Changeable skies completely clouding over during the morning, overcast skies in the afternoon.Fairly heavy showers for a time.In the evening, storms developing. Showers. SE force 5 in the morning becoming ESE force 4 in the evening. Gusts reaching 25 knots all day. Slight sea. Low, short swell from S. Excellent visibility becoming good in the middle of the day then reduced by mist.