ANZ200-220900-
405 PM EDT Tue Apr 21 2026
.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres weakens and shifts east tonight. Low pres brings clouds
and scattered showers over the waters on Wed. High pres builds in
for late in the week and weekend, it will be unsettled with periods
of clouds.
$$
ANZ230-220900- Boston Harbor- 405 PM EDT Tue Apr 21 2026 TONIGHT S winds 10 to 15 kt. Waves around 2 ft. WED S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft. A chance of showers. WED NIGHT S winds 5 to 10 kt. Waves around 2 ft in the evening, then 1 foot or less. Patchy fog. A chance of showers in the evening. THU W winds 5 to 10 kt, becoming NW 10 to 15 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. THU NIGHT NW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Waves around 2 ft in the evening, then 1 foot or less. FRI AND FRI NIGHT NW winds 5 to 10 kt. Waves 1 foot or less. SAT THROUGH SUN NIGHT E winds 5 to 10 kt. Waves 1 foot or less. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
ANZ230-220900- Boston Harbor- 405 PM EDT Tue Apr 21 2026 TONIGHT S winds 10 to 15 kt. Waves around 2 ft. WED S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft. A chance of showers. WED NIGHT S winds 5 to 10 kt. Waves around 2 ft in the evening, then 1 foot or less. Patchy fog. A chance of showers in the evening. THU W winds 5 to 10 kt, becoming NW 10 to 15 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. THU NIGHT NW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Waves around 2 ft in the evening, then 1 foot or less. FRI AND FRI NIGHT NW winds 5 to 10 kt. Waves 1 foot or less. SAT THROUGH SUN NIGHT E winds 5 to 10 kt. Waves 1 foot 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. $$