Crazy Cloud Formations

I was hanging around with the family the evening of June 2nd, 2008 when I noticed a bizzarre cloud formation to the East. This just got bigger & bigger as the sun set to the West, but I finally grabbed my Canon 40D DSLR and took a few pictures. There is a lot of dynamic range here between the foreground in the dusk light and the bright sky/clouds - digital camera have a tough time capturing that. Your eye is better able to handle/adjust to this, so I have applied some Fill Light to better show how this actually looked. It was surreal and almost like Denver, Colorado (just SE of here) had blown up or something! ;-) These clouds eventually just dissipated - i.e. there was no extreme weather associated with 'em - not even a rainbow.