For Blattmann : No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Very cloudy skies with short clear spells. Some showers from late morning.
In the evening, cloudy spells, sometimes dense. Possibility of showers W force 2 becoming WSW force 3 in the middle of the day then SW. Gusts reaching 19 knots in the middle of the day. Excellent visibility becoming excellent in the middle of the day.