A New Cloud On The Horizon?
Cirrus
Cirrus, Cirrocumulus and Cirrostratus are high-level, typically thin clouds at elevations ranging from 10,000 to 60,000 feet (varying due to season or region -- polar, temperate or tropical). Cirrus clouds usually form in nearly straight or curved strands, filaments or hooks.
Author: CBS News Staff
Credit: NWS
