Hector (cloud) is known for its consistency and intensity. Lightning rates and updraft speeds are notable aspects of this thunderstorm and during the 1990s National Geographic Magazine published a comprehensive study of the storm with pictures of damaged trees and details of updraft speeds and references to tornadic events. Since the late 1980s the thunderstorm has been the subject of many meteorological studies, many centred on Hector itself but also utilising the consistency of the storm cell to study other aspects of thunderstorms and lightning. Hector (cloud) Hector is the name given to a cumulonimbus, or thundercloud, that forms regularly nearly every
Asperitas (cloud) Asperitas (cloud) Asperitas (formerly known as Undulatus asperatus) is a cloud formation first popularized and proposed as a type of cloud in 2009 by Gavin Pretor-Pinney of the Cloud Appreciation Society. Added to the International Cloud Atlas as a supplementary feature in March 2017, it is the first cloud formation added since cirrus intortus in 1951. The name translates approximately as "roughness". The clouds are closely related to undulatus clouds. Although they appear dark and storm-like, they almost always dissipate without a storm forming. The ominous-looking clouds have been particularly common in the Plains states of the United States, often