Wow, cool clouds...

Saw some very interesting clouds today on the way back from dropping the kids off at school. The clouds had formed themselves into a kind of a shelf. Don't know what kind of atmospheric conditions affect the formation of such clouds in that shape...but here's the pics.







Stretched all the way from I would say Delta all the way across what would have been Port Coquitlam a stretch of at least 15-20 miles across at least that's what it seemed like from my view. But to tell you the truth, it was probably a far lot longer than that as my human perspective isn't conducive to accurate estimation of clouds and their size.