For Port de Rosmeur :
No gale warning.
We are 75% sure of the situation, because the high pressure system could move in more quickly than forecast.
For the night from Wednesday to Thursday WNW force 1 in the early part of the night becoming NW force 2.
Smooth to slight sea. Low, fairly long swell from W. Excellent visibility becoming good in the middle of the night then poor. Daytime of Thursday 13 august : The weather will be good.
Sunny despite some cloudy spells but no rain. In the evening, light cloudy spells.
NW force 2 becoming WNW force 3 in the middle of the day then NNW. Gusts reaching 19 knots from the middle of the day. Smooth to slight sea. Low, fairly long swell from W. Poor visibility becoming excellent in the middle of the day then excellent.