Hazardous Weather Conditions
Last Update: 703 AM EDT Tue Sep 30 2025
For More Weather Information:
20NM W Hyannis MA
Marine Zone Forecast
...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH LATE WEDNESDAY NIGHT...
Today
N winds 5 to 10 kt, becoming NE 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave detail: S 3 ft at 15 seconds and NE 1 foot at 3 seconds.
Tonight
NE winds 10 to 15 kt with gusts up to 20 kt, increasing to 20 to 25 kt with gusts up to 30 kt after midnight. Seas 2 to 4 ft. Wave detail: NE 3 ft at 3 seconds and S 3 ft at 15 seconds.
Wed
N winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave detail: N 3 ft at 5 seconds and S 3 ft at 15 seconds.
Wed Night
NE winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. Wave detail: N 3 ft at 5 seconds and S 3 ft at 14 seconds.
Thu
NE winds 10 to 15 kt. Gusts up to 25 kt in the morning. Seas 2 to 4 ft. Wave detail: N 2 ft at 5 seconds and SE 2 ft at 13 seconds.
Thu Night
NE winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. Wave detail: NE 2 ft at 5 seconds and S 1 foot at 12 seconds.
Fri Through Sat Night
SW winds 10 to 15 kt. Seas around 2 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.
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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