Ounce the funnel touches the ground it may move straight or in a series of loops. The vortex may stand for a number of seconds. A tornado may reverse directions and retrace it's own path. Some vortices have been known to hop over objects on the ground before resuming its destruction. Even if there are no witnesses, its path can be determined by its tracks.
Most tracks show that tornadoes travel from southwest to northeast.
Lightning is one of the most common weather storms estimated that lightning hits the earth 100 times every second. The biggest size of hail is the size of a baseball. T World Book page 334 Encarta 2000.