A westerly, moderate and very variable flow prevails over the whole area.
For Sylt, Sansibar :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
In the evening, very cloudy.
No precipitation. SW wind force 4. Gusts reaching 19 knots in the evening. Smooth to slight sea. Low, short swell from WNW. Excellent visibility.