Clouding over with thunderstorms developing in the morning, warning: storms in the afternoon: considerable electrical activity.Fairly heavy showers for a time.In the evening, very cloudy with risk of storms. Light showers progressively becoming less frequent. SE force 2 in the morning turning S in the evening. Gusts reaching 11 knots until the middle of the day. Slight sea. Low, short swell from NE. Visibility reduced by mist.