[Windflier]

"The mystery began when a blue light seemed to soar up from behind a mountain in the north of the country. It stopped mid-air, then began to move in circles. Within seconds a giant spiral had covered the entire sky. Then a green-blue beam of light shot out from its centre - lasting for ten to 12 minutes before disappearing completely."

The most astonishing aspect of this is that the blue corkscrew beam came out of the spiral cloud, not the ground, according to observers.

Seeing the pictures at the original article, I assumed that it was the other way around - that the blue light emanated from the ground, and then the gray spiral formed around it. That would seem to indicate a ground-based origin, and provide some framework of logic to explain it.

As it is, this is completely unexplainable. Fascinating phenomenon, to say the least.

[21twelve]

In some of the videos it looked like the blue spiral was trailing the white spiral as it moved. Different perspectives perhaps.

However, if it was sunlight causing part of the effect - the sunlight would hit the higher part of the blue spiral first and as the sun rose the blue spiral would become illuminated more towards the ground. Making it look like the blue “light” was starting at the white spiral and going downwards.