An easterly, strong and variable flow prevails over the North of the basin. Over the South, it is southerly, strong and very variable.
For Penthièvre :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Overcast and misty, reduced visibility. Drizzle fading over time. In the evening, mist and fog.
No precipitation. SE force 3 in the middle of the day turning SSW force 2 in the evening. Gusts reaching 13 knots in the middle of the day. Moderate sea. Moderate, fairly long swell from WSW. Visibility reduced by dense fog becoming reduced by mist in the evening.