366 of 2012 - Day 137. This is a concrete plant, near where I work. It's another man-made cloud, and certainly not on a cloudy day, but I like the shot in any case.
Taken with my Canon PowerShot G12 (with my new 58mm tele-converter lens!), f/8, 1/250 sec., ISO-80, no flash, shot outside, camera hand held. Photoshop edits: Unsharp Mask, High Pass Filter, Photo Filter blue on sky, Brightness / Contrast adjustment, Cropping, Text.
Picaboo's Weekly Challenge is posted here: Taking Pictures on a Cloudy Day.