A synoptic scale cloud pattern with a characteristic comma-like shape, often seen on satellite photographs associated with large and intense low-pressure systems.
- Browse Related Terms: Baroclinic leaf shield, Billow Cloud, Catalina Eddy, Cloud Streets, Comma Cloud, Inflow Stinger, Laminar, Lenticular Cloud, Microscale, Morning Glory, Rope Cloud, Stratocumulus, Striations, Tail Cloud