Low 1005 hPa centered on the East of England moving at 11 knots to the North-North-East and dropping to 995 hPa to be centered on the North of the North Sea.
For Watersportvereniging Zierikzee :
Warning moderate gale offshore.
We are 85% sure of the situation, because the high pressure system could move in more quickly than forecast.
Cloud and sun in the morning, skies clearing but storms likely in the afternoon. Showers all day. In the evening, changeable skies with risk of storms.
Possibility of showers SW force 3 becoming force 4 in the middle of the day then force 5. Gusts reaching 29 knots in the evening. Smooth to slight sea becoming slight in the middle of the day. Low, short swell from W. Good visibility becoming excellent in the middle of the day.