CHAMPAIGN COUNTY, Ill. (WCIA) — Champaign County looked up and exclaimed Thursday morning. A massive roll cloud was hovering overhead.

People said they could even feel a difference in the air when the cloud drifted by.

Photo courtesy of Trina Reynolds

Photo courtesy of Jon Ramsey

Roll clouds are very rare. They are related to a shelf cloud, but without a parent cloud or storm to form off of.

The roll cloud could be seen all across Champaign County.