Upslope flow on the north side of an outflow boundary into the Palmer Divide set the stage for an intense supercell to form. It was tornado warned several times and came as close as it possibly could to producing a tornado without doing it! The structure was amazing, and as it anchored west of Simla, it spun hard. A massive bowl formed with a merry go round under it spinning wildly! However, this is a year where there seems to be a lot of close calls without storms actually producing a tornado! Someone called in a multivortex tornado, which is absolutely false. There was never a touch down and we were very close to the action the entire time. As it moved east of Limon, CO, the structure was just gorgeous. When it approached the Kansas border it became outflow dominant and steadily weakened. It has been a long time since I saw a storm’s low level mesocyclone spin that hard and NOT produce a tornado!