Pileus is a cap cloud that can form over a cumulonimbus or large cumulus cloud, whereas a velum feature is a thin horizontal sheet that sometimes forms like an apron around the middle or in front of the parent cloud.
Mini Bio (1) Chuck Norris is familiar to fans worldwide as the star of action films such as The Hitman (1991), The Delta Force (1986) and Delta Force 2: The Colombian Connection (1990). He also starred in Missing in Action (1984) and its sequels, Firewalker (1986) and Sidekicks (1992).
The most known films of Russell Crowe; L.A. Confidential (1997) with Kevin Spacey, Kim Basinger, Danny DeVito and Guy Pearce; The Insider (1999) with Al Pacino; Gladiator (2000) with Joaquin Phoenix, Djimon Hounsou; A Beautiful Mind (2001) with Ed Harris, Jennifer Connelly, Paul Bettany