The Aurora Reached Arizona Last Night!

September 12th, 2014 by Roy W. Spencer, Ph. D.

As predicted, the first of two coronal mass ejections (CMEs) from the sun produced some good aurora displays last night, as far south as Arizona:

Aurora in Arizona, taken by Chris Schur, Sept. 11, 2014.

Aurora in Arizona, taken by Chris Schur, Sept. 11, 2014.


This was taken about the time the NOAA-15 satellite observed a peak activity level of “10” over the Northern Hemisphere.

Here’s a nice photo from Minnesota:

Aurora seen in Minnesota, by Matthew Moses, Sept. 12, 2014.

Aurora seen in Minnesota, by Matthew Moses, Sept. 12, 2014.

And, where the aurora always seems to be burning up the sky…Fairbanks, Alaska:

Aurora over Fairbanks, Alaska, by J.N. Hall, Sept. 12, 2014.

Aurora over Fairbanks, Alaska, by J.N. Hall, Sept. 12, 2014.

From Finland:

Sept. 12, 2014 aurora in Muonio, Finland, taken by Mika Wist.

Sept. 12, 2014 aurora in Muonio, Finland, taken by Mika Wist.

And another one from Minnesota (uff da!):

Almelund, MN aurora display, Sept. 12, 2014, by Michael Aguirre.

Almelund, MN aurora display, Sept. 12, 2014, by Michael Aguirre.

Finally, here’s the source of the CME, sunspot 2158, as photographed by Sergio Castillo a day after it unleashed the “storm”:

Sunspot 2158, photo by Sergio Castillo, Sept. 11, 2014.

Sunspot 2158, photo by Sergio Castillo, Sept. 11, 2014.

Photos courtesy of Spaceweather.com Realtime Image Gallery.

Hopefully, with the second CME event storm arriving today, there could be another good display tonight.


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