I dont think the Siberian High is close enough,the Azores high is the dominate feature and building, almost to far north you expect it in the middle of the summer to be in that position , and the Jet is to strong and the Warm front is to close, i really cant see a Easterly developing, perhaps a S.W, S, I love the snow, i am a big kid, i will stay up all night if i know there will be snow i cant see it happening, out of interest what intensity is the Siberian high at present? sorry i am not being a killjoy