A southwesterly, very strong and very variable flow prevails over the whole area.
For Hornumer Yacht Club :
Warning moderate gale.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Sunny becoming changeable in the afternoon. No precipitation. In the evening, overcast skies.
Light rain getting progressively heavier. W force 4 turning SW force 5 in the middle of the day then SSW force 7. Gusts reaching 47 knots in the evening. Slight sea becoming moderate in the evening. Low, short swell from WNW. Excellent visibility.