Someone on the Vans Airforce posted this link to a time lapse video of a microburst. It is an amazing video and really gives you a good idea of the power they can have. I lost a Piper Clipper several years ago to a microburst that blew it into a trailer at the airport. The same microburst also broke off one of the tie down rings on a 172 and turned it upside down on a Decathalon.
https://vimeo.com/135811823