Lying mostly north of the Arctic Circle, the Central Siberian Plateau is enjoying sunshine today, but in several weeks the sun will fall below the horizon (click for full-size):
Winter has gotten off to an early start in Russia, and many forecasters are calling for an unusually cold winter in the Northern Hemisphere. In the above image, lake-effect cloud streets can be seen to be streaming off a few of the larger lakes. According to the GFS forecast model, mid-day temperatures here are running below 0 deg. F.