Clouding over with thunderstorms developing in the morning, storms developing in the afternoon.Fairly heavy showers for a time.In the evening, storms developing. Heavy showers. NNE force 4 in the morning becoming force 3 in the middle of the day. Gusts reaching 17 knots in the morning. Slight sea. Low, short swell from SE. Excellent visibility becoming good in the middle of the day then poor.