Friday, March 15, 2013

Geomagnetic Storm Warning (15-16 March)

Australian Region Estimated K-Index MapThe Australian IPS has issued an active alert, with the possibility of minor geomagnetic storms in the next 24 hours from a Coronal Mass Ejection that will just brush past us.

A second M class flare has just occurred, but it is unclear if this has resulted in an Earth-Directed CME (UPDATE: yes, it has, should hit in 2-3 days).

People in Tasmania and Southern New Zealand should be on the alert for aurora from after astronomical twilight (about 1 and a a half hours after sunset) until the early morning of the 16th.

It is possible that Southern Victoria and Northern New Zealand will see aurora, but far less likely. Look to the south for unusual shifting glows.

And it is entirely possible than nothing at all will happen. Have a look for comet Lemmon low in the southern sky, while you are looking for aurora (comet PanSTARRS is long gone).


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