I took this shot at Queenstown in April 2015. We ventured out to photograph some stars, but after 30 minutes or so of shooting this whispy cloud came over. As we were quite close to Queenstown it was lit up by the lights and it impeded our ability to see the stars. It did look kinda cool though!
Canon 5D Mark II
17-40 @ 17mm
ISO3200 f5.6 15sec