Northern Lights forecast

While it’s not likely we’ll see the aurora borealis here in Northern Illinois tonight, there’s a chance for folks 100-200 miles north of here. Ever wonder how far south the aurora will go? Here’s how it works:

This is the graph that shows the KP-Index. (It’s an auto-update image so this will be accurate at any time.) The higher the level, the better likelihood of seeing auroras further south into North America. Of course, your best chance of seeing the lights are in northern latitudes (Canada and Alaska). Here’s a look at some Midwestern cities and what KP-Index level is needed to see the aurora borealis. You don’t need me to remind you that you’ll only be able to view them when the sky is clear, you’re looking north, and there’s no light pollution nearby (orange glow from cities).

KP-7 Rockford, Illinois
KP-7 Chicago, Illinois
KP-6 Milwaukee, Wisconsin
KP-6 Madison, Wisconsin
KP-5 Green Bay, Wisconsin
KP-6 Grand Rapids, Michigan
KP-7 Detroit, Michigan
KP-5 Marquette, Michigan
KP-6 Rochester, Minnesota
KP-5 Minneapolis, Minnesota
KP-5 Duluth, Minnesota
KP-8 St. Louis, Missouri
KP-8 Indianapolis, Indiana
KP-7 Toledo, Ohio
KP-7 Des Moines, Iowa

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Posted under science, space, weather geek

This post was written by qni_it on July 10, 2013

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