Hazardous Weather Conditions
Last Update: 703 PM EDT Mon Mar 31 2025
For More Weather Information:
20NM W Hyannis MA
Marine Zone Forecast
...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING...
Tonight
SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave detail: SW 4 ft at 7 seconds and E 1 foot at 5 seconds. Patchy fog. Rain with a slight chance of tstms. Vsby 1 nm or less.
Tue
NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave detail: W 3 ft at 7 seconds. Patchy fog in the morning. Rain likely in the morning with vsby 1 to 3 nm.
Tue Night
N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave detail: NW 2 ft at 5 seconds and SE 1 foot at 10 seconds.
Wed
NE winds around 10 kt, becoming SE in the afternoon. Seas around 2 ft. Wave detail: SW 2 ft at 7 seconds and N 1 foot at 3 seconds.
Wed Night
SE winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. Wave detail: SE 3 ft at 4 seconds and SE 1 foot at 13 seconds.
Thu And Thu Night
SW winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft. Wave detail: S 4 ft at 4 seconds and E 1 foot at 6 seconds. A chance of rain.
Fri
W winds around 10 kt. Seas 2 to 3 ft. A chance of rain.
Fri Night
N winds 5 to 10 kt. Seas around 2 ft.
Sat
E winds around 10 kt. Seas around 2 ft. A chance of rain.
Sat Night
E winds 10 to 15 kt. Seas around 2 ft. Rain likely.
winds and seas higher in and near tstms.
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.
winds and seas higher in and near tstms.
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.
Winds and seas higher in and near tstms. 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.
Additional Forecasts and Information
RADAR & SATELLITE IMAGES
