Final Edit of December Scene

I have discovered a way to get rid of the block shadows on the snow which appeared after I added the blizzard.

By going to the material editor and selecting exclude, I was able to exclude the snow from the omni light meaning no shadows were cast over the falling blizzard. However, this made the blizzard appear black. So to counteract this, I then added another omni light and by including the blizzard this time, I was able to make the blizzard appear white again.