Jesse Walters of JWSevereWeather documents a supercell thunderstorm with rotation in between Dixon and Sterling, Illinois on May 17, 2017.
Shot Description

Shot 1,2 – Lightning Strikes/Thunder from vault region of supercell thunderstorm between Dixon and Sterling, Illinois

Shot 3, 4, 5, 6, 7, 8 – Various lowerings and ominous clouds/scud from the base of the supercell thunderstorm between Dixon and Sterling, Illinois.