Very cloudy with risk of thunderstorms in the morning, storms developing in the afternoon.Showers all day.In the evening, warning: storms: considerable electrical activity. Heavy showers. S force 2 turning WSW force 3 in the middle of the day then W. Gusts reaching 12 knots in the evening. Smooth to slight sea. Low, short swell from SW. Visibility reduced by fog becoming good in the middle of the day then reduced by mist.