I live in Detroit and its normally not this cold until late January. Was looking at a retrograding low pressure system as well that came in off the Atlantic and into Canada. I know east to west movement isn't unheard of, but don't they usually stall out and then go back east? This one seems like its going to make it all the way to the Pacific! I'm not trying to overreact here but it just seems like this is a little more than a late fall/early winter cold snap. Odd things happening in GB as well. Whats your take on all of this Kevin?