Keep watch on the sky tonight if you live in the northern U.S. and southern Canada. The aurora may make an appearance thanks to a brush with gusty solar winds blowing from a coronal hole, an opening in the sun’s magnetic canopy.
Activity kicked up to minor storm level (Kp=5) this afternoon spreading auroras across the northern parts of Scandinavia. After a slight dip in the action early this evening, activity may pick up again tonight. Or not. Take a look and let us know if anything shows.
* Update 12:30 a.m. — An auroral arc hung around all evening low in the northern sky seen from Duluth, Minn. US. I never saw any rays, but the camera revealed subtle parallel rays in the arc.