Norway...possible portal? UFO?

[Jnana]

I can understand a once off effect like this being randomly caused by a missile gone wrong. But three events at different times this year in different parts of the world causing the same effect? COME ON! explain that.

Guidance system failure. There are many ways for a guidance system fail (sensors, actuators, power), but a common end result would be the rocket nozzle going hard over to one side causing the missile to go into a spiral.

As for comments about the wind, my take on it is that most of the observed spirals (white and blue) are above the atmosphere. Only the lowest part of the blue spiral is in the atmosphere. Because the white spiral is out of the atmosphere, inertia of the exhaust causes the "black hole" when the rocket shuts off. If this were in the atmosphere the exhaust would only travel a short distance and then hang around. The big white spiral could have never formed in the atmosphere.