Smoke gets in your Eye

I took this picture when visiting London over a year ago. It was actually late afternoon and seeing the sky behind the famous London Eye wheel, my friend and I thought, judging by the dark clouds we would get into some heavy rain real soon. A few hours later we found out that these were smoke clouds caused by a tremendous oil depot explosion in Buncefield some 30 miles north of London. The photo suddenly looked kind of spooky!