Online tools to monitor northern light activity around Calgary:
K-index from the NOAA
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http://www.swpc.noaa.gov/rt_plots/kp_3d.html
- the index usually needs to be 7ish or higher for a chance of seeing the lights as far south as Calgary.
Spaceweather for the Southern Prairies
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http://www.spaceweather.gc.ca/sr-1-e...uthernprairies
- issues geomagnetic storm watches and forecasts
Aurora Watch Alberta
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http://corona-gw.phys.ualberta.ca/AuroraWatch/
- free email alert service to let you know if there's a decent chance of seeing the northern lights in Calgary
Twitter search
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https://twitter.com/#!/search/realti...within%3A100km
- a real-time way of checking to see if there's any northern lights reported in the sky by anyone within 100km of the Calgary area