Conditions finally became conducive to severe weather again late on July 13th. Upslope flow into north central Wyoming off the Big Horn mountains would generate severe thunderstorms. Adequate wind shear, instability and moisture would be present for a couple of supercells. One such storm formed just east of Sheridan and tracked southeast to Gillette. It produced tennisball sized hail, high winds and had decent structure. As evening arrived, a complex of storms formed and extended all the way out to near Pierre, SD where we arrived at our hotel at 2am! The next day would take us to Iowa for a potent event! Enjoy the pics!