A powerful storm system is forecast to eject over the Southern Plains into the Ozark Mountain Region through overnight, firing up a 40+ knot southerly LLJ underneath strong upper-level flow across the entire warm sector including eastern Oklahoma, southeast Kansas, Arkansas, and southern Missouri.  This will set the stage for a potentially record-breaking tornado outbreak late this afternoon, and especially overnight across much of Arkansas and southern Missouri.  This looks like a classic early spring outbreak pattern, with prime conditions for tornadoes over a large geographical area.  Stay tuned for updates, and be sure to check out TornadoVideos.net/Live throughout the day for live streaming video..  In the meantime, here are some incredible pictures taken by Colt Forney from the Hammon tornado yesterday.