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.
Very cloudy skies with short clear spells. Light showers all day. In the evening, cloudy spells, sometimes dense.
Chance of light rain. N force 3 turning NE in the middle of the day then NNW force 2. Gusts reaching 17 knots in the middle of the day. Slight sea. Low, fairly long swell from SSW. Good visibility becoming good in the middle of the day then good.