For Hallwilersee : No gale warning.
We are 85% sure of the situation, because the high pressure system could move in more quickly than forecast.
Cloudy spells, dense at times in the morning, sunny in the afternoon. No precipitation.
In the evening, clear skies. ENE force 1 freshening force 3 in the middle of the day then force 2. Gusts reaching 12 knots from the middle of the day. Poor visibility becoming excellent in the middle of the day then good.