For Grüner See : No gale warning.
The reliability of the situation is very good.
Very cloudy skies to overcast. Some light rain in the morning, possibility of a few spots in the afternoon.
In the evening, very cloudy skies becoming totally overcast. Light rain stopping as night falls. NW wind force 2 continuing all day. Gusts reaching 17 knots in the middle of the day. Excellent visibility.