Morguana;
what a great link/page and a good find.
It puts forth a plausible explanation. That the effects on the magnetosphere will do this. That this can even be triggered by planetary alignments, and even shows the event happening on other planets as well.
What an interesting site! Was reading around a bit... nice find.
From their home page:
"All physical existences are weaved in vortical motion; nothing physical in nature is not vortical."
Kinda like that, tintagel ?
Note to Morguana;
they are moving their website. The new URL is:
http://www.uvs-model.com/