For Osterholz :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Sun but cloud increasing in the morning, very cloudy skies to overcast in the afternoon. Light showers arriving in late morning, then dying out. In the evening, very cloudy skies becoming totally overcast.
Chance of light rain. SSW wind force 4 continuing all day. Gusts reaching 27 knots in the middle of the day. Smooth sea. Low, short swell from N. Good visibility becoming excellent in the middle of the day.