For rocher blanc :
No gale warning.
The reliability of the situation is very good.
Fair weather with mostly clear skies. In the evening, cloudy spells, sometimes dense.
No precipitation. SW force 3 becoming WSW force 4 in the middle of the day then SW. Gusts reaching 30 knots in the evening. Smooth to slight sea becoming slight in the middle of the day. Low from ENE. Excellent visibility.