Creston, IA tornado 4/27/16

An unusual tornado day, temps in sw IA where in the low 60s and overcast. However, there was a strong low pressure located in eastern NE. The LCLs was very low and the storms formed along the warm front. Mean storm movement was 358@40. Tornado for sw of Creston and lifted to approx 200 ft AGL until it passed Creston. Then it sat down just north of town. A few power flashes were noticed, but the area is mainly pastureland and no damage noted.