The change from late autumn to early winter is often abrupt. Basically, overnight in fact. There I was, minding my own business, spacing out the entire month of November, when all of a sudden it's December and I am up to my eyeballs in snow. When it falls horizontally that isn't saying much, but we really did get a foot or two over a few days. Now the ground is covered and the frost probably won't penetrate down more than a few feet.
Sea smoke is an interesting phenomenon. When the cold air from the arctic whooshes down upon us like a (insert clever analogy), the "heat " from the not quite frozen Lake Superior rises causing a mist or even a small spinning vortex of steam to be seen rising into the air. The temperature needs to be close to 0F (-17C) for this to occur in a noticeable way. This morning it was -10F (-24C) so it is definitely noticeable. In fact it gets so high over the lake that sunrise is delayed by about a half hour. But it makes for some interesting light. Sometimes you start to see things in the mist, but what?