Hazardous marine condition(s):
Storm Warning
ANZ200-172100-
405 AM EDT Tue Mar 17 2026
.Synopsis for Massachusetts and Rhode Island coastal waters...
Strong low pres will pres will continue to intensify tonight as it
lifts northeast through Quebec. This will drag a strong cold front
across southern New Eng and the coastal waters very late tonight.
The strong low pres will move N through eastern Canada on Tue. High
pres builds over the waters Wed into Thu, moving offshore Fri as a
cold front approaches from the west.
$$
ANZ255-172100- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 405 AM EDT Tue Mar 17 2026 STORM WARNING IN EFFECT UNTIL 8 AM EDT THIS MORNING TODAY W winds 25 to 30 kt with gusts up to 40 kt. Seas 11 to 15 ft, subsiding to 9 to 13 ft this afternoon. Wave Detail: S 15 ft at 11 seconds and W 2 ft at 5 seconds, becoming SW 13 ft at 11 seconds and W 2 ft at 5 seconds. A chance of rain this morning. TONIGHT W winds 20 to 25 kt with gusts up to 30 kt. Seas 9 to 12 ft, subsiding to 7 to 10 ft after midnight. Wave Detail: SW 12 ft at 11 seconds and W 3 ft at 6 seconds, becoming SW 10 ft at 10 seconds and NW 2 ft at 5 seconds. WED NW winds 15 to 20 kt, becoming W 5 to 10 kt in the afternoon. Seas 5 to 8 ft, subsiding to 4 to 6 ft in the afternoon. Wave Detail: S 8 ft at 10 seconds and NW 3 ft at 5 seconds, becoming S 6 ft at 10 seconds and W 1 foot at 5 seconds. WED NIGHT S winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 10 seconds and W 1 foot at 5 seconds. THU SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 9 seconds. THU NIGHT S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. FRI AND FRI NIGHT SW winds 5 to 10 kt, increasing to 15 to 20 kt. Seas 2 to 4 ft. SAT AND SAT NIGHT W winds 15 to 20 kt, becoming SW 25 to 30 kt. Seas 3 to 5 ft. A chance of rain. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
ANZ255-172100- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 405 AM EDT Tue Mar 17 2026 STORM WARNING IN EFFECT UNTIL 8 AM EDT THIS MORNING TODAY W winds 25 to 30 kt with gusts up to 40 kt. Seas 11 to 15 ft, subsiding to 9 to 13 ft this afternoon. Wave Detail: S 15 ft at 11 seconds and W 2 ft at 5 seconds, becoming SW 13 ft at 11 seconds and W 2 ft at 5 seconds. A chance of rain this morning. TONIGHT W winds 20 to 25 kt with gusts up to 30 kt. Seas 9 to 12 ft, subsiding to 7 to 10 ft after midnight. Wave Detail: SW 12 ft at 11 seconds and W 3 ft at 6 seconds, becoming SW 10 ft at 10 seconds and NW 2 ft at 5 seconds. WED NW winds 15 to 20 kt, becoming W 5 to 10 kt in the afternoon. Seas 5 to 8 ft, subsiding to 4 to 6 ft in the afternoon. Wave Detail: S 8 ft at 10 seconds and NW 3 ft at 5 seconds, becoming S 6 ft at 10 seconds and W 1 foot at 5 seconds. WED NIGHT S winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 10 seconds and W 1 foot at 5 seconds. THU SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 9 seconds. THU NIGHT S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. FRI AND FRI NIGHT SW winds 5 to 10 kt, increasing to 15 to 20 kt. Seas 2 to 4 ft. SAT AND SAT NIGHT W winds 15 to 20 kt, becoming SW 25 to 30 kt. Seas 3 to 5 ft. A chance of rain. 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. $$