Summary: On September 12th the interplanetary magnetic (IMF) field near Earth turned south for nearly 24 hours. South-pointing IMFs render Earth's magnetosphere vulnerable to solar wind gusts and set the stage for auroras, which high-latitude observers accordingly spotted on September 13th.

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	Photographer, Location	Images	Comments
	Duane Clausen, Menominee,MI Sept. 13	#1, #2, #3, #4, #5, more	D. Clausen: "The display was unremarkable until around 02:00 a.m. local time. [Then I saw] a surprising amount of red -- at times there was very little else but spires of red aurora. Every storm seems to have it's own unique characteristics, this was no exception."