For Cerf Island and Long Island :
No gale warning.
The reliability of the situation is very good.
Changeable skies with risk of storms. Showers. In the evening, skies clearing but continuing risk of storms.
Light showers progressively becoming less frequent. SE wind force 5 from the middle of the day. Gusts reaching 23 knots in the middle of the day. Moderate sea. Low, fairly long swell from SSE. Excellent visibility.