A while back, I was driving on hwy 120, pretty much in the middle of nowhere. I happened to look at the clouds, and saw a perfect circle of blue sky with what appeared to be a couple concentric shockwaves in the surrounding clouds. The author in me pondered all sorts of causes with my mind settling on a micro meteorite or some kind of localized microwave phenomenon. I have spent many a day looking at the sky and have never seen anything remotely like it.
Oddly enough, there are suddenly tons of images of the "exceedingly rare" hole punch clouds (also called fallstreak formations). The hole I saw differed from these images as there was no wisp of ice falling in the middle.
Have any of you seen anything like this?