SAT NIGHT  SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:  NE 1 foot at 3 seconds and W 1 foot at 3 seconds.  SUN  SW winds 10 to 15 kt with gusts up to 20 kt. Seas around  2 ft.  SUN NIGHT  SW winds 20 to 25 kt. Seas 3 to 5 ft. Showers.  MON  W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to  5 ft. Showers likely.  MON NIGHT  NW winds 10 to 15 kt. Seas 3 to 5 ft.    Winds and seas higher in and near tstms.    Seas are reported as significant wave height, which is the  average of the highest third of the waves. Individual wave  heights may be more than twice the significant wave height.    $$