oh, my gosh reporter: an ef-3 tornado packing winds topping 160 miles an hour. this drone video capturing a rare glimpse of the andover twister. while you can t hear it, the images stunning you can see degree suck skyward as the funnel forms, seconds before the twister starts tearing through homes. we were not prepared when we came outside to see it, all of this. it is pretty shocking. reporter: eric and melanie barney showed the closet where the entire family hid praying as the tornado closed in. we could hear the glass shattering out there. so had no idea what was happening. reporter: officials crediting early warnings with zero tornado deaths but the storm didn t leave without tragedy. this is gavin s 12th tornado reporter: beth and allen short say their so gavin, a top meteorology student at the university of oklahoma called to say he was storm chasing friday with two