Marine Weather Net

Block Island Sound Marine Forecast


THIS AFTERNOON

SE
WINDS
5 KNOTS

TONIGHT

SW
WINDS
5 KNOTS

TUE

N
WINDS
5 - 10
KNOTS

TUE NIGHT

NE
WINDS
15 - 20
KNOTS

The Marine Weather Forecast In Detail:
ANZ237 Forecast Issued: 104 PM EDT Mon Sep 29 2025

SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY EVENING
This Afternoon...Se Winds Around 5 Kt. Seas 2 To 3 Ft. Wave Detail: Se 2 Ft At 6 Seconds And Se 2 Ft At 16 Seconds.
Tonight...Sw Winds Around 5 Kt, Becoming W After Midnight. Seas 2 To 4 Ft. Wave Detail: Se 4 Ft At 15 Seconds And Se 2 Ft At 6 Seconds.
Tue...N Winds 5 To 10 Kt, Becoming Ne 10 To 15 Kt With Gusts Up To 20 Kt In The Afternoon. Seas 4 To 6 Ft. Wave Detail: Se 6 Ft At 15 Seconds.
Tue Night...Ne Winds 15 To 20 Kt, Increasing To 20 To 25 Kt After Midnight. Gusts Up To 30 Kt. Seas 5 To 8 Ft. Wave Detail: Ne 6 Ft At 5 Seconds And Se 6 Ft At 14 Seconds.
Wed...Ne Winds 20 To 25 Kt With Gusts Up To 30 Kt. Seas 6 To 9 Ft. Wave Detail: Ne 6 Ft At 6 Seconds And S 6 Ft At 15 Seconds.
Wed Night...Ne Winds 20 To 25 Kt With Gusts Up To 30 Kt. Seas 5 To 8 Ft. Wave Detail: Ne 6 Ft At 6 Seconds And Se 6 Ft At 14 Seconds.
Thu...Ne Winds 20 To 25 Kt. Seas 5 To 7 Ft.
Thu Night...Ne Winds 10 To 15 Kt With Gusts Up To 20 Kt. Seas 3 To 5 Ft.
Fri And Fri Night...W Winds 5 To 10 Kt. Seas 2 To 3 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.
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ANZ200 Synopsis Issued: 1005 AM EDT Tue Oct 15 2024

Synopsis For Massachusetts And Rhode Island Coastal Waters...
A Couple Of Weaker Fronts Push Across The Waters Through Thursday, Although No Significant Weather Is Expected. Gusty West To Northwest Winds Do Continue Through Wednesday Night. High Pressure Builds In From The West Late This Week And Will Stick Around Through The Upcoming Weekend.
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