A southerly, very strong and variable flow prevails over the whole area.
For Penthièvre :
No gale warning.
We are 90% sure of the situation, because the atmosphere might not be as stable as forecast.
In the evening, cloudy spells, sometimes dense.
No precipitation. SSW wind force 4. Gusts reaching 23 knots in the evening. Moderate sea. Moderate, long swell from WSW. Good visibility.