Initially my view was obscured by a tree, but the entire landscape was illuminated with the flickering greenish light. At first I thought it was an electrical flash commonly seen when power lines fail in a tornado. (this is Kansas afterall. I know what that looks like). However I quickly realized that the shadows of buildings and the tree were moving indicating the fireball was moving to the South. It came into view at the last second and was still very bright. Thank you.
