UFO Causes Lightning Storm Over Rio de Janeiro, Brasil Video, UFO Sighting News.

Date of sighting: Feb 2015
Date of publication: August 2015
Location of sighting: Rio de Janeiro, Brasil

This cloaked UFO is invisible until lightning strikes along its side. UFOs are often seen near storms and are sometimes the cause of such storms. They can also cause tornados and other odd weather phenomenon like golf ball size hail stones. If there is a big storm coming, set up a camera to record some video outside under a roof. You may catch the next UFO sighting. 
Scott C. Waring