It is appreciable the spectacularity of these images on web a few days ago. They have been filmed in Russia, posted by a viewer on Instagram and on youtube, and from here the immediate "grapevine" at worldwide. In the frames different tornadoes are well identifiable rose on the water multitude of the Black Sea, a few kms from the coast: a rare phenomenon of multiple whirlwinds, "Crossed" by an airliner...