Friday, November 23, 2012

Geomagnetic Storm Begins

The image below is the Planetary K index, which can show of geomagnetic storms that are ongoing here on Earth. As you can see, the anticipated CME (Coronal Mass Ejection) has hit the earth, and will continue through the night.

If we use the value of 4 on this K index, we can figure out how far south the aurora Borealis can be seen. The value of 4 equates to the aurora Borealis being seen way up north in Canada and maybe in the Upper Midwest.


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