We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Skies changeable with risk of thundery outbreaks developing.Risk of showers in the morning, light showers dying away progressively in the afternoon.In the evening, changeable skies with risk of storms. Light showers. E force 3 becoming ESE force 2 in the middle of the day then NE. Gusts reaching 18 knots in the morning. Smooth to slight sea. Low, short swell from W. Excellent visibility becoming excellent in the middle of the day.