I found this light pattern interesting as my walking partner and I left a bagel shop last week. At first I couldn't figure it out .... looked like the snow bank had a "window" in its lower extremities that was allowing sunlight through the snowbank. Finally I realized the light was really bouncing off of a window behind me and patterning the ground. See if you can see it as I did. Sun at 10:30 position off to the left.