Cirrostratus nebulosus

Cirrostratus nebulosus
Cirrostratus nebulosus clouds being illuminated by the sun
Abbreviation	Cs neb
Symbol
Genus	Cirrus- (curl of hair) -stratus (layered)
Species	nebulosus (full of vapor)
Altitude	Above 6,000 m (Above 20,000 ft)
Classification	Family A (High-level)
Appearance	smooth, fog-like veil
Precipitation cloud?	No

Cirrostratus nebulosus is a type of cirrostratus cloud. The name cirrostratus nebulosus is derived from Latin, meaning "full of vapor, foggy, cloudy, dark". Cirrostratus nebulosus is one of the two most common forms that cirrostratus often takes, with the other being cirrostratus fibratus. The nebulosus species is featureless and uniform, while the fibratus species has a fibrous appearance. Cirrostratus nebulosus are formed by gently rising air. The cloud is often hard to see unless the sun shines through it at the correct angle, forming a halo. While usually very light, the cloud may also be very dense, and the exact appearance of the cloud can vary from one formation to another. In the winter, precipitation often follows behind these clouds; however, they are not a precipitation-producing cloud.