That's not a shadow behind that tree. That's the lee side of the tree. The snow "shadow" gives you an idea of the wind direction and speed. (It's NNW at 11-15 mph sustained with gusts 17-20 mph) And we're now heading straight into it. For the next 18 miles, we'll be going north into that wind, and there will be nothing to break it for us. It's now, down shift and think about that recovery drink waiting for us at home.