NBC News has put together a time-lapse video of the EF-4 tornado that tore through the southern suburbs of Oklahoma City, Okla.
As we told you in the live blog, the National Weather Service says it was at least an EF-4 tornado with winds in excess of 166 mph. The tornado stayed on the ground for 40 minutes and traveled 20 miles.
Article source: http://www.npr.org/blogs/thetwo-way/2013/05/20/185622054/video-a-time-lapse-of-the-oklahoma-tornado?ft=1&f=1001