For Urnersee, bei Altdorf : No gale warning.
The reliability of the situation is assessed at 95%.
Skies changeable to very cloudy. No precipitation.
In the evening, good clear periods but lots of cloud, too. No precipitation. SSE force 3 becoming SE force 2 in the middle of the day then SSE force 1. Gusts reaching 22 knots in the morning. Excellent visibility.