A southerly, weak and very variable flow prevails over the North-West of the basin. Over the South and the East, it is westerly, moderate and very variable.
For Spiekeroog :
No gale warning.
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, sunny, progressively clouding over in the afternoon. No precipitation. In the evening, very cloudy.
No precipitation. W force 3 turning NNW force 2 in the middle of the day then ESE force 3. Gusts reaching 13 knots in the morning. Smooth to slight sea becoming smooth in the middle of the day. Low, short swell from NNW. Good visibility becoming excellent in the middle of the day.