On the afternoon of August 6, 2013, the environment around most of the state of Minnesota was poised and ready to produce destructive supercell thunderstorms. Storms first began to fire in the early afternoon, and shortly after the first storms began, a large discrete supercell storm formed near South Dakota/Minnesota border. This storm quickly became severe as it tracked southeast. Though a tornado was never reported, this storm’s rotating nature and destructive capability prompted the National Weather Service to issue several tornado warnings over its life cycle.
The storm held together for over 4 hours, tracked over 200 miles, and was responsible for numerous giant hail reports, including hail up to 3″ reported in Kandiyohi county. The storm approached the Minneapolis/St. Paul area around 7:00 PM CDT, and produced widespread reports of large hail up to 2″ in diameter as well as several reports of damage from high winds.