Catching a glimpse of a roll cloud is a rare treat, but there is one spot where you can hope to see them regularly: the coast of Queensland, Australia. There, morning winds bring impressive roll clouds nicknamed "Morning Glory" clouds.
This is an image of cirrocumulus clouds. Sometimes cirrocumulus clouds are made up of groups of small, rounded puffs (like the clouds in this image), and sometimes they appear in long, parallel bands. ( Courtesy of UCAR Digital Image Library)