roll cloud
Noun
Meaning
roll cloud (plural roll clouds)
(meteorology) A low, horizontal, tube-shaped, and relatively rare type of arcus cloud, differing from shelf clouds by being completely detached from other cloud features.
Noun
roll cloud (plural roll clouds)
(meteorology) A low, horizontal, tube-shaped, and relatively rare type of arcus cloud, differing from shelf clouds by being completely detached from other cloud features.