debris doing their best to find the survivors and anyone else that's in that, and it's -- i don't even like walking over there. >> i understand. i appreciate you showing us. we want you to stay safe, and we know you're surrounded by debris, and i can hear the emotion in your voice. michael gordon there for us on the ground in mayfield, who also took some just incredible video of the tornado in southern missouri, video that i want to show meteorologist bill karins, so bill, you're back with us, and if we can show that video and kind of watch it together, you're more of the trained eye here. what is it that you pick up and glean from this video? >> the ef-4s and ef-5s, there's a tornado scale it goes from 0 to 5, 4 and 5 are the strongest. about 1% of tornados are these