A northeasterly and variable flow prevails over the South of the basin. Over the North, it is southwesterly, moderate 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.
Skies clearing but remaining hazy during the morning, hazy cloud giving way to brightening skies in the afternoon. No precipitation. In the evening, skies with few clouds.
WNW force 3 in the morning becoming W force 4 in the middle of the day. Gusts reaching 23 knots in the evening. Smooth to slight sea becoming slight in the middle of the day. Low, short swell from W. Good visibility becoming excellent in the middle of the day then excellent.