ANZ200-201500-
1005 PM EDT Wed Aug 19 2026
.Synopsis for Massachusetts and Rhode Island coastal waters...
Weak high pres will be offshore by late today. A weak trough of low
pres moves through Thu, followed by yet another high pres system for
Fri. Unsettled conditions return over the weekend with arrival of
another low pres.
$$
ANZ256-201500- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 1005 PM EDT Wed Aug 19 2026 OVERNIGHT SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 2 seconds. THU W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at 3 seconds. THU NIGHT W winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at 3 seconds. A chance of showers. FRI NE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: N 2 ft at 3 seconds and SE 2 ft at 8 seconds. A chance of showers. FRI NIGHT E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 4 seconds and SE 2 ft at 9 seconds. A chance of showers. SAT AND SAT NIGHT SE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 5 seconds and E 2 ft at 8 seconds. Showers likely. SUN S winds 5 to 10 kt. Seas around 3 ft. Showers likely. SUN NIGHT THROUGH MON NIGHT W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
ANZ256-201500- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 1005 PM EDT Wed Aug 19 2026 OVERNIGHT SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at 2 seconds. THU W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at 3 seconds. THU NIGHT W winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at 3 seconds. A chance of showers. FRI NE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: N 2 ft at 3 seconds and SE 2 ft at 8 seconds. A chance of showers. FRI NIGHT E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 4 seconds and SE 2 ft at 9 seconds. A chance of showers. SAT AND SAT NIGHT SE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 5 seconds and E 2 ft at 8 seconds. Showers likely. SUN S winds 5 to 10 kt. Seas around 3 ft. Showers likely. SUN NIGHT THROUGH MON NIGHT W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 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. $$