For Bostalsee : No gale warning.
We are 80% sure of the situation, because the atmosphere might not be as stable as forecast.
Cloud and sun in the morning, increasing sunny spells in the afternoon. The risk of seeing rain will remain low.
In the evening, cloud and long sunny periods. Chance of light rain. W force 3 in the morning turning NW in the evening. Gusts reaching 22 knots from the middle of the day. Excellent visibility.