Warning: intensely active electrical storms in the morning, sun and storm clouds in the afternoon.Some heavy showers in the morning, possibility of showers in the afternoon.In the evening, good clear periods but cloud building. Chance of light rain. ESE force 4 becoming force 5 in the middle of the day then E. Gusts reaching 21 knots from the middle of the day. Slight sea. Low, fairly long swell from NNE. Excellent visibility.