Hazardous Weather Conditions
Last Update: 403 PM EDT Mon Aug 17 2026
For More Weather Information:
8NM S Hyannis MA
Marine Zone Forecast
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...
Tonight
SE winds 10 to 15 kt with gusts up to 20 kt, becoming NE 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave detail: SE 2 ft at 6 seconds and SE 1 foot at 10 seconds. Patchy fog. A slight chance of showers. Vsby 1 to 3 nm, decreasing to 1 nm or less after midnight.
Tue
N winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: NE 1 foot at 4 seconds and SW 1 foot at 6 seconds. Patchy fog in the morning with vsby 1 nm or less.
Tue Night
NW winds around 5 kt. Seas around 2 ft. Wave detail: SW 1 foot at 6 seconds and E 1 foot at 8 seconds. Patchy fog. Vsby 1 to 3 nm.
Wed
W winds around 5 kt, becoming SW 10 to 15 kt in the afternoon. Seas around 2 ft. Wave detail: SW 2 ft at 6 seconds and E 1 foot at 8 seconds. Patchy fog in the morning with vsby 1 nm or less.
Wed Night
SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave detail: SW 2 ft at 3 seconds and E 1 foot at 7 seconds.
Thu And Thu Night
NW winds 5 to 10 kt. Seas around 2 ft. Wave detail: W 1 foot at 4 seconds and E 1 foot at 7 seconds. A chance of showers.
Fri Through Sat Night
E winds 10 to 15 kt. Seas around 2 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.
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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