Sunny after slow dispersal of fog in the morning, warning: storms in the afternoon: considerable electrical activity.Risk of showers in the morning, heavy showers in the afternoon.In the evening, stormy but gradually improving. Showers becoming less frequent. NE force 2 in the morning temporarily N in the middle of the day. Gusts reaching 11 knots from the middle of the day. Slight sea. Low, fairly long swell from S. Visibility reduced by fog becoming poor in the middle of the day then reduced by fog.