...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY EVENING THROUGH
322 PM EDT Thu Sep 20 2018
.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres over the Canadian maritimes builds south over the waters
tonight, then moves east Fri. A cold front will sweep across the
waters early Sat with pre-frontal S-SW winds approaching gale force
Fri night. High pres will build east from the Great Lakes this
weekend and be followed by a reinforcing high pres area from
Ontario on Mon, which will shift east toward Nova Scotia on Tue.
For information on possible hazardous weather beyond the 24-36
hour forecast period, please visit www.weather.gov/boston and
follow the Current Hazards link above the map on the left.
E winds 5 to 10 kt. Seas 2 to 3 ft.
SE winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft.
S winds 10 to 15 kt, becoming SW 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft.
W winds 15 to 20 kt with gusts up to 30 kt, becoming N in the afternoon. Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 nm.
NE winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft.
NE winds 5 to 10 kt. Seas around 2 ft.
NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft.
NE winds 20 to 25 kt. Seas 2 to 4 ft.
E winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft.
E winds 20 to 25 kt. Seas 2 to 4 ft. A chance of showers.
SE winds 20 to 25 kt. Seas 2 to 4 ft. A chance of showers. 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.