Awesome UFOs Disguised As Clouds Pass Undetected By Human Eyes, Feb 2018, UFO Sighting News.

Here is a great video of some recent sightings found on a weather phenomenon site this week by MrMBB333 of Youtube. He discusses how some of the things on the site do not resemble things found in nature, but instead have qualities that seem more like alien craft. This is the easiest way to hide from human eyes...mimic something that normally is harmless and in nature. 
Scott C. Waring