Swiss Plateau
It is caused by canalisation of the air-current along the northern edge of the Alps, during high-pressure conditions in northern or eastern Europe. Towards western Swiss Plateau, the Bise is pressed between the Jura mountains and Pre-Alps whereby it strengthens and mostly climaxes on the western shore of Lake Geneva. In summer, the Bise wind causes rather dry and sunny weather whereas in winter, it frequently forms low stratus clouds over the Swiss Plateau by strengthening the inversion layer.