Half and half ... Moitié, moitié

Drôle de ciel au dessus du Léman. On a cru au début que la pluie venait vers nous, mais pour finir, c'est partie du côté d'Evian.

Funny sky over the lake. We thought our walk was going to be cut short by the approaching rain, but in the end it blew over to the other side of the lake.

This is something I never saw/noticed in the UK: here you can 'see' the weather coming.