Stratiformis

Definition

A cloud species forming an extensive horizontal layer or sheet, with the individual elements flattened so that the layer dominates over the elements. It is the most common species of altocumulus and stratocumulus.

Field note

Stratiformis is the default form of a mid-level or low layer cloud and indicates stable conditions within that layer. It becomes interesting only when it starts to thicken or to acquire turrets.

Related terms

• Altocumulus · Altocumulus
• Stratocumulus · Stratocumulus
• Undulatus · undulatus