We took off from Sioux Center, IA at 7:00AM with a target of Marysville, KS. We arrived in Marysville, KS around noon,met up with Marcus, Derek, and David; grabbed a bite to eat, topped off our tanks and reviewed data. The SPC issued a torndao watch to our NW, even though I'm not one to chase "dots" after reviewing the data on the 18z model run we knew we had to run a little NW so we took off and ended up in Geneva, NE we were further south than most chasers, this gave us a great vantage point to see towers shooting up.