in an enormous geomagnetic storm this evening, the largest in nearly 20 years. Here are several wide views captured shortly after midnight of the rare (at this latitude) and dynamic light show. Behold the Aurora Borealis in its fullest expression.
The phenomenon began with quite a bit of color variation directly to the north. Parriott Mesa in silhouette on the right.
A gradual color shift towards orange and red occurred very slowly.
The brighter curtains of light moved gradually towards the northeast over a period of about an hour. Castleton Tower at far right.
UPDATE: Here’s a nice summary of the event by our local scribe: Aurora borealis brightens Castle Valley with a colorful display.