Formation of a Tornado captured in South-Central Kansas of USA., two days before the devastating Oklahoma tornado.
The video was captured by Paul Samaras, son of National Geographic storm researcher Tim Samaras.
A scary and dangerous research cum hobby to capture when the wind speed is well over 200 miles per hour.
Tragically the storm researcher, his son and one of their friends were killed 10 days after the recordings in the Oklahoma tornado.
- The Stunning Tornado Videos of Storm Chaser Tim Samaras, Who Has Died (newswatch.nationalgeographic.com)