Story highlights Ilya Katsman photographed a striking cloud formation on a flight across AustraliaRows of perfectly aligned clouds are known as "morning glory clouds"(CNN) An airline passenger got an amazing surprise when he looked out the window. Ilya Katsman was on board a Virgin Australia flight from Perth to Adelaide in Australia, when he noticed a spectacular cloud formation, made up of rows and rows of perfectly aligned clouds. The rare formation is known as "morning glory clouds," CNN meteorologist Brandon Miller explained. These incredible cloud formations were seen on board VA714 from Perth to Adelaide. pic.twitter.com/IRyYHGKxNL — Virgin Australia (@VirginAustralia) January 9, 2017"The low, horizontal clouds form as a wave travels through the atmosphere and encounters layers of air with different temperatures and humidity levels," he said.

Source: CNN January 12, 2017 18:46 UTC