Cirrostratus Clouds

Cirrostratus Clouds develop from cirrus clouds that spread out into a thin layer, creating a flat sheetlike appearance.They can give the sky a slightly milky or veiled look. When viewed from the surface of the earth, these ice crystals can create a halo effect around the sun or moon. These clouds are often precursors to precipitation, indicating it may occur within 12 to 24 hours.
Concept Mapping Toolkit
Insitute for Human and Machine Cognition
The University of West Florida