@Andrea-Perron – Yes I didn't cover ensembles in this article, but actually that might be a nice idea to cover in my next one. Thanks @Gkikas-LGPZ for that nice diagram. And special thanks to Ed Lorenz for being awesome and discovering Chaos theory :)

@psinodinos On Windy, AROME has NOT been updated since 18h UTC yesterday 04/09. On Meteociel, the last update has been done today 05/09 at 06h UTC. So it’s not a surprise if you see differences.