Much to my surprise, some impressive boiling clouds captured by my iPhone and uploaded without any further processing* using the Blipfoto App.

I've just joined the Cloud Appreciation Society but I couldn't tell you offhand what is going on here - I'll be revising tonight!

UPDATE: *Once I got home I downloaded the blip to my computer and have tweaked the levels a bit as it was quite a dark image (also means the full sized image is uploaded - although it looks like the size is fixed based on the original file uploaded).

UPDATE UPDATE: Also, have just noticed that I posted another cloud picture a year ago!