For Alpnachersee-Grenzstein : No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Skies changeable to very cloudy. No precipitation.
In the evening, good clear periods but lots of cloud, too. No precipitation. NNE force 2 in the morning turning NNW in the evening. Gusts reaching 10 knots in the middle of the day. Visibility reduced by mist becoming excellent in the middle of the day then good.