Extraordinary lightning flashed across the sky in Chicago on the evening of Tuesday, August 27, as storms passed through the area.Footage by photographer Craig Shimala shows the Chicago skyline as what he called “insane” lightning dances above.Shimala told Storyful “huge crawling lightning put on a show as far as the eye could see.”The National Weather Service warned of damaging winds and hail, lightning strikes, and torrential downpours. Credit: Craig Shimala via Storyful