A southeasterly, very strong and mostly variable flow prevails over the North of the basin. Over the South, a westerly gale is raging at sea.
For Penthièvre :
Warning strong breeze offshore.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Very cloudy skies to overcast. Showers all day. In the evening, very cloudy skies becoming totally overcast.
Light showers. SSE force 3 becoming force 4 in the middle of the day then SW force 5. Gusts reaching 33 knots in the evening. Moderate sea. Moderate, long swell from SW then low, fairly long swell from S in the evening. Poor visibility becoming poor in the middle of the day then good.