In this case though it's less a matter of temperature and more a matter of precipitation. The EC has a sharper upper level trough engaging the cold air with much greater vorticity advection and large amounts of precipitation. It's the precip intensity which keeps it as snow in the slack flow. It's a very delicate setup, almost all other models have different ideas (less development, precip further east etc.), but they have been trending towards the EC. There should be somewhat better agreement tomorrow, but still plenty of spread.
Originally Posted by: xioni2