Never mind the chase for snow in the coming weeks, for Cornwall and much of Devon, a decent chance of something thundery to chase tomorrow. Some quite heavy/torrential downpours possible at least. Hi-res charts showing most instability reserved for Cornwall especially west Cornwall. South facing coasts also most prone. I reckon The Lizard peninsula being a good shout for something thundery tomorrow.
Euro4 even has some heavy ppn/something thundery over west Cornwall as early as 6am tomorrow.