ANZ200-141200-
705 PM 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. 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.
$$
ANZ254-141200- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- 705 PM EDT Thu Aug 13 2026 TONIGHT W winds 5 to 10 kt, becoming NW with gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and W 1 foot at 3 seconds. FRI NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and S 1 foot at 5 seconds. FRI NIGHT SW winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft. Wave Detail: N 1 foot at 4 seconds and S 1 foot at 5 seconds. SAT N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and S 1 foot at 6 seconds. SAT NIGHT N winds around 5 kt, becoming W around 5 kt after midnight. Seas around 2 ft. Wave Detail: N 1 foot at 4 seconds and S 1 foot at 6 seconds. SUN SW winds around 5 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and N 1 foot at 4 seconds. SUN NIGHT S winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft, building to 3 to 5 ft after midnight. A chance of showers in the evening. Showers likely after midnight. MON S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Showers likely. MON NIGHT THROUGH TUE NIGHT SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
ANZ254-141200- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- 705 PM EDT Thu Aug 13 2026 TONIGHT W winds 5 to 10 kt, becoming NW with gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and W 1 foot at 3 seconds. FRI NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and S 1 foot at 5 seconds. FRI NIGHT SW winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft. Wave Detail: N 1 foot at 4 seconds and S 1 foot at 5 seconds. SAT N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and S 1 foot at 6 seconds. SAT NIGHT N winds around 5 kt, becoming W around 5 kt after midnight. Seas around 2 ft. Wave Detail: N 1 foot at 4 seconds and S 1 foot at 6 seconds. SUN SW winds around 5 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and N 1 foot at 4 seconds. SUN NIGHT S winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft, building to 3 to 5 ft after midnight. A chance of showers in the evening. Showers likely after midnight. MON S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Showers likely. MON NIGHT THROUGH TUE NIGHT SE 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. $$