Clouds Formation

- Genus Stratus (St): A uniform layer of non-convective cloud resembling fog but not resting on the ground.
+ Species Stratus nebulosus (St neb): A featureless veil of stratus sometimes producing light drizzle.
+ Species Stratus fractus (St fra): A ragged broken up sheet of stratus that often forms in precipitation falling from a higher cloud deck. This species may also result from a continuous sheet of stratus becoming broken up by the wind.