Here's a quick little vid that shows the flip before, during and after the solstice. This is using some new tools. .. I think they're sponsored by NASA.
anyways. Thought I'd post as this seemed to be on the news quite a lot this last winter.
[youtube]gPXABS5oKhw[/youtube]
Flip in Polar Vortices
Moderators: Tunnelcat, Jeff250