Marine Weather Net

Block Island Sound Marine Forecast


OVERNIGHT

W
WINDS
10 - 15
KNOTS

THU

W
WINDS
15 - 20
KNOTS

THU NIGHT

NW
WINDS
20 - 25
KNOTS

FRI

N
WINDS
5 - 10
KNOTS

The Marine Weather Forecast In Detail:
ANZ237 Forecast Issued: 1004 PM EST Wed Dec 03 2025

GALE WARNING IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE THURSDAY NIGHT
Overnight...W Winds 10 To 15 Kt With Gusts Up To 25 Kt. Seas 3 To 4 Ft. Wave Detail: S 4 Ft At 9 Seconds And W 3 Ft At 4 Seconds.
Thu...W Winds 15 To 20 Kt With Gusts Up To 25 Kt, Increasing To 20 To 25 Kt With Gusts Up To 35 Kt In The Afternoon. Seas 3 To 5 Ft. Wave Detail: W 4 Ft At 5 Seconds And S 3 Ft At 9 Seconds.
Thu Night...Nw Winds 20 To 25 Kt With Gusts Up To 40 Kt, Diminishing To 15 To 20 Kt With Gusts Up To 30 Kt After Midnight. Seas 3 To 5 Ft. Wave Detail: Nw 4 Ft At 5 Seconds And S 3 Ft At 9 Seconds.
Fri...N Winds 5 To 10 Kt, Becoming Sw In The Afternoon. Seas 2 To 3 Ft. Wave Detail: W 2 Ft At 4 Seconds And Se 2 Ft At 9 Seconds.
Fri Night...Sw Winds 5 To 10 Kt, Becoming Nw After Midnight. Seas Around 2 Ft. Wave Detail: Ne 1 Foot At 2 Seconds And Sw 1 Foot At 3 Seconds. A Chance Of Showers.
Sat And Sat Night...Nw Winds 5 To 10 Kt. Seas Around 2 Ft. Wave Detail: S 2 Ft At 4 Seconds And Se 2 Ft At 9 Seconds. A Chance Of Showers.
Sun Through Mon Night...N Winds 15 To 20 Kt With Gusts Up To 25 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.
SHARE THIS PAGE:           
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.
...