August 7th looked like a decent setup for western South Dakota. Good shear and moisture, moderate instability and strong lift would help fire off several supercells, including the Sturgis storm. We followed that storm from the time it passed Sturgis until it died near Murdo well into the night. It left behind a path of massive hail damage. It also injured numerous bikers and caused millions of dollars in damage at the Sturgis Bike Week Rally.

2009, August 2009, hail, lightning, South Dakota, storm