An easterly and variable flow prevails over the South of the basin. Over the North, it is southwesterly, moderate and very variable.
For Alphen :
No gale warning.
The reliability of the situation is assessed at 90%.
Clear skies. In the evening, clear skies.
SE force 2 in the middle of the day turning NNE force 3 in the evening. Gusts reaching 13 knots in the evening. Smooth sea becoming smooth to slight in the evening. Low, short swell from NNW. Excellent visibility.