The International Cloud Atlas has named 12 '' types of clouds. They become the new clouds since 1987. The started in 1896. It is the and most authoritative reference on clouds. The World Meteorological Organization (WMO) publishes and decides there is a new cloud. The WMO said you don't need to be an on clouds to find a new . You just need to take a and send it to the WMO.
The cloud creating the biggest online is named asperitas. It looks like big at . Another is the volutus. This a -shaped cloud that looks like it is . The WMO said naming the clouds was , saying: "By learning the of the formations…we pay attention to and value what we see around us." It added that naming the clouds helped to, "value our and to pay attention to our on it".