visible shockwave in the sky possible?

ok. i've been looking around the net and cant find anything, maybe somebody here has tried or may be able to give me some insight on how to acheive it.

basically lets say a beam charging up and shooting into the sky(which i can do) but once it reaches the sky it will have a small explosion(i can do) and send out a shockwave thats visible in the sky(dont know how to do that) and also team colored.

anybody have any ideas?


EDIT: i'm sure i could create a animated texture to do it, but i think an entity would look alot better.