A northeasterly and variable flow prevails over the South-West of the basin. Over the North and the East, it is westerly, moderate and variable.
Für Katwijk aan Zee : Warning moderate gale offshore.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Thick, high cloud cover. Skies becoming darker.No precipitation.In the evening, very cloudy skies becoming totally overcast. Showers. ESE force 2 in the morning freshening N force 4 in the evening. Gusts reaching 30 knots in the evening. Smooth sea becoming slight in the evening. Low, short swell from NW. Poor visibility becoming excellent in the middle of the day.