Michael Welch was midshift into his job at KFC in Newcastle, Okla., on Monday afternoon when he noticed hail pounding the parking lot outside the restaurant.Then, as he looked into the distance, he saw the wall cloud of an enormous tornado rotating in front of him.“It was very large and very fast,” he said.  “I could see debris flying all over.”The 24-year-old cook grabbed his HTC cell phone and d...