A westerly, strong and very variable flow prevails over the whole area.
For Penthièvre :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Good clear periods but with plenty of cloud in the morning, hazy cloud giving way to brightening skies in the afternoon. No precipitation. In the evening, relatively clear skies becoming changeable.
NNW force 2 turning WSW force 3 in the middle of the day then W. Gusts reaching 18 knots in the evening. Slight sea. Low, fairly long swell from W. Poor visibility becoming excellent in the middle of the day.