Yeah that was a tornado. If its a cloud with rotation touching the ground or debris is visible on the ground rotating then tornado. Otherwise if rotating but not debris or touching ground then funnel cloud. If not rotating then just a scud cloud. Another good indicator of a tornado vs straight line winds is debris is often twisted and snapped in multiple directions for tornado and if straight line winds pushed down in one direction. When i was out in Nebraska i experienced many times with rotating funnels over our base and housing. Once we had a funnel cloud drop infront of my apartment and did some wind damage before sucking up the hill over our apt and touching down finally a half mile away as and EF-1.