For Roches Bleues :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Skies changeable becoming very cloudy in the afternoon. Some light showers in the morning, no precipitation in the afternoon. In the evening, clear periods developing.
No precipitation. NE force 3 turning SSE in the middle of the day then ESE. Gusts reaching 17 knots in the evening. Smooth sea becoming smooth to slight in the evening. Low, short swell from SSW. Good visibility becoming excellent in the middle of the day then good.